Auxiliary materials for meat processing, preparation method, hedging mixing device and preparation system

Abstract

A meat processing auxiliary material, preparation method, counter-mixing device, and preparation system, belonging to the field of food processing, is disclosed. The auxiliary material is a mixture of soy dietary fiber, soy protein powder, and distilled water, with a moisture content of 40-80%, wherein the mass ratio of soy dietary fiber to soy protein powder is 2:0.5-1.5. The auxiliary material of the present invention is composed of a mixture of soy dietary fiber and soy protein powder, which can be directly added to meat products to improve the nutritional content of the meat products. Moreover, the preparation method, counter-mixing device, and preparation system provided by the present invention can effectively achieve uniform mixing of soy dietary fiber and soy protein powder, ensuring the uniformity of the ingredient content of any batch of products after addition to meat products.

Description

Technical Field

[0001] The present invention relates to the field of food processing, in particular to an auxiliary material for meat product processing, a preparation method, a counter-mixing device and a preparation system. Background Art

[0002] After special processing, soybean dietary fiber has certain gelling, oil and water retention properties. It can be used in canned products to change the processing characteristics of meat products to increase the protein content and the health benefits of fiber. It is mainly used in meat products such as ham, luncheon meat, sandwiches, and meat floss.

[0003] Soy protein, as a plant protein, has an amino acid composition similar to that of milk protein. Except for a slightly lower content of methionine, the content of other essential amino acids is relatively rich. In terms of nutritional value, it is equivalent to animal protein. In terms of genetic structure, it is also the closest to human amino acids. Therefore, it is the most nutritious plant protein and is widely used in various food systems, such as meat products, baked goods, dairy products, beverages, etc.

[0004] While both are used in meat products, existing technologies do not yet exist for their combined use. Furthermore, given their excellent water-retention properties, thoroughly mixing them is challenging. If they are not evenly mixed, adding them to meat products can result in varying ingredient content across batches, or even within the same batch, affecting product taste and quality. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary material for meat processing, a preparation method, a counter-mixing device and a preparation system. The auxiliary material is composed of a mixture of soy dietary fiber and soy protein powder, and can be directly added to meat products. Moreover, the preparation method, the counter-mixing device and the preparation system provided by the present invention can effectively achieve uniform mixing of soy dietary fiber and soy protein powder, thereby ensuring the uniformity of the ingredient content of any batch of products after being added to meat products.

[0006] The technical solution adopted by the present invention to achieve the above technical purpose is: a meat processing auxiliary material, which is a mixture of soybean dietary fiber, soybean protein powder and distilled water with a moisture content of 40-80%, wherein the mass ratio of soybean dietary fiber to soybean protein powder is 2:0.5-1.5.

[0007] A method for preparing auxiliary materials for meat product processing comprises the following steps:

[0008] 1) weighing soy dietary fiber powder and soy protein powder that meet national standards in a mass ratio of 2:0.5-1.5, mixing the two with distilled water to form a dietary fiber suspension and a protein suspension, respectively, and then introducing carbon dioxide into the dietary fiber suspension and the protein suspension to form a gas-liquid mixed phase, with the carbon dioxide present in the suspension in the form of microbubbles;

[0009] 2) The two gas-liquid mixed phases are respectively made to collide and mix from opposite directions to obtain a mixed liquid phase, and the escaped gas phase is collected and reused;

[0010] 3) The mixed liquid phase is sent to a homogenizer for homogenization, and then filtered to obtain a wet solid phase mixture and a liquid phase. The liquid phase is returned to step 1) and participates in the preparation again;

[0011] 4) The solid phase mixture in step 3) is dried at 50-60° C. to a moisture content of 50-80%, thereby obtaining the product and vacuum packaging it.

[0012] As an optimized solution for the preparation method of the auxiliary materials for meat processing, in step 2), irregularly shaped insoluble particles are distributed in the counter-impact area, and the insoluble particles can vibrate, displace or flip under the impact of the gas-liquid mixture.

[0013] As another optimized solution of the method for preparing the auxiliary materials for meat processing, in step 2), carbon dioxide is blown into the counter-bubble area in the form of microbubbles.

