CN117732844B - A system and process for high-temperature harmless treatment of dead animals - Google Patents

Abstract

The present invention discloses a system and a process for high-temperature harmless treatment of dead animals, comprising a cold storage box for refrigerating materials, a grinder for crushing materials and a high-temperature chemical processing machine for high-temperature treatment. A storage mechanism is provided in the cold storage box, and a plurality of storage chambers are provided in the storage mechanism, which can store materials in layers and can be transported toward a discharge port in sequence according to demand; the materials at the discharge port can be transported to the grinder for crushing by a first conveying mechanism, and then transported to the high-temperature chemical processing machine for treatment by a second conveying mechanism, wherein the first conveying mechanism and the second conveying mechanism both seal and wrap the conveyor belts through an outer shell, and the whole process is fully closed without direct contact by employees; wherein a first interlayer is provided in the high-temperature chemical processing machine, the first interlayer is at least connected to the grinder, and is used to temporarily store the gas generated in the grinder, and is subjected to high-temperature treatment in the high-temperature chemical processing machine, and resources are reused by subjecting the waste gas to high-temperature treatment.

Description

A system and process for high-temperature harmless treatment of dead animals

Technical Field

The invention relates to the technical field of harmless treatment of dead animals, and in particular to a high-temperature harmless treatment system and a treatment process for dead animals.

Background technique

In order to standardize the harmless treatment operation technology of dead animal carcasses and related animal products, prevent major animal epidemics, and maintain the quality and safety of animal products, it is necessary to carry out harmless treatment of dead animal carcasses such as deep burial, chemical treatment, and incineration; among them, high-temperature chemical treatment refers to the process of digesting and converting dead animal carcasses into sterile solutions and dry bone residues under the action of high temperature and pressure in a closed high-pressure container by introducing high-temperature saturated steam into the container interlayer or container, and killing all pathogenic microorganisms at the same time; the chemical treatment method has the advantages of simple operation, strong processing capacity, good sterilization effect, and short processing cycle. However, when a large number of dead animals are processed, the dead animal materials need to be crushed in turn and then transported to a high-temperature chemical treatment machine for processing. The temporary storage and transportation of the dead animal materials are easy to come into contact with the staff, and foul-smelling gases are easy to be generated during the crushing process. Therefore, a high-temperature chemical harmless treatment system and processing technology for dead animals are urgently needed to solve the above problems.

Summary of the invention

The purpose of the present invention is to provide a high-temperature harmless treatment system and treatment process for dead animals, which can effectively solve the problems existing in the above-mentioned prior art.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a system for high-temperature decontamination of dead animals, comprising a refrigerator for refrigerating materials, a crusher for crushing materials and a high-temperature decontamination machine for high-temperature decontamination, wherein a storage mechanism is provided in the refrigerator, wherein a plurality of storage cavities are provided in the storage mechanism, and the plurality of storage cavities are configured to be connected to a material discharge port of the refrigerator one by one during operation; and

A first conveying mechanism is installed between the refrigerator and the pulverizer, and the first conveying mechanism is used to convey the material from the discharge port of the refrigerator to the entrance of the pulverizer;

A second conveying mechanism is installed between the pulverizer and the high-temperature chemical processing machine, and the second conveying mechanism is used to convey the material from the feed opening of the pulverizer to the entrance of the high-temperature chemical processing machine;

Wherein, a first interlayer is provided in the high-temperature chemical treatment machine, and the first interlayer is at least connected to the pulverizer and is used for temporarily storing the gas generated in the pulverizer.

Preferably, the storage mechanism includes a conveying platform arranged in a vertical direction, and a plurality of layers of carrying plates are installed on the conveying platform along the transmission direction. The space above each layer of the carrying plates constitutes a storage cavity and is used to store materials. The unloading port is arranged at the bottom of the cold storage box. The conveying platform is used to circulate and transport each of the carrying plates between the top of the cold storage box and the unloading port, and open the storage cavity above the carrying plate at least when the carrying plate is transported to the unloading port.

Preferably, the storage mechanism includes a pair of conveying platforms, the two conveying platforms are symmetrical and vertically arranged in the cold storage box, each of the carrying plates includes a pair of sub-carrying plates, the two carrying plates are respectively arranged at relative positions of the two conveying platforms, and as the conveying platforms are transported to the unloading port, the two sub-carrying plates change direction and swing to open the storage cavity above the carrying plates.

