Multi-stage fermentation tank for bio-organic fertilizer

Abstract

The utility model relates to a multi-stage fermentation tank for bio-organic fertilizer, which comprises a tank body, a sealing cover and a pumping mechanism, the top of the tank body is provided with the sealing cover through a mounting piece, the surface of the tank body is provided with a feed valve pipe and a discharge valve pipe, and the bottom of the sealing cover is provided with the pumping mechanism for pumping materials at the bottom in the tank body to the upper part in the tank body. The pumping mechanism comprises rod bodies, spiral conveying paddles, a conveying pipe and a connecting piece, the two rod bodies are rotationally installed on the inner wall of the sealing cover, the spiral conveying paddles are welded to the surfaces of the two rod bodies, a driving rod is driven by a starting motor to rotate, a driving wheel is fixedly installed on the surface of the driving rod, and driven wheels are fixedly installed on the surfaces of the two rod bodies. The driving wheel rotates to drive the toothed belt, so that the two driven wheels are controlled to rotate together, the two rod bodies are controlled to rotate, rotation adjustment of the spiral conveying paddle is achieved, the spiral conveying paddle is located in the conveying pipe to rotate, materials at the bottom in the fermentation tank are pumped to the upper portion and make full contact with air, and the oxygen utilization rate is increased.

Description

Technical Field

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

[0002] The grading principle of multi-stage fermentation tanks can be divided into three stages of fermentation: the first stage is high-temperature rapid decomposition, the second stage is medium-temperature stable fermentation, and the third stage is post-ripening and aging. Small fermentation tanks are mostly used for fermentation in a single tank. In the existing technology, during the operation of bio-organic fertilizer fermentation tanks, there is a common problem that the bottom material does not have enough contact with air, which leads to a decrease in fermentation efficiency. At the same time, due to the heat generated at the bottom of the fermentation tank, the fertilizer at the top and bottom of the tank is not heated evenly.

[0003] For example, the authorized patent document with application number CN202123158582.0 discloses a fermentation tank for multi-stage fertilizer production, which includes a body, a sleeve fitted to the outer wall of the body, a base at the bottom of the body, a dust cover at the top of the body, elastic ropes connected to both sides of the outer wall of the dust cover, a retractor with elastic ropes fitted to the outer wall of the sleeve inside the sleeve, a sleeve rod fitted to one end of the elastic rope, an auxiliary gear fitted to one end of the sleeve rod, a main gear above the auxiliary gear, and a rotating rod fitted to one end of the main gear inside the body.

[0004] The aforementioned patent has the problem of not being able to pump the material from the bottom of the tank to the top, resulting in insufficient contact between the bottom material and the air. Therefore, we need to provide a multi-stage fermentation tank for bio-organic fertilizer. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage fermentation tank for bio-organic fertilizer, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage fermentation tank for bio-organic fertilizer, comprising:

[0007] The tank body, the cover, and the pumping mechanism are provided. The top of the tank body is provided with a cover by an installation component. The surface of the tank body is provided with an inlet valve pipe and a outlet valve pipe. The bottom of the cover is provided with a pumping mechanism for pumping the material at the bottom of the tank body to the upper part of the tank body.

[0008] The pumping mechanism includes rods, a spiral conveyor, a conveying pipe, and a connector. Two rods are rotatably mounted on the inner wall of the cover. Spiral conveyors are welded to the surfaces of both rods, and conveying pipes are provided on the surfaces of the two spiral conveyors. The tops of the two conveying pipes are installed at the bottom of the cover via connectors.

[0009] Preferably, the connector includes a fixing ring, a plug, a mounting base, a limiting bolt, and a threaded hole. The fixing ring is fixedly installed on the top of the conveying pipe. Plugs are provided on both sides of the top of the fixing ring. Mounting bases are snapped onto the surfaces of the two plugs, and the tops of the two mounting bases are located at the bottom of the cover. The mounting base has a through hole for the limiting bolt to pass through, and the plug has a threaded hole for threaded installation with the limiting bolt.

