Sugarcane juice heating, bacteriostasis and floating impurity removing system and technology
阅读说明：本技术 蔗汁加热抑菌及去除浮杂系统及工艺 (Sugarcane juice heating, bacteriostasis and floating impurity removing system and technology ) 是由 陈家权 陆克孙 于 2019-11-26 设计创作，主要内容包括：本发明提供了一种蔗汁加热抑菌及去除浮杂系统及工艺,本系统包括加热器、沉降器、残汁桶和除杂清汁泵,其通过设置加热器对蔗汁进行加热抑菌,并使蔗汁中的杂质聚结成比重较大的絮状杂质,然后再将蔗汁送入专门设计的沉降器中,沉降器通过设置多个组合结构来对蔗汁进行纯物理式分离澄清并去除浮杂,由此得到没有异味的蔗汁清汁。本系统完全采用纯物理的方式来对蔗汁进行抑菌和除杂处理,不添加任何化学药物,因此不破坏蔗汁中的有益成分,也不影响蔗汁的口感和质量,而且能够去除甘蔗初压汁中50-70%的不溶杂质,经过本系统及工艺的处理,可有效延长其下级的蔗汁除细末系统及后级的膜处理系统的清洗周期,保证后续处理系统的正常运行。(The invention provides a cane juice heating, bacteriostasis and floating impurity removal system and a process, the system comprises a heater, a settler, a residual juice barrel and an impurity removal and juice cleaning pump, wherein the heater is arranged to heat and bacteriostasis cane juice, and enable impurities in the cane juice to be agglomerated into flocculent impurities with larger specific gravity, then the cane juice is sent into the settler which is specially designed, and the settler is provided with a plurality of combined structures to carry out pure physical separation and clarification on the cane juice and remove floating impurities, thereby obtaining the cane juice clear juice without peculiar smell. The system completely adopts a pure physical mode to carry out bacteriostasis and impurity removal treatment on the sugarcane juice, and no chemical medicine is added, so that the beneficial components in the sugarcane juice are not damaged, the taste and the quality of the sugarcane juice are not influenced, 50-70% of insoluble impurities in the sugarcane primary-pressure juice can be removed, and through the treatment of the system and the process, the cleaning period of a lower-level sugarcane juice fine powder removal system and a later-level membrane treatment system can be effectively prolonged, and the normal operation of a subsequent treatment system is ensured.)
1. The utility model provides a cane juice heating is antibacterial and gets rid of system of floating miscellaneous, characterized by: comprises a heater, a settler, a residual juice barrel and an impurity-removing clear juice pump; the heater is provided with a plurality of stages of tubular heat exchangers, the heat exchangers are sequentially connected in series through connecting pipelines, an inlet of the heat exchanger at the front end is connected with a cane juice outlet pipeline of a higher-level processing system, an outlet of the heat exchanger at the tail end is connected with a raw material inlet of the settler through a pipeline, a scum overflow port on the outer side of the circumference of the upper part of the settler is connected to an inlet of a residual juice barrel through a pipeline, a bottom discharge valve at the bottom of the settler is also connected to an inlet of the residual juice barrel through a pipeline, a clear juice outlet on one side of the lower part of the settler is connected to an inlet of an impurity removal clear juice pump through;
the settler is provided with an outer barrel, the barrel body of the outer barrel is a longitudinal large barrel, the top surface of the barrel body of the outer barrel is open, the position of the outer side of the barrel body of the outer barrel, which is close to the top surface, is respectively connected with a raw material inlet and a scum overflow port, wherein the raw material inlet is horizontally arranged and tangentially connected with the outer circumference of the barrel body of the outer barrel, and the scum overflow port is arranged at the side of the raw material inlet; the bottom surface of the outer cylinder body is provided with a conical sealing bottom, a plurality of vertically arranged spoilers are longitudinally and uniformly distributed on the inner wall of the conical surface of the conical sealing bottom, and the lowest end of the conical sealing bottom is connected with a bottom discharge valve; the inner part of the outer barrel body is provided with a middle spacer sleeve through a bracket, the middle spacer sleeve is a longitudinal cylinder which has a smaller caliber than that of the outer barrel body and is communicated up and down, and the middle spacer sleeve is level with the upper and lower heights of the outer barrel body and the axial lead of the middle spacer sleeve is coincident; a central overflow cylinder is erected at the position close to the center inside the middle spacer sleeve through a bracket, the cylinder body of the central overflow cylinder is a longitudinal small cylinder with the diameter smaller than that of the opening of the middle spacer sleeve, the top surface of the cylinder body of the central overflow cylinder is open, clear juice overflow ports which are uniformly distributed along the circumference of the cylinder wall are arranged at the position close to the upper part of the cylinder body of the central overflow cylinder, and the lower part of the cylinder body of the central overflow cylinder is connected with a liquid outlet pipeline; the liquid outlet pipeline extends downwards in the middle spacer sleeve and penetrates out of the middle spacer sleeve, and then penetrates out of one side of the conical back cover of the outer barrel body in an inclined mode, and therefore a clear juice outlet is formed.
