Fermentation device for preparing agricultural organic fertilizer

By designing planetary gear sets and scrapers, and combining them with refrigeration and heating devices, the problems of insufficient mixing and inaccurate temperature control in traditional equipment have been solved, thereby improving the efficiency and quality of organic fertilizer production.

CN224677994UActive Publication Date: 2026-08-25QINGDAO WATER SOURCE ENVIRONMENTAL PROTECTION ENG CO LTD
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Patent Information

Application Number
CN202422549732.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2026-08-25
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

Traditional fertilizer fermentation equipment suffers from insufficient mixing and inaccurate temperature control, resulting in low efficiency and quality in organic fertilizer production.

Method used

It uses a planetary gear set to drive the stirring column to rotate and stir, combined with scraper cleaning, and is equipped with refrigeration and heating devices to flexibly adjust the temperature, ensuring fermentation uniformity and temperature control.

Benefits of technology

It achieves thorough mixing of the fermentation reaction and precise temperature control, improving the efficiency and quality of organic fertilizer production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fermentation device for preparing agricultural organic fertilizer, including a shell, a control panel on the front of the shell, a cooling device on the left side of the shell, a discharge port on the top of the shell with a solenoid valve inside, a receiving port at the bottom of the shell, a support column at the bottom of the shell, and a fermentation tank inside the shell. This fermentation device for preparing agricultural organic fertilizer can uniformly mix raw materials and fermenting agents, making the fermentation reaction more complete. A scraper ensures that the raw materials do not clump or stick inside the fermentation tank during fermentation and collection. The heating device heats from the center of the fermentation tank, providing better heating than conventional fermentation equipment. Furthermore, the internal cooling device, in conjunction with the heating device, allows for flexible temperature adjustment during compost fermentation, helping to improve the efficiency and quality of fertilizer production.
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Description

Technical Field

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

[0002] Fertilizer is a compound that helps plants grow and provides them with a large amount of nutrients needed for growth. Fertilizer is an indispensable part of modern agricultural production. Fertilizers on the market can be divided into two types according to their composition and function: inorganic fertilizers and organic fertilizers. Among them, organic fertilizers are the most widely used and the most frequently used.

[0003] Organic fertilizer fermentation is a biodegradation process in which microorganisms break down organic matter, such as crop residues and livestock manure, into stable humus, also known as organic fertilizer or compost. This process generates heat, killing pathogens and weed seeds, while the resulting organic fertilizer improves soil structure and increases soil fertility.

[0004] The fermentation of organic fertilizer requires stirring the raw materials to ensure sufficient contact with microorganisms. During the fermentation process, a suitable temperature is crucial for the fermentation effect. Temperatures that are too high or too low will affect the activity of microorganisms and lead to the failure of organic fertilizer fermentation. Traditional fertilizer fermentation equipment mostly uses manual stirring, resulting in insufficient mixing of fertilizer and fermentation agent. In addition, most of them only have heating functions. Once the internal temperature of the compost pile becomes too high, it can only rely on natural heat dissipation, which greatly affects the efficiency and quality of organic fertilizer production. Utility Model Content

[0005] The purpose of this invention is to provide a fermentation device for preparing agricultural organic fertilizer, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fermentation device for preparing agricultural organic fertilizer, comprising a shell, a control panel on the front of the shell, a cooling device on the left side of the shell, a discharge port on the top of the shell, an electromagnetic valve inside the discharge port, a receiving port at the bottom of the shell, a support column at the bottom of the shell, a fermentation tank inside the shell, the support column passing through the shell and fixedly connected to the bottom of the fermentation tank, three electromagnetic valves at the bottom of the fermentation tank, a stirring device on the left side of the fermentation tank and fixedly connected to the inner wall of the shell, and a heating device on the right side of the fermentation tank and fixedly connected to the inner wall of the shell.

[0007] Preferably, the refrigeration device includes a condenser, which is fixedly connected to the left side of the outer casing. The top of the condenser is fixedly connected to an evaporator tube. The evaporator tube passes through a through hole on the outer casing and is divided into multiple tubes that wrap around the outside of the fermentation tank. The ends of the evaporator tubes converge into one tube and are fixedly connected to a compressor. The compressor is fixedly installed at the bottom of the inner wall of the outer casing and is fixedly connected to the condenser through a through hole on the outer casing.

