Innocent treatment device for experimental animals
By designing a harmless treatment device for experimental animals with crushers, cooking tanks, waste gas treatment tanks and solid-liquid separation devices, the problem of many existing equipment and inconvenient use is solved, and the safe and fast treatment of small experimental animals is achieved, reducing water Resource waste and air pollution meet the requirements of energy conservation and emission reduction.
Patent Information
- Application Number
- CN202420991391.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing laboratories have many equipment for hydrolysis of small experimental animals to treat cadavers with alkali, which is scattered and inconvenient to use, long processing cycles, and potential risk of disease transmission. Especially in small animal experiments, the treatment efficiency is low when the number is small. .
A harmless treatment device for experimental animals including crushers, cooking tanks, waste gas treatment tanks and solid-liquid separation devices was designed. The materials were crushed through the crusher by using alkali-added hydrolysis and sterilization method, and the steaming tanks were heated at high temperatures, and the waste gas was The treatment tank treats waste gas, and the solid-liquid separation device performs solid-liquid separation of residues to achieve water recovery and purification of waste gas.
It has achieved safe and fast harmless treatment of experimental animals, with fewer equipment and small space, and is suitable for laboratory use, reducing water resources waste and air pollution, comply with energy conservation and emission reduction requirements, and simplifying the treatment process.
Smart Images
Figure CN222175354U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of harmless treatment of animals, in particular to a device for harmless treatment of small animals after experiments. Background Art
[0002] Laboratory animals are the foundation and important supporting conditions for life science research. They play an irreplaceable role in scientific research, teaching, production, and verification in the fields of life sciences such as medicine and biomedicine. However, laboratory animals often have the potential risk of disease transmission. If they are not properly handled, there is a risk of disease transmission and even public health incidents. In order to prevent the growth of bacteria and the spread of diseases, it is usually necessary to treat laboratory animals harmlessly. The laboratory animal carcass treatment process generally adopts alkaline hydrolysis sterilization or high temperature and high pressure sterilization technology. It has the characteristics of high biosafety, strong sterilization ability, and green environmental protection. It is an ideal laboratory animal carcass harmless treatment method. However, the existing laboratories use a large number of equipment for alkaline hydrolysis to treat animal carcasses, which are scattered and inconvenient to use, have a long treatment cycle, and many intermediate links. In addition, most laboratories of major scientific research institutions in my country are mainly small animal experiments, and the number of animals in each experiment is small. They need to accumulate to a certain number before they are harmlessly treated together. Not only does it extend the treatment cycle, but it also increases potential risks. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a small-sized harmless treatment device for experimental animals which is convenient for laboratory use.
[0004] The technical solution of the utility model is: a harmless treatment device for experimental animals, comprising a crusher, a cooking pot, a waste gas treatment pot and a solid-liquid separation device, the crusher comprising a crusher pot, a crusher cover and a reamer, the crusher pot is open on the top, the crusher cover is buckled at the open position, the bottom of the crusher pot is provided with a discharge port and a discharge valve, the reamer is arranged at the middle position of the bottom of the crusher pot, and is connected with a driving device outside the crusher pot through a rotating shaft, the cooking pot and the waste gas treatment pot are both containers with an open top and an upper cover, the cooking pot is heated by an electric heater, the upper cover of the cooking pot is provided with a feed port and is connected with the discharge valve of the crusher pot through a pipeline, an adsorption liquid is arranged in the waste gas treatment tank, and its upper cover is provided with an air inlet pipe and an air outlet, the lower end of the air inlet pipe passes below the liquid level in the tank, the upper end of the air inlet pipe is communicated with the top of the cooking pot through a pipeline, the bottom of the cooking pot is provided with a discharge port and is connected with the solid-liquid separation device through a valve and a pipeline.
