阅读说明：本技术 黄红色低豆腥味高温脱脂豆粕的生产装置及其制备方法 (Production device of yellowish-red low-beany-flavor high-temperature defatted soybean meal and preparation method thereof ) 是由 时玉强 万华松 时秀芹 陶涛 于 2021-03-05 设计创作，主要内容包括：本发明提出一种黄红色低豆腥味高温脱脂豆粕的生产装置及其制备方法,属于大豆深加工技术领域,能够解决现有豆粕制品的生产方法存在豆腥味严重、豆粕品质低等问题。该制备方法包括：(1)杂质筛分；(2)原料色选；(3)干燥；(4)破瓣与灭酶；(5)闪蒸脱气；(6)辊压与浸提；(7)真空脱溶,其中,蒸汽灭酶处理具体为豆瓣于氨水蒸汽灭酶器中升温至96-150℃后,再于灭酶罐中处理28-45mi n。利用本发明提供的生产装置及其制备方法制得的豆粕具有低豆腥味等特点。本发明能够应用于黄红色低豆腥味脱脂豆粕制备方面。(The invention provides a production device of yellowish red high-temperature defatted soybean meal with low beany flavor and a preparation method thereof, belongs to the technical field of deep processing of soybeans, and can solve the problems of serious beany flavor, low quality of soybean meal and the like in the existing production method of soybean meal products. The preparation method comprises the following steps: (1) screening impurities; (2) selecting raw materials in color; (3) drying; (4) breaking the petals and inactivating enzyme; (5) flash evaporation and degassing; (6) rolling and leaching; (7) vacuum desolventizing, wherein the steam enzyme deactivation treatment is specifically that the bean is heated to 96-150 ℃ in an ammonia water steam enzyme deactivation device, and then treated in an enzyme deactivation tank for 28-45 min. The soybean meal prepared by the production device and the preparation method thereof provided by the invention has the characteristics of low beany flavor and the like. The method can be applied to the preparation of the yellow-red low-beany-flavor defatted soybean meal.)

1. The preparation method of the yellowish red high-temperature defatted soybean meal with low beany flavor is characterized by comprising the following steps:

screening impurities: screening impurities of the soybean raw material;

selecting raw materials in color: carrying out color sorting treatment on the soybean raw material subjected to impurity screening treatment by using a color sorter so as to remove mildewed grains and obtain bean grains subjected to color sorting;

and (3) drying: drying the bean grains after color sorting, and adjusting the water content to 6-11% to obtain dried bean grains;

and (3) breaking petals and inactivating enzyme: carrying out petal breaking treatment on the dried bean particles by using a petal breaking mill to obtain bean petals and bean hulls, and carrying out ammonia steam enzyme deactivation treatment on the bean petals at the temperature of 96-150 ℃ for 28-45 min;

flash evaporation and degassing: carrying out flash evaporation degassing treatment on the bean cotyledon after enzyme deactivation by using a flash evaporation degassing device to remove beany flavor;

rolling and leaching: rolling the flash-evaporated and degassed bean cotyledon to obtain bean flakes, and sequentially performing organic solvent extraction and hot air drying on the bean flakes to obtain dried bean flakes;

vacuum desolventizing: and carrying out vacuum desolventizing treatment twice on the dried bean chips to obtain the yellowish red high-temperature defatted bean pulp with low beany flavor.

2. The method for preparing the yellowish-red low-beany flavor high-temperature defatted soybean meal according to claim 1, wherein in the step of petal breaking and enzyme deactivation, the gas phase of petal breaking is any one of nitrogen, carbon dioxide or argon, and in the step of flash evaporation degassing, the vacuum degree of flash evaporation degassing treatment is 60-70Kpa, and the temperature is 70-82 ℃.

3. The method for preparing the yellowish red high-temperature defatted soybean meal with low beany flavor according to claim 1, wherein the ammonia steam enzyme deactivation treatment is specifically carried out by heating the broad beans in an ammonia steam enzyme deactivation device to 96-150 ℃, and then treating the broad beans in an enzyme deactivation tank for 28-45min, wherein the pH of the ammonia steam is 9.0-10.0;

the thickness of the bean chips is 0.3-0.5mm, the temperature of hot air drying treatment is 140-150 ℃, and the vacuum degree of the two vacuum desolventizing treatments is 6-7 Kpa.

4. A device for producing yellow-red high-temperature defatted soybean meal with low beany flavor is characterized by comprising screening and color sorting devices which are arranged in sequence and used for removing impurities and mildewed grains in soybean raw materials;

the drying tower is communicated with a discharge hole of the screening and color selecting device;

the valve breaking mill is communicated with a discharge hole of the drying tower through an air seal machine;

the cyclone separation device is communicated with the discharge port of the segment breaking mill;

the ammonia water steam enzyme deactivation device is communicated with a discharge hole of the cyclone separation device;

the flash evaporation degassing device is communicated with a discharge hole of the ammonia water steam enzyme deactivation device;

the rolling device is communicated with a discharge hole of the flash degassing device;

the leaching and drying device is communicated with a discharge port of the rolling device;

and the vacuum desolventizing device is communicated with a discharge hole of the leaching and drying device.

5. The device for producing the yellowish-red low-beany flavor high-temperature defatted soybean meal according to claim 4, characterized in that the screening and color separation device further comprises a gravity screen and a color separator, wherein a gravity screen feeding port and a gravity screen discharging port are respectively formed at two ends of the gravity screen, a color separator feeding port and a color separator discharging port are respectively formed at two ends of the color separator, the gravity screen feeding port is connected with the conveying device, and the gravity screen discharging port is communicated with the color separator feeding port;

drying tower feed inlet and drying tower discharge gate are seted up respectively to drying tower body both sides, and drying tower air outlet and drying tower air intake are seted up respectively at the top of the tower and the bottom of the tower, at drying tower air outlet installation draught fan, drying tower air intake installation heat exchanger, heat exchanger and air-blower intercommunication, drying tower feed inlet and look selection machine discharge gate intercommunication.

6. The device for producing the yellowish red low-beany flavor high-temperature defatted soybean meal according to claim 4, wherein the two ends of the segment breaking mill are respectively provided with a segment breaking mill inlet and a segment breaking mill outlet, and the top of the segment breaking mill is provided with a segment breaking mill inlet;

the cyclone separation device is a cyclone separator, one side of a cone of the cyclone separator is provided with an inlet of the cyclone separation device, and the top and the bottom of the cone are respectively provided with an air outlet of the cyclone separation device and a discharge outlet of the cyclone separation device.

7. The apparatus for producing the yellowish red low-beany flavor high-temperature defatted soybean meal according to claim 4, wherein a gas dehydration apparatus is further provided between the petal breaking mill and the cyclone separator, the gas dehydration apparatus further comprising a gas-liquid separator, a gas preparation device communicated with a gas outlet of the gas-liquid separator, and a gas storage tank communicated with a gas outlet of the gas preparation device;

the gas-liquid separator is communicated with an air outlet of the cyclone separation device through an induced draft fan, the gas storage tank is communicated with an air inlet of the segment breaking mill through a gas conveying pipeline, and a check valve is installed on the gas conveying pipeline.

