Compost fermentation device for producing microbial fertilizer

Abstract

The invention provides a compost fermentation device for microbial fertilizer production, and belongs to the technical field of microbial fertilizer production, the compost fermentation device comprises a fermentation tank, the side wall of the fermentation tank is provided with a box door, the top of the fermentation tank is provided with a control box through bolts, the fermentation tank is internally provided with a turning and throwing assembly, and the turning and throwing assembly is used for turning and throwing compost; an adjusting assembly is arranged in the fermentation tank and used for adjusting and controlling the temperature and humidity in the fermentation tank, a ventilation assembly is arranged in the fermentation tank and used for conducting ventilation and aeration on compost, and multiple sets of auxiliary equipment are installed at the top of the fermentation tank through bolts. The multiple sets of auxiliary equipment comprise a dehumidifier, a humidifier, a refrigerating unit, a heating device and an oxygen machine. According to the invention, materials in the fermentation tank can be turned and thrown comprehensively and efficiently, the temperature and humidity in the fermentation tank can be regulated and controlled while turning and throwing are carried out, synchronous ventilation can be completed while turning and throwing are carried out, the fermentation efficiency of the microbial fertilizer is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of microbial fertilizer production, in particular to a composting fermentation device for microbial fertilizer production. Background Art

[0002] Microbial fertilizers, as environmentally friendly biofertilizers that effectively improve soil microecology, promote crop growth, and enhance the quality of agricultural products, are playing an increasingly important role in modern green and sustainable agriculture. Their core active ingredients are active beneficial microorganisms and their metabolites, cultivated and fermented through specific processes. Composting is a key step in producing high-quality microbial fertilizers. This process involves aerobic fermentation and decomposition of organic materials (such as livestock and poultry manure, crop straw, and food waste) under controlled conditions (specifically, optimal temperature, humidity, and oxygen concentration). This not only achieves the harmless disposal and resource utilization of organic waste, but also provides an excellent, humus-rich carrier matrix for the subsequent inoculation of the target functional microbial agents. An efficient, stable, and controllable composting process is crucial to ensuring the activity, efficacy, and batch stability of the final fertilizer product.

[0003] During the production of existing microbial fertilizers, materials are piled in the open air or in simple sheds, relying on natural ventilation and manual turning. The production efficiency is low and is greatly affected by the environmental climate. It is difficult to maintain the optimal medium and high temperatures required for fermentation. The outer layer of materials is prone to dehydration and drying, and the inner materials are prone to anaerobic fermentation and odor due to lack of oxygen. The manual turning frequency is low and the depth is insufficient, resulting in uneven material mixing, inconsistent fermentation process, and the existence of fermentation dead corners. Compared with static composting, some fermentation tanks or fermentation tanks with turning mechanisms have a higher degree of mechanization, but there are dead corners in the turning process, resulting in uneven mixing of some materials, insufficient oxygen supply, and ineffective ventilation. Strong turning sometimes destroys the formed mycelium or causes excessive crushing of the materials. How to achieve uniform and precise temperature distribution throughout the fermentation pile while avoiding excessive energy consumption is still a major challenge. Excessively high temperatures can easily kill functional microorganisms, while excessively low temperatures lead to insufficient fermentation. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes a composting fermentation device for microbial fertilizer production, which can more accurately solve the above-mentioned problems of low production efficiency of existing microbial fertilizer, dead corners in turning over, ineffective ventilation, and poor temperature control.

[0005] The present invention is achieved through the following technical solutions: The present invention proposes a compost fermentation device for producing microbial fertilizer, comprising a fermentation tank, a door being provided on a side wall of the fermentation tank, a control box being installed on the top of the fermentation tank by bolts, a turning assembly being provided in the fermentation tank, the turning assembly being used to turn the compost, an adjustment assembly being provided in the fermentation tank, the adjustment assembly being used to adjust and control the temperature and humidity in the fermentation tank, and a ventilation assembly being provided in the fermentation tank, the ventilation assembly being used to ventilate and aerate the compost.