2. The cane juice heating, bacteriostasis and floating impurity removal system as claimed in claim 1, wherein a residual juice pump is further arranged outside the residual juice barrel, an outlet of the residual juice barrel is connected with an inlet of the residual juice pump through a pipeline, and an outlet of the residual juice pump is connected with corresponding equipment of a sugar refinery through a pipeline.
3. The cane juice heating, bacteriostasis and impurity removing system as claimed in claim 1, which is characterized in that: the scum overflow port of the settler is a bracket welded outside the opening on the side surface of the outer barrel body, the bracket is communicated with the inside of the outer barrel body, the top surface of the bracket is open, and the bottom surface of the bracket is connected with a pipe joint extending downwards to serve as a scum outlet.
4. The cane juice heating, bacteriostasis and impurity removing system as claimed in claim 1, which is characterized in that: the lower part of the outer barrel of the settler is also provided with a plurality of support legs, and the outer barrel is elevated and supported by the support legs.
5. A cane juice heating, bacteriostasis and impurity removal process based on the cane juice heating, bacteriostasis and impurity removal system of claim 1, which is characterized by comprising the following steps:
(1) heating for bacteriostasis and generating flocculent impurities
Conveying cane juice conveyed from a superior treatment system into a heater, heating the cane juice to 60-80 ℃ step by step through 2-3-stage tubular heat exchange of the heater, wherein the heating time is 8-10 minutes so as to fully kill or inhibit most microorganisms in the cane juice and solidify part of protein in the cane juice, and the solidified protein is agglomerated with colloid, bagasse fragments and sludge powder in the cane juice into flocculent impurities with larger specific gravity;
(2) pure physical separation clarification and floating impurity removal
a. The cane juice heated in the step (1) is tangentially sprayed into the interior of the settler from a raw material inlet of the settler, so that the cane juice forms a rotating liquid level in an interlayer between the outer cylinder and the middle spacer sleeve, flocculent impurities in the cane juice are further agglomerated and enlarged by centrifugal force generated by the rotating liquid level to form flocculent impurities which are easier to precipitate, the flocculent impurities are precipitated to the bottom along the inner wall of the cylinder body of the outer cylinder under the combined action of the centrifugal force and gravity, precipitates are formed under the blocking action of a flow baffle on the conical bottom seal of the outer cylinder, and the precipitates are discharged into an external residual juice barrel by controlling a bottom discharge valve at the lower end of the conical bottom seal of the outer cylinder;
b. the floating foam of impurities mixed with gas generated by the rotating liquid level in the outer cylinder body of the settler floats upwards to the top along the inner wall of the cylinder body of the outer cylinder body, enters the scum overflow port under the action of centrifugal force and is discharged to an external residual juice barrel from the scum overflow port;
c. the cane juice in the settler slowly rises in the interlayer between the middle spacer sleeve and the central overflow cylinder, then flows into the central overflow cylinder from the clear juice overflow port at the upper part of the central overflow cylinder, is discharged outwards from the clear juice outlet through the liquid outlet pipeline, and is pumped to a next-stage treatment system by the impurity removal clear juice pump;
d. the time of the cane juice staying in the settler is 10-20 minutes.
