Intelligent ventilation equipment for solid fermentation of compound microbial fertilizer

By automatically controlling the opening and closing of the ventilation vents through temperature sensors and PLC controllers, combined with a turning mechanism, the problems of high labor intensity and uneven fermentation caused by manual operation are solved, realizing the automation and high-efficiency fermentation of compound microbial fertilizer fermentation equipment.

CN224677993UActive Publication Date: 2026-08-25SHANDONG BAIWO BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521163174.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-08-25
Estimated Expiration
2035-06-09

AI Technical Summary

Technical Problem

In existing compound microbial fertilizer fermentation equipment, ventilation operation requires manual control of the sealed door, which leads to high labor intensity and makes it easy to forget to open or close it on time, affecting fermentation efficiency.

Method used

Temperature sensors are used to monitor the temperature inside the fermenter in real time. A PLC controller automatically controls a servo motor to drive the sealing baffle to open or close the ventilation port. Combined with a turning mechanism and a feeding shielding mechanism, automated operation is achieved.

Benefits of technology

This reduces the labor intensity of operators, ensures timely opening and closing of ventilation openings, improves fermentation efficiency and fertilizer quality, and avoids problems such as material accumulation and insufficient local fermentation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides compound microorganism fertilizer solid fermentation intelligence ventilation equipment relates to fertilizer fermentation equipment technical field, including fermentation tank, be provided with the mechanism of turning over in the fermentation tank, the outer surface of fermentation tank is provided with the feed shielding mechanism. In the utility model, through temperature sensor real time monitoring the temperature in the fermentation tank, and the data transmission is given to PLC controller, and the PLC controller is according to preset temperature value automatic control the operation of first servo motor to realize the automatic opening and closing of the sealing baffle at the ventilation opening, when the existing equipment is in the ventilation operation, the operator needs to pass through the temperature of display screen display, then through the manual opening and closing the sealing door of the outer ventilation opening of fermentation kettle, but manual operation is limited to the working state and time arrangement of operator, increase the labor intensity of staff, and it is extremely easy to appear the problem of forgetting to open or close the sealing door in time.
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Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer fermentation equipment, and in particular to an intelligent ventilation device for solid fermentation of compound microbial fertilizer. Background Technology

[0002] Compound microbial fertilizer is a new type of fertilizer that effectively combines beneficial microorganisms with organic materials and inorganic nutrients. It has multiple advantages and wide applications. The solid form of compound microbial fertilizer is in the form of solid granules. In the solid fermentation process of compound microbial fertilizer, ventilation is a key link. Suitable ventilation conditions can provide sufficient oxygen for microorganisms, promote their growth and metabolism, thereby improving fermentation efficiency and fertilizer quality.

[0003] The existing equipment maintains a good oxygen environment inside the fermentation vessel through its ventilation openings. During operation, several ventilation openings and sealed doors outside the fermentation vessel allow for proper fermentation when ventilation is not required. Furthermore, a temperature detection device inside the fermentation vessel monitors the fertilizer temperature in real time, displaying the readings on a screen on one side. This allows for timely intervention when the internal temperature becomes too high.

[0004] When the existing equipment is used for ventilation, the operator needs to manually open and close the sealed door at the external ventilation opening of the fermenter by referring to the temperature displayed on the screen. However, manual operation is limited by the operator's work status and time schedule, which increases the labor intensity of the staff and makes it easy to forget to open or close the sealed door on time. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology where operators need to manually open and close the sealed door at the external ventilation opening of the fermentation vessel by viewing the temperature on the display screen. However, manual operation is limited by the operator's work status and time schedule, which increases the labor intensity of the staff and makes it easy to forget to open or close the sealed door on time. Therefore, the proposed invention is an intelligent ventilation device for solid fermentation of compound microbial fertilizer.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a compound microbial fertilizer solid fermentation intelligent ventilation equipment, including a fermentation tank, a turning mechanism inside the fermentation tank, a feeding shielding mechanism on the outer surface of the fermentation tank, a ventilation opening on the outer surface of the fermentation tank, two fixed frames fixedly connected to both sides of the ventilation opening, a screw rotatably connected to the inner side of one of the fixed frames, and a fixed rod fixedly connected to the inner side of the other fixed frame, a lifting frame movably sleeved on the outer surface of the screw and the fixed rod, a sealing baffle fixedly connected to the top of the lifting frame, a first servo motor fixedly installed on the top of one of the fixed frames, the output end of the first servo motor movably passing through one of the fixed frames and fixedly connected to the smooth end of the screw, a temperature sensor on the inner surface of the fermentation tank, and a PLC controller installed on the outer surface of the fermentation tank, the wiring terminal of the PLC controller being connected to the wiring port inside the equipment.

