Layered aeration stepped fermentation aerobic fermentation device
By setting up a layered aeration system and heating layer in the fermentation tank, the problem of uneven fermentation of materials is solved, and the stability of the fermentation process and the production efficiency are improved.
Patent Information
- Application Number
- CN202510371789.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-06-13
AI Technical Summary
The fermentation of materials in existing fermentation tanks is uneven, resulting in unstable quality of finished products and lack of effective material mixing and temperature regulation mechanisms.
A layered aerobic fermentation aerobic fermentation device was designed. By setting up four groups of symmetrically distributed aeration pipes inside the fermentation tank, the tank body was divided into a heating zone, a high temperature zone, a cooling zone and a decomposition zone, and a heating layer was set up in the tank wall to regulate the temperature.
The uniformity of material fermentation is achieved, the utilization efficiency of the aeration system is improved, the stability of the fermentation process and the continuous production are ensured, and the production efficiency is greatly improved.
Smart Images
Figure CN120136588A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fermentation, and specifically to a layered aeration stepped aerobic fermentation device for fermentation. Background Art
[0002] At present, most fermentation tanks used for the production of organic fertilizers adopt an overall fermentation method, that is, all materials in the tank are fermented simultaneously. However, in the actual production process, this fermentation method has obvious limitations. Due to the uneven distribution of the physical properties and environmental conditions of the materials inside the fermentation tank, there are significant differences in the fermentation degree of the upper and lower layer materials. This uneven fermentation phenomenon will directly affect the quality of the finished product. Especially when discharging, the unfermented materials may be discharged mixed with the finished fertilizer, thereby reducing the stability of the fertilizer quality and the use effect. The main reason for this problem is the lack of an effective material mixing and temperature control mechanism inside the fermentation tank, so that the materials in different regions cannot obtain consistent fermentation conditions. In addition, factors such as the difference in material bulk density and uneven ventilation will also exacerbate the uneven fermentation phenomenon. This situation not only affects the product quality, but also may increase the difficulty and cost of subsequent treatment, reduce the production efficiency. Therefore, we propose a layered aeration stepped aerobic fermentation device. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a layered aeration stepped aerobic fermentation device, which can make the materials ferment evenly and can effectively solve the problems in the background art.
[0004] To achieve the above object, the present invention provides the following technical solutions: a layered aeration stepped fermentation aerobic fermentation device, including a fermentation tank. On the left side of the upper end of the fermentation tank, there is a material inlet, and inside the material inlet, there is a material crusher. On the right side of the lower end of the fermentation tank, there is a screw conveyor. Inside the screw conveyor, there is a material conveying shaft. At the right end of the screw conveyor, there is a material outlet. At the upper end of the fermentation tank, there is an exhaust port. In the middle of the lower end of the fermentation tank, there is a hydraulic motor. On the output shaft of the hydraulic motor, there is a stirring shaft located inside the fermentation tank. At the lower end of the circumferential surface of the stirring shaft, there is a rotary aeration joint. On the circumferential surface of the stirring shaft, there are three four-way joints. Above the circumferential surface of the stirring shaft, there is a three-way joint. Inside the fermentation tank, there are four groups of air pipes. The four groups of air pipes are symmetrically arranged in pairs. The four groups of air pipes arranged in pairs divide the inside of the fermentation tank from top to bottom into a heating zone, a high-temperature zone, a cooling zone, and a composting zone. The two air pipes on the lower side of the composting zone are in contact with the lower end inside the fermentation tank. The air pipes are provided with evenly distributed air holes. All the air pipes are respectively connected to the stirring shaft through the three-way joint and the three four-way joints. The surface of the air pipe is installed with evenly distributed temperature sensors. At the lower end of the fermentation tank, there is a blower. The air outlet pipe of the blower is connected to the rotary aeration joint. By setting the air pipes for aeration, the fermentation tank is made of 304 stainless steel.
[0005] Furthermore, a heating layer is provided inside the tank wall of the fermentation tank. At the upper end of the left side of the surface of the fermentation tank, there is a heating layer hot water inlet. At the lower end of the right side of the surface of the fermentation tank, there is a heating layer hot water outlet. Both the heating layer hot water inlet and the heating layer hot water outlet are communicated with the heating layer. By setting the heating layer, the temperature inside the fermentation tank can be effectively guaranteed.
[0006] Furthermore, a hot water circulation pump and an instantaneous water heater are installed at the lower end of the fermentation tank. The inlet pipe provided on the hot water circulation pump is connected to the outlet of the instantaneous water heater. The inlet of the instantaneous water heater is connected to the heating layer hot water outlet through a pipe. The outlet pipe of the hot water circulation pump is connected to the heating layer hot water inlet. By setting the instantaneous water heater to heat the water in the heating layer, and by setting the hot water circulation pump, it is convenient for the hot water to move.
[0007] Furthermore, at the upper end of the circumferential surface of the fermentation tank, there is a water inlet. At the lower end of the circumferential surface of the fermentation tank, there is a water outlet. Both the water inlet and the water outlet are communicated with the inner cavity of the fermentation tank. By setting the water inlet and the water outlet, it is convenient for users to inject water into the fermentation tank. Valves are provided inside both the water inlet and the water outlet.
