CN113951372A - Double-screw extrusion equipment for producing high-moisture pure pea protein artificial meat - Google Patents
Double-screw extrusion equipment for producing high-moisture pure pea protein artificial meat Download PDFInfo
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- CN113951372A CN113951372A CN202111184233.8A CN202111184233A CN113951372A CN 113951372 A CN113951372 A CN 113951372A CN 202111184233 A CN202111184233 A CN 202111184233A CN 113951372 A CN113951372 A CN 113951372A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 50
- 108010084695 Pea Proteins Proteins 0.000 title claims abstract description 46
- 235000019702 pea protein Nutrition 0.000 title claims abstract description 46
- 235000013372 meat Nutrition 0.000 title abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 48
- 238000004898 kneading Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 claims description 4
- 238000005121 nitriding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 3
- 239000002994 raw material Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 8
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- 102000004169 proteins and genes Human genes 0.000 description 10
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- 108010082495 Dietary Plant Proteins Proteins 0.000 description 8
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- 239000000835 fiber Substances 0.000 description 5
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- 235000010469 Glycine max Nutrition 0.000 description 3
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- 108010064851 Plant Proteins Proteins 0.000 description 2
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- 229920001542 oligosaccharide Polymers 0.000 description 2
- 150000002482 oligosaccharides Chemical class 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 235000021118 plant-derived protein Nutrition 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000001235 sensitizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
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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
- A23J3/22—Working-up of proteins for foodstuffs by texturising
- A23J3/26—Working-up of proteins for foodstuffs by texturising using extrusion or expansion
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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
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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
- A23J3/22—Working-up of proteins for foodstuffs by texturising
- A23J3/225—Texturised simulated foods with high protein content
- A23J3/227—Meat-like textured foods
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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Abstract
The invention provides double-screw extrusion equipment for producing high-moisture pure pea protein artificial meat, and belongs to the field of agricultural product processing equipment. The problems that in the prior art, when the double-screw extrusion equipment is used for processing high-moisture pure pea protein meat analogue, the length diameter of a screw is small, the number of kneading blocks in the screw configuration is small, pea protein raw materials cannot be fully sheared, the cooling temperature of a cooling die head of the screw extrusion equipment cannot be controlled, a fibrous structure is not easily formed in the pea protein processing process due to the design problems of short length and the like, and the product quality is poor are solved. The cooling die head comprises a power mechanism, a cooling die head, a screw rod, a sleeve and a feeder, wherein the power mechanism is connected with the screw rod, the screw rod is driven to rotate through the power mechanism, the screw rod is arranged in the sleeve, a plurality of temperature zones are arranged on the sleeve, the feeder is communicated with the interior of the sleeve, and the sleeve is connected with the cooling die head. The method is mainly used for producing the high-moisture pure pea protein meat analogue.
Description
Technical Field
The invention belongs to the field of agricultural product processing equipment, and particularly relates to double-screw extrusion equipment for producing high-moisture pure pea protein artificial meat.
Background
The high-moisture plant protein extrusion fibrosis technology is a new international protein texture recombination technology, and products which have high fibrosis degree, convenient eating, rich nutrition and animal protein texture characteristics can be produced by using the technology and can be used as animal protein substitute products to meet the daily diet and nutrition intake requirements of people. The high-moisture vegetable protein extrusion and fibrosis technology mainly takes soybean protein as a main raw material (the specific gravity is more than or equal to 60 percent), takes other cereal protein (peanut protein, wheat protein, pea protein and the like) as auxiliary materials, adopts advanced process technology and screw extrusion processing equipment thereof, pre-mixes and modifies the protein raw material, and feeds the protein raw material into the screw extrusion equipment for fibrosis recombination to form the vegetable protein meat-like product. The product has texture and fiber state similar to meat, is juicy and delicious, and has better chewing feeling compared with traditional bean product. The product still belongs to the development and research stage at home, has small market competition pressure and huge expected profit space.
