WO2020199858A1 - 一种大豆浓缩蛋白制取系统 - Google Patents

一种大豆浓缩蛋白制取系统 Download PDF

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Publication number
WO2020199858A1
WO2020199858A1 PCT/CN2020/078566 CN2020078566W WO2020199858A1 WO 2020199858 A1 WO2020199858 A1 WO 2020199858A1 CN 2020078566 W CN2020078566 W CN 2020078566W WO 2020199858 A1 WO2020199858 A1 WO 2020199858A1
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WIPO (PCT)
Prior art keywords
inlet
outlet
extractor
spiral
tank
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PCT/CN2020/078566
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English (en)
French (fr)
Chinese (zh)
Inventor
尹越峰
张玉琛
梁椿松
袁媛
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迈安德集团有限公司
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Application filed by 迈安德集团有限公司 filed Critical 迈安德集团有限公司
Priority to EA202191376A priority Critical patent/EA202191376A1/ru
Publication of WO2020199858A1 publication Critical patent/WO2020199858A1/zh

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
    • A23J3/00—Working-up of proteins for foodstuffs
    • A23J3/14—Vegetable proteins
    • A23J3/16—Vegetable proteins from soybean
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
    • C07K1/14—Extraction; Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
    • C07K1/14—Extraction; Separation; Purification
    • C07K1/34—Extraction; Separation; Purification by filtration, ultrafiltration or reverse osmosis

Definitions

  • the invention relates to an extraction system, in particular to a soybean protein concentrate preparation system, which can be used for dynamic extraction in food, environmental protection, chemical and other industries, and belongs to the technical field of extraction equipment.
  • the raw material of soy protein concentrate is low-denaturation puffed soybean meal or white soybean flakes desolved at low temperature.
  • the preparation process starts from the daily warehouse, which stores raw materials for about one day, which can ensure the stable operation of the extraction workshop; the materials are first quantitatively output by the daily warehouse discharge frequency conversion scraper, and then enter the grading sieve (20 mesh) through the elevator, and then on the sieve. The material enters the weighing scale for measurement, and then is sent to the temporary storage tank in the extraction workshop through a hoist and a flat scraper.
  • the temporary storage tank in the leaching workshop plays the role of material sealing and ensuring the stability of the leaching supply.
  • the temporary storage box is fed with a variable frequency feed air shutoff device to feed the prepreg quantitatively.
  • the raw materials are fully contacted with the mixed solvent to complete the expansion process, so that the prepreg soybean meal has good permeability in the extractor; the prepreg expanded raw materials enter the extractor, and the soluble sugars and soluble sugars are fully extracted in the extractor.
  • Other small amounts of soluble substances while ensuring that the protein is dissolved as little as possible, so as to achieve the process of increasing the protein content of the raw material, and become a wet-based protein concentrate.
  • the existing soy protein concentrate preparation system has the following defects: 1.
  • the low utilization rate of raw materials leads to a decline in economic benefits.
  • the soy protein concentrate raw materials are processed, transported, and upgraded through multiple processes. Some raw materials inevitably turn into powder from flakes and granules. After sieving, the sieve (passing a 20-mesh sieve or 30-mesh sieve) becomes powdery white beans. Flake or powder low-denaturation puffed soybean meal accounts for 8-10% of the total raw materials, and this part of the material must be stored separately. Among them, the powdered white bean flakes can only process soy protein isolate. If there is a related protein isolate production line, it can still be used with value.
  • the raw material is low-denaturation puffed soybean meal, this part of high-protein mixed raw soybean meal can only be mixed into the high-temperature meal production line, and can be used as animal feed after maturation, which has low economic value.
  • a pre-soaking process must be set up: the raw materials must be pre-soaked before leaching, so that the protein tissue will fully expand after absorbing water, so that the volume of the wet material will increase by about 15-20% compared to the dry material, otherwise the raw material will swell and compact after absorbing moisture and is completely impermeable.
  • the raw material that is saturated with water and ethanol has poor strength, and the porosity under the self-weight pressure after the formation of the material layer is low, and the permeability is poor.
  • the only way to reduce the thickness of the material layer is to control the thickness of the material layer to 350mm (conventional soybean extract material layer is 1000-2800mm), which leads to a huge size of the alcohol washing extractor, but the production capacity is very low.
  • the capacity of an extractor of the same size is only one tenth of that of conventional leaching. As a result, the investment in the extractor is huge, and the related production workshop, civil engineering, steel structure and floor space are very large.
  • the extractor needs to be equipped with a multi-stage solvent circulation pump and a grid backwash system: the solvent circulation spray system is usually no less than a 12-stage circulation pump, which consumes a lot of electricity and has many pump valve leakage points.
  • the concentrated extract obtained by the soy protein concentrate production system contains many powder particles, which will cause the valve of the outlet pipe to be blocked when flowing into the subsequent pipeline, and it must be filtered by a filter screen or a grid. The clogging of the filter or grid will cause the extraction or washing process to be reduced or unsustainable, and must be cleaned and maintained frequently; the grid backwash system is complex in structure, enclosed in an explosive solvent environment (full of ethanol vapor), and frequently malfunctions, affecting the chemical industry The unit runs continuously.
  • the purpose of the present invention is to overcome the problems existing in the prior art and provide a soy protein concentrate preparation system, which can omit screening, prepreg equipment, solvent circulation spraying and grid backwashing systems, so that all powder leftovers can be obtained. Utilization greatly improves economic efficiency.
  • a soybean protein concentrate preparation system of the present invention includes a raw material temporary storage bin, a quantitative auger, a powder extractor and a wet meal conveyor, the outlet of the raw material temporary storage bin and the inlet of the quantitative auger
  • the outlet of the quantitative auger is connected with the solid material inlet of the extractor
  • the wet meal outlet of the extractor is connected with the inlet of the wet meal conveyor
  • the inlet of the new solvent pump is connected with the fresh solvent pipe
  • the outlet of the new solvent pump is connected with the fresh solvent of the extractor.
