Fermentation tank for producing organic fertilizer

By introducing cleaning and depressurization mechanisms into the fermentation tank, the problems of inconvenient carbon dioxide discharge and organic fertilizer adhesion were solved, thereby improving the safety and efficiency of internal wall cleaning and gas treatment.

CN223823518UActive Publication Date: 2026-01-23TIANJIN FURUIFENG BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520323885.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-23
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

The existing organic fertilizer production fermentation tanks have difficulties in removing carbon dioxide, which leads to safety hazards. In addition, organic fertilizer tends to adhere to the inner wall of the tank, making cleaning difficult.

Method used

A fermenter with a cleaning mechanism and a pressure relief mechanism was designed. The cleaning mechanism uses a motor-driven scraper to clean the inner wall, while the pressure relief mechanism uses a screw and a screw barrel to regulate the air pressure and prevent air backflow and odor leakage.

Benefits of technology

It achieves efficient cleaning of the fermenter's inner wall and safe gas emission, avoiding safety hazards and odor pollution.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223823518U_ABST
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Abstract

The utility model belongs to the field of fermentation tanks, and particularly relates to a fermentation tank for organic fertilizer production, which comprises a fermentation tank, the upper end of the fermentation tank is connected with a tank cover through screws, a motor is fixedly mounted in the middle of the upper end of the tank cover, and a rotating shaft of the motor penetrates through the tank cover and is rotatably connected with the tank cover. A cleaning mechanism is arranged on a rotating shaft of the motor, an absorption tank is fixedly connected to the upper end of the tank cover, a pressure relief mechanism is arranged on the absorption tank, and supporting legs are fixedly connected to the lower end of the fermentation tank. According to the utility model, the screw rod and the screw cylinder are rotated to do threaded motion, so that the sealing plate is elastically pressed down by the pressure spring, the gas discharge pressure is changed, the air pressure in the fermentation tank can be adjusted, air is prevented from being reversely injected into the fermentation tank, and odor generated by fermentation is prevented from entering the air through absorption of liquid in the absorption tank.
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Description

Technical Field

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

[0002] Utility model patent CN213708174U discloses a fermentation tank for organic fertilizer production, including a tank body. A first support plate is rotatably connected to the left side of the tank body, and a second support plate is provided on the right side of the tank body. A first horizontal plate is welded to the right side of the second support plate. A first motor is bolted to the top of the first horizontal plate, and a gear is engaged with the output shaft of the first motor. A chain meshes with the surface of the gear. This utility model, through the arrangement of the tank body, first support plate, second support plate, first horizontal plate, first motor, gear, chain, gearbox, rotating rod, fan, sealing cover, through hole, and flipping structure, enables the fermentation tank for organic fertilizer production to have the advantages of increasing the contact area between organic fertilizer and air and rapid discharge, solving the problems of limited contact area with air and general discharge speed in existing fermentation tanks for organic fertilizer production.

[0003] However, when the device is in use, the carbon dioxide produced by fermentation inside the device is not easy to be discharged, which can easily cause safety hazards. At the same time, organic fertilizer will stick to the inner wall of the tank, making it inconvenient to clean. Utility Model Content

[0004] The purpose of this invention is to provide a fermentation tank for organic fertilizer production, which solves the problems of carbon dioxide generated during fermentation inside the device being difficult to expel, posing a safety hazard, and organic fertilizer adhering to the inner wall of the tank, making cleaning inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fermentation tank for organic fertilizer production, comprising a fermentation tank, a tank cover connected to the upper end of the fermentation tank by screws, a motor fixedly installed in the middle of the upper end of the tank cover, the rotating shaft of the motor passing through the tank cover and rotatably connected to the tank cover, a cleaning mechanism provided on the rotating shaft of the motor, an absorption tank fixedly connected to the upper end of the tank cover, a pressure relief mechanism provided on the absorption tank, and a support foot fixedly connected to the lower end of the fermentation tank.