[0010] Preferably, it also includes a reinforcement component for stabilizing the rotation of the rod body. The reinforcement component includes a reinforcing ring and a reinforcing rod. The reinforcing ring is rotatably mounted on the bottom of the surface of the rod body. Reinforcing rods are integrally machined on both sides of the reinforcing ring, and the lower ends of the two reinforcing rods are fixed to the bottom of the inner wall of the tank.

[0011] Preferably, it also includes a drive component for synchronous rotation of the two rods. The drive component includes a driven wheel, a driving wheel, a drive rod, a toothed belt, and a motor. The top of each of the two rods passes through the top of the cover and is provided with a driven wheel. The top of the cover is provided with a motor by a mounting bracket. The output end of the motor is provided with a driving wheel by a drive rod, and the driving wheel is connected to the two driven wheels by a toothed belt.

[0012] Preferably, the drive rod surface is provided with a first gear, and a stirring paddle for auxiliary stirring of the tank is rotatably installed inside the cover, and a second gear that meshes with the first gear is fixedly installed on the surface of the stirring paddle.

[0013] Preferably, the top and bottom of the conveying pipe are provided with flow channels to facilitate material flow.

[0014] Preferably, the bottom of the tank is provided with a heating plate, and the bottom of the heating plate is provided with several support legs.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention incorporates a pumping mechanism within the tank to lift the material from the bottom to the top, ensuring full contact with air and improving oxygen utilization. This accelerates the decomposition of organic matter, shortens the fermentation cycle, and prevents the bottom material from producing harmful gases such as hydrogen sulfide and methane due to oxygen deficiency, thus improving fertilizer quality. Simultaneously, it allows for dynamic mixing of materials within the tank, reducing temperature differences, ensuring uniform heating, and enhancing fermentation stability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a perspective view of the reinforcement component of this utility model;

[0019] Figure 3 This is a perspective view of the driving component of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural view of the present invention;

[0021] Figure 5 This is an exploded perspective view of the connector of this utility model.

[0022] In the diagram: 1. Tank body; 2. Cover; 3. Pumping mechanism; 31. Rod; 32. Spiral conveyor; 33. Conveying pipe; 34. Connector; 341. Fixing ring; 342. Insert block; 343. Mounting base; 344. Limit bolt; 345. Threaded hole; 4. Reinforcing component; 41. Reinforcing ring; 42. Reinforcing rod; 5. Driving component; 51. Driven wheel; 52. Driving wheel; 53. Driving rod; 54. Toothed belt; 55. Motor; 6. First gear; 7. Second gear; 8. Flow channel; 9. Heating plate; 10. Agitator. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a multi-stage fermentation tank for bio-organic fertilizer, comprising:

[0025] Tank 1, cover 2 and pumping mechanism 3. The top of the tank 1 is provided with cover 2 through the mounting parts. The surface of the tank 1 is provided with feed valve pipe and discharge valve pipe. The bottom of the cover 2 is provided with pumping mechanism 3 for pumping the material at the bottom of the tank 1 to the upper part of the tank 1.

[0026] The cover 2 is fixed to the top of the tank 1 by an installation component. The installation component includes four screws fixed to the top of the tank 1, each screw having a nut threaded onto its surface. The cover 2 is slidably mounted on the surface of the four screws, which are relatively long and serve as auxiliary guides for installation. The four screws are not evenly distributed on the top of the tank 1; two screws are located on one side of the top of the tank 1. A pumping mechanism 3 is located inside the cover 2 to facilitate the separation of the tank 1 from the cover 2, making it easier to clean the inside of the tank 1 and the pumping mechanism 3. The pumping mechanism 3 can pump the material from the bottom of the fermenter to the top, allowing it to fully contact the air, improving oxygen utilization, thereby accelerating the decomposition of organic matter and shortening the fermentation cycle. The feed valve pipe is located on the top side of one side of the tank 1, while the discharge valve pipe is located on the bottom side of one side.