[0007] Preferably, the turning mechanism includes a first rotating rod, which is rotatably connected inside the fermentation tank. A second rotating rod and a third rotating rod are rotatably connected inside the fermentation tank. A stirring plate is fixedly connected to the outer surface of the first rotating rod, the second rotating rod, and the third rotating rod.

[0008] Preferably, the top ends of the first, second, and third rotating rods are movably inserted through the fermentation tank, and the outer surfaces of the first and second rotating rods are fixedly connected with first rotating wheels, and the outer surfaces of the two first rotating wheels are driven by a first synchronous belt.

[0009] Preferably, the outer surfaces of the first rotating rod and the third rotating rod are fixedly connected to second rotating wheels, and the outer surfaces of the two second rotating wheels are connected to a second synchronous belt.

[0010] Preferably, a mounting frame is fixedly connected to the top of the fermenter, and a second servo motor is fixedly installed on the top inner side of the mounting frame. The output end of the second servo motor is fixedly connected to the top end of the third rotating rod.

[0011] Preferably, the feeding shielding mechanism includes a feeding port, which is disposed on the outer surface of the fermenter, and a support frame is fixedly connected to the top of the feeding port.

[0012] Preferably, the inner side of the support frame is rotatably connected to a rotating shaft, and a cover plate is fixedly sleeved on the outer surface of the rotating shaft.

[0013] Preferably, the inner side of the support frame is provided with an arc-shaped limiting groove, a limiting rod is slidably connected in the arc-shaped limiting groove, a circular plate is fixedly sleeved on the outer surface of the rotating shaft, and one end of the limiting rod is fixedly connected to the circular plate.

[0014] Preferably, a third servo motor is fixedly installed on one side of the support frame, and the output end of the third servo motor movably passes through the support frame and is fixedly connected to the rotating shaft.

[0015] Preferably, the bottom of the fermenter is fixedly connected to a discharge pipe, and a discharge valve is installed on the discharge pipe.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the temperature inside the fermenter is monitored in real time by a temperature sensor, and the data is transmitted to the PLC controller. The PLC controller automatically controls the operation of the first servo motor according to the preset temperature value, thereby realizing the automatic opening and closing of the sealing baffle at the ventilation opening. This process does not require manual operation, reducing the labor intensity of operators. It solves the problem that in the existing equipment, when performing ventilation operations, operators need to manually open and close the sealing door at the ventilation opening outside the fermenter by referring to the temperature displayed on the screen. However, manual operation is limited by the operator's work status and time arrangement, which increases the labor intensity of the staff and makes it easy to forget to open or close the sealing door on time.

[0017] 2. In this utility model, by setting up a turning mechanism, through the first rotating rod, the second rotating rod, the third rotating rod and the stirring plate fixedly connected to their outer surfaces, the fertilizer in the fermentation tank can be turned in all directions and efficiently under the drive of the second servo motor. The cooperation between the first rotating wheel and the first synchronous belt, and the second rotating wheel and the second synchronous belt, enables each rotating rod to work together, ensuring that the fertilizer in the fermentation tank is fermented evenly and improving the fermentation quality of the compound microbial fertilizer. Attached Figure Description

[0018] Figure 1 A three-dimensional view of the main structure of the intelligent ventilation device for solid fermentation of compound microbial fertilizer is provided for this utility model. Figure 2 A three-dimensional view of the left side structure of the intelligent ventilation device for solid fermentation of compound microbial fertilizer is provided for this utility model. Figure 3 A three-dimensional view of the rear structure of the intelligent ventilation device for solid fermentation of compound microbial fertilizer is provided for this utility model. Figure 4 This invention presents a partial three-dimensional view of the feeding shielding mechanism in an intelligent ventilation device for solid fermentation of compound microbial fertilizer. Figure 5 This invention provides a three-dimensional cross-sectional view of the fermentation tank in an intelligent ventilation device for solid fermentation of compound microbial fertilizer.

