A kind of immersion freezing equipment and method for meat industry

Abstract

The present invention relates to the technical field of food freezing, and provides an immersion freezing device and method for meat industry, wherein a freezing chamber is provided in a freezing and heat preservation box; the freezing chamber is matched with a placing box, a placing chamber is provided in the placing box, openings are provided below and on the right side of the placing chamber, and a first electric telescopic rod is connected to the top surface of the placing chamber; mounting plates are provided at the front and rear sides of the opening below the placing chamber, and a first conveyor belt is provided between the mounting plates; a round rod corresponding to the right side of the first conveyor belt is provided on the right side of the placing chamber, and the two ends of the round rod are respectively connected to the corresponding mounting plates; a first guide rod is provided on the right side of the placing chamber, a second guide rod is provided above the right side wall of the freezing and heat preservation box, one end of a support belt is rotatably sleeved on the round rod, and then connected to a winding device after passing the first guide rod and the second guide rod; a vertical fourth conveyor belt is provided at the left end of the placing chamber; and a corresponding second conveyor belt and a third conveyor belt are provided on the right side of the winding device. The present invention can perform immersion freezing better.

Description

Technical Field

[0001] The present invention relates to the technical field of food freezing, in particular to an immersion freezing device and method for meat industry. Background Art

[0002] With the development of society and modern cold chain logistics, freezing of meat has become the norm, and freezing can extend the shelf life of meat. However, traditional freezing technologies such as air freezing and plate freezing have low freezing efficiency. Large and uneven ice crystals will be produced during the freezing process of meat, causing serious damage to the organizational structure of the meat, reducing the edible quality and nutritional characteristics of the meat. In addition, during the freezing process, the meat will freeze on the freezing equipment, which is not conducive to automated production.

[0003] Immersion freezing is a method that uses the efficient thermal conductivity of liquid media to freeze samples quickly. Immersion freezing can shorten the freezing time of meat, produce smaller and more evenly distributed ice crystals, reduce the damage of ice crystals to meat cell tissue, reduce the outflow of cell fluid, greatly maintain the original quality of meat, and achieve high-quality preservation of meat. At the same time, due to the isolation of the refrigerant, immersion freezing can reduce the risk of meat adhering to freezing equipment during freezing, which is helpful for the transportation of meat.

[0004] Patent announcement number CN1224321C "Food Freezing Method and Freezing Device" discloses a food freezing method and freezing device. Among them: an electric field is established in the antifreeze to perform freezing. A food freezing device comprises: a freezing tank for containing antifreeze; an antifreeze driving part driven by a motor arranged in the freezing tank; a motor-driven frozen object lifting part that supports the frozen food and immerses it in the antifreeze in the freezing tank; a motor-driven refrigerator for cooling the antifreeze, characterized in that: its structure is: a high-potential electric field generating device is provided to establish an electric field in the antifreeze, the entire device is supported in an electrically insulated manner relative to the floor, and each of the above-mentioned motors is supported on the mounting part in an electrically insulated manner, and at the same time, the power of the motor is output through an electrically insulating belt.

[0005] Patent announcement number CN100419354C "Fast food freezing method using freezing liquid as freezing medium and device used therein" discloses a fast food freezing method using freezing liquid as freezing medium and device used therein, wherein the device used in the method is as follows: the immersion freezing device has a freezing box for freezing freezing liquid, a conveyor belt for conveying isolated food, a workbench panel for performing isolation operation, and a basket for holding food for cooperative isolation. The spray freezing device has a freezing box for freezing freezing liquid, a conveyor belt for conveying isolated food, a basket for holding food for cooperative isolation, and a spray head for freezing liquid above the conveyor belt.

[0006] Patent announcement number CN104905382B "A method and device for freezing dough with variable frequency ultrasound" discloses a method and device for freezing dough with variable frequency ultrasound, comprising the following steps: (1) fermenting the dough; (2) immersing and freezing the fermented dough, wherein the temperature of the freezing circulation fluid is -20°C to -25°C; during the immersion freezing process, when the center temperature of the dough reaches -1°C to -3°C, activating ultrasound with a frequency of 60kHz to 80kHz to assist freezing; when the center temperature of the dough reaches -3°C to -5°C, activating ultrasound with a frequency of 20kHz to 50kHz to assist freezing, until the center temperature of the dough reaches -18°C, stopping ultrasound, stopping immersion, and refrigerating the dough.

[0007] Patent announcement number CN113513878B "A quick freezing system for frozen food and a method for preparing a freezing liquid for the system" discloses a quick freezing system for frozen food and a method for preparing a freezing liquid for the system, which relates to the technical field of food freezing and preservation. The system includes a quick freezing refrigeration unit and a terminal quick freezing device; the quick freezing refrigeration unit provides low-temperature freezing liquid for the terminal quick freezing device, and the terminal quick freezing device exchanges the cold of the freezing liquid with the heat of the food. A jet nozzle is arranged in the terminal quick freezing device, which intensifies the disturbance of the liquid inside the freezing tank and makes the freezing liquid temperature more uniform; the quick freezing system uses a newly prepared nano-composite freezing liquid to ensure the fine ice crystal structure in the food, retain the original nutritional components of the food, and do not affect the flavor and taste of the food.