  • the inlet is connected, the concentrate outlet of the extractor is connected with the inlet of the concentrate extraction pump, the outlet of the concentrate extraction pump is connected to the inlet of the first-stage hydrocyclone through the mixed liquid delivery pipe, and the light phase of the first-stage hydrocyclone
  • the outlet is connected with the inlet of the secondary hydrocyclone, the light phase outlet of the secondary hydrocyclone is connected with the inlet of the solution temporary storage tank, and the primary cyclonic separator, the secondary hydrocyclone and the solution temporary storage tank
  • the bottom outlets are all connected with the return port of the powder extractor; the lower outlet of the solution temporary storage tank is connected with the inlet of the temporary storage tank transfer pump, and the outlet of the temporary storage tank transfer pump is connected to the concentrated extraction of the extraction liquid evaporation recovery system
  • the liquid inlet is connected.
  • the present invention has achieved the following beneficial effects: white soybean flakes or low-denatured soybean meal enter the quantitative auger from the raw material temporary storage bin, and the quantitative auger sends the white soybean flakes directly into the extractor solid material of the powder extractor At the inlet, the powder extractor adopts "one-pot stew" extraction, and the extracted wet-based protein concentrate is discharged from the wet meal outlet of the extractor and sent out by the wet meal conveyor.
  • the new solvent pump sends the new solvent to the freshly dissolved inlet of the extractor.
  • the concentrated solution containing certain powder particles is drawn by the concentrated extracting liquid pump, it is sent to the first-stage hydrocyclone through the mixed liquid delivery pipe for separation, and the solution is removed for the first time
  • the solid particles in the solution are removed again by the secondary hydrocyclone, they enter the solution temporary storage tank for storage.
  • the separated solid particles flow will be extracted from the soaking tank of the leaching device, and the concentrated solution after precipitation will be temporarily removed from the solution.
  • the outlet of the storage tank is sent to the concentrated extraction liquid inlet of the extraction liquid evaporation recovery system through the temporary storage tank transfer pump. This system omits the screening and prepreg process, saves the investment and installation site of screening, storage, and prepreg equipment, and eliminates the complicated and tedious solvent circulation spray system and grid backwashing system.
  • the equipment has good airtightness. The hidden dangers such as running and dripping are eliminated, and the operating cost is low.
  • Greatly improve the utilization rate of raw materials increase the utilization rate of raw materials from 90% to 100%. After deducting sugar quality loss and processing costs, its economic value can be increased by 1800-2000 yuan per ton, and additional storage and transportation costs are eliminated.
  • Increasing the utilization rate of powder materials can greatly increase the profitability of concentrated protein enterprises.
  • the extraction system can be standardized, the investment is low, the plant is built quickly, and the expansion is convenient and quick. It is expected to break the bottleneck of the development of soybean protein concentrate and realize the great development of the industry.
  • the outlet of the temporary storage tank transfer pump is also connected to the return port of the solution temporary storage tank through the temporary storage tank return pipe, and the outlet of the wet meal conveyor is connected to the inlet of the double screw squeezer.
  • the outlet is connected, the liquid phase outlet of the double screw squeezer is connected with the inlet of the squeezing liquid transfer pump, and the outlet of the squeezing liquid transfer pump is also connected with the concentrated extract inlet of the extraction liquid evaporation recovery system; the extraction liquid is evaporated and recovered
  • the ethanol condensate outlet of the system is connected with the ethanol condensate output pipe, and the ethanol condensate output pipe is connected with the extraction liquid supplement pipe and then connected with the fresh solvent pipe.
  • the outlet solution of the temporary storage tank transfer pump can also return to the solution temporary storage tank through the temporary storage tank return pipe.
  • the wet-based concentrated protein sent from the wet meal conveyor enters the double-screw squeezer for mechanical squeezing and desolventization.
  • the separated concentrated extract is sent to the concentrated extract inlet of the extract evaporation recovery system by the squeezed liquid delivery pump.
  • the liquid evaporation recovery system evaporates, the concentrated oligosaccharide slurry obtained by evaporation is discharged from the concentrated oligosaccharide slurry outlet, and the 60-65% (wt) ethanol condensate obtained by evaporation is discharged from the ethanol condensate outlet and enters the ethanol condensate output pipe. It is mixed with 95% (wt) ethanol from the extracting solution replenishing pipe to form 70% (wt) ethanol, which is recycled into the fresh solvent pipe.
  • the discharge port of the double screw squeezing dryer is connected with the feed port of the horizontal disc dryer, and the discharge port of the horizontal disc dryer is connected to the inlet of the hot meal scraper conveyor
  • the outlet of the hot meal scraper conveyor is connected with the inlet of the distribution auger, and the outlet of the distribution auger is connected with the inlet of each vertical disc dryer, and the outlet of each vertical disc dryer is respectively It is connected to the feed inlet of Shakron through the protein air pipe, the exhaust outlet of Shakron is connected to the inlet of the induced draft fan, and the bottom of the Shakron is equipped with a rotary discharge valve; horizontal disc dryer and vertical
  • the gas-phase discharge ports of the disc dryer are respectively connected with the reused heat medium inlet of the extraction liquid evaporation recovery system through the reused heat medium pipe.
  • the wet-based protein after being extruded and desolventized by the double screw squeezer first enters the horizontal disc dryer for pre-drying.
  • the moisture content of the pre-dried protein decreases, the temperature rises, and the material becomes divergent, which is scraped by the hot meal
  • the plate conveyor is sent to the entrance of the distribution auger, and the distribution auger distributes the hot meal into each vertical disc dryer for drying, and obtains concentrated protein particles with a moisture content of less than 7%, which are sent to the Shakelong through the protein air pipe After centrifugal separation, it is discharged from the rotary discharge valve at the bottom of the Shakelong, and then enters the crushing section for crushing to obtain 95% powdered protein concentrate with 100 meshes.
  • the thin syrup of the concentrated extract in the solution temporary storage tank enters the extract evaporation recovery system for concentration.
  • the extract evaporation recovery system includes a preheater, a first evaporator, a second evaporator, and a third evaporator.
  • the thin syrup first preheater For preheating, the preheater uses the secondary steam generated by the horizontal disc dryer and the vertical disc dryer as the heat source.
