Strain adding equipment for producing bio-organic fertilizer

Abstract

The invention discloses strain adding equipment for bio-organic fertilizer production, and relates to the technical field of fertilizer manufacturing. The device further comprises a plurality of liquid injection pipes. A first piston is vertically and slidably connected into the liquid injection pipe. The lower end of the inner wall of the liquid injection pipe is vertically, elastically and slidably connected with a second piston. A plurality of switching assemblies are elastically and rotatably arranged at the lower end of the liquid injection pipe in a circumferential array mode, nozzles are arranged at the ends, away from the axis of the liquid injection pipe, of the switching assemblies and communicate with the liquid injection pipe through the switching assemblies, and the switching assemblies are externally connected with pipelines communicating with the liquid injection pipe; a plurality of nozzles capable of rotating are arranged, and the rotating amplitude is increased along with the increase of the hydraulic pressure in the liquid injection pipe; the overall spraying coverage surface of each spray head can be changed, and the change of the spraying range of the spray heads caused by the hydraulic change in the liquid injection pipe is compensated in this way, so that the cross section of the upper end of the base material can be sprayed by the spray heads as much as possible; and the base material in the fermentation tank is completely mixed with the strain stock solution as much as possible.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer manufacturing, and specifically to a strain adding device for the production of bio-organic fertilizer. Background Art

[0002] In the process of bio-organic fertilizer production, it is necessary to add a variety of functional strains to the base material, and through the stirring process, ensure the uniform distribution of the strains in the base material to improve the fermentation efficiency.

[0003] The traditional method of adding strains mainly uses an atomizing nozzle to spray the strain stock solution. By expanding the spraying area of the strain stock solution, the atomizing nozzle can achieve the distribution of strains on the plane of the upper cross-section of the base material; combined with the base material stirring process, through the vertical displacement of the material, it is possible to avoid the concentrated attachment of the strain stock solution to a certain height layer, so as to achieve the preliminary mixing uniformity of the base material and the strains.

[0004] In the production of bio-organic fertilizer, it is often necessary to add a variety of functional strains, and there are differences in the preset spraying amounts of different strain stock solutions, resulting in different target spraying durations for each strain; among them, the spraying time has a two-way impact on the addition of strains: Too short time: The strain stock solution remains concentrated in the upper layer of the base material, and it is necessary to extend the stirring time to promote the mixing of the upper and lower layers, resulting in a reduction in production efficiency; Too long time: The base material at a specific height layer reaches the upper end again due to the stirring cycle and may be sprayed again, which not only destroys the uniformity of the strain distribution but also increases the unnecessary spraying time; Reference Figure 11 , due to the fixed spraying channel of the traditional atomizing nozzle, its spraying speed is positively correlated with the spraying pressure, so that the spraying speed is positively correlated with the spraying area. Furthermore, if the spraying speed is adjusted to control the spraying duration of a fixed volume of solution, it will directly cause a change in the atomizing coverage area, ultimately resulting in a decrease in the mixing uniformity of the base material and the strain stock solution. Summary of the Invention

[0005] The purpose of the present invention is to provide a strain adding device for the production of bio-organic fertilizer to solve the technical problems proposed in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A strain adding device for the production of bio-organic fertilizer, including a fermentation tank; it also includes a plurality of liquid injection pipes, and the plurality of liquid injection pipes are embedded in the upper end of the fermentation tank, and the lower ends of the liquid injection pipes are inserted into the interior of the fermentation tank; A piston I is vertically slidably connected in the liquid injection pipe, and the piston I is provided with an exhaust mechanism for discharging gas and a driving mechanism for driving the piston I; A second piston is vertically and elastically slidably connected to the inner wall of the liquid injection pipe at the lower end. A sliding rod is vertically and fixedly connected to the lower end of the second piston. The sliding rod penetrates through the lower end of the liquid injection pipe. Telescopic rods are hinged to both the left and right sides of the lower end of the sliding rod. A bracket for supporting the rotation of the telescopic rods is arranged at the lower end of the liquid injection pipe, and the bracket is supported at the middle position of the telescopic rods. The two telescopic rods are jointly hinged to a first ring at the end far from the sliding rod. A second ring is arranged below the first ring; The first ring is provided with a locking mechanism, which is in transmission connection with the second ring and can make the upper end of the second ring tightly adhere to the lower end of the first ring and lock; A plurality of transfer components are elastically and rotatably arranged in a circumferential array at the lower end of the liquid injection pipe. A transmission component is arranged at one end of the transfer component close to the axis of the liquid injection pipe. The transmission components are all fixedly connected to the lower end of the second ring; A spray head is arranged at one end of the transfer component far from the axis of the liquid injection pipe. The spray head is communicated with the liquid injection pipe through the transfer component. A pipeline communicating with the liquid injection pipe is externally connected to the transfer component.

