Compound microbial fertilizer production line

Abstract

The utility model discloses a kind of composite microbial fertilizer production line, belong to microbial fertilizer production equipment technical field.The utility model includes drying cylinder, the input end of drying cylinder has granulating device, mixing device and raw material pretreatment device in proper order, first and last are connected, hot air is sent to heating cylinder and drying cylinder by fan and heating plate, hot air passes through air inlet groove and enters drying cylinder inside and contacts with material to carry out drying to it, simultaneously, drive motor is started to drive gear rotation, gear rotation drives gear ring and drying cylinder rotation, make the material in the inside of drying cylinder tumble, make it evenly heated, accelerate moisture evaporation, hot air of fan blowing blows the moisture of evaporation to top box, simultaneously, residual heat is recycled into bottom box again to carry out cyclic utilization, reach through setting double-layer drying structure, tumble when carrying out drying to microbial fertilizer, improve drying uniformity and drying efficiency, avoid the problem of uneven temperature destruction biological bacteria activity when drying.

Description

Technical Field

[0001] This utility model belongs to the technical field of microbial fertilizer production equipment, specifically a compound microbial fertilizer production line. Background Technology

[0002] Microbial fertilizer is a novel type of fertilizer bioproduct that utilizes the life activities of active (reproducing) microorganisms to provide crops with the necessary nutrients (fertilizer). Drying is a crucial step in the production of compound microbial fertilizers. Existing production line drying equipment often suffers from uneven drying and low efficiency, easily leading to excessively high local moisture content in the fertilizer, affecting its storage and quality. Furthermore, excessively high drying temperatures can damage the activity of the microorganisms, reducing the fertilizer's effectiveness. Therefore, improving drying efficiency is essential to ensuring the quality of compound microbial fertilizers.

[0003] Therefore, it is necessary to modify it by setting up a double-layer drying structure, which tumbles the microbial fertilizer during drying to improve drying uniformity and efficiency, and avoid the problem of uneven temperature during drying damaging the activity of the microorganisms. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a composite microbial fertilizer production line. This line features a double-layer drying structure that tumbles the microbial fertilizer during drying, improving drying uniformity and efficiency. This avoids the problem of uneven temperature during drying damaging the activity of the microorganisms. It solves the problems of uneven drying and low efficiency often found in existing production line drying equipment, which can easily lead to excessively high local moisture content in the microbial fertilizer, affecting product storage and quality. Furthermore, excessively high drying temperatures can damage the activity of the microorganisms, reducing the fertilizer's effectiveness.

[0005] This utility model provides the following technical solution: a compound microbial fertilizer production line, including a drying cylinder. A granulation device, a mixing device, and a raw material pretreatment device are sequentially connected end-to-end at the input end of the drying cylinder. The output end of the raw material pretreatment device is connected to the input end of the mixing device, and the output end of the mixing device is connected to the input end of the granulation device. A feed pipe is connected to the left end of the drying cylinder, and the output end of the granulation device is connected to the left end of the feed pipe. A heating cylinder is fitted onto the surface of the drying cylinder. A bottom box is connected to the bottom of the heating cylinder, and a top box is connected to the top of the heating cylinder. Air inlet slots are formed around the perimeter of the surface of the drying cylinder, and wire mesh plates are fixedly connected to the surface of the air inlet slots. Both sides of the surface of the drying cylinder are rotatably connected to the inner wall of the heating cylinder. The bottom box has recycling pipes connected to both the front and rear sides, and the top of the recycling pipes is connected to the surface of the top box. Heating plates are fixedly connected to both the front and rear sides of the upper part of the bottom box. Several evenly distributed fans are fixedly connected to the lower part of the bottom box, with the output ends of the fans facing upwards. The surface of the left end of the drying cylinder extends to the left side of the heating cylinder and is fixedly connected to a gear ring. The left side of the bottom box is fixedly connected to a drive motor through a support plate. The output end of the drive motor is equipped with a gear, and the surface of the gear meshes with the surface of the gear ring. The right end of the drying cylinder is connected to a discharge valve pipe. The heating cylinder is equipped with a temperature sensor (not shown) and a humidity sensor (not shown), and both the temperature sensor and the humidity sensor are electrically connected to the fans and the heating plates.

