阅读说明：本技术 一种用于低温速冻食品的升华干燥装置及方法 (Sublimation drying device and method for low-temperature quick-frozen food ) 是由 熊相人 陈碧峰 于 2021-08-24 设计创作，主要内容包括：本发明涉及低温干燥技术领域,尤其为一种用于低温速冻食品的升华干燥装置及方法,包括干燥箱、辅助抽真空装置、干燥质量检测装置、干燥效果加强装置、真空泵和支撑腿,所述干燥箱底端面固定连接有支撑腿,所述干燥箱的左端安装有呈上下设置的真空泵和辅助抽真空装置,所述干燥箱的内侧安装有干燥质量检测装置,所述干燥质量检测装置的顶端安装有干燥效果加强装置,所述干燥箱的顶端面安装有冷凝器,所述辅助抽真空装置包括辅助泵、底板、连接管、检测板、检测弹簧、第一开关、第二开关和连通孔,所述干燥箱的一侧安装有底板,本发明中,通过设置的干燥效果加强装置,可以在干燥速冻食物时,自动晃动食物,从而保证食物干燥的效果。(The invention relates to the technical field of low-temperature drying, in particular to a sublimation drying device and a sublimation drying method for low-temperature quick-frozen food, which comprises a drying box, an auxiliary vacuumizing device, a drying quality detection device, a drying effect enhancement device, a vacuum pump and supporting legs, wherein the bottom end surface of the drying box is fixedly connected with the supporting legs, the left end of the drying box is provided with the vacuum pump and the auxiliary vacuumizing device which are arranged up and down, the inner side of the drying box is provided with the drying quality detection device, the top end of the drying quality detection device is provided with the drying effect enhancement device, the top end surface of the drying box is provided with a condenser, the auxiliary vacuumizing device comprises an auxiliary pump, a bottom plate, a connecting pipe, a detection plate, a detection spring, a first switch, a second switch and a communication hole, one side of the drying box is provided with the bottom plate, the food can be automatically shaken when the quick-frozen food is dried, so that the effect of drying the food is ensured.)

1. The utility model provides a sublimation drying device for low temperature quick-freeze food, includes drying cabinet (1), supplementary evacuating device (2), dry quality detection device (3), drying effect reinforcing means (4), vacuum pump (5) and supporting leg (6), its characterized in that: the drying box comprises a drying box body (1), a drying effect reinforcing device (4), a condenser (7), a supporting leg (6) and a drying quality detection device (3), wherein the drying box body (1) is fixedly connected with the bottom end face of the drying box body, the vacuum pump (5) and the auxiliary vacuumizing device (2) are arranged at the left end of the drying box body (1) from top to bottom, the drying quality detection device (3) is arranged on the inner side of the drying box body (1), the drying effect reinforcing device (4) is arranged at the top end of the drying quality detection device (3), the condenser (7) is arranged on the top end face of the drying box body (1), the auxiliary vacuumizing device (2) comprises an auxiliary pump (201), a bottom plate (202), a connecting pipe (203), a detection plate (204), a detection spring (205), a first switch (206), a second switch (207) and a communication hole (213), the bottom plate (202) is arranged on one side of the drying box body (1), the auxiliary pump (201) is communicated with the connecting pipe (203) through the communication hole (13), the inner side of the connecting pipe (203) is connected with a detection plate (204) in a sliding mode, a detection spring (205) is installed on one side of the detection plate (204), a fixing rod (208) is installed on the other side of the detection spring (205), a first switch (206) is installed on the left side of the detection plate (204), and a second switch (207) is installed on the right side of the detection plate (204).

2. The sublimation drying device for the low-temperature quick-frozen food according to claim 1, characterized in that: connecting rod (209) are installed to one side of first switch (206), solid fixed ring (210) is installed in the outside of connecting rod (209), and the outside and connecting pipe (203) fixed connection of solid fixed ring (210), support column (211) are installed to the rear side of second switch (207), and support column (211) and dead lever (208) fixed connection.

