Raw material processing system and method for producing high-moisture vegetable protein artificial meat

Abstract

The invention discloses a raw material processing system and method for producing high-moisture vegetable protein artificial meat, the raw material processing system comprises a sleeve, at least two hollow screws and a heating assembly, the hollow screws are arranged in parallel, and each hollow screw comprises a spline hollow shaft; the spline hollow shaft is sequentially sleeved with the first single-head screw block, the first shearing block, the second single-head screw block, the second shearing block and the third single-head screw block in the conveying direction of plant protein raw materials and is in key connection with the spline hollow shaft, one end of the spline hollow shaft is connected with a rotary driving device, and the middle of the spline hollow shaft is rotationally installed in the sleeve. The other end is rotationally connected with a screw supporting element; the heating assembly is arranged in a cavity of the second single-head screw block and a cavity of the third single-head screw block. According to the invention, the vegetable protein raw material can be fully preheated, the viscosity is reduced, the heating is uniform, the caking is not easy, the problems of unbalanced raw material distribution and non-uniform heating caused by direct feeding of the raw material into extrusion equipment are effectively solved, and the quality of the final product is more stable.

Description

Technical Field

[0001] The invention relates to the technical field of processing plant protein imitation meat products, in particular to a raw material processing system and method for producing high-moisture plant protein artificial meat. Background Art

[0002] High-moisture plant protein artificial meat is a plant protein product with the structural characteristics of animal protein. The product is close to the texture and fiber state of meat, is easy to eat, and rich in nutrition. It can be used as a substitute for animal protein to meet people's daily diet and nutritional intake needs.

[0003] The current processing of high-moisture plant protein artificial meat uses advanced high-moisture extrusion fiberized protein recombinant technology to premix and condition the protein raw materials, and then feed them into the screw extrusion equipment for fiberization and recombinantation to form high-moisture plant protein artificial meat. After premixing and conditioning, the viscosity of the plant protein raw materials increases and they are prone to agglomeration. Feeding them into the extrusion equipment will cause unbalanced distribution of the raw materials and uneven heating, affecting the quality of the final product. Summary of the invention

[0004] The purpose of the present invention is to provide a raw material processing system and method for producing high-moisture plant protein artificial meat, so that the plant protein raw materials after premixing and tempering treatment are fully extruded and heated before being fed into the extrusion equipment, so as to solve the problems in the prior art that the viscosity of the plant protein raw materials increases and they are easy to agglomerate after premixing and tempering treatment, and directly feeding them into the extrusion equipment will cause unbalanced raw material distribution and uneven heating.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The raw material processing system for producing high-moisture vegetable protein artificial meat of the present invention comprises a sleeve, a hollow screw and a heating component, wherein one end of the sleeve is provided with a feeding port, and the other end is provided with a discharging port; at least two hollow screws are provided in parallel to extrude the vegetable protein raw material while conveying the vegetable protein raw material, and the hollow screw comprises a spline hollow shaft, a first single-head screw block, a second single-head screw block, a third single-head screw block, a first shear block and a second shear block, wherein the first single-head screw block, the first shear block, the second single-head screw block, the second shear block and the third single-head screw block The screw blocks are sequentially sleeved on the outside of the spline hollow shaft according to the conveying direction of the plant protein raw material and are key-connected to the spline hollow shaft. The pitches of the first single-head screw block, the third single-head screw block and the second single-head screw block decrease sequentially. One end of the spline hollow shaft is connected to a rotary drive device, the middle part is rotatably installed in the sleeve, and the other end is rotatably connected to a screw support element to convey the plant protein raw material from the feeding port to the discharging port; the heating component is arranged in the cavity of the second single-head screw block and the third single-head screw block, and is used to heat the plant protein raw material.

[0007] Furthermore, the hollow screw also includes a baffle ring and a reverse single-head screw block, which are sequentially sleeved on the outside of the spline hollow shaft according to the conveying direction of the plant protein raw material and are key-connected to the spline hollow shaft. One end of the baffle ring is connected to the third single-head screw block, and the other end is connected to the reverse single-head screw block. The thread rotation direction of the reverse single-head screw block is opposite to the thread rotation direction of the first single-head screw block, the second single-head screw block and the third single-head screw block.