[0008] Patent announcement number CN217402931U "A meat product ultrasonic immersion freezing device" discloses a meat product ultrasonic immersion freezing device, which includes: a base, a freezer box and a mounting frame fixedly installed on the top of the base, the mounting frame is located on one side of the freezer box, a box cover is arranged on the top of the freezer box, four mounting rods are fixedly installed on the bottom of the box cover, a material frame is fixedly installed on the bottom of the box cover through the four mounting rods, the material frame is located inside the freezer box, a threaded shaft is movably installed on the inner side of the mounting frame, an internal threaded sleeve is threadedly installed on the threaded shaft, a connecting seat is fixedly installed on one side of the internal threaded sleeve, a support rod is fixedly installed on the top of the connecting seat, and the top of the support rod is fixedly connected to the box cover. The utility model provides a series of structures to make the device easy to load and unload and fix multiple moving wheels at the same time during actual use.

[0009] Patent announcement number CN209758866U "A cargo transport device for an immersion freezing system" discloses a cargo transport device for an immersion freezing system, the cargo transport device comprising a lifting mechanism, a guide rail, a cargo rack and an automatic control mechanism; the lifting mechanism comprises a horizontally movable pulley, a lifting mechanism and a grabber; the horizontally movable pulley is arranged on the guide rail, and a motor and a motor drive controller are arranged on the horizontally movable pulley; the lifting mechanism comprises a lifting motor, a lifting frame and a steel cable, and the grabber is arranged under the lifting mechanism for grabbing the cargo rack; the automatic control mechanism comprises a motor control device, a positioning device and a timing management device.

[0010] Patent announcement number CN115005259B "An ultrasonic rapid freezing device and method for meat industry" discloses an ultrasonic rapid freezing device and method for meat industry, wherein a placement cavity is provided in the device body, a first electric telescopic rod is provided in the placement cavity, a material receiving plate is provided at the bottom end of the first electric telescopic rod, a movable plate is connected to the material receiving plate, and the movable plate is driven to rotate by a motor; a first conveyor belt is provided in the device body, a second conveyor belt is matched at the inner end of the first conveyor belt, the second conveyor belt is located on a mounting frame, a second electric telescopic rod is connected to the bottom end of the mounting frame, a moving block is connected to the bottom end of the second electric telescopic rod, a roller at the bottom end of the moving block is located in a track, the track is located on the top surface of the support block, a third electric telescopic rod is fixedly installed on the support block, and the third electric telescopic rod is connected to the side of the moving block; a third conveyor belt is provided below the first conveyor belt. The present invention can conveniently and stably transfer the bagged meat products to the placement cavity for freezing, and can also conveniently and stably transfer the bagged meat products out.

[0011] Patent announcement number CN110402999B "Ultrasonic immersion quick freezing equipment for aquatic product processing" discloses an ultrasonic immersion quick freezing equipment for aquatic product processing, which can pre-freeze aquatic products, reduce the impact of the aquatic product on the refrigerant temperature after the aquatic product is introduced into the refrigerant, thereby improving the efficiency and effect of freezing the aquatic products and providing practicality; and can clean the impurities in the refrigerant to ensure the use effect of the refrigerant and improve the reliability of use; including an insulation box, a refrigeration system and an ultrasonic generator, a refrigeration coil is arranged inside the insulation box, an ultrasonic transducer is arranged at the bottom of the placement cavity, a mesh frame is arranged in the middle of the placement cavity, and a take-in and put-out port is arranged at the top of the insulation box; it also includes four groups of pillars, a top plate, a first mounting plate, a second mounting plate, a first cylinder, a second cylinder, a spray pump, a cleaning box, a connecting pipe, a first lifting rod, a second lifting rod, a front spray pipe, a rear spray pipe, a front spray head, a rear spray head, a circulating pump and a filter.

[0012] Patent application publication number CN110608579A "Intelligent immersion multifunctional single spiral cold fast precooling and quick freezing equipment" discloses an intelligent immersion multifunctional single spiral cold fast precooling and quick freezing equipment, including a freezer and a conveying mechanism. The freezer is filled with food-grade cold liquid. The conveying mechanism is composed of a single spiral conveyor belt, and its main spiral structure is inside the freezer. The conveyor belt is provided with an inlet and an outlet. The outlet and the last layer at the bottom of the spiral structure are connected with a circulating continuous elevator. There is an insulation layer outside the freezer, and an evaporator connected to the refrigeration unit is provided inside the box. The freezer is filled with food-grade low-temperature cold liquid, and the food enters the freezer through the conveying mechanism. The cold amount transmitted to the evaporator by the refrigeration unit is used to quickly precool or freeze the food through the cold liquid.

[0013] Patent application publication number CN109007531A "Brine immersion freezing device for food rapid freezing" discloses a brine immersion freezing device for food rapid freezing, including: a brine chamber, a heat-insulating cotton layer, a brine water supply tank, a heat-conducting plate and a food placement cylinder; a step groove is provided at the upper end of the brine chamber and the inner wall of the device body, the heat-conducting plate is installed at the top of the step groove, and a food placement cylinder is provided at the bottom of the heat-conducting plate, and the bottom side of the device body is also provided with a front-to-back transparent cavity, and the brine water supply tank and the refrigeration device are both installed in the cavity, and a brine pump is provided in the brine water supply tank, and the water outlet of the brine pump is connected to an upper water pipe, and the upper water pipe penetrates upward into the brine chamber. Put the food to be frozen into the food placement cylinder, the food does not directly contact with high-concentration low-temperature brine, and the quality of the food can be guaranteed. The food placement cylinders of different sizes can be used to place food of different sizes, and the food placement cylinder extends into the interior of the brine chamber to improve the effect of food immersion freezing in the food placement cylinder.