3. The sublimation drying device for the low-temperature quick-frozen food according to claim 2, characterized in that: the outside of support column (211) is installed spacing ring (212), the right side and dead lever (208) fixed connection of spacing ring (212).

4. The sublimation drying device for the low-temperature quick-frozen food according to claim 1, characterized in that: the drying quality detection device (3) comprises a placing plate (301), a sleeve (302), a loop bar (303), a reset spring (304), a detection switch (305), a mounting plate (306), a measuring bar (307), a fixed cylinder (308) and a fixing screw (309), wherein the sleeve (302) is mounted on the inner side of the bottom end of the drying box (1), the loop bar (303) is sleeved at one end of the sleeve (302), the reset spring (304) is mounted on the outer side of the loop bar (303), the placing plate (301) is mounted at the other end of the loop bar (303), the detection switch (305) is arranged on the upper side of the placing plate (301), the mounting plate (306) is mounted on the other side of the detection switch (305), a weighing rod (307) is mounted at the other end of the mounting plate (306), the weighing rod (307) penetrates through the placing plate (301) and the drying box (1), the fixed cylinder (308) is connected to the outer side of the weighing rod (307) in a sliding manner, the outer side of the fixed cylinder (308) is fixedly connected with the drying box (1), and the outer side of the fixed cylinder (308) is spirally connected with a fixing screw (309).

5. The sublimation drying device for the low-temperature quick-frozen food according to claim 1, characterized in that: the drying effect reinforcing device (4) comprises a loading plate (401), a cross frame (402), a sliding frame (403), a transmission rod (404), a motor (405), an eccentric wheel (406) and a sliding frame (407), a sliding frame (403) is fixedly connected with the top end surface of the drying quality detection device (3), a transverse frame (402) is connected with the inner side of the sliding frame (403) in a sliding way, one side of the transverse frame (402) is fixedly connected with a loading plate (401), the left side of the transverse frame (402) positioned on the left side is fixedly connected with a transmission rod (404), one side of the sliding frame (403) positioned on the left side is fixedly connected with a motor (405) through a fixed block, the tail end of a main shaft of the motor (405) is fixedly connected with an eccentric wheel (406), the outer side of the eccentric wheel (406) is connected with a sliding frame (407) in a sliding mode, and the sliding frame (407) is fixedly connected with the transmission rod (404).

6. The sublimation drying device for the low-temperature quick-frozen food according to claim 5, wherein: the number of the loading plates (401) is 3-5, and the loading plates (401) are distributed on the inner side of the sliding frame (403) at equal intervals.

7. The sublimation drying method for the low-temperature quick-frozen food according to claim 1, characterized in that: the method comprises the following steps:

the method comprises the following steps: food putting: firstly, uniformly placing quick-frozen foods on the inner side of a drying effect enhancing device (4), then uniformly spreading the quick-frozen foods, wherein the placing height of the quick-frozen foods on the drying effect enhancing device (4) is 5cm, and then recording scales corresponding to the weight of the foods at the moment through a drying quality detection device (3);

step two: setting a drying effect: then, adjusting a drying quality detection device (3) according to the due weight of the dried food, and then closing the drying box (1);

step three: and (3) drying the food: then starting a vacuum pump (5) to carry out vacuum-pumping drying treatment, ensuring that the air pressure vacuum degree of the inner side of the drying box (1) is 50-150pa and the temperature of quick-frozen food is minus 20 ℃ to minus 30 ℃ during vacuum pumping, then utilizing a condenser (7) to remove water vapor generated inside, and simultaneously starting a drying effect enhancing device (4) to carry out auxiliary enhanced drying;

step four: auxiliary vacuumizing treatment: when the air pressure in drying cabinet (1) is greater than 150pa, can trigger the switch in the supplementary evacuating device (2) automatically, thereby start supplementary evacuating device (2), thereby it reduces the atmospheric pressure in drying cabinet (1) to last, make the inboard atmospheric pressure of drying cabinet (1) be less than 150pa, thereby continue to keep the inboard drying effect of drying cabinet (1), when the inboard switch of dry quality detection device (3) triggers, the drying of inboard quick-frozen food has been accomplished promptly.