[0007] Further, the locking mechanism includes a cylinder fixedly connected to the upper end of the first ring. The output shaft of the cylinder penetrates through the first ring and is fixedly connected to the end of the second ring.

[0008] Further, a displacement sensor is externally connected to the second piston, and the displacement sensor is used to control the start or stop of the cylinder.

[0009] Further, a sealing shell is fixedly connected to the lower end of the liquid injection pipe. The transfer component is rotatably connected to the side wall of the sealing shell and is sealed with the side wall of the sealing shell; One end of the transfer component with the spray head is located outside the sealing shell, and the other end is located inside the sealing shell; The first ring, the second ring and the lower end of the liquid injection pipe are all located inside the sealing shell.

[0010] Further, the transfer component includes a shell. The shell penetrates through the side wall of the sealing shell along the radial direction of the sealing shell and is rotatably connected to the side wall of the sealing shell. Sector-shaped blocks are fixedly connected to both the upper and lower side walls of the shell. The sector-shaped blocks are used to block the connection gap between the shell and the side wall of the sealing shell where they are rotatably connected; A communicating pipe is fixedly connected inside the shell; One end of the communicating pipe is fixedly communicated with the spray head, and the other end is fixedly communicated with the pipeline. The spray head is embedded at one end of the shell outside the sealing shell.

[0011] Further, a joint is fixedly communicated with the end of the communicating pipe. The inner hole of the joint consists of a first channel, a second channel and a transition section located between the first channel and the second channel. The inner diameter of the second channel is larger than that of the first channel; A sealing ball is elastically arranged in the second channel. The diameter of the sealing ball is smaller than the inner diameter of the second channel. The sealing ball can block the transition section under the action of elastic force; One end of the joint located in the second channel is fixedly communicated with the spray head.

[0012] Further, protective blocks are fixedly connected to the lower ends of the liquid injection pipes corresponding to the positions of the shells. The protective blocks can be clamped with the ends of the shells to hermetically protect the spray heads at the ends of the shells.

[0013] Further, the transmission assembly includes a guide rail fixedly connected to the lower end of the second ring. The guide rail is elastically slidably connected with a connecting rod along the radial direction of the second ring. The end of the connecting rod is rotatably connected to one end of the shell located inside the sealing shell.

[0014] Further, the driving mechanism includes a screw rod fixedly connected to the upper end of the first piston. The upper end of the screw rod penetrates through the upper end of the liquid injection pipe and is threadedly connected to the liquid injection pipe. A motor is arranged at the upper end of the liquid injection pipe. The driving shaft of the motor is fixedly connected to the upper end of the screw rod. A liquid injection hole is vertically formed through the screw rod. The liquid injection hole penetrates downward through the first piston. A liquid injection device is arranged on the side wall of the screw rod outside the liquid injection pipe. The liquid injection device is communicated with the liquid injection hole. The liquid injection device is used for adding the original strain solution into the liquid injection hole. The exhaust mechanism is arranged at the liquid injection hole inside the first piston. The exhaust mechanism can block the liquid injection hole and can discharge the air in the space below the first piston in the liquid injection pipe.

[0015] Further, the exhaust mechanism includes a plugging cone. The upper half of the plugging cone is a cylinder, and the lower half is a cone. The density of the plugging cone is less than that of the original strain solution. A fixing rod coaxial with the screw rod is vertically fixedly connected in the liquid injection hole. The plugging cone is vertically slidably connected with the fixing rod. A chamfer is formed at the lower end of the first piston at the position of the liquid injection hole. The conical side wall of the lower half of the plugging cone can be hermetically attached to the chamfer.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the traditional atomizing nozzle with a fixed spray channel, the present invention has multiple rotatable nozzles, and the rotation amplitude increases with the increase of the hydraulic pressure in the liquid injection pipe. The overall spraying coverage area of each nozzle can be changed, and in this way, the change in the spraying range of the nozzle caused by the change in the hydraulic pressure in the liquid injection pipe is compensated, so as to ensure that the upper cross-section of the base material can be sprayed by the nozzle as much as possible. In this way, the base material in the fermentation tank can be mixed with the original strain solution as much as possible.