  • the preheated thin syrup enters the first evaporator, and the first evaporator uses raw steam As the heat source, the first evaporator is micro-negative pressure evaporation, the evaporated second steam is used as the heat source of the second steam, and the second steam is the negative pressure evaporation.
  • the thin syrup After the first steam, the thin syrup enters the second steam for negative pressure evaporation; then enters the third In the evaporator, the three steaming is negative pressure evaporation, and the secondary steam of the horizontal disc dryer and the vertical disc dryer is used as the heat source to realize the utilization of the waste heat in this system; the syrup after the three steaming is from the outlet of the concentrated oligosaccharide slurry Discharge, enter the syrup temporary storage tank, and then quantitatively enter the thin film evaporator for concentration, and finally form a thick syrup with a concentration of ⁇ 55%.
  • the powder extractor includes a rectangular box, and a plurality of parallel tank partitions are connected between the front and rear wall panels of the tank, and each tank partition divides the cavity of the tank into multiple There are two soaking tanks.
  • the upper part of each tank partition is provided with overflow ports.
  • the overflow ports on the adjacent tank partitions are staggered in the front and rear directions, and the height of each overflow port gradually decreases from right to left.
  • the discharge end of the immersion tank on the right is connected with the fresh dissolving inlet of the extractor, and the feed end of the leftmost immersion tank is connected with the concentrate outlet of the extractor; the solid material inlet of the extractor is located at the feed end of the leftmost immersion tank Above, the discharge end of each tank partition is respectively provided with a guide groove for lifting and turning the material to the right.
  • the discharge end of the right wall panel of the box body is equipped with a discharge groove extending upward and right.
  • the extractor is wet.
  • the meal outlet is located at the upper end of the discharging trough; the bottom of each soaking trough is arc-shaped and is equipped with soaking trough spirals, and the spiral directions of the adjacent soaking troughs are opposite; each of the guide troughs is respectively installed with a scraper to lift A scraper discharging mechanism is installed in the discharging trough.
  • the material falls from the solid material inlet of the extractor into the feed end of the leftmost soaking tank, and the new solvent pump sends the new solvent into the new melt inlet of the extractor, into the rightmost soaking tank.
  • the soaking and extraction process is completed in the soaking tank.
  • each soaking tank When the material is pushed to the discharge end of each soaking tank, it is pulled up along the guide tank, and after leaving the liquid surface, it is drained briefly and falls into the lower-level soaking tank on the right.
  • the advancing direction of the materials in adjacent soaking tanks is opposite, so that the solid materials move forward in an S-shaped zigzag.
  • the solid material enters the final soaking tank, it is fully immersed and mixed with the new solution, and then removed from the discharge end of the rightmost soaking tank along the discharge tank and discharged from the wet meal outlet of the extractor, and then passes through the wet meal conveyor Send out.
  • the solid material and the solution always keep reverse flow, the material with the highest content is in contact with the concentrated solution, and the material with the lower content is in contact with the dilute solution, which can always maintain a good osmotic pressure, which further improves the mass transfer efficiency.
  • the solid material advances horizontally along the soaking tank alternately, and after a period of lateral advancement, it is taken out and dropped into the next-stage soaking tank in the vertical direction.
  • the material and solution are stirred repeatedly, and the material and solution are in a turbulent state without laminar flow, even if the porosity is small.
  • the powder can also be fully saturated by the solution.
  • the adjacent overflow ports are staggered in the front and rear directions, and the solvent also flows in an S-shaped zigzag direction opposite to the forward direction of the solid material, flows through the full length of each immersion tank, and then uses the offset overflow to enter the next immersion tank and flow back through
  • the full length of the soaking tank greatly extends the extraction stroke of the solid material and the solution, and can achieve full extraction, thereby achieving efficient extraction.
  • the concentrated extract that reaches the leftmost soaking tank is discharged from the concentrated liquid outlet of the extractor.
  • the soaking liquid level is slightly higher than the solid phase, the solid-liquid mixing is sufficient, the solvent consumption is low, the obtained mixed liquid concentration is high, and the evaporation and separation energy consumption is low.
  • the bottom of the soaking tank is arc-shaped and coincides with the soaking tank spiral, which can avoid dead space at the bottom of the tank; the soaking tank spiral is responsible for the transportation of solid materials in the soaking tank and completes the soaking extraction.
  • the forced stirring of the spiral blade avoids the simple soaking process.
  • the spiral directions of adjacent soaking tanks are opposite to make the materials advance in an S shape.
  • the scraper lifting mechanism is used to lift, drain, and transport the soaked solid materials for solid-liquid separation and solid phase lifting; the scraper discharging mechanism is used to lift, drain and transport the solid materials after extraction. discharge.
  • the screw plus scraper not only plays the role of conveying solid materials, but also can strongly stir the solid materials.
  • the height of the material layer in the soaking box can reach 800mm, which is 50-80% higher than the traditional 350mm material layer;
  • the extraction liquid is naturally permeated from top to bottom, changed to spiral mechanical stirring, solid-liquid direct mixing and leaching, extraction power is large, and extraction efficiency is high; the amount of solvent involved in the circulation of the traditional leaching system is 5 times that of the solid material.
  • the liquid volume ratio is about 1.2-1.5 times, and the initial dosage is only one-fourth to one-third of the original amount, which greatly saves a lot of solvents and capital.
  • each immersion tank is provided with at least one baffle plate extending in the left and right direction, and the lower end of each baffle plate is clamped above the spiral of the immersion tank through the concave arc of the baffle plate.
  • the baffle can prevent the surface solution from short-circuiting out if it is not in full contact with the solid material.
  • the concave arc of the baffle is stuck above the spiral of the soaking tank, which provides a channel for material transportation and forcing the solution from the gap of the concave arc of the baffle.
  • the solid material and the extraction liquid are in agitation and mixing contact, and the two phases are fully contacted in a turbulent state, which further improves the infiltration effect of the material and the solution; the solid and liquid are in turbulent contact under stirring, and the liquid phase is in turbulent contact.