[0008] Furthermore, the screw support element is connected to the end of the sleeve by a bolt, a reserved hole is opened on the screw support element, the spline hollow shaft passes through the reserved hole, one end of the reverse single-head screw block extends into the reserved hole and is sleeved with a first nylon sleeve, and the reverse single-head screw block and the screw support element are supported and matched by the first nylon sleeve.

[0009] Furthermore, a heating support element is arranged on the outside of the screw support element, the heating component passes through the axial arrangement of the hollow screw, and one end of the heating component passes through the screw support element and is connected to the heating support element, and the other end is rotatably connected to the inner wall of the cavity of the spline hollow shaft through a first rolling bearing.

[0010] Furthermore, the heating support element is fixedly connected to the screw support element, and a matching hole is provided on the heating support element. One end of the heating component passes through the screw support element and then passes through the matching hole, and the other end extends into the spline hollow shaft and extends along the axial direction of the spline hollow shaft to the first single-head screw block. The heating component and the heating support element are supported and matched by a second nylon sleeve.

[0011] Furthermore, one end of the spline hollow shaft cooperates with the heating support element through a second rolling bearing, and the heating support element supports the rotation of the spline hollow shaft, or a second rolling bearing is provided between the spline hollow shaft and the screw support element.

[0012] Furthermore, the sleeve is a rectangular tube with closed ends, and is formed by connecting multiple sections of rectangular short tubes in sequence. Both ends of the rectangular short tube located in the middle are provided with connecting flanges to facilitate the connection and removal of adjacent rectangular short tubes.

[0013] Furthermore, the heating component is an electric heating rod.

[0014] Furthermore, the rotary drive device includes a drive motor and a gearbox connected to the drive motor, and the gearbox is connected to one end of the hollow screw via a spline.

[0015] The present invention also provides a raw material processing method for producing high-moisture vegetable protein artificial meat, using the raw material processing system for producing high-moisture vegetable protein artificial meat, comprising the following steps:

[0016] After premixing and conditioning, the plant protein raw materials are fed from the feeding port into the raw material processing system for producing high-moisture plant protein artificial meat. The driving motor and the gearbox transmit the power to the hollow screw through the spline. The heating component starts to heat and transfers the heat to the surface of the hollow screw to heat the material entering the sleeve. At this time, the first single-head screw block quickly transfers the material. After the material passes through the first single-head screw block quickly, it is hindered by the first shear block, and the forward speed of the material decreases. The pressure of the material increases here. After passing through the first shear block, the material comes to the second single-head screw block. The material transfer speed decreases, the shear force increases, the residence time in the second single-head screw block increases, and the heating component inside the second single-head screw block heats the material. The material is subjected to high temperature, high pressure, and high shear in the second single-head screw block. The fully heat-absorbing material quickly passes through the third single-head screw block. The heating component inside the third single-head screw block is used to maintain the temperature of the material. When the material reaches the position of the baffle ring, due to the action of the baffle ring and the reverse single-head screw block, the material cannot continue to move forward, and is finally discharged from the discharge port into the extruder for fiberization and reorganization, and finally forms a high-moisture plant protein artificial meat product.

[0017] The high-moisture plant protein refers to a plant protein with a water content between 50% and 70%, such as soy protein, wheat protein, pea protein, hemp protein, etc.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are:

