A fermentation tank for producing organic fertilizer

Abstract

The utility model relates to the technical field of organic fertilizer production fermentation, specifically is a kind of fermentation tank of organic fertilizer production, the fermentation tank one side is fixedly connected with servo motor, rotatingly connected with rotating shaft in the fermentation tank, rotating shaft is connected with the reciprocating screw rod transmission, reciprocating screw rod is screw threadedly connected with pull plate, pull plate is connected with the sliding joint of fermentation tank, the inflation cylinder is fixedly connected on the fermentation tank, the piston is fixedly connected on pull plate side, the piston is connected with the inner wall sliding joint of inflation cylinder. The utility model is reversed by setting servo motor, on the one hand, the organic fertilizer material in fermentation tank is stirred evenly by stirring plate, to create passageway for air penetration, on the other hand, the pull plate of screw connection reciprocating sliding along the inner wall of fermentation tank, several gas outlets on the outer surface of multi-way pipe are evenly injected into material inside, continuously provide sufficient oxygen for aerobic microorganism, avoid the problem of slow organic matter decomposition due to hypoxia.

Description

Technical Field

[0001] This utility model relates to the field of organic fertilizer production fermentation technology, specifically a fermentation tank for organic fertilizer production. Background Technology

[0002] Organic fertilizer production fermentation refers to the process of converting organic materials into organic fertilizer through the action of a series of microorganisms. During this process, microorganisms such as bacteria and fungi decompose organic waste, generating nutrients beneficial to plant growth. Fermentation not only eliminates harmful substances from the organic material but also improves the nutrient content and quality of the fertilizer, making it more suitable for the needs of soil and plants. A Chinese utility model patent with authorization announcement number CN220618787U discloses a high-efficiency organic fertilizer fermentation tank, including a fermentation tank body, a convenient loading and unloading support mechanism comprising first slots on both sides of the inner wall of the fermentation tank body, a support inner liner inserted into the inner wall of the fermentation tank body, second slots on both sides of the top of the support inner liner, a scraper sliding between the inner walls of the two second slots, first electric telescopic rods engaged at both ends on one side of the fermentation tank body, and a discharge chute on one side of the support inner liner.

[0003] Using the above technical solution, activating the first electric telescopic rod causes the inner liner to slide out into the first slot at the top of the fermentation tank. Then, the sealing plate is opened via the second handle, opening the discharge chute. The scraper, moved by the first handle in the second slot, scrapes the organic fertilizer in the inner liner, discharging it from the discharge chute for easy loading and unloading. However, this technical solution still has some problems in actual use. Since organic fertilizer fermentation relies on the metabolic activities of aerobic microorganisms, sufficient air needs to be introduced into the bottom of the material to meet the respiration requirements of these microorganisms. However, the above solution does not facilitate the injection of air into the material, leading to reduced activity of aerobic microorganisms due to oxygen deficiency, slow decomposition of organic matter, and uneven air distribution causing temperature imbalance in the entire organic fertilizer, thus greatly affecting the fermentation quality. Therefore, it is necessary to develop a fermentation tank that can uniformly inject air into the material, improving the fermentation efficiency and quality of organic fertilizer. Utility Model Content

[0004] To address the above technical problems, this utility model provides a fermentation tank that can uniformly inject air into the material and improve the fermentation quality of organic fertilizer, thereby solving the problem that existing fermentation tanks cannot uniformly inject air into the bottom of the material, affecting fermentation efficiency and quality.

[0005] To solve the above-mentioned technical problems, the present invention provides a fermentation tank for organic fertilizer production, comprising a fermentation tank, a servo motor fixedly connected to one side of the fermentation tank, a rotating shaft rotatably connected inside the fermentation tank, one end of the rotating shaft being fixedly connected to the output end of the servo motor, a stirring plate fixedly connected to the rotating shaft, a reciprocating screw rotatably connected to one side of the fermentation tank, the rotating shaft being drivenly connected to the reciprocating screw, a pull plate being threadedly connected to the reciprocating screw, the pull plate being slidably engaged with the fermentation tank, an air cylinder fixedly connected to the fermentation tank, a piston fixedly connected to one side of the pull plate, the piston being slidably connected to the inner wall of the air cylinder, an air filling pipe and an air extraction pipe fixedly connected to the outer surface of the air cylinder, a one-way valve fixedly connected to the air filling pipe and the air extraction pipe respectively, a multi-port pipe fixedly connected to the bottom end of the air filling pipe, the multi-port pipe extending to the bottom wall of the fermentation tank, and a plurality of air outlets fixedly connected to the outer surface of the multi-port pipe.