Preferably, each of the sub-carrying plates is a multi-stage telescopic plate structure, and a baffle is installed at the discharge port of the refrigerator, and the baffle is used to open and cover the discharge port; and

A linkage member is installed at the baffle. When the sub-carrier plates are conveyed to the unloading port, the linkage member contacts the sub-carrier plates and synchronously drives the two sub-carrier plates to retract as the baffle plates are opened.

Preferably, the conveying platform is configured to: convey the pair of sub-carrier plates to the top of the cold storage box when the pair of sub-carrier plates are conveyed to the unloading port; and

A pair of sub-carrying plates at the top are also in contact with the linkage member, and when the baffle is closed, the two sub-carrying plates are synchronously driven to extend.

Preferably, the baffle is slidably arranged at the material discharge port, and the baffle slides to open or close the material discharge port;

The linkage member includes a slide groove and a slider arranged in the slide groove, a shift plate is arranged on the slider, and the slider is connected to the baffle plate through a connecting rod. The sliding of the baffle plate synchronously drives the slider to slide along the slide groove, and the shift plate pushes the sub-carrier plate at the corresponding position to shrink or extend in the corresponding direction.

Preferably, the first conveying mechanism and the second conveying mechanism are both provided with a shell and a conveyor belt, and the shell is used to seal and wrap at least a portion of the conveyor belt located outside the refrigerator, the pulverizer and the high-temperature chemical processing machine.

Preferably, a reflux pipe is provided between the first interlayer and the outer shell of the first conveying mechanism, a second interlayer is provided in the outer shell, one end of the reflux pipe is connected with the first interlayer, and the other end is connected with an end of the second interlayer close to the pulverizer, an output pipe is provided at an end of the second interlayer close to the refrigerator, at least part of the gas in the first interlayer is transported to the second interlayer through the reflux pipe, and flows along the second interlayer for heat exchange and then is output from the output pipe.

Preferably, a spray head is provided in the cold storage box, and the spray head is located on the side of the conveying platform away from the storage cavity. The spray head is connected to the return pipe through an air pipe, and at least part of the gas in the return pipe flows to the spray head through the air pipe. The spray head is used to spray air flow to the supporting plate returned to the top of the cold storage box.

The present invention also discloses a high-temperature harmless treatment process for dead animals, using the above-mentioned high-temperature harmless treatment system for dead animals, comprising the following steps:

S1. The collected dead animal materials are sealed and transported to a refrigerator for layered storage;

S2, using the first conveying mechanism to sequentially convey the materials in each layer of the refrigerator to the crusher to be crushed into granular materials of 20mm-40mm;

S3, the pulverized material is then transported to a high-temperature chemical processing machine by a second conveying mechanism for high-temperature sterilization; and the gas generated by the pulverization is transported to the first interlayer in the high-temperature chemical processing machine through a pipeline;

S4, after being treated at high temperature, at least part of the gas in the first interlayer is returned to the first conveying mechanism through the reflux pipe for heat exchange;

S5, at least part of the gas that has undergone heat exchange is transported to the spray head in the refrigerator, and is used to clean the return carrier plate;

S6. The material after high temperature processing is dried and pressed to obtain meat and bone meal and oil.

Beneficial effects: The present invention can refrigerate the carcasses of dead animals through a refrigerator, and can store the materials in layers through the storage mechanism, and can be transported to the discharge port in sequence according to demand, and then the first conveying mechanism can be used to transport the materials at the discharge port to the pulverizer for pulverization, and then transported to the high-temperature chemical machine for processing through the second conveying mechanism, wherein the first conveying mechanism and the second conveying mechanism both seal and wrap the conveyor belt through the outer shell, and the whole process is fully enclosed, without direct contact by employees, which is safer and more comfortable;

In addition, through the action of the linkage parts, the baffle of the discharge port can be opened or closed, and the supporting plate at the discharge port can be contracted at the same time to open the storage cavity, releasing the material into the first conveying mechanism, and the supporting plate at the top of the refrigerator can be extended to form a whole supporting plate and constitute a complete storage cavity for the next material storage.