[0019] Legend: 1. Fermentation tank; 2. Tilting mechanism; 201. First rotating rod; 202. Second rotating rod; 203. Third rotating rod; 204. Stirring plate; 205. First rotating wheel; 206. First synchronous belt; 207. Second rotating wheel; 208. Second synchronous belt; 209. Mounting frame; 210. Second servo motor; 3. Feed blocking mechanism; 301. Feed inlet; 302. Support frame; 303. Rotating shaft; 304. Baffle plate; 305. Arc-shaped limiting groove; 306. Limiting rod; 307. Circular plate; 308. Third servo motor; 4. Ventilation port; 5. Fixing frame; 6. Screw; 7. Fixing rod; 8. Lifting frame; 9. Sealing baffle; 10. First servo motor; 11. Temperature sensor; 12. PLC controller; 13. Discharge pipe; 14. Unloading valve. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides an intelligent ventilation device for solid fermentation of compound microbial fertilizer, including a fermentation tank 1. A turning mechanism 2 is provided inside the fermentation tank 1. A feeding shielding mechanism 3 is provided on the outer surface of the fermentation tank 1. A ventilation port 4 is provided on the outer surface of the fermentation tank 1. Two fixed frames 5 are fixedly connected to both sides of the ventilation port 4. A screw 6 is rotatably connected to the inner side of one fixed frame 5, and a fixed rod 7 is fixedly connected to the inner side of the other fixed frame 5. A lifting frame 8 is movably sleeved on the outer surface of the screw 6 and the fixed rod 7. A sealing baffle 9 is fixedly connected to the top of the lifting frame 8. A first servo motor 10 is fixedly installed on the top of one of the fixed frames 5. The output end of the first servo motor 10 movably passes through one of the fixed frames 5 and is fixedly connected to the smooth end of the screw 6. A temperature sensor 11 is provided on the inner surface of the fermentation tank 1. A PLC controller 12 is installed on the outer surface of the fermentation tank 1. The wiring terminal of the PLC controller 12 is connected to the wiring port inside the device.

[0023] The overall effect of Embodiment 1 is as follows: the temperature sensor 11 detects the temperature inside the fermenter 1 in real time and transmits the data to the PLC controller 12. The PLC controller 12 controls the first servo motor 10 to operate according to preset temperature parameters. The first servo motor 10 drives the screw 6 to rotate, and the fixed rod 7 limits the movement of the lifting frame 8, causing the lifting frame 8 to move up and down along the screw 6 and the fixed rod 7, thereby opening or closing the ventilation port 4 via the sealing baffle 9. The entire process requires no frequent manual intervention, reducing the tediousness of manual operation and effectively lowering the labor intensity of workers. It solves the problem that in existing equipment, during ventilation operations, operators need to manually open and close the sealing door based on the temperature displayed on the screen. However, manual operation is limited by the operator's work status and schedule, increasing the labor intensity of workers and easily leading to forgetting to open or close the sealing door on time.

[0024] Example 2: As Figure 1 - Figure 5 As shown, the turning mechanism 2 includes a first rotating rod 201, which is rotatably connected to the fermentation tank 1. A second rotating rod 202 and a third rotating rod 203 are rotatably connected inside the fermentation tank 1. A stirring plate 204 is fixedly connected to the outer surfaces of the first rotating rod 201, the second rotating rod 202, and the third rotating rod 203. The top ends of the first rotating rod 201, the second rotating rod 202, and the third rotating rod 203 extend through the fermentation tank 1. A first rotating wheel 205 is fixedly connected to the outer surfaces of the first rotating rod 201 and the second rotating rod 202. A first synchronous belt 206 is drive-connected to the outer surfaces of the two first rotating wheels 205. A second rotating wheel 207 is fixedly connected to the outer surfaces of the first rotating rod 201 and the third rotating rod 203. A second synchronous belt 208 is drive-connected to the outer surfaces of the two second rotating wheels 207. A mounting frame 209 is fixedly connected to the top of the fermentation tank 1. A second servo motor 21 is fixedly mounted on the top inner side of the mounting frame 209. 0. The output end of the second servo motor 210 is fixedly connected to the top end of the third rotating rod 203. The feeding shielding mechanism 3 includes a feeding port 301, which is located on the outer surface of the fermentation tank 1. A support frame 302 is fixedly connected to the top of the feeding port 301. A rotating shaft 303 is rotatably connected to the inner side of the support frame 302. A shielding plate 304 is fixedly sleeved on the outer surface of the rotating shaft 303. An arc-shaped limiting groove 305 is opened on the inner side of the support frame 302. A limiting rod 306 is slidably connected in the arc-shaped limiting groove 305. A circular plate 307 is fixedly sleeved on the outer surface of the rotating shaft 303. One end of the limiting rod 306 is fixedly connected to the circular plate 307. A third servo motor 308 is fixedly installed on one side of the support frame 302. The output end of the third servo motor 308 moves through the support frame 302 and is fixedly connected to the rotating shaft 303. A discharge pipe 13 is fixedly connected to the bottom of the fermentation tank 1. A discharge valve 14 is installed on the discharge pipe 13.