[0006] The beneficial effects of this utility model are as follows:

[0007] 1. This utility model uses a raw material pretreatment device to feed straw, livestock and poultry manure, fertilizer, and other raw materials into a crusher for crushing. Then, a screening machine selects materials with suitable particle sizes, while materials that do not meet the requirements are returned to the crusher for re-crushing. The screened materials and microbial agents enter the mixing tank of a mixing device through the feed inlet. The stirring paddle rotates and stirs, ensuring thorough and uniform mixing of all raw materials. The mixed material is then conveyed to a granulation device, where it is granulated and then transported into a drying drum. Hot air is blown into the drying drum and heating drum by starting a fan and heating plates. The hot air enters the drying drum through the air inlet slot and comes into contact with the material to dry it. Simultaneously, the drive motor is started. The rotation of the gears causes the gear ring and drying cylinder to rotate, tumbling the material inside the drying cylinder and ensuring even heating, thus accelerating moisture evaporation. The hot air blown by the fan blows the evaporated moisture towards the top chamber, while residual heat is recycled back into the bottom chamber through the recovery pipe. Temperature and humidity sensors monitor the temperature and humidity inside the heating cylinder and control the power of the fan and heating plates to prevent overheating. This double-layer drying structure, which tumbles the microbial fertilizer during drying, improves drying uniformity and efficiency, and avoids the problem of uneven temperature damaging the activity of the microorganisms during drying.

[0008] 2. This utility model, by setting a first sealing bearing, seals the left and right sides of the drying drum without affecting its rotation, reducing heat dissipation and keeping its internal temperature stable. By setting a second sealing bearing, it achieves a sealing effect at the connection between the feed pipe and the output end of the granulation device, preventing material leakage from affecting its use. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a cross-sectional view of the heating cylinder of this utility model.

[0011] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0012] Figure 4 This is a rear view schematic diagram of the heating cylinder structure of this utility model.

[0013] Figure 5 This is a rear view schematic diagram of the drying cylinder structure of this utility model.

[0014] Figure 6 This utility model Figure 3 A magnified structural diagram of A in the diagram. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] like Figures 1 to 6As shown, the compound microbial fertilizer production line of this embodiment includes a drying cylinder 1. A granulation device 2, a mixing device 3, and a raw material pretreatment device 4 are sequentially connected end-to-end at the input end of the drying cylinder 1. The output end of the raw material pretreatment device 4 is connected to the input end of the mixing device 3, and the output end of the mixing device 3 is connected to the input end of the granulation device 2. A feed pipe 5 is connected to the left end of the drying cylinder 1, and the output end of the granulation device 2 is connected to the left end of the feed pipe 5. All devices are connected via a screw conveyor. A heating cylinder 6 is fitted onto the surface of the drying cylinder 1. A bottom box 7 is connected to the bottom of the heating cylinder 6, and a top box 8 is connected to the top of the heating cylinder 6. Air inlet slots are formed around the surface of the drying cylinder 1, and a wire mesh plate 9 is fixedly connected to the surface of the air inlet slots. The aperture of the wire mesh plate 9 is smaller than the raw material granulation diameter. Both sides of the surface of the drying cylinder 1 are connected to the inner surface of the heating cylinder 6. The bottom box 7 is rotatably connected to the wall. The left and right sides of the front and rear sides of the bottom box 7 are connected to the recovery pipes 10. The top of the recovery pipes 10 is connected to the surface of the top box 8. The front and rear sides of the inner wall of the bottom box 7 are fixedly connected to the heating plate 11. Several fans 12 are evenly distributed inside the bottom box 7. The output end of the fans 12 faces upward. The surface of the left end of the drying cylinder 1 extends to the left side of the heating cylinder 6 and is fixedly connected to the gear ring 13. The left side of the bottom box 7 is fixedly connected to the drive motor 14 through the support plate. The output end of the drive motor 14 is provided with a gear 15. The surface of the gear 15 meshes with the surface of the gear ring 13. The right end of the drying cylinder 1 is connected to the discharge valve pipe 16. The heating cylinder 6 is equipped with a temperature sensor (not shown) and a humidity sensor (not shown). The temperature sensor and the humidity sensor are electrically connected to the fans 12 and the heating plate 11.