  • Multiple baffles make the solvent flow in an S-shaped upward and downward directions in each immersion tank, preventing short circuit of the solvent, significantly increasing the extraction power and high extraction efficiency.
  • the discharging end of the spiral shaft of each soaking trough is equipped with a hollow large sprocket
  • the lower end of the lifting drive chain of the corresponding scraper lifting mechanism is engaged with the hollow large sprocket
  • the lifting drive chain is evenly provided Multiple lifting scrapers.
  • Part of the material can enter the discharge end of the soaking tank through the hollow of the large hollow sprocket, so that the receiving area of the lifting scraper is enlarged and the conveying capacity of the lifting scraper is increased.
  • the soaking tank spiral and the scraper lifting mechanism rotate synchronously.
  • the lifting scraper picks up and lifts the pushed material from the solution, and then falls into the next soaking tank.
  • the conveying capacity of the lifting scraper is greater than the soaking tank spiral, which can ensure that it does not cause blockage. material.
  • each lifting drive chain is meshed with the small lifting sprocket, each small lifting sprocket is respectively installed on the drive shaft, and each drive shaft is also respectively installed with a linkage sprocket, two adjacent drive
  • the shaft is a group and the two linkage sprockets are connected by a linkage chain; the shaft end of one of the drive shafts is equipped with a lifting sprocket, and the lifting sprocket is connected to the main sprocket of the drive reducer through the main chain.
  • the main sprocket of the drive reducer drives the large sprocket to rotate through the main chain, and the large sprocket drives the small sprocket and the linkage sprocket through the drive shaft to rotate, and the linkage chain drives the other drive shaft and the small sprocket to rotate synchronously ,
  • the two small hoisting sprockets drive the hoisting scraper and the spiral rotation of the soaking trough through the hoisting drive chain respectively to realize a drive reducer that drives the two soaking trough spirals to push the solid materials to the left and right at the same time.
  • Two scraper hoisting mechanisms simultaneously catch, drain and lift solid materials.
  • each spiral bearing seat is fixed in the center of the circular sealing plate, and each circular sealing plate covers and is fixed in the immersion tank.
  • the outside of the screw mounting holes at both ends. Remove the circular sealing plate and the spiral bearing seat to extract the immersion tank spiral from the screw mounting hole.
  • each immersion tank spiral includes a spiral shaft and a main spiral piece wound around the outer circumference of the spiral shaft.
  • a filter cartridge is installed at the feed end of the spiral shaft below the solid material inlet of the extractor, and the filter cartridge faces the main The port on one side of the spiral piece is closed and the other side is open.
  • the concentrate outlet of the extractor is inserted into the inner cavity of the filter cartridge.
  • a plurality of grate bars extending in the axial direction are evenly distributed on the circumference of the filter cartridge , The gap between adjacent grate bars is narrow outside and wide inside.
  • the powder is trapped on the outer surface of the filter cartridge to reduce the content of powdery solids in the concentrated extract as much as possible to provide guarantee for the subsequent hydrocyclone separation and evaporation; the concentration of solid-liquid mixed media
  • the extract After the extract is continuously and stably filtered out, it enters the concentrated liquid outlet of the extractor and flows out.
  • the filtered concentrated extract can be stably and continuously filtered out and transported without clogging the outlet pipe valve, so that it can enter the hydrocyclone separation system for precision. filter.
  • the powder Once the powder passes through the outermost gap of the filter cartridge, it can smoothly fall into the bottom of the filter cartridge and be pushed out by the spiral belt in the filter cartridge to self-clean; prevent powder particles from getting stuck in the gap between adjacent grate bars and affect the filtering capacity.
  • the outer circumference of the filter cartridge is wrapped with a filter cartridge outer spiral belt, and the rotation direction of the filter cartridge outer spiral belt is the same as the coaxial main spiral; the inner wall of the filter cartridge is provided with a filter cartridge The inner spiral belt, the spiral direction of the inner spiral belt in the filter cartridge is opposite to the coaxial main spiral piece.
  • the outer spiral belt of the filter cartridge can push the solid materials flowing with the liquid to the side where the main spiral is located, avoiding excessive material accumulation outside the filter cartridge. A small amount of solid powder will enter the filter cartridge with the extraction liquid and settle on the lower part of the inner wall of the filter cartridge.
  • the spiral belt in the filter cartridge that rotates in the opposite direction of the main spiral will push the sediment out of the filter cartridge from the open end, and then be outside the filter cartridge.
  • the spiral belt pushes out the filter section to complete the self-cleaning process of the filter cartridge. In this way, stable and reliable continuous filtration is realized, the process of the soybean protein concentrate preparation system is complete, the problem of separation of high-powder material and liquid is solved, and the soybean protein concentrate preparation system has a wide range of adaptability to various oils.
  • Figure 1 is the first flow chart of the soybean protein concentrate preparation system of the present invention.
  • FIG. 2 is the second flow chart of the soybean protein concentrate preparation system of the present invention.
  • Figure 3 is a front view of the first embodiment of the powder extractor of the present invention.
  • Fig. 4 is a cross-sectional view along A-A in Fig. 3.
  • Fig. 5 is a sectional view taken along B-B in Fig. 3.
  • Fig. 6 is a cross-sectional view along C-C in Fig. 3.
  • Figure 7 is a schematic diagram of Figure 3 with the front wall panel removed.
  • Fig. 8 is a perspective view of Fig. 3.
  • Fig. 9 is a perspective view of the box body of the powder extractor in Fig. 3 with the top cover removed.
  • Fig. 10 is a perspective view of two adjacent soaking tanks in Fig. 3.
  • Fig. 11 is a perspective view of the leftmost soaking tank in Fig. 3.
  • Fig. 12 is a perspective view of the filter cartridge in Fig. 11.
  • Figure 13 is a partial enlarged view of the filter cartridge.
  • Figure 14 is a schematic diagram of the working state of the second embodiment of the powder extractor of the present invention.
  • Fig. 15 is a top view of Fig. 14.
