Unfreezing device for improving processing quality of frozen meat

Abstract

The invention belongs to the technical field of meat processing, and particularly discloses an unfreezing device for improving frozen meat processing quality, which comprises an unfreezing box and a magnetic field test box, one side of the unfreezing box is provided with the magnetic field test box, the top of the unfreezing box is provided with a hot water tank, the bottom of the unfreezing box is provided with a recovery water tank, and the hot water tank is communicated with the recovery water tank through a circulating pipe. A water conveying pipe is arranged in the unfreezing box, a plurality of annular spraying pipes which are arranged in parallel are arranged at the bottom of the water conveying pipe, unfreezing grooves are formed in the annular spraying pipes, an unfreezing plate is arranged above the unfreezing grooves, and a Helmholtz coil is arranged in the magnetic field test box. According to the unfreezing device for improving the processing quality of the frozen meat, the unfreezing speed can be increased, the unfreezing efficiency can be improved, the influence on the subsequent eating taste is avoided, the magnetic field technology is applied to the meat protein treatment process, the interaction between water molecules and protein is accelerated through the magnetic field, and the meat protein treatment quality is improved. The effect of treating meat protein is improved, and the processing characteristics of frozen meat are improved.

Description

Technical Field

[0001] The invention relates to the technical field of meat processing, and in particular to a thawing device for improving the processing quality of frozen meat. Background Art

[0002] Some meat products currently sold on the market can generally be divided into three types: hot fresh meat, chilled fresh meat, and frozen meat. Frozen meat refers to meat that is stored at low temperatures and subjected to acid removal treatment. "Frozen meat" of better quality has strict requirements for its storage temperature. The shelf life of frozen meat depends on factors such as the storage temperature, packaging method, type of meat, fat-to-lean ratio, etc. The lower the storage temperature, the better the protection of the meat quality. Freezing is the main way to store meat, but freezing will cause large and uneven ice crystals to form in the intercellular spaces in meat tissue, damage muscle tissue, induce protein denaturation in meat products, and cause deterioration of water holding capacity, color, texture and other properties of meat products, resulting in economic losses.

[0003] Current research suggests that magnetic fields can reorient water molecules, break or distort the angle of hydrogen bonds, and thus weaken or destroy the hydrogen bond network structure inside the clusters, causing larger water molecule clusters to break into smaller, more stable clusters and release free water molecules. This characteristic of the magnetic field is applied to the freezing process of meat, which can inhibit the phase change of water molecules and slow down the recrystallization of ice during the freezing process.

[0004] In the thawing process of existing frozen meat, the frozen meat is directly put into cold water or hot water for thawing, which has low thawing efficiency, and hot water will cause the surface of the frozen meat to mature, affecting the taste of subsequent consumption. In addition, the protein in the frozen meat is partially denatured due to the influence of ice crystals in the freezing environment for a long time, the protein space structure is destroyed, and functional groups such as sulfhydryl and carbonyl are oxidized to form covalent bonds, resulting in a decrease in the nutritional value of the frozen meat after thawing. The magnetic field technology is applied to the process of processing meat protein, and the magnetic field is used to accelerate the interaction between water molecules and protein, improve the effect of processing meat protein, and improve the processing characteristics of frozen meat. Therefore, a rapid thawing device for improving the processing quality of frozen meat is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a thawing device for improving the processing quality of frozen meat. The device can not only speed up the thawing speed and improve the thawing efficiency, but also will not cause the external ripening of the frozen meat, thereby avoiding affecting the taste of subsequent consumption. The magnetic field technology is applied to the process of processing meat protein, and the interaction between water molecules and protein is accelerated by the magnetic field, thereby improving the effect of processing meat protein and improving the processing characteristics of frozen meat.

[0006] To achieve the above-mentioned purpose, the present invention provides a thawing device for improving the processing quality of frozen meat, comprising a thawing box and a magnetic field test box, wherein a magnetic field test box is arranged on one side of the thawing box, a hot water tank is arranged on the top of the thawing box, a recovery water tank is arranged at the bottom thereof, the hot water tank and the recovery water tank are connected through a circulation pipe, a water supply pipe is arranged inside the thawing box, a plurality of parallel annular spray pipes are arranged at the bottom of the water supply pipe, a thawing tank is arranged inside the annular spray pipe, a thawing plate is arranged above the thawing tank, the thawing plate is movably connected to the water supply pipe, a collecting tank is arranged below the thawing tank, a filter screen is arranged in the collecting tank, and a Helmholtz coil is arranged inside the magnetic field test box.