[0006] Preferably, the cleaning mechanism includes a square rod, with the lower end of the motor shaft fixedly connected to the square rod. A sliding plate is slidably connected to the outer side of the square rod, and a sliding rod is fixedly connected to the surface of the sliding plate. A scraper is fixedly connected to the end of the sliding rod, and the scraper is slidably connected to the fermentation tank. An stirring blade is fixedly connected inside the scraper. A sliding plate is slidably connected to the outer side of the square rod, and a spring is provided on the outer side of the square rod. A cylinder is fixedly installed at the upper end of the tank lid, with the cylinder rod passing through the tank lid and slidably connected to it. A limit pin is fixedly connected to the lower end of the cylinder rod, and the limit pin is slidably connected to the sliding plate. The motor drives the square rod to rotate, which in turn causes the sliding plate to rotate, causing the scraper to scrape and clean the inner wall of the fermentation tank. Simultaneously, the cylinder drives the sliding plate to move, causing the scraper to move up and down to scrape the inner wall of the fermentation tank, resulting in a more thorough cleaning of the inner wall of the fermentation tank.

[0007] Preferably, a hanger rod is slidably connected inside the slide plate, and the hanger rod is fixedly connected to the slide plate. The hanger rod guides the movement of the slide plate.

[0008] Preferably, one end of the spring is fixedly connected to the slide plate, and the other end of the spring is fixedly connected to the sliding plate. By setting the spring, the slide plate is elastically pressed down.

[0009] Preferably, the pressure relief mechanism includes a gas outlet pipe, which is fixedly connected to the inside of the absorption tank. The gas outlet pipe is fixedly connected to the tank cover. A screw is installed inside the gas outlet pipe via a bearing. A screw cylinder is threadedly connected to the outside of the screw. A sliding pin is fixedly connected to the surface of the screw cylinder, and the sliding pin is slidably connected to the gas outlet pipe. A sliding cylinder is slidably connected to the outside of the screw cylinder. A sealing plate is fixedly connected to the lower end of the sliding cylinder. The sealing plate is slidably connected to the gas outlet pipe. A compression spring is installed inside the sliding cylinder. A diverter pipe is fixedly connected to the inside of the gas outlet pipe. By rotating the screw and screw cylinder to perform threaded movement, the compression spring elastically presses down on the sealing plate, thereby changing the gas discharge pressure. This can adjust the gas pressure inside the fermenter and prevent air from flowing back into the fermenter. Furthermore, the liquid in the absorption tank absorbs the gas, preventing the odor produced during fermentation from entering the air.

[0010] Preferably, one end of the compression spring is fixedly connected to the screw cylinder, and the other end of the compression spring is fixedly connected to the sealing plate. By setting the compression spring, the sealing plate is elastically pressed down.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a motor to drive a square rod to rotate, which in turn causes the sliding plate to rotate, thereby causing the scraper to scrape and clean the inner wall of the fermentation tank. At the same time, a cylinder drives a sliding plate to move, which in turn causes the scraper to move up and down to scrape the inner wall of the fermentation tank, making the inner wall of the fermentation tank cleaner.

[0013] 2. This utility model uses the rotation of the screw and the screw barrel to make a spiral motion, which causes the compression spring to elastically press down the sealing plate, thereby changing the gas discharge pressure. This can adjust the gas pressure inside the fermentation tank and prevent air from flowing back into the fermentation tank. Furthermore, the liquid in the absorption tank absorbs the gas, preventing the odor produced during fermentation from entering the air. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A sectional view;

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0017] Figure 4 This utility model Figure 1 A cross-sectional view of the absorption tank.

[0018] In the diagram: 1. Fermentation tank; 2. Tank lid; 3. Motor; 4. Cleaning mechanism; 5. Absorption tank; 6. Pressure relief mechanism; 7. Support leg; 41. Square rod; 42. Slide plate; 43. Slide rod; 44. Scraper; 45. Stirring blade; 46. Slide plate; 47. Hanging rod; 48. Spring; 49. Cylinder; 410. Limit pin; 61. Gas outlet pipe; 62. Screw; 63. Screw barrel; 64. Sliding pin; 65. Slide barrel; 66. Sealing plate; 67. Compression spring; 68. Diverter pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2 A fermentation tank for organic fertilizer production includes a fermentation tank 1, a tank cover 2 connected to the upper end of the fermentation tank 1 by screws, a motor 3 fixedly installed in the middle of the upper end of the tank cover 2, the rotating shaft of the motor 3 passing through the tank cover 2 and rotatably connected to the tank cover 2, a cleaning mechanism 4 provided on the rotating shaft of the motor 3, an absorption tank 5 fixedly connected to the upper end of the tank cover 2, a pressure relief mechanism 6 provided on the absorption tank 5, and a support leg 7 fixedly connected to the lower end of the fermentation tank 1.