The existing screw extrusion equipment for producing high-moisture fibrous vegetable protein is only suitable for processing artificial meat taking soybean protein as a main raw material, and other cereal protein is adopted as a main raw material for processing meat-like products, so that the fiber structure and the texture characteristic of the product are poor. The soybean protein with a natural spherical structure is subjected to combined action of pressure, temperature, shearing force and high moisture in extrusion processing equipment, various chemical bonds of the protein structure are maintained to be changed, the structure is damaged, the soybean protein is directionally expanded along the material flow direction, the chemical bonds are re-crosslinked, and finally, a fibrous product with similar muscle texture is formed at a cooling discharge end of the head of the equipment. However, soybean protein contains soybean oligosaccharide and sensitizing factor, and can cause gastrectasia, regurgitation and anaphylaxis in the eating process. Therefore, the artificial meat produced by adopting other plant proteins with low allergenicity as raw materials has certain necessity, good market prospect and certain development space.
Pea protein belongs to high-quality vegetable protein, is different from soybean, does not contain soybean oligosaccharide and sensitization factor, has complete proportion, and does not cause gastrectasia, regurgitation and anaphylactic reaction. Therefore, the pea protein digestion rate is higher than that of the traditional soybean protein, peanut protein, wheat protein and the like. Therefore, the pea protein serving as a raw material for preparing the meat-like product does not contain sensitizing factors, and has a plurality of nutritional functions and health-care effects. However, the fiber structure and texture characteristics of meat analogue produced from pea protein are poor due to the low globulin content of pea. Therefore, the existing screw extrusion equipment for producing high-moisture fibrous vegetable protein is not suitable for processing meat-like products taking pea protein as a main raw material, mainly because the long diameter of a screw of the extrusion equipment is smaller, the number of kneading blocks in the screw configuration is less, and the pea protein raw material cannot be sufficiently sheared, so that the residence time in a sleeve of the pea protein raw material extrusion equipment is short, meanwhile, the content of globulin in the pea protein is less, and the processing characteristics of the pea protein are influenced.
Disclosure of Invention
The invention provides double-screw extrusion equipment for producing high-moisture pure pea protein artificial meat, aiming at solving the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a twin-screw extrusion equipment for producing high moisture pure pea protein meat analogue, it includes power unit, cooling die head, screw rod, sleeve and feeder, power unit links to each other with the screw rod, and it is rotatory through power unit drive screw rod, the screw rod sets up in telescopic inside, be provided with a plurality of temperature subregion on the sleeve, the feeder communicates with the sleeve is inside, the sleeve passes through die head connecting device and links to each other with the cooling die head, the draw ratio of screw rod is more than or equal to 40: 1.
furthermore, the screw comprises a spline shaft, a large-pitch double-helix conveying thread, a medium-pitch double-helix conveying thread, a small-pitch double-helix conveying thread, a reverse small-pitch double-helix conveying thread, a choke ring and a kneading block, and the inner walls of the large-pitch double-helix conveying thread, the medium-pitch double-helix conveying thread, the small-pitch double-helix conveying thread, the reverse small-pitch double-helix conveying thread, the choke ring and the kneading block are provided with key grooves matched with splines on the spline shaft and connected with the spline shaft through the key grooves.
Further, the diameter D of screw is 50mm, the length that screw thread was carried to big pitch double helix is 2D, the length that screw thread was carried to medium pitch double helix is 1.5D, the length that screw thread was carried to little pitch double helix is 1D, the length that screw thread was carried to reverse little pitch double helix is 0.5D, the length of choked flow ring is 0.25D, the length of kneading the piece is 1D.
Furthermore, the screw comprises a feeding conveying area, a compression mixing area and a melting and curing area, wherein the feeding conveying area comprises 8 large-pitch double-helix conveying threads, 2 medium-pitch double-helix conveying threads and 1 small-pitch double-helix conveying thread; the compression mixing area comprises 4 medium-pitch double-helix conveying threads, 4 small-pitch double-helix conveying threads, 2 reverse small-pitch double-helix conveying threads, 2 choking rings and 4 kneading blocks; 2 medium-pitch double-helix conveying threads, 1 reverse small-pitch double-helix conveying thread, 5 small-pitch double-helix conveying threads and 2 kneading blocks in the melting and curing area.