[0007] Preferably, the water pipe is connected to the hot water tank through a connecting pipe, and the water pipe is connected to the annular spray pipe. A plurality of circumferentially distributed spray heads are provided inside the annular spray pipe, and the spray direction of the spray heads is toward the thawing tank.

[0008] Preferably, the thawing groove is hollowed out as a whole, and both ends of the thawing groove are respectively connected to the side walls of the thawing box.

[0009] Preferably, a connecting rod is provided at the bottom of the water pipe, a fixed plate is provided at the bottom end of the connecting rod, a first bevel gear rotatably connected is provided at the bottom of the fixed plate, a second bevel gear meshing with the first bevel gear is provided on one side of the first bevel gear, a rotating shaft is provided on one side of the second bevel gear, one end of the rotating shaft is connected to the second bevel gear, and the other end thereof passes through the side wall of the thawing box and extends to the outside of the thawing box, and a motor is provided at the end of the rotating shaft located outside the thawing box.

[0010] Preferably, an electric telescopic rod is provided at the bottom of the first bevel gear, a thawing plate is provided at the bottom of the electric telescopic rod, the thawing plate is provided with evenly distributed spherical grooves, and a rotatably connected rolling ball is provided in the spherical groove.

[0011] Preferably, a slide groove and a slider are provided on the telescopic end of the electric telescopic rod, the slider slides in the slide groove, a spring is provided on the top of the slider, one end of the spring is connected to the inner wall of the slide groove, and the other end is connected to the top of the slider, and the bottom of the slider is connected to the thawing plate.

[0012] Preferably, a heating tube is provided inside the side wall of the thawing box, a heat-insulating filler is provided between the heating tubes, a temperature sensor is provided inside the thawing box, and a control panel is provided outside the thawing box.

[0013] Preferably, the collecting tank is located at the bottom of the thawing box, and the bottom of the collecting tank is connected to the recovery water tank. The collecting tank is conical in design, which is wide at the top and narrow at the bottom, and both sides of the collecting tank are snap-fitted to the inner wall of the thawing box.

[0014] Preferably, an activated carbon adsorption layer and a deodorization layer are sequentially arranged in the recycling water tank from top to bottom, and a circulation pump is arranged on the circulation pipe.

[0015] Preferably, a stage is provided inside the magnetic field test box, and Helmholtz coils are provided around the inside of the magnetic field test box. The material of the magnetic field test box and the stage is one of non-magnetic austenitic stainless steel, fiberglass board, and epoxy resin.

[0016] The advantages and beneficial effects of the present invention using the above-mentioned thawing device for improving the processing quality of frozen meat are:

[0017] 1. The present invention has a simple structure, is easy to operate, and has a high thawing efficiency. By arranging an annular spray pipe around the thawing tank, the frozen meat in the thawing tank can be exposed to hot water flow all around, thereby improving the uniformity of thawing.

[0018] 2. The present invention arranges a thawing plate on the thawing tank, and the thawing plate moves downward to press the frozen meat in the thawing tank, so that the ice crystals inside the frozen meat are quickly dissolved, the thawing process is accelerated, and the thawing efficiency is improved.

[0019] 3. The present invention sets up a magnetic field test box and treats the thawed frozen meat with a magnetic field, which can increase the thiol content in the frozen meat protein, thereby improving the functional properties of the protein in the frozen meat and improving the processing quality of the frozen meat.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the external structure of a thawing device for improving the processing quality of frozen meat according to the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of a thawing device for improving the processing quality of frozen meat according to the present invention;

[0023] Figure 3 It is a side view of a thawing box in a thawing device for improving the processing quality of frozen meat according to the present invention;

[0024] Figure 4 It is a schematic diagram of a thawing tank in a thawing device for improving the processing quality of frozen meat according to the present invention;

[0025] Figure 5 It is a schematic diagram of a thawing plate in a thawing device for improving the processing quality of frozen meat according to the present invention;