[0017] The present invention is provided with a joint with a sealing ball, so that the nozzle will spray the original solution only when the hydraulic pressure in the liquid injection pipe reaches the threshold. Further, after the nozzle rotates downward by a certain angle, the nozzle will spray the original solution. In this way, it is possible to prevent the nozzle from leaking the original solution during the start or end of the work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention arranged on the ground; Figure 2 is a semi-sectional schematic diagram of the overall structure of the present invention; Figure 3 is Figure 2 The enlarged schematic diagram of the structure at position A in Figure 4 is Figure 3 The enlarged schematic diagram of the structure at position B in Figure 5 is Figure 3 The enlarged schematic diagram of the structure at position C in Figure 6 is Figure 3 The enlarged schematic diagram of the structure at position D in Figure 7 is Figure 6 The enlarged schematic diagram of the structure at position E in Figure 8 is the front view schematic diagram of the liquid injection pipe and its upper components; Figure 9 is Figure 8 The bottom view schematic diagram of Figure 10 is Figure 9 The schematic diagram of the structure after removing the sealing shell; Figure 11 is the schematic diagram of the change of the spraying trajectory corresponding to the increase in the spraying speed of the traditional nozzle; Figure 12 is the schematic diagram of the principle of maintaining the spraying area of the nozzle of the present invention.

[0019] In the attached drawings, the components represented by each reference numeral are as follows: 1 - fermentation tank, 2 - liquid injection pipe, 3 - piston one, 4 - piston two, 5 - sliding rod, 6 - telescopic rod, 7 - bracket, 8 - ring one, 9 - ring two, 10 - nozzle, 11 - cylinder, 12 - sealing shell, 13 - housing, 14 - sector block, 15 - connecting pipe, 16 - joint, 17 - channel one, 18 - channel two, 19 - transition section, 20 - sealing ball, 21 - protection block, 22 - guide rail, 23 - connecting rod, 24 - screw rod, 25 - motor, 26 - liquid injection hole, 27 - liquid injection device, 28 - plugging cone, 29 - fixing rod, 30 - chamfer. Detailed implementation manners

[0020] Please refer to Figures 1-10 , the present invention provides a technical solution: a strain adding device for the production of bio - organic fertilizer, including a fermentation tank 1; and further including a plurality of liquid injection pipes 2, the plurality of liquid injection pipes 2 are embedded at the upper end of the fermentation tank 1 and the lower ends of the liquid injection pipes 2 are inserted into the fermentation tank 1; A piston one 3 is vertically slidably connected in the liquid injection pipe 2, and the piston one 3 is provided with an exhaust mechanism for discharging gas and a driving mechanism for driving the piston one 3; A second piston 4 is vertically and elastically slidably connected to the lower end of the inner wall of the liquid injection pipe 2. A sliding rod 5 is vertically and fixedly connected to the lower end of the second piston 4. The sliding rod 5 penetrates through the lower end of the liquid injection pipe 2. Both the left and right sides of the lower end of the sliding rod 5 are hinged with telescopic rods 6. A bracket 7 for supporting the rotation of the telescopic rods 6 is arranged at the lower end of the liquid injection pipe 2, and the bracket 7 is supported at the middle position of the telescopic rods 6. The two telescopic rods 6 are jointly hinged with a first ring 8 at the end far away from the sliding rod 5. A second ring 9 is arranged below the first ring 8; The first ring 8 is provided with a locking mechanism, and the locking mechanism is in transmission connection with the second ring 9 and can make the upper end of the second ring 9 tightly adhere to and lock with the lower end of the first ring 8; A plurality of transfer components are elastically and rotationally arranged in a circumferential array at the lower end of the liquid injection pipe 2. A transmission component is arranged at one end of the transfer component close to the axis of the liquid injection pipe 2, and the transmission components are all fixedly connected to the lower end of the second ring 9; at the end of the transfer component far away from the axis of the liquid injection pipe 2, a spray head 10 is arranged. The spray head 10 is communicated with the liquid injection pipe 2 through the transfer component, and the transfer component is externally connected with a pipe communicating with the liquid injection pipe 2.

