A carrier and bacterial liquid mixing device for producing composite bacterial agent

Abstract

The invention relates to the technical field of composite bacterial agent production, and discloses a carrier and bacterial liquid mixing device for composite bacterial agent production, comprising a tank body for mixing the carrier and the bacterial liquid, and a vortex oscillator for placing the tank body, wherein the upper end of the tank body is provided with a tank cover for sealing the inside of the tank body, and the tank body is provided with a mesh ring for storing the carrier; one side of the upper end of the tank body is connected with an air pipe for pumping air from the tank body, and the bottom end of the tank body is provided with a liquid discharge pipe for discharging the bacterial liquid, and the outer wall axis of the tank cover is connected with an external connecting ring that is sealed and fitted with the outer wall of the tank body. When the bacterial liquid is mixed with a porous carrier, the tank body is pumped to increase the negative pressure in the tank body, and the residual gas in the holes of the porous carrier is pumped out, so that the bacterial liquid can quickly enter the holes of the porous carrier, effectively reducing the soaking time, increasing the microbial load rate, and improving the mixing efficiency of the bacterial liquid and the porous carrier.

Description

Technical Field

[0001] This invention relates to the field of compound microbial agent production technology, and in particular to a carrier and microbial liquid mixing device for compound microbial agent production. Background Technology

[0002] Kitchen waste refers to organic waste such as scraps, waste materials, leftover food, and kitchen waste generated in daily life. Current methods for treating kitchen waste include incineration and landfill. These methods have certain drawbacks, such as high initial investment, high operating costs, waste of land resources, and pollution of water and air. Therefore, these methods are not suitable for widespread application. Kitchen waste contains some organic matter, and turning it into organic fertilizer can increase crop yields. Organic fertilizer can be prepared by fermenting kitchen waste with compound microbial agents. The resulting organic fertilizer has a high organic matter content. The compound microbial agent preparation process involves soaking a carrier with various bacterial solutions in sequence, followed by drying.

[0003] Chinese patent CN114736830B discloses a composite microbial agent for treating kitchen waste and its preparation method, as well as a method for producing organic fertilizer from the composite microbial agent for treating kitchen waste. In this patent, the composite microbial agent for treating kitchen waste is a porous carrier loaded with a variety of microbial agents, and the porous carrier is modified sepiolite, modified maifanite, or modified zeolite. The porous carrier needs to be soaked in a variety of bacterial solutions in sequence to obtain the composite microbial agent.

[0004] Because the porous carrier has many pores, although it greatly improves the loading rate of various microorganisms, air is trapped in the pores during the soaking process. The air cannot be discharged well, which causes the bacterial solution to not flow evenly into the pores of the porous carrier. As a result, the loading rate of microorganisms on the porous carrier is not high, which affects the efficiency of organic fertilizer preparation in the later stage.

[0005] Therefore, a device for mixing carrier and bacterial solution for the production of compound bacterial agents is invented. Summary of the Invention

[0006] The purpose of this invention is to provide a carrier and bacterial solution mixing device for the production of compound bacterial agents, in order to solve the problem that during the soaking process, air cannot be well discharged from the small holes, resulting in the bacterial solution not flowing evenly into the pores of the porous carrier, which leads to a low microbial loading rate on the porous carrier and affects the efficiency of subsequent organic fertilizer preparation. In addition, in the laboratory research, it is necessary to shake and cultivate for 10 to 12 hours to ensure the bacterial adhesion rate of the porous carrier, but the long cultivation time is not conducive to subsequent mass production by enterprises.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a carrier and bacterial liquid mixing device for the production of compound bacterial agents, comprising a tank for mixing the carrier and bacterial liquid, and a vortex shaker for placing the tank, wherein the upper end of the tank is provided with a tank cover for sealing the inside of the tank, and a mesh ring for storing the carrier is provided inside the tank.

[0008] The upper side of the tank is connected to an air pipe for evacuating the tank. The bottom of the tank is equipped with a drain pipe for discharging the bacterial solution. An outer ring is axially connected to the outer wall of the tank cover and is sealed to fit the outer wall of the tank. An inner groove communicating with the inside of the tank is opened in the tank cover. A threaded rod is installed through the tank cover. A piston plate that moves back and forth along the inner wall of the inner groove is installed on the threaded rod. An extension bracket connected to the top of the threaded rod is provided on the outer ring. At least three suction pipes for extracting the bacterial solution are arranged in a ring on the outer wall of the outer ring. An inlet hole is opened on the outer wall of the tank. When the outer ring rotates, the outlet of each suction pipe can be aligned with the inlet hole in sequence. When one of the suction pipes is aligned with the inlet hole on the outer wall of the tank, the suction pipe delivers the bacterial solution to be mixed into the tank. At this time, the air pipe evacuates the tank to create a negative pressure state inside the tank.