[0019] The raw material processing system and method for producing high-moisture plant protein artificial meat of the present invention, before feeding the plant protein raw materials after premixing and tempering treatment into the extrusion equipment, the plant protein raw materials are conveyed and extruded by the hollow screw in the sleeve, and at the same time, a heating component is arranged inside the hollow screw, so that heat is transferred from the inside to the outside, and the plant protein raw materials are heated, and the heat utilization rate is higher; and, by arranging shear blocks at intervals on the hollow screw, the plant protein raw materials are fully extruded and heated during the conveying process from the feeding port to the discharging port, especially the shearing process, so that the raw materials are crushed and then reshaped, and the rotating screw also has the effect of stirring the raw materials, so that the plant protein raw materials are fully preheated, the viscosity is reduced, the heating is uniform, and it is not easy to agglomerate, which effectively solves the problem of unbalanced distribution and uneven heating of the raw materials caused by directly feeding the raw materials into the extrusion equipment, which is conducive to making the quality of the final product more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0023] Figure 3 It is an axial cross-sectional view of a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the positioning structure between the hollow screw and the heating component and the sleeve in the raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0025] Figure 5 This is a schematic diagram of the positioning structure between the heating component and the inner wall of the hollow screw in the raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of an electric heating rod in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0027] Figure 7 This is a schematic structural diagram of a hollow screw in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the first single-head screw block in the raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0029] Fig. 9 This is a schematic structural diagram of a first shear block or a second shear block in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0030] Fig.10 This is a schematic structural diagram of a second single-head screw block in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0031] Fig.11This is a schematic structural diagram of the third single-head screw block in the raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0032] Fig.12 This is a schematic structural diagram of a flow-blocking ring in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention;

[0033] Fig.13 This is a schematic diagram of the structure of a reverse single-head screw block in a raw material processing system for producing high-moisture vegetable protein artificial meat according to Example 1 of the present invention.

[0034] Explanation of the reference numerals: 100. A raw material processing system for producing high-moisture vegetable protein artificial meat; 1. A hollow screw; 101. A spline; 102. A first single-head screw block; 103. A first shear block; 104. A second single-head screw block; 105. A second shear block; 106. A third single-head screw block; 107. A baffle ring; 108. A reverse single-head screw block; 109. A splined hollow shaft; 110. A first rolling bearing; 2. A sleeve; 201. A feed port; 202. A discharge port; 3. A screw support element; 301. A first nylon bushing; 4. A heating support element; 401. A second rolling bearing; 402. A second nylon bushing; 5. A heating assembly. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "length", "width", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] Example 1

[0040] like Figures 1 to 13 As shown, the raw material processing system 100 for producing high-moisture plant protein artificial meat of this embodiment 1 includes a sleeve 2, a hollow screw 1 and a heating component 5, wherein a feeding port 201 is set at one end of the sleeve 2, and a discharge port 202 is set at the other end; the hollow screw 1 is rotatably installed in the sleeve 2, and one end of the hollow screw 1 is connected to a rotating drive device to transport the plant protein raw material from the feeding port 201 to the discharge port 202, and at least two hollow screws 1 are arranged in parallel to extrude the plant protein raw material while transporting the plant protein raw material; the heating component 5 is arranged in the cavity of the hollow screw 1, and is used to heat the plant protein raw material.

[0041] In this embodiment, the hollow screw 1 includes a spline hollow shaft 109, a first single-headed screw block 102, a second single-headed screw block 104 and a third single-headed screw block 106, and the first single-headed screw block 102, the second single-headed screw block 104 and the third single-headed screw block 106 are sequentially sleeved on the outside of the spline hollow shaft 109 according to the conveying direction of the plant protein raw material, and the first single-headed screw block 102, the second single-headed screw block 104 and the third single-headed screw block 106 are all key-connected to the spline hollow shaft 109; wherein, the first single-headed screw block 102 is connected to the feeding port 201, and the thread pitch on the first single-headed screw block 102 is greater than the thread pitch on the second single-headed screw block 104 and the third single-headed screw block 106; the third single-headed screw block 106 is connected to the discharge port 202, and the thread pitch on the third single-headed screw block 106 is greater than the thread pitch on the second single-headed screw block 104. That is, the pitch relationship among the first single-headed screw block 102, the second single-headed screw block 104 and the third single-headed screw block 106 is: the first single-headed screw block 102> the third single-headed screw block 106> the second single-headed screw block 104. The second single-headed screw block 104, as the segment with the smallest pitch, can effectively extrude the material.