[0021] Please see Figure 2 , Figure 3The cleaning mechanism 4 includes a square rod 41. The lower end of the shaft of the motor 3 is fixedly connected to the square rod 41. A slide plate 42 is slidably connected to the outer side of the square rod 41. A slide rod 43 is fixedly connected to the surface of the slide plate 42. A scraper 44 is fixedly connected to the end of the slide rod 43. The scraper 44 is slidably connected to the fermentation tank 1. An agitator blade 45 is fixedly connected to the inside of the scraper 44. A sliding plate 46 is slidably connected to the outer side of the square rod 41. A hanging rod 47 is slidably connected to the inside of the sliding plate 46. The hanging rod 47 is fixedly connected to the slide plate 42. The movement of the slide plate 42 is guided by the hanging rod 47. A spring 48 is provided on the outer side of the square rod 41. One end of the spring 48 is fixedly connected to the slide plate 42. The other end of the spring 48 is fixedly connected to the slide plate 46. By setting the spring 48, the slide plate 42 is elastically pressed down. The upper end of the can lid 2 is fixedly installed with a cylinder 49. The cylinder rod of the cylinder 49 passes through the can lid 2 and is slidably connected to the can lid 2. The lower end of the cylinder rod of the cylinder 49 is fixedly connected to a limit pin 410. The limit pin 410 is slidably connected to the slide plate 46. The square rod 41 is driven to rotate by the motor 3, which in turn causes the slide plate 42 to rotate, which in turn causes the scraper 44 to scrape and clean the inner wall of the fermentation tank 1. At the same time, the cylinder 49 drives the slide plate 46 to move, which in turn causes the scraper 44 to move up and down to scrape the inner wall of the fermentation tank 1, making the inner wall of the fermentation tank 1 cleaner.

[0022] Please see Figure 1 , Figure 4 The pressure relief mechanism 6 includes an outlet pipe 61. The outlet pipe 61 is fixedly connected to the inside of the absorption tank 5. The outlet pipe 61 is fixedly connected to the tank cover 2. A screw 62 is mounted inside the outlet pipe 61 via a bearing. A screw cylinder 63 is threadedly connected to the outside of the screw 62. A sliding pin 64 is fixedly connected to the surface of the screw cylinder 63, and the sliding pin 64 is slidably connected to the outlet pipe 61. A sliding cylinder 65 is slidably connected to the outside of the screw cylinder 63. A sealing plate 66 is fixedly connected to the lower end of the sliding cylinder 65, and the sealing plate 66 is slidably connected to the outlet pipe 61. A compression spring 67 is installed inside the sliding cylinder 65. One end of the spring 67 is fixedly connected to the screw barrel 63, and the other end of the compression spring 67 is fixedly connected to the sealing plate 66. By setting the compression spring 67, the sealing plate 66 is elastically pressed down. The gas outlet pipe 61 is fixedly connected to the diverter pipe 68. By rotating the screw 62 and the screw barrel 63 to make threaded movements, the compression spring 67 elastically presses down the sealing plate 66, thereby changing the gas discharge pressure. This can adjust the gas pressure in the fermenter 1 and prevent air from flowing back into the fermenter 1. The gas is also absorbed by the liquid in the absorption tank 5 to prevent the odor produced by fermentation from entering the air.