[0006] Furthermore, gears are fixedly connected to both the rotating shaft and the reciprocating lead screw, and the two gears are connected by a synchronous toothed belt.

[0007] Furthermore, a sealing door is hinged to one side of the fermentation tank, and a handle is fixedly connected to the sealing door. Two locking blocks are fixedly connected to the sealing door, and two latches are fixedly connected to one side of the fermentation tank. The latches and the locking blocks cooperate to lock each other.

[0008] Furthermore, the bottom surface of the fermentation tank is fixedly connected to four support legs, and the bottom surface of each support leg is fixedly connected to a base.

[0009] Furthermore, a support base is fixedly connected to the outside of the fermentation tank, and the servo motor is fixedly connected to the support base.

[0010] Furthermore, two support blocks are fixedly connected at intervals to the outside of the fermentation tank, and the two ends of the reciprocating screw are rotatably connected to the support blocks.

[0011] Furthermore, the rotating shaft is rotatably connected to the fermentation tank via a sealed bearing.

[0012] This utility model has the following advantages compared with the prior art:

[0013] This invention utilizes a servo motor for forward and reverse rotation. When the servo motor drives the rotating shaft, it simultaneously stirs the organic fertilizer material in the fermentation tank through a stirring plate, breaking up material clumps and creating channels for air penetration. Simultaneously, the rotating shaft drives the left-side gear to rotate, which in turn drives another gear via a synchronous toothed belt, causing a reciprocating screw to rotate. This causes a threaded pull plate to slide back and forth along the inner wall of the fermentation tank. The piston on the right side of the pull plate moves with the pull plate, completing the intake and exhaust actions within the air cylinder. During intake, fresh air is drawn in from the outside through a one-way valve in the suction pipe; during exhaust, compressed air is delivered to a multi-port pipe through a one-way valve in the inflation pipe. Finally, the compressed air is evenly injected into the material through several air outlets on the outer surface of the multi-port pipe, continuously providing sufficient oxygen to aerobic microorganisms, significantly improving their metabolic activity, and avoiding the problem of slow decomposition of organic matter due to oxygen deficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the fermentation tank of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the air cylinder of this utility model.

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the fermentation tank of this utility model, viewed from the right side.

[0017] Figure 4 This is a three-dimensional structural diagram of the air outlet head of this utility model.