8. The apparatus for producing the yellow-red high-temperature defatted soybean meal with low beany flavor according to claim 4, wherein the ammonia steam enzyme deactivation apparatus further comprises an ammonia steam enzyme deactivation device and an enzyme deactivation tank;

set up aqueous ammonia steam enzyme killer feed inlet and aqueous ammonia steam enzyme killer discharge gate at aqueous ammonia steam enzyme killer both ends, aqueous ammonia steam air inlet is seted up at the top, enzyme pot jar body top and the bottom of going out are seted up respectively and are gone out enzyme jar feed inlet and enzyme pot discharge gate that goes out, and aqueous ammonia steam enzyme killer feed inlet communicates with cyclone discharge gate, and aqueous ammonia steam enzyme killer discharge gate communicates with enzyme pot feed inlet that goes out.

9. The apparatus for producing the yellow-red low-beany flavor high-temperature defatted soybean meal according to claim 4, characterized in that the apparatus for producing the yellow-red low-beany flavor high-temperature defatted soybean meal is further provided with an ammonia steam generating device communicated with the ammonia steam inlet;

the ammonia water steam generating device further comprises an ammonia water steam generator, an ammonia water tank communicated with a liquid inlet on the left side of the ammonia water steam generator and a diluted ammonia water circulating tank communicated with a liquid inlet on the bottom of the ammonia water steam generator.

10. The apparatus for producing the yellowish-red low-beany flavor high-temperature defatted soybean meal of claim 9, wherein the flash degassing apparatus further comprises a flash degassing tank, a condenser, a vacuum pump and a circulation pump;

a flash degassing device feeding port and a flash degassing device discharging port which are communicated with an enzyme deactivation tank discharging port are respectively formed in the top and the bottom of the flash degassing tank body, an ammonia water steam discharging port is formed in the left side of the tank body, a condenser liquid inlet and a condenser liquid outlet are respectively formed in the top and the bottom of the condenser, and a condensed dilute ammonia water discharging port and an ammonia water steam inlet communicated with the ammonia water steam discharging port are respectively formed in the left side and the right side of the condenser;

the inlet of the vacuum pump is communicated with a condensed weak ammonia water outlet, the outlet of the vacuum pump is communicated with a liquid inlet at the right side of the weak ammonia water circulating tank, the inlet of the circulating pump is connected with a conveying pipeline between the ammonia water steam generator and the weak ammonia water circulating tank, the outlet of the circulating pump is communicated with a liquid inlet of the condenser, and a liquid outlet of the condenser is communicated with a liquid inlet at the bottom of the weak ammonia water circulating tank;

the rolling device is a hydraulic rolling machine, and a hydraulic device feeding hole and a hydraulic device discharging hole are respectively formed in two ends of the hydraulic device;

the leaching and drying device further comprises a leaching device and a dryer, wherein a leaching device inlet and a leaching device outlet are respectively formed at two ends of the leaching device, a discharge port of the hydraulic device is communicated with the leaching device inlet, a dryer feed port and a dryer discharge port are respectively formed at two ends of a dryer cone, and the leaching device outlet is communicated with the dryer feed port;

the vacuum desolventizing device further comprises a first vacuum desolventizing device and a second vacuum desolventizing device, the first vacuum desolventizing device is communicated with a discharge hole of the dryer, and the first vacuum desolventizing device and the second vacuum desolventizing device are respectively connected with a first vacuum fan and a second vacuum fan.

Technical Field

The invention belongs to the technical field of deep processing of soybeans, and relates to a production device of soybean meal and a preparation method thereof, in particular to a production device of high-temperature defatted soybean meal with yellow-red color and low beany flavor and a preparation method thereof.

Background

With the continuous progress of the production and development technology of the isolated soy protein, the application field of the isolated soy protein is wider and wider, in particular to meat products, vegetarian and solid beverage products which take the isolated soy protein as a main ingredient. The excellent properties of the soybean protein isolate provide dual guarantee of functionality and nutrition and health care for the development of the foods, and simultaneously provide higher requirements for indexes of various layers of the soybean protein isolate, the raw material for preparing the soybean protein isolate is soybean, the soybean has inherent flavor substances, wherein beany flavor becomes an important bottleneck for restricting the development of the soybean protein isolate, meanwhile, as the soybean contains isoflavone, pigment, protein, saccharide and other substances, non-enzymatic browning can be generated, and unique Maillard reaction is generated to generate unique red and flavor, therefore, the development of the yellowish red and low-beany flavor soybean meal is used for promoting the yellowish red low-beany flavor soybean protein isolate products to play an important role in the development of the soybean foods in China, but the existing preparation method of the soybean meal cannot completely solve the technical problem that the soybean meal products have heavier beany flavor.

Therefore, how to prepare a yellow-red bean pulp product with low beany flavor by optimizing the process and other measures is an important research topic for the technicians in the field.

Disclosure of Invention

The invention provides a production device of yellow-red high-temperature defatted soybean meal with low beany flavor and a preparation method thereof, aiming at the technical problems of serious beany flavor, low soybean meal quality and the like of the existing production method of soybean meal products.

In order to achieve the purpose, the invention adopts the technical scheme that:

the preparation method of the yellowish red high-temperature defatted soybean meal with low beany flavor comprises the following steps:

screening impurities: screening impurities of the soybean raw material;

selecting raw materials in color: carrying out color sorting treatment on the soybean raw material subjected to impurity screening treatment by using a color sorter so as to remove mildewed grains and obtain bean grains subjected to color sorting;

and (3) drying: drying the bean grains after color sorting, and adjusting the water content to 6-11% to obtain dried bean grains;

and (3) breaking petals and inactivating enzyme: carrying out petal breaking treatment on the dried bean particles by using a petal breaking mill to obtain bean petals and bean hulls, and carrying out ammonia steam enzyme deactivation treatment on the bean petals at the temperature of 96-150 ℃ for 28-45 min;

flash evaporation and degassing: carrying out flash evaporation degassing treatment on the bean cotyledon after enzyme deactivation by using a flash evaporation degassing device to remove beany flavor;

rolling and leaching: rolling the flash-evaporated and degassed bean cotyledon to obtain bean flakes, and sequentially performing organic solvent extraction and hot air drying on the bean flakes to obtain dried bean flakes;

vacuum desolventizing: and carrying out vacuum desolventizing treatment twice on the dried bean chips to obtain the yellowish red high-temperature defatted bean pulp with low beany flavor.

Preferably, in the step of valve breaking and enzyme deactivation, the gas phase of the valve breaking mill is any one of nitrogen, carbon dioxide or argon, and in the step of flash degassing, the vacuum degree of flash degassing treatment is 60-70Kpa, and the temperature is 70-82 ℃.

Preferably, the ammonia water steam enzyme deactivation treatment is specifically that bean cotyledons are heated to 96-150 ℃ in an ammonia water steam enzyme deactivation device, and then treated in an enzyme deactivation tank for 28-45min, wherein the pH value of the used ammonia water steam is 9.0-10.0;

the thickness of the bean chips is 0.3-0.5mm, the temperature of hot air drying treatment is 140-150 ℃, and the vacuum degree of the two vacuum desolventizing treatments is 6-7 Kpa.