  • Extractor wet meal outlet 1c. Spiral mounting hole; 1d. Round sealing plate; 1e. Vent hole; 2. Tank partition; 2a. Overflow port; 2b. Guide Feed trough; 2c. Discharge trough; 3. Baffle plate; 3a. Concave arc on the baffle plate; 4. Soaking groove spiral; 4a. Spiral shaft; 4b. Main spiral; 4c. Hollow out large sprocket; 4d. Screw bearing seat; 4e. Right push screw; 4f. Left push screw; 5. Scraper lifting mechanism; 5a. Lifting drive chain; 5b. Lifting scraper; 6. Lifting small sprocket; 7. Drive shaft; 8. Linkage Sprocket; 9. Linkage chain; 10. Lifting large sprocket; 11.
  • the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “inner”, “outer”, etc. indicate the orientation or positional relationship based on the attached
  • the orientation or position relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not mean that the device must have a specific orientation.
  • the soybean protein concentrate preparation system of the present invention includes a raw material temporary storage warehouse E3, a quantitative auger E4, a powder extractor E5 and a wet meal conveyor E6, and the exit of the raw material temporary storage warehouse E3 is connected to
  • the inlet of the quantitative auger E4 is connected, the outlet of the quantitative auger E4 is connected to the solid material inlet of the extractor, the wet meal outlet of the extractor is connected to the inlet of the wet meal conveyor E6, and the outlet of the wet meal conveyor E6 is connected to the double screw squeezer.
  • the feed port of E12 is connected, the liquid phase outlet of the double screw squeezer E12 is connected to the inlet of the squeezing liquid transfer pump B4, and the outlet of the squeezing liquid transfer pump B4 is also connected to the concentrated extract inlet E11a of the extract evaporation recovery system E11 Connected; the ethanol condensate outlet E11b of the extract evaporation recovery system E11 is connected to the ethanol condensate output pipe G5, and the ethanol condensate output pipe G5 is connected to the extract replenishment pipe G6 and then connected to the fresh solvent pipe G1.
  • the discharge port of the double screw squeezing dryer E12 is connected to the feed port of the horizontal disc dryer E13, and the discharge port of the horizontal disc dryer E13 is connected to the inlet of the hot meal scraper conveyor E14.
  • the outlet of the plate conveyor E14 is connected to the inlet of the distribution auger E15, and the outlet of the distribution auger E15 is connected to the inlet of each vertical disc dryer E16, and the outlet of each vertical disc dryer E16 is respectively Connected to the inlet of Shakelong E17 through the protein air supply pipe G7, the exhaust port of Shakelong E17 is connected to the inlet of the induced draft fan E18, and the bottom of the Shakelong E17 is installed with a rotary discharge valve E17a; horizontal round
  • the gas-phase discharge ports of the disk dryer E13 and the vertical disk dryer E16 are respectively connected to the reuse heat medium inlet E11e of the extraction liquid evaporation recovery system E11 through the reuse heat medium pipe G8.
  • the inlet of the new solvent pump B1 is connected to the fresh solvent pipe G1
  • the outlet of the new solvent pump B1 is connected to the fresh dissolving inlet 15 of the extractor
  • the concentrated liquid outlet 16 of the extractor is connected to the inlet of the concentrated extract extraction pump B2
  • the concentrated extract extraction pump The outlet of B2 is connected to the inlet of the first hydrocyclone E7 through the mixed liquid delivery pipe G2
  • the light phase outlet of the first hydrocyclone E7 is connected to the inlet of the second hydrocyclone E8, the second hydrocyclone
  • the light phase outlet of E8 is connected to the inlet of the solution temporary storage tank E9
  • the bottom outlets of the first-level hydrocyclone E7, the second-level hydrocyclone E8 and the solution temporary storage tank E9 are all connected to the return port of the powder extractor E5 .
  • the white soybean flakes or low-denaturation soybean meal are raised to the high position by the bucket elevator E1, they are sent to the raw material temporary storage warehouse E3 by the horizontal conveyor E2E2 for storage, and enter the quantitative auger E4 from the raw material temporary storage warehouse E3, and the quantitative auger E4
  • the white soybean flakes are directly sent to the solid material inlet of the extractor of powder extractor E5, and the "one-pot stew" extraction is adopted in the powder extractor E5, and the extracted wet-based concentrated protein is discharged from the wet meal outlet of the extractor. It is sent out by the wet meal conveyor E6.
  • the wet-based concentrated protein sent by the wet meal conveyor E6 enters the double screw squeezer E12 for mechanical extrusion and desolventization.
  • the separated concentrated extract is sent to the concentrated extract of the extract evaporation recovery system E11 by the squeeze liquid transfer pump B4
  • the squeeze liquid transfer pump B4 At the inlet E11a, evaporation is carried out in the extract evaporation recovery system E11, the concentrated oligosaccharide slurry obtained by evaporation is discharged from the concentrated oligosaccharide slurry outlet E11c, and the 60-65% (wt) ethanol condensate obtained by evaporation is discharged from the ethanol condensate outlet E11b.
  • enter the ethanol condensate output pipe G5 mix with 95% (wt) ethanol from the extraction solution supplement pipe G6 into 70% (wt) ethanol, and enter the fresh solvent pipe G1 for recycling.
  • the new solvent pump B1 sends the new solvent into the new dissolving inlet 15 of the extractor, and the white soybean flakes or low-denaturation soybean meal contact the solvent in the powder extractor E5 to complete the extraction.
  • a fresh solvent flow meter Q1 is installed on the outlet pipe of the new solvent pump B1.
  • the outlet of the solution temporary storage tank E9 is connected to the inlet of the temporary storage tank transfer pump B3 through the temporary storage tank output pipe G4, and the outlet of the temporary storage tank transfer pump B3 passes through
  • the concentrated solution flow meter Q2 and the temporary storage tank output pipe G4 are connected to the extraction liquid evaporation recovery system E11, and the outlet of the temporary storage tank transfer pump B3 is also connected to the return port of the solution temporary storage tank E9 through the temporary storage tank return pipe G3.
  • the concentrated solution after precipitation is discharged from the outlet of the solution temporary storage tank E9 through the temporary storage tank output pipe G4, and the temporary storage tank transfer pump B3 sends it to the first-stage evaporator.