Technical Field

The invention relates to the technical field of low-temperature drying, in particular to a sublimation drying device and method for low-temperature quick-frozen food.

Background

The low-temperature drying method is various, including adsorption drying, vacuum drying, cooling drying, heating drying, vacuum spray drying and the like, and is mainly characterized in that a method for drying an object at a lower temperature needs a low-temperature drying method for removing water from a medicine with poor thermal stability, wherein the vacuum drying, also called resolution drying, is a method for placing a material under a vacuum negative pressure condition to reduce the boiling point of water, the boiling point of water is 100 ℃ under one atmosphere, the boiling point of water can be reduced to 80 ℃ under the vacuum negative pressure condition, the water starts to evaporate at 40 ℃, most low-temperature vacuum drying devices in the market at present are simple in design, auxiliary vacuumizing structures are not arranged, and therefore the vacuum degree of the devices needs to be continuously started or the vacuum degree in the drying devices is insufficient, the drying effect can not be ensured well, so that the sublimation drying device and the sublimation drying method for the low-temperature quick-frozen food are provided for solving the problems.

Disclosure of Invention

The invention aims to provide a sublimation drying device and a sublimation drying method for low-temperature quick-frozen food, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a sublimation drying device for low-temperature quick-frozen food comprises a drying box, an auxiliary vacuumizing device, a drying quality detection device, a drying effect reinforcing device, a vacuum pump and supporting legs, wherein the supporting legs are fixedly connected to the bottom end face of the drying box, the vacuum pump and the auxiliary vacuumizing device which are vertically arranged are installed at the left end of the drying box, the drying quality detection device is installed on the inner side of the drying box, the drying effect reinforcing device is installed at the top end of the drying quality detection device, a condenser is installed on the top end face of the drying box, the auxiliary vacuumizing device comprises an auxiliary pump, a bottom plate, a connecting pipe, a detection plate, a detection spring, a first switch, a second switch and a communication hole, the bottom plate is installed on one side of the drying box, the auxiliary pump is installed at the top end of the bottom plate, and one end of the auxiliary pump is communicated with the connecting pipe through the communication hole, the inner side of the connecting pipe is connected with a detection plate in a sliding mode, a detection spring is installed on one side of the detection plate, a fixing rod is installed on the other side of the detection spring, a first switch is installed on the left side of the detection plate, and a second switch is installed on the right side of the detection plate.

Preferably, the connecting rod is installed to one side of first switch, solid fixed ring is installed in the outside of connecting rod, and solid fixed ring's the outside and connecting pipe fixed connection, the support column is installed to the rear side of second switch, and support column and dead lever fixed connection.

Preferably, a limiting ring is installed on the outer side of the supporting column, and the right side of the limiting ring is fixedly connected with the fixing rod.

Preferably, dry quality detection device is including placing board, sleeve, loop bar, reset spring, detection switch, mounting panel, weighing apparatus measuring staff, solid fixed cylinder and set screw, the sleeve is installed to the bottom inboard of drying cabinet, the loop bar has been cup jointed to telescopic one end, reset spring is installed in the outside of loop bar, the board is placed to the other end of loop bar is installed, the upside of placing the board is equipped with detection switch, the mounting panel is installed to detection switch's opposite side, the weighing apparatus measuring staff is installed to the other end of mounting panel, running through of weighing apparatus measuring staff is in placing board and drying cabinet, the outside sliding connection of weighing apparatus measuring staff has solid fixed cylinder, gu fixed cylinder's the outside and drying cabinet fixed connection, gu fixed cylinder's outside screwed connection has set screw.

Preferably, the device is strengthened to dry effect is including carrying thing board, crossbearer, carriage, transfer line, motor, eccentric wheel and sliding frame, dry quality detection device top end face fixedly connected with carriage, the inboard sliding connection of carriage has the crossbearer, and one side fixedly connected with of crossbearer carries the thing board, is located leftwards the left side fixedly connected with transfer line of crossbearer is located leftwards fixed block fixedly connected with motor is passed through to one side of carriage, the terminal fixedly connected with eccentric wheel of main shaft of motor, the outside sliding connection of eccentric wheel has the sliding frame, and sliding frame and transfer line fixed connection.