The invention also provides a device for producing the yellow-red low-beany-flavor high-temperature defatted soybean meal, which comprises a screening and color sorting device which are sequentially arranged and used for removing impurities and mildewed grains in the soybean raw material;

the drying tower is communicated with a discharge hole of the screening and color selecting device;

the valve breaking mill is communicated with a discharge hole of the drying tower through an air seal machine;

the cyclone separation device is communicated with the discharge port of the segment breaking mill;

the ammonia water steam enzyme deactivation device is communicated with a discharge hole of the cyclone separation device;

the flash evaporation degassing device is communicated with a discharge hole of the ammonia water steam enzyme deactivation device;

the rolling device is communicated with a discharge hole of the flash degassing device;

the leaching and drying device is communicated with a discharge port of the rolling device;

and the vacuum desolventizing device is communicated with a discharge hole of the leaching and drying device.

Preferably, the screening and color selection device further comprises a specific gravity screen and a color selector, wherein a specific gravity screen feeding port and a specific gravity screen discharging port are respectively formed at two ends of the specific gravity screen, a color selector feeding port and a color selector discharging port are respectively formed at two ends of the color selector, the specific gravity screen feeding port is connected with the conveying device, and the specific gravity screen discharging port is communicated with the color selector feeding port;

drying tower feed inlet and drying tower discharge gate are seted up respectively to drying tower body both sides, and drying tower air outlet and drying tower air intake are seted up respectively at the top of the tower and the bottom of the tower, at drying tower air outlet installation draught fan, drying tower air intake installation heat exchanger, heat exchanger and air-blower intercommunication, drying tower feed inlet and look selection machine discharge gate intercommunication.

Preferably, a feeding port and a discharging port of the segment breaking mill are respectively arranged at two ends of the segment breaking mill, and an air inlet of the segment breaking mill is arranged at the top of the segment breaking mill;

the cyclone separation device is a cyclone separator, one side of a cone of the cyclone separator is provided with an inlet of the cyclone separation device, and the top and the bottom of the cone are respectively provided with an air outlet of the cyclone separation device and a discharge outlet of the cyclone separation device.

Preferably, a gas dehydration device is further arranged between the valve breaking mill and the cyclone separator, and the gas dehydration device further comprises a gas-liquid separator, a gas preparation device communicated with a gas outlet of the gas-liquid separator and a gas storage tank communicated with a gas outlet of the gas preparation device;

the gas-liquid separator is communicated with an air outlet of the cyclone separation device through an induced draft fan, the gas storage tank is communicated with an air inlet of the segment breaking mill through a gas conveying pipeline, and a check valve is installed on the gas conveying pipeline.

Preferably, the ammonia water steam enzyme deactivation device further comprises an ammonia water steam enzyme deactivation device and an enzyme deactivation tank;

set up aqueous ammonia steam enzyme killer feed inlet and aqueous ammonia steam enzyme killer discharge gate at aqueous ammonia steam enzyme killer both ends, aqueous ammonia steam air inlet is seted up at the top, enzyme pot jar body top and the bottom of going out are seted up respectively and are gone out enzyme jar feed inlet and enzyme pot discharge gate that goes out, and aqueous ammonia steam enzyme killer feed inlet communicates with cyclone discharge gate, and aqueous ammonia steam enzyme killer discharge gate communicates with enzyme pot feed inlet that goes out.

Preferably, the device for producing the yellow-red low-beany-flavor high-temperature defatted soybean meal is also provided with an ammonia water steam generating device communicated with the ammonia water steam inlet;

the ammonia water steam generating device further comprises an ammonia water steam generator, an ammonia water tank communicated with a liquid inlet on the left side of the ammonia water steam generator and a diluted ammonia water circulating tank communicated with a liquid inlet on the bottom of the ammonia water steam generator.

Preferably, the flash degassing device further comprises a flash degassing tank, a condenser, a vacuum pump and a circulating pump;

a flash degassing device feeding port and a flash degassing device discharging port which are communicated with an enzyme deactivation tank discharging port are respectively formed in the top and the bottom of the flash degassing tank body, an ammonia water steam discharging port is formed in the left side of the tank body, a condenser liquid inlet and a condenser liquid outlet are respectively formed in the top and the bottom of the condenser, and a condensed dilute ammonia water discharging port and an ammonia water steam inlet communicated with the ammonia water steam discharging port are respectively formed in the left side and the right side of the condenser;

the inlet of the vacuum pump is communicated with a condensed weak ammonia water outlet, the outlet of the vacuum pump is communicated with a liquid inlet at the right side of the weak ammonia water circulating tank, the inlet of the circulating pump is connected with a conveying pipeline between the ammonia water steam generator and the weak ammonia water circulating tank, the outlet of the circulating pump is communicated with a liquid inlet of the condenser, and a liquid outlet of the condenser is communicated with a liquid inlet at the bottom of the weak ammonia water circulating tank;

the rolling device is a hydraulic rolling machine, and a hydraulic device feeding hole and a hydraulic device discharging hole are respectively formed in two ends of the hydraulic device;

the leaching and drying device further comprises a leaching device and a dryer, wherein a leaching device inlet and a leaching device outlet are respectively formed at two ends of the leaching device, a discharge port of the hydraulic device is communicated with the leaching device inlet, a dryer feed port and a dryer discharge port are respectively formed at two ends of a dryer cone, and the leaching device outlet is communicated with the dryer feed port;

the vacuum desolventizing device further comprises a first vacuum desolventizing device and a second vacuum desolventizing device, the first vacuum desolventizing device is communicated with a discharge hole of the dryer, and the first vacuum desolventizing device and the second vacuum desolventizing device are respectively connected with a first vacuum fan and a second vacuum fan.

Compared with the prior art, the invention has the advantages and positive effects that:

1. the invention provides a preparation method of high-temperature defatted soybean meal with low yellow-red beany flavor, which comprises the following steps of sequentially carrying out impurity screening, raw material color selection, drying, petal breaking and enzyme deactivation, flash degassing, rolling, leaching, vacuum desolventizing and the like on a soybean raw material, and finally preparing to obtain ideal high-temperature defatted soybean meal with low yellow-red beany flavor;

2. the invention mainly improves the following steps in order to solve the problem of heavy beany flavor in the existing bean pulp preparation process: on one hand, the oxidation of lipoxidase in the soybeans is prevented by isolating oxygen by using inert gas in the process of splitting the segments, so that the generation of beany flavor substances in the production process of bean pulp is reduced; on the other hand, the soybean raw material is subjected to flash evaporation degassing treatment by using a flash evaporation degassing device, the boiling point of volatile organic matters is reduced by using vacuum, the volatile organic matters are removed, and the purpose of reducing the beany flavor of the soybean meal is achieved;

3. in order to prepare the ideal yellowish-red low-beany-flavor high-temperature defatted soybean meal, ammonia water steam with the pH value of 9.0-10.0 is used in the steps of steam enzyme deactivation and flash evaporation degassing to promote the isomerization and yellowing of soybeans under the alkaline condition, and meanwhile, the high-pH environment promotes the progress of a carboxyl-ammonia reaction to promote non-enzymatic browning;

4. the invention also provides a complete device for producing the yellow-red high-temperature defatted soybean meal with low beany flavor, which integrates impurity screening, color sorting, drying, petal breaking and enzyme deactivation, flash degassing, rolling and leaching and vacuum desolventizing devices, and has the advantages of simple and convenient assembly, high automation degree, low beany flavor of the soybean meal prepared by the device and good quality.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus for producing yellowish red low-beany flavor high-temperature defatted soybean meal according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of a drying tower provided in accordance with an embodiment of the present invention;

FIG. 3 is a partial enlarged view of the valve-breaking mill, the gas dehydration device and the cyclone separator provided by the embodiment of the invention;

FIG. 4 is a partially enlarged view of an ammonia water vapor generation device and a flash degassing device according to an embodiment of the present invention.