Furthermore, the kneading block consists of 2-8 kneading pieces, and the staggered angle between every two kneading pieces is 30-90 degrees.
Further, the length-diameter ratio of the screw is 46: 1.
furthermore, the clearance between the screw and the inner wall of the sleeve is 0.5 mm.
Furthermore, the inner cavity structure of the die head connecting device is a double-hole single-hole guide, the surface of the inner wall is subjected to nitriding treatment, and the surface roughness Ra is less than or equal to 1.6 mu m.
Furthermore, a pressure sensor is arranged at the upper part of the die head connecting device.
Furthermore, the length of the cooling die head is 6-12 times of the diameter D of the screw.
Furthermore, a cooling water channel is arranged in the cooling die head, and the cooling die head is connected with a circulating water cooler.
Furthermore, an upper water inlet and an upper water outlet are arranged at the upper end of the cooling die head, a lower water inlet and a lower water outlet are arranged at the lower end of the cooling die head, the upper water inlet and the lower water inlet are connected with the water outlet end of the circulating water cooler, and the upper water outlet and the lower water outlet are connected with the water return end of the circulating water cooler.
Furthermore, the sleeve is divided into 12 temperature zones, namely a first temperature zone, a second temperature zone, a third temperature zone, a fourth temperature zone, a fifth temperature zone, a sixth temperature zone, a seventh temperature zone, an eighth temperature zone, a ninth temperature zone, a tenth temperature zone, an eleventh temperature zone and a twelfth temperature zone, wherein two ends of each temperature zone sleeve are connected through a flange plate.
Furthermore, the power mechanism comprises a connecting sleeve, a gear box, a coupler and a motor, wherein a power output shaft of the motor is connected with the gear box through the coupler, an output end of the gear box is connected with the connecting sleeve, and the connecting sleeve is connected with the screw rod.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the problems that when the double-screw extrusion equipment in the prior art is used for processing high-moisture pure pea protein meat analogue, the length diameter of a screw is smaller, the number of kneading blocks in the screw configuration is less, pea protein raw materials cannot be fully sheared, the cooling temperature of a cooling die head of the screw extrusion equipment cannot be controlled, the length of the cooling die head is shorter, and the like, so that a fibrous structure is not easily formed in the pea protein processing process, and the product quality is poorer.
The invention improves the existing double-screw extrusion equipment for producing high-moisture fibrous vegetable protein, improves the length-diameter ratio of the screw to 46:1, adopts a building block combined screw to change the screw configuration, and has main screw elements comprising double-screw conveying threads with different screw pitches, kneading blocks and choking rings, and totally 6 screw elements. The screw is recombined by the screw elements, the number of reverse double-helix conveying threads, kneading blocks and choking rings is increased, the temperature partition of the sleeve is increased, the sleeve of the whole extrusion equipment is changed into 12-section temperature partition, the inner cavity of the die head connecting device is processed into a structure with double holes and single guide holes, the surface of the inner wall of the cavity is nitrided, the roughness Ra of the surface of the inner wall is equal to 0.8 mu m, and the cooling die head is connected with a circulating water cooler and used for controlling the temperature of the cooling die head.
The length-diameter ratio of the screw is improved to 46:1, the screw structure is changed by adopting the building block combined screw, and main screw elements comprise double-helix conveying threads with different screw pitches, kneading blocks and choking rings, and total 6 screw elements are provided. The screw is recombined by the screw elements, the number of reverse double-helix conveying threads, kneading blocks and choking rings is increased, the temperature partition of the sleeve is increased, the sleeve of the whole extrusion equipment is changed into 12-section temperature partition, the inner cavity of the die head connecting device is processed into a structure with double holes and single guide holes, the surface of the inner wall of the cavity is nitrided, the roughness Ra of the surface of the inner wall is equal to 0.8 mu m, and the cooling die head is connected with a circulating water cooler and used for controlling the temperature of the cooling die head.
In order to verify the effect of the improvements made by the present invention, the inventors compared the main structural features of the existing twin-screw extrusion apparatus for producing high-moisture vegetable protein meat analogue and the twin-screw extrusion apparatus of the present invention, and the effect of producing high-moisture pure pea protein meat analogue.