[0021] Various strains are respectively added to each liquid injection pipe 2. When a specific strain needs to be added to the fermentation tank 1, the liquid injection pipe 2 containing the strain sprays the strain stock solution into the fermentation tank 1 through the spray head 10; In this process, first, the driving mechanism drives the first piston 3 to move downward at a constant speed. The pressure of the strain stock solution in the liquid injection pipe 2 increases under the extrusion of the first piston 3, causing the second piston 4 to move downward against the elastic force (the moving distance is L). Furthermore, the second piston 4 drives the sliding rod 5 to move downward, causing the end of the telescopic rod 6 hinged with the sliding rod 5 to move downward. Further, the telescopic rod 6 rotates around the bracket 7 and drives the first ring 8 to move vertically upward. At the same time, the locking mechanism controls the upper end of the second ring 9 to tightly adhere to and lock with the lower end of the first ring 8, so that the second ring 9 moves upward with the first ring 8. The second ring 9 drives one end of the transfer component close to the axis of the liquid injection pipe 2 to move upward through the transmission component, causing the transmission component to rotate. At the same time, the end of the transmission component connected to the spray head 10 rotates downward; further, in this process, as the hydraulic pressure in the liquid injection pipe 2 increases, the strain stock solution is sprayed out by the spray head 10. And in this process, since the number of the spray heads 10 is fixed, the faster the first piston 3 moves downward (the larger the spraying amount of the corresponding spray head 10), the greater the hydraulic pressure in the liquid injection pipe 2, so that the downward displacement of the second piston 4 is greater. Further, in summary, it can be known that the greater the downward rotation amplitude of the transmission component driving the spray head 10; When the spraying of the bacterial stock solution is completed, the piston 13 stops moving downward. Correspondingly, the stock solution in the injection tube 2 is squeezed by the piston 24 under the elastic force, and the piston 24 gradually moves upward under the elastic force, so that the stock solution is sprayed from the nozzle 10 to the outside of the injection tube 2. At the same time, the hydraulic pressure in the injection tube 2 gradually decreases, so that the nozzle 10 rotates upward to reset, until the hydraulic pressure in the injection tube 2 is reduced to the point where the nozzle 10 cannot spray out. At this time, the locking mechanism cancels the restriction on the ring 2 9, so that the ring 2 9 is reset under the elasticity of the adapter assembly, and the adapter assembly is reset under its own elastic force. In the above work process, if Figure 11 During the process of the nozzle 10 spraying the stock liquid, the initial angle of the stock liquid leaving the nozzle 10 is fixed, and its spraying range increases with the increase of the hydraulic pressure in the injection pipe 2 (the hydraulic pressure increases, the spraying speed of the nozzle 10 increases, Figure 11 In the case of spraying speed v3>v2>v1), when the sprayed liquid falls on a fixed plane, Figure 11 : If the initial velocity of the liquid leaving the nozzle 10 is too slow, the spraying range is small, resulting in incomplete spraying on the fixed plane; if the initial velocity of the liquid leaving the nozzle 10 is too fast, the spraying range is large, resulting in a large amount of liquid spraying onto the side wall of the fermentation tank 1, increasing the difficulty of mixing; like Figure 12 When the hydraulic pressure in the injection pipe 2 gradually increases (the corresponding nozzle 10 sprays the original liquid at a faster initial speed), the downward rotation amplitude of each nozzle 10 corresponding to the injection pipe 2 of the present invention increases accordingly, so that the spraying coverage surface of each nozzle 10 approaches the center of the fermentation tank 1 (the smaller the downward rotation amplitude of the nozzle 10, the smaller the angle between the nozzle 10 and the vertical line, Figure 12 In the embodiment, the angle between the nozzle 10 and the vertical line is θ3>θ2>θ1), thereby preventing the stock solution from being sprayed onto the side wall of the fermentation tank 1 in large quantities; correspondingly, when the hydraulic pressure in the injection pipe 2 decreases and the spraying range of a single nozzle 10 decreases, each nozzle 10 reduces the downward rotation amplitude so that the spraying coverage surface of each nozzle 10 approaches the side wall of the fermentation tank 1, so that the stock solution can be sprayed onto the fixed plane; The mixture between the original liquid and the base material is not completely uniform, but the base material is covered with bacteria, while preventing excessive enrichment of bacteria in local areas; during the fermentation process, all base materials can be fermented, reducing the time for the bacteria to multiply and spread to the base material without bacteria, thereby increasing the fermentation speed.