[0017] refer to Figure 2 A first sealing bearing 17 is fixedly connected to both the left and right sides of the surface of the drying cylinder 1. The outer surface of the first sealing bearing 17 is fixedly connected to the inner wall of the heating cylinder 6. A second sealing bearing 18 is fixedly connected to the inner wall of the left end of the feed pipe 5. The inner surface of the second sealing bearing 18 is fixedly connected to the surface of the output end of the granulation device 2.

[0018] In this embodiment, by setting a first sealing bearing 17, the left and right sides of the drying cylinder 1 are sealed without affecting its rotation, thereby reducing heat dissipation and keeping its internal temperature stable. By setting a second sealing bearing 18, the connection between the feed pipe 5 and the output end of the granulation device 2 is sealed, preventing material leakage from affecting its use.

[0019] refer to Figure 2 The top of the top box 8 is movably connected to the top plate 19 by bolts, and the bottom of the top plate 19 is fixedly connected to the breathable drying block 20 located inside the top box 8. The bottom of the breathable drying block 20 extends into the interior of the heating box.

[0020] In this embodiment, the combination of the top plate 19 and the breathable drying block 20 dries the air containing moisture that enters the top chamber 8. The hot air containing moisture is dried and then enters the bottom chamber 7 through the recovery pipe 10 for heat circulation, which improves the drying effect. At the same time, the breathable drying block 20 can be replaced and cleaned by removing the top plate 19.

[0021] refer to Figure 1 The bottom box 7 has air intake slots 21 on both the front and rear sides, located below the input end of the fan 12. The air intake slots 21 are equipped with removable air filters 22.

[0022] This embodiment increases the air intake of the blower 12 by setting the air intake slot 21 and the air filter element 22, thereby increasing the air volume when it is in use. At the same time, it filters the air entering the device to prevent dust from adhering to the surface of the material and affecting the processing effect.

[0023] refer to Figure 1 The output end of the drive motor 14 is fixedly connected to the reducer 23, and the output end of the reducer 23 is fixedly connected to the left side of the gear 15.

[0024] In this embodiment, by setting a speed reducer 23, the speed of the drive motor 14 can be adjusted as needed to improve the drying effect. At the same time, it increases the torque of the drive motor 14, making its operation more stable and smooth, and avoiding overload of the drive motor 14, which would affect its use.

[0025] refer to Figure 2 The inner wall of the drying cylinder 1 is provided with an anti-stick coating, and the surface of the heating cylinder 6 is provided with a heat insulation layer.

[0026] This embodiment avoids the situation where materials stick to the inside of the drying cylinder 1 during drying by setting an anti-stick coating, which affects the processing effect. By setting a heat insulation layer, the heat dissipation from the surface of the heating cylinder 6 is reduced, the internal temperature is kept stable, and the drying effect is improved.

[0027] This invention uses a raw material pretreatment device 4 to feed straw, livestock manure, fertilizer, and other raw materials into a crusher for crushing. Then, a screening machine selects materials with suitable particle sizes, while materials that do not meet the requirements are returned to the crusher for re-crushing. The screened materials and microbial agents enter the mixing tank of the mixing device 3 through the feed inlet. The stirring paddle rotates and stirs, ensuring thorough and uniform mixing of all raw materials. The mixed material is then conveyed to the granulation device 2, where it is granulated and then transported into the drying cylinder 1. Hot air is blown into the heating cylinder 6 and drying cylinder 1 by starting the fan 12 and heating plate 11. The hot air enters the drying cylinder 1 through the air inlet slot and comes into contact with the materials to dry them. Simultaneously, the drive motor 14 is started to drive the gears. When gear 15 rotates, it drives gear ring 13 and drying cylinder 1 to rotate, causing the material inside drying cylinder 1 to tumble, ensuring even heating and accelerating moisture evaporation. Hot air blown by fan 12 blows the evaporated moisture towards top chamber 8, while residual heat is recycled back into bottom chamber 7 through recovery pipe 10. Temperature and humidity sensors detect the temperature and humidity inside heating cylinder 6 and control the power of fan 12 and heating plate 11 to prevent overheating. This achieves the goal of improving drying uniformity and efficiency by tumbling the microbial fertilizer during drying through a double-layer drying structure, thus avoiding the problem of uneven temperature damaging the activity of microorganisms during drying.