The length-diameter ratio of the screw of the existing double-screw extrusion equipment for producing the high-moisture vegetable protein meat analogue is smaller, and the length-diameter ratio is 36: 1, the screw length is shorter. Because the screw rod is shorter, the temperature zone is less, the inner structure of the die head connecting device between the extrusion equipment and the cooling die head is a single-hole conical cavity, and meanwhile, the cooling die head is not provided with a circulating water cooler for controlling the temperature of the cooling die head. The length-diameter ratio of the screw is increased to 46:1, the double-helix conveying screw with different screw pitches, the choking ring and the kneading block are used for combining the screw, the choking ring element is added, the number of the kneading blocks is increased, the temperature partition of the sleeve is increased, the whole sleeve of the extrusion equipment is changed into 12 sections of temperature partitions, the internal structure of the original die head connecting device is changed, and the single-hole conical cavity is changed into a double-hole single-hole guide structure.
The high-moisture pure pea protein meat analogue prepared by the same raw materials under the same process conditions has the problems of unobvious fiber structure, poor product quality and insufficient structure fineness in the high-moisture pure pea protein meat analogue prepared by the conventional double-screw extrusion equipment. The high-moisture pure pea protein artificial meat fiber produced by the double-screw extrusion equipment has an obvious structure, good product quality and a fine structure.
Drawings
FIG. 1 is a schematic diagram of a twin screw extrusion apparatus for producing a high moisture pure pea protein meat analogue according to the present invention;
FIG. 2 is a schematic plan view of a screw configuration according to the present invention;
FIG. 3 is a schematic plan view of the sleeve configuration of the present invention;
FIG. 4 is a schematic plan view of a coarse pitch double helix thread according to the present invention;
FIG. 5 is a schematic plan view of a medium pitch double helix thread according to the present invention;
FIG. 6 is a schematic plan view of a small pitch double helix thread according to the present invention;
FIG. 7 is a schematic plan view of a reverse, low pitch, double helix thread of the present invention;
FIG. 8 is a schematic diagram of a flow blocking ring according to the present invention;
FIG. 9 is a schematic plan view of a kneading block according to the present invention;
FIG. 10 is a schematic plan view of a die attachment apparatus according to the present invention;
FIG. 11 is a schematic perspective view of a cooling die according to the present invention;
1-a cooling die head, 2-a circulating water cooler, 3-a die head connecting device, 4-a screw, 5-a pressure sensor, 6-a sleeve, 7-a connecting sleeve, 8-a gear box, 9-a coupler, 10-a motor, 11-a feeder, 12-an upper water inlet, 13-a lower water inlet, 14-an upper water outlet, 15-a lower water outlet, 41-a spline shaft, 42-a large-pitch double-helix conveying screw thread, 43-a medium-pitch double-helix conveying screw thread, 44-a small-pitch double-helix conveying screw thread, 45-a reverse small-pitch double-helix conveying screw thread, 46-a choke ring, 47-a kneading block, 601-a first temperature partition, 602-a second temperature partition, 603-a third temperature partition, 604-a fourth temperature partition, 605-fifth temperature zone, 606-sixth temperature zone, 607-seventh temperature zone, 608-eighth temperature zone, 609-ninth temperature zone, 610-tenth temperature zone, 611-eleventh temperature zone, 612-twelfth temperature zone.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1-11 to illustrate the embodiment, the double-screw extrusion equipment for producing high-moisture pure pea protein meat analogue comprises a power mechanism, a cooling die head 1, a screw 4, a sleeve 6 and a feeder 11, wherein the power mechanism is connected with the screw 4, the screw 4 is driven to rotate by the power mechanism, the screw 4 is arranged inside the sleeve 6, a plurality of temperature zones are arranged on the sleeve 6, the feeder 11 is communicated with the inside of the sleeve 6, the sleeve 6 is connected with the cooling die head 1 through a die head connecting device 3, and the length-diameter ratio of the screw 4 is more than or equal to 40: 1.
