Animal remains processing device

Abstract

The invention belongs to the related technical field of animal remains treatment, and discloses an animal remains treatment device which comprises a box body, a spraying unit is arranged at the top of the box body, a soaking and freezing unit is arranged below the spraying unit, animal remains are placed in the soaking and freezing unit, and the animal remains are conveyed to a vacuum drying unit after being sprayed, soaked and frozen. And performing crushing treatment after drying. Two-phase heat exchange of liquid nitrogen spraying is utilized, quick freezing of the remains is achieved, then liquid nitrogen is utilized for soaking, and ductile-brittle transformation of animal remains tissue is achieved; sublimation of water in the remains is achieved through negative pressure, drying of the animal remains is achieved, mechanical damage is reduced to the maximum extent, pathogens and bacteria can be effectively killed through liquid nitrogen freezing and smashing, and therefore the risk of infectious diseases is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field related to animal remains processing, and more specifically, relates to an animal remains processing device. Background Art

[0002] Most of the existing low-temperature freezing and crushing devices use liquid nitrogen as a cold source. The temperature of liquid nitrogen under normal pressure is -196°C. When the animal remains are immersed in liquid nitrogen, the liquid nitrogen absorbs the heat of the remains. Under deep low temperature conditions, biological tissues will undergo a "tough-brittle transition", that is, the material changes from tough to brittle under low temperature conditions. After the material achieves the tough-to-brittle transition under deep low temperature conditions, the remains become brittle, which is convenient for crushing and decomposition. The high-speed rotation of the mechanical impeller and the friction and collision between the materials are then used to achieve the crushing effect. However, when some biological remains are directly immersed in liquid nitrogen, the tough-to-brittle transition fails to be achieved, and there is an abnormal hardening phenomenon, which causes serious damage to subsequent equipment and makes it impossible to achieve safe and harmless treatment of animal remains. Summary of the invention

[0003] In view of the above defects or improvement needs of the prior art, the present invention provides an animal remains processing device to solve the problem of safe and harmless processing of animal remains.

[0004] To achieve the above-mentioned purpose, the present invention provides an animal remains processing device, including a box body, wherein a spray unit, an immersion freezing unit, a vacuum drying unit and a crushing unit are sequentially arranged inside the box body; the spray unit is located at the top of the box body, and includes a nozzle arranged at the top of the box body, and the nozzle is used to spray a cooling medium onto the animal remains; the immersion freezing unit is located below the spray unit, and the immersion freezing unit includes a immersion pool, and the spraying direction of the nozzle is toward the immersion pool, and the immersion pool is used to immerse and freeze the animal remains; the vacuum drying unit is located below the immersion freezing unit, and is used to dry the animal remains after immersion and freezing; the crushing unit is located below the vacuum drying unit, and is used to crush the animal remains after vacuum drying.

[0005] Further, in a possible implementation, the pool bottom of the soaking pool is rotatably connected to the side wall of the box, and the pool bottom has an open state and a closed state.

[0006] Furthermore, in a possible implementation, a vacuum drying unit is provided below the immersion freezing unit, and the vacuum drying unit includes a vacuum upper wall and a vacuum lower wall, and the vacuum upper wall, the vacuum lower wall and the side wall of the box body enclose a vacuum cavity, and the vacuum cavity is connected to a vacuum pump, and the vacuum upper wall and the vacuum lower wall both have an open state and a closed state.

[0007] Furthermore, in a possible implementation, a crushing unit is provided below the vacuum drying unit, the crushing unit includes a crushing chamber, the crushing chamber is provided with a crushing inlet and a crushing outlet, the crushing inlet is located below the vacuum lower wall, the crushing outlet is located on the side wall of the box body, an ultrasonic crushing table is provided in the crushing chamber, and the ultrasonic crushing table is used to crush animal remains.

[0008] Furthermore, in a possible implementation, the animal remains processing device also includes a conveyor belt, which is located between the vacuum drying unit and the pulverizing unit, one end of the conveyor belt is connected to the side wall of the box, and the other end is located directly above the pulverizing inlet.

[0009] Furthermore, in a possible implementation, the animal remains processing device also includes a storage tank, which is connected to the nozzle and the immersion tank respectively through pipelines, and a regulating valve is provided on the pipeline, and the storage tank is used to store cooling medium.

[0010] Furthermore, in a possible implementation, the animal remains processing device also includes a control console, a temperature sensor is provided in the immersion pool, a pressure sensor is provided in the vacuum chamber, the temperature sensor and the pressure sensor are both connected to the control console, and the control console is used to control the spray unit, the immersion and freezing unit, the vacuum drying unit and the crushing unit.