[0014] Patent application publication number CN109798684A "An indirect refrigeration system for immersion freezing" discloses an indirect refrigeration system for immersion freezing, the indirect refrigeration system comprising a first refrigeration cycle system and an immersion freezing cycle system, the first refrigeration cycle system comprising a main refrigeration unit, an evaporative condenser and a main refrigeration unit heat exchanger, the immersion freezing cycle system comprising a cold water storage tank, a freezing pump, an immersion freezing tank and a circulating pump; the main refrigeration unit uses a single-unit two-stage screw compressor, and the main refrigeration unit heat exchanger is completely immersed in the cold water storage tank; the immersion freezing cycle system uses a refrigerant containing a water-dispersible polyisocyanate.

[0015] Patent application publication number CN115183530A "A freezing tank, quick-freezing equipment and control method" discloses a freezing tank, quick-freezing equipment and control method, the freezing tank includes a freezing outer tank, a freezing inner tank, a conveying mechanism, a pressing plate and a lifting mechanism; the freezing inner tank is arranged in the freezing outer tank, the conveying mechanism is connected to the freezing inner tank, the pressing plate covers the top of the freezing inner tank, the product to be frozen passes between the pressing plate and the conveying mechanism, and the pressing plate presses the product to be frozen completely into the freezing liquid; the lifting mechanism is used to adjust the height of the freezing inner tank so that the channel height between the pressing plate and the conveying mechanism changes accordingly; the quick-freezing equipment includes the freezing tank and refrigeration components as described above, the freezing tank of the quick-freezing equipment can make the product to be frozen completely invade the freezing liquid, and the product to be frozen can be quickly frozen without turning it over, thereby shortening the freezing time, improving production efficiency and reducing production costs. In the control method, the controller is communicatively connected with the refrigerator, water pump, liquid level sensor and temperature sensor to realize automatic operation.

[0016] The above-mentioned immersion freezing equipment, quick freezing equipment, rapid freezing equipment, freezing systems and freezing devices have the following problems: (1) Since the sample needs to be immersed in the refrigerant during freezing, the sample placement and removal requires manual operation, which is not conducive to industrial production. (2) The refrigerant on the surface of the sample is not recovered after immersion freezing. (3) Most immersion freezing equipment cannot be in direct contact with food. (4) Impurities in the refrigerant and the replenishment of the refrigerant components are not handled. Therefore, it is necessary to design an immersion freezing equipment and method for the meat industry to solve the above problems. Summary of the invention

[0017] The present invention provides an immersion freezing device and method for meat industry, which can better perform immersion freezing.

[0018] According to the present invention, an immersion freezing device for meat industry comprises a freezing and heat preservation box, a freezing chamber is provided in the freezing and heat preservation box, and a refrigerant is contained in the freezing chamber; the freezing chamber is matched with a placing box, and a placing chamber for placing meat is provided in the placing box, and the placing chamber is provided with openings below and on the right side, and a first electric telescopic rod is connected to the top surface of the placing chamber, and a rotating block is connected to the top end of the first electric telescopic rod, and the top end of the rotating block is rotatably connected to a connecting block, and the connecting block is installed at the bottom end of a top plate; the rotating block is driven by a first motor;

[0019] Mounting plates are respectively arranged at the front and rear sides of the lower opening of the placement chamber, and a first conveyor belt is arranged between the mounting plates; a round rod corresponding to the right side of the first conveyor belt is arranged at the lower right opening of the placement chamber, and both ends of the round rod are respectively connected to the corresponding mounting plates; a first guide rod is arranged at the upper right opening of the placement chamber, and a second guide rod is arranged above the right side wall of the refrigeration and incubation box, one end of a support belt is rotatably sleeved on the round rod, and then passes around the first guide rod and the second guide rod and is connected to a winding device; a vertical fourth conveyor belt is arranged at the left end of the placement chamber;

[0020] A support rod is provided below the winding device, a second electric telescopic rod that can be telescoped vertically is provided below the support rod, a support plate is provided below the second electric telescopic rod, a third electric telescopic rod that can be telescoped horizontally is provided on one side of the support plate, and the third electric telescopic rod is connected to a mounting block, and the mounting block is located on a mounting platform;

[0021] A corresponding second conveyor belt and a third conveyor belt are provided on the right side of the winding device. The second conveyor belt is used for feeding and its height is higher than the first guide rod; the third conveyor belt is used for discharging and its height is lower than the first guide rod.

[0022] Preferably, a refrigerant recovery pool is connected to the right side of the refrigerated insulated box, and the refrigerant recovery pool corresponds to the upper support belt up and down; a refrigerant insulation liquid storage tank is connected below the refrigerant recovery pool, and the top and bottom ends of the refrigerated insulated box are respectively connected to the refrigerant insulation liquid storage tank; a refrigerant replenishing port is provided on the refrigerant insulation liquid storage tank.

[0023] Preferably, an electric stirrer and a refrigeration system are provided in the coolant insulation storage tank.

[0024] Preferably, the bottom end of the refrigerated insulation box and the bottom of the coolant recovery tank are connected to the coolant insulation storage tank through a filter elbow, and a control valve and a filter membrane are provided on the filter elbow.

[0025] Preferably, the top of the refrigeration and insulated box is connected to the refrigerant insulation liquid storage tank through a refrigerant circulation pipe, and a refrigerant circulation pump is provided on the refrigerant circulation pipe.