the length-diameter ratio of the screw 4 is preferably 40-50: 1, the length-diameter ratio of the screw 4 of this example is 46: 1.
the screw 4 in the embodiment comprises a spline shaft 41, a large-pitch double-helix conveying thread 42, a medium-pitch double-helix conveying thread 43, a small-pitch double-helix conveying thread 44, a reverse small-pitch double-helix conveying thread 45, a choke ring 46 and a kneading block 47, wherein the large-pitch double-helix conveying thread 42, the medium-pitch double-helix conveying thread 43, the small-pitch double-helix conveying thread 44, the reverse small-pitch double-helix conveying thread 45, the choke ring 46 and the kneading block 47 are 6 screw elements, an inner cavity with the diameter larger than the outer diameter of the spline shaft 41 is arranged in each screw element, a key groove matched with a spline on the spline shaft 41 is arranged on the inner wall of each screw element, and one spline shaft 41 penetrates through the centers of all the screw elements to enable all the screw elements to be connected into a whole.
The large-pitch double-helix conveying screw thread 42, the medium-pitch double-helix conveying screw thread 43, the small-pitch double-helix conveying screw thread 44 and the reverse small-pitch double-helix conveying screw thread 45 are all cylindrical, and double-helix conveying screw threads are arranged on the outer wall of the conveying device. The spiral of reverse little pitch double helix thread 45 is carried the spiral of screw thread to being opposite with the spiral of other screw elements, and the outer surface of choking ring 46 is the ring structure, and the diameter D of screw rod 4 is 50mm, and the length that screw thread 42 was carried to big pitch double helix is 2D, and the length that screw thread 43 was carried to medium pitch double helix is 1.5D, and the length that screw thread 44 was carried to little pitch double helix is 1D, and the length that screw thread 45 was carried to reverse little pitch double helix is 0.5D, and the length of choking ring 46 is 0.25D, and the length that kneads together piece 47 is 1D.
The screw 4 comprises a feeding conveying area, a compression mixing area and a melting and curing area, wherein the feeding conveying area comprises 8 large-pitch double- helix conveying threads 42, 2 medium-pitch double-helix conveying threads 43 and 1 small-pitch double-helix conveying thread 44; the compression mixing area comprises 4 medium-pitch double- helix conveying threads 43, 4 small-pitch double- helix conveying threads 44, 2 reverse small-pitch double- helix conveying threads 45, 2 choke rings 46 and 4 kneading blocks 47; 2 medium-pitch double-helix conveying threads 43, 1 reverse small-pitch double- helix conveying thread 45, 5 small-pitch double- helix conveying threads 44 and 2 kneading blocks 47 in the melting and curing area, wherein the sum of the lengths of the screws in the screw configuration of the three sections is 46D, the diameter D of the screw is 50mm, and the length of the screw is 2300 mm.
The kneading block 47 is composed of 2-8 kneading pieces, the stagger angle between each kneading piece is 30-90 degrees, and the cross section of each kneading piece is approximate to an ellipse. Preferably, the kneading blocks 47 have the same number of kneading pieces, 5 kneading pieces, 90 staggered angles and a gap between the screw 4 and the inner wall of the sleeve 6 of 0.5 mm. The inner cavity structure of the die head connecting device 3 is a double-hole single-hole guide, the surface of the inner wall is subjected to nitriding treatment, the surface roughness Ra is less than or equal to 1.6 microns, preferably, the surface roughness Ra of the inner wall is equal to 0.8 microns, and the die head connecting device is used for connecting the sleeve 6 and the cooling die head 1, so that extrusion raw materials can smoothly enter the sleeve 6 and enter the cooling die head 1 through conveying and extrusion of the screw rod 4, and high-moisture pure pea protein artificial meat is formed. And the upper part of the die head connecting device 3 is provided with a pressure sensor 5 for sensing the pressure of the head end of the extrusion equipment. The length of the cooling die head 1 is 6-12 times of the diameter D of the screw 4, preferably, the length of the cooling die head 1 is 10 times of the diameter D of the screw 4, the diameter D of the screw 4 is 50mm, and the length of the cooling die head 1 is 500 mm.