[0042] At this time, the pitch of the first single-headed screw block 102 is the largest, which can be called a large-pitch single-headed screw block. The pitch of the third single-headed screw block 106 is second, which can be called a medium-pitch single-headed screw block. The pitch of the second single-headed screw block 104 is the smallest, which can be called a small-pitch single-headed screw block. The pitch of the first single-headed screw block 102 is the largest mainly to play a role in quickly transferring materials. Most of the interior of the screw of the first single-headed screw block 102 is not provided with a heating component 5 (that is, the subsequent electric heating rod does not pass through the entire first single-headed screw block 102). The material is not heated when passing through the first single-headed screw block 102. When the material passes through the first single-headed screw block 102 quickly, it is affected by the first shear block. 103 is blocked, the material advance speed decreases, the material pressure increases here, and after the material passes through the first shear block 103, it comes to the second single-head screw block 104, where the pitch is the smallest, the material transfer speed decreases, the shear force increases, and the residence time increases here. The second single-head screw block 104 is full of heating components 5 (that is, the subsequent electric heating rod runs through the entire second single-head screw block 104). The material is subjected to high temperature, high pressure, and high shear in the second single-head screw block 104. The material fully absorbs heat. The fully absorbed heat material passes through the third single-head screw block 106, and the pitch of the third single-head screw block 106 increases. After the material passes quickly, it is discharged from the discharge port 202 into the extruder. The third single-head screw block 106 is full of heating components 5 (that is, the subsequent electric heating rod runs through the entire third single-head screw block 106) to keep the temperature of the material from decreasing.

[0043] In this embodiment, the first single-start screw block 102 , the second single-start screw block 104 and the third single-start screw block 106 are all tightly matched with the outer wall of the spline hollow shaft 109 through the splines.

[0044] In this embodiment, the hollow screw 1 also includes a first shear block 103 and a second shear block 105, wherein the first shear block 103 is sleeved on the spline hollow shaft 109 and is key-connected to the spline hollow shaft 109; the second shear block 105 is sleeved on the spline hollow shaft 109 and is key-connected to the spline hollow shaft 109; one of the first shear block 103 and the second shear block 105 is located between the first single-head screw block 102 and the second single-head screw block 104, and the other is located between the second single-head screw block 104 and the third single-head screw block 106. That is, according to the conveying direction of the material, the first single-head screw block 102, the first shear block 103, the second single-head screw block 104, the second shear block 105 and the third single-head screw block 106 are seamlessly connected in sequence. The pitch of the first single-head screw block 102 is the largest and is connected to the feeding port 201. The conveying (transmission) effect is greater than the extrusion effect. After the material contacts the first shear block 103, it undergoes shearing, extrusion (accompanied by transmission), shearing, extrusion (accompanied by transmission) and other actions in sequence, and then cooperates with the heating effect of the heating component 5, which is conducive to uniform heating of the material.

[0045] In this embodiment, the first cutting block 103 and the second cutting block 105 have the same structure. Fig. 9 The first shear block 103 comprises a hollow spline shaft, the inner wall of the hollow spline shaft is provided with splines to match the spline of the spline hollow shaft 109, and the outer wall of the hollow spline shaft is provided with a plurality of elliptical shear blocks, and any two adjacent elliptical shear blocks are arranged vertically to form a "cross" shape, and the material passes through the tip of each elliptical shear block in turn, and is cut (separated, accompanied by extrusion) from different directions in turn, thereby achieving full mixing, stirring and extrusion of the material. The first shear block 103 and the second shear block 105 have the same function in this embodiment.

[0046] In this embodiment, the hollow screw 1 further includes a baffle ring 107 and a reverse single-head screw block 108, which are sequentially sleeved on the outside of the spline hollow shaft 109 according to the conveying direction of the plant protein raw material, and the reverse single-head screw block 108 and the baffle ring 107 are both key-connected with the spline hollow shaft 109; wherein one end of the baffle ring 107 is connected with the end of the third single-head screw block 106 away from the second single-head screw block 104, and the other end of the baffle ring 107 is connected with the reverse single-head screw block 108; the thread rotation direction on the reverse single-head screw block 108 is opposite to the thread rotation direction of the first single-head screw block 102, the second single-head screw block 104 and the third single-head screw block 106. The baffle ring 107 and the reverse single-head screw block 108 are both tightly matched with the spline hollow shaft 109 through splines.