[0026] Figure 6 The present invention is a schematic diagram of an annular spray pipe in a thawing device for improving the processing quality of frozen meat. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 1. Hot water tank; 2. Circulation pipe; 3. Motor; 4. Circulation pump; 5. Thawing box; 6. Recovery water tank; 7. Magnetic field test box; 8. Connecting pipe; 9. Water pipe; 10. Rotating shaft; 11. Thawing tank; 12. Second bevel gear; 13. Annular spray pipe; 14. Collecting tank; 15. Activated carbon adsorption layer; 16. Filter screen; 17. Deodorization layer; 18. Loading table; 19. Helmholtz coil; 20. Insulation filler; 21. Heating tube; 22. Connecting rod; 23. Spray head; 24. First bevel gear; 25. Spring; 26. Sliding block; 27. Rolling ball; 28. Thawing plate; 29. ​​Slide; 30. Electric telescopic rod; 31. Fixed plate. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Example 1

[0032] like Figure 1 As shown, a thawing device for improving the processing quality of frozen meat includes a thawing box 5 and a magnetic field test box 7. The magnetic field test box 7 is provided on one side of the thawing box 5. The thawing box 5 and the magnetic field test box 7 are both provided with a door. Figure 2 As shown, a Helmholtz coil 19 is provided inside the magnetic field test box 7, and Helmholtz coils 19 are provided around the inside of the magnetic field test box 7. A loading platform 18 is provided inside the magnetic field test box 7. The material of the magnetic field test box 7 and the loading platform 18 is one of non-magnetic austenitic stainless steel, glass fiber board, and epoxy resin. First, the frozen meat is thawed in the thawing box 5, and then the frozen meat is placed on the loading platform 18 of the magnetic field test box 7 for magnetic field treatment. The magnetic field strength in the magnetic field test box 7 is controlled to be 1-5mT, and the frozen meat is treated by the magnetic field in the magnetic field test box 7 for 10-40min.

[0033] A hot water tank 1 is provided on the top of the thawing box 5, and a recovery water tank 6 is provided at the bottom thereof. The hot water tank 1 and the recovery water tank 6 are connected through a circulation pipe 2. A water delivery pipe 9 is provided inside the thawing box 5, and the water delivery pipe 9 is connected to the hot water tank 1 through a connecting pipe 8. A plurality of parallel annular spray pipes 13 (such as Figure 6 As shown), the water delivery pipe 9 is connected to the annular spray pipe 13. Figure 3 As shown, a thawing tank 11 is arranged inside the annular spray pipe 13, and a plurality of circumferentially distributed spray heads 23 are arranged inside the annular spray pipe 13, and the spray direction of the spray heads 23 is toward the thawing tank 11. The frozen meat to be thawed is placed in the thawing tank 11, and the hot water in the hot water tank 1 enters the water pipe 9 through the connecting pipe 8. The hot water in the water pipe 9 is sprayed toward the frozen meat in the thawing tank 11 through the annular spray pipe 13 and the spray heads 23. There is a hot water flow around the frozen meat, which can be thawed evenly. A heating pipe 21 and a temperature sensor are arranged inside the hot water tank 1, and a temperature controller is arranged outside the hot water tank 1. The heating pipe 21 and the temperature sensor are connected to the temperature controller respectively. The temperature sensor transmits the temperature in the hot water tank 1 to the temperature controller. The temperature controller controls the heating of the heating pipe 21 to control the temperature of the hot water in the hot water tank 1 to maintain at 30-50°C, so as to avoid the surface of the frozen meat being cooked due to excessive temperature.

[0034] like Figure 4 As shown, the thawing tank 11 is hollowed out as a whole, so that hot water can be sprayed onto the frozen meat and flow downward into the collecting tank 14. Both ends of the thawing tank 11 are connected to the side walls of the thawing box 5 respectively.

[0035] A heating pipe 21 is provided in the side wall of the thawing box 5, a heat-insulating filler 20 is provided between the heating pipes 21, a temperature sensor (not shown) is provided inside the thawing box 5, and a control panel is provided outside the thawing box 5. The temperature sensor transmits the temperature inside the thawing box 5 to the control panel, and the control panel controls the heating of the heating pipe 21, thereby controlling the temperature inside the thawing box 5 to be 50-80°C.