In the above figures, 1 is a specific gravity sieve; 2. a color selector; 3. a drying tower; 4. grinding the broken petals; 5. a cyclone separator; 6. a gas dehydration unit; 7. ammonia water steam enzyme-killing device; 8. an enzyme deactivation tank; 9. a flash evaporation degassing tank; 11. a feed port of a gravity screen; 12. a specific gravity sieve discharge port; 13. a rolling device; 14. an extractor; 15. a dryer; 16. a first vacuum desolventizer; 17. a second vacuum desolventizer; 18. an ammonia water vapor generator; 19. an ammonia tank; 20. a dilute ammonia water circulation tank; 21. a feed inlet of the color sorter; 22. a discharge hole of the color selector; 31. a feed inlet of the drying tower; 32. a discharge hole of the drying tower; 33. an air outlet of the drying tower; 34. an air inlet of the drying tower; 35. an induced draft fan; 36. a heat exchanger; 37. a blower; 41. a feed port is ground by a segment breaking mill; 42. a discharging port of the segment breaking mill; 43. a valve is broken and an air inlet is ground; 51. an inlet of a cyclone separation device; 52. an air outlet of the cyclone separation device; 53. a discharge port of the cyclone separation device; 61. a gas-liquid separator; 62. a gas preparation device; 63. a gas storage tank; 64. a check valve; 71. a feed inlet of an ammonia water steam enzyme killer; 72. a discharge hole of the ammonia water steam enzyme killer; 73. an ammonia steam inlet; 81. a feed inlet of the enzyme deactivation tank; 82. a discharge hole of the enzyme deactivation tank; 91. a condenser; 92. a vacuum pump; 93. a circulation pump; 94. a feed inlet of a flash degassing device; 95. a discharge port of the flash degassing device; 96. an ammonia water vapor outlet; 131. a feed port of the hydraulic device; 132. a discharge port of the hydraulic device; 141. an inlet of the extractor; 142. an outlet of the extractor; 151. a dryer feed inlet; 152. a discharge port of the dryer; 161. a first vacuum blower; 171. a second vacuum blower; 911. a liquid inlet of a condenser; 912. a condenser liquid outlet; 913. a condensed weak ammonia water outlet; 914. and an ammonia water steam inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a preparation method of yellow-red high-temperature defatted soybean meal with low beany flavor, which comprises the following steps:

s1, screening impurities: screening impurities of the soybean raw material;

s2, selecting raw materials in color: carrying out color sorting treatment on the soybean raw material subjected to impurity screening treatment by using a color sorter 2 to remove mildewed grains and obtain bean grains subjected to color sorting;

s3, drying: drying the bean grains after color sorting, and adjusting the water content to 6-11% to obtain dried bean grains;

s4, flap breaking and enzyme killing: carrying out petal breaking treatment on the dried bean particles by using a petal breaking mill 4 to obtain bean petals and bean curd skin, and carrying out ammonia water steam enzyme deactivation treatment on the bean petals at the temperature of 96-150 ℃ for 28-45 min;

s5, flash degassing: carrying out flash evaporation degassing treatment on the bean cotyledon after enzyme deactivation by using a flash evaporation degassing device to remove beany flavor;

s6, rolling and leaching: rolling the flash-evaporated and degassed bean cotyledon to obtain bean flakes, and sequentially performing organic solvent extraction and hot air drying on the bean flakes to obtain dried bean flakes;

s7, vacuum desolventizing: and carrying out vacuum desolventizing treatment twice on the dried bean chips to obtain the yellowish red high-temperature defatted bean pulp with low beany flavor.

In a preferred embodiment, in the flap breaking and enzyme inactivating step, the gas phase of the flap breaking mill 4 is any one of nitrogen, carbon dioxide or argon, and in the flash degassing step, the vacuum degree of the flash degassing treatment is 60-70Kpa, and the temperature is 70-82 ℃.

In a preferred embodiment, the ammonia water steam enzyme deactivation treatment is specifically that bean cotyledons are heated to 96-150 ℃ in an ammonia water steam enzyme deactivation device (7), and then treated in an enzyme deactivation tank 8 for 28-45min, wherein the pH value of the used ammonia water steam is 9.0-10.0;

the thickness of the bean chips is 0.3-0.5mm, the temperature of hot air drying treatment is 140-150 ℃, and the vacuum degree of the two vacuum desolventizing treatments is 6-7 Kpa.

The invention also provides a device for producing the yellow-red low-beany-flavor high-temperature defatted soybean meal, which comprises a screening and color sorting device which are sequentially arranged and used for removing impurities and mildewed grains in the soybean raw material;

the drying tower 3 is communicated with a discharge hole of the screening and color selecting device;

the valve breaking mill 4 is communicated with a discharge hole 32 of the drying tower through an air seal machine;

the cyclone separation device is communicated with the valve breaking mill discharge port 42;

the ammonia water steam enzyme deactivation device is communicated with a discharge hole 53 of the cyclone separation device;

the flash evaporation degassing device is communicated with a discharge hole of the ammonia water steam enzyme deactivation device;

the rolling device 13 is communicated with a discharge port 95 of the flash degassing device;

the leaching and drying device is communicated with a discharge port 132 of the rolling device;

and the vacuum desolventizing device is communicated with a discharge hole of the leaching and drying device.

In a preferred embodiment, the screening and color selection device further comprises a gravity screen 1 and a color selector 2, wherein a gravity screen feeding hole 11 and a gravity screen discharging hole 12 are respectively formed at two ends of the gravity screen 1, a color selector feeding hole 21 and a color selector discharging hole 22 are respectively formed at two ends of the color selector 2, the gravity screen feeding hole 11 is connected with the conveying device, and the gravity screen discharging hole 12 is communicated with the color selector feeding hole 21;

3 tower body both sides of drying tower are seted up drying tower feed inlet 31 and drying tower discharge gate 32 respectively, and drying tower air outlet 33 and drying tower air intake 34 are seted up respectively at the top of the tower and the bottom of the tower, at drying tower air outlet 33 installation draught fan 35, and drying tower air intake 34 installation heat exchanger 36, heat exchanger 36 and air-blower 37 intercommunication, drying tower feed inlet 31 and look select quick-witted discharge gate 22 intercommunication.

In a preferred embodiment, both ends of the segment grinding mill 4 are respectively provided with a segment grinding feed port 41 and a segment grinding discharge port 42, and the top of the segment grinding mill 4 is provided with a segment grinding air inlet 43;

the cyclone separation device is a cyclone separator 5, one side of a cone of the cyclone separator 5 is provided with a cyclone separation device inlet 51, and the top and the bottom of the cone are respectively provided with a cyclone separation device air outlet 52 and a cyclone separation device discharge hole 53.

In a preferred embodiment, a gas dehydration device 6 is further arranged between the flap mill 4 and the cyclone separator 5, and the gas dehydration device 6 further comprises a gas-liquid separator 61, a gas preparation device 62 communicated with the gas outlet of the gas-liquid separator 61 and a gas storage tank 63 communicated with the gas outlet of the gas preparation device 62;

the gas-liquid separator 61 is communicated with the air outlet 52 of the cyclone separation device through the induced draft fan 35, the gas storage tank 63 is communicated with the valve breaking grinding air inlet 43 through a gas conveying pipeline, and the check valve 64 is arranged on the gas conveying pipeline.