[0023] The specific implementation process of this utility model is as follows: During use, open the can lid 2 and pour the organic fertilizer into the fermentation tank 1 for fermentation. The gas produced during fermentation rises to the sealing plate 66, allowing the gas to enter the absorption tank 5 through the diversion pipe 68 for absorption. By rotating the screw 62 and the screw cylinder 63 in a spiral motion, the compression spring 67 elastically presses down on the sealing plate 66, thereby changing the gas discharge pressure. This allows adjustment of the gas pressure inside the fermentation tank 1 and prevents air from backflowing into the fermentation tank 1. The gas is then absorbed by the liquid in the absorption tank 5. To prevent the odor produced during fermentation from entering the air, after fermentation is complete, motor 3 is started. Motor 3 drives square rod 41 to rotate, square rod 41 drives slide plate 42 to rotate, slide plate 42 drives slide rod 43 to rotate, slide rod 43 drives scraper 44 to rotate, scraper 44 scrapes and cleans the inner wall of fermentation tank 1. At the same time, cylinder 49 is started, cylinder 49 drives limit pin 410 to move, limit pin 410 drives slide plate 46 to move, which in turn causes scraper 44 to move up and down to scrape the inner wall of fermentation tank 1, making the inner wall of fermentation tank 1 cleaner.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fermentation tank for organic fertilizer production, comprising a fermentation tank (1), characterized in that: The upper end of the fermentation tank (1) is connected to a tank cover (2) by screws. A motor (3) is fixedly installed in the middle of the upper end of the tank cover (2). The shaft of the motor (3) passes through the tank cover (2) and is rotatably connected to the tank cover (2). A cleaning mechanism (4) is provided on the shaft of the motor (3). An absorption tank (5) is fixedly connected to the upper end of the tank cover (2). A pressure relief mechanism (6) is provided on the absorption tank (5). A support leg (7) is fixedly connected to the lower end of the fermentation tank (1).

2. A fermentation tank for organic fertilizer production according to claim 1, characterized in that: The cleaning mechanism (4) includes a square rod (41), the lower end of the shaft of the motor (3) is fixedly connected to the square rod (41), the outer side of the square rod (41) is slidably connected to a slide plate (42), the surface of the slide plate (42) is fixedly connected to a slide rod (43), the end of the slide rod (43) is fixedly connected to a scraper (44), the scraper (44) is slidably connected to the fermentation tank (1), the inside of the scraper (44) is fixedly connected to a stirring blade (45), the outer side of the square rod (41) is slidably connected to a sliding plate (46), the outer side of the square rod (41) is provided with a spring (48), the upper end of the tank cover (2) is fixedly installed with a cylinder (49), the cylinder rod of the cylinder (49) passes through the tank cover (2) and is slidably connected to the tank cover (2), the lower end of the cylinder rod of the cylinder (49) is fixedly connected to a limit pin (410), the limit pin (410) is slidably connected to the sliding plate (46).

3. A fermentation tank for organic fertilizer production according to claim 2, characterized in that: The slide plate (46) is internally slidably connected to a hanger (47), and the hanger (47) and the slide plate (42) are fixedly connected.

4. A fermentation tank for organic fertilizer production according to claim 2, characterized in that: One end of the spring (48) is fixedly connected to the slide plate (42), and the other end of the spring (48) is fixedly connected to the slide plate (46).

5. A fermentation tank for organic fertilizer production according to claim 1, characterized in that: The pressure relief mechanism (6) includes an outlet pipe (61). The outlet pipe (61) is fixedly connected inside the absorption tank (5). The outlet pipe (61) is fixedly connected to the tank cover (2). A screw (62) is installed inside the outlet pipe (61) through a bearing. A screw cylinder (63) is threadedly connected to the outside of the screw (62). A sliding pin (64) is fixedly connected to the surface of the screw cylinder (63). The sliding pin (64) is slidably connected to the outlet pipe (61). A sliding cylinder (65) is slidably connected to the outside of the screw cylinder (63). A sealing plate (66) is fixedly connected to the lower end of the sliding cylinder (65). The sealing plate (66) is slidably connected to the outlet pipe (61). A compression spring (67) is provided inside the sliding cylinder (65). A diverter pipe (68) is fixedly connected inside the outlet pipe (61).

6. A fermentation tank for organic fertilizer production according to claim 5, characterized in that: One end of the compression spring (67) is fixedly connected to the screw cylinder (63), and the other end of the compression spring (67) is fixedly connected to the sealing plate (66).

Citation Information

Patent Citations

  • Fermentation tank for producing organic fertilizer

    CN213708174U