[0027] The pumping mechanism 3 includes a rod 31, a spiral conveyor 32, a conveying pipe 33, and a connector 34. Two rods 31 are rotatably installed on the inner wall of the cover 2. Spiral conveyors 32 are welded to the surface of both rods 31, and conveying pipes 33 are provided on the surface of both spiral conveyors 32. The tops of both conveying pipes 33 are installed at the bottom of the cover 2 through the connector 34.

[0028] Specifically, both rods 31 are rotatably installed inside the cover 2, and can only rotate without height adjustment. The surface of the rods 31 is integrally machined with a spiral conveyor 32, and a conveying pipe 33 is sleeved on the outer surface of the spiral conveyor. When the spiral conveyor 32 rotates inside the conveying pipe 33, it can draw the material at the bottom of the conveying pipe 33 to the top for discharge. A connector 34 is provided to limit the conveying pipe 33 to the bottom of the cover 2. The connector 34 is used for the installation and removal of the conveying pipe 33.

[0029] The connector 34 includes a retaining ring 341, a plug 342, a mounting base 343, a limiting bolt 344, and a threaded hole 345. The retaining ring 341 is fixedly installed on the top of the conveying pipe 33. The plugs 342 are provided on both sides of the top of the retaining ring 341. The mounting base 343 is snapped onto the surface of the two plugs 342. The top of the two mounting bases 343 is located at the bottom of the cover 2. The mounting base 343 has a through hole for the limiting bolt 344 to pass through. The surface of the plug 342 has a threaded hole 345 for threaded installation with the limiting bolt 344.

[0030] Furthermore, the fixing ring 341 is welded to the top of the surface of the conveying pipe 33, and the two sides of the top of the fixing ring 341 are welded with inserts 342. The inserts 342 are adapted to the slot at the bottom of the mounting base 343. When the top of the fixing ring 341 is in contact with the bottom of the mounting base 343, the through hole in the mounting base 343 is aligned with the threaded hole 345, which allows the limit bolt 344 to pass through the through hole in the mounting base 343 and be threaded into the threaded hole 345, thereby realizing the installation of the conveying pipe 33. The purpose is to facilitate the removal of the conveying pipe 33 for cleaning and to expose the spiral conveying paddle 32 for easy cleaning.

[0031] It also includes a reinforcement member 4 for stabilizing the rotation of the rod 31. The reinforcement member 4 includes a reinforcing ring 41 and a reinforcing rod 42. The reinforcing ring 41 is rotatably installed on the bottom of the surface of the rod 31. The two sides of the reinforcing ring 41 are integrally machined with reinforcing rods 42, and the lower ends of the two reinforcing rods 42 are fixed to the bottom of the inner wall of the tank 1.

[0032] The reinforcing ring 41 is movably sleeved with the surface of the rod 31. When the cover 2 is installed on the top of the tank 1, its rod 31 can be inserted into the reinforcing ring 41, which enhances the stability of the rotation of the rod 31. Both reinforcing rods 42 are welded to the bottom of the inner wall of the tank 1.

[0033] It also includes a drive unit 5 for the synchronous rotation of the two rods 31. The drive unit 5 includes a driven wheel 51, a driving wheel 52, a drive rod 53, a toothed belt 54 and a motor 55. The top of each of the two rods 31 passes through the top of the cover 2 and is provided with a driven wheel 51. The top of the cover 2 is provided with a motor 55 by a mounting bracket. The output end of the motor 55 is provided with a driving wheel 52 by a drive rod 53, and the driving wheel 52 is connected to the two driven wheels 51 by a toothed belt 54.

[0034] It is worth noting that the drive component 5 is set to drive the two rods 31 synchronously. The start motor 55 drives the drive rod 53 to rotate. The drive wheel 52 is fixedly installed on the surface of the drive rod 53, and the driven wheel 51 is fixedly installed on the surface of both rods 31. As the drive wheel 52 rotates, it drives the toothed belt 54, thereby controlling the two driven wheels 51 to rotate together, controlling the rotation of the two rods 31, and realizing the rotation adjustment of the screw conveyor 32.