[0014] A counter-mixing device comprises a mixing chamber with a hollow interior, an oscillating assembly vertically arranged in the mixing chamber, the oscillating assembly dividing the mixing chamber into two buffer zones, each of which is provided with an inlet, and two gas-liquid mixed phases entering through the two inlets impact on two vertical side surfaces of the oscillating assembly, the oscillating assembly allowing the gas phase and the liquid phase to pass through so that the two gas-liquid mixed phases are mixed in the oscillating assembly; the oscillating assembly is filled with medical stone particles with irregular shapes so that the medical stone particles vibrate, displace and flip in the oscillating assembly under the impact of external force; a microbubble generator for introducing microbubbles is arranged below the oscillating assembly, an overflow cavity is formed above the oscillating assembly, a liquid phase overflow port is arranged on one side of the overflow cavity, and a gas phase escape port is arranged on the top.

[0015] As an optimization scheme for the above-mentioned counter-mixing device, the oscillation component includes a frame surrounded by an elastic metal wire mesh, and a number of horizontal elastic support nets are arranged in the frame. An oscillation unit is formed between two adjacent elastic support nets, and the irregularly shaped medical stone particles are filled in each oscillation unit; a turbulent flow channel is formed between two adjacent oscillation units; there is a gap between the lowest oscillation unit and the lower side wall of the oscillation component, thereby forming an air chamber, and the microbubble generator is arranged in the air chamber.

[0016] As another optimization scheme of the above-mentioned counter-mixing device, a distributor is provided in the inlet, which includes a rotating body located in the inlet and capable of rotating, and a number of long blade groups and a number of short blade groups extending in a spiral shape are distributed around the side of the rotating body, and the long blade group and the short blade group cause the rotating body to rotate around its axis under the thrust generated when the gas-liquid mixed phase passes through, wherein the long blade group is composed of two first blades spirally distributed along the side wall of the rotating body, and a long flow channel is formed between the two first blades, the top end of the long flow channel extends to the outer end face of the rotating body and forms an open inlet, and the bottom end extends to the inner end face of the rotating body and forms an open outlet; the short blade group is composed of two second blades spirally distributed along the side wall of the rotating body, and a short flow channel is formed between the two second blades, the top end of the short flow channel extends to the outer end face of the rotating body and forms an open inlet, and the bottom end is on the side face of the rotating body and forms an open outlet, and the outlet of the short flow channel and the outlet of the long flow channel are at different positions in the axial projection of the rotating body.

[0017] As another optimization solution for the above-mentioned counter-mixing device, the widths of the long flow channel and the short flow channel gradually decrease from the inlet to the outlet.

[0018] As another optimization scheme of the above-mentioned counter-mixing device, the long blade groups and the short blade groups are distributed alternately, and a channel is formed between adjacent long blade groups and short blade groups. A sealing plate is set at a position flush with the inlet to block the channel.

[0019] A preparation system for auxiliary materials for meat processing includes mixing equipment for preparing soybean dietary fiber and soybean protein powder into suspensions, a microbubble generator for introducing microbubbles into the suspensions, a counter-mixing device for achieving counter-mixing of two gas-liquid mixtures, a homogenizing device for homogenizing the liquid phase after counter-mixing, a filtration device for filtering the homogenized mixture to separate the liquid phase and the solid phase, and a drying device for drying the solid phase. The counter-mixing device is the above-mentioned counter-mixing device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) The auxiliary material of the present invention is composed of a mixture of soy dietary fiber and soy protein powder, which can be directly added to meat products to improve the nutritional content of the meat products; and the preparation method, hedging mixing device and preparation system provided by the present invention can effectively achieve uniform mixing of soy dietary fiber and soy protein powder, ensuring the uniformity of the content of ingredients in any batch of products after adding them to meat products;