In the present invention, the waste gas generated in the pulverizer can be transported to the first interlayer provided in the high-temperature chemical processing machine, and high-temperature treatment is carried out in the high-temperature chemical processing machine. By subjecting the waste gas to high-temperature treatment and utilizing the reflux pipe to transport the high-temperature treated waste gas to the first conveying mechanism for heat exchange, on the one hand, the temperature of the gas is reduced, and on the other hand, the material output from the cold storage box is thawed to facilitate subsequent pulverizing operations. The waste gas obtained after cooling can be output to the subsequent processing device through the output pipe, and part of the gas can also be transported to the cold storage box through the air pipe for blowing and cleaning the returned carrying plate.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

In the attached picture:

FIG1 is a schematic structural diagram of a high-temperature chemical harmless treatment system according to the present invention;

FIG2 is a plan view of the interior of the refrigerator of the present invention;

FIG3 is a schematic diagram of the structure of the interior of the refrigerator of the present invention;

4 is a schematic diagram of the structure inside the first transmission mechanism of the present invention;

FIG5 is a schematic diagram of the internal structure of the high temperature chemical processing machine of the present invention;

FIG6 is a flow chart of the high temperature harmless treatment process of the present invention;

Numbers in the figure: 1. Refrigerator; 2. Crusher; 3. High-temperature chemical machine; 4. Conveyor platform; 5. Sub-carrying plate; 6. Storage chamber; 7. Feeding port; 8. Feeding port; 9. Baffle; 10. Slide; 11. Slider; 12. Connecting rod; 13. Paddle plate; 14. Bump; 15. First conveying mechanism; 151. Shell; 152. Conveyor belt; 16. Second conveying mechanism; 17. First interlayer; 18. Conveying pipe; 19. Second interlayer; 20. Sprinkler head; 21. Air pipe; 22. Output pipe.

Detailed ways

The following describes the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. The terms used in the embodiments of the present invention are only used to explain the specific embodiments of the present invention, and are not intended to limit the present invention. The following describes the embodiments of the present application in conjunction with the drawings. It is known to those of ordinary skill in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, which is just a way of distinguishing the objects of the same attributes when describing the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or device containing a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or devices.

Embodiment 1: As shown in FIG1 , a system for high-temperature treatment of dead animals comprises a refrigerator 1 for refrigerating materials, a crusher 2 for crushing materials, and a high-temperature treatment machine 3 for high-temperature treatment. A storage mechanism is provided in the refrigerator 1, and a plurality of storage chambers 6 are provided in the storage mechanism. The plurality of storage chambers 6 are configured to be connected to a feed opening 7 of the refrigerator 1 one by one during operation.

Among them, for the cold storage box 1, as shown in FIG1 , the top of the cold storage box is a feed inlet 8, and the bottom is a feed outlet, and the dead animal carcasses are put into the cold storage box 1 through the feed inlet 8;

As for the storage mechanism, the storage mechanism includes a conveying platform 4 arranged in the vertical direction, and a plurality of layers of carrying plates are installed on the conveying platform 4 along the transmission direction. The space above each layer of carrying plates constitutes a storage cavity 6 and is used to store materials. The unloading port 7 is arranged at the bottom of the cold storage box 1. The conveying platform 4 is used to circulate and transport each carrying plate between the top of the cold storage box 1 and the unloading port 7, and at least when the carrying plate is transported to the unloading port 7, the storage cavity 6 above the carrying plate is opened.

In some embodiments, referring to FIG. 2 and FIG. 3 , the storage mechanism includes a pair of conveying platforms 4, the two conveying platforms 4 are symmetrical and arranged in the cold storage box 1 in the vertical direction, each carrier plate includes a pair of sub-carrier plates 5, and the two carrier plates are respectively arranged at the relative positions of the two conveying platforms 4, and the conveying platform 4 is used to gradually convey each pair of sub-carrier plates 5 from the top position of the cold storage box 1 to the position of the discharge port 7, and turn and swing the two sub-carrier plates 5 to the other side at the discharge port 7, and continue to convey each sub-carrier plate 5 back to the top through the transmission platform, and turn and swing again to form a carrier plate as a whole, and the space above each carrier plate as a whole is a storage cavity 6, wherein, as the conveying platform 4 is conveyed to the discharge port 7, the two sub-carrier plates 5 change direction and swing to open the storage cavity 6 above the carrier plate, and the material in the storage cavity 6 falls into the discharge port 7;