A cooling water channel is arranged in the cooling die head 1, the cooling die head 1 is connected with a circulating water cooler 2, an upper water inlet 12 and an upper water outlet 14 are arranged at the upper end of the cooling die head 1, a lower water inlet 13 and a lower water outlet 15 are arranged at the lower end of the cooling die head 1, the upper water inlet 12 and the lower water inlet 13 are connected with the water outlet end of the circulating water cooler 2, the upper water outlet 14 and the lower water outlet 15 are connected with the water return end of the circulating water cooler 2, cooling water is pumped into the upper water inlet 12 and the lower water inlet 13 on the cooling die head 1 by the circulating water cooler 2 and then is discharged from the upper water outlet 14 and the lower water outlet 15 and returns into the circulating water cooler 2, and the temperature of the cooling die head 1 is maintained at 80 ℃ or below 80 ℃.
The sleeve 6 is divided into 12 temperature zones, namely a first temperature zone 601, a second temperature zone 602, a third temperature zone 603, a fourth temperature zone 604, a fifth temperature zone 605, a sixth temperature zone 606, a seventh temperature zone 607, an eighth temperature zone 608, a ninth temperature zone 609, a tenth temperature zone 610, an eleventh temperature zone 611 and a twelfth temperature zone 612, wherein two ends of each temperature zone sleeve are connected through a flange plate.
The power mechanism comprises a connecting sleeve 7, a gear box 8, a coupler 9 and a motor 10, wherein a power output shaft of the motor 10 is connected with the gear box 8 through the coupler 9, the output end of the gear box 8 is connected with the connecting sleeve 7, and the connecting sleeve 7 is connected with the screw rod 4. The power of the motor 10 is transmitted to the connecting sleeve 7 after being changed in speed through the gear box 8, the screw rod 4 is connected with the connecting sleeve 7, and the power of the motor 10 is finally transmitted to the screw rod 4.
The using process is as follows: pea protein raw materials are mixed and stirred and then are placed into a feeder 11, the raw materials are fed into a sleeve 6 of extrusion equipment through the feeder 11, a motor 10 drives a coupler 9 and decelerates through a gear gearbox 8, so that a screw 4 rotates within a certain rotating speed range, the screw 4 adopts a building block combination type, the raw materials are combined into the sleeve 6 with 12 sections of controllable temperature partitions by a large-pitch double-helix conveying thread 42, a medium-pitch double-helix conveying thread 43, a small-pitch double-helix conveying thread 44, a reverse small-pitch double-helix conveying thread 45, a choke ring 46 and a kneading block 47, the materials are conveyed, stirred, sheared, compressed and the like through the screw 4, the materials enter a cooling die head 1 through a die head connecting device 3, a circulating water cooler 2 controls the temperature of the cooling die head 1, and the materials are extruded to form a fibrous structure.
The twin-screw extrusion equipment for producing high-moisture pure pea protein meat analogue provided by the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (14)
1. A twin-screw extrusion apparatus for producing high moisture pure pea protein analogue, characterized in that: it includes power unit, cooling die head (1), screw rod (4), sleeve (6) and feeder (11), power unit links to each other with screw rod (4), and it is rotatory through power unit drive screw rod (4), screw rod (4) set up the inside at sleeve (6), be provided with a plurality of temperature subregion on sleeve (6), feeder (11) and sleeve (6) inside intercommunication, sleeve (6) link to each other with cooling die head (1) through die head connecting device (3), the slenderness ratio of screw rod (4) is more than or equal to 40: 1.
2. the twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the screw rod (4) comprises a spline shaft (41), a large-pitch double-helix conveying thread (42), a medium-pitch double-helix conveying thread (43), a small-pitch double-helix conveying thread (44), a reverse small-pitch double-helix conveying thread (45), a choke ring (46) and a kneading block (47), wherein the inner walls of the large-pitch double-helix conveying thread (42), the medium-pitch double-helix conveying thread (43), the small-pitch double-helix conveying thread (44), the reverse small-pitch double-helix conveying thread (45), the choke ring (46) and the kneading block (47) are provided with key grooves matched with splines on the spline shaft (41), and are connected with the spline shaft (41) through the key grooves.