6. The cane juice heating, bacteriostasis and impurity floating removal process as claimed in claim 5, which is characterized in that: in the step (2), the impurities collected in the residual juice barrel are pumped back to the sugar refinery for recycling through the residual juice pump.
Technical Field
The invention relates to the technical field of sugarcane juice deep processing, in particular to a sugarcane juice heating, bacteriostasis and floating impurity removing system and process.
Background
The sugarcane contains abundant sugar and moisture, and also contains nutrition such as octacosanol, amino acid, polyphenol, vitamin B6 and the like which are very beneficial to human metabolism, and beneficial trace elements such as selenium, zinc, calcium, iron and the like, wherein the octacosanol is a universally recognized anti-fatigue functional substance and is very beneficial to human bodies, but the octacosanol mainly exists in sugarcane wax attached to sugarcane peels, so that people cannot eat the octacosanol which is precious in the sugarcane when eating the sugarcane daily or drinking sugarcane juice squeezed by a conventional juicer. The sugarcane is mainly used for industrial sugar production besides being eaten as fruits, when the industrial sugar production is carried out, the sugarcane and sugarcane peel are firstly torn and broken into a filamentous sugarcane material by a tearing machine, so that fibrous tissues of the sugarcane are torn, then the filamentous sugarcane material is fully squeezed by a multi-stage squeezer in sequence, and at the moment, octacosanol which is precious in the sugarcane peel can be separated out into sugarcane primary-pressure juice together with cane wax, so that a production line for extracting and preparing pure sugarcane plant cell water beverage by utilizing the sugarcane primary-pressure juice of a sugar refinery is specially designed, and the functional beverage capable of keeping most beneficial components including octacosanol in the sugarcane is produced.
A designed production line adopts a three-stage membrane filtration system to separate and filter cane juice, a cane juice pre-membrane-filtration pretreatment system is further arranged at the front end of the three-stage membrane filtration system and comprises a four-stage treatment system, the cane juice heating, bacteriostasis and floating impurity removal system is a second-stage treatment system, the cane juice primary-pressure juice conveyed from the first-stage treatment system is fresh cane juice which contains cane sugar, reducing sugar, polysaccharides, protein, various amino acids and pectin, organic acid, pectin and other colloids, cane fat, cane wax, various pigments and other substances, bacteria are easily bred to cause deterioration of the cane juice, the cane juice generates peculiar smell which can not be eliminated, and the quality of subsequent products is seriously influenced; in addition, the cane juice also contains a large amount of impurities such as bagasse fragments, mud powder and the like, which can cause frequent blockage of subsequent membrane treatment equipment and can not normally operate at all. Therefore, the treatment system of the present grade is arranged to carry out bacteriostasis and floating impurity removal treatment on the cane juice. In order to not destroy beneficial components in cane juice and obtain cane juice clear liquid by adding chemical agents into cane juice according to an industrial sugar making process, the cane juice needs to be clarified in a pure physical mode, so that the treatment system of the level is specially provided with a special settler for removing floating impurities.
Disclosure of Invention
The invention aims to provide a cane juice heating, bacteriostasis and floating impurity removing system and a process, which are used as a second-stage treatment system of a pretreatment system before cane juice passes through a membrane and are used for heating, bacteriostasis and removal of impurities such as bagasse, silt and the like suspended in cane juice.