[0026] Preferably, a mounting groove is provided on the right side wall of the refrigeration and insulated box, a fourth electric telescopic rod is provided in the mounting groove, and the top end of the fourth electric telescopic rod is connected to the second guide rod.

[0027] Preferably, the support belt includes two front and rear side belts, and a plurality of rollers are connected between the two side belts, and the diameter of the rollers is smaller than the height of the side belts;

[0028] An ultrasonic generating device is arranged in the freezing chamber, and a plurality of pillars are arranged respectively under the freezing and heat preservation box and under the mounting platform; a plurality of balls are arranged under the supporting plate, and the balls can roll on the mounting platform.

[0029] Preferably, the first conveyor belt is wound around two rotating shafts, the two rotating shafts are respectively connected between the mounting plates, one of the rotating shafts is connected to a second motor through a transmission belt, and the second motor is mounted on the top surface of the placement box;

[0030] The fourth conveyor belt is wound around two shafts, and the two shafts are respectively connected to the front and rear walls of the placement cavity. One of the shafts is driven by a third motor, and the third motor is installed on the top surface of the placement box.

[0031] The present invention provides an immersion freezing method for meat industry, which adopts the above-mentioned immersion freezing equipment for meat industry and comprises the following steps:

[0032] 1. Raise the winding device so that it corresponds to the second conveyor belt, raise the placement box to the highest position through the first electric telescopic rod, and tighten the support belt using the winding device while raising it;

[0033] Second, feed the meat through the second conveyor belt, and the conveyed meat slides from the support belt into the placement cavity in the freezing placement box, and then open the first conveyor belt to convey the meat that slides into the placement cavity to the left side of the placement cavity;

[0034] 3. The placing box is gradually lowered by the first electric telescopic rod, so that the conveyed meat is laid on the previous meat. At the same time, the meat is evenly placed by conveying the first conveyor belt and the fourth conveyor belt. The support belt is tightened by the winding device, and the support belt on the winding device is always corresponding to the second conveyor belt by the extension and contraction of the second electric telescopic rod and the third electric telescopic rod;

[0035] 4. When the meat is placed, the placing box has entered the freezing chamber of the freezing and heat preservation box to freeze the meat;

[0036] 5. After the freezing is completed, the winding device is lowered so that it corresponds to the third conveyor belt, and the supporting belt is tightened at the same time;

[0037] Sixth, the placement box is gradually raised by the first electric telescopic rod, so that the meat slides from the support belt to the third conveyor belt for discharge. While being raised, the meat is moved by the first conveyor belt and the fourth conveyor belt. The first motor drives the first electric telescopic rod to rotate, so that the placement box is tilted, the support belt is tightened or loosened by the winding device, and the support belt on the winding device is always corresponding to the third conveyor belt by the extension and contraction of the second electric telescopic rod and the third electric telescopic rod;

[0038] 7. After the unloading is completed, proceed to steps 1 to 6 to soak and freeze the next batch of meat.

[0039] Preferably, in step six, when the meat slides on the support belt above the coolant recovery pool, the coolant adhering to the meat will drip into the coolant recovery pool for recovery;

[0040] Before feeding and discharging, the fourth electric telescopic rod is telescoped to change the height of the second guide rod, thereby changing the angle of the support belt between the second guide rod and the first guide rod.

[0041] The beneficial effects of the present invention are as follows:

[0042] 1) The present invention allows the meat to be easily put into the freezing chamber for immersion freezing and completely immersed in the coolant through the flexible adjustment and application of the support belt, and also allows the meat to be easily transferred out after immersion freezing, thus saving time and labor.

[0043] 2) The present invention can recover the coolant adhering to the meat products, thus realizing the automated freezing production of the meat industry with high efficiency and speed.

[0044] 3) The present invention enables meat to be directly in contact with the refrigerant for freezing, thereby achieving the treatment of impurities in the refrigerant and replenishing the refrigerant components. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the three-dimensional structure of an immersion freezing device for meat industry in an embodiment;

[0046] Figure 2 It is a structural schematic diagram of the top plate in the embodiment;

[0047] Figure 3 It is a partial structural enlarged view of an immersion freezing device for meat industry in the embodiment;

[0048] Figure 4 It is a partial structural front view of an immersion and freezing device for meat industry in an embodiment;

[0049] Figure 5 It is a partial structural cross-sectional view of an immersion and freezing device for meat industry in an embodiment;

[0050] Figure 6 This is a schematic diagram of the three-dimensional structure of the placement box in the embodiment;

[0051] Figure 7 It is a schematic diagram of the structure of the coolant heat preservation liquid storage tank in the embodiment;

[0052] Figure 8 It is a structural schematic diagram of the filter elbow in the embodiment;

[0053] Fig. 9 It is a structural schematic diagram of the installation slot in the embodiment;

[0054] Fig.10 This is a schematic diagram of the top view of the support belt in the embodiment;

[0055] Fig.11 Schematic diagram of the cross-sectional structure of the support belt in the embodiment. DETAILED DESCRIPTION

[0056] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it. Example

[0057] like Figure 1-6 As shown, this embodiment provides an immersion freezing device for meat industry, which includes a freezing and heat preservation box 110, a freezing chamber 111 is provided in the freezing and heat preservation box 110, and a coolant is contained in the freezing chamber 111; the freezing chamber 111 is matched with a placement box 120, and a placement chamber 121 for placing meat is provided in the placement box 120, and the placement chamber 121 is provided with openings below and on the right side, and a first electric telescopic rod 122 is connected to the top surface of the placement chamber 121, and a rotating block 320 is connected to the top of the first electric telescopic rod 122, and the top of the rotating block 320 is rotatably connected to a connecting block 310, and the connecting block 310 is installed at the bottom end of a top plate 1221; the rotating block 320 is driven by a first motor; and the top plate 1221 can be installed on the roof;