[0025] The overall effect of Embodiment 2 is that, by setting up a turning mechanism 2, the first rotating rod 201, the second rotating rod 202, and the third rotating rod 203, along with the stirring plate 204 fixedly connected to their outer surfaces, can turn the fertilizer in the fermentation tank 1 at different positions. The connection between the first rotating wheel 205 and the first synchronous belt 206, and the connection between the second rotating wheel 207 and the second synchronous belt 208, ensure the synchronous rotation of the first rotating rod 201, the second rotating rod 202, and the third rotating rod 203. Multiple rotating rods and stirring plates 204 work together, increasing the range and uniformity of turning compared to a single turning structure, so that the fertilizer can be fully turned in every corner of the fermentation tank 1, effectively avoiding problems such as material accumulation and insufficient local fermentation. The third rotating rod 203 is driven by the second servo motor 210, and the rotation of the first rotating rod 201 and the second rotating rod 202 can be indirectly controlled through the transmission action of the transmission belt. By setting up a feeding shielding mechanism 3, the cooperation between the rotating shaft 303 on the support frame 302 and the shield 304 enables the opening and closing of the feeding port 301. After feeding is completed, closing the shield 304 can prevent external dust, impurities and other foreign objects from entering the fermentation tank 1, ensuring a clean fermentation environment inside the fermentation tank 1, avoiding adverse effects of external foreign objects on the fermentation process, and ensuring the purity and quality of microbial fermentation. The cooperation between the arc-shaped limiting groove 305, the limiting rod 306 and the circular plate 307 provides a limiting function for the rotation of the rotating shaft 303. When the third servo motor 308 drives the rotating shaft 303 to rotate, the limiting rod 306 slides in the arc-shaped limiting groove 305, limiting the opening and closing range of the shield 304, ensuring that the shield 304 is accurately positioned each time it is opened and closed. The discharge pipe 13 facilitates the discharge of the fermented fertilizer, and the discharge is controlled by the discharge valve 14, making it easy to transfer the fertilizer to subsequent processing or packaging processes.