[0011] Furthermore, in a possible implementation, a cold energy recovery system is also included. The cold energy recovery system is connected to the box body through a pipeline, and the cold energy recovery system is used to recover the cooling medium in the box body.

[0012] Furthermore, in a possible implementation, the cold energy recovery system includes a recovery tank and a fan, and both the recovery tank and the fan are connected to the soaking tank.

[0013] In general, compared with the prior art, the present invention utilizes the two-phase heat exchange of liquid nitrogen spray to achieve rapid freezing of animal remains. When the surface temperature of the remains is higher than the saturation temperature of the cooling medium, the release of the latent heat of liquid nitrogen achieves rapid cooling of the remains. In the nucleate boiling stage, the increase in the surface temperature of the liquid nitrogen will cause the local area to reach an overheated state, prompting the formation of bubbles inside the liquid film. After absorbing heat, the volume of the bubbles continues to increase. Under the action of buoyancy and the driving force of the liquid film, the bubbles begin to move. A large number of bubbles are formed and forced to leave with the phase change and stirring of the liquid film, and eventually take away a large amount of heat. After the liquid nitrogen spray, the liquid nitrogen is soaked in liquid nitrogen, which is conducive to the effective tough-brittle transformation of the remains tissue. The liquid nitrogen in the soaking pool absorbs the heat of the remains, realizes the brittleness of the remains, and facilitates the subsequent crushing and decomposition. After the spray soaking, the remains are transported to the vacuum drying unit, and the negative pressure is used to realize the sublimation of the water inside the remains, so as to achieve the drying of the animal remains. Finally, the material is crushed. The crushing unit uses ultrasound to resonate with the material, crushing it evenly into powder and minimizing mechanical damage. At the same time, liquid nitrogen freezing and crushing can effectively kill pathogens and bacteria, thereby reducing the risk of infectious diseases and achieving harmless disposal of animal remains.

[0014] The integrated temperature sensor of the present invention can monitor the temperature in the immersion pool in real time, and the pressure sensor installed in the vacuum chamber can detect the pressure in the chamber to control the negative pressure to ensure a good drying effect. The data of the temperature and pressure sensors can be integrated into the console through data cables, and the console is used to control the transmission of related units and body materials to achieve automated management and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an animal remains processing device constructed according to a preferred embodiment of the present invention.

[0016] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0017] 1-box; 2-insulation layer; 3-vacuum layer; 4-control console; 5-pressure sensor; 6-storage tank; 7-regulating valve; 8-pipeline; 9-temperature sensor; 10-nozzle; 11-fan; 12-pool bottom; 13-recovery tank; 14-recovery pipeline; 15-vacuum upper wall; 16-vacuum chamber; 17-vacuum pump; 18-transmission belt; 19-crushing inlet; 20-crushing chamber; 21-crushing outlet; 22-ultrasonic crushing table; 23-immersion tank; 24-vacuum lower wall. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1 As shown, the present invention provides an animal remains processing device, including a box body 1, the outermost layer of the box body 1 is a heat preservation layer 2, and the inner layer is a vacuum layer 3. By providing the heat preservation layer 2 and the vacuum layer 3, heat conduction and radiation heat leakage can be reduced, and the cooling medium loss can be reduced while maintaining a low temperature environment. The cooling medium used in the animal remains processing device provided by the present invention can be liquid nitrogen, and the subsequent embodiments are all illustrated by taking liquid nitrogen as the cooling medium.

[0020] In a possible embodiment, the animal remains processing device includes a spray unit, an immersion freezing unit, a vacuum drying unit and a pulverizing unit. Figure 1 As shown, a spray unit is provided on the top of the box 1. The spray unit includes a nozzle 10 arranged in the box. The nozzle 10 can spray liquid nitrogen onto the animal remains. The animal remains can be rapidly frozen by precisely controlling and evenly spraying the liquid nitrogen.

[0021] An immersion freezing unit is provided below the spray unit, and the immersion freezing unit includes an immersion pool 23, the pool mouth of the immersion pool 23 is opposite to the nozzle 10, the pool bottom 12 of the immersion pool 23 is rotatably connected to the side wall of the box body 1, and the pool bottom 12 can be opened or closed by a hinge. Liquid nitrogen can be introduced into the immersion pool 23 to immerse and cool the animal remains. The animal remains are immersed in liquid nitrogen, and the liquid nitrogen absorbs the heat of the remains. Under deep low temperature conditions, the biological tissue undergoes a tough-brittle transition, and the remains are brittle, which is convenient for subsequent crushing and decomposition.