[0022] Compared with the traditional atomizing nozzle with a fixed injection channel, the present invention uses multiple rotatable nozzles 10, and the rotation amplitude increases with the increase of the hydraulic pressure in the injection pipe 2; so that the overall spray coverage of each nozzle 10 can be changed, and in this way, the change in the spray range of the nozzle 10 caused by the hydraulic pressure change in the injection pipe 2 is compensated, ensuring as much as possible that the upper cross-section of the base material can be sprayed by the nozzle 10; in this way, the base material in the fermentation tank 1 is mixed with the bacterial stock solution as much as possible.

[0023] Furthermore, the locking mechanism includes a cylinder 11 fixedly connected to the upper end of ring 1 8 , and the output shaft of the cylinder 11 passes through ring 1 8 and is fixedly connected to the end of ring 2 9 .

[0024] When the hydraulic pressure in the injection pipe 2 rises to the point where the original liquid can be sprayed out from the nozzle 10, the cylinder 11 starts, so that the output shaft of the cylinder 11 drives the ring 2 9 to move toward the ring 1 8, so that the upper end of the ring 2 9 is close to the lower end of the ring 1 8 and maintained; when the hydraulic pressure in the injection pipe 2 drops to the point where the original liquid can no longer be sprayed out from the nozzle 10, the cylinder 11 stops running, so that the output shaft can freely move vertically, and thus the ring 2 9 can freely move vertically.

[0025] Furthermore, the piston 2 4 is externally connected to a displacement sensor, and the displacement sensor is used to control the start or stop of the cylinder 11.

[0026] When the hydraulic pressure in the injection pipe 2 rises to a level where the original liquid can be sprayed out from the nozzle 10, the piston 2 4 moves vertically downward to below a fixed height. Similarly, when the hydraulic pressure in the injection pipe 2 drops to a level where the original liquid cannot be sprayed out from the nozzle 10, the piston 2 4 moves vertically downward to above the fixed height. Therefore, a displacement sensor is provided. By monitoring the vertical height of the piston 2 4 through the displacement sensor, the hydraulic state in the injection pipe 2 can be determined.

[0027] Furthermore, the lower end of the injection tube 2 is fixedly connected to a sealing shell 12, and the adapter assembly is rotatably connected to the side wall of the sealing shell 12 and sealed with the side wall of the sealing shell 12; one end of the adapter assembly with the nozzle 10 is located outside the sealing shell 12, and the other end is located inside the sealing shell 12; the ring 1 8, ring 2 9 and the lower end of the injection tube 2 are all located inside the sealing shell 12.

[0028] By providing the sealing shell 12, the ring 1 8, the ring 2 9 and the upper components thereof and the related components provided at the lower end of the injection tube 2 are placed in the sealing shell 12 for protection to avoid being affected by the humid environment.

[0029] Furthermore, the adapter assembly includes a shell 13, which radially penetrates the side wall of the sealing shell 12 and is rotatably connected to the side wall of the sealing shell 12. The upper and lower side walls of the shell 13 are fixedly connected with fan blocks 14, and the fan blocks 14 are used to block the connection gap between the shell 13 and the side wall of the sealing shell 12 that are rotatably connected; a connecting pipe 15 is fixedly connected inside the shell 13; one end of the connecting pipe 15 is fixedly connected to the nozzle 10, and the other end is fixedly connected to the pipeline, and the nozzle 10 is embedded in one end of the shell 13 outside the sealing shell 12.

[0030] Further, the end of the connecting pipe 15 is fixedly connected with a connector 16. The inner hole of the connector 16 is composed of a first channel 17, a second channel 18, and a transition section 19 located between the first channel 17 and the second channel 18. The inner diameter of the second channel 18 is larger than that of the first channel 17. An elastic sealing ball 20 is arranged in the second channel 18. The diameter of the sealing ball 20 is smaller than the inner diameter of the second channel 18. The sealing ball 20 can block the transition section 19 under the action of elastic force. One end of the connector 16 located in the second channel 18 is fixedly connected with the spray head 10.