[0018] In the diagram: 1. Fermentation tank; 2. Servo motor; 3. Rotating shaft; 4. Stirring plate; 5. Air inlet; 6. Support leg; 7. Base; 8. Support seat; 9. Gear; 10. Synchronous toothed belt; 11. Reciprocating screw; 12. Pull plate; 13. Support block; 14. Air inlet pipe; 15. Multi-port pipe; 16. Piston; 17. Air extraction pipe; 18. One-way valve; 19. Sealing door; 20. Handle; 21. Locking block; 22. Lock; 23. Sealed bearing; 24. Air outlet. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1-4The fermentation tank shown includes a fermentation tank 1. Four support legs 6 are fixedly connected to the four corners of the bottom surface of the fermentation tank 1. To ensure stable placement of the equipment, a base 7 is fixedly connected to the bottom surface of each support leg 6. A support seat 8 is fixedly connected to the left side of the fermentation tank 1. A servo motor 2 is fixedly connected to the support seat 8 by bolts. The support seat 8 provides a precise and stable mounting carrier for the servo motor 2. The rigid connection between the support seat 8 and the fermentation tank 1 effectively counteracts the vibration generated during the operation of the servo motor 2, preventing the motor from shifting position due to vibration. A rotating shaft 3 is rotatably connected along the length of the fermentation tank 1 via a sealed bearing 23. The left end of the rotating shaft 3 is fixedly connected to the output end of the servo motor 2. Five sets of stirring plates 4 are fixedly connected at intervals on the rotating shaft 3. Two spaced support blocks 13 are fixedly connected to the front side of the fermentation tank 1. A reciprocating screw 11 is rotatably connected between the two support blocks 13. Bearings are sleeved at both ends of the reciprocating screw 11, which is rotatably connected to the support blocks 13 via the bearings. The left and right sides of the rotating shaft 3 and the reciprocating screw 11 are connected. Gears 9 are fixedly connected to both ends, and the two gears 9 are connected by a synchronous toothed belt 10. A pull plate 12 is threaded onto the reciprocating screw 11. A slot is opened on the fermentation tank 1, which is parallel to the reciprocating screw 11. A locking block is fixedly connected to the pull plate 12, and the locking block slides into the slot. An air cylinder 5 is fixedly connected to the right side of the reciprocating screw 11 on the fermentation tank 1. A piston 16 is fixedly connected to the right side of the pull plate 12. The piston head of the piston 16 is slidably connected to the inner wall of the air cylinder 5. The outer surface of the air cylinder 5 is respectively fixed The fermentation tank 1 is connected to an air filling pipe 14 and an air extraction pipe 17. A one-way valve 18 for venting air from the air filling cylinder 5 is fixedly connected to the air filling pipe 14. A one-way valve 18 for venting air into the air filling cylinder 5 is fixedly connected to the air extraction pipe 17. A multi-port pipe 15 is fixedly connected to the bottom end of the air filling pipe 14. The multi-port pipe 15 extends to the bottom wall of the fermentation tank 1. Several air outlets 24 are fixedly connected to the upper surface of the multi-port pipe 15. The air outlets of the air outlets 24 face downwards to avoid direct coverage by the raw materials, so as not to affect air permeation and to prevent raw material particles from falling into the orifices.

[0021] To facilitate the discharge of fermented material, a sealing door 19 is hinged to the right side of the fermentation tank 1. A handle 20 is fixedly connected to the sealing door 19, and two locking blocks 21 are fixedly connected to the lower edge of the sealing door 19. Two latches 22 are fixedly connected to the fermentation tank 1 and the sealing door 19 at corresponding positions. The latches 22 and the locking blocks 21 cooperate with each other to fix the sealing door 19. A heating belt can be installed in the interlayer of the side wall of the fermentation tank 1 to control the fermentation temperature.

[0022] It should be noted that in this embodiment, the locking block 21 and the latch 22 adopt a spring-loaded latch lock structure, which is an existing device, and its specific structure will not be described in detail here. Furthermore, this utility model requires a contactor, PLC controller, or microcontroller to control the forward and reverse rotation of the servo motor 2. Motor forward and reverse rotation refers to the technology of changing the phase sequence of the three-phase motor power supply to achieve clockwise (forward) and counterclockwise (reverse) operation. The basic method is to swap any two phases of the power supply wiring. Early methods used knife switches or reversing switches, later evolving to contactor control circuits with added interlocking and double interlocking protection mechanisms. With the advancement of electronic technology, PLCs and microcontrollers are combined with proximity switches and photoelectric switches to achieve bidirectional automatic control, laying the foundation for industrial robot applications. The control circuit uses a double interlock between buttons and contactors to prevent power short circuits and supports direct switching of the operating direction. The forward and reverse rotation control of the servo motor 2 is a conventional technique in the electromechanical field, and its circuit principles will not be explained further here.