  • the temporary storage tank transfer pump B3 The outlet solution can also be returned to the solution temporary storage tank E9 through the temporary storage tank return pipe G3.
  • the fresh solvent flow meter Q1 can monitor the flow of the fresh solvent
  • the concentrated solution flow meter Q2 can monitor the flow of the output concentrated solution.
  • the concentrated solution containing certain powder particles is drawn by the concentrated extract liquid extraction pump B2, it is sent to the first-stage hydrocyclone E7 through the mixed liquid delivery pipe G2 for separation.
  • the solid particles in the solution are removed for the first time, and then separated by the second-stage hydrocyclone.
  • the separated solid particles will flow into the soaking tank of the powder extractor E5 and can enter the second soaking tank from the left to reduce the concentration of the extractor. Particle concentration at outlet 16.
  • the concentrated solution after precipitation is sent from the outlet of the solution temporary storage tank E9 via the temporary storage tank transfer pump to the concentrated extract inlet E11a of the extract evaporation recovery system E11.
  • the wet-based protein after being extruded and desolvated by the double screw squeezer E12 first enters the horizontal disc dryer E13 for pre-drying. After the pre-drying, the moisture content of the protein decreases, the temperature rises, and the material becomes divergent.
  • the meal scraper conveyor E14 is sent to the entrance of the distribution auger E15, and the distribution auger E15 distributes the hot meal into each vertical disc dryer E16 for drying to obtain concentrated protein particles with a moisture content of less than 7%, which are sent by the protein air
  • the pipeline G7 is sent to the Shakelong E17 for centrifugal separation, and after being discharged from the rotary discharge valve E17a at the bottom of the Shakelong E17, it enters the crushing section and is crushed to obtain 95% powdery protein concentrate with 100 meshes.
  • the thin syrup of the concentrated extract in the solution temporary storage tank E9 enters the extract evaporation recovery system E11 for concentration.
  • the extract evaporation recovery system E11 includes a preheater, a first evaporator, a second evaporator, and a third evaporator.
  • the preheater performs preheating.
  • the preheater uses the secondary steam produced by the horizontal disc dryer E13 and the vertical disc dryer E16 as the heat source.
  • the preheated thin syrup enters the first evaporator.
  • the evaporator uses 10bar saturated raw steam entering from the raw steam inlet E11d as the heat source.
  • the first evaporator is micro-negative pressure evaporation, and the evaporated second steam is used as the heat source of the second steam.
  • the second steam is the negative pressure evaporation, and the thin syrup passes through the first steam.
  • the third steam is negative pressure evaporation, using the secondary steam of the horizontal disc dryer E13 and the vertical disc dryer E16 as the heat source to realize the waste heat
  • the system uses; the syrup after three steaming is discharged from the concentrated oligosaccharide slurry outlet E11c, enters the syrup temporary storage tank, and then quantitatively enters the thin film evaporator for concentration, and finally forms a concentrated syrup with a concentration of ⁇ 55%.
  • the powder extractor E5 includes a rectangular box.
  • the top of the box is provided with an exhaust hole 1e and a manhole.
  • the exhaust hole 1e and the exhaust port of the solution temporary storage tank E9 are all connected with the exhaust gas.
  • the condenser E10 is connected, and the exhaust steam outlet E11f of the extraction liquid evaporation recovery system E11 is also connected with the tail gas condenser E10, and the ethanol gas is condensed and recovered for recycling.
  • a number of parallel tank partitions 2 are connected between the front and rear wall panels of the box. Each tank partition 2 divides the inner cavity of the tank into a plurality of soaking tanks 1.
  • each tank partition 2 is respectively provided Overflow port 2a, the overflow ports 2a on the adjacent tank partitions 2 are staggered in the front and rear direction, and the height of each overflow port 2a gradually decreases from right to left, and the discharge end of the rightmost soaking tank is connected with
  • the fresh dissolving inlet 15 of the extractor the feed end of the leftmost soaking tank is connected with the extractor concentrate outlet 16;
  • the leftmost soaking tank is provided with a solid material inlet 1a of the extractor above the feed end of the soaking tank, and each tank is divided
  • the discharge ends of 2 are respectively provided with a guide groove 2b for lifting and turning to the right, and the discharge end of the right wall panel of the box body is equipped with a discharge groove 2c extending upward and right.
  • each soaking tank 1 is arc-shaped and is respectively installed with soaking tank spirals 4, the spirals 4 of adjacent soaking tanks are rotated in opposite directions, starting from the solid material inlet 1a of the solid material extractor, the odd-numbered tank is the left push screw 4f, Push the solid material toward the front side wall of the powder extractor; in the even-numbered grooves, the right push screw 4e pushes the solid material toward the back side wall of the powder extractor.
  • a scraper lifting mechanism 5 is installed in each guide groove 2b, and a scraper discharging mechanism 14 is installed in the discharging groove 2c.
  • the material enters the feed end of the leftmost soaking tank from the solid material inlet 1a of the extractor, and the new solvent enters the rightmost soaking tank.
  • the soaking and extraction process is completed in the soaking tank 1.
  • the material is pushed by the soaking tank spiral 4 to the discharge end of each soaking tank 1, it is lifted up by the scraper lifting mechanism 5 along the guide tank 2b. Drain and drop into the lower soaking tank on the right.
  • the advancing direction of the materials in adjacent soaking tanks is opposite, so that the solid materials move forward in an S-shaped zigzag.
  • the solid material When the solid material enters the final soaking tank, it is fully immersed and mixed with the new solution, and is taken out from the discharge end of the rightmost soaking tank along the discharge tank 2c by the scraper discharge mechanism 14 and from the wet meal outlet 1b of the extractor Exhaust from the machine.
  • the solid material and the solution always keep reverse flow, the material with the highest content is in contact with the concentrated solution, and the material with the lower content is in contact with the dilute solution, which can always maintain a good osmotic pressure, which further improves the mass transfer efficiency.
  • the solid material alternately advances horizontally along the immersion tank 1, and after a period of horizontal advancement, it is taken out and dropped into the next vertical immersion tank. It is repeatedly stirred.