[0036] A thawing plate 28 is provided above the thawing tank 11, and the thawing plate 28 is movably connected to the water pipe 9. A connecting rod 22 is provided at the bottom of the water pipe 9. A fixing plate 31 is provided at the bottom end of the connecting rod 22, and a first bevel gear 24 is provided at the bottom of the fixing plate 31 for rotational connection, a second bevel gear 12 meshing with the first bevel gear 24 is provided on one side of the first bevel gear 24, a rotating shaft 10 is provided on one side of the second bevel gear 12, one end of the rotating shaft 10 is connected to the second bevel gear 12, and the other end thereof penetrates the side wall of the thawing box 5 and extends to the outside of the thawing box 5, and a motor 3 is provided at one end of the rotating shaft 10 located outside the thawing box 5. The motor 3 rotates to control the rotating shaft 10 to rotate, and the rotating shaft 10 rotates to drive the second bevel gear 12 to rotate, thereby driving the first bevel gear 24 to rotate.

[0037] The bottom of the first bevel gear 24 is provided with an electric telescopic rod 30, which has a waterproof function and a thawing plate 28. Figure 5 As shown, the thawing plate 28 is provided with evenly distributed spherical grooves, and the spherical grooves are provided with rotatably connected rolling balls 27. The electric telescopic rod 30 drives the thawing plate 28 to move downward until the rolling balls 27 are in pressure contact with the surface of the frozen meat, and the first bevel gear 24 rotates to drive the electric telescopic rod 30 to rotate, thereby driving the thawing plate 28 to rotate, and the rolling balls 27 on the thawing plate 28 roll on the surface of the frozen meat, simulating kneading of the frozen meat, which can destroy the ice crystals inside the frozen meat and accelerate the thawing process.

[0038] A slide groove 29 and a slider 26 are provided on the telescopic end of the electric telescopic rod 30. The slider 26 slides in the slide groove 29. A spring 25 is provided on the top of the slider 26. One end of the spring 25 is connected to the inner wall of the slide groove 29, and the other end is connected to the top of the slider 26. The bottom of the slider 26 is connected to the thawing plate 28. The slide groove 29, the slider 26, and the spring 25 play a role in buffering the pressure of the thawing plate 28 on the frozen meat when it rotates, and buffering the pressure applied by the rolling ball 27 of the thawing plate 28 on the surface of the frozen meat when it rotates, so as to avoid damaging the appearance of the frozen meat.

[0039] A collecting tank 14 is provided below the thawing tank 11, and a filter screen 16 is provided in the collecting tank 14. The collecting tank 14 is located at the bottom of the thawing box 5, and the bottom of the collecting tank 14 is connected to the recovery water tank 6. The collecting tank 14 is designed to be wide at the top and narrow at the bottom. Both sides of the collecting tank 14 are clamped with the inner wall of the thawing box 5, and the clamping structure is a prior art. The collecting tank 14 is detachably connected to the thawing box 5, which is convenient for cleaning the filter screen 16 and the collecting tank 14. The recovery water tank 6 is provided with an activated carbon adsorption layer 15 and a deodorizing layer 17 from top to bottom, and a circulation pump 4 is provided on the circulation pipe 2. The hot water flow from the thawing tank 11 enters the collecting tank 14, and the filter screen 16 filters the impurities flushed by the hot water flow. The filtered hot water flow enters the recovery water tank 6, and the hot water flow is purified by the activated carbon adsorption layer 15 and the deodorizing layer 17, enters the recovery water tank 6, and then enters the hot water tank 1 through the circulation pipe 2 to be reheated and used.

[0040] When in use, the temperature in the thawing box 5 is set by the control panel, and the temperature in the hot water tank 1 is set. After reaching the temperature, the frozen meat to be thawed is placed in the thawing tank 11, and the hot water flow in the hot water tank 1 is sprayed uniformly around the frozen meat through the annular spray pipe 13, so that the frozen meat is thawed uniformly. After thawing for a period of time, under the dual heating of the hot water flow and the thawing box 5, the surface of the frozen meat is thawed quickly. When the surface of the frozen meat is thawed to a certain extent but not completely thawed, the thawing plate 28 is moved down by the electric telescopic rod 30 until the rolling ball 27 on the thawing plate 28 is in pressure contact with the surface of the frozen meat, and the motor 3 is started to drive the thawing plate 28 to rotate, and the rolling ball 27 rotates on the surface of the frozen meat to destroy the ice crystals inside the frozen meat, accelerate thawing, and improve thawing efficiency. After thawing is completed, the heating components all stop heating, the electric telescopic rod 30 is reset, the motor 3 is stopped, and the meat is taken out and placed in the magnetic field test box 7 for magnetic field treatment.