[0058] Mounting plates 123 are respectively provided at the front and rear sides of the lower opening of the placement chamber 121, and a first conveyor belt 130 is provided between the mounting plates 123; a round rod 141 corresponding to the right side of the first conveyor belt 130 is provided at the lower right opening of the placement chamber 121, and both ends of the round rod 141 are respectively connected to the corresponding mounting plates 123; a first guide rod 142 is provided at the upper right opening of the placement chamber 121, and a second guide rod 143 is provided above the right side wall of the refrigeration and incubation box 110, and one end of a support belt 144 is rotatably sleeved on the round rod 141, and then passes around the first guide rod 142 and the second guide rod 143 and is connected to a winding device 150; a vertical fourth conveyor belt 410 is provided at the left end of the placement chamber 121;

[0059] A support rod 151 is provided below the winding device 150, a second electric telescopic rod 152 that can be telescoped vertically is provided below the support rod 151, a support plate 153 is provided below the second electric telescopic rod 152, a third electric telescopic rod 154 that can be telescoped horizontally is provided on one side of the support plate 153, and the third electric telescopic rod 154 is connected to a mounting block 1551, and the mounting block 1551 is located on a mounting platform 155;

[0060] A corresponding second conveyor belt 161 and a third conveyor belt 162 are provided on the right side of the winding device 150 . The second conveyor belt 161 is used for feeding and its height is higher than the first guide rod 142 ; the third conveyor belt 162 is used for discharging and its height is lower than the first guide rod 142 .

[0061] The first electric telescopic rod 122 can be raised and lowered to allow the placement box 120 to enter and exit the freezing and insulated box 110, so that the meat in the placement box 120 can be conveniently placed in the freezing and insulated box 110 for immersion freezing, and can also be conveniently placed out. When the placement box 120 enters the freezing and insulated box 110, it will drive the support belt 144 to enter, and the support belt 144 will block the right opening of the placement cavity 121, so that the meat is blocked in the placement cavity 121 to prevent the meat from leaving the placement cavity 121.

[0062] Another function of the support belt 144 is to make the meat slide into the placement chamber 121 or slide out of the placement chamber 121. When the winding device 150 corresponds to the second conveyor belt 161, the meat can slide into the placement chamber 121 conveniently. When the winding device 150 corresponds to the third conveyor belt 162, the meat can slide out of the placement chamber 121 conveniently (through the rise of the placement chamber 121, the upper layer of meat will fall from the right opening of the placement chamber 121 onto the support belt 144 after no longer being blocked by the support belt 144, and then slide onto the third conveyor belt 162). When sliding in or out, the placement box 120 rises or falls a certain distance, and then the meat that can enter is placed fully, or the meat that can come out is processed, and then the next step of lifting and lowering is performed.

[0063] The function of the first conveyor belt 130 and the second conveyor belt 410 is to move the meat in the placement chamber 121, so that it can be placed more evenly and it is also convenient for the meat to come out. When the meat slides into the placement chamber 121, it will be stacked at the right end of the placement chamber 121. Therefore, the first conveyor belt 130 brings the meat at the right end of the placement chamber 121 to the left end. Then, the first conveyor belt 130 and the second conveyor belt 410 cooperate to place the meat evenly. When sliding out, the cooperation of the first conveyor belt 130 and the second conveyor belt 410 allows the meat to slide out of the placement chamber 121 conveniently. The setting of the first conveyor belt 130 makes it very convenient for the meat to enter and exit. Moreover, the placement chamber 121 is open at the bottom, and the first conveyor belt 130 can block the meat to prevent the meat from leaving the placement chamber 121. In addition, there is a gap between the first conveyor belt 130 and the bottom of the placement chamber 121, so that the coolant in the freezing chamber 111 can enter the placement chamber 121. During the sliding out process, when the support belt 144 rises with the placement box 120, the support belt 144 no longer blocks the meat at the top. Due to gravity and the effects of the first conveyor belt 130 and the second conveyor belt 410, the meat falls onto the support belt 144 and then slides away.

[0064] The first motor can drive the rotating block 320 to rotate, thereby driving the placement box 120 to rotate and causing the placement box 120 to tilt. Therefore, when the meat comes out, the meat is more likely to fall from the tilted placement box 120 onto the support belt 144.

[0065] The function of the winding device 150 is to tension the support belt 144, because the lifting and lowering of the placement box 120 will cause the required length of the support belt 144 to change. By rolling and unwinding the winding device 150, the length of the support belt 144 can be adjusted better, and during the tensioning process, the support belt 144 will also vibrate, which is convenient for the sliding of the meat. However, when the winding device 150 adjusts the support belt 144, the winding thickness will change, so that the position of the support belt 144 at the winding device 150 cannot be better matched with the second conveyor belt 161 or the third conveyor belt 162 (the position interval is too far, and the meat cannot be better transported). Therefore, through the horizontal adjustment of the third electric telescopic rod 154, combined with the vertical adjustment of the second electric telescopic rod 152, the position of the winding device 150 can be better adjusted so that it can always correspond to the second conveyor belt 161 or the third conveyor belt 162. Of course, adjusting the position will cause a change in the tension of the support belt 144, so when adjusting the position, winding adjustment is also required to keep the support belt 144 in a tensioned state at all times.