Preferably, the number of the carrying plates is 3-5, and the carrying plates are distributed on the inner side of the sliding frame at equal intervals.

A sublimation drying method for low-temperature quick-frozen food comprises the following steps:

the method comprises the following steps: food putting: firstly, uniformly placing quick-frozen foods on the inner side of a drying effect enhancing device, then uniformly spreading the quick-frozen foods, wherein the placing height of the quick-frozen foods in the drying effect enhancing device is 5cm, and then recording scales corresponding to the weight of the foods at the moment through a drying quality detection device;

step two: setting a drying effect: then, adjusting a drying quality detection device according to the due weight of the dried food, and then closing the drying oven;

step three: and (3) drying the food: then starting a vacuum pump to carry out vacuum-pumping drying treatment, ensuring that the air pressure vacuum degree of the inner side of the drying box is 50-150pa and the temperature of the quick-frozen food is minus 20 ℃ to minus 30 ℃ during vacuum pumping, then utilizing a condenser to remove water vapor generated inside, and simultaneously starting a drying effect enhancing device to carry out auxiliary enhanced drying;

step four: auxiliary vacuumizing treatment: when the air pressure in the drying oven is greater than 150pa, the switch in the auxiliary vacuumizing device can be automatically triggered, so that the auxiliary vacuumizing device is started, the air pressure in the drying oven is continuously reduced, the air pressure in the inner side of the drying oven is lower than 150pa, the drying effect in the inner side of the drying oven is continuously kept, and when the switch in the inner side of the drying quality detection device is triggered, the drying of the quick-frozen food in the inner side is finished.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the auxiliary vacuumizing device is arranged, so that the air pressure inside the drying oven can be kept better, the continuous drying effect in the drying oven is ensured, and the drying quality of quick-frozen food is ensured;

2. according to the invention, through the arranged drying quality detection device, when the quick-frozen food is dried and the food reaches the drying specification, the drying can be automatically stopped, so that the drying effect is ensured, and the energy is saved;

3. according to the invention, the arranged drying effect enhancing device can automatically shake the food when the quick-frozen food is dried, so that the drying effect of the food is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of an auxiliary vacuum-pumping device according to the present invention;

FIG. 3 is a schematic structural diagram of a drying quality detecting apparatus according to the present invention;

FIG. 4 is a schematic structural diagram of a drying effect enhancing apparatus according to the present invention;

fig. 5 is a schematic view of the motor mounting structure of the present invention.

In the figure: 1-drying box, 2-auxiliary vacuum device, 201-auxiliary pump, 202-bottom plate, 203-connecting pipe, 204-detecting plate, 205-detecting spring, 206-first switch, 207-second switch, 208-fixing rod, 209-connecting rod, 210-fixing ring, 211-supporting column, 212-limiting ring, 213-communicating hole, 3-drying quality detecting device, 301-placing plate, 302-sleeve, 303-sleeve rod, 304-resetting spring, 305-detecting switch, 306-mounting plate, 307-weighing rod, 308-fixing cylinder, 309-fixing screw, 4-drying effect enhancing device, 401-loading plate, 402-cross frame, 403-sliding frame, 404-driving rod, 405-motor, 406-eccentric wheel, 407-sliding frame, 5-vacuum pump, 6-supporting leg, 7-condenser.