Among them, in some embodiments, each sub-carrying plate 5 is a multi-stage telescopic plate structure, and the cold storage box 1 is installed with a baffle 9 at the discharge port 7, and the baffle 9 is used to open and cover the discharge port 7; and a linkage member is installed at the baffle 9, and as the sub-carrying plate 5 is transported to the discharge port 7, the linkage member contacts the sub-carrying plate 5, and when the baffle 9 is opened, the two sub-carrying plates 5 are synchronously driven to shrink; the conveying platform 4 is configured to: when a pair of sub-carrying plates 5 are transported to the discharge port 7, a pair of sub-carrying plates 5 are transported to the top of the cold storage box 1; and the top pair of sub-carrying plates 5 are also in contact with the linkage member, and when the baffle 9 is closed, the two sub-carrying plates 5 are synchronously driven to extend; the baffle 9 of the discharge port 7 can be opened or closed, and the carrier plate at the discharge port 7 can be simultaneously contracted so that the storage cavity 6 is opened, and the material is released into the first conveying mechanism 15, and the carrier plate at the top of the cold storage box 1 can be extended to form a whole carrier plate, and a complete storage cavity 6 is formed for the next material storage.

The arrangement of the multi-stage telescopic plate structure can reduce the space required for the return of the sub-carrier plate 5 and the space required for the turning of the sub-carrier plate 5, thereby avoiding space waste and improving space utilization.

Among them, referring to Figures 2 and 3, the baffle 9 is slidably arranged at the discharge port 7, and the baffle 9 slides to open or close the discharge port 7; the linkage member includes a slide groove 10 and a slider 11 arranged in the slide groove 10, and a dial plate 13 is arranged on the slider 11. The slider 11 is connected to the baffle 9 through a connecting rod 12, and the slider 11 is driven to slide along the slide groove 10 synchronously with the sliding of the baffle 9, and the sub-carrier plate 5 at the corresponding position is pushed to shrink or extend in the corresponding direction through the dial plate 13.

Among them, as shown in reference figure 2, a protrusion 14 can be set on the side of each sub-carrier plate 5 away from a section of the conveyor belt. When the conveyor platform transports the sub-carrier plate 5 to the unloading port 7, the protrusion 14 moves to the moving path of the dial plate 13. As the baffle plate 9 moves, the dial plate 13 is synchronously driven to move, thereby acting with the protrusion 14 to push the sub-carrier plate 5 to extend or contract. Since the upper and lower parts of the dial plate 13 are open spaces, it will not block the sub-carrier plate 5 from turning and swinging.

As shown in reference Figure 1, a first conveying mechanism 15 is installed between the cold storage box 1 and the crusher 2, and the first conveying mechanism 15 is used to convey the material from the discharge port 7 of the cold storage box 1 to the entrance of the crusher 2; a second conveying mechanism 16 is installed between the crusher 2 and the high-temperature chemical processing machine 3, and the second conveying mechanism 16 is used to convey the material from the discharge port 7 of the crusher 2 to the entrance of the high-temperature chemical processing machine 3.

Among them, the first conveying mechanism 15 and the second conveying mechanism 16 are both provided with a shell 151 and a conveyor belt 152. The shell 151 is used to seal and wrap at least the part of the conveyor belt 152 located outside the refrigerator 1, the crusher 2 and the high-temperature chemical machine 3. The whole process is fully enclosed and does not require direct contact by employees, which is safer and more comfortable.