[0035] The drive rod 53 is provided with a first gear 6, and a stirring paddle for auxiliary stirring inside the tank 1 is rotatably installed inside the cover 2. A second gear 7 that meshes with the first gear 6 is fixedly installed on the surface of the stirring paddle.

[0036] It should be noted that the first gear 6 is fixedly mounted on the surface of the drive rod 53 at its shaft center, and the rod part on the surface of the stirring paddle 10 is rotatably mounted inside the cover 2. The rod part on the surface of the stirring paddle 10 is fixedly mounted with the second gear 7. The first gear 6 and the second gear 7 on the surface of the drive rod 53 mesh with each other. As the output rod rotates, it can drive the first gear 6 and the second gear 7 to rotate, thereby controlling the stirring paddle 10 to rotate in the tank 1, which plays an auxiliary role in stirring the material. The second gear 7 is larger than the first gear 6, so that the rotation speed of the stirring paddle 10 is slower than the rotation speed of the two spiral conveyor paddles 32, and the stirring paddle 10 does not need to rotate very fast.

[0037] The top and bottom of the conveying pipe 33 are provided with flow channels 8 to facilitate the flow of materials;

[0038] Among them, the flow channel 8 makes it easier for the material in the conveying pipe 33 to be pushed by the screw conveyor 32, avoiding blockage of the pipe cavity caused by accumulation, and achieving the purpose of smooth material in and out. The top flow channel 8 facilitates the rapid discharge of the lifted material to the upper part of the conveying pipe 33, avoiding stagnation. The bottom flow channel 8 makes it easier for the material at the bottom of the tank 1 to be sucked into the conveying pipe 33, shortening the cycle.

[0039] The bottom of the tank body 1 is provided with a heating plate 9, and the bottom of the heating plate 9 is provided with several support legs;

[0040] Specifically, the top of the heating plate 9 is the heating surface, and the top of the heating plate 9 is in close contact with the bottom of the tank 1. The material is heated evenly through heat conduction to ensure the optimal temperature range required for fermentation, accelerate microbial activity, and shorten the fermentation cycle. Compared with side wall heating, bottom heating is more in line with the principle of hot air rising. Combined with the material circulation of the pumping mechanism 3, it further reduces temperature stratification.

[0041] It should be added that parameters are adjusted in stages within tank 1: multi-stage fermentation is achieved by adjusting the temperature and stirring frequency in stages.

[0042] First 48 hours: High temperature mode (65℃).

[0043] For the next 72 hours: medium temperature mode (50℃).

[0044] Last 5-7 days: Static aging mode (room temperature).

[0045] Meanwhile, the motor 55 drive system, heating plate 9 temperature control system, and PLC automation control involved in this application are all implemented using existing mature technologies and are conventional technical means in this field. Therefore, their specific circuit connections, control logic, and working processes will not be described in detail.

[0046] This device uses a starting motor 55 to drive a drive rod 53 to rotate. A drive wheel 52 is fixedly mounted on the surface of the drive rod 53, and driven wheels 51 are fixedly mounted on the surfaces of both rods 31. As the drive wheel 52 rotates, it drives a toothed belt 54, thereby controlling the rotation of the two driven wheels 51 together. This control of the two rods 31 adjusts the rotation of the screw conveyor 32. The screw conveyor 32 rotates within the conveying pipe 33, drawing material from the bottom of the fermenter to the top, ensuring sufficient contact with air, improving oxygen utilization, and accelerating the decomposition of organic matter. Simultaneously, a fixing ring 341 is welded... Insert blocks 342 are welded to the top of the surface of the conveying pipe 33 and on both sides of the top of the fixing ring 341. The insert blocks 342 are adapted to the slot at the bottom of the mounting base 343. When the top of the fixing ring 341 is in contact with the bottom of the mounting base 343, the through hole in the mounting base 343 is aligned with the threaded hole 345, which allows the limit bolt 344 to pass through the through hole in the mounting base 343 and be threaded into the threaded hole 345, thereby realizing the installation of the conveying pipe 33. The purpose is to facilitate the removal of the conveying pipe 33 for cleaning and to expose the spiral conveying paddle 32 for easy cleaning.