[0022] 2) In the preparation method of the present invention, soybean dietary fiber and soybean protein powder are first mixed with distilled water to form a suspension, and then carbon dioxide is introduced into the suspension in the form of microbubbles. The two gas-liquid mixed phases formed are counter-mixed, and then homogenized and dried to a specified moisture content. The two components are formed into a suspension and counter-mixed, so that the two components can be fully mixed. In order to further improve the mixing effect, irregularly shaped insoluble particles are set in the counter-mixing area, and the impact of the gas-liquid mixed phase is used to cause the insoluble particles to vibrate in a small range, thereby disturbing and changing the flow state and direction of the counter-mixing area, so that the insoluble soybean dietary fiber and soybean protein powder can be better mixed. Moreover, the presence of the insoluble particles can cause the microbubbles to rupture, thereby playing the role of dispersing the soybean dietary fiber and soybean protein powder in the liquid phase, facilitating the uniform mixing of the two. At the same time, additional microbubbles can be introduced into the counter-mixing area. The newly introduced microbubble flow can not only play a role in further turbulent mixing, but also cause the interaction of fusion and rupture between the bubbles, thereby improving the mixing effect and function.

[0023] 3) The core of the counter-hedging mixing device provided by the present invention is an oscillation component that allows the gas phase and the liquid phase to pass through, and the oscillation component is filled with medical stone particles. These particles vibrate, displace and flip when the gas and liquid collide with each other, and because the oscillation component frame is idle, they will not be lost with the liquid phase, thereby forming a relatively stable counter-hedging area; in order to improve the mixing effect, a plurality of oscillation units are formed in the frame of the oscillation component, and the medical stone particles are filled in the oscillation units. There are turbulent flow channels between the oscillation units. Since there is no filler in the turbulent flow channel, the impact force of the gas-liquid mixing passing through the turbulent flow channel is greater, which can cause the oscillation units on both sides to vibrate perpendicular to the horizontal direction, thereby improving the vibration mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of the preparation system of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the hedge mixing device of the present invention;

[0026] Figure 3 It is a schematic diagram of the framework of the hedging mixing device;

[0027] Figure 4 Schematic diagram of the oscillation unit and the medical stone particles filled therein;

[0028] Figure 5 Schematic diagram of the structure of the distributor;

[0029] Figure 6 A schematic diagram of a rotating body from one perspective;

[0030] Figure 7A schematic diagram of a rotating body from another perspective;

[0031] Figure numerals: 1. mixing chamber, 101. inlet, 102. buffer zone, 103. microbubble generator, 104. overflow cavity, 105. gas phase escape port, 106. liquid phase overflow port, 2. oscillation assembly, 201. frame, 202. elastic support net, 203. oscillation unit, 204. turbulent flow channel, 205. aeration chamber, 3. distributor, 301. sleeve, 302. rotating body, 303. rotating shaft, 304. fixing block, 305. second blade, 306. short flow channel, 307. first blade, 308. long flow channel, 309. sealing plate. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts not explained in the following embodiments of the present invention, such as the selection of models of various equipment (drying equipment, stirring equipment, homogenizing equipment, vacuum packaging equipment, etc.), the limitation of process parameters, etc., should be understood as existing technologies known or should be known to those skilled in the art.

[0033] Example 1

[0034] A meat processing auxiliary material, which is a mixture of soybean dietary fiber, soybean protein powder and distilled water with a moisture content of 40-80%. The soybean dietary fiber powder is selected from soybean dietary fiber powder that complies with the national standard GB / T22494-2008, and the soybean protein powder is selected from soybean protein powder for food industry that complies with the national standard GB / T20371-2006. The moisture content depends largely on the final filtration step. Generally, the preferred moisture content is about 50%, but other moisture contents are also possible. Numbers, such as 60%, 65%, 70% and 75%, etc., wherein the mass ratio of soy dietary fiber to soy protein powder is 2:0.5-1.5, the preferred mixing ratio is 2:1-1.5, and the most preferred ratio is 2:1. Of course, it can also be other ratios, such as 2:0.75, 2:0.6, 2:0.8, 2:0.9, 2:1.25, 2:1.4, etc. The final form of this product is a wet solid phase, which is vacuum packaged for storage. When used, an appropriate amount of water can be added to form a liquid according to the specific application.