[0047] In this embodiment, the sleeve 2 is a rectangular tube, which is formed by connecting multiple sections of rectangular short tubes in sequence, and the two ends of the rectangular tube are closed. The side wall of the rectangular short tube at one end of the rectangular tube is provided with a feeding port 201, and the side wall of the rectangular short tube at the other end of the rectangular tube is provided with a discharge port 202, and the feeding port 201 and the discharge port 202 are respectively located on both sides of the rectangular tube. Preferably, both ends of any rectangular short tube are provided with connecting flanges to facilitate the connection and removal between adjacent rectangular short tubes. The overall length of the sleeve 2 can be adjusted by increasing or decreasing the number of sections of the rectangular short tube, thereby adjusting the extrusion and heating stroke of the plant protein material.

[0048] In this embodiment, a spline 101 is integrally formed at one end of the first single-start screw block 102 away from the second single-start screw block 104. The spline 101 passes through the end of the rectangular short cylinder with the feeding port 201 for connection with the rotary drive device.

[0049] In this embodiment, a screw support element 3 is provided at the end of the rectangular short cylinder with the discharge port 202, and the end of the spline hollow shaft 109 away from the feeding port 201 passes through the screw support element 3 and is rotatably connected to the screw support element 3 through a second rolling bearing 401. The screw support element 3 is connected to the rectangular short cylinder at the end of the sleeve 2 by bolts. The spline hollow shaft 109 is located at one end of the discharge port 202 without splines on the outer periphery, and this end passes through the reserved hole of the screw support element 3 (end cover structure); at the same time, the reverse single-head screw block 108 is located at the end of the spline hollow shaft 109 without splines, and the end of the reverse single-head screw block 108 facing away from the baffle ring 107 also does not have threads, and this end can be extended into the reserved hole on the above-mentioned screw support element 3 (end cover structure), and the first nylon sleeve 301 is sleeved, so that the reverse single-head screw block 108 and the screw support element 3 (end cover structure) are supported and matched by the first nylon sleeve 301, thereby achieving the function of supporting the spline hollow shaft 109.

[0050] In this embodiment, the heating assembly 5 is preferably an electric heating rod; a heating support element 4 is provided on the side of the screw support element 3 away from the rectangular tube, and the heating support element 4 is fixed to the screw support element 3 by a hexagon socket bolt, and the end of the spline hollow shaft 109 without splines (the end located at the discharge port 202) is matched with the heating support element 4 through a second rolling bearing 401, and the heating support element 4 supports the rotation of the spline hollow shaft 109. Of course, in actual operation, the second rolling bearing 401 can also be provided between the spline hollow shaft 109 and the screw support element 3. The electric heating rod passes through the hole of the heating support element 4 (end plate structure), penetrates the screw support element 3 and enters the hollow screw 1 (i.e., the splined hollow shaft 109), and extends along the axial direction of the splined hollow shaft 109 all the way to the first single-head screw block 102, or partially extends into the first single-head screw block 102. The end of the electric heating rod away from the feeding port 201 is provided with a second nylon sleeve 402, so that the electric heating rod and the heating support element 4 (end plate structure) are supported and matched through the second nylon sleeve 402. One end of the electric heating rod entering the spline hollow shaft 109 is rotatably connected to the inner wall of the cavity of the hollow screw 1 (i.e., the spline hollow shaft 109) through the first rolling bearing 110; at this time, one end of the electric heating rod is tightly matched with the heating support element 4 through the second nylon sleeve 402, and the other end passes through the spline hollow shaft 109 and enters into the spline hole of the first single-head screw block 102 to cooperate with the first rolling bearing 110. When the spline hollow shaft 109 rotates under the driving action of the rotary drive device, the electric heating rod remains stationary, that is, the electric heating rod does not rotate with the rotation of the spline hollow shaft 109. After being energized, the electric heating rod only transfers heat to the surface of the spline hollow shaft 109 and the surfaces of each screw block and shear block, so as to heat the plant protein raw material entering the sleeve 2.

[0051] In this embodiment, the thicker parts at both ends of the electric heating rod are support parts for mounting the second nylon sleeve 402 and the first rolling bearing 110, and the thinner part in the middle is the heating part, such as the built-in resistance wire heating.

[0052] In this embodiment, the rotary drive device includes a drive motor and a gearbox connected to the drive motor, and the gearbox is connected to the end of the hollow screw 1 away from the discharge port 202 through a spline 101. The drive motor drives the gearbox to transmit the rotation speed to the hollow screw 1 through the spline 101, thereby realizing the rotation of each screw block and the shear block.