[0047] 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 multi-stage fermentation tank for bio-organic fertilizer, characterized in that, Include: The tank body (1), the cover (2) and the pumping mechanism (3), the tank body (1) top is provided with cover (2) through mounting, the tank body (1) surface is equipped with feed valve pipe and discharge valve pipe, the cover (2) bottom is equipped with pumping mechanism (3) for the tank body (1) inner bottom material pumping to the upper part of tank body (1); The pumping mechanism (3) includes a rod (31), a spiral conveying paddle (32), a conveying pipe (33) and a connecting piece (34), the inner wall of the cover (2) is rotatably mounted with two rods (31), the surface of the two rods (31) is welded with a spiral conveying paddle (32), and the surface of the two spiral conveying paddles (32) is provided with a conveying pipe (33), and the top of the two conveying pipes (33) is mounted on the bottom of the cover (2) through the connecting piece (34).

2. The multi-stage fermentation tank for bio-organic fertilizer according to claim 1, characterized in that: The connecting piece (34) includes a fixed ring (341), an insertion block (342), a mounting seat (343), a limiting bolt (344) and a threaded hole (345), the top of the conveying pipe (33) is fixedly installed with a fixed ring (341), the top of the fixed ring (341) is provided with an insertion block (342) on both sides, the surface of the two insertion blocks (342) is clamped with a mounting seat (343), and the top of the two mounting seats (343) is provided on the bottom of the cover (2), the mounting seat (343) is provided with a through hole for the limiting bolt (344) to penetrate, and the surface of the insertion block (342) is provided with a threaded hole (345) threaded with the limiting bolt (344).

3. The multi-stage fermentation tank for bio-organic fertilizer according to claim 1, characterized in that: It also includes a reinforcing member (4) for stabilizing the rotation of the rod (31), the reinforcing member (4) includes a reinforcing ring (41) and a reinforcing rod (42), the bottom surface of the rod (31) is rotatably mounted with a reinforcing ring (41), the two sides of the reinforcing ring (41) are integrally processed with a reinforcing rod (42), and the lower ends of the two reinforcing rods (42) are fixed on the inner wall bottom of the tank body (1).

4. The multi-stage fermentation tank for bio-organic fertilizer according to claim 1, characterized in that: It also includes a driving member (5) for synchronous rotation of the two rods (31), the driving member (5) includes a driven wheel (51), a driving wheel (52), a driving rod (53), a toothed belt (54) and a motor (55), the top of the two rods (31) penetrates the top of the cover (2) and is provided with a driven wheel (51), the top of the cover (2) is provided with a motor (55) through a mounting bracket, the output end of the motor (55) is provided with a driving wheel (52) through a driving rod (53), and the driving wheel (52) and the two driven wheels (51) are connected through a toothed belt (54).

5. The multi-stage fermentation tank for bio-organic fertilizer according to claim 4, characterized in that: The surface of the driving rod (53) is provided with a first gear (6), the cover (2) is rotatably mounted with a stirring paddle (10) for assisting stirring in the tank body (1), and the surface of the stirring paddle (10) is fixedly mounted with a second gear (7) engaged with the first gear (6).

6. The multi-stage fermentation tank for bio-organic fertilizer according to claim 1, characterized in that: The top and bottom of the conveying pipe (33) are provided with flow grooves (8) for facilitating the flow of materials.

7. The multi-stage fermentation tank for bio-organic fertilizer according to claim 1, characterized in that: The bottom of the tank body (1) is provided with a heating disc (9), and the bottom of the heating disc (9) is provided with a plurality of leg portions.

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