[0035] The preparation method of the above-mentioned auxiliary materials for meat processing is as follows: Figure 1 As shown, the following steps are included:

[0036] 1) Soybean dietary fiber powder and soy protein powder that meet national standards are weighed in a mass ratio of 2:0.5-1.5, wherein the soy dietary fiber powder is selected from the soy dietary fiber powder that meets the national standard GB / T22494-2008, and the soy protein powder is selected from the soy protein powder in the food industry that meets the national standard GB / T20371-2006. The two are then mixed with distilled water to form a dietary fiber suspension and a protein suspension, respectively. The mixing ratio is based on the formation of a flowable liquid, and the general mixing ratio is 1:2-5. Then, the dietary fiber suspension is added to the soy protein powder. Carbon dioxide is introduced into the liquid and protein suspension to form a gas-liquid mixed phase, and the carbon dioxide exists in the suspension in the form of microbubbles, or at least most of the carbon dioxide exists stably in the suspension in the form of microbubbles. In practice, microbubbles are introduced into the liquid phase using a microbubble generator. The microbubble generator can be an existing commercially available generator. According to the volume ratio, the introduction ratio of the liquid phase to the gas phase is generally 1:0.5-2, that is, the volume of carbon dioxide introduced into every 1L of liquid phase is 0.5-2L. In practice, the flow rate of the suspension and the gas flow rate are used for calculation;

[0037] 2) The two gas-liquid mixtures are respectively made to collide and mix from opposite directions. The flow directions of the two gas-liquid mixtures are both horizontal, and the centers of the two gas-liquid mixtures can be on the same straight line or slightly offset from each other by a certain distance. That is, the centers of the two gas-liquid mixtures are not on the same straight line, but they cannot be separated from each other's motion trajectories. When the two gas-liquid mixtures are collided, the flow rate, pressure and flow rate of the two gas-liquid mixtures are exactly the same, thereby obtaining a mixed liquid phase. At the same time, the escaped gas phase is collected and reused;

[0038] 3) sending the mixed liquid phase into a homogenizer for homogenization. The purpose of homogenization is, first, to further mix the two evenly, and second, to "crush" and refine the fiber. The homogenizer can use existing equipment, and the parameters and time of homogenization are adjusted according to actual conditions. After homogenization, filtration is performed. The filtration adopts existing filtration equipment. Its purpose is to effectively separate the mixed soy dietary fiber and soy protein to obtain a wet solid phase mixture and a liquid phase. The liquid phase returns to step 1) and participates in the preparation again;

[0039] 4) The solid phase mixture in step 3) is dried at 50-60° C. to a moisture content of 50-80%. To accelerate the drying process, air purge may be introduced, but clean sterile air must be used and the temperature must not exceed 50-60° C. The product is then vacuum-packaged using existing vacuum packaging equipment. The product can be packaged in bags, cans, or bottles, depending on the specific situation.

[0040] The above is a basic implementation of the present invention, and further improvements, optimizations and limitations can be made on the above basis to obtain the following embodiments:

[0041] Example 2

[0042] This embodiment is a further improvement to the preparation method in Example 1. Its main method is the same as the preparation method in Example 1, and the improvement is that: in the step 2), irregularly shaped insoluble particles are distributed in the counter-attack area. The counter-attack area refers to the area where the impact of two gas-liquid mixed phases occurs. The insoluble particles refer to solid particles that are insoluble in water. In practice, medical stone is used to crush small particles with a diameter of 1-3 mm. The particles have an irregular shape and an angular structure. Due to the impact, they can undergo a certain displacement or flipping in the counter-attack area, but are confined to the counter-attack area and will not be lost with the fluid. Under the impact of the gas-liquid mixed phase, the insoluble particles can vibrate, displace or flip in a small range. The vibration described here and below refers to a small-scale displacement that can be restored to its original position within a certain range. The displacement described here and below refers to a position change that cannot be restored to its original position. The flipping described here and below refers to the rotation of the insoluble particles around themselves or other positions.