[0008] Preferably, the stirring device includes a motor, which is fixedly connected to the left side of the inner wall of the outer casing. The right side of the motor is movably connected to one end of a drive shaft, and the other end of the drive shaft is movably connected to the right side of the inner wall of the fermenter via a bearing. The drive shaft has a slot extending through the right end. A planetary gear set is provided on the left side of the drive shaft and is fixedly connected to the left side of the fermenter. Scrapers are fixedly connected to opposite positions on both sides of the drive shaft. Sealing plates are provided at both ends of the drive shaft inside the fermenter, and the two sealing plates are movably connected to the inner wall of the fermenter via sealing bearings. Stirring columns are provided at opposite positions on both sides of the drive shaft, and the stirring columns are designed with circling blades. The two sealing plates away from the planetary gear set are movably connected to one end of the two stirring columns via sealing bearings. The other ends of the two stirring columns are movably connected to the sealing plate near the planetary gear set via sealing bearings and are fixedly connected to the planetary gear set through it.

[0009] Preferably, the planetary gear set includes a driving gear, which is fixedly connected to the left side of the transmission shaft. Each of the two opposite sides of the driving gear meshes with a driven gear. The two driven gears are fixedly connected to the stirring column on the side away from the motor. The two driven gears are meshed with the inner side of the gear ring on the side away from the driving gear. The outer side of the gear ring is fixedly connected to the left side of the fermenter.

[0010] Preferably, the heating device includes a transformer, one side of which is fixedly connected to the inner wall of the housing, and the other side of which is fixedly connected to an electric heating tube, the electric heating tube being inserted into the drive shaft through a slot in the drive shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This fermentation device for preparing agricultural organic fertilizer uses a planetary gear set to drive two stirring columns to rotate and stir, which can evenly mix raw materials and fermentation agents, making the fermentation reaction more complete. The scraper can ensure that the raw materials do not clump and stick to the inside of the fermentation tank during fermentation and collection. The heating device heats from the center of the fermentation tank and the power can be flexibly adjusted through a transformer, resulting in a better heating effect than general fermentation equipment. In addition, the device is designed with a cooling device, which, together with the heating device, can flexibly adjust the temperature during the compost fermentation, which helps to improve the efficiency and quality of fertilizer production. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model.

[0013] Figure 2 This is a frontal cross-sectional view of the present invention.

[0014] Figure 3 This is a cross-sectional structural diagram of the fermentation tank of this utility model.

[0015] Figure 4 This is a schematic diagram of the planetary gear set of this utility model.

[0016] In the diagram: 1. Outer shell; 2. Control panel; 3. Discharge port; 4. Support column; 5. Refrigeration unit; 51. Condenser; 52. Evaporator; 53. Compressor; 6. Receiving port; 7. Fermentation tank; 8. Stirring device; 81. Motor; 82. Drive shaft; 83. Planetary gear set; 831. Driving wheel; 832. Driven wheel; 833. Gear ring; 84. Scraper; 85. Stirring column; 86. Sealing plate; 9. Heating device; 91. Transformer; 92. Electric heating element. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a fermentation device for preparing agricultural organic fertilizer, including a shell 1, a control panel 2 on the front of the shell 1, a cooling device 5 on the left side of the shell 1, a discharge port 3 on the top of the shell 1, an electromagnetic valve inside the discharge port 3, raw materials, water, fermentation agents, etc. are fed into the fermentation tank 7 through the discharge port 3, and the electromagnetic valve of the discharge port 3 is closed by the control panel 2, a receiving port 6 at the bottom of the shell 1, a support column 4 at the bottom of the shell 1, and a fermentation tank 7 inside the shell 1. The support column 4 passes through the shell 1 and is fixedly connected to the bottom of the fermentation tank 7. Three electromagnetic valves are installed at the bottom of the fermentation tank 7, a stirring device 8 is installed on the left side of the fermentation tank 7 and is fixedly connected to the inner wall of the shell 1, and a heating device 9 is installed on the right side of the fermentation tank 7 and is fixedly connected to the inner wall of the shell 1.

[0019] The refrigeration device 5 includes a condenser 51, which is fixedly connected to the left side of the outer casing 1. The top of the condenser 51 is fixedly connected to the evaporator 52. The evaporator 52 passes through a through hole on the outer casing 1 and is divided into multiple sections that wrap around the outside of the fermentation tank 7. The ends of the evaporator 52 converge into one section and are fixedly connected to the compressor 53. The compressor 53 is fixedly installed at the bottom of the inner wall of the outer casing 1. The compressor 53 is fixedly connected to the condenser 51 through a through hole on the outer casing 1. When the temperature inside the fermentation tank 7 is too high, the refrigeration device 5 is activated. The condenser 51 delivers coolant to the evaporator 52. The coolant absorbs heat and evaporates as it flows through the fermentation tank 7 in the evaporator 52. The gas flows into the compressor 53 along the evaporator 52. The compressor 53 compresses the gas and sends it back to the condenser 51. The condenser 51 cools the compressed gas back into a liquid state and sends it back into the evaporator 52. This process is repeated continuously to absorb heat from the compost pile, thereby reducing the temperature inside the fermentation tank 7. In conjunction with the heating device 9, the temperature during compost fermentation can be flexibly adjusted, which helps to improve the efficiency and quality of fertilizer production.