[0053] The following is a specific description of the working principle of the raw material processing system 100 for producing high-moisture plant protein artificial meat in Example 1, taking pea protein as an example: After the pea protein raw material is premixed and tempered, it is fed into the raw material processing system from the feeding port 201, and the driving motor and the gearbox transfer power to the hollow screw 1 through the spline 101. The electric heating rod starts to heat and transfers heat to the surface of the hollow screw 1 to heat the pea protein raw material entering the sleeve 2. The material (pea protein raw material) is fully heated, sheared and extruded by the first shear block 103, the second single-head screw block 104, the second shear block 105 and the third single-head screw block 106 on the spline hollow shaft 109. The material (pea protein raw material) reaches the position of the baffle ring 107. Due to the action of the baffle ring 107 and the reverse single-head screw block 108, the material (pea protein raw material) cannot move forward and falls from the discharge port 202 into the extrusion equipment to undergo fiberization and reorganization, thereby finally forming a high-moisture plant protein artificial meat product.

[0054] Example 2

[0055] The raw material processing method for producing high-moisture vegetable protein artificial meat of this embodiment 2 adopts the raw material processing system 100 for producing high-moisture vegetable protein artificial meat, and includes the following steps:

[0056] After premixing and tempering, the plant protein raw material is fed from the feed port 201 into the raw material processing system 100 for producing high-moisture plant protein artificial meat. The driving motor and the gearbox transfer power to the hollow screw 1 through the spline 101. The heating component 5 starts to heat and transfers heat to the surface of the hollow screw 1 to heat the material entering the sleeve 2. At this time, the first single-head screw block 102 plays a role in quickly transferring the material. After the material quickly passes through the first single-head screw block 102, the forward speed of the material decreases due to the obstruction of the first shear block 103. The pressure of the material increases here. After passing through the first shear block 103, the material arrives at the second single-head screw block 104. The transfer speed decreases, the shear force increases, and the residence time in the second single-head screw block 104 increases. The heating component 5 inside the second single-head screw block 104 heats the material, and the material is subjected to high temperature, high pressure, and high shear in the second single-head screw block 104. The fully heat-absorbing material quickly passes through the third single-head screw block 106. The heating component 5 inside the third single-head screw block 106 is used to keep the temperature of the material from decreasing. When the material reaches the position of the baffle ring 107, due to the action of the baffle ring 107 and the reverse single-head screw block 108, the material cannot continue to move forward, and is finally discharged from the discharge port 202 into the extruder for fiberization and reorganization, and finally forms a high-moisture plant protein artificial meat product.

[0057] In the raw material processing system and method for producing high-moisture vegetable protein artificial meat of the present invention, the vegetable protein raw materials that have been premixed and tempered are subjected to sufficient extrusion, shearing and heating processes in a sleeve before being fed into the extrusion equipment, especially the shearing process, so that the raw materials are crushed and then reshaped. The stirring action of the rotating screw is more conducive to fully preheating the vegetable protein raw materials, reducing the viscosity, heating evenly, and not easy to agglomerate, which is conducive to the quality of the final product becoming more stable. At the same time, by arranging a heating component inside the hollow screw, heat is transferred from the inside to the outside to heat the vegetable protein raw materials, with higher heat utilization rate, novel and reasonable structure, and easy use.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A raw material processing system for producing high-moisture vegetable protein artificial meat, characterized in that: The invention comprises a sleeve, a hollow screw and a heating component, wherein one end of the sleeve is provided with a feeding port, and the other end is provided with a discharging port; at least two hollow screws are provided in parallel to extrude the plant protein raw material while conveying the plant protein raw material; the hollow screw comprises a spline hollow shaft, a first single-head screw block, a second single-head screw block, a third single-head screw block, a first shearing block and a second shearing block, wherein the first single-head screw block, the first shearing block, the second single-head screw block, the second shearing block and the third single-head screw block are arranged according to the plant protein raw material. The conveying direction is sequentially sleeved on the outside of the spline hollow shaft and key-connected with the spline hollow shaft, the pitches of the first single-head screw block, the third single-head screw block and the second single-head screw block decrease sequentially, one end of the spline hollow shaft is connected to a rotary drive device, the middle part is rotatably installed in the sleeve, and the other end is rotatably connected to a screw support element to convey the plant protein raw material from the feeding port to the discharge port; the heating component is arranged in the cavity of the second single-head screw block and the third single-head screw block, and is used for heating the plant protein raw material.

2. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 1, characterized in that: The hollow screw also includes a baffle ring and a reverse single-head screw block, which are sequentially sleeved on the outside of the spline hollow shaft according to the conveying direction of the plant protein raw material and are key-connected to the spline hollow shaft. One end of the baffle ring is connected to the third single-head screw block, and the other end is connected to the reverse single-head screw block. The thread rotation direction of the reverse single-head screw block is opposite to the thread rotation direction of the first single-head screw block, the second single-head screw block and the third single-head screw block.

3. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 2, characterized in that: The screw support element is connected to the end of the sleeve by a bolt, a reserved hole is opened on the screw support element, the spline hollow shaft passes through the reserved hole, one end of the reverse single-head screw block extends into the reserved hole and is sleeved with a first nylon sleeve, and the reverse single-head screw block and the screw support element are supported and matched by the first nylon sleeve.

4. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 1, characterized in that: A heating support element is arranged on the outside of the screw support element, the heating component penetrates the axial arrangement of the hollow screw, and one end of the heating component penetrates the screw support element and is connected to the heating support element, and the other end is rotatably connected to the inner wall of the cavity of the spline hollow shaft through a first rolling bearing.

5. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 4, characterized in that: The heating support element is fixedly connected to the screw support element, and a matching hole is provided on the heating support element. One end of the heating component passes through the screw support element and then passes through the matching hole, and the other end extends into the spline hollow shaft and extends along the axial direction of the spline hollow shaft to the first single-head screw block. The heating component and the heating support element are supported and matched by a second nylon sleeve.

6. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 5, characterized in that: One end of the spline hollow shaft cooperates with the heating support element through a second rolling bearing, and the heating support element supports the rotation of the spline hollow shaft, or a second rolling bearing is provided between the spline hollow shaft and the screw support element.

7. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 1, characterized in that: The sleeve is a rectangular tube with closed ends. The sleeve is formed by connecting multiple sections of rectangular short tubes in sequence. Both ends of the rectangular short tube located in the middle are provided with connecting flanges to facilitate the connection and removal of adjacent rectangular short tubes.

8. The raw material processing system for producing high-moisture vegetable protein artificial meat according to claim 1, characterized in that: The heating component is an electric heating rod.

9. The raw material processing system for producing high-moisture vegetable protein artificial meat according to any one of claims 1 to 8, characterized in that: The rotary drive device comprises a drive motor and a gearbox connected to the drive motor, and the gearbox is connected to one end of the hollow screw via a spline.

10. A raw material processing method for producing high-moisture vegetable protein artificial meat, characterized in that: A raw material processing system for producing high-moisture vegetable protein artificial meat according to any one of claims 1 to 9 comprises the following steps: After premixing and conditioning, the plant protein raw materials are fed from the feeding port into the raw material processing system for producing high-moisture plant protein artificial meat. The driving motor and the gearbox transmit the power to the hollow screw through the spline. The heating component starts to heat and transfers the heat to the surface of the hollow screw to heat the material entering the sleeve. At this time, the first single-head screw block quickly transfers the material. After the material passes through the first single-head screw block quickly, it is hindered by the first shear block, and the forward speed of the material decreases. The pressure of the material increases here. After passing through the first shear block, the material comes to the second single-head screw block. The material transfer speed decreases, the shear force increases, the residence time in the second single-head screw block increases, and the heating component inside the second single-head screw block heats the material. The material is subjected to high temperature, high pressure, and high shear in the second single-head screw block. The fully heat-absorbing material quickly passes through the third single-head screw block. The heating component inside the third single-head screw block is used to maintain the temperature of the material. When the material reaches the position of the baffle ring, due to the action of the baffle ring and the reverse single-head screw block, the material cannot continue to move forward, and is finally discharged from the discharge port into the extruder for fiberization and reorganization, and finally forms a high-moisture plant protein artificial meat product.

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