[0009] Preferably, a pressing ring seat that seals and fits against the outer wall of the tank is connected below the outer ring. The pressing ring seat has an arc-shaped groove corresponding to the number of liquid extraction pipes, and an insertion groove corresponding to and communicating with the arc-shaped groove is provided on the outer wall of the tank.

[0010] Preferably, each of the interlocking grooves is provided with a pressing member that can move along the thickness direction of the interlocking groove. When the pressing member moves towards the end of its stroke in the direction close to the arc groove, one end of the pressing member is in contact with the inner wall of the arc groove.

[0011] Preferably, the inner wall of the tank is provided with a limiting plate for limiting the movement of the pressing component, and a spring for resetting is connected below the pressing component.

[0012] Preferably, the can lid is provided with a push ring that can move up and down, and a conical ring is connected below the push ring.

[0013] Preferably, the end of the pressure member located inside the tank is an inclined end. When the conical ring moves vertically downward, its outer wall abuts against the inclined end of the pressure member. The conical ring continues to move downward to the end of its stroke, which drives the pressure member to fit against the inner wall of the arc groove and divides the inner cavity of the arc groove into two relatively sealed chambers.

[0014] Preferably, a lifting assembly that engages with the mesh ring is installed on the inner wall of the upper end of the tank. The lifting assembly includes a lifting ring for positioning the mesh ring and a driving structure for driving the lifting ring to move vertically.

[0015] Preferably, the lower end of the lifting ring is connected to a plurality of oblique pawls, and the upper end of the mesh ring is connected to a locking ring rod, which is movably engaged with the oblique pawls.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. The vortex shaker of this invention drives the tank to vortex oscillate by placing a ring seat, ensuring uniform mixing of the carrier and bacterial solution. The tank is equipped with a mesh ring for storing the carrier. The bacterial solution to be mixed is added to the tank containing the porous carrier. The mixed tank is placed in a sealed box and a vacuum pump applies a certain vacuum negative pressure to it, extracting the residual gas in the pores of the porous carrier, allowing the bacterial solution to quickly enter the pores of the porous carrier. Then, it is placed on the vortex shaker for oscillation, which greatly reduces the oscillation time. Before soaking with different bacterial solutions, the previous steps are repeated to obtain a porous carrier loaded with multiple microorganisms. After drying, a composite bacterial agent is obtained.

[0018] 2. This invention uses a rotating lid to connect to different bacterial solution delivery pipes. During rotation, a certain negative pressure is generated inside the lid. After the tank body is connected to the bacterial solution delivery pipe, the internal negative pressure is used as the initial suction force for siphoning. Rotation enables the bacterial solution delivery pipe to be connected to the tank body while simultaneously extracting the bacterial solution. The tank body can also be evacuated by an air pump. When the bacterial solution is mixed with the porous carrier, air is evacuated from the tank body, increasing the negative pressure inside the tank body and removing residual gas from the pores of the porous carrier. This allows the bacterial solution to quickly enter the pores of the porous carrier, effectively reducing soaking time, increasing the microbial load rate, and improving the mixing efficiency of the bacterial solution and the porous carrier.

[0019] 3. This invention can close the inlet hole by rotating the outer ring. When the outer ring rotates one revolution, the liquid extraction pipes on its surface successively coincide with the inlet hole. When the outer ring rotates, it drives the threaded rod to rotate. The rotation of the threaded rod drives the piston plate to move upward. The upward movement of the piston plate creates negative pressure in the tank. When the outer ring rotates to the point where one of the liquid extraction pipes is connected to the tank, the internal negative pressure is used as the initial suction force of the siphon. By rotating, the bacterial liquid delivery pipe is connected to the tank while the bacterial liquid is extracted. The inlet hole can be closed by rotating the outer ring. When the pressure member rotates to the end of the arc groove, the conical ring moves upward. The pressure member is no longer squeezed by the conical ring and is reset to the insertion groove by the spring. At this time, the outer ring can rotate arbitrarily, and different liquid extraction pipes can be adjusted to align with the inlet hole. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0022] Figure 3 This is a partial sectional view of the entire embodiment of the present invention, 2nd embodiment;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point A;