[0043] Example 3

[0044] This embodiment is a further improvement of the preparation method in Example 1. The main method is the same as the preparation method in Example 1, and the improvement is that in step 2), carbon dioxide is blown into the counter-bubble area in the form of microbubbles, that is, carbon dioxide gas is blown into the counter-bubble area using a microbubble generator. The microbubble generator can be an existing commercially available generator. In practice, the proportion of carbon dioxide blown in is calculated based on the flow rate of the two gas-liquid mixed phases. Assuming that the sum of the flow rates of the two gas-liquid mixed phases is 1, the flow rate of the gas phase is generally 0.2-1.

[0045] Example 4

[0046] A counter-mixing device, such as Figure 2 and 3As shown, it includes a mixing chamber 1 with a hollow interior. The mixing chamber 1 is generally cylindrical, and the axial direction of the cylinder is in a horizontal state. Of course, it can also be made into other shapes. An oscillation component 2 is vertically arranged in the mixing chamber 1. The oscillation component 2 itself is fixed in the mixing chamber 1 and cannot be moved. It is generally a cylindrical shape with closed ends, and it is coaxial with the mixing chamber 1. The circumferential side wall is fixedly connected to the inner wall of the mixing chamber 1. The oscillation component 2 separates the mixing chamber 1 into two buffer zones 102. The two buffer zones 102 are in a horizontal state, corresponding to the two ends of the cylindrical oscillation component 2, and the two buffer zones 102 are respectively provided with a In practice, the buffer zone 102 is generally shaped like a cone, and the inlet 101 is located at the top of the cone. The gas-liquid mixture entering through the inlet 101 at a certain pressure and speed first enters the buffer zone 102, and the two gas-liquid mixtures entering through the two inlets 101 impact the two vertical sides of the oscillation component 2, that is, the end sides of the cylinder. The oscillation component 2 is actually a structure surrounded by an elastic metal wire mesh, so that the oscillation component 2 allows the gas phase and the liquid phase to pass through, so that the two gas-liquid mixtures are mixed in the oscillation component 2; the oscillation component 2 is filled with irregularly shaped medical stone particles. In practice, medical stone is crushed to form fine particles with a diameter of 1-3 mm, and the filling amount of medical stone particles is generally 50-90% of the capacity of the oscillation component 2, so that the medical stone particles vibrate, displace and flip in the oscillation component 2 under the impact of external force; a microbubble generator 103 for introducing microbubbles into the oscillation component 2 is provided below the oscillation component 2, and the microbubble generator 103 can be an existing commercially available microbubble generator, and its number is set according to the size of the mixing chamber 1 and the oscillation component 2, and a plurality of them can be selected. An overflow cavity 104 is formed above the oscillation component 2, which is equivalent to the overflow cavity 104 in the mixing chamber 1 in practice. A cylindrical structure extending outward is provided at the top, and its top end is closed. The bottom of the cylindrical structure is connected to the upper part of the oscillation component 2, so that the liquid phase and the gas phase can enter the cylindrical structure. A liquid phase overflow port 106 is provided on one side of the overflow cavity 104. The liquid phase overflow port 106 is generally provided in the middle or lower area in the height direction of the overflow cavity 104, and the liquid phase overflow port 106 is connected to a pipeline for transporting the liquid phase mixture to the equipment of the next treatment process. A gas phase escape port 105 is provided on the top, and the gas phase escape port 105 is also connected to the pipeline for recovering the carbon dioxide gas and reusing it.