Detailed Description

Example 1: referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a sublimation drying device for low temperature quick-freeze food, includes drying cabinet 1, supplementary evacuating device 2, dry quality detection device 3, drying effect reinforcing means 4, vacuum pump 5 and supporting leg 6, its characterized in that: the bottom end face of the drying box 1 is fixedly connected with a supporting leg 6, the left end of the drying box 1 is provided with a vacuum pump 5 and an auxiliary vacuum-pumping device 2 which are arranged up and down, the inner side of the drying box 1 is provided with a drying quality detection device 3, the top end of the drying quality detection device 3 is provided with a drying effect enhancement device 4, the top end face of the drying box 1 is provided with a condenser 7, the auxiliary vacuum-pumping device 2 comprises an auxiliary pump 201, a bottom plate 202, a connecting pipe 203, a detection plate 204, a detection spring 205, a first switch 206, a second switch 207 and a communication hole 213, one side of the drying box 1 is provided with the bottom plate 202, the top end of the bottom plate 202 is provided with the auxiliary pump 201, one end of the auxiliary pump 201 is communicated with the connecting pipe 203 through the communication hole 13, the inner side of the connecting pipe 203 is slidably connected with the detection plate 204, one side of the detection spring 205 is arranged on one side of the connection pipe 204, and the other side of the detection spring 205 is provided with a fixing rod 208, a first switch 206 is mounted to the left side of the sensing board 204 and a second switch 207 is mounted to the right side of the sensing board 204.

The drying quality detection device 3 comprises a placing plate 301, a sleeve 302, a loop bar 303, a reset spring 304, a detection switch 305, a mounting plate 306, a weighing rod 307, a fixed cylinder 308 and a fixing screw 309, wherein the sleeve 302 is installed on the inner side of the bottom end of the drying box 1, the loop bar 303 is sleeved at one end of the sleeve 302, the reset spring 304 is installed on the outer side of the loop bar 303, the placing plate 301 is installed at the other end of the loop bar 303, the detection switch 305 is arranged on the upper side of the placing plate 301, the other side of the detection switch 305 is provided with a mounting plate 306, the other end of the mounting plate 306 is provided with a weighing rod 307, the weighing rod 307 penetrates through the placing plate 301 and the drying box 1, the outer side of the weighing rod 307 is connected with a fixed cylinder 308 in a sliding manner, the outer side of the fixed cylinder 308 is fixedly connected with the drying box 1, the outer side of the fixed cylinder 308 is spirally connected with a fixing screw 309, the drying can be automatically stopped when quick-frozen food is dried and the food reaches a drying specification, so that the drying effect is ensured and energy is saved, the drying effect enhancing device 4 comprises a loading plate 401, a cross frame 402, a sliding frame 403, a transmission rod 404, a motor 405, an eccentric wheel 406 and a sliding frame 407, the top end surface of the drying quality detection device 3 is fixedly connected with the sliding frame 403, the inner side of the sliding frame 403 is connected with the cross frame 402 in a sliding manner, one side of the cross frame 402 is fixedly connected with the loading plate 401, the transmission rod 404 is fixedly connected with the left side of the cross frame 402, one side that is located left carriage 403 is through fixed block fixedly connected with motor 405, the terminal fixedly connected with eccentric wheel 406 of main shaft of motor 405, the outside sliding connection of eccentric wheel 406 has sliding frame 407, and sliding frame 407 and transfer line 404 fixed connection, the quantity of carrying thing board 401 is 3, and carries thing board 401 and be equidistant distribution in the inboard of carriage 403, and this kind of setting can be when dry quick-freeze food, rocks food automatically to guarantee the dry effect of food.

The working process is as follows: the device is connected with an external power supply when in use, then food is uniformly placed on the object carrying plate 401, then the heights of the mounting plate 306 and the detection switch 305 are adjusted according to the descending height of the placing plate 301, then the fixing is carried out through the fixing cylinder 308 and the fixing screw 309, then the device is started, the vacuum pump 5 is used for vacuumizing and drying, the condenser 7 can condense sublimed water vapor, when the drying is carried out, the motor 405 is started, the driving rod 404 is driven to swing left and right through the eccentric wheel 406 and the sliding frame 407, and then the object carrying plate 401 is driven to swing left and right through the cross frame 402, so that the quick-frozen food is rapidly and comprehensively sublimated and dried, when the air pressure in the drying box 1 is low, the elastic force of the detection spring 205 is greater than the pressure of the external atmospheric pressure, the detection spring 205 pushes the detection plate 204 to the left side to extrude the first switch 206, and then the auxiliary pump 201 starts to work, thereby ensuring the vacuum effect inside the drying cabinet 1, and then under the action of the atmospheric pressure, the detection plate 204 is made to press the second switch 207, thereby stopping the operation of the auxiliary pump 201, thereby continuously maintaining the vacuum effect inside the drying cabinet 1.