[0006] Furthermore, multiple groups of auxiliary equipment are installed on the top of the fermentation tank by bolts, and the multiple groups of auxiliary equipment are respectively a dehumidifier, a humidifier, a refrigeration unit, a heating device and an oxygen machine.

[0007] Furthermore, the flipping assembly includes a motor frame, which is mounted on the side wall of the fermentation tank by bolts, a first motor is mounted on the inner wall of the motor frame by bolts, a No. 1 screw is mounted on the output end of the first motor, a first screw nut is mounted on the outside of the No. 1 screw, a second motor is mounted on the side wall of the first screw nut by bolts, a transmission rod is mounted on the output end of the second motor, a first gear is mounted on the outside of the transmission rod, a fixed disk is mounted on the outside of the transmission rod, multiple groups of connecting rods are rotatably mounted on the side wall of the fixed disk, and multiple groups of flipping blades are evenly distributed on the side wall of the connecting rod.

[0008] Furthermore, a second gear is mounted on both ends of the connecting rod, a connecting cylinder is rotatably mounted on the end of the transmission rod, a fixed rod is rotatably mounted on the other end of the connecting cylinder, a third gear is mounted on the outside of the fixed rod, a gear ring is mounted on the outside of the second gear, and two sets of contact switches are symmetrically mounted on the inner wall of the fermentation tank.

[0009] Furthermore, the first screw nut is slidably arranged with the inner wall of the fermentation tank, the second gear is meshed with the first gear, the third gear, and the gear ring for transmission, the gear ring is slidably arranged with the inner wall of the fermentation tank through the cross bar, the contact switch is connected with the first motor, a cavity is opened in the connecting cylinder, and the fixing rod is hollow.

[0010] Furthermore, the adjustment component includes a No. 2 screw rod, which is rotatably installed in the fermentation tank, and the No. 2 screw rod and the No. 1 screw rod are both sleeved with a first transmission wheel, the first transmission wheel is sleeved with a first synchronous belt, the No. 2 screw rod is sleeved with a second screw nut, a limit rod is provided on one side of the No. 2 screw rod, a slider is sleeved with the outside of the limit rod, a fixing plate is installed at the bottom of the slider and the second screw rod nut, a plurality of temperature and humidity sensors are magnetically installed at the bottom of the fixing plate, and a plurality of air nozzles are provided at the bottom of the fixing plate.

[0011] Furthermore, the second screw nut is slidably arranged with the inner wall of the fermentation tank, the slider is slidably arranged with the limit rod, and multiple groups of the gas nozzles are respectively connected to corresponding auxiliary equipment through hoses.

[0012] Furthermore, the ventilation assembly includes multiple groups of air holes and connecting pipes, and the multiple groups of air holes are evenly distributed on the bottom surface of the connecting tube. The connecting tube is installed in the connecting tube and the fixed rod. A vertical rod is rotatably installed in the connecting tube, a sealing plate is installed on the outside of the vertical rod, a fourth gear is installed on the outside of the end of the vertical rod, a fifth gear is installed on the outside of the fixed rod, a stabilizing rod is rotatably installed in the connecting tube, and transmission gears are installed on the outside of the stabilizing rod and the vertical rod.

[0013] Furthermore, the ventilation assembly also includes a reciprocating screw, which is rotatably installed on the inner wall of the connecting tube, and the second transmission wheel is installed on the outside of the stabilizing rod and the reciprocating screw, and the second synchronous belt is installed on the outside of the second transmission wheel, and the reciprocating screw is installed on the outside of the reciprocating screw, and multiple groups of cleaning pins are evenly distributed on the bottom of the fixing bar.

[0014] Furthermore, the fixing bar is slidingly arranged with the inner wall of the connecting tube, the cleaning pin is correspondingly arranged with the air hole, the two groups of transmission gears are meshed for transmission, the fourth gear is meshed for transmission with the fifth gear, the sealing plate is correspondingly arranged with the connecting pipe, and the connecting pipe is connected with the auxiliary equipment through a hose.