Claims

1. A compound microbial fertilizer production line, comprising a drying drum (1), characterized in that: The input end of the drying cylinder (1) is connected in sequence with a granulation device (2), a mixing device (3), and a raw material pretreatment device (4). The output end of the raw material pretreatment device (4) is connected to the input end of the mixing device (3), and the output end of the mixing device (3) is connected to the input end of the granulation device (2). The left end of the drying cylinder (1) is connected to a feed pipe (5), and the output end of the granulation device (2) is connected to the left end of the feed pipe (5). A heating cylinder (6) is fitted on the surface of the drying cylinder (1). The bottom of the heating cylinder (6) is connected to a bottom box (7), and the top of the heating cylinder (6) is connected to a top box (8). Air inlet slots are opened around the surface of the drying cylinder (1), and a wire mesh plate (9) is fixedly connected to the surface of the air inlet slots. Both sides of the surface of the drying cylinder (1) are rotatably connected to the inner wall of the heating cylinder (6). The left and right sides of the front and rear sides of the bottom box (7) are connected to recovery pipes (10). The top of the recycling pipe (10) is connected to the surface of the top box (8). Heating plates (11) are fixedly connected to the front and rear sides of the inner wall of the bottom box (7). Several fans (12) are fixedly connected to the bottom of the bottom box (7) with evenly distributed distribution. The output end of the fan (12) faces upward. The surface of the left end of the drying cylinder (1) extends to the left side of the heating cylinder (6) and is fixedly connected to the toothed ring (13). The left side of the bottom box (7) is fixedly connected to the drive motor (14) through the support plate. The output end of the drive motor (14) is provided with a gear (15). The surface of the gear (15) meshes with the surface of the toothed ring (13). The right end of the drying cylinder (1) is connected to the discharge valve pipe (16). The interior of the heating cylinder (6) is provided with a temperature sensor (not shown) and a humidity sensor (not shown). The temperature sensor and the humidity sensor are electrically connected to the fan (12) and the heating plate (11).

2. The compound microbial fertilizer production line according to claim 1, characterized in that: The drying cylinder (1) has a first sealing bearing (17) fixedly connected to both the left and right sides of its surface. The outer surface of the first sealing bearing (17) is fixedly connected to the inner wall of the heating cylinder (6). The inner wall of the left end of the feed pipe (5) is fixedly connected to a second sealing bearing (18). The inner surface of the second sealing bearing (18) is fixedly connected to the surface of the output end of the granulation device (2).

3. The compound microbial fertilizer production line according to claim 2, characterized in that: The top of the top box (8) is movably connected to a top plate (19) by bolts, and the bottom of the top plate (19) is fixedly connected to a breathable drying block (20) located inside the top box (8), with the bottom of the breathable drying block (20) extending into the interior of the heating box.

4. The compound microbial fertilizer production line according to claim 3, characterized in that: The bottom box (7) has air inlet slots (21) on both the front and rear sides, located below the input end of the fan (12), and the air inlet slots (21) are equipped with removable air filters (22).

5. A compound microbial fertilizer production line according to claim 4, characterized in that: The output end of the drive motor (14) is fixedly connected to a reducer (23), and the output end of the reducer (23) is fixedly connected to the left side of the gear (15).

6. The compound microbial fertilizer production line according to claim 5, characterized in that: The inner wall of the drying cylinder (1) is provided with an anti-stick coating, and the surface of the heating cylinder (6) is provided with a heat insulation layer.

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