[0022] The present invention utilizes liquid nitrogen spray cooling technology to achieve rapid freezing of animal remains. When the surface temperature of the remains is higher than the saturation temperature of the cooling medium, the release of latent heat of liquid nitrogen achieves rapid cooling of the remains. The nucleate boiling stage is the stage with the highest heat exchange capacity of the two-phase spray cooling. In the nucleate boiling stage, the increase in the surface temperature of the liquid nitrogen will cause the local area to reach an overheated state, prompting the formation of bubbles inside the liquid film. After absorbing heat, the volume of the bubbles continues to increase. Under the action of buoyancy and liquid film driving force, the bubbles begin to move. A large number of bubbles are formed and forced to leave with the phase change and stirring of the liquid film, and finally take away a large amount of heat, achieving rapid freezing of the animal remains.

[0023] After spraying and soaking are completed, the bottom 12 of the soaking pool 23 can be opened by a hinge, and the material to be processed is transmitted downward to the vacuum drying unit. The vacuum drying unit can dry the animal remains after the animal remains are cooled and soaked, and then the crushing unit can crush the vacuum dried animal remains.

[0024] In a possible embodiment, the vacuum drying unit includes a vacuum upper wall 15, a vacuum lower wall 24, a vacuum chamber 16, and a vacuum pump 17. The vacuum upper wall 15, the vacuum lower wall 24, and the side wall of the box body 1 enclose a vacuum chamber 16, and the vacuum chamber 16 is connected to a vacuum pump 17, which can evacuate air to maintain a vacuum environment in the vacuum chamber 16. After spraying and soaking, the body is transferred to the vacuum chamber 16 through the vacuum upper wall 15, and after vacuuming by the vacuum pump 17, it is dried and dehydrated for a certain period of time, and after dehydration, it is transferred to the pulverization unit via the conveyor belt 18.

[0025] Specifically, after the spray soaking of the animal remains is completed, the bottom 12 of the soaking pool 23 is opened by a hinge, and the remains are transferred to the vacuum chamber 16 through the bottom 12 and the vacuum upper wall 15. After the vacuum is evacuated by the vacuum pump 17, the water inside the remains is sublimated by negative pressure to dry and dehydrate the animal remains. The water in the cells of biological tissues exists in the form of bound water and free water. The water has been transformed from liquid to solid during the liquid nitrogen cooling process. The animal remains are placed in a vacuum environment, and the water and moisture inside the remains are removed by negative pressure. The water in the remains evaporates in the form of solid ice, which can achieve the drying of the remains.

[0026] In a possible embodiment, the pulverizing unit includes a pulverizing chamber 20, in which an ultrasonic pulverizing table 22 is provided, and the ultrasonic pulverizing table 22 can pulverize the animal remains. Specifically, the dried and dehydrated remains are transmitted to the pulverizing chamber 20 via the conveyor belt 18 and the pulverizing inlet 19, and the ultrasonic pulverizing table 22 provided in the pulverizing chamber 20 generates ultrasonic waves that resonate with the material to achieve uniform pulverization into powder. After the pulverized remains pass through the pulverizing outlet 21, post-processing is performed to complete the harmless treatment of the animal remains.

[0027] In a possible embodiment, the animal remains processing device also includes a storage tank 6, which is connected to the nozzle 10 and the immersion tank 23 respectively through a pipeline 8. A regulating valve 7 is provided on the pipeline 8. Liquid nitrogen is stored in the storage tank 6 to supply the nozzle 10 and the immersion tank 23 for use.

[0028] In a possible embodiment, the animal remains processing device in this embodiment also includes a control console 4, a temperature sensor 9 is provided in the soaking pool 23, a pressure sensor 5 is provided in the vacuum chamber 16, and both the temperature sensor 9 and the pressure sensor 5 are connected to the control console 4, and the control console 4 can control the spray unit, the soaking and freezing unit, the vacuum drying unit and the crushing unit. The soaking and freezing unit is equipped with a temperature sensor 9 to monitor the temperature in the chamber in real time, and the time of the subsequent steps is determined according to the empirical formula of the soaking time and temperature. The vacuum chamber 16 is equipped with a pressure sensor 5 to detect the pressure in the chamber to control the negative pressure and ensure a good drying effect. The data is integrated into the control console 4 through a data cable, and the bottom 12 of the soaking pool 23, the vacuum upper wall 15 and the vacuum lower wall 24 are controlled to be opened or closed according to the detection value.