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged view of point B;

[0026] Figure 7 This is a schematic diagram of the pressing structure of the pressing component of the present invention;

[0027] Figure 8 This is a top-view perspective view of the internal structure of the outer ring and the pressing ring seat of the present invention;

[0028] Figure 9 This is a top cross-sectional view of the arc-shaped groove structure of the present invention;

[0029] Figure 10 This is a top cross-sectional view of the arc-shaped groove structure of the outer ring and the press-fit ring seat after rotation according to the present invention;

[0030] Figure 11 This is a schematic diagram of the lifting component structure of the present invention.

[0031] In the diagram: 1. Tank body; 11. Mesh ring; 111. Locking ring rod; 12. Air pipe; 13. Drain pipe; 14. Liquid inlet; 15. Insertion groove; 151. Pressing component; 16. Limiting plate; 2. Vortex oscillator; 3. Tank cover; 31. External connecting ring; 32. Piston plate; 33. Pressing ring seat; 331. Arc groove; 332. Exhaust port; 34. Push ring; 341. Conical ring; 4. Liquid extraction pipe; 6. Lifting assembly; 61. Lifting ring; 611. Angled pawl; 62. Drive structure; 7. First chamber; 8. Second chamber. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This application provides a device for mixing a carrier and bacterial solution for the production of compound microbial agents. A tank 1 is designed for mixing the porous carrier and bacterial solution. During the mixing process, the tank lid 3 is rotated to connect to different bacterial solution delivery pipes. During rotation, a certain negative pressure is generated inside the tank lid 3. After the tank 1 is connected to the bacterial solution delivery pipes, the internal negative pressure serves as the initial suction force for siphoning. Rotation connects the bacterial solution delivery pipes to the tank 1 while simultaneously extracting the bacterial solution. The tank 1 can also be evacuated using an air pump. After the bacterial solution and porous carrier are mixed, evacuation inside the tank 1 increases the negative pressure, removing residual gas from the pores of the porous carrier. This allows the bacterial solution to quickly enter the pores of the porous carrier, effectively reducing soaking time, increasing the microbial load rate, and improving the mixing efficiency of the bacterial solution and porous carrier.

[0034] Example 1: Refer to Figure 1 This invention provides a first embodiment of a carrier and bacterial solution mixing device for the production of compound microbial agents. The device includes a tank 1 for mixing the carrier and bacterial solution, and a vortex oscillator 2 for placing the tank 1. The vortex oscillator 2 has a placement groove. A placement ring seat is located below the tank 1, and the placement ring seat engages with the placement groove. A tank cover 3 for sealing the inside of the tank 1 is provided at the upper end. The vortex oscillator 2 drives the tank 1 to vortex oscillate through the placement ring seat, ensuring uniform mixing of the carrier and bacterial solution. A mesh ring 11 for storing the carrier is provided inside the tank 1. When placing a porous carrier in container 1, add the bacterial solution to be mixed. Place the mixed container 1 into a sealed box and apply a certain vacuum negative pressure to it using a vacuum pump to extract the residual gas in the pores of the porous carrier, allowing the bacterial solution to quickly enter the pores of the porous carrier. Then place it on a vortex shaker 2 for oscillation. Compared with existing oscillation techniques, this method increases the oscillation efficiency by 60%-80% and greatly reduces the oscillation time. Before changing to different bacterial solutions for soaking, repeat the previous steps to obtain a porous carrier loaded with multiple microorganisms. After drying, a composite bacterial agent is obtained.

[0035] Example 2: Refer to Figure 2 - Figure 4 This is the second embodiment of the present invention. This embodiment differs from the first embodiment. During the implementation of the first embodiment, it was found that each time the bacterial solution was changed, the tank 1 needed to be transferred to the vacuum equipment. Since the compound bacterial agent needs to be soaked in at least three bacterial solutions, the tank 1 needs to be moved back and forth. During the vacuuming process, the tank 1 and the lid 3 need to be opened. In addition, the lid needs to be opened repeatedly when changing different bacterial solutions, which makes it easy for impurities to enter the tank 1, affecting the quality of the bacterial solution and thus affecting the quality of the compound bacterial agent after production.