In a preferred embodiment, the ammonia water steam enzyme deactivation device further comprises an ammonia water steam enzyme deactivation device 7 and an enzyme deactivation tank 8;

an ammonia water steam enzyme killer feed inlet 71 and an ammonia water steam enzyme killer discharge outlet 72 are formed in two ends of the ammonia water steam enzyme killer 7, an ammonia water steam air inlet 73 is formed in the top of the ammonia water steam enzyme killer 7, an enzyme killing tank feed inlet 81 and an enzyme killing tank discharge outlet 82 are formed in the top and the bottom of the enzyme killing tank 8 respectively, the ammonia water steam enzyme killer feed inlet 71 is communicated with the cyclone separation device discharge outlet 53, and the ammonia water steam enzyme killer discharge outlet 72 is communicated with the enzyme killing tank feed inlet 81.

In a preferred embodiment, the device for producing the yellow-red low-beany-flavor high-temperature defatted soybean meal is further provided with an ammonia steam generating device communicated with the ammonia steam inlet 73;

the ammonia water steam generating device further comprises an ammonia water steam generator 18, an ammonia water tank 19 communicated with a liquid inlet on the left side of the ammonia water steam generator 18 and a diluted ammonia water circulating tank 20 communicated with a liquid inlet on the bottom of the ammonia water steam generator 18.

In a preferred embodiment, the flash degassing apparatus further comprises a flash degassing tank 9, a condenser 91, a vacuum pump 92 and a circulation pump 93;

a flash degassing device feeding hole 94 and a flash degassing device discharging hole 95 which are communicated with the enzyme deactivation tank discharging hole 82 are respectively formed in the top and the bottom of the flash degassing tank 9, an ammonia water steam discharging hole 96 is formed in the left side of the tank, a condenser liquid inlet 911 and a condenser liquid outlet 912 are respectively formed in the top and the bottom of the condenser 91, and a condensed dilute ammonia water discharging hole 913 and an ammonia water steam inlet 914 which is communicated with the ammonia water steam discharging hole 96 are respectively formed in the left side and the right side;

an inlet of the vacuum pump 92 is communicated with a condensed weak ammonia water discharge port 913, an outlet of the vacuum pump 92 is communicated with a liquid inlet on the right side of the tank body of the weak ammonia water circulation tank 20, an inlet of the circulating pump 93 is connected with a conveying pipeline between the ammonia water steam generator 18 and the weak ammonia water circulation tank 20, an outlet of the circulating pump 93 is communicated with a liquid inlet 911 of the condenser, and a liquid outlet 912 of the condenser is communicated with a liquid inlet at the bottom of the weak ammonia water;

the rolling device 13 is a hydraulic rolling machine, and both ends of the hydraulic device 13 are respectively provided with a hydraulic device feeding port 131 and a hydraulic device discharging port 132;

the leaching and drying device further comprises a leaching device 14 and a dryer 15, wherein two ends of the leaching device 14 are respectively provided with a leaching device inlet 141 and a leaching device outlet 142, a hydraulic device discharge port 132 is communicated with the leaching device inlet 141, two ends of a cone of the dryer 15 are respectively provided with a dryer feed port 151 and a dryer discharge port 152, and the leaching device outlet 142 is communicated with the dryer feed port 151;

the vacuum desolventizing device further comprises a first vacuum desolventizing device 16 and a second vacuum desolventizing device 17, the first vacuum desolventizing device 16 is communicated with a discharge hole 152 of the dryer, and the first vacuum desolventizing device 16 and the second vacuum desolventizing device 17 are respectively connected with a first vacuum fan 161 and a second vacuum fan 171.

In order to more clearly and specifically describe the production apparatus of the yellowish red low-beany flavor high-temperature defatted soybean meal and the preparation method thereof provided by the embodiments of the present invention, the following will be described with reference to specific embodiments.

Comparative example 1

The comparative example provides a preparation process of conventional soybean meal, which specifically comprises the following steps:

(1) screening impurities such as cobblestone, legume weeds and the like in the soybean raw material in a specific gravity screen to obtain the screened soybean raw material;

(2) carrying out color sorting treatment on the soybean raw material subjected to impurity screening treatment by using a color sorter to remove mildewed grains and color-changed grains;

(3) the bean grains after color sorting enter a drying tower, hot air heated by a heat exchanger enters the drying tower through an air inlet of the drying tower by an air blower, the moisture of the soybeans is adjusted to be 8%, the dried air passes through an air duct outlet and is discharged from the drying tower by an induced draft fan, and the dried soybeans are discharged out of a system through the outlet of the drying tower and enter a petal breaking system;

(4) dry bean particles enter a broken bean system, bean cotyledons and bean skins after the bean cotyledons are broken grind an outlet from the broken bean system and then enter a cyclone separator through an inlet of the cyclone separator, the bean cotyledons enter a steam enzyme deactivation system through an air seal machine to perform steam enzyme deactivation treatment, and the specific treatment conditions are as follows: performing steam enzyme deactivation treatment at 85 deg.C for 30 min;

(5) the bean cotyledon after enzyme deactivation enters a softening system and is softened at 82 ℃;

(6) the softened bean cotyledon enters a hydraulic roller press for rolling, and the thickness of the bean flakes is controlled to be 0.6 mm;

(7) feeding the pressed bean chips into a horizontal rotation type extractor, extracting by using an organic solvent to obtain mixed oil, recovering the mixed oil, feeding the mixed oil into a vegetable oil extraction system, feeding the degreased bean pulp into a medium steam heating device, heating at 160 ℃, and drying by hot air at 120 ℃;

(8) and (3) putting the dried soybean meal into a vacuum desolventizing device, performing vacuum desolventizing by using a vacuum fan, recovering the solvent, controlling the vacuum degree to be 5kpa, after the soybean meal is removed once, performing vacuum desolventizing by using the vacuum fan in the vacuum desolventizing device, recovering the solvent, and controlling the vacuum degree to be 5kpa to prepare the low-temperature soybean meal.

Example 1

The embodiment provides a method for producing soybean meal by using a yellow-red low-beany-flavor high-temperature defatted soybean meal production device, which specifically comprises the following steps:

(1) screening impurities: the soybean raw material enters a specific gravity sieve 1 through a specific gravity sieve feeding port 11, impurities such as cobblestones, legume weeds and the like are sieved, and the sieved soybean raw material is discharged out of the specific gravity sieve 1 through a specific gravity sieve discharging port 12;

(2) selecting raw materials in color: the soybean raw material after the impurity screening treatment enters a color sorter 2 through a feed inlet 21 of the color sorter for color sorting treatment, mildewed grains are removed, and the soybean grains after the color sorting exit from the color sorter 2 through a discharge outlet 22 of the color sorter;

(3) and (3) drying: the bean granules after color sorting enter a drying tower 3 through a drying tower feeding hole 31, hot air heated by a heat exchanger 35 enters the drying tower 3 through a drying tower air inlet 34 through an air blower 36, the moisture of the soybean raw material is regulated to 11%, the air after drying treatment is discharged from a drying tower air outlet 33 through an induced draft fan 35, and the dried bean granules are discharged out of the drying tower 3 through a drying tower discharging hole 32;