3. A twin screw extrusion apparatus for producing a high moisture pure pea protein analogue as claimed in claim 2 wherein: the diameter D of screw rod (4) is 50mm, the length that screw thread (42) were carried to big pitch double helix is 2D, the length that screw thread (43) were carried to medium pitch double helix is 1.5D, the length that screw thread (44) were carried to little pitch double helix is 1D, the length that screw thread (45) were carried to reverse small pitch double helix is 0.5D, the length of choked flow ring (46) is 0.25D, the length of kneading piece (47) is 1D.
4. A twin screw extrusion apparatus for producing a high moisture pure pea protein analogue as claimed in claim 2 wherein: the screw (4) comprises a feeding conveying area, a compression mixing area and a melting and curing area, wherein the feeding conveying area comprises 8 large-pitch double-helix conveying threads (42), 2 medium-pitch double-helix conveying threads (43) and 1 small-pitch double-helix conveying thread (44); the compression mixing area comprises 4 medium-pitch double-helix conveying threads (43), 4 small-pitch double-helix conveying threads (44), 2 reverse small-pitch double-helix conveying threads (45), 2 choke rings (46) and 4 kneading blocks (47); 2 medium-pitch double-helix conveying threads (43), 1 reverse small-pitch double-helix conveying thread (45), 5 small-pitch double-helix conveying threads (44) and 2 kneading blocks (47) in the melting and curing area.
5. A twin screw extrusion apparatus for producing a high moisture pure pea protein analogue as claimed in claim 2 wherein: the kneading block (47) consists of 2-8 kneading pieces, and the staggered angle between every two kneading pieces is 30-90 degrees.
6. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the length-diameter ratio of the screw (4) is 46: 1.
7. the twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: and the clearance between the screw rod (4) and the inner wall of the sleeve (6) is 0.5 mm.
8. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the inner cavity structure of the die head connecting device (3) is a double-hole single-hole guide, the surface of the inner wall is subjected to nitriding treatment, and the surface roughness Ra is less than or equal to 1.6 mu m.
9. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: and a pressure sensor (5) is arranged at the upper part of the die head connecting device (3).
10. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the length of the cooling die head (1) is 6-12 times of the diameter D of the screw (4).
11. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: and a cooling water channel is arranged in the cooling die head (1), and the cooling die head (1) is connected with the circulating water cooler (2).
12. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the cooling die head is characterized in that an upper water inlet (12) and an upper water outlet (14) are arranged at the upper end of the cooling die head (1), a lower water inlet (13) and a lower water outlet (15) are arranged at the lower end of the cooling die head (1), the upper water inlet (12) and the lower water inlet (13) are connected with the water outlet end of the circulating water cooler (2), and the upper water outlet (14) and the lower water outlet (15) are connected with the water return end of the circulating water cooler (2).
13. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the sleeve (6) is divided into 12 temperature zones, namely a first temperature zone (601), a second temperature zone (602), a third temperature zone (603), a fourth temperature zone (604), a fifth temperature zone (605), a sixth temperature zone (606), a seventh temperature zone (607), an eighth temperature zone (608), a ninth temperature zone (609), a tenth temperature zone (610), an eleventh temperature zone (611) and a twelfth temperature zone (612), and two ends of each temperature zone sleeve are connected through flanges.
14. The twin screw extrusion apparatus for producing high moisture pure pea protein analogue as claimed in claim 1, wherein: the power mechanism comprises a connecting sleeve (7), a gear transmission case (8), a coupler (9) and a motor (10), wherein a power output shaft of the motor (10) is connected with the gear transmission case (8) through the coupler (9), the output end of the gear transmission case (8) is connected with the connecting sleeve (7), and the connecting sleeve (7) is connected with the screw (4).
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| CN114766585A (en) * | 2022-03-08 | 2022-07-22 | 湖南富马科食品工程技术有限公司 | Supercritical CO2Production system and method for high-humidity extruded plant-based meat analogue |
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