  • the material and the solution are in a turbulent state, and there will be no laminar flow, even if the porosity is very high. Small powders can also be fully saturated by the solution.
  • the adjacent overflow ports 2a are staggered in the front and rear directions, and the solvent also flows in an S-shaped zigzag direction opposite to the forward direction of the solid material, flows through the full length of each immersion tank 1, and then uses the offset overflow to enter the next immersion tank and turn back
  • the full length of the soaking tank is extended to greatly extend the extraction stroke of the solid material and the solution, and can achieve full extraction, thereby achieving efficient extraction.
  • the concentrated extraction liquid reaching the leftmost soaking tank is discharged from the concentrated liquid outlet 16 of the extractor.
  • the soaking liquid level is slightly higher than the solid phase, the solid-liquid mixing is sufficient, the solvent consumption is low, the obtained mixed liquid concentration is high, and the evaporation and separation energy consumption is low.
  • the bottom of the soaking tank 1 is arc-shaped and coincides with the soaking tank spiral 4, which can avoid the dead zone at the bottom of the tank; the soaking tank spiral 4 is responsible for the transportation of solid materials in the soaking tank 1 and completes the soaking and extraction.
  • the forced stirring of the spiral blade avoids In the simple soaking process, the material and the solvent are insufficiently transferred.
  • the spiral 4 of the adjacent soaking tank rotates in opposite directions so that the material advances in an S shape.
  • the scraper lifting mechanism 5 is used to lift, drain, and transport the soaked solid materials for solid-liquid separation and solid phase lifting; the scraper discharge mechanism 14 is used to lift and drain the solid materials after extraction. Dry and drain.
  • the spiral scraper not only plays the role of conveying solid materials, but also can strongly stir solid materials.
  • each soaking tank 1 is provided with at least one baffle 3 extending in the left-right direction, and the lower end of each baffle 3 is clamped above the spiral of the soaking tank through the concave arc 3a of the baffle.
  • the baffle 3 can prevent the surface solution from flowing out in a short-circuit if it is not in full contact with the solid material.
  • the concave arc 3a of the baffle is stuck on the top of the spiral 4 of the soaking tank to provide a channel for material transportation and forcing the solution to sink from the baffle.
  • the solid material and the extraction liquid Passing through the gap of arc 3a, the solid material and the extraction liquid are in agitation and mixing contact, and the two phases are fully contacted in turbulent state, which further improves the infiltration effect of the material and the solution; the solid and liquid are in turbulent contact under the action of stirring, and the liquid phase is in turbulent contact, the same
  • the phase density is consistent.
  • the multiple baffles 3 make the solvent flow in an S-shaped upward and downward directions in each immersion tank 1 to prevent the short circuit of the solvent, the extraction power is significantly increased, and the extraction efficiency is high.
  • the discharge end of the screw shaft of each immersion tank spiral 4 is respectively equipped with a hollow large sprocket 4c, and the lower end of the lifting drive chain 5a of the corresponding scraper lifting mechanism 5 engages with the hollow large sprocket 4c to lift the drive chain
  • a plurality of lifting scrapers 5b are uniformly provided on 5a. Part of the material can enter the discharge end of the soaking tank through the hollow of the hollow large sprocket 4c, so that the material receiving area of the lifting scraper 5b is enlarged, and the conveying capacity of the lifting scraper 5b is increased.
  • the soaking tank spiral 4 rotates synchronously with the scraper lifting mechanism 5.
  • the lifting scraper 5b picks up and lifts the pushed material from the solution and drops it into the next soaking tank.
  • the conveying capacity of the lifting scraper 5b is greater than that of the soaking tank spiral 4. It can ensure that there is no blockage.
  • each lifting drive chain 5a is meshed with the small lifting sprocket 6.
  • Each small lifting sprocket 6 is respectively installed on the drive shaft 7, and each drive shaft 7 is also equipped with a linkage sprocket 8 respectively.
  • Two adjacent drive shafts 7 is a group and two linkage sprockets 8 are connected by linkage chain 9; one of the drive shafts 7 is equipped with a lifting sprocket 10 at the shaft end, and the lifting sprocket 10 passes through the main chain 11 and the main drive of the reducer 12
  • the sprocket 12a is connected in transmission.
  • the main sprocket 12a of the drive reducer 12 drives the large lifting sprocket 10 to rotate through the main chain 11, the large lifting sprocket 10 drives the small lifting sprocket 6 and the linkage sprocket 8 to rotate through the drive shaft 7, and the linkage chain 9 drives the other
  • the drive shaft 7 and the small lifting sprocket 6 rotate synchronously.
  • the two small lifting sprockets 6 respectively drive the lifting scraper 5b through the lifting drive chain 5a and the rotation of the soaking trough spiral 4 to realize a drive reducer 12 to drive two at the same time
  • the soaking tank screw 4 pushes the solid materials to the left and right, and simultaneously drives the two scraper lifting mechanisms 5 to synchronously scoop, drain and lift the solid materials.
  • each screw bearing housing 4d is respectively fixed in the center of the circular sealing plate 1d, and each circular sealing plate 1d is covered and fixed to the two immersion tanks.
  • the outer side of the screw mounting hole 1c Remove the circular sealing plate 1d and the spiral bearing seat 4d to extract the immersion tank spiral 4 from the screw mounting hole 1c.
  • the lower end of the discharging drive chain 14a of the scraper discharging mechanism 14 is engaged with the hollow large sprocket 4c, and a plurality of discharging scrapers 14b are evenly provided on the discharging drive chain 14a.
  • Part of the material can enter the discharge end of the rightmost soaking tank through the hollow of the large hollow sprocket 4c, so that the receiving area of the discharge scraper 14b is enlarged, and the conveying capacity of the discharge scraper 14b is improved.
  • the soaking tank spiral 4 rotates synchronously with the scraper discharging mechanism 14.
  • the discharging scraper 14b picks up the pushed material from the solution, lifts and discharges the powder extractor.
  • the conveying capacity of the discharging scraper 14b is greater than that of the soaking tank spiral 4. It can ensure that there is no blockage.