(4) and (3) breaking petals and inactivating enzyme: dried bean particles enter a broken bean mill 4 through a broken bean mill feeding port 41, the gas phase of the broken bean mill 4 is nitrogen, the dried bean particles are broken in the broken bean mill 4 to obtain bean skin and bean cotyledon, the bean cotyledon is discharged from the broken bean mill 4 through a broken bean mill discharging port 42, and then enters a cyclone separator 5 through a cyclone separator inlet 51;

the nitrogen enters the valve breaking mill 4, then enters the cyclone separator 5 through the inlet 51 of the cyclone separation device, is discharged from the air outlet 52 of the cyclone separation device through the induced draft fan 35, and sequentially enters the gas-liquid separator 61 for dehydration treatment, the dehydrated nitrogen recovers the nitrogen through the gas preparation device 62, the recovered nitrogen enters the gas storage tank 63 for storage and recycling, and the nitrogen enters the valve breaking mill 4 through the check valve 64 during use;

bean segments enter an ammonia water steam enzyme deactivation device 7 through a discharge hole 53 of a cyclone separation device, the temperature of the bean segments is quickly raised to 96 ℃ firstly in the ammonia water steam enzyme deactivation device 7, then the bean segments are maintained for 35min in an enzyme deactivation tank 8, condensed water generated in the steam process is discharged by a steam trap connected to the steam enzyme deactivation device 7, wherein ammonia water steam used in the ammonia water steam enzyme deactivation device 7 is prepared by food-grade ammonia water stored in an ammonia water tank 19 and ammonia water in a diluted ammonia water circulating tank 20 through an ammonia water steam generator 18, and then enters the ammonia water steam enzyme deactivation device 7 through an ammonia water steam inlet 73;

(5) flash evaporation and degassing: the bean cotyledon after enzyme deactivation enters a flash evaporation degassing tank 9 through a feed inlet 94 of a flash evaporation degassing device, the vacuum degree in the flash evaporation degassing tank 9 is controlled at 60Kpa by using a vacuum pump 92, the temperature is controlled at 82 ℃, the pH value of ammonia water steam is 9.0, condensed weak ammonia water collected by the vacuum pump 92 from a condenser 91 enters a weak ammonia water circulating tank 20, and the weak ammonia water enters the condenser 91 through a circulating pump 93 and is matched with the vacuum pump 92 to complete flash evaporation degassing treatment;

(6) rolling and leaching: the bean paste after flash evaporation degassing treatment enters a hydraulic roller press for rolling, the thickness of the bean flakes is controlled to be 0.3mm, the bean flakes enter a flat-turn type extractor through an extractor inlet 141, are extracted by using an organic solvent and then enter a dryer 15 for drying treatment at the temperature of 140 ℃;

(7) vacuum desolventizing: and (3) putting the dried bean slices into a first vacuum desolventizing device 16, performing vacuum desolventizing by using a first vacuum fan 161, controlling the vacuum degree to be 6Kpa, recovering the solvent, then putting the dried bean slices into a second vacuum desolventizing device 17 for desolventizing again, controlling the vacuum degree to be 6Kpa, recovering the solvent, and performing desolventizing twice to obtain the yellowish red low-beany flavor high-temperature defatted bean pulp.

Example 2

The embodiment provides a method for producing soybean meal by using a yellow-red low-beany-flavor high-temperature defatted soybean meal production device, which specifically comprises the following steps:

(1) screening impurities: the soybean raw material enters a specific gravity sieve 1 through a specific gravity sieve feeding port 11, impurities such as cobblestones, legume weeds and the like are sieved, and the sieved soybean raw material is discharged out of the specific gravity sieve 1 through a specific gravity sieve discharging port 12;

(2) selecting raw materials in color: the soybean raw material after the impurity screening treatment enters a color sorter 2 through a feed inlet 21 of the color sorter for color sorting treatment, mildewed grains are removed, and the soybean grains after the color sorting exit from the color sorter 2 through a discharge outlet 22 of the color sorter;

(3) and (3) drying: the bean granules after color sorting enter a drying tower 3 through a drying tower feeding hole 31, hot air heated by a heat exchanger 35 enters the drying tower 3 through a drying tower air inlet 34 through an air blower 36, the moisture of the soybean raw material is regulated to 9%, the air after drying treatment is discharged from a drying tower air outlet 33 through an induced draft fan 35, and the dried bean granules are discharged out of the drying tower 3 through a drying tower discharging hole 32;

(4) and (3) breaking petals and inactivating enzyme: dried bean particles enter a broken bean mill 4 through a broken bean mill feeding port 41, the gas phase of the broken bean mill 4 is nitrogen, the dried bean particles are broken in the broken bean mill 4 to obtain bean skin and bean cotyledon, the bean cotyledon is discharged from the broken bean mill 4 through a broken bean mill discharging port 42, and then enters a cyclone separator 5 through a cyclone separator inlet 51;

the nitrogen enters the valve breaking mill 4, then enters the cyclone separator 5 through the inlet 51 of the cyclone separation device, is discharged from the air outlet 52 of the cyclone separation device through the induced draft fan 35, and sequentially enters the gas-liquid separator 61 for dehydration treatment, the dehydrated nitrogen recovers the nitrogen through the gas preparation device 62, the recovered nitrogen enters the gas storage tank 63 for storage and recycling, and the nitrogen enters the valve breaking mill 4 through the check valve 64 during use;

bean segments enter an ammonia water steam enzyme deactivation device 7 through a discharge hole 53 of a cyclone separation device, the temperature of the bean segments is quickly raised to 150 ℃ firstly in the ammonia water steam enzyme deactivation device 7, then the bean segments are maintained for 28min in an enzyme deactivation tank 8, condensed water generated in the steam process is discharged by a steam trap connected to the steam enzyme deactivation device 7, wherein ammonia water steam used in the ammonia water steam enzyme deactivation device 7 is prepared by food-grade ammonia water stored in an ammonia water tank 19 and ammonia water in a diluted ammonia water circulating tank 20 through an ammonia water steam generator 18, and then enters the ammonia water steam enzyme deactivation device 7 through an ammonia water steam inlet 73;

(5) flash evaporation and degassing: the bean cotyledon after enzyme deactivation enters a flash evaporation degassing tank 9 through a feed inlet 94 of a flash evaporation degassing device, the vacuum degree in the flash evaporation degassing tank 9 is controlled at 70Kpa by using a vacuum pump 92, the temperature is controlled at 70 ℃, the pH value of ammonia water steam is 10.0, condensed weak ammonia water collected by the vacuum pump 92 from a condenser 91 enters a weak ammonia water circulating tank 20, and the weak ammonia water enters the condenser 91 through a circulating pump 93 and is matched with the vacuum pump 92 to complete flash evaporation degassing treatment;

(6) rolling and leaching: the bean paste after flash evaporation degassing treatment enters a hydraulic roller press for rolling, the thickness of the bean flakes is controlled to be 0.5mm, the bean flakes enter a flat-turn type extractor through an extractor inlet 141, are extracted by using an organic solvent and then enter a dryer 15 for drying treatment at the temperature of 145 ℃;

(7) vacuum desolventizing: and (3) putting the dried bean slices into a first vacuum desolventizing device 16, performing vacuum desolventizing by using a first vacuum fan 161, controlling the vacuum degree to be 7Kpa, recovering the solvent, then putting the dried bean slices into a second vacuum desolventizing device 17 for desolventizing again, controlling the vacuum degree to be 7Kpa, recovering the solvent, and performing desolventizing twice to obtain the yellowish red low-beany flavor high-temperature defatted bean pulp.