[0047] Example 5

[0048] This embodiment is an improved solution based on the embodiment 4. Its main structure is the same as that of the embodiment 4. The improvement is as follows: Figure 3 and Figure 4As shown, the oscillation assembly 2 includes a frame 201 surrounded by an elastic metal wire mesh, so that the frame 201 itself also has a certain elasticity, the frame 201 is in a closed cylindrical shape, and its axial direction is in a horizontal state. A plurality of horizontal elastic support nets 202 are set in the frame 201, and the elastic support nets 202 are parallel to its axial direction, and its material is generally also made of metal wire. The edge of the elastic support net 202 is connected and fixed to the frame 201, and an oscillation unit 203 is surrounded between two adjacent elastic support nets 202. The irregular medical stone particles are filled in each oscillation unit 203, and the filling amount of the medical stone particles is generally 50-90% of the capacity of the oscillation unit 203, so that the medical stone particles vibrate, displace and flip in the oscillation unit 203 under the impact of external force; a medical stone particle is formed between two adjacent oscillation units 203. Form a disturbing flow channel 204, the width of the disturbing flow channel 204 is generally 10-20% of the width of the oscillation unit 203, owing to not filling the medical stone particles in the disturbing flow channel 204, so two streams of gas-liquid mixed phases directly impact in the disturbing flow channel 204, and the impact force can impel the oscillation units 203 on both sides to oscillate perpendicular to the horizontal direction; There is a gap between the oscillation unit 203 and the sidewall below the oscillation assembly 2 below, thereby forming an air-blowing chamber 205, the width of the air-blowing chamber 205 is generally 30% of the width of the oscillation unit 203, described microbubble generator 103 is arranged in the air-blowing chamber 205, thereby making gas phase first enter in the air-blowing chamber 205, then float and pass through the oscillation unit 203 successively, impel the medical stone particles in the oscillation unit 203 to move in the vertical direction, play better stirring, mixing effect.

[0049] Example 6

[0050] This embodiment is another improvement scheme based on the embodiment 4. Its main structure is the same as that of the embodiment 4. The improvement is as follows: Figure 5 、 Figure 6 and Figure 7As shown, a distributor 3 is provided in the inlet 101. The inlet 101 is generally tubular. The distributor 3 includes a rotating body 302 located in the inlet 101 and capable of rotating. In practice, the rotating body 302 is generally cylindrical, and a rotating shaft 303 is provided on its outer end face. The free end of the rotating shaft 303 is rotatably provided in a fixed block 304 through a bearing, and the fixed block 304 is fixedly connected to the inner wall of the inlet 101 through a number of connecting members. A number of long blade groups and a number of short blade groups extending in a spiral are distributed around the side of the rotating body 302. The long blade group and the short blade group protrude from the rotating body 302 at the same height. The long blade group and the short blade group generally There is an extremely small gap from the inner wall of the inlet 101, which does not affect the rotation of the long blade group and the short blade group. There is a fluid channel between the long blade group and the short blade group, so that the liquid phase enters the mixing chamber 1 through the fluid channel, and under the thrust generated by the long blade group and the short blade group when the gas-liquid mixed phase passes through, the rotating body 302 rotates around its axis, so that the gas-liquid mixed phase can continuously change the position where it impacts the oscillation component 2. In practice, a pipe sleeve 301 can be set in the inlet 101, and the pipe sleeve 301 has a tapered channel facing the direction of the fluid. The tapered channel gradually shrinks along the flow direction of the fluid, and a circular channel is formed at the bottom of the tapered channel. The circular channel runs through the sleeve 301, the rotating body 302 is in the circular channel, and the circular channel protrudes from the end of the rotating body 302, and the fixed block 304 and the connecting piece thereon are correspondingly in the tapered channel and fixedly connected to the side wall of the tapered channel, and the fixed block 304, the connecting piece and the sleeve 301 are integrally formed. The existence of the tapered channel can accelerate the fluid and then enter the mixing chamber 1 through the circular channel, thereby enhancing the impact force during the impact, wherein the long blade group consists of two first blades 307 spirally distributed along the side wall of the rotating body 302, and a long flow channel 308 is formed between the two first blades 307, and the top of the long flow channel 308 extends to the rotating body 302 The outer end surface of the rotor 302 forms an open inlet, and the bottom end extends to the inner end surface of the rotor 302 and forms an open outlet, that is, the projection length of the long flow channel 308 in the axial direction of the rotor 302 is the same as the length of the rotor 302, and the angle of the first blade 307 around the rotor 302 generally does not exceed 180°, that is, the angle formed by the projection of the line formed by the head and tail ends of the first blade 307 to the axial direction in the perpendicular axial direction does not exceed 180°, preferably does not exceed 90°, and most preferably is 30-60°. The outer end surface of the rotor 302 mentioned here and below refers to the end surface of the two end surfaces of the cylinder away from the mixing chamber 1, and the inner end surface refers to the end surface close to the mixing chamber 1;The short blade group is composed of two second blades 305 spirally distributed along the side wall of the rotor 302. A short flow channel 306 is formed between the two second blades 305. The top of the short flow channel 306 extends to the outer end surface of the rotor 302 and forms an open inlet. The bottom end is located on the side surface of the rotor 302 close to the inner end surface and forms an open outlet. That is, the projected length of the short flow channel 306 in the axial direction of the rotor 302 is less than the length of the rotor 302. In addition, the angle of the second blade 305 around the rotor 302 generally does not exceed 180 degrees, that is, the first end of the second blade 305 is smaller than the second end of the second blade 305. The angle formed by the projection of the line connecting the two ends of the tail to the axial direction perpendicular to the axial direction does not exceed 180°, preferably does not exceed 90°, and most preferably is 30-60°. Furthermore, the outlet of the short channel 306 and the outlet of the long channel 308 are at different positions in the axial projection of the rotating body 302, so that the liquid phase passing through the long channel 308 and the short channel 306 impacts different positions on the oscillation assembly 2. The outlet of the short channel 306 extends beyond the position of the inlet 101, so that the gas-liquid two-phase flow flowing out of the short channel 306 does not impact the side wall of the inlet 101 and be diverted.