[0066] A refrigerant recovery tank 170 is connected to the right side of the refrigerated insulated box 110, and the refrigerant recovery tank 170 corresponds to the upper support belt 144 above; a refrigerant insulation liquid storage tank 180 is connected below the refrigerant recovery tank 170, and the top and bottom ends of the refrigerated insulated box 110 are respectively connected to the refrigerant insulation liquid storage tank 180; a refrigerant replenishing port is provided on the refrigerant insulation liquid storage tank 180.

[0067] When the meat slides on the support belt 144 above the refrigerant recovery tank 170, the refrigerant adhering to the meat will drip into the refrigerant recovery tank 170 for recovery, and the refrigerant recovered by the refrigerant recovery tank 170 will flow into the refrigerant insulation storage tank 180, so that the refrigerant is recycled and energy is saved. The refrigerant insulation storage tank 180 is connected to the top and bottom ends of the freezing and insulated box 110, so that a circulation loop is formed to replenish and replace the refrigerant in the freezing and insulated box 110. In addition, a refrigerant replenishing port is provided on the refrigerant insulation storage tank 180, and the refrigerant is replenished through the refrigerant replenishing port, because the refrigerant will transfer mass with the meat, so that the components in the refrigerant are reduced, so the refrigerant needs to be replenished.

[0068] like Figure 7 As shown, an electric stirrer 181 and a refrigeration system 182 are provided in the coolant insulation storage tank 180.

[0069] The coolant in the coolant heat preservation reservoir 180 is cooled by the refrigeration system 182. The electric stirrer 181 can stir and dissolve the coolant components.

[0070] like Figure 8As shown, the bottom end of the refrigeration and insulation box 110 and the lower part of the coolant recovery tank 170 are connected to the coolant insulation liquid storage tank 180 through a filter elbow 190, and a control valve 191 and a filter membrane 192 are provided on the filter elbow 190.

[0071] The filter membrane 192 in the filter elbow 190 can filter and collect impurities in the coolant, and can be cleaned by removing the filter elbow 190. When the filter membrane 192 in the filter elbow 190 is damaged or the filtering effect is poor, it can be replaced.

[0072] The top end of the refrigeration and insulated box 110 is connected to the brine heat preservation liquid storage tank 180 through a brine circulation pipe 200 , and a brine circulation pump 201 is provided on the brine circulation pipe 200 .

[0073] The brine in the brine heat preservation liquid storage tank 180 can be transported from the brine flow pipe 200 to the refrigeration and heat preservation box 110 through the brine circulation pump 201 to replenish and replace the brine.

[0074] like Fig. 9 As shown, a mounting groove 112 is provided on the right side wall of the freezing and insulated box 110 , and a fourth electric telescopic rod 113 is provided in the mounting groove 112 . The top end of the fourth electric telescopic rod 113 is connected to the second guide rod 143 .

[0075] The fourth electric telescopic rod 113 can adjust the height of the second guide rod 143, so that the inclination of the support belt 144 between the second guide rod 143 and the first guide rod 142 can be adjusted to facilitate the sliding of meat.

[0076] like Fig.10 and Fig.11 As shown, the support belt 144 includes two front and rear side belts 1441, and a plurality of rollers 1442 are connected between the two side belts 1441, and the diameter of the rollers 1442 is smaller than the height of the side belts 1441;

[0077] An ultrasonic generator 1111 is provided in the freezing chamber 111, and a plurality of pillars 210 are provided under the freezing and heat preservation box 110 and under the mounting platform 155, respectively; a plurality of balls are provided under the support plate 153, and the balls can roll on the mounting platform 155. The pillars 210 are used for support, and the ball support can facilitate the horizontal movement of the support plate 153.

[0078] The structure of the support belt 144 facilitates the sliding of the meat, and the diameter of the roller 1442 is smaller than the height of the side belt 1441, so that the meat can be blocked and prevented from deviating from the support belt 144. In order to further prevent the meat from deviating from the support belt 144, baffles can be set on both sides of the support belt 144 to block the meat, so that the meat will not deviate from the support belt 144. In order to prevent too much meat from falling on the support belt 144 at one time, a flow limiting device can be set on the support belt 144 to temporarily store the excess meat.

[0079] When meat is immersed and frozen, impurities will penetrate into the coolant. The ultrasonic generator 1111 prevents the impurities from gathering at the bottom of the freezing chamber 111. The coolant circulation pump 201 circulates the coolant. When the coolant passes through the filter elbow 190, it can pass through the filter membrane 192 so that the impurities are collected in the filter elbow 190. Then, the filter elbow 190 is disassembled to process the impurities or the filter elbow 190 is replaced.

[0080] The first conveyor belt 130 is wound around two rotating shafts 131 , and the two rotating shafts 131 are respectively connected between the mounting plates 123 , wherein one of the rotating shafts 131 is connected to a second motor 133 via a transmission belt 132 , and the second motor 133 is mounted on the top surface of the placement box 120 .

[0081] The fourth conveyor belt 410 is wound around two shafts 411 , which are respectively connected to the front and rear walls of the placement chamber 121 , and one of the shafts 411 is driven by a third motor, which is installed on the top surface of the placement box 120 .