Embodiment 2: Referring to FIG. 4 and FIG. 5, a first interlayer 17 is provided in the high-temperature chemical processing machine 3. The first interlayer 17 is at least connected to the pulverizer 2 through a conveying pipe 18 and is used to temporarily store the gas generated in the pulverizer 2 and perform high-temperature treatment in the high-temperature chemical processing machine 3. By performing high-temperature treatment on the waste gas, a reflux pipe is provided between the first interlayer 17 and the outer shell 151 of the first conveying mechanism 15. A second interlayer 19 is provided in the outer shell 151. One end of the reflux pipe is connected to the first interlayer 17, and the other end is connected to a section of the second interlayer 19 near the pulverizer 2. An output pipe 22 is provided at one end of the second interlayer 19 near the cold storage box 1. At least part of the gas in the first interlayer 17 is transported to the second interlayer 19 through the reflux pipe. , and flows along the second interlayer 19 for heat exchange and then is output from the output pipe 22; on the one hand, it can reduce the temperature of the gas, and on the other hand, it can thaw the material output from the cold storage box 1, which is convenient for the subsequent crushing operation. The waste gas obtained after cooling can be output to the subsequent processing device through the output pipe 22, or, as shown in Figure 2, a spray head 20 is arranged in the cold storage box 1, and the spray head is arranged in the cold storage box 1, and is located on the side of the conveying platform 4 away from the storage chamber 6. The spray head 20 is connected to the return pipe through the air pipe 21. At least part of the gas in the return pipe flows to the spray head 20 through the air pipe 21. The spray head 20 is used to spray air to the carrier plate returned to the top of the cold storage box 1 to blow and clean the returned carrier plate.

The present invention also discloses a high-temperature harmless treatment process for dead animals. As shown in FIG6 , the collected dead livestock and poultry are placed in closed, watertight containers and transported to a harmless treatment room by special vehicles. The transportation route is reasonably arranged, and does not pass through villages, towns and other residential areas, and does not stop at will. During the transportation process, animal quarantine officers or animal epidemic prevention personnel should be assigned to accompany the vehicle for transportation; vehicles transporting dead livestock and poultry must be thoroughly cleaned and disinfected within the factory after completing one transportation; the transport vehicle enters the factory at the production entrance, collects and transports the dead animals to the factory by a special closed vehicle, a yellow warning sign for dangerous goods is installed on the top of the front of the transport vehicle, and a notice board and a warning sign for dangerous goods are installed on the rear of the vehicle, and cleaning and disinfection are carried out on time; all vehicles are equipped with a closed system, an automatic control system, a refrigeration system, a unified music player, and a GPS satellite positioning system. Online monitoring is achieved through the GPS positioning system. Dead animals are collected at each collection point at a fixed time every day along a fixed route. Transport operators should be equipped with professional protective equipment and can only take up their posts after safety training. The exterior of the transport vehicle is cleaned and disinfected at the disinfection pool at the entrance of the plant to ensure that no pathogens are brought into the plant from the exterior of the vehicle. Disinfection uses a 2% sodium hydroxide solution, which is an inorganic chemical reagent and a safe and efficient disinfectant with excellent performance. It can ensure the disinfection of animal products and wash away the urine or feces left by dead animals on the vehicle. No waste gas pollutants are generated in this process. The pollutants generated in this process are mainly disinfection wastewater generated by cleaning and disinfection. After disinfection, the special transport vehicle enters the unloading area from the workshop production entrance, is weighed, and the types and categories of dead livestock and poultry are recorded and filed one by one. The filed materials go through the following steps:

S1, the collected dead animal materials are sealed and transported to a refrigerator 1 for layered storage;

During the storage process, the cold storage is generally cleaned (cleaned and disinfected) once a week. The cleaning cycle is mainly determined by the storage cycle of animal meat. In principle, there is no frost, the frost is not higher than 1cm, and the ground ice is not higher than 2cm. The disinfection process mainly uses 5% hypochlorous acid solution to spray in the cold storage;

The above-mentioned storage mechanism can be used to drop the material in one or more layers of the storage cavity 6 from the discharge port 7 onto the conveyor belt of the first conveying mechanism according to demand;

S2. The materials in each layer of the refrigerator 1 are sequentially conveyed to the crusher 2 by the first conveying mechanism 15. The conveying channels are all closed, and the employees do not need to contact the dead animals. The materials are crushed into minced meat pieces with a particle size of 20mm-40mm in a closed environment with negative pressure. This process will produce a certain amount of malodorous gas, and the waste gas can be conveyed to the first interlayer 17 in the high-temperature chemical machine 3 to wait for high-temperature treatment;