Example 3

The embodiment provides a method for producing soybean meal by using a yellow-red low-beany-flavor high-temperature defatted soybean meal production device, which specifically comprises the following steps:

(1) screening impurities: the soybean raw material enters a specific gravity sieve 1 through a specific gravity sieve feeding port 11, impurities such as cobblestones, legume weeds and the like are sieved, and the sieved soybean raw material is discharged out of the specific gravity sieve 1 through a specific gravity sieve discharging port 12;

(2) selecting raw materials in color: the soybean raw material after the impurity screening treatment enters a color sorter 2 through a feed inlet 21 of the color sorter for color sorting treatment, mildewed grains are removed, and the soybean grains after the color sorting exit from the color sorter 2 through a discharge outlet 22 of the color sorter;

(3) and (3) drying: the bean granules after color sorting enter a drying tower 3 through a drying tower feeding hole 31, hot air heated by a heat exchanger 35 enters the drying tower 3 through a drying tower air inlet 34 through an air blower 36, the moisture of the soybean raw material is regulated to 9%, the air after drying treatment is discharged from a drying tower air outlet 33 through an induced draft fan 35, and the dried bean granules are discharged out of the drying tower 3 through a drying tower discharging hole 32;

(4) and (3) breaking petals and inactivating enzyme: dried bean particles enter a broken bean mill 4 through a broken bean mill feeding port 41, the gas phase of the broken bean mill 4 is nitrogen, the dried bean particles are broken in the broken bean mill 4 to obtain bean skin and bean cotyledon, the bean cotyledon is discharged from the broken bean mill 4 through a broken bean mill discharging port 42, and then enters a cyclone separator 5 through a cyclone separator inlet 51;

the nitrogen enters the valve breaking mill 4, then enters the cyclone separator 5 through the inlet 51 of the cyclone separation device, is discharged from the air outlet 52 of the cyclone separation device through the induced draft fan 35, and sequentially enters the gas-liquid separator 61 for dehydration treatment, the dehydrated nitrogen recovers the nitrogen through the gas preparation device 62, the recovered nitrogen enters the gas storage tank 63 for storage and recycling, and the nitrogen enters the valve breaking mill 4 through the check valve 64 during use;

bean segments enter an ammonia water steam enzyme deactivation device 7 through a discharge hole 53 of a cyclone separation device, the temperature of the bean segments is quickly raised to 140 ℃ in the ammonia water steam enzyme deactivation device 7, then the bean segments are maintained for 45min in an enzyme deactivation tank 8, condensed water generated in the steam process is discharged by a steam trap connected to the steam enzyme deactivation device 7, ammonia water steam used in the ammonia water steam enzyme deactivation device 7 is prepared by food-grade ammonia water stored in an ammonia water tank 19 and ammonia water in a diluted ammonia water circulation tank 20 through an ammonia water steam generator 18, and then enters the ammonia water steam enzyme deactivation device 7 through an ammonia water steam inlet 73;

(5) flash evaporation and degassing: the bean cotyledon after enzyme deactivation enters a flash evaporation degassing tank 9 through a feed inlet 94 of a flash evaporation degassing device, the vacuum degree in the flash evaporation degassing tank 9 is controlled to be 65Kpa by using a vacuum pump 92, the temperature is controlled to be 80 ℃, the pH value of ammonia water steam is 9.5, condensed weak ammonia water collected by the vacuum pump 92 from a condenser 91 enters a weak ammonia water circulating tank 20, and the weak ammonia water enters the condenser 91 through a circulating pump 93 and is matched with the vacuum pump 92 to complete flash evaporation degassing treatment;

(6) rolling and leaching: the bean paste after flash evaporation degassing treatment enters a hydraulic roller press for rolling, the thickness of the bean flakes is controlled to be 0.4mm, the bean flakes enter a flat-turn type extractor through an extractor inlet 141, are extracted by using an organic solvent and then enter a dryer 15 for drying treatment at 148 ℃;

(7) vacuum desolventizing: and (3) putting the dried bean slices into a first vacuum desolventizing device 16, performing vacuum desolventizing by using a first vacuum fan 161, controlling the vacuum degree to be 6Kpa, recovering the solvent, then putting the dried bean slices into a second vacuum desolventizing device 17 for desolventizing again, controlling the vacuum degree to be 6Kpa, recovering the solvent, and performing desolventizing twice to obtain the yellowish red low-beany flavor high-temperature defatted bean pulp.

Example 4

The embodiment provides a method for producing soybean meal by using a yellow-red low-beany-flavor high-temperature defatted soybean meal production device, which specifically comprises the following steps:

(1) screening impurities: the soybean raw material enters a specific gravity sieve 1 through a specific gravity sieve feeding port 11, impurities such as cobblestones, legume weeds and the like are sieved, and the sieved soybean raw material is discharged out of the specific gravity sieve 1 through a specific gravity sieve discharging port 12;

(2) selecting raw materials in color: the soybean raw material after the impurity screening treatment enters a color sorter 2 through a feed inlet 21 of the color sorter for color sorting treatment, mildewed grains are removed, and the soybean grains after the color sorting exit from the color sorter 2 through a discharge outlet 22 of the color sorter;

(3) and (3) drying: the bean granules after color sorting enter a drying tower 3 through a drying tower feeding hole 31, hot air heated by a heat exchanger 35 enters the drying tower 3 through a drying tower air inlet 34 through an air blower 36, the moisture of the soybean raw material is regulated to be 6%, the air after drying treatment is discharged from a drying tower air outlet 33 through an induced draft fan 35, and the dried bean granules are discharged out of the drying tower 3 through a drying tower discharging hole 32;

(4) and (3) breaking petals and inactivating enzyme: dried bean particles enter a broken bean mill 4 through a broken bean mill feeding port 41, the gas phase of the broken bean mill 4 is nitrogen, the dried bean particles are broken in the broken bean mill 4 to obtain bean skin and bean cotyledon, the bean cotyledon is discharged from the broken bean mill 4 through a broken bean mill discharging port 42, and then enters a cyclone separator 5 through a cyclone separator inlet 51;

the nitrogen enters the valve breaking mill 4, then enters the cyclone separator 5 through the inlet 51 of the cyclone separation device, is discharged from the air outlet 52 of the cyclone separation device through the induced draft fan 35, and sequentially enters the gas-liquid separator 61 for dehydration treatment, the dehydrated nitrogen recovers the nitrogen through the gas preparation device 62, the recovered nitrogen enters the gas storage tank 63 for storage and recycling, and the nitrogen enters the valve breaking mill 4 through the check valve 64 during use;

bean segments enter an ammonia water steam enzyme deactivation device 7 through a discharge hole 53 of a cyclone separation device, the temperature of the bean segments is quickly raised to 115 ℃ firstly in the ammonia water steam enzyme deactivation device 7, then the bean segments are maintained for 42min in an enzyme deactivation tank 8, condensed water generated in the steam process is discharged by a steam trap connected to the steam enzyme deactivation device 7, wherein ammonia water steam used in the ammonia water steam enzyme deactivation device 7 is prepared by food-grade ammonia water stored in an ammonia water tank 19 and ammonia water in a diluted ammonia water circulating tank 20 through an ammonia water steam generator 18, and then enters the ammonia water steam enzyme deactivation device 7 through an ammonia water steam inlet 73;