[0031] When the pressure in the liquid injection pipe 2 increases, the stock solution in the liquid injection pipe 2 has a tendency to push the sealing ball 20 from the transition section 19 into the second channel 18 under the action of the pressure. When the pressure in the liquid injection pipe 2 increases to a certain extent, the sealing ball 20 overcomes the elastic force and enters the second channel 18, so that the transition section 19 is no longer blocked by the sealing ball 20. Further, the stock solution in the liquid injection pipe 2 is sprayed out by the spray head 10 through the connector 16. In the present invention, by providing the connector 16 with the sealing ball 20, the spray head 10 will spray the stock solution only after the hydraulic pressure in the liquid injection pipe reaches the threshold value. Further, after the spray head 10 rotates downward by a certain angle, the spray head 10 will spray the stock solution. In this way, it is possible to prevent the spray head 10 from leaking the stock solution during the start or end of the work.

[0032] Further, protection blocks 21 are fixedly connected to the lower ends of the liquid injection pipes 2 corresponding to the positions of the shells 13. The protection blocks 21 can be engaged with the ends of the shells 13 and seal and protect the spray heads 10 at the ends of the shells 13.

[0033] In the initial state, the shell 13 presses against the protection block 21 under the action of elastic force, so that the spray head 10 at the end of the shell 13 is located inside the protection block 21, and further, the protection block 21 seals and protects the spray head 10. It is possible to prevent the spray head 10 from being contaminated by external bacteria during non-working hours. Further, the purity of the stock solution of the bacteria when the spray head 10 sprays the stock solution of the bacteria is increased, and the fermentation quality is improved.

[0034] Further, the transmission assembly includes a guide rail 22 fixedly connected to the lower end of the second ring 9. The guide rail 22 is elastically slidably connected with a connecting rod 23 along the radial direction of the second ring 9. The end of the connecting rod 23 is rotatably connected to one end of the shell 13 located inside the sealing shell 12.

[0035] During the vertical displacement of the second ring 9, the connecting rod 23 thereon will be driven to perform vertical displacement, and then the connecting rod 23 drives one end of the shell 13 located inside the sealing shell 12 to perform vertical displacement, causing the shell 13 to rotate.

[0036] Further, the driving mechanism includes a screw rod 24 fixedly connected to the upper end of the first piston 3. The upper end of the screw rod 24 penetrates through the upper end of the liquid injection pipe 2 and is threadedly connected to the liquid injection pipe 2. A motor 25 is arranged at the upper end of the liquid injection pipe 2. The driving shaft of the motor 25 is fixedly connected to the upper end of the screw rod 24. A liquid injection hole 26 is vertically formed through the screw rod 24. The liquid injection hole 26 penetrates downward through the first piston 3. A liquid injection device 27 is arranged on the side wall of the screw rod 24 outside the liquid injection pipe 2. The liquid injection device 27 is communicated with the liquid injection hole 26. The liquid injection device 27 is used for adding the stock solution of the strain into the liquid injection hole 26. The exhaust mechanism is arranged at the liquid injection hole 26 in the first piston 3. The exhaust mechanism can block the liquid injection hole 26 and can discharge the air in the space below the first piston 3 in the liquid injection pipe 2.

[0037] The stock solution of the strain is added into the liquid injection hole 26 through the liquid injection device 27, so that the stock solution of the strain enters the liquid injection pipe 2 through the liquid injection hole 26.

[0038] Further, the exhaust mechanism includes a plugging cone 28. The upper half of the plugging cone 28 is a cylinder, and the lower half is a cone. The density of the plugging cone 28 is less than that of the stock solution of the strain. A fixing rod 29 coaxial with the screw rod is vertically and fixedly connected in the liquid injection hole 26. The plugging cone 28 is vertically slidably connected to the fixing rod 29. A chamfer 30 is formed at the lower end of the first piston 3 at the position of the liquid injection hole 26. The conical side wall of the lower half of the plugging cone 28 can be hermetically attached to the chamfer 30.