[0020] The stirring device 8 includes a motor 81, which is fixedly connected to the left side of the inner wall of the outer casing 1. The right side of the motor 81 is movably connected to one end of a drive shaft 82, and the other end of the drive shaft 82 is movably connected to the right side of the inner wall of the fermentation tank 7 via a bearing. A slot is formed inside the drive shaft 82, penetrating the right end. A planetary gear set 83 is arranged on the left side of the drive shaft 82, and is fixedly connected to the left side of the fermentation tank 7. Scrapers 84 are fixedly connected to opposite positions on both sides of the drive shaft 82. Sealing plates 86 are arranged at both ends of the drive shaft 82 inside the fermentation tank 7, and are movably connected to the inner wall of the fermentation tank 7 via sealing bearings. Stirring columns 85 are arranged on opposite positions on both sides of the drive shaft 82, and are designed with circling blades. One of the two sealing plates 86 away from the planetary gear set 83 is connected to the right side of the drive shaft 82 via a sealing bearing. One end of each of the two stirring columns 85 is movably connected, and the other end of each stirring column 85 is movably connected to a sealing plate 86 near the planetary gear set 83 via a sealed bearing, and is fixedly connected to the planetary gear set 83 through the sealing bearing. The two sealing plates 86 rotate synchronously with the stirring columns 85 via the sealed bearing, ensuring that the fertilizer inside the fermentation tank 7 will not leak. After fermentation is completed, the three solenoid valves at the bottom of the fermentation tank 7 are opened, and the fermented fertilizer falls down through the receiving port 6. The scraper 84 continuously cleans the inner wall of the fermentation tank 7 to prevent fertilizer from sticking to the inside of the fermentation tank 7 and not falling down. The planetary gear set 83 drives the two stirring columns 85 to rotate and stir, which can evenly mix the raw materials and fermentation agent, making the fermentation reaction more complete. The scraper 84 can ensure that the raw materials do not clump together and stick to the inside of the fermentation tank 7 during fermentation and collection.

[0021] The planetary gear set 83 includes a driving gear 831, which is fixedly connected to the left side of the transmission shaft 82. Each of the two opposite sides of the driving gear 831 meshes with a driven gear 832. The side of each driven gear 832 away from the motor 81 is fixedly connected to the stirring column 85. The end of each driven gear 832 away from the driving gear 831 meshes with the inner side of the gear ring 833. The outer side of the gear ring 833 is fixedly connected to the left side of the fermentation tank 7. When the stirring device 8 is started, the motor 81 drives the transmission shaft 82 to rotate. The transmission shaft 82 drives the scraper 84 and the driving gear 831 to rotate, scraping off the fertilizer adhering to the inner wall of the fermentation tank 7. At the same time, it drives the two driven gears 832 to rotate. The driven gears 832 rotate around the driving gear 831 under the constraint of the gear ring 833, driving the two stirring columns 85 to move around the transmission shaft 82 while stirring.

[0022] The heating device 9 includes a transformer 91. One side of the transformer 91 is fixedly connected to the inner wall of the outer casing 1, and the other side of the transformer 91 is fixedly connected to an electric heating tube 92. The electric heating tube 92 is inserted into the drive shaft 82 through a slot. When the internal temperature of the fermentation tank 7 is too low, the heating device 9 is activated. The current is delivered to the electric heating tube 92 after being regulated by the transformer 91. The electric heating tube 92 heats up inside the drive shaft 82, raising the internal temperature of the fermentation tank 7. The heating device 9 heats from the center of the fermentation tank 7, and the power can be flexibly adjusted by the transformer 91. The heating effect is better than that of general fermentation equipment.