[0023] The working principle of this embodiment is as follows:

[0024] When fermenting organic fertilizer, the operator first connects the servo motor 2 to an external power supply and controller. The controller then controls the servo motor 2 to automatically rotate forward and backward. Next, the material to be fermented is added to the fermentation tank 1. During fermentation, the material generates its own heat. If the external temperature is low, the fermentation tank 1's own heating function can be used to assist fermentation. During fermentation, the servo motor 2 is turned on. After starting, its power output drives the rotating shaft 3 to automatically rotate forward and backward. The five sets of stirring plates 4 fixedly connected to the rotating shaft 3 rotate accordingly, thoroughly and evenly stirring the organic fertilizer material in the fermentation tank 1. This stirring breaks up material clumps, allowing air to penetrate the material more smoothly. Simultaneously, the gear 9 fixedly connected to the left end of the rotating shaft 3 begins to rotate. This gear 9 drives another gear 9 to rotate via a synchronous toothed belt 10, thereby causing the gear 9 to rotate. When the reciprocating screw 11 starts to rotate, the pull plate 12 connected to its outer surface will slide back and forth along the inner wall of the fermentation tank 1 under the limiting action of the inner wall of the fermentation tank 1. The piston 16 fixedly connected to the right side of the pull plate 12 moves together with the pull plate 12. When the pull plate 12 drives the piston 16 to slide outward in the air cylinder 5, air is drawn in. During the air drawing, fresh air is drawn in from the outside through the one-way valve 18 of the air extraction pipe 17. During the return and exhaust, compressed air is delivered to the multi-port pipe 15 through the one-way valve 18 of the air filling pipe 14. Then, several air outlets 24 on the outer surface of the multi-port pipe 15 are evenly injected into the material, continuously providing sufficient oxygen for the metabolic activities of aerobic microorganisms, ensuring the smooth progress of the organic fertilizer fermentation process. The cooperation of the two one-way valves 18 can ensure the correct airflow and improve the fermentation quality. After the fermentation is completed, the staff can open the sealing door 19 through the handle 20 to take out the decomposed organic fertilizer.

Claims

1. A fermentation tank for organic fertilizer production, comprising a fermentation tank (1), characterized in that: A servo motor (2) is fixedly connected to one side of the fermentation tank (1). A rotating shaft (3) is rotatably connected inside the fermentation tank (1). One end of the rotating shaft (3) is fixedly connected to the output end of the servo motor (2). A stirring plate (4) is fixedly connected to the rotating shaft (3). A reciprocating screw (11) is rotatably connected to one side of the fermentation tank (1). The rotating shaft (3) is driven by the reciprocating screw (11). A pull plate (12) is threaded onto the reciprocating screw (11). The pull plate (12) is slidably engaged with the fermentation tank (1). A fixed connection is made to the fermentation tank (1). There is an air cylinder (5), and a piston (16) is fixedly connected to one side of the pull plate (12). The piston (16) is slidably connected to the inner wall of the air cylinder (5). An air filling pipe (14) and an air extraction pipe (17) are fixedly connected to the outer surface of the air cylinder (5). A one-way valve (18) is fixedly connected to the air filling pipe (14) and the air extraction pipe (17). A multi-port pipe (15) is fixedly connected to the bottom end of the air filling pipe (14). The multi-port pipe (15) extends to the bottom wall of the fermentation tank (1). Several air outlets (24) are fixedly connected to the outer surface of the multi-port pipe (15).

2. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: Both the rotating shaft (3) and the reciprocating lead screw (11) are fixedly connected with gears (9), and the two gears (9) are connected by a synchronous toothed belt (10).

3. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: A sealing door (19) is hinged to one side of the fermentation tank (1). A handle (20) is fixedly connected to the sealing door (19). Two locking blocks (21) are fixedly connected to the sealing door (19). Two latches (22) are fixedly connected to one side of the fermentation tank (1). The latches (22) and the locking blocks (21) cooperate with each other to lock.

4. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: The bottom surface of the fermentation tank (1) is fixedly connected to four support legs (6), and the bottom surface of each support leg (6) is fixedly connected to a base (7).

5. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: A support base (8) is fixedly connected to the outside of the fermentation tank (1), and the servo motor (2) is fixedly connected to the support base (8).

6. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: Two support blocks (13) are fixedly connected at intervals on the outside of the fermentation tank (1), and the two ends of the reciprocating screw (11) are rotatably connected to the support blocks (13).

7. The fermentation tank for organic fertilizer production according to claim 1, characterized in that: The rotating shaft (3) is rotatably connected to the fermentation tank (1) via a sealed bearing (23).

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