[0039] As the stock solution of the strain in the liquid injection pipe 2 increases, the liquid level of the stock solution of the strain moves upward into the liquid injection hole 26 in the screw rod 24. Correspondingly, under the action of buoyancy, the plugging cone 28 moves upward with the liquid level of the stock solution of the strain until the conical side wall of the lower half of the plugging cone 28 is attached to the chamfer 30 in the first piston 3. In this way, there is no air in the lower half of the first piston 3 in the liquid injection pipe 2. In this way, when the liquid injection pipe 2 sprays the stock solution of the strain into the fermentation tank 1, the spraying amount is controllable, preventing the spraying amount from decreasing due to the existence of air. In the above working process, since the density of the plugging cone 28 is approximately the same as that of the stock solution of the strain, the upper end of the plugging cone 28 is approximately flush with the liquid level. Further, the lower half of the cone of the plugging cone 28 is submerged below the liquid level. In this way, it is ensured that when the conical side wall of the lower half of the plugging cone 28 is attached to the chamfer 30, the liquid level of the stock solution of the strain is located in the liquid injection hole 26 in the screw rod 24. At the same time, during the subsequent spraying process of the stock solution of the strain, when the first piston 3 moves downward, the lower end of the first piston 3 and the plugging cone 28 in the chamfer 30 of the first piston 3 squeeze the liquid level downward, and thus the plugging cone 28 receives an upward reaction force, so that the conical side wall of the lower half of the plugging cone 28 and the chamfer 30 are tightly squeezed and attached to each other. When the original strain solution in the liquid injection pipe 2 is consumed, when it is necessary to re-inject the original strain solution into the liquid injection pipe 2, the first piston 3 moves upward. At the same time, the plugging cone 28 moves downward relative to the first piston 3 under the action of gravity, so that the conical side wall of the plugging cone 28 is separated from the chamfer 30, and further the plugging cone 28 cancels the sealing effect on the liquid injection hole 26, so that the original strain solution can be smoothly injected into the liquid injection pipe 2 through the liquid injection hole 26.

Claims

1. A bacterial strain adding device for the production of biological organic fertilizer, comprising a fermentation tank (1), characterized in that: It also comprises a plurality of liquid injection pipes (2), wherein the plurality of liquid injection pipes (2) are embedded in the upper end of the fermentation tank (1), and the lower ends of the liquid injection pipes (2) are inserted into the interior of the fermentation tank (1); A piston one (3) is vertically slidably connected inside the injection pipe (2), and the piston one (3) is provided with an exhaust mechanism for exhausting gas and a driving mechanism for driving the piston one (3); The lower end of the inner wall of the injection tube (2) is vertically elastically slidably connected to a piston 2 (4), and the lower end of the piston 2 (4) is vertically fixedly connected to a slide rod (5), the slide rod (5) passes through the lower end of the injection tube (2), and telescopic rods (6) are hinged on both sides of the lower end of the slide rod (5). A bracket (7) for supporting the telescopic rod (6) to rotate is provided at the lower end of the injection tube (2), and the bracket (7) is supported at the middle position of the telescopic rod (6), and the ends of the two telescopic rods (6) away from the slide rod (5) are hingedly connected to a ring 1 (8), and a ring 2 (9) is provided below the ring 1 (8); The ring one (8) is provided with a locking mechanism, which is in transmission connection with the ring two (9) and can make the upper end of the ring two (9) close to the lower end of the ring one (8) and lock it; The lower end of the injection tube (2) is provided with a plurality of adapter assemblies which are elastically rotatable in a circular array, and the end of the adapter assembly close to the axis of the injection tube (2) is provided with a transmission assembly, and the transmission assemblies are fixedly connected to the lower end of the second ring (9); the end of the adapter assembly away from the axis of the injection tube (2) is provided with a nozzle (10), and the nozzle (10) is connected to the injection tube (2) through the adapter assembly, and the adapter assembly is externally connected to a pipeline connected to the injection tube (2).

2. The bacterial strain adding device for bio-organic fertilizer production according to claim 1, characterized in that: The locking mechanism comprises a cylinder (11) fixedly connected to the upper end of ring one (8), and an output shaft of the cylinder (11) passes through ring one (8) and is fixedly connected to the end of ring two (9).

3. The strain adding device for biological organic fertilizer production according to claim 2, wherein: The second piston (4) is externally connected to a displacement sensor, and the displacement sensor is used to control the start or stop of the cylinder (11).