[0051] In this embodiment, the widths of the long flow channel 308 and the short flow channel 306 gradually decrease from the inlet to the outlet. Generally, the ratio of the maximum width to the minimum width is 5-10:1.

[0052] In this embodiment, the long blade groups and the short blade groups are alternately distributed, and a channel is formed between adjacent long blade groups and short blade groups. A sealing plate 309 is set at a position flush with the inlet to block the channel, so that the gas-liquid mixed phase can only enter the mixing chamber 1 through the long flow channel 308 and the short flow channel 306.

[0053] Example 7

[0054] A system for preparing auxiliary materials for meat processing, such as Figure 1As shown, it includes a mixing device for making soybean dietary fiber and soybean protein powder into a suspension (the existing stirring and mixing equipment can be selected, and the stirring speed is selected according to the actual situation, and is used to mix distilled water with soybean dietary fiber and soybean protein powder to form a suspension), a microbubble generator for introducing microbubbles into the suspension (the microbubble generator is an existing commercially available device), a hedging device for achieving relative mixing of two gas-liquid mixtures, a homogenizing device for homogenizing the liquid phase after the hedging and mixing (the homogenizing device adopts an existing homogenizer, and its parameters are selected according to the actual situation), a filtration device for filtering the homogenized mixture to separate the liquid phase and the solid phase (the filtration device adopts an existing filter, filter press or filter, and its parameters are selected according to the actual situation) and a drying device for drying the solid phase (the drying device adopts an existing dryer, the drying temperature is 50-60°C, the drying time is selected according to the specific situation, and the moisture content is finally reduced to 40-80%). The hedging device adopts the hedging mixing device in the above-mentioned embodiment 4, embodiment 5 or embodiment 6.

Claims

1. A method for preparing auxiliary materials for meat processing, characterized in that: The following steps are involved: 1) weighing soy dietary fiber powder and soy protein powder that meet national standards in a mass ratio of 2:0.5-1.5, mixing the two with distilled water to form a dietary fiber suspension and a protein suspension, respectively, and then introducing carbon dioxide into the dietary fiber suspension and the protein suspension to form a gas-liquid mixed phase, with the carbon dioxide present in the suspension in the form of microbubbles; 2) The two gas-liquid mixture phases are respectively made to collide and mix from opposite directions to obtain a mixed liquid phase, and the escaped gas phase is collected and reused. Irregularly shaped insoluble particles are distributed in the collided area. Under the impact of the gas-liquid mixture phase, the insoluble particles can vibrate, displace or flip; 3) The mixed liquid phase is sent to a homogenizer for homogenization, and then filtered to obtain a wet solid phase mixture and a liquid phase. The liquid phase is returned to step 1) and participates in the preparation again; 4) The solid phase mixture in step 3) is dried at 50-60° C. to a moisture content of 50-80%, thereby obtaining the product and vacuum packaging it.