[0036] To solve the above problems, this embodiment improves the tank body 1 and the tank cover 3 so that the inside of the tank body 1 is in a closed state during multiple liquid filling and air extraction processes. Liquid filling and air extraction can be carried out at the same place without the need for back-and-forth transfer, and impurities are prevented from entering the tank body 1 and affecting the quality of the bacterial solution.

[0037] It includes a tank 1 for mixing the carrier and bacterial solution, and a vortex shaker 2 for placing the tank 1. The upper end of the tank 1 is provided with a tank cover 3 for sealing the inside of the tank 1, and a mesh ring 11 for storing the carrier is provided inside the tank 1.

[0038] The upper end of the tank body 1 is connected to an air pipe 12 for evacuating air from the tank body 1. The bottom end of the tank body 1 is provided with a drain pipe 13 for discharging the bacterial solution. The outer wall of the tank cover 3 is axially connected to an outer ring 31 that seals tightly against the outer wall of the tank body 1. At least three suction pipes 4 for extracting the bacterial solution are arranged in a circular array on the outer wall of the outer ring 31. An inlet hole 14 is provided on the outer wall of the tank body 1. When the outer ring 31 rotates, the outlet of each suction pipe 4 sequentially coincides with the inlet hole 14. When one suction pipe 4 coincides with the inlet hole 14 on the outer wall of the tank body 1... When the mixture is ready, the extraction pipe 4 delivers the bacterial solution to be mixed into the tank 1. At this time, the air pipe 12 draws air to create a negative pressure state inside the tank 1. One end of the air pipe 12 is connected to an air pump. The air pipe 12 can both draw air from the tank 1 and inject air into the tank 1. During the mixing process of the bacterial solution and the porous carrier, the tank 1 is kept under negative pressure. The residual gas in the pores of the porous carrier is extracted, allowing the bacterial solution to quickly enter the pores of the porous carrier. This effectively reduces the soaking time, increases the microbial load rate, and improves the mixing efficiency of the bacterial solution and the porous carrier.

[0039] The outer ring 31 is rotated to connect to different bacterial liquid delivery pipes. During the rotation, a certain negative pressure is generated inside the outer ring 31. After the tank 1 is connected to the bacterial liquid delivery pipe, the negative pressure inside is used as the initial suction force for siphoning. The other end of each suction pipe 4 is inserted into the corresponding bacterial liquid container. The container containing the bacterial liquid is higher than the tank 1. The liquid level difference ensures that the connection between the suction pipe 4 and the tank 1 meets the siphoning conditions. The rotation of the outer ring 31 first puts the tank 1 into a negative pressure state, and then the suction pipe 4 coincides with the liquid inlet hole 14 on the outer wall of the tank 1. This serves as the initial suction force for the suction pipe 4 to siphon. The rotation enables the bacterial liquid delivery pipe to be connected to the tank 1 while the bacterial liquid is being extracted.

[0040] The can lid 3 has an inner groove communicating with the inside of the can body 1. A threaded rod is installed through the can lid 3, and a piston plate 32 is installed on the threaded rod, which moves back and forth along the inner wall of the inner groove. The piston plate 32 moves along the threaded rod in multiple segments, and the number of segments matches the number of suction pipes 4. An extension bracket connected to the top of the threaded rod is provided on the outer ring 31. When the outer ring 31 rotates, it drives the threaded rod to rotate. The rotation of the threaded rod drives the piston plate 32 to move upward. The upward movement of the piston plate 32 creates a negative pressure inside the can body 1. When the outer ring 31 rotates to the point where one of the suction pipes 4 communicates with the inside of the can body 1, the internal negative pressure is used as the initial suction force for siphoning. It should be noted that the air extraction of the trachea 12 in this application is mainly used to extract air from the inner pores of the carrier when mixing the bacterial liquid with the porous carrier. Since a relative vacuum needs to be created inside the can body 1, The required suction force is very large, while the suction force required to achieve the siphon principle is not very large. If the suction force generated by the pump body is used to act on the siphon principle, the suction force of the pump needs to be adjusted during the pumping process. This adjustment is required every time the siphon principle and negative pressure are implemented, which makes the process cumbersome and affects the later mass production of the enterprise. Now, by changing the structure of the can cover 3, a certain negative pressure is generated during the rotation process to connect the liquid extraction pipe 4 and the inside of the can 1, which is used to generate the suction force required for the siphon principle. The bacterial liquid is drawn into the can 1 through the liquid extraction pipe 4. The liquid inlet hole 14 can be closed by rotating the outer ring 31. When the outer ring 31 rotates one revolution, the liquid extraction pipe 4 on its surface coincides with the liquid inlet hole 14 in sequence. At this time, the piston plate 32 also moves up to the end of the stroke. When used again, it is necessary to rotate one revolution in the opposite direction to reset the piston plate 32.