[0023] Working Principle: Raw materials, water, and fermentation agents are added to the fermentation tank 7 through the discharge port 3 in the required amounts. The solenoid valve of the discharge port 3 is closed via the control panel 2, and the stirring device 8 is started. The motor 81 drives the drive shaft 82 to rotate, which in turn drives the scraper 84 and the drive wheel 831 to rotate, scraping off the fertilizer adhering to the inner wall of the fermentation tank 7. At the same time, it drives the two driven wheels 832 to rotate. Under the constraint of the gear ring 833, the driven wheels 832 rotate around the drive wheel 831, driving the two stirring columns 85 to move around the drive shaft 82 while stirring. The two sealing plates 86 rotate synchronously with the rotation of the stirring columns 85 through the sealing bearings, ensuring that the fertilizer inside the fermentation tank 7 does not leak. When the temperature inside the fermentation tank 7 is too low, the heating device 9 is started. The current is regulated by the transformer 91 and then supplied to the electric heating device. Heating element 92 heats up inside drive shaft 82, raising the internal temperature of fermentation tank 7. When the internal temperature of fermentation tank 7 becomes too high, refrigeration device 5 is activated. Condenser 51 delivers coolant to evaporator 52. As coolant flows through fermentation tank 7 in evaporator 52, it absorbs heat and evaporates. Gas flows into compressor 53 along evaporator 52. Compressor 53 compresses the gas and sends it back to condenser 51. Condenser 51 cools the compressed gas back into liquid and sends it back into evaporator 52. This process is repeated continuously to absorb heat from the compost pile, thereby lowering the internal temperature of fermentation tank 7. After fermentation is complete, the three solenoid valves at the bottom of fermentation tank 7 are opened, and the fermented fertilizer falls through receiving port 6. Scraper 84 continuously cleans the inner wall of fermentation tank 7 to prevent fertilizer from sticking inside fermentation tank 7 and failing to fall.

[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 apparatus for preparing agricultural organic fertilizer, comprising a shell (1), characterized in that: The outer shell (1) has a control panel (2) on the front, a refrigeration device (5) on the left side, a discharge port (3) on the top, a solenoid valve inside the discharge port (3), a receiving port (6) at the bottom, a support column (4) at the bottom, a fermentation tank (7) inside, the support column (4) passing through the outer shell (1) and fixedly connected to the bottom of the fermentation tank (7), three solenoid valves at the bottom, a stirring device (8) on the left side, fixedly connected to the inner wall of the outer shell (1), and a heating device (9) on the right side, fixedly connected to the inner wall of the outer shell (1).

2. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 1, characterized in that: The refrigeration device (5) includes a condenser (51), which is fixedly connected to the left side of the outer shell (1). The top of the condenser (51) is fixedly connected to the evaporator (52). The evaporator (52) passes through the through hole on the outer shell (1) and is divided into multiple strips that wrap around the outside of the fermentation tank (7). The ends of the evaporator (52) converge into one strip and are fixedly connected to the compressor (53). The compressor (53) is fixedly installed at the bottom of the inner wall of the outer shell (1). The compressor (53) is fixedly connected to the condenser (51) through the through hole on the outer shell (1).

3. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 1, characterized in that: The stirring device (8) includes a motor (81), which is fixedly connected to the left side of the inner wall of the outer casing (1). The right side of the motor (81) is movably connected to one end of a drive shaft (82). The other end of the drive shaft (82) is movably connected to the right side of the inner wall of the fermentation tank (7) via a bearing. The drive shaft (82) has a slot extending through the right end. A planetary gear set (83) is provided on the left side of the drive shaft (82), which is fixedly connected to the left side of the fermentation tank (7). Scrapers (84) are fixedly connected to opposite positions on both sides of the drive shaft (82). Sealing plates (86) are provided at both ends inside the fermenter (7). The two sealing plates (86) are movably connected to the inner wall of the fermenter (7) through sealing bearings. Stirring columns (85) are provided at opposite positions on both sides of the drive shaft (82). The stirring columns (85) are designed with surrounding blades. One of the two sealing plates (86) away from the planetary gear set (83) is movably connected to one end of the two stirring columns (85) through a sealing bearing. The other end of the two stirring columns (85) is movably connected to the sealing plate (86) near the planetary gear set (83) through a sealing bearing, and is fixedly connected to the planetary gear set (83) through it.

4. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 3, characterized in that: The planetary gear set (83) includes a driving gear (831), which is fixedly connected to the left side of the transmission shaft (82). The two opposite sides of the driving gear (831) are each engaged with a driven gear (832). The side of each driven gear (832) away from the motor (81) is fixedly connected to the stirring column (85). The end of each driven gear (832) away from the driving gear (831) is engaged with the inner side of the gear ring (833). The outer side of the gear ring (833) is fixedly connected to the left side of the fermenter (7).

5. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 1, characterized in that: The heating device (9) includes a transformer (91), one side of which is fixedly connected to the inner wall of the outer casing (1), and the other side of which is fixedly connected to an electric heating tube (92). The electric heating tube (92) is inserted into the drive shaft (82) through a slot.