A sublimation drying method for low-temperature quick-frozen food comprises the following steps:

the method comprises the following steps: food putting: firstly, uniformly placing quick-frozen foods on the inner side of a drying effect enhancing device 4, then uniformly spreading the quick-frozen foods, wherein the placing height of the quick-frozen foods on the drying effect enhancing device 4 is 5cm, and then recording scales corresponding to the weight of the foods at the moment through a drying quality detection device 3;

step two: setting a drying effect: then, adjusting a drying quality detection device 3 according to the due weight of the dried food, and then closing the drying oven 1;

step three: and (3) drying the food: then starting a vacuum pump 5 to carry out vacuum-pumping drying treatment, ensuring that the air pressure vacuum degree of the inner side of the drying box 1 is 50-150pa and the temperature of the quick-frozen food is minus 20 ℃ to minus 30 ℃ during vacuum pumping, then utilizing a condenser 7 to remove water vapor generated inside, and simultaneously starting a drying effect enhancing device 4 to carry out auxiliary enhanced drying;

step four: auxiliary vacuumizing treatment: when the air pressure is greater than 150pa in drying cabinet 1, can trigger the switch in the supplementary evacuating device 2 automatically to start supplementary evacuating device 2, thereby continuously reduce the air pressure in drying cabinet 1, make the inboard air pressure of drying cabinet 1 be less than 150pa, thereby continue to keep the inboard drying effect of drying cabinet 1, when the inboard switch of dry quality detection device 3 triggers, accomplished the drying of inboard quick-frozen food promptly.

Example 2: referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a sublimation drying device for low temperature quick-freeze food, includes drying cabinet 1, supplementary evacuating device 2, dry quality detection device 3, drying effect reinforcing means 4, vacuum pump 5 and supporting leg 6, its characterized in that: the bottom end face of the drying box 1 is fixedly connected with a supporting leg 6, the left end of the drying box 1 is provided with a vacuum pump 5 and an auxiliary vacuum-pumping device 2 which are arranged up and down, the inner side of the drying box 1 is provided with a drying quality detection device 3, the top end of the drying quality detection device 3 is provided with a drying effect enhancement device 4, the top end face of the drying box 1 is provided with a condenser 7, the auxiliary vacuum-pumping device 2 comprises an auxiliary pump 201, a bottom plate 202, a connecting pipe 203, a detection plate 204, a detection spring 205, a first switch 206, a second switch 207 and a communication hole 213, one side of the drying box 1 is provided with the bottom plate 202, the top end of the bottom plate 202 is provided with the auxiliary pump 201, one end of the auxiliary pump 201 is communicated with the connecting pipe 203 through the communication hole 13, the inner side of the connecting pipe 203 is slidably connected with the detection plate 204, one side of the detection spring 205 is arranged on one side of the connection pipe 204, and the other side of the detection spring 205 is provided with a fixing rod 208, a first switch 206 is mounted to the left side of the sensing board 204 and a second switch 207 is mounted to the right side of the sensing board 204.