[0015] Beneficial effects of the present invention: The present invention proposes a compost fermentation device for producing microbial fertilizer. Under the arrangement of a first motor, a first screw, a first screw nut, a second motor, a transmission rod, a first gear, a fixed plate, a connecting rod, a turning blade, a second gear, a gear ring and a contact switch, the material in the fermentation tank can be comprehensively turned over and over, thereby avoiding the occurrence of turning dead corners in the fermentation tank and achieving uniform mixing of the material. Turning over and over can instantly break up material agglomerates, loosen the material structure, create a large number of new gaps and surface areas, facilitate the contact between oxygen or air and the material, and thus facilitate the production of microbial fertilizer. With the arrangement of the second screw, the first transmission wheel, the first synchronous belt, the second screw nut, the fixing plate, the temperature and humidity sensor, the air nozzle, the auxiliary equipment and the control box, the temperature and humidity in the fermentation tank can be fully monitored and regulated, achieving uniform and precise regulation of the temperature and humidity in the fermentation tank, reducing energy consumption and facilitating the fermentation production of microbial fertilizer. With the arrangement of the fixed rod, third gear, connecting tube, air hole, connecting pipe, vertical rod, sealing sheet, fourth gear and fifth gear, synchronous ventilation can be achieved during the turning process, thereby directly and accurately injecting oxygen into the newly created gaps and loose areas, significantly improving oxygen utilization, saving 20-40% of aeration energy consumption, accelerating the metabolic activity of aerobic microorganisms, shortening the fermentation cycle, improving the maturity and uniformity of the compost, and reducing the generation of anaerobic odor; Under the arrangement of the transmission gear, the reciprocating screw rod, the second transmission wheel, the second synchronous belt, the fixing bar and the cleaning pin, the air holes can be cleaned to avoid blockage of the air holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the fermentation tank of the present invention; Figure 3 This is a schematic structural diagram of the flipping assembly of the present invention; Figure 4 This is a partial structural diagram of the flipping assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the regulating component of the present invention; Figure 6 It is a schematic structural diagram of the ventilation assembly of the present invention; Figure 7 It is a side view of the ventilation component of the present invention.

[0017] The reference numerals are as follows: Figure: 1, fermenter; 2, control box; 3, auxiliary equipment; 4, motor frame; 5, first motor; 6, first screw; 7, first screw nut; 8, second motor; 9, transmission rod; 10, first gear; 11, fixed plate; 12, connecting rod; 13, flipping blade; 14, second gear; 15, connecting tube; 16, fixed rod; 17, third gear; 18, gear ring; 19, contact switch; 20, second screw; 21, first transmission Wheel; 22. First synchronous belt; 23. Second screw nut; 24. Limit rod; 25. Slider; 26. Fixed plate; 27. Temperature and humidity sensor; 28. Air nozzle; 29. ​​Air hole; 30. Connecting pipe; 31. Vertical rod; 32. Sealing plate; 33. Fourth gear; 34. Fifth gear; 35. Stabilizing rod; 36. Transmission gear; 37. Reciprocating screw; 38. Second transmission wheel; 39. Second synchronous belt; 40. Fixed bar; 41. Cleaning pin. DETAILED DESCRIPTION

[0018] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to Figure 1-Figure 7 The present invention proposes a compost fermentation device for producing microbial fertilizer, comprising a fermentation tank 1, wherein a door is provided on the side wall of the fermentation tank 1, a control box 2 is installed on the top of the fermentation tank 1 by bolts, a controller and a power supply are provided in the control box 2, a turning assembly is provided in the fermentation tank 1, and the turning assembly is used to turn the compost, a regulating assembly is provided in the fermentation tank 1, and the regulating assembly is used to regulate and control the temperature and humidity in the fermentation tank 1, a ventilation assembly is provided in the fermentation tank 1, and the ventilation assembly is used to ventilate and aerate the compost, and multiple groups of auxiliary equipment 3 are installed on the top of the fermentation tank 1 by bolts, and the multiple groups of auxiliary equipment 3 are respectively a dehumidifier, a humidifier, a refrigeration unit, a heating device and an oxygen machine, which are used to regulate the temperature, humidity and oxygen amount in the fermentation tank 1.