[0041] Example 3: Refer to Figure 5 - Figure 10 This is the third embodiment of the present invention. Unlike the second embodiment, this embodiment has a pressing ring seat 33 connected below the outer ring 31, which is sealed and fitted to the outer wall of the tank body 1. The pressing ring seat 33 has arc-shaped grooves 331 corresponding to the number of suction pipes 4. A small vent hole 332 is provided at the tail end of each arc-shaped groove 331. Furthermore, the outer wall of the tank body 1 has insertion grooves 15 corresponding to and communicating with the arc-shaped grooves 331. Each insertion groove 15 is provided with a pressing member 151 that can move along the thickness direction of the insertion groove 15. When the pressing member 151 moves towards the arc-shaped groove 331 to the end of its stroke, one end of the pressing member 151... The inner wall of the arc-shaped groove 331 fits snugly. A limiting plate 16 is provided on the inner wall of the tank body 1 for limiting the movement of the pressing member 151. A spring for resetting is connected below the pressing member 151. A push ring 34 capable of moving up and down is provided inside the tank cover 3. A conical ring 341 is connected below the push ring 34. One end of the pressing member 151 inside the tank body 1 is an inclined end. When the conical ring 341 moves vertically downwards, its outer wall abuts against the inclined end of the pressing member 151. The conical ring 341 continues to move downwards to the end of its stroke. Through the downward movement of the push ring 34, the conical ring 341 presses the pressing member 151 from the insertion groove 15 into the arc-shaped groove 331. Figure 9 As shown, the pressing member 151 fits against the inner wall of the arc-shaped groove 331, dividing the inner cavity of the arc-shaped groove 331 into a first chamber 7 and a second chamber 8. The first chamber 7 communicates with the inside of the tank 1 through the insertion groove 15, and the second chamber 8 communicates with the outside through the vent hole 332. The outer ring 31 and the pressing ring seat 33 rotate synchronously, as shown. Figure 10 As shown, the pressing member 151 remains stationary, and while the pressing member 151 compresses the second chamber 8, the first chamber 7, which is connected to the tank body 1, gradually increases in size, increasing the negative pressure inside the tank body 1. When the outer ring 31 and the pressing ring seat 33 rotate until the outlet of one of the liquid extraction pipes 4 coincides with the inlet hole 14, the outer ring 31 and the pressing ring seat 33 stop rotating. The negative pressure inside the tank body 1 is used as the initial suction force of the siphon, and the bacterial liquid is drawn into the tank body 1 through the liquid extraction pipe 4. The inlet hole 14 can be closed by rotating the outer ring 31. When the pressing member 151 rotates to the end of the arc groove 331, the conical ring 341 moves upward, and the pressing member 151 is no longer squeezed by the conical ring 341 and is reset to the insertion groove 15 by the spring. At this time, the outer ring 31 can rotate arbitrarily, and different liquid extraction pipes 4 and inlet holes 14 can be aligned arbitrarily.

[0042] Example 4: Refer to Figure 11 This is the fourth embodiment of the present invention. This embodiment is different from the second embodiment. During the implementation of the second embodiment, it was found that negative pressure can be achieved by evacuating air from the tank 1 with an air pump, or air can be injected into the tank 1 with an air pump to make the bacterial liquid drain away quickly. However, during the process of pressurizing the liquid to drain, the flow rate of the bacterial liquid is accelerated, which can easily wash away the bacteria attached to the porous carrier and affect the loading rate.

[0043] To solve the above problems, this embodiment adjusts the height of the mesh ring 11 by using the drive structure 62. The mesh ring 11 can be moved upward to separate the porous carrier from the bacterial liquid before the tank 1 is pressurized and drained.