4. The strain adding device for bio-organic fertilizer production according to claim 2, characterized in that: The lower end of the injection tube (2) is fixedly connected to a sealing shell (12); the adapter assembly is rotatably connected to the side wall of the sealing shell (12) and is sealed with the side wall of the sealing shell (12); one end of the adapter assembly with a nozzle (10) is located outside the sealing shell (12), and the other end is located inside the sealing shell (12); the ring 1 (8), the ring 2 (9) and the lower end of the injection tube (2) are all located inside the sealing shell (12).

5. The strain adding device for biological organic fertilizer production according to claim 4, characterized in that: The adapter assembly comprises a shell (13), the shell (13) radially penetrates the side wall of the sealing shell (12) and is rotatably connected to the side wall of the sealing shell (12), the upper and lower side walls of the shell (13) are fixedly connected to sector blocks (14), the sector blocks (14) are used to block the connection gap between the shell (13) and the side wall of the sealing shell (12) where they are rotatably connected; a connecting pipe (15) is fixedly connected inside the shell (13); one end of the connecting pipe (15) is fixedly connected to the nozzle (10), and the other end is fixedly connected to the pipeline, and the nozzle (10) is embedded in one end of the shell (13) outside the sealing shell (12).

6. The strain adding device for bio-organic fertilizer production according to claim 5, characterized in that: One end of the connecting pipe (15) is fixedly connected with a connector (16). The inner hole of the connector (16) consists of a first channel (17), a second channel (18), and a transition section (19) located between the first channel (17) and the second channel (18). The inner diameter of the second channel (18) is larger than that of the first channel (17). An elastic sealing ball (20) is arranged in the second channel (18). The diameter of the sealing ball (20) is smaller than the inner diameter of the second channel (18). The sealing ball (20) can block the transition section (19) under the action of elastic force. One end of the connector (16) located in the second channel (18) is fixedly connected with a spray head (10).

7. The strain adding device for biological organic fertilizer production according to claim 6, characterized in that: At the lower end of the liquid injection pipe (2), protection blocks (21) are fixedly connected corresponding to the position of the housing (13). The protection blocks (21) can be clamped with the end of the housing (13) and seal and protect the spray head (10) at the end of the housing (13).

8. The strain adding device for bio-organic fertilizer production according to claim 7, characterized in that: The transmission assembly includes a guide rail (22) fixedly connected to the lower end of the second ring (9). The guide rail (22) is elastically slidably connected with a connecting rod (23) along the radial direction of the second ring (9). One end of the connecting rod (23) is rotatably connected with one end of the housing (13) located inside the sealing shell (12).

9. The strain adding device for the production of biological organic fertilizer according to claim 7, characterized in that: The driving mechanism includes a screw rod (24) fixedly connected to the upper end of the first piston (3). The upper end of the screw rod (24) penetrates through the upper end of the liquid injection pipe (2) and is threadedly connected with the liquid injection pipe (2). A motor (25) is arranged at the upper end of the liquid injection pipe (2). The driving shaft of the motor (25) is fixedly connected to the upper end of the screw rod (24). A liquid injection hole (26) is vertically formed in the screw rod (24). The liquid injection hole (26) penetrates downward through the first piston (3). A liquid injection device (27) is arranged on the side wall of the screw rod (24) outside the liquid injection pipe (2). The liquid injection device (27) is communicated with the liquid injection hole (26). The liquid injection device (27) is used for adding the original strain liquid into the liquid injection hole (26). The exhaust mechanism is arranged at the liquid injection hole (26) in the first piston (3). The exhaust mechanism can block the liquid injection hole (26) and can discharge the air in the space below the first piston (3) in the liquid injection pipe (2).

10. The strain adding device for the production of biological organic fertilizer according to claim 9, characterized in that: The exhaust mechanism includes a plugging cone (28). The upper half of the plugging cone (28) is a cylinder, and the lower half is a cone. The density of the plugging cone (28) is smaller than that of the original strain liquid. A fixing rod (29) coaxial with the screw rod is vertically fixedly connected in the liquid injection hole (26). The plugging cone (28) is vertically slidably connected with the fixing rod (29). A chamfer (30) is formed at the lower end of the first piston (3) at the position of the liquid injection hole (26). The conical side wall of the lower half of the plugging cone (28) can be hermetically attached to the chamfer (30).

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