[0020] The flipping assembly includes a motor frame 4, which is mounted on the side wall of the fermentation tank 1 by bolts and is used to install and fix the first motor 5. The inner wall of the motor frame 4 is equipped with a first motor 5 by bolts to drive the No. 1 screw rod 6 to rotate. The output end of the first motor 5 is equipped with a No. 1 screw rod 6, and the outer sleeve of the No. 1 screw rod 6 is equipped with a first screw nut 7. The side wall of the first screw rod nut 7 is equipped with a second motor 8 by bolts to drive the transmission rod 9 to rotate. The output end of the second motor 8 is equipped with a transmission rod 9, and the outer sleeve of the transmission rod 9 is equipped with a first gear 10 for transmitting the rotation of the transmission rod 9. The outer rotation sleeve of the transmission rod 9 is equipped with a fixed disk 11 for limiting and stabilizing multiple groups of connecting rods 12. The side wall of the fixed disk 11 is rotatably installed with multiple groups of connecting rods 12, and the side wall of the connecting rod 12 is evenly distributed with multiple groups of flipping blades 13. The flipping blades 13 on the side walls of the multiple groups of connecting rods 12 are staggered and are used to flip the material. The two ends of the connecting rod 12 are sleeved with a second gear 14 for transmitting the rotation of the first gear 10. The end of the transmission rod 9 is rotatably installed with a connecting cylinder 15, and the other end of the connecting cylinder 15 is rotatably installed with a fixed rod 16. The outside of the fixed rod 16 is sleeved with a third gear 17, and the outside of the second gear 14 is sleeved with a gear ring 18. Two groups of cross bars are provided on the side wall of the gear ring 18. The gear ring 18 limit sleeve is arranged on the outside of the multiple groups of second gears 14 to avoid the front and rear displacement of the gear ring 18 and ensure the gear The meshing between the first screw nut 7 and the second gear 14, the inner wall of the fermentation tank 1 is symmetrically installed with two groups of contact switches 19, which are used to limit the moving range of the first screw nut 7, the first screw nut 7 is slidingly set with the inner wall of the fermentation tank 1, the second gear 14 is meshed with the first gear 10, the third gear 17, and the gear ring 18 for transmission, and the gear ring 18 is slidingly set with the inner wall of the fermentation tank 1 through the cross bar, the contact switch 19 is connected with the first motor 5, a cavity is opened in the connecting cylinder 15, and the fixed rod 16 is hollow. When the material in the fermentation tank 1 is turned over, the second motor 8 is used to drive the transmission rod 9 to rotate, and the rotation of the transmission rod 9 drives the first gear 10 to rotate, and the rotation of the first gear 10 drives multiple groups of second gears 14 to rotate. The second gear 14 is driven by the first motor 5 to rotate in a clockwise direction, and the rotation of the second gear 14 drives the third gear 17 to rotate. Under the limit of the gear ring 18, the second gear 14 revolves around the first gear 10 and the third gear 17. The revolution of the second gear 14 drives the connecting rod 12 to revolve, and the revolution of the connecting rod 12 drives the flipping blade 13 to revolve. The rotation of the second gear 14 drives the connecting rod 12 to rotate, and the rotation of the connecting rod 12 drives the flipping blade 13 to rotate. The flipping blade 13 is in a vertical state at the lowest point and the highest point, so that the material in the fermentation tank 1 can be circulated and efficiently flipped. The first motor 5 drives the No. 1 screw rod 6 clockwise, and the rotation of the No. 1 screw rod 6 drives the first screw rod nut 7 to move right.The movement of the first screw nut 7 drives the multiple connecting rods 12 and the turning blades 13 to the right. After the crossbar touches the right contact switch 19, the first motor 5 drives the first screw 6 to reverse, and the multiple connecting rods 12 and the turning blades 13 move to the left until they touch the left contact switch 19. This cycle repeats, avoiding the occurrence of turning dead corners in the fermentation tank 1 and achieving uniform mixing of the materials. Turning can instantly break up material lumps, loosen the material structure, and create a large amount of new gaps and surface area, which is conducive to the contact between oxygen or air and the material, and thus promotes the production of microbial fertilizer.