[0044] A lifting assembly 6 is installed on the inner wall of the upper end of the tank body 1 to connect with the mesh ring 11. The lifting assembly 6 includes a lifting ring 61 for locking the mesh ring 11 and a driving structure 62 for driving the lifting ring 61 to move vertically. The lower end of the lifting ring 61 is connected to several oblique pawls 611. The upper end of the mesh ring 11 is connected to a locking ring rod 111. The locking ring rod 111 is movably locked with the oblique pawls 611. The driving structure 62 can drive the mesh ring 11 to adjust its height, so as to achieve pressurization and rapid liquid discharge without affecting the adhesion rate of bacteria in the porous carrier. The upper end of the mesh ring 11 is locked on the oblique pawls 611 by the locking ring rod 111, which makes it easy to remove the mesh ring 11.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A carrier and bacterial solution mixing device for producing a composite bacterial agent, comprising a tank body (1) for mixing the carrier and the bacterial solution, and a vortex oscillator (2) for placing the tank body (1), characterized in that: The upper end of the tank body (1) is provided with a tank cover (3) for sealing the interior of the tank body (1), and a net ring (11) for storing a carrier is provided inside the tank body (1); The upper end of the tank body (1) is connected to an air pipe (12) for evacuating air from the tank body (1), and the bottom end of the tank body (1) is provided with a liquid discharge pipe (13) for discharging bacterial liquid. The outer wall of the tank cover (3) is axially connected to an outer ring (31) that is sealed and fitted with the outer wall of the tank body (1). The tank cover (3) is provided with an inner groove that is connected to the tank body (1). A threaded rod is installed through the tank cover (3), and a piston plate (32) that reciprocates along the inner wall of the inner groove is installed on the threaded rod. The outer ring (31) is provided with a piston plate (32) that is connected to the top of the threaded rod. The outer wall of the external connecting ring (31) has at least three liquid extraction tubes (4) for extracting bacterial liquid in a circular array, and the outer wall of the tank body (1) is provided with a liquid inlet hole (14). When the external connecting ring (31) rotates, the liquid outlets of each liquid extraction tube (4) can be sequentially overlapped with the liquid inlet hole (14). When one of the liquid extraction tubes (4) overlaps with the liquid inlet hole (14) on the outer wall of the tank body (1), the liquid extraction tube (4) transports the bacterial liquid to be mixed into the tank body (1). At this time, the air pipe (12) draws air to place the tank body (1) in a negative pressure state. A press-fit ring seat (33) is connected below the external connection ring (31) and is in sealing contact with the outer wall of the tank body (1). The press-fit ring seat (33) is provided with arc grooves (331) corresponding to the number of the liquid extraction tubes (4). The outer wall of the tank body (1) is provided with insertion grooves (15) corresponding to and communicating with the arc grooves (331). The insertion groove (15) is provided with a pressing piece (151) capable of moving along the thickness direction of the insertion groove (15); when the pressing piece (151) moves toward the arc groove (331) to the end of the stroke, one end of the pressing piece (151) is in contact with the inner wall of the arc groove (331); The inner wall of the tank body (1) is provided with a limiting plate (16) for limiting the movement of the pressing member (151), and a spring for resetting is connected below the pressing member (151).

2. The carrier and bacterial solution mixing device for composite bacterial agent production according to claim 1, characterized in that: A push ring (34) capable of moving up and down is arranged inside the can cover (3), and a conical ring (341) is connected below the push ring (34).

3. The carrier and bacterial solution mixing device for composite bacterial agent production according to claim 2, characterized in that: One end of the pressing member (151) located inside the tank body (1) is an oblique end. When the conical ring (341) moves vertically downward, its outer wall abuts against the oblique end of the pressing member (151). The conical ring (341) continues to move downward to the end of the stroke, so as to drive the pressing member (151) to fit against the inner wall of the arc groove (331) and divide the inner cavity of the arc groove (331) into two relatively sealed chambers.

4. The carrier and bacterial solution mixing device for composite bacterial agent production according to claim 3, characterized in that: A lifting assembly (6) connected to the net ring (11) is installed on the inner wall of the upper end of the tank body (1), and the lifting assembly (6) comprises a lifting ring (61) for locking the net ring (11) and a driving structure (62) for driving the lifting ring (61) to move vertically.

5. The carrier and bacterial solution mixing device for composite bacterial agent production according to claim 4, characterized in that: The lower end of the lifting ring (61) is connected to a plurality of oblique pawls (611), and the upper end of the net ring (11) is connected to a locking ring rod (111), and the locking ring rod (111) is movably locked with the oblique pawls (611).

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