(5) flash evaporation and degassing: the bean cotyledon after enzyme deactivation enters a flash evaporation degassing tank 9 through a feed inlet 94 of a flash evaporation degassing device, the vacuum degree in the flash evaporation degassing tank 9 is controlled at 67Kpa by using a vacuum pump 92, the temperature is controlled at 72 ℃, the pH value of ammonia water steam is 9.8, condensed weak ammonia water collected by the vacuum pump 92 from a condenser 91 enters a weak ammonia water circulating tank 20, and the weak ammonia water enters the condenser 91 through a circulating pump 93 and is matched with the vacuum pump 92 to complete flash evaporation degassing treatment;

(6) rolling and leaching: the bean paste after flash evaporation degassing treatment enters a hydraulic roller press for rolling, the thickness of the bean flakes is controlled to be 0.3mm, the bean flakes enter a flat-turn type extractor through an extractor inlet 141, are extracted by using an organic solvent and then enter a dryer 15 for drying treatment at 147 ℃;

(7) vacuum desolventizing: and (3) putting the dried bean slices into a first vacuum desolventizing device 16, performing vacuum desolventizing by using a first vacuum fan 161, controlling the vacuum degree to be 7Kpa, recovering the solvent, then putting the dried bean slices into a second vacuum desolventizing device 17 for desolventizing again, controlling the vacuum degree to be 6Kpa, recovering the solvent, and performing desolventizing twice to obtain the yellowish red low-beany flavor high-temperature defatted bean pulp.

Example 5

The embodiment provides a method for producing soybean meal by using a yellow-red low-beany-flavor high-temperature defatted soybean meal production device, which specifically comprises the following steps:

(1) screening impurities: the soybean raw material enters a specific gravity sieve 1 through a specific gravity sieve feeding port 11, impurities such as cobblestones, legume weeds and the like are sieved, and the sieved soybean raw material is discharged out of the specific gravity sieve 1 through a specific gravity sieve discharging port 12;

(2) selecting raw materials in color: the soybean raw material after the impurity screening treatment enters a color sorter 2 through a feed inlet 21 of the color sorter for color sorting treatment, mildewed grains are removed, and the soybean grains after the color sorting exit from the color sorter 2 through a discharge outlet 22 of the color sorter;

(3) and (3) drying: the bean granules after color sorting enter a drying tower 3 through a drying tower feeding hole 31, hot air heated by a heat exchanger 35 enters the drying tower 3 through a drying tower air inlet 34 through an air blower 36, the moisture of the soybean raw material is regulated to be 6%, the air after drying treatment is discharged from a drying tower air outlet 33 through an induced draft fan 35, and the dried bean granules are discharged out of the drying tower 3 through a drying tower discharging hole 32;

(4) and (3) breaking petals and inactivating enzyme: dried bean particles enter a broken bean mill 4 through a broken bean mill feeding port 41, the gas phase of the broken bean mill 4 is nitrogen, the dried bean particles are broken in the broken bean mill 4 to obtain bean skin and bean cotyledon, the bean cotyledon is discharged from the broken bean mill 4 through a broken bean mill discharging port 42, and then enters a cyclone separator 5 through a cyclone separator inlet 51;

the nitrogen enters the valve breaking mill 4, then enters the cyclone separator 5 through the inlet 51 of the cyclone separation device, is discharged from the air outlet 52 of the cyclone separation device through the induced draft fan 35, and sequentially enters the gas-liquid separator 61 for dehydration treatment, the dehydrated nitrogen recovers the nitrogen through the gas preparation device 62, the recovered nitrogen enters the gas storage tank 63 for storage and recycling, and the nitrogen enters the valve breaking mill 4 through the check valve 64 during use;

bean segments enter an ammonia water steam enzyme deactivation device 7 through a discharge hole 53 of a cyclone separation device, the temperature of the bean segments is quickly raised to 100 ℃ firstly in the ammonia water steam enzyme deactivation device 7, then the bean segments are maintained for 35min in an enzyme deactivation tank 8, condensed water generated in the steam process is discharged by a steam trap connected to the steam enzyme deactivation device 7, wherein ammonia water steam used in the ammonia water steam enzyme deactivation device 7 is prepared by food-grade ammonia water stored in an ammonia water tank 19 and ammonia water in a diluted ammonia water circulating tank 20 through an ammonia water steam generator 18, and then enters the ammonia water steam enzyme deactivation device 7 through an ammonia water steam inlet 73;

(5) flash evaporation and degassing: the bean cotyledon after enzyme deactivation enters a flash evaporation degassing tank 9 through a feed inlet 94 of a flash evaporation degassing device, the vacuum degree in the flash evaporation degassing tank 9 is controlled at 70Kpa by using a vacuum pump 92, the temperature is controlled at 82 ℃, the pH value of ammonia water steam is 9.3, condensed weak ammonia water collected by the vacuum pump 92 from a condenser 91 enters a weak ammonia water circulating tank 20, and the weak ammonia water enters the condenser 91 through a circulating pump 93 and is matched with the vacuum pump 92 to complete flash evaporation degassing treatment;

(6) rolling and leaching: the bean paste after flash evaporation degassing treatment enters a hydraulic roller press for rolling, the thickness of the bean flakes is controlled to be 0.5mm, the bean flakes enter a flat-turn type extractor through an extractor inlet 141, are extracted by using an organic solvent and then enter a dryer 15 for drying treatment at the temperature of 144 ℃;

(7) vacuum desolventizing: and (3) putting the dried bean slices into a first vacuum desolventizing device 16, performing vacuum desolventizing by using a first vacuum fan 161, controlling the vacuum degree to be 7Kpa, recovering the solvent, then putting the dried bean slices into a second vacuum desolventizing device 17 for desolventizing again, controlling the vacuum degree to be 6Kpa, recovering the solvent, and performing desolventizing twice to obtain the yellowish red low-beany flavor high-temperature defatted bean pulp.

Evaluation of quality of yellow-red high-temperature soybean meal

The present invention also evaluates the urease activity, appearance color and beany flavor of the soybean meal products prepared in the above examples and comparative examples, and the test results are shown in the following table:

table 1 evaluation results of soybean meal quality in examples and comparative examples

	Urease activity	Apparent color	Evaluation of beany flavor
				Example 1	Negative of	Yellow-red color	Low beany flavor
Example 2	Negative of	Yellow-red color	Low beany flavor
				Example 3	Negative of	Yellow-red color	Low beany flavor
Example 4	Negative of	Yellow-red color	Low beany flavor
				Example 5	Negative of	Yellow-red color	Low beany flavor
Comparative example 1	Strong positive	Lower red and yellow values	Heavy beany flavor

From the data in the table, the problems of heavy beany flavor, low yellow-red color value and the like still exist in the yellow-red high-temperature soybean meal prepared by the conventional preparation method provided by the comparative example 1, and the high-temperature soybean meal prepared by the production device and the preparation method of the yellow-red low-beany flavor high-temperature defatted soybean meal provided by the embodiment of the invention has ideal appearance color, low beany flavor and negative urease, so that the production device and the preparation method provided by the invention can thoroughly solve the problems of serious beany flavor, low soybean meal quality and the like existing in the existing production method of soybean meal products, and have wide application prospects in the field of deep processing of soybeans.