The specific technical scheme of the invention is as follows:
a cane juice heating, bacteriostasis and floating impurity removing system comprises a heater, a settler, a residual juice barrel and an impurity removing and clear juice pump; the heater is equipped with multistage shell and tube heat exchanger, the heat exchangers at different levels are established ties in proper order through the connecting line, the cane juice outlet pipeline of higher level processing system of entry linkage of front end heat exchanger, the raw materials entry of pipe connection settler is passed through in the export of end heat exchanger, the dross overflow mouth in the settler upper portion circumference outside passes through the entry of pipe connection to the juice residue bucket, the row bottom valve of settler bottom also passes through the entry of pipe connection to the juice residue bucket, the clear juice export of settler lower part one side passes through the entry of pipe connection edulcoration clear juice pump, the export pipe connection of edulcoration clear juice pump is to subordinate's processing system. Furthermore, the outside of the residual juice barrel is also provided with a residual juice pump, the outlet of the residual juice barrel is connected with the inlet of the residual juice pump through a pipeline, and the outlet of the residual juice pump is connected with corresponding equipment of a sugar refinery through a pipeline.
The settler is provided with an outer barrel, the barrel body of the outer barrel is a longitudinal large barrel, the top surface of the barrel body of the outer barrel is open, the position of the outer side of the barrel body of the outer barrel, which is close to the top surface, is respectively connected with a raw material inlet and a scum overflow port, wherein the raw material inlet is horizontally arranged and tangentially connected with the outer circumference of the barrel body of the outer barrel, and the scum overflow port is arranged at the side of the raw material inlet; the bottom surface of the outer cylinder body is provided with a conical sealing bottom, a plurality of vertically arranged spoilers are longitudinally and uniformly distributed on the inner wall of the conical surface of the conical sealing bottom, and the lowest end of the conical sealing bottom is connected with a bottom discharge valve; the inner part of the outer barrel body is provided with a middle spacer sleeve through a bracket, the middle spacer sleeve is a longitudinal cylinder which has a smaller caliber than that of the outer barrel body and is communicated up and down, and the middle spacer sleeve is level with the upper and lower heights of the outer barrel body and the axial lead of the middle spacer sleeve is coincident; a central overflow cylinder is erected at the position close to the center inside the middle spacer sleeve through a bracket, the cylinder body of the central overflow cylinder is a longitudinal small cylinder with the diameter smaller than that of the opening of the middle spacer sleeve, the top surface of the cylinder body of the central overflow cylinder is open, clear juice overflow ports which are uniformly distributed along the circumference of the cylinder wall are arranged at the position close to the upper part of the cylinder body of the central overflow cylinder, and the lower part of the cylinder body of the central overflow cylinder is connected with a liquid outlet pipeline; the liquid outlet pipeline extends downwards in the middle spacer sleeve and penetrates out of the middle spacer sleeve, and then penetrates out of one side of the conical back cover of the outer barrel body in an inclined mode, and therefore a clear juice outlet is formed.
Furthermore, the scum overflow port of the settler is a bracket welded at the outer side of the opening at the side surface of the barrel body of the outer barrel body, the bracket is communicated with the inner part of the outer barrel body, the top surface of the bracket is open, and the bottom surface of the bracket is connected with a pipe joint extending downwards to serve as a scum outlet.
Furthermore, the lower part of the outer barrel of the settler is also provided with a plurality of support legs, and the outer barrel is elevated and supported by the support legs so as to be convenient for operation.
A cane juice heating bacteriostasis and floating impurity removing process based on the system comprises the following steps:
(1) heating for bacteriostasis and generating flocculent impurities
The cane juice conveyed from a superior treatment system is conveyed into a heater, the cane juice is heated to 60-80 ℃ step by 2-3 stage tubular heat exchange of the heater, the heating time is 8-10 minutes, so that most of microorganisms in the cane juice are fully killed or inhibited, part of protein in the cane juice is solidified, and the solidified protein is agglomerated with colloid, bagasse fragments and sludge powder in the cane juice into flocculent impurities with larger specific gravity.