[0082] The first conveyor belt 130 is driven by the second motor 133. Since the second motor 133 is arranged on the top surface of the storage box 120, it is not easy to contact the coolant, which can increase the service life of the second motor 120. The third motor is installed on the top surface of the storage box 120, and it is not easy to contact the coolant, which can increase the service life of the third motor.

[0083] This embodiment provides an immersion freezing method for meat industry, which adopts the above-mentioned immersion freezing equipment for meat industry and includes the following steps:

[0084] 1. Raise the winding device 150 so that it corresponds to the second conveyor belt 161, raise the placement box 120 to the highest position through the first electric telescopic rod 122, and tighten the support belt 144 by using the winding device 150 while raising it;

[0085] Second, feed the meat through the second conveyor belt 161, and the conveyed meat slides from the support belt 144 into the placement cavity 121 in the placement box 120, and then the first conveyor belt 130 is opened to convey the meat that slides into the placement cavity 121 to the left side of the placement cavity 121;

[0086] 3. The placing box 120 is gradually lowered by the first electric telescopic rod 122 (the placing box 120 is lowered for a certain distance, and then the meat that can enter is placed full, or the meat that can come out is processed, and then the next step of lowering is carried out), so that the conveyed meat is spread on the previous meat, and at the same time, the meat is evenly placed through the conveyance of the first conveyor belt 130 and the fourth conveyor belt 410, and the support belt 144 is tightened by the winding device 150, and the support belt 144 on the winding device 150 is always corresponding to the second conveyor belt 161 through the extension and contraction of the second electric telescopic rod 152 and the third electric telescopic rod 154;

[0087] 4. When the meat is placed, the placing box 120 has entered the freezing chamber 111 in the freezing and heat preservation box 110 to freeze the meat;

[0088] 5. After the freezing is completed, the winding device 150 is lowered so that it corresponds to the third conveyor belt 162, and the support belt 144 is tightened;

[0089] Sixth, the placing box 120 is gradually raised by the first electric telescopic rod 122 (the placing box 120 is raised for a certain distance, and then the meat that can be taken out is processed and then raised to the next step), so that the meat slides from the support belt 144 to the third conveyor belt 162 for unloading. While being raised, the meat is moved by the conveyance of the first conveyor belt 130 and the fourth conveyor belt 410, and the first electric telescopic rod 122 is driven to rotate by the first motor to tilt the placing box 120, and the supporting belt 144 is tightened or loosened by the winding device 150, and the supporting belt 144 on the winding device 150 is always corresponding to the third conveyor belt 162 by the extension and contraction of the second electric telescopic rod 152 and the third electric telescopic rod 154;

[0090] 7. After the unloading is completed, proceed to steps 1 to 6 to soak and freeze the next batch of meat.

[0091] In step 6, when the meat slides on the support belt 144 above the coolant recovery tank 170, the coolant adhering to the meat will drip into the coolant recovery tank 170 for recovery;

[0092] Before feeding and discharging, the fourth electric telescopic rod 113 is telescoped to change the height of the second guide rod 143 , thereby changing the angle of the support belt 144 between the second guide rod 143 and the first guide rod 142 .

[0093] The method can better transfer the meat into the coolant for immersion freezing and completely immerse the meat in the coolant, and can also better transfer the meat after immersion freezing, thus saving time and labor.

[0094] The accompanying drawings can intuitively reflect the structure of this embodiment. In practical applications, those skilled in the art can adjust the structural proportions and sizes according to actual conditions for better use.

[0095] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. An immersion freezing device for meat industry, characterized in that: The invention comprises a freezing and heat preservation box (110), wherein a freezing chamber (111) is provided in the freezing and heat preservation box (110), and a cooling agent is contained in the freezing chamber (111); the freezing chamber (111) is matched with a placing box (120), wherein a placing chamber (121) for placing meat is provided in the placing box (120), and openings are arranged at the bottom and right side of the placing chamber (121); a first electric telescopic rod (122) is connected to the top surface of the placing chamber (121), and a rotating block (320) is connected to the top end of the first electric telescopic rod (122); the top end of the rotating block (320) is rotatably connected to a connecting block (310), and the connecting block (310) is mounted at the bottom end of a top plate (1221); the rotating block (320) is driven by a first motor; Mounting plates (123) are respectively provided at the front and rear sides of the lower opening of the placement chamber (121), and a first conveyor belt (130) is provided between the mounting plates (123); a round rod (141) corresponding to the right side of the first conveyor belt (130) is provided at the lower right opening of the placement chamber (121), and both ends of the round rod (141) are respectively connected to the corresponding mounting plates (123); a first guide rod (142) is provided at the upper right opening of the placement chamber (121), and a second guide rod (143) is provided above the right side wall of the freezing and incubation box (110); one end of a support belt (144) is rotatably sleeved on the round rod (141), and then passes around the first guide rod (142) and the second guide rod (143) and is connected to a winding device (150); a vertical fourth conveyor belt (410) is provided at the left end of the placement chamber (121); A support rod (151) is provided below the winding device (150); a second electric telescopic rod (152) that can be telescoped vertically is provided below the support rod (151); a support plate (153) is provided below the second electric telescopic rod (152); a third electric telescopic rod (154) that can be telescoped horizontally is provided on one side of the support plate (153); the third electric telescopic rod (154) is connected to a mounting block (1551); and the mounting block (1551) is located on a mounting platform (155); A second conveyor belt (161) and a third conveyor belt (162) are provided on the right side of the winding device (150) to cooperate with each other. The second conveyor belt (161) is used for feeding and is higher than the first guide rod (142); the third conveyor belt (162) is used for discharging and is lower than the first guide rod (142).