[0005] The technical effect of the utility model is: it has the advantages of simple process, safe and fast treatment, and less manual intervention. This product involves less equipment, small size, and less space, and is suitable for laboratory use. The method of alkaline hydrolysis sterilization is suitable for harmless treatment of various small experimental animals. The water used in the treatment process can be recycled and reused to reduce the waste of water resources; the waste gas is discharged after treatment to reduce air pollution; by separating the solid and liquid of the residue after hydrolysis and collecting it, the residue can be reused to reduce waste, which meets the requirements of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 It is a schematic diagram of the structure of the utility model;
[0007] Figure 2 This is a schematic diagram of the structure of the crusher part of the utility model;
[0008] Figure 3 It is a structural schematic diagram of the solid-liquid separation device part of the utility model. DETAILED DESCRIPTION
[0009] like Figure 1 , 2 As shown in Figure 3, the harmless treatment device for experimental animals includes a crusher 1, a cooking tank 2, a waste gas treatment tank 3 and a solid-liquid separation device 4. The crusher 1 includes a crusher tank 5, a crusher cover 6 and a reamer 7. The crusher tank 5 is open, and the crusher cover 6 is buckled at the open position. The bottom of the crusher tank 5 is provided with a discharge port and a discharge valve 8. The reamer 7 is arranged at the middle position of the bottom of the crusher tank 5 and is connected to a driving device 9 outside the crusher tank 5 through a rotating shaft. The cooking tank 2 and the waste gas treatment tank 3 are connected to the solid-liquid separation device 4. The crusher 1 includes a crusher tank 5, a crusher cover 6 and a reamer 7. The crusher tank 5 is open, and the crusher cover 6 is buckled at the open position. The bottom of the crusher tank 5 is provided with a discharge port and a discharge valve 8. The reamer 7 is arranged at the middle position of the bottom of the crusher tank 5 and is connected to a driving device 9 outside the crusher tank 5 through a rotating shaft. The tanks 3 are all containers with open tops and upper covers. The cooking tank 2 is heated by an electric heater 10. The upper cover of the cooking tank 2 is provided with a feed port and is connected to the discharge valve 8 of the crusher tank 5 through a pipeline. The waste gas treatment tank 3 is provided with an adsorption liquid, and its upper cover is provided with an air inlet pipe 11 and an air outlet 12. The lower end of the air inlet pipe 11 passes below the liquid level in the tank, and the upper end of the air inlet pipe 11 is connected to the top of the cooking tank 2 through a pipeline. The bottom of the cooking tank 2 is provided with a discharge port and is connected to the solid-liquid separation device 4 through a valve 13 and a pipeline. The drive device for driving the reamer is driven by a motor. After weighing the carcasses of small experimental animals, they can be directly placed in the crusher. After putting a considerable amount of alkali solution in the crusher tank, the crusher can be started for crushing operation. The crushing time is set according to the amount of material. A sealing ring can be set between each tank body and its cover body for sealing connection, and a locking device can be set between the tank body and the cover body. If high temperature and high pressure sterilization is adopted, accessories such as safety valves and pressure gauges can be set on the corresponding tank body or cover body.
[0010] The discharge valve 8 is a plunger valve, the inlet end of the discharge valve 8 is connected to the crusher tank 5, the blocking end face of the discharge valve plunger is in sealing cooperation with the inlet end of the discharge valve 8, and the outlet end of the discharge valve 8 is arranged on the side of the valve body. The blocking end face of the discharge valve plunger is substantially flush with the bottom of the cooking tank, and the inlet end of the discharge valve is located at the low point of the crusher tank, so that there is no dead angle when the reamer is crushing, and the crushing is more thorough.
[0011] The inner wall of the crusher tank 5 is provided with an inwardly convex vertical edge 14. When the reamer stirs the mixed liquid to rotate, the vertical edge can make the material change the direction of movement and contact the reamer again.
[0012] The side wall of the crusher tank 5 is provided with a spray head 15. The spray head can be used to spray alkali solution to mix with the material, or to clean the tank body. The crusher cover can also be used as a weighing plate, which can be directly flipped and snapped onto the crusher tank after weighing. The spray head can be designed as a self-rotating structure so that the spray angle can take into account the machine cover, so that the machine cover and the tank body can be cleaned and disinfected by spraying after operation to reduce the risk of contamination escaping.
[0013] The tank bodies of the crusher 1, the cooking tank 2 and the waste gas treatment tank 3 are all made of transparent materials for easy observation. Peep windows can also be provided for easy observation.
[0014] The solid-liquid separation device 4 includes a separation cylinder 16, a driving screw 17 and a pressing block 18. The separation cylinder 16 is a cylindrical body with open ends at the upper and lower ends. A bottom filter cover 19 is provided at the bottom of the separation cylinder 16. The bottom filter cover 19 is provided with a plurality of through holes. A filter screen 20 is provided on the inner surface of the bottom filter cover 19 to cover the through holes. One end of the bottom filter cover 19 is hinged to the separation cylinder 16, and the other end is connected to the separation cylinder 16 through a locking device. A top cover is provided on the top of the separation cylinder 16. The driving screw 17 is vertically arranged at the axis of the separation cylinder 16 and is screwed to the top cover of the separation cylinder 16. The pressing block 18 is cylindrical. The pressing block 18 can be slidably arranged in the separation cylinder 16 up and down and is rotatably connected to the lower end of the driving screw 17. The side wall of the separation cylinder 16 has a hole and is connected to the discharge port of the cooking tank 2 through a pipeline. The driving screw can be driven manually or by a motor. The cooked material enters the space below the briquette. After natural percolation, the liquid is discharged from the bottom filter cover. The briquette is then pressurized to further separate the solid and liquid. Finally, the bottom filter cover is opened to take out the solid phase.
[0015] The locking device comprises a locking screw 21 and a locking nut 22 . The locking screw 21 is hinged on the separation cylinder 16 . The bottom filter cover 19 is provided with a locking portion 23 with a “U”-shaped opening that cooperates with the locking screw 21 and the locking nut 22 .
[0016] A liquid collecting tank 24 for collecting filtrate is provided below the solid-liquid separation device 4 .