[0029] In a possible embodiment, the animal remains processing device provided by the present invention further includes a cold energy recovery system, which is connected to the box body 1 through a pipeline and can recover the cooling medium in the box body. During the soaking process of the animal remains, liquid nitrogen is seriously lost, and part of the liquid nitrogen in the soaking pool 23 evaporates and turns into low-temperature nitrogen. The high-grade cold energy possessed by the low-temperature nitrogen is still valuable, and the remaining cold energy can be utilized through the heat exchange equipment.

[0030] In a possible embodiment, the cold energy recovery system includes a recovery tank 13 and a fan 11, and the recovery tank 13 and the fan 11 are both connected to the soaking pool 23 to recover the remaining cold energy. The storage tank 6, the regulating valve 7, the pipeline 8, the nozzle 10, the fan 11, the recovery tank 13 and the recovery pipeline 14 together form a circulation system for the use and recovery of liquid nitrogen. For example, the nitrogen vaporized after convection heat exchange continues to use its cold energy after being extracted by the fan 11, thereby improving the utilization rate of liquid nitrogen. The nitrogen cold energy can be used as a cold source for ice storage, ice making, etc., and the room temperature nitrogen can be used for subsequent use after purification; at the same time, the remaining liquid nitrogen after soaking can be recovered to the storage tank 6 for reuse after filtration.

[0031] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for processing animal remains, It is characterized in that It comprises a box body (1), wherein a spray unit, an immersion freezing unit, a vacuum drying unit and a pulverizing unit are arranged inside the box body (1); The spray unit is located at the top of the box (1), and comprises a nozzle (10) arranged at the top of the box (1), and the nozzle (10) is used to spray a cooling medium onto the animal remains to achieve rapid freezing of the remains; The immersion freezing unit is located below the spray unit, and comprises a immersion pool (23). The spraying direction of the nozzle (10) is toward the immersion pool (23). The immersion pool (23) is used to immerse and freeze the animal remains after the spraying is completed, so as to achieve a tough-brittle transformation of the animal remains. The vacuum drying unit is located below the immersion freezing unit and is used to dry the animal remains after immersion freezing; the crushing unit is located below the vacuum drying unit and is used to crush the animal remains after vacuum drying.

2. The animal remains processing device according to claim 1, It is characterized in that The pool bottom (12) of the soaking pool (23) is rotatably connected to the side wall of the box body (1), and the pool bottom (12) has an open state and a closed state.

3. The animal remains processing device according to claim 1, It is characterized in that The vacuum drying unit comprises a vacuum upper wall surface (15) and a vacuum lower wall surface (24); the vacuum upper wall surface (15), the vacuum lower wall surface (24) and the side wall of the box body (1) enclose a vacuum chamber (16); the vacuum chamber (16) is connected to a vacuum pump (17); and the vacuum upper wall surface (15) and the vacuum lower wall surface (24) both have an open state and a closed state.

4. The animal remains processing device according to claim 3, It is characterized in that The pulverizing unit comprises a pulverizing chamber (20), wherein the pulverizing chamber (20) is provided with a pulverizing inlet (19) and a pulverizing outlet (21), wherein the pulverizing inlet (19) is located below the vacuum lower wall surface (24), and the pulverizing outlet (21) is located on the side wall of the box body (1), and an ultrasonic pulverizing table (22) is provided in the pulverizing chamber (20), and the ultrasonic pulverizing table (22) is used for pulverizing animal remains.

5. The animal remains processing device according to claim 4, It is characterized in that It also includes a conveyor belt (18), which is located between the vacuum drying unit and the pulverizing unit. One end of the conveyor belt (18) is connected to the side wall of the box body (1), and the other end is located directly above the pulverizing inlet (19).

6. The animal remains processing device according to claim 5, It is characterized in that It also comprises a storage tank (6), wherein the storage tank (6) is connected to the nozzle (10) and the immersion tank (23) respectively through pipelines, a regulating valve (7) is provided on the pipeline, and the storage tank (6) is used to store liquid nitrogen.

7. The animal remains processing device according to claim 6, It is characterized in that The animal remains processing device also includes a control console (4), a temperature sensor (9) is provided in the soaking pool (23), a pressure sensor (5) is provided in the vacuum chamber (16), the temperature sensor (9) and the pressure sensor (5) are both connected to the control console (4), and the control console (4) is used to control the spray unit, the soaking and freezing unit, the vacuum drying unit and the pulverizing unit.

8. The animal remains processing device according to any one of claims 1 to 7, It is characterized in that It also comprises a cold energy recovery system, which is connected to the box (1) via a pipeline, and is used to recover the cooling medium in the box (1).

9. The animal remains processing device according to claim 8, It is characterized in that The cold energy recovery system comprises a recovery tank (13) and a fan (11), and both the recovery tank (13) and the fan (11) are connected to the soaking tank (23).

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