[0021] The adjusting assembly includes a No. 2 screw rod 20, which is rotatably installed in the fermentation tank 1. The No. 2 screw rod 20 and the No. 1 screw rod 6 are both sleeved with a first transmission wheel 21, and the first transmission wheel 21 is sleeved with a first synchronous belt 22 on the outside for transmitting the rotation of the No. 1 screw rod 6. The No. 2 screw rod 20 is sleeved with a second screw nut 23 on the outside, and a limit rod 24 is provided on one side of the No. 2 screw rod 20 for limiting the movement of the slider 25. The limit rod 24 is sleeved with a slider 25 on the outside for driving the fixed plate 26 to move and ensure the horizontal movement of the fixed plate 26. The slider 25 and the second screw rod nut 23 are installed at the bottom of the fixed plate 26. The bottom of the fixed plate 26 is magnetically installed with multiple groups of temperature and humidity sensors 27 for detecting the temperature and humidity in the fermentation tank 1. The bottom of the fixed plate 26 is provided with multiple The plurality of air nozzles 28 are connected to the corresponding auxiliary equipment 3 through hoses. Under the transmission of the first transmission wheel 21 and the first synchronous belt 22, the rotation of the No. 1 screw 6 drives the No. 2 screw 20 to rotate, and the rotation of the No. 2 screw 20 drives the second screw nut 23 to move. The movement of the second screw nut 23 drives the fixed plate 26 to move, and the movement of the fixed plate 26 drives the temperature and humidity sensor 27 and the air nozzle 28 to move. With the cooperation of the temperature and humidity sensor 27, the temperature and humidity in the fermenter 1 can be fully monitored. With the cooperation of the plurality of auxiliary equipment 3 and the air nozzle 28, the temperature and humidity in the fermenter 1 can be regulated, so as to achieve uniform and precise regulation of the temperature and humidity in the fermenter 1, reduce energy consumption, and be beneficial to the fermentation production of microbial fertilizer.