[0017] This device mainly uses potassium hydroxide, a strong alkali substance, to hydrolyze animal tissues and kill various pathogenic microorganisms including prions under high temperature and high pressure, thereby achieving harmless treatment. The main process flow of the experimental animal alkali hydrolysis sterilization device includes loading and weighing, adding alkali, heating and heating, decomposition and sterilization, cooling (neutralization), treatment product discharge meeting standards, removing residues, cleaning and disinfection, automatic sealing and other processes.
[0018] The main feature of the high temperature and normal pressure method is that the designed sterilization temperature is not higher than 100°C and no pressurization is required. The sterilization tank is also not a pressure vessel, but the processing time is relatively long, which is suitable for processing experimental animals with small size and easy to decompose. The sterilization temperature of the high temperature and high pressure method can be as high as 150°C, the sterilization pressure is generally 0.4 MPa-0.6 MPa, and the sterilization maintenance time is generally 2 h-3 h. The processing time is short, which is suitable for processing experimental animals with large size and difficult to decompose.
Claims
1. A device for harmless treatment of experimental animals, comprising a crusher (1) and a cooking tank (2), characterized in that: It also includes an exhaust gas treatment tank (3) and a solid-liquid separation device (4). The crusher (1) includes a crusher tank (5), a crusher cover (6) and a reamer (7). The crusher tank (5) is open at the top, and the crusher cover (6) is buckled on the open part. The bottom of the crusher tank (5) is provided with a discharge port and a discharge valve (8). The reamer (7) is arranged at the middle position of the bottom of the crusher tank (5) and is connected to a driving device (9) outside the crusher tank (5) through a rotating shaft. The cooking tank (2) and the exhaust gas treatment tank (3) are both open at the top and are equipped with an upper The cooking tank (2) is heated by an electric heater (10), the upper cover of the cooking tank (2) is provided with a feed port and is connected to a discharge valve (8) of a crusher tank (5) through a pipeline, the waste gas treatment tank (3) is provided with an adsorption liquid, and the upper cover is provided with an air inlet pipe (11) and an air outlet (12), the lower end of the air inlet pipe (11) is connected to the liquid level in the tank, the upper end of the air inlet pipe (11) is connected to the top of the cooking tank (2) through a pipeline, and the bottom of the cooking tank (2) is provided with a discharge port and is connected to a solid-liquid separation device (4) through a valve (13) and a pipeline.
2. The harmless treatment device for experimental animals according to claim 1, characterized in that: The discharge valve (8) is a plunger valve, the inlet end of the discharge valve (8) is connected to the crusher tank (5), the blocking end face of the discharge valve plunger is in sealing cooperation with the inlet end of the discharge valve (8), and the outlet end of the discharge valve (8) is arranged on the side of the valve body.
3. The harmless treatment device for experimental animals according to claim 1, characterized in that: The inner wall of the crusher tank (5) is provided with an inwardly convex vertical ridge (14).
4. The harmless treatment device for experimental animals according to claim 1, characterized in that: The side wall of the crusher tank (5) is provided with a spray head (15).
5. The harmless treatment device for experimental animals according to claim 1, characterized in that: The tank bodies of the crusher (1), the cooking tank (2) and the waste gas treatment tank (3) are all made of transparent materials.
6. The harmless treatment device for experimental animals according to claim 1, characterized in that: The solid-liquid separation device (4) comprises a separation cylinder (16), a driving screw (17) and a pressing block (18). The separation cylinder (16) is a cylindrical body with open ends at the upper and lower ends. A bottom filter cover (19) is provided at the bottom of the separation cylinder (16). The bottom filter cover (19) is provided with a plurality of through holes. A filter screen (20) is provided on the inner surface of the bottom filter cover (19) and covers the through holes. One end of the bottom filter cover (19) is hinged to the separation cylinder (16), and the other end is connected to the separation cylinder (16) through a locking device. The separation cylinder (16) is connected to the separation cylinder (16), a top cover is provided on the top of the separation cylinder (16), a driving screw (17) is vertically arranged at the axis of the separation cylinder (16) and is screwed to the top cover of the separation cylinder (16), a pressing block (18) is cylindrical, the pressing block (18) is slidably arranged in the separation cylinder (16) and is rotatably connected to the lower end of the driving screw (17), and a hole is opened on the side wall of the separation cylinder (16) and is connected to the discharge port of the cooking tank (2) through a pipeline.
7. The harmless treatment device for experimental animals according to claim 6, characterized in that: The locking device comprises a locking screw (21) and a locking nut (22). The locking screw (21) is hinged on the separation cylinder (16). The bottom filter cover (19) is provided with a locking portion (23) with a "U"-shaped opening that cooperates with the locking screw (21) and the locking nut (22).
8. The harmless treatment device for experimental animals according to any one of claims 1 to 7, characterized in that: A liquid collecting tank (24) is provided below the solid-liquid separation device (4).