  • each immersion tank spiral 4 includes a spiral shaft 4a and a main spiral piece 4b wound around the outer circumference of the spiral shaft.
  • the feed end of the leftmost spiral shaft below the solid material inlet 1a of the extractor is installed with Filter cartridge 13, the port on one side of the filter cartridge 13 facing the main spiral piece 4b is closed and the other side is open, the extractor concentrate outlet 16 is inserted into the inner cavity of the filter cartridge 13, and there are multiple evenly distributed on the circumference of the filter cartridge 13
  • the gap between the adjacent grate bars 13a is narrow outside and wide inside.
  • the powder is trapped on the outer surface of the filter cartridge 13, reducing the powdery solid content in the concentrated extract as much as possible, providing guarantee for the subsequent hydrocyclone separation and evaporation; solid-liquid mixed media
  • the concentrated extract After the concentrated extract is continuously and stably filtered out, it enters the concentrated liquid outlet 16 of the extractor and flows out.
  • the filtered concentrated extract can be stably and continuously filtered out and transported without causing blockage of the outlet pipe valve to facilitate the separation of the liquid
  • the system performs fine filtration.
  • the powder Once the powder passes through the outermost gap of the filter cartridge 13, it can smoothly fall into the bottom of the filter cartridge 13 and be pushed out by the spiral belt 13c in the filter cartridge to self-clean; avoid the powder particles from getting stuck in the gap between adjacent grate bars 13a, Affect filtration capacity.
  • the outer circumference of the filter cartridge 13 is wound with a filter cartridge outer spiral belt 13b, and the rotation direction of the filter cartridge outer spiral belt 13b is the same as the coaxial main spiral piece 4b.
  • the outer spiral belt 13b of the filter cartridge can push the solid material flowing with the liquid to the side where the main spiral piece 4b is located, so as to avoid excessive accumulation of material outside the filter cartridge 13.
  • the inner wall of the filter cartridge 13 is provided with a filter cartridge inner spiral belt 13c, and the spiral direction of the filter cartridge inner spiral belt 13c is opposite to the coaxial main spiral piece 4b.
  • a small amount of solid powder will enter the filter cartridge 13 with the extract and settle on the lower part of the inner wall of the filter cartridge 13.
  • the spiral belt 13c in the filter cartridge which rotates opposite to the main spiral 4b, pushes the sediment out of the filter cartridge 13 from the open end. Then the filter cartridge is pushed out of the filter section by the outer spiral belt 13b of the filter cartridge, thereby completing the self-cleaning process of the filter cartridge 13.
  • stable and reliable continuous filtration is realized, the process of the soybean protein concentrate preparation system is complete, the problem of separation of high-powder material and liquid is solved, and the soybean protein concentrate preparation system has a wide range of adaptability to various oils.
  • the solid material inlet 1a of the extractor can be located at the left part of the top cover of the box, and a feed diversion tube 1a1 is connected below the solid material inlet 1a of the extractor to divert the new solid material to the filter cartridge. 13 front side.
  • the solid material inlet 1a of the extractor can also be provided on the upper part of the left side wall of the box body, and the position in the front-rear direction is also located on the front side of the filter cartridge 13.
  • the immersion tank on the far right has the highest level and overflows to the left one by one.
  • the big arrow in Figure 15 is the direction of the solid material, and the small arrow is the flow direction of the solution, which flows in the reverse direction.
  • the invention adopts "one-pot stew” type leaching, which is efficient and reliable, and can be used for leaching powdery materials and high-powder materials. It can solve the bottleneck in the preparation of soy protein concentrate and cottonseed protein concentrate, overcome the problems of poor material permeability, easy dissolution of protein and sugar and blocking the grid, shallow leaching material, large equipment investment, low production efficiency, and high system failure rate. For powdery leftovers that cannot be processed in the traditional extraction process, such as high-powder white soybean flakes and semi-denatured puffed powder, the soybean protein concentrate preparation system of the present invention can be used to extract and process such materials into concentrated Protein can greatly increase the economic value of such materials, and enhance the economic efficiency and market competitiveness of enterprises.

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CN115382247A (zh) * 2022-09-16 2022-11-25 长春师范大学 一种中药连续提取装置
CN115746958A (zh) * 2022-11-21 2023-03-07 广东顺大食品调料有限公司 一种天然茶萃香基超声辅助低温连续逆流提取工艺
CN117186986A (zh) * 2023-11-08 2023-12-08 四川天源油橄榄有限公司 一种橄榄油生产用高效冷榨装置及方法
CN117547859A (zh) * 2024-01-09 2024-02-13 山西农业大学山西功能食品研究院 一种黄花菜提取物制备分离装置及方法

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CN114225466A (zh) * 2021-11-05 2022-03-25 中材锂膜有限公司 一种湿法锂电池隔膜萃取用多级溢流装置
CN113996083A (zh) * 2021-11-29 2022-02-01 湖南省康多利油脂有限公司 一种从油茶籽粕生产糖萜素的装置及其方法
CN115260279A (zh) * 2022-06-23 2022-11-01 陕西理工大学 一种大鲵胶原皮肤及分泌物蛋白肽提取装置
CN115382247A (zh) * 2022-09-16 2022-11-25 长春师范大学 一种中药连续提取装置
CN115382247B (zh) * 2022-09-16 2024-04-19 长春师范大学 一种中药连续提取装置
CN115746958A (zh) * 2022-11-21 2023-03-07 广东顺大食品调料有限公司 一种天然茶萃香基超声辅助低温连续逆流提取工艺
CN115746958B (zh) * 2022-11-21 2024-05-10 广东顺大食品调料有限公司 一种天然茶萃香基超声辅助低温连续逆流提取工艺
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CN117186986B (zh) * 2023-11-08 2024-01-23 四川天源油橄榄有限公司 一种橄榄油生产用高效冷榨装置及方法
CN117547859A (zh) * 2024-01-09 2024-02-13 山西农业大学山西功能食品研究院 一种黄花菜提取物制备分离装置及方法
CN117547859B (zh) * 2024-01-09 2024-03-22 山西农业大学山西功能食品研究院 一种黄花菜提取物制备分离装置及方法

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