[0022] The ventilation assembly includes multiple groups of air holes 29 and connecting pipes 30. Multiple groups of air holes 29 are evenly distributed on the bottom surface of the connecting tube 15 to ensure the outflow of oxygen. The connecting pipe 30 is installed through the connecting tube 15 and the fixed rod 16 for transporting oxygen. A vertical rod 31 is installed in the connecting tube 30 for rotation. A sealing piece 32 is installed on the outside of the vertical rod 31 for controlling the opening and closing of the connecting pipe 30. A fourth gear 33 is installed on the outside of the end of the vertical rod 31. A fifth gear 34 is installed on the outside of the fixed rod 16 for transmitting the rotation of the fixed rod 16. A stabilizing rod 35 is installed in the connecting tube 30 for rotation. The stabilizing rod 35 and the outside of the vertical rod 31 are evenly installed. A transmission gear 36 is sleeved and installed to transmit the rotation of the vertical rod 31. The ventilation assembly also includes a reciprocating screw rod 37, which is rotatably installed on the inner wall of the connecting cylinder 15 to drive the fixed bar 40 to move back and forth up and down. The outside of the stabilizing rod 35 and the reciprocating screw rod 37 are sleeved and installed with a second transmission wheel 38. The outside of the second transmission wheel 38 is sleeved and installed with a second synchronous belt 39 to transmit the rotation of the stabilizing rod 35. The outside of the reciprocating screw rod 37 is sleeved and installed with a fixed bar 40. A plurality of groups of cleaning pins 41 are evenly distributed on the bottom of the fixed bar 40 for cleaning the air holes 29 to avoid blockage of the air holes 29. The fixed bar 40 is slidably arranged with the inner wall of the connecting cylinder 15. The cleaning pin 41 is provided corresponding to the air hole 29, the two groups of the transmission gears 36 are meshed for transmission, the fourth gear 33 is meshed for transmission with the fifth gear 34, the sealing piece 32 is provided corresponding to the connecting pipe 30, and the connecting pipe 30 is connected to the auxiliary equipment 3 through a hose. When the material is flipped, the rotation of the third gear 17 drives the fixed rod 16 to rotate, the rotation of the fixed rod 16 drives the fourth gear 33 to rotate, the rotation of the fourth gear 33 drives the fifth gear 34 to rotate, the rotation of the fifth gear 34 drives the vertical rod 31 to rotate, and the rotation of the vertical rod 31 drives the sealing piece 32 to rotate, so that the opening and closing of the connecting pipe 30 can be controlled. When the flipping blade 13 is at the lowest point, the connecting pipe 30 is in an open state, and the material is flipped. Synchronous ventilation is achieved. Synchronous ventilation can directly and accurately inject oxygen into the newly created gaps and loose areas, significantly improving oxygen utilization, saving 20-40% of aeration energy consumption, accelerating the metabolic activity of aerobic microorganisms, shortening the fermentation cycle, improving the maturity and uniformity of compost, and reducing the generation of anaerobic odor. Under the transmission of the transmission gear 36, the rotation of the vertical rod 31 drives the stabilizing rod 35 to rotate. Under the transmission of the second transmission wheel 38 and the second synchronous belt 39, the rotation of the stabilizing rod 35 drives the reciprocating screw 37 to rotate. The rotation of the reciprocating screw 37 drives the fixing bar 40 to move back and forth up and down. The movement of the fixing bar 40 drives the cleaning pin 41 to move, which can clean the air hole 29 and avoid blockage of the air hole 29.

[0023] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A composting fermentation device for producing microbial fertilizer, characterized in that: The invention comprises a fermentation tank (1), wherein a door is provided on a side wall of the fermentation tank (1), a control box (2) is installed on the top of the fermentation tank (1) by means of bolts, a turning assembly is provided in the fermentation tank (1), and the turning assembly is used to turn the compost, a regulating assembly is provided in the fermentation tank (1), and the regulating assembly is used to regulate and control the temperature and humidity in the fermentation tank (1), and a ventilation assembly is provided in the fermentation tank (1), and the ventilation assembly is used to ventilate and aerate the compost.

2. A composting fermentation device for producing microbial fertilizer according to claim 1, characterized in that: A plurality of auxiliary equipment (3) are installed on the top of the fermentation tank (1) by means of bolts. The plurality of auxiliary equipment (3) are respectively a dehumidifier, a humidifier, a refrigeration unit, a heating device and an oxygen machine.

3. A composting fermentation device for producing microbial fertilizer according to claim 1, characterized in that: The flipping assembly comprises a motor frame (4), the motor frame (4) being mounted on the side wall of the fermentation tank (1) by means of bolts, a first motor (5) being mounted on the inner wall of the motor frame (4) by means of bolts, a first screw rod (6) being mounted on the output end of the first motor (5), a first screw rod nut (7) being sleeved on the outside of the first screw rod (6), a second motor (8) being mounted on the side wall of the first screw rod nut (7) by means of bolts, a transmission rod (9) being mounted on the output end of the second motor (8), a first gear (10) being sleeved on the outside of the transmission rod (9), a fixed disk (11) being rotatably sleeved on the outside of the transmission rod (9), a plurality of groups of connecting rods (12) being rotatably mounted on the side wall of the fixed disk (11), and a plurality of groups of flipping blades (13) being evenly distributed and mounted on the side wall of the connecting rod (12).