The drying quality detection device 3 comprises a placing plate 301, a sleeve 302, a loop bar 303, a reset spring 304, a detection switch 305, a mounting plate 306, a weighing rod 307, a fixed cylinder 308 and a fixing screw 309, wherein the sleeve 302 is installed on the inner side of the bottom end of the drying box 1, the loop bar 303 is sleeved at one end of the sleeve 302, the reset spring 304 is installed on the outer side of the loop bar 303, the placing plate 301 is installed at the other end of the loop bar 303, the detection switch 305 is arranged on the upper side of the placing plate 301, the other side of the detection switch 305 is provided with a mounting plate 306, the other end of the mounting plate 306 is provided with a weighing rod 307, the weighing rod 307 penetrates through the placing plate 301 and the drying box 1, the outer side of the weighing rod 307 is connected with a fixed cylinder 308 in a sliding manner, the outer side of the fixed cylinder 308 is fixedly connected with the drying box 1, the outer side of the fixed cylinder 308 is spirally connected with a fixing screw 309, the drying can be automatically stopped when quick-frozen food is dried and the food reaches a drying specification, so that the drying effect is ensured and energy is saved, the drying effect enhancing device 4 comprises a loading plate 401, a cross frame 402, a sliding frame 403, a transmission rod 404, a motor 405, an eccentric wheel 406 and a sliding frame 407, the top end surface of the drying quality detection device 3 is fixedly connected with the sliding frame 403, the inner side of the sliding frame 403 is connected with the cross frame 402 in a sliding manner, one side of the cross frame 402 is fixedly connected with the loading plate 401, the transmission rod 404 is fixedly connected with the left side of the cross frame 402, one side that is located left carriage 403 is through fixed block fixedly connected with motor 405, the terminal fixedly connected with eccentric wheel 406 of main shaft of motor 405, the outside sliding connection of eccentric wheel 406 has sliding frame 407, and sliding frame 407 and transfer line 404 fixed connection, the quantity of carrying thing board 401 is 3, and carries thing board 401 and be equidistant distribution in the inboard of carriage 403, and this kind of setting can be when dry quick-freeze food, rocks food automatically to guarantee the dry effect of food.

The working process is as follows: the device is connected with an external power supply when in use, then food is uniformly placed on the object carrying plate 401, then the heights of the mounting plate 306 and the detection switch 305 are adjusted according to the descending height of the placing plate 301, then the fixing is carried out through the fixing cylinder 308 and the fixing screw 309, then the device is started, the vacuum pump 5 is used for vacuumizing and drying, the condenser 7 can condense sublimed water vapor, when the drying is carried out, the motor 405 is started, the driving rod 404 is driven to swing left and right through the eccentric wheel 406 and the sliding frame 407, and then the object carrying plate 401 is driven to swing left and right through the cross frame 402, so that the quick-frozen food is rapidly and comprehensively sublimated and dried, when the air pressure in the drying box 1 is low, the elastic force of the detection spring 205 is greater than the pressure of the external atmospheric pressure, the detection spring 205 pushes the detection plate 204 to the left side to extrude the first switch 206, and then the auxiliary pump 201 starts to work, thereby ensuring the vacuum effect inside the drying cabinet 1, and then under the action of the atmospheric pressure, the detection plate 204 is made to press the second switch 207, thereby stopping the operation of the auxiliary pump 201, thereby continuously maintaining the vacuum effect inside the drying cabinet 1.

A sublimation drying method for low-temperature quick-frozen food comprises the following steps:

the method comprises the following steps: food putting: firstly, uniformly placing quick-frozen foods on the inner side of a drying effect enhancing device 4, then uniformly spreading the quick-frozen foods, wherein the placing height of the quick-frozen foods on the drying effect enhancing device 4 is 5cm, and then recording scales corresponding to the weight of the foods at the moment through a drying quality detection device 3;

step two: setting a drying effect: then, adjusting a drying quality detection device 3 according to the due weight of the dried food, and then closing the drying oven 1;

step three: and (3) drying the food: then starting a vacuum pump 5 to carry out vacuum-pumping drying treatment, ensuring that the air pressure vacuum degree of the inner side of the drying box 1 is 50-150pa and the temperature of the quick-frozen food is minus 20 ℃ to minus 30 ℃ during vacuum pumping, then utilizing a condenser 7 to remove water vapor generated inside, and simultaneously starting a drying effect enhancing device 4 to carry out auxiliary enhanced drying;

step four: auxiliary vacuumizing treatment: when the air pressure is greater than 150pa in drying cabinet 1, can trigger the switch in the supplementary evacuating device 2 automatically to start supplementary evacuating device 2, thereby continuously reduce the air pressure in drying cabinet 1, make the inboard air pressure of drying cabinet 1 be less than 150pa, thereby continue to keep the inboard drying effect of drying cabinet 1, when the inboard switch of dry quality detection device 3 triggers, accomplished the drying of inboard quick-frozen food promptly.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.