(2) Pure physical separation clarification and floating impurity removal
a. The cane juice heated in the step (1) is tangentially sprayed into the interior of the settler from a raw material inlet of the settler, so that the cane juice forms a rotating liquid level in an interlayer between the outer cylinder and the middle spacer sleeve, flocculent impurities in the cane juice are further agglomerated and enlarged by centrifugal force generated by the rotating liquid level to form flocculent impurities which are easier to precipitate, the flocculent impurities are precipitated to the bottom along the inner wall of the cylinder body of the outer cylinder under the combined action of the centrifugal force and gravity, precipitates are formed under the blocking action of a flow baffle on the conical bottom seal of the outer cylinder, and the precipitates are discharged into an external residual juice barrel by controlling a bottom discharge valve at the lower end of the conical bottom seal of the outer cylinder;
b. the floating foam of impurities mixed with gas generated by the rotating liquid level in the outer cylinder body of the settler floats upwards to the top along the inner wall of the cylinder body of the outer cylinder body, enters the scum overflow port under the action of centrifugal force and is discharged to an external residual juice barrel from the scum overflow port;
c. the cane juice in the settler slowly rises in the interlayer between the middle spacer sleeve and the central overflow cylinder, then flows into the central overflow cylinder from the clear juice overflow port at the upper part of the central overflow cylinder, is discharged outwards from the clear juice outlet through the liquid outlet pipeline, and is pumped to a next-stage treatment system by the impurity removal clear juice pump;
d. the time of the cane juice staying in the settler is 10-20 minutes to ensure that the impurities in the cane juice have enough time to be separated out.
The cane juice heating, bacteriostasis and floating impurity removing system and the process firstly heat and bacteriostasis the cane juice by arranging the heater, conglomerate impurities in the cane juice into flocculent impurities with larger specific gravity, then send the cane juice into a specially designed settler, and the settler separates and clarifies the cane juice purely physically and removes floating impurities by arranging a plurality of combined structures, thereby obtaining the clear cane juice without peculiar smell. The system completely adopts a pure physical mode to carry out bacteriostasis and impurity removal treatment on the sugarcane juice, and no chemical medicine is added, so that the beneficial components in the sugarcane juice are not damaged, the taste and the quality of the sugarcane juice are not influenced, 50-70% of insoluble impurities in the sugarcane primary-pressure juice can be removed, and through the treatment of the system and the process, the cleaning period of a lower-level sugarcane juice fine powder removal system and a later-level membrane treatment system can be effectively prolonged, and the normal operation of a subsequent treatment system is ensured.
Drawings
FIG. 1 is an overall schematic diagram of the cane juice heating, bacteriostasis and impurity removing system of the present invention.
Fig. 2 is a schematic structural view of the settler.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic sectional view taken along the line a-a in fig. 4.
In the figure: 1-heater, 2-settler, 2.1-outer cylinder, 2.2-raw material inlet, 2.3-scum overflow port, 2.3 a-bracket, 2.3 b-scum outlet, 2.4-spoiler, 2.5-bottom discharge valve, 2.6-bracket, 2.7-middle spacer, 2.8-central overflow cylinder, 2.8 a-clear juice overflow port, 2.9-liquid outlet, 2.9 a-clear juice outlet, 2.10-support leg, 3-residual juice barrel, 4-impurity-removing clear juice pump and 5-residual juice pump.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in figures 1-5, the cane juice heating, bacteriostasis and floating impurity removal system comprises a heater 1, a