[0026] Working principle: When fertilizer needs to be added to fermentation tank 1, the third servo motor 308 is started by the PLC controller 12. The output of the third servo motor 308 drives the rotating shaft 303 to rotate, thereby opening the cover 304 fixed on the outer surface of the rotating shaft 303, exposing the feed inlet 301, which facilitates the smooth entry of fertilizer into fermentation tank 1. After feeding is completed, the third servo motor 308 is started in reverse by the PLC controller 12, driving the rotating shaft 303 to rotate in the opposite direction, so that the cover 304 returns to its original position and closes the feed inlet. 301. Simultaneously, temperature sensor 11 monitors the temperature changes inside fermenter 1 in real time. If the temperature inside fermenter 1 exceeds the preset upper temperature limit, temperature sensor 11 sends a signal to PLC controller 12. Upon receiving the signal, PLC controller 12 starts the first servo motor 10. The output shaft of the first servo motor 10 drives the screw 6 to rotate. Since the fixed rod 7 limits the lifting frame 8, the lifting frame 8 moves upward along the screw 6 and fixed rod 7, thereby driving the top sealing baffle 9 to move upward, opening the vent 4 to achieve ventilation and heat dissipation, and reducing the temperature inside fermenter 1. Conversely, when the temperature is below the preset lower temperature limit, PLC controller 12 starts the first servo motor 10 to reverse, causing the lifting frame 8 and sealing baffle 9 to move downward, closing the vent 4, reducing heat loss, and automatically maintaining the temperature inside fermenter 1 within a suitable range, achieving intelligent operation. When it is necessary to turn the fertilizer inside fermenter 1, PLC controller 12 starts the second servo motor 210, whose output drives the third rotating rod 203 to rotate. Since the first rotating rod 201 and the third rotating rod 203... The second rotating rod 202 is connected to the first rotating rod 201 via the second rotating wheel 207 and the second synchronous belt 208. The second rotating rod 202 is connected to the first rotating rod 201 via the first rotating wheel 205 and the first synchronous belt 206, so that the first rotating rod 201, the second rotating rod 202 and the third rotating rod 203 can rotate synchronously, thereby driving the stirring plate 204 to rotate. This stirs the fertilizer at different positions in the fermentation tank 1, so that the fertilizer can be fully stirred in every corner of the fermentation tank 1, effectively avoiding problems such as material accumulation and insufficient local fermentation, promoting full contact between microorganisms and fertilizer, and accelerating the fermentation process.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A smart ventilation device for solid-state fermentation of compound microbial fertilizer, comprising a fermentation tank (1), characterized in that: The fermentation tank (1) is equipped with a turning mechanism (2), the fermentation tank (1) is equipped with a feeding shielding mechanism (3) on its outer surface, the fermentation tank (1) is equipped with a vent (4) on its outer surface, and two fixed frames (5) are fixedly connected to both sides of the vent (4). A screw (6) is rotatably connected to the inner side of one of the fixed frames (5), and a fixed rod (7) is fixedly connected to the inner side of the other fixed frame (5). A lifting frame (8) is movably sleeved on the outer surface of the screw (6) and the fixed rod (7). A sealing baffle (9) is fixedly connected to the top of the lifting frame (8). A first servo motor (10) is fixedly installed on the top of one of the fixed frames (5). The output end of the first servo motor (10) movably passes through one of the fixed frames (5) and is fixedly connected to the smooth end of the screw (6). A temperature sensor (11) is provided on the inner surface of the fermentation tank (1). A PLC controller (12) is installed on the outer surface of the fermentation tank (1). The wiring terminal of the PLC controller (12) is connected to the wiring port inside the equipment.

2. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 1, characterized in that: The turning mechanism (2) includes a first rotating rod (201), which is rotatably connected to the fermentation tank (1). A second rotating rod (202) and a third rotating rod (203) are rotatably connected inside the fermentation tank (1). A stirring plate (204) is fixedly connected to the outer surfaces of the first rotating rod (201), the second rotating rod (202) and the third rotating rod (203).

3. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 2, characterized in that: The top ends of the first rotating rod (201), the second rotating rod (202) and the third rotating rod (203) are movable through the fermentation tank (1). The outer surfaces of the first rotating rod (201) and the second rotating rod (202) are fixedly connected with the first rotating wheel (205), and the outer surfaces of the two first rotating wheels (205) are connected with the first synchronous belt (206).

4. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 2, characterized in that: The outer surfaces of the first rotating rod (201) and the third rotating rod (203) are fixedly connected with second rotating wheels (207), and the outer surfaces of the two second rotating wheels (207) are connected by a second synchronous belt (208).

5. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 2, characterized in that: The top of the fermenter (1) is fixedly connected to a mounting bracket (209), and a second servo motor (210) is fixedly installed on the top inner side of the mounting bracket (209). The output end of the second servo motor (210) is fixedly connected to the top end of the third rotating rod (203).

6. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 1, characterized in that: The feeding shielding mechanism (3) includes a feeding port (301), which is located on the outer surface of the fermentation tank (1), and a support frame (302) is fixedly connected to the top of the feeding port (301).

7. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 6, characterized in that: The inner side of the support frame (302) is rotatably connected to a rotating shaft (303), and a cover plate (304) is fixedly sleeved on the outer surface of the rotating shaft (303).

8. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 7, characterized in that: The support frame (302) has an arc-shaped limiting groove (305) on its inner side. A limiting rod (306) is slidably connected in the arc-shaped limiting groove (305). A circular plate (307) is fixedly sleeved on the outer surface of the rotating shaft (303). One end of the limiting rod (306) is fixedly connected to the circular plate (307).

9. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 6, characterized in that: A third servo motor (308) is fixedly installed on one side of the support frame (302). The output end of the third servo motor (308) movably passes through the support frame (302) and is fixedly connected to the rotating shaft (303).

10. The intelligent ventilation equipment for solid-state fermentation of compound microbial fertilizer according to claim 1, characterized in that: The bottom of the fermentation tank (1) is fixedly connected to a discharge pipe (13), and a discharge valve (14) is installed on the discharge pipe (13).