4. A composting fermentation device for producing microbial fertilizer according to claim 3, characterized in that: The second gear (14) is sleeved and mounted on both ends of the connecting rod (12), a connecting cylinder (15) is rotatably mounted on the end of the transmission rod (9), a fixing rod (16) is rotatably mounted on the other end of the connecting cylinder (15), a third gear (17) is sleeved and mounted on the outside of the fixing rod (16), a gear ring (18) is sleeved and mounted on the outside of the second gear (14), and two sets of contact switches (19) are symmetrically mounted on the inner wall of the fermentation tank (1).

5. A composting fermentation device for producing microbial fertilizer according to claim 4, characterized in that: The first screw nut (7) is slidably arranged with the inner wall of the fermentation tank (1), the second gear (14) is meshed with the first gear (10), the third gear (17), and the gear ring (18) for transmission, the gear ring (18) is slidably arranged with the inner wall of the fermentation tank (1) through a cross bar, the contact switch (19) is connected to the first motor (5), a cavity is opened in the connecting cylinder (15), and the fixing rod (16) is hollow.

6. A composting fermentation device for producing microbial fertilizer according to claim 1, characterized in that: The adjustment component includes a second screw rod (20), the second screw rod (20) is rotatably installed in the fermentation tank (1), the second screw rod (20) and the first screw rod (6) are both sleeved with a first transmission wheel (21), the first transmission wheel (21) is sleeved with a first synchronous belt (22), the second screw rod (20) is sleeved with a second screw nut (23), a limit rod (24) is provided on one side of the second screw rod (20), a slider (25) is sleeved on the outside of the limit rod (24), a fixing plate (26) is installed at the bottom of the slider (25) and the second screw rod nut (23), a plurality of temperature and humidity sensors (27) are magnetically installed at the bottom of the fixing plate (26), and a plurality of air nozzles (28) are provided at the bottom of the fixing plate (26).

7. A composting fermentation device for producing microbial fertilizer according to claim 6, characterized in that: The second screw nut (23) is slidably arranged on the inner wall of the fermentation tank (1), the slider (25) is slidably arranged on the limit rod (24), and multiple groups of the gas nozzles (28) are connected to the corresponding auxiliary equipment (3) through hoses.

8. A composting fermentation device for producing microbial fertilizer according to claim 1, characterized in that: The ventilation assembly includes multiple groups of air holes (29) and connecting pipes (30), and the multiple groups of air holes (29) are evenly distributed and opened on the bottom surface of the connecting tube (15). The connecting pipe (30) is installed in the connecting tube (15) and the fixed rod (16). A vertical rod (31) is installed and rotatably installed in the connecting tube (30). A sealing plate (32) is installed on the outside of the vertical rod (31). A fourth gear (33) is installed and installed on the outside of the end of the vertical rod (31). A fifth gear (34) is installed and installed on the outside of the fixed rod (16). A stabilizing rod (35) is installed and rotatably installed in the connecting tube (30). A transmission gear (36) is installed on the outside of the stabilizing rod (35) and the vertical rod (31).

9. A composting fermentation device for producing microbial fertilizer according to claim 8, characterized in that: The ventilation assembly further comprises a reciprocating screw rod (37), the reciprocating screw rod (37) being rotatably mounted on the inner wall of the connecting cylinder (15), the outer sides of the stabilizing rod (35) and the reciprocating screw rod (37) being sleeved with a second transmission wheel (38), the outer side of the second transmission wheel (38) being sleeved with a second synchronous belt (39), the outer side of the reciprocating screw rod (37) being sleeved with a fixing bar (40), and the bottom of the fixing bar (40) being evenly distributed with a plurality of cleaning pins (41).

10. A composting fermentation device for producing microbial fertilizer according to claim 9, characterized in that: The fixing bar (40) is slidably arranged on the inner wall of the connecting tube (15), the cleaning pin (41) is correspondingly arranged on the air hole (29), the two sets of transmission gears (36) are meshed for transmission, the fourth gear (33) is meshed for transmission with the fifth gear (34), the sealing sheet (32) is correspondingly arranged on the connecting tube (30), and the connecting tube (30) is connected to the auxiliary equipment (3) through a hose.

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