The settler is provided with an outer barrel 2.1, the barrel body of the outer barrel 2.1 is a longitudinal large cylinder, the top surface of the barrel body of the outer barrel 2.1 is open, the position of the outer side of the barrel body 2.1, which is close to the top surface, of the barrel body is respectively connected with a raw material inlet 2.2 and a scum overflow port 2.3, wherein the raw material inlet 2.2 is horizontally arranged and is tangentially connected with the outer circumference of the barrel body of the outer barrel 2.1, and the scum overflow port 2.3 is arranged at the side of the raw material inlet 2.2. The scum overflow port 2.3 is a bracket 2.3a welded at the outer side of the side opening of the outer barrel 2.1, the bracket 2.3a is communicated with the inner part of the outer barrel 2.1, the top surface of the bracket 2.3a is open, and the bottom surface of the bracket 2.3a is connected with a pipe joint extending downwards to serve as a scum outlet 2.3 b. The bottom surface of the outer cylinder body 2.1 is provided with a conical back cover, a plurality of spoilers 2.4 which are vertically arranged are longitudinally and evenly distributed on the inner wall of the conical surface of the conical back cover, and the bottom discharge valve 2.5 is connected to the lowest end of the conical back cover. The inner part of the outer barrel body 2.1 is provided with a middle spacer sleeve 2.7 through a bracket 2.6, the middle spacer sleeve 2.7 is a vertical cylinder which has smaller caliber than the outer barrel body 2.1 and is penetrated up and down, and the middle spacer sleeve 2.7 is level with the upper and lower height of the outer barrel body 2.1 and the axial lead is coincident. The upper position of the center inside the middle spacer sleeve 2.7 is provided with a central overflow cylinder 2.8 through a bracket 2.6, the cylinder body of the central overflow cylinder 2.8 is a longitudinal small cylinder with the caliber smaller than that of the middle spacer sleeve 2.7, the top surface of the cylinder body of the central overflow cylinder 2.8 is open, the upper position of the cylinder body of the central overflow cylinder 2.8 is provided with clear juice overflow ports 2.8a which are uniformly distributed along the circumference of the cylinder wall, and the lower part of the cylinder body of the central overflow cylinder 2.8 is connected with a liquid outlet pipeline 2.9. The liquid outlet pipe 2.9 extends downwards in the middle spacer sleeve 2.7 and penetrates out of the middle spacer sleeve 2.7, and then penetrates out of one side of the conical bottom cover of the outer cylinder body 2.1 in an inclined mode, and therefore a clear juice outlet 2.9a is formed. The lower part of the outer cylinder body 2.1 is also provided with a plurality of support legs 2.10, and the outer cylinder body 2.1 is elevated and supported by the support legs 2.10.
A cane juice heating bacteriostasis and floating impurity removing process based on the system comprises the following steps:
(1) heating for bacteriostasis and generating flocculent impurities
The cane juice conveyed from a superior processing system is conveyed into a heater 1, the cane juice is heated to 60-80 ℃ step by 2-3 stages of tubular heat exchange of the heater 1, the heating time is 8-10 minutes, so that most of microorganisms in the cane juice are fully killed or inhibited, part of protein in the cane juice is solidified, and the solidified protein is agglomerated with colloid, bagasse fragments and mud dust in the cane juice into flocculent impurities with larger specific gravity.
The step can quickly reduce the biological activity of fresh cane juice, so that the quality of the cane juice is kept stable in the subsequent treatment process, and peculiar smell is not generated due to deterioration.
(2) Pure physical separation clarification and floating impurity removal
a. The cane juice heated in the step (1) is tangentially sprayed into the interior of the
b. impurity froth mixed with gas generated by the rotating liquid level in the outer cylinder body 2.1 of the settler floats upwards to the top along the inner wall of the cylinder body of the outer cylinder body 2.1, enters the scum overflow port 2.3 under the action of centrifugal force and is discharged to the external
c. the cane juice in the
d. the time of the cane juice staying in the
Further, in the step (2), the impurities collected in the
By the system and the process, 50-70% of insoluble impurities in the sugarcane primary juice conveyed by the superior treatment system can be removed, the cleaning period of the filter screen cylinder of the inferior sugarcane juice fine powder removing system is prolonged from one time of cleaning for 8 hours to one time of cleaning for 12 hours, and the membrane cleaning period of the posterior membrane treatment system is prolonged from 12 hours to 18 hours, so that the normal operation of the subsequent treatment system is ensured.
The above-described embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.