2. The immersion freezing equipment for meat industry according to claim 1, characterized in that: A refrigerant recovery pool (170) is connected to the right side of the refrigeration and thermal insulation box (110), and the refrigerant recovery pool (170) corresponds to the upper support belt (144) above; a refrigerant thermal insulation liquid storage pool (180) is connected below the refrigerant recovery pool (170), and the top and bottom ends of the refrigeration and thermal insulation box (110) are respectively connected to the refrigerant thermal insulation liquid storage pool (180).

3. The immersion freezing equipment for meat industry according to claim 2, characterized in that: An electric stirrer (181) and a refrigeration system (182) are provided in the coolant heat-insulating liquid storage tank (180).

4. The immersion freezing equipment for meat industry according to claim 3, characterized in that: The bottom end of the refrigeration and heat preservation box (110) and the lower part of the coolant recovery tank (170) are connected to the coolant heat preservation liquid storage tank (180) via a filter elbow (190), and a control valve (191) and a filter membrane (192) are provided on the filter elbow (190); and a coolant replenishing port is provided on the coolant heat preservation liquid storage tank (180).

5. The immersion freezing equipment for meat industry according to claim 4, characterized in that: The top end of the freezing and heat preservation box (110) is connected to the coolant heat preservation liquid storage tank (180) via a coolant circulation pipe (200), and a coolant circulation pump (201) is provided on the coolant circulation pipe (200).

6. The immersion freezing equipment for meat industry according to claim 5, characterized in that: A mounting groove (112) is provided on the right side wall of the freezing and heat preservation box (110), a fourth electric telescopic rod (113) is provided in the mounting groove (112), and a top end of the fourth electric telescopic rod (113) is connected to the second guide rod (143).

7. The immersion freezing equipment for meat industry according to claim 6, characterized in that: The support belt (144) comprises two front and rear side belts (1441), a plurality of rollers (1442) are connected between the two side belts (1441), and the diameter of the rollers (1442) is smaller than the height of the side belts (1441); An ultrasonic generating device (1111) is provided in the freezing chamber (111), and a plurality of pillars (210) are provided below the freezing and heat preservation box (110) and below the mounting platform (155), respectively; a plurality of balls are provided below the support plate (153), and the balls are capable of rolling on the mounting platform (155).

8. The immersion freezing equipment for meat industry according to claim 7, characterized in that: The first conveyor belt (130) is wound around two rotating shafts (131), and the two rotating shafts (131) are respectively connected between the mounting plates (123), one of the rotating shafts (131) is connected to a second motor (133) via a transmission belt (132), and the second motor (133) is mounted on the top surface of the placement box (120); The fourth conveyor belt (410) is wound around two shafts (411), and the two shafts (411) are respectively connected to the front and rear walls of the placement chamber (121), and one of the shafts (411) is driven by a third motor, and the third motor is installed on the top surface of the placement box (120).

9. A method for immersion freezing for meat industry, characterized in that: It adopts a meat industry immersion freezing equipment as described in any one of claims 1 to 8, and includes the following steps:

1. Raise the winding device (150) so that it corresponds to the second conveyor belt (161), raise the placement box (120) to the highest position by using the first electric telescopic rod (122), and tighten the support belt (144) by using the winding device (150) while raising the box; 2. Feeding the meat through the second conveyor belt (161), the conveyed meat slides from the support belt (144) into the placement cavity (121) in the freezing placement box (120), and then the first conveyor belt (130) is opened to convey the meat that has slid into the placement cavity (121) to the left side of the placement cavity (121); 3. The placement box (120) is gradually lowered by the first electric telescopic rod (122) so that the transported meat is laid on top of the previously placed meat. At the same time, the meat is evenly placed by the transport of the first conveyor belt (130) and the fourth conveyor belt (410). The support belt (144) is tightened by the winding device (150). The support belt (144) on the winding device (150) is always aligned with the second conveyor belt (161) by the extension and retraction of the second electric telescopic rod (152) and the third electric telescopic rod (154); 4. When the meat is placed, the placing box (120) has entered the freezing chamber (111) in the freezing and heat preservation box (110) to freeze the meat; 5. After the freezing is completed, the winding device (150) is lowered so that it corresponds to the third conveyor belt (162), and the supporting belt (144) is tightened; Sixth, the placement box (120) is gradually raised by the first electric telescopic rod (122), so that the meat slides from the support belt (144) to the third conveyor belt (162) for discharge. While being raised, the meat is moved by the conveyance of the first conveyor belt (130) and the fourth conveyor belt (410). The first motor drives the first electric telescopic rod (122) to rotate, so that the placement box (120) is tilted. The support belt (144) is tightened or loosened by the winding device (150). The support belt (144) on the winding device (150) is always aligned with the third conveyor belt (162) by the extension and retraction of the second electric telescopic rod (152) and the third electric telescopic rod (154); 7. After the unloading is completed, proceed to steps 1 to 6 to soak and freeze the next batch of meat.

10. The immersion freezing method for meat industry according to claim 9, characterized in that: In step six, when the meat slides on the support belt (144) above the coolant recovery pool (170), the coolant adhering to the meat will drip into the coolant recovery pool (170) for recovery; Before feeding and discharging, the fourth electric telescopic rod (113) is telescoped to change the height of the second guide rod (143), thereby changing the angle of the support belt (144) between the second guide rod (143) and the first guide rod (142).

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