S3. The crushed material is then transported to the high-temperature chemical treatment machine 3 by the second conveying mechanism 16 for high-temperature sterilization; the high-temperature chemical treatment process adopts the dry chemical treatment process recommended in the Technical Specifications for the Harmless Treatment of Dead and Diseased Animals (Nongyifa [2017] No. 25); after the material enters the chemical treatment tank, it is heated by the high temperature generated by the steam boiler. When the temperature in the chemical treatment tank reaches 160°C and the pressure reaches 0.5MP151 (absolute pressure), the pressure and temperature are maintained for 4 hours, which can effectively kill bacteria such as anthrax Bacillus, Bacillus subtilis, and Bacillus spores that require more than 120°C to be completely killed, ensuring that the chemical treatment is thorough, and then the vacuum system is started to vacuum the waste gas in the tank;

S4, at least part of the gas in the first interlayer 17 is returned to the first conveying mechanism 15 through the reflux pipe for heat exchange after being treated at high temperature;

S5, at least part of the gas that has undergone heat exchange is transported to the spray head 20 in the cold storage box 1, and is used to clean the return carrier plate;

S6. The materials after high-temperature chemical treatment are dried and pressed to obtain meat and bone meal and oil. Among them, the materials are dried before pressing, and the heating method is steam jacket heating, which does not directly contact the materials. The chemical materials are sent to the screw oil press through the conveying system to press the materials. The pressing is to use the screw shaft to push the materials from the feed port and continuously push them in the pressing chamber. Every time the rotating shaft rotates one circle, the pressed materials are pushed forward for a distance, and the space volume in the pressing chamber continues to decrease. Coupled with the forward thrust of the thread, the pressed materials are compressed. In this compression process, the oil is squeezed out, and the squeezed oil enters the buffer oil tank after filtration, and the finished products are stored in the warehouse; the materials enter the drying system; the whole process adopts a PLC intelligent control system, and the process is fully closed, without direct contact with employees.

Among them, the oil prepared by high-temperature chemical preparation is separated by a separator for oil-water separation. This treatment process significantly reduces the content of suspended impurities in the oil, and thus significantly reduces the acid value of the oil prepared by the high-temperature chemical preparation method. The oil prepared by the high-temperature chemical preparation method can be directly transported to the oil storage tank for sale as a finished product; compared with the oil prepared by the high-temperature drying method, the oil prepared by the high-temperature chemical preparation method has a lower acid value and suspended impurities and a longer storage period.

For the sewage generated in the high-temperature chemical process, the primary pretreatment process + secondary pretreatment process + anoxic treatment process + anaerobic treatment process + aerobic treatment process + sedimentation treatment process + disinfection treatment process can be used. This can completely solve the problems existing in the existing high-temperature chemical process, such as unstable sewage quality and water quantity, large batch differences in biochemical system load, and substandard sewage effluent indicators.

For the waste gas generated in the high-temperature chemical process, the water washing pretreatment process + demister treatment process + acid washing tower treatment process + demister treatment process + alkali washing tower treatment process + demister treatment for subsequent use + UV photolysis treatment process can be used. This can completely solve the problems of large waste gas volume and complex waste gas composition, low waste gas concentration and difficulty in enrichment, and substandard waste gas treatment in the existing high-temperature chemical process.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. For ordinary technicians in this technical field, after knowing the contents recorded in the present invention, they can make several equivalent changes and substitutions without departing from the principle of the present invention. These equivalent changes and substitutions should also be regarded as belonging to the protection scope of the present invention.

Claims (6)