[0041] The frozen meat treated by magnetic field was subjected to pH-shifting treatment and salt-soluble myofibrillar protein in the treated protein was extracted, which was set as the experimental group. The frozen meat thawed at room temperature without magnetic field treatment under the same conditions as the experimental group was subjected to pH-shifting treatment and salt-soluble myofibrillar protein in the treated protein was extracted, which was set as the control group. The total thiol content of myofibrillar protein in different treatment groups was measured respectively. The total thiol content of the experimental group was 46 μmol / g, and the total thiol content of the control group was 38 μmol / g, indicating that the thawing device of the present invention applied magnetic field technology to improve the processing characteristics of frozen meat.

[0042] Therefore, the present invention adopts the above-mentioned thawing device to improve the processing quality of frozen meat. The device can not only speed up the thawing speed and improve the thawing efficiency, but also will not cause the external ripening of the frozen meat, thereby avoiding affecting the taste of subsequent consumption. The magnetic field technology is applied to the process of processing meat protein. The magnetic field accelerates the interaction between water molecules and protein, thereby improving the effect of processing meat protein and improving the processing characteristics of frozen meat.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A thawing device for improving the processing quality of frozen meat, characterized in that: It includes a thawing box and a magnetic field test box. The magnetic field test box is arranged on one side of the thawing box, a hot water tank is arranged on the top of the thawing box, and a recovery water tank is arranged at the bottom. The hot water tank and the recovery water tank are connected through a circulation pipe. A water pipe is arranged inside the thawing box, and a plurality of parallel annular spray pipes are arranged at the bottom of the water pipe. A thawing tank is arranged inside the annular spray pipe. A thawing plate is arranged above the thawing tank, and the thawing plate is movably connected to the water pipe. A collecting tank is arranged below the thawing tank, and a filter is arranged in the collecting tank. A Helmholtz coil is arranged inside the magnetic field test box.

2. A thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: The water delivery pipe is connected to the hot water tank through a connecting pipe, and the water delivery pipe is connected to the annular spray pipe. A plurality of circumferentially distributed spray heads are arranged inside the annular spray pipe, and the spray direction of the spray heads is toward the thawing tank.

3. A thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: The thawing tank is hollowed out as a whole, and both ends of the thawing tank are respectively connected to the side walls of the thawing box.

4. A thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: A connecting rod is provided at the bottom of the water pipe, a fixed plate is provided at the bottom end of the connecting rod, a first bevel gear that is rotatably connected is provided at the bottom of the fixed plate, a second bevel gear that meshes with the first bevel gear is provided on one side of the first bevel gear, a rotating shaft is provided on one side of the second bevel gear, one end of the rotating shaft is connected to the second bevel gear, and the other end thereof passes through the side wall of the thawing box and extends to the outside of the thawing box, and a motor is provided at the end of the rotating shaft located outside the thawing box.

5. The thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: An electric telescopic rod is arranged at the bottom of the first bevel gear, a thawing plate is arranged at the bottom of the electric telescopic rod, evenly distributed spherical grooves are arranged on the thawing plate, and a rotatably connected rolling ball is arranged in the spherical groove.

6. A thawing device for improving the processing quality of frozen meat according to claim 5, characterized in that: A slide groove and a slider are provided on the output end of the electric telescopic rod. The slider slides in the slide groove. A spring is provided on the top of the slider. One end of the spring is connected to the inner wall of the slide groove, and the other end is connected to the top of the slider. The bottom of the slider is connected to the thawing plate.

7. The thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: A heating tube is arranged inside the side wall of the thawing box, a heat-insulating filler is arranged between the heating tubes, a temperature sensor is arranged inside the thawing box, and a control panel is arranged outside the thawing box.

8. The thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: The collecting tank is located at the bottom of the thawing box, and the bottom of the collecting tank is connected to the recovery water tank. The collecting tank is designed to be wide at the top and narrow at the bottom, and both sides of the collecting tank are clamped with the inner wall of the thawing box.

9. The thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: An activated carbon adsorption layer and a deodorization layer are arranged in sequence from top to bottom in the recovery water tank, and a circulation pump is arranged on the circulation pipe.

10. The thawing device for improving the processing quality of frozen meat according to claim 1, characterized in that: The magnetic field test box is provided with a loading platform inside, and Helmholtz coils are arranged around the inside of the magnetic field test box. The material of the magnetic field test box and the loading platform is one of non-magnetic austenitic stainless steel, glass fiber board, and epoxy resin.

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