2. The method for preparing a meat processing auxiliary material according to claim 1, characterized in that: In the step 2), carbon dioxide is blown into the counter-bubble area in the form of microbubbles.

3. A counter-mixing device comprising a mixing chamber (1) with a hollow interior, characterized in that: An oscillating assembly (2) is vertically arranged in a mixing chamber (1), and the oscillating assembly (2) separates the mixing chamber (1) into two buffer zones (102). The two buffer zones (102) are respectively provided with an inlet (101). Two gas-liquid mixed phases entering through the two inlets (101) impact on two vertical side surfaces of the oscillating assembly (2). The oscillating assembly (2) allows the gas phase and the liquid phase to pass through, so that the two gas-liquid mixed phases are mixed in the oscillating assembly (2); the oscillating assembly (2) is filled with medical stone particles with irregular shapes, so that the medical stone particles vibrate, displace and turn over in the oscillating assembly (2) under the impact of external force; a microbubble generator (103) for introducing microbubbles into the oscillating assembly (2) is arranged below the oscillating assembly (2), and an overflow cavity (104) is formed above the oscillating assembly (2). A liquid phase overflow port (106) is arranged on one side of the overflow cavity (104), and a gas phase escape port (105) is arranged on the top.

4. The counter-mixing device according to claim 3, characterized in that: The oscillation component (2) comprises a frame (201) formed by an elastic metal wire mesh, a plurality of horizontal elastic support meshes (202) are arranged in the frame (201), an oscillation unit (203) is formed between two adjacent elastic support meshes (202), and the irregularly shaped medical stone particles are filled in each oscillation unit (203); a turbulent flow channel (204) is formed between two adjacent oscillation units (203); a gap is provided between the lowest oscillation unit (203) and the lower side wall of the oscillation component (2), thereby forming an air chamber (205), and the microbubble generator (103) is arranged in the air chamber (205).

5. The counter-mixing device according to claim 3, characterized in that: A distributor (3) is provided in the inlet (101), and the distributor (3) includes a rotating body (302) located in the inlet (101) and capable of rotating. A plurality of long blade groups and a plurality of short blade groups extending in a spiral shape are distributed around the side of the rotating body (302), and the long blade group and the short blade group are subjected to the thrust generated when the gas-liquid mixed phase passes through, so that the rotating body (302) rotates around its axis, wherein the long blade group is composed of two first blades (307) distributed in a spiral along the side wall of the rotating body (302), and a long flow channel (308) is formed between the two first blades (307), and the top of the long flow channel (308) extends to the rotating body (302). The short blade group is composed of two second blades (305) spirally distributed along the side wall of the rotating body (302), and a short flow channel (306) is formed between the two second blades (305). The top end of the short flow channel (306) extends to the outer end surface of the rotating body (302) and forms an open flow inlet, and the bottom end is located on the side surface of the rotating body (302) and forms an open flow outlet. The outlet of the short flow channel (306) and the outlet of the long flow channel (308) are at different positions in the axial projection of the rotating body (302).

6. The counter-mixing device according to claim 5, characterized in that: The widths of the long flow channel (308) and the short flow channel (306) gradually decrease from the inlet to the outlet.

7. The counter-mixing device according to claim 5, characterized in that: The long blade groups and the short blade groups are alternately distributed, and a channel is formed between adjacent long blade groups and short blade groups. A sealing plate (309) is provided at a position flush with the inlet to block the channel.

8. A system for preparing auxiliary materials for meat processing, comprising a mixing device for preparing a suspension of soybean dietary fiber and soybean protein powder, a microbubble generator for introducing microbubbles into the suspension, a counter-mixing device for achieving counter-mixing of the two gas-liquid mixtures, a homogenizing device for homogenizing the counter-mixed liquid phase, a filtration device for filtering the homogenized mixture to separate the liquid phase and the solid phase, and a drying device for drying the solid phase, characterized in that: The hedging device is a hedging mixing device as described in any one of claims 3 to 7.

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