1. A system for high-temperature decontamination of dead animals, comprising a refrigerator for refrigerating materials, a crusher for crushing materials, and a high-temperature decontamination machine for high-temperature decontamination, characterized in that a storage mechanism is provided in the refrigerator, and a plurality of storage cavities are provided in the storage mechanism, and the plurality of storage cavities are configured to be connected to a feed port of the refrigerator one by one during operation; and A first conveying mechanism is installed between the refrigerator and the pulverizer, and the first conveying mechanism is used to convey the material from the discharge port of the refrigerator to the entrance of the pulverizer; A second conveying mechanism is installed between the pulverizer and the high-temperature chemical processing machine, and the second conveying mechanism is used to convey the material from the feed opening of the pulverizer to the entrance of the high-temperature chemical processing machine; Wherein, a first interlayer is provided in the high temperature chemical treatment machine, the first interlayer is at least connected to the pulverizer and is used to temporarily store the gas generated in the pulverizer; The storage mechanism comprises a conveying platform arranged in a vertical direction, a plurality of layers of carrying plates are installed on the conveying platform in a transmission direction, the space above each layer of the carrying plates constitutes a storage cavity and is used to store materials, a discharge port is arranged at the bottom of the cold storage box, the conveying platform is used to circulate each of the carrying plates between the top of the cold storage box and the discharge port, and at least when the carrying plate is conveyed to the discharge port, the storage cavity above the carrying plate is opened; The first conveying mechanism and the second conveying mechanism are both provided with a shell and a conveyor belt, wherein the shell is used to seal and wrap at least a portion of the conveyor belt located outside the refrigerator, the pulverizer and the high-temperature chemical processing machine; A return pipe is provided between the first interlayer and the shell of the first conveying mechanism, a second interlayer is provided in the shell, one end of the return pipe is connected to the first interlayer, and the other end is connected to the end of the second interlayer close to the pulverizer, an output pipe is provided at the end of the second interlayer close to the refrigerator, at least part of the gas in the first interlayer is transported to the second interlayer through the return pipe, and flows along the second interlayer for heat exchange before being output from the output pipe; A spray head is provided in the cold storage box. The spray head is located on the side of the conveying platform away from the storage cavity. The spray head is connected to the return pipe through an air pipe. At least part of the gas in the return pipe flows to the spray head through the air pipe. The spray head is used to spray air flow to the supporting plate returned to the top of the cold storage box. 2. A system for high-temperature harmless treatment of dead animals according to claim 1, characterized in that: the storage mechanism includes a pair of conveying platforms, the two conveying platforms are symmetrical and arranged in the cold storage box along the vertical direction, each of the carrying plates includes a pair of sub-carrying plates, the two carrying plates are respectively arranged at the relative positions of the two conveying platforms, and as the conveying platforms are transported to the unloading port, the two sub-carrying plates change direction and swing to open the storage cavity above the carrying plates. 3. A system for high-temperature harmless treatment of dead animals according to claim 2, characterized in that: each of the sub-carrying plates is a multi-stage telescopic plate structure, and a baffle is installed at the feed opening of the refrigerator, and the baffle is used to open and cover the feed opening; and A linkage member is installed at the baffle. When the sub-carrier plates are conveyed to the unloading port, the linkage member contacts the sub-carrier plates and synchronously drives the two sub-carrier plates to retract as the baffle plates are opened. 4. A system for high temperature harmless treatment of dead animals according to claim 3, characterized in that: the conveying platform is configured to: when a pair of sub-carrier plates are conveyed to the unloading port, the pair of sub-carrier plates are conveyed to the top of the cold storage box; and A pair of sub-carrying plates at the top are also in contact with the linkage member, and when the baffle is closed, the two sub-carrying plates are synchronously driven to extend. 5. A high-temperature harmless treatment system for dead animals according to claim 4, characterized in that: the baffle is slidably arranged at the feed opening, and the baffle slides to open or close the feed opening; The linkage member includes a slide groove and a slider arranged in the slide groove, a shift plate is arranged on the slider, and the slider is connected to the baffle plate through a connecting rod. The sliding of the baffle plate synchronously drives the slider to slide along the slide groove, and the shift plate pushes the sub-carrier plate at the corresponding position to shrink or extend in the corresponding direction. 6. A high-temperature harmless treatment process for dead animals, using a high-temperature harmless treatment system for dead animals as claimed in any one of claims 1 to 5, characterized in that it comprises the following steps: S1. The collected dead animal materials are sealed and transported to a refrigerator for layered storage; S2, using the first conveying mechanism to sequentially convey the materials in each layer of the refrigerator to the crusher and crush them into granular materials of 20mm-40mm; S3, the pulverized material is then transported to a high-temperature chemical processing machine by a second conveying mechanism for high-temperature sterilization; and the gas generated by the pulverization is transported to the first interlayer in the high-temperature chemical processing machine through a pipeline; S4, after being treated at high temperature, at least part of the gas in the first interlayer is returned to the first conveying mechanism through the reflux pipe for heat exchange; S5, at least part of the gas that has undergone heat exchange is transported to the spray head in the refrigerator, and is used to clean the return carrier plate; S6. The material after high temperature processing is dried and pressed to obtain meat and bone meal and oil.