[0008] Further, a central control system is installed at the left end of the lower side of the surface of the fermentation tank. A brush slip ring is installed on the circumferential surface of the stirring shaft. The brush slip ring is located below the rotary aeration joint. The input end of the central control system is electrically connected to the output end of an external power supply. All temperature sensors are bidirectionally electrically connected to the central control system through the brush slip ring. The input end of the material grinder installed at the material inlet is electrically connected to the output end of the central control system. The temperature inside the fermentation tank is detected by setting temperature sensors.
[0009] Further, a reserved equipment placement area is provided at the lower end of the fermentation tank away from the fan, screw conveyor, hot water circulation pump, and instant water heater.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: The present hierarchical aeration step fermentation aerobic fermentation device has the following advantages: 1. By setting four groups of symmetrically distributed aeration pipes, the inside of the fermentation tank is divided into four functional areas: a heating area, a high-temperature area, a cooling area, and a composting area from top to bottom, significantly improving the utilization efficiency of the aeration system, realizing continuous feeding of materials and continuous output of finished products, and greatly improving production efficiency.
[0011] 2. By arranging a heating layer inside the tank wall of the fermentation tank, hot water can be injected for heat preservation during use, effectively solving the problem of fermentation heat preservation in low-temperature environments in winter and ensuring the stable operation of the fermentation process. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure at the hydraulic motor of the present invention; Figure 3 is a schematic diagram of the structure at the temperature sensor of the present invention; Figure 4 is a schematic diagram of the structure at the material inlet of the present invention; Figure 5 is a schematic diagram of the structure at the water outlet of the present invention; Figure 6 is a schematic diagram of the structure at the material conveying shaft of the present invention.
[0013] In the figure: 1 material inlet, 2 material outlet, 3 water inlet, 4 water outlet, 5 exhaust port, 6 material conveying shaft, 7 hydraulic motor, 8 stirring shaft, 9 temperature sensor, 10 aeration pipe, 11 conductive slip ring, 12 rotary aeration joint, 13 four-way joint, 14 fan, 15 reserved equipment placement area, 16 three-way interface, 17 screw conveyor, 18 central control system, 19 heating layer hot water inlet, 20 heating layer hot water outlet, 21 hot water circulation pump, 22 instant water heater, 23 fermentation tank. DETAILED DESCRIPTION OF THE INVENTION
[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0015] Please refer to Figure 1-6, this embodiment provides a technical solution: a hierarchical aeration stepped fermentation aerobic fermentation device, including a fermentation tank 23. On the left side of the upper end of the fermentation tank 23, there is a material inlet 1. Inside the material inlet, there is a material crusher installed. On the right side of the lower end of the fermentation tank 23, there is a screw conveyor 17 installed. Inside the screw conveyor 17, there is a material conveying shaft 6 installed. At the right end of the screw conveyor 17, there is a material outlet 2. At the upper end of the fermentation tank 23, there is an exhaust port 5. In the middle of the lower end of the fermentation tank 23, there is a hydraulic motor 7 installed. On the output shaft of the hydraulic motor 7, there is a stirring shaft 8 fixed. The stirring shaft 8 is located inside the fermentation tank 23. At the lower end of the circumferential surface of the stirring shaft 8, there is a rotary aeration joint 12 installed. On the circumferential surface of the stirring shaft 8, there are three four-way joints 13 arranged. Above the circumferential surface of the stirring shaft 8, there is a three-way joint 16 arranged. Inside the fermentation tank 23, there are four groups of aeration pipes 10 arranged. The four groups of aeration pipes 10 are arranged symmetrically in pairs. The four groups of aeration pipes 10 arranged in pairs divide the inside of the fermentation tank 23 from top to bottom into a heating zone, a high-temperature zone, a cooling zone, and a composting zone. The two aeration pipes 10 on the lower side of the composting zone are in contact with the lower end inside the fermentation tank 23. The aeration pipes 10 are provided with evenly distributed aeration holes. All the aeration pipes 10 are respectively connected to the stirring shaft 8 through the three-way joint 16 and the three four-way joints 13. On the surface of the aeration pipes 10, there are evenly distributed temperature sensors 9 installed. At the lower end of the fermentation tank 23, there is a blower 14 installed. The air outlet pipe of the blower 14 is connected to the rotary aeration joint 12. Inside the tank wall of the fermentation tank 23, there is a heating layer installed. At the upper end of the left side of the surface of the fermentation tank 23, there is a heating layer hot water inlet 19. At the lower end of the right side of the surface of the fermentation tank 23, there is a heating layer hot water outlet 20. The heating layer hot water inlet 19 and the heating layer hot water outlet 20 are both communicated with the heating layer. At the lower end of the fermentation tank 23, there is a hot water circulation pump 21 and an instant water heater 23 installed. The inlet pipe provided on the hot water circulation pump 21 is connected to the outlet of the instant water heater 23. The inlet of the instant water heater 23 is connected to the heating layer hot water outlet 20 through a pipe. The outlet pipe of the hot water circulation pump 21 is connected to the heating layer hot water inlet 19. At the upper end of the circumferential surface of the fermentation tank 23, there is a water inlet 3. At the lower end of the circumferential surface of the fermentation tank 23, there is a water outlet 4. The water inlet 3 and the water outlet 4 are both communicated with the inner cavity of the fermentation tank 23. At the left end of the lower side of the surface of the fermentation tank 23, there is a central control system 18 installed. On the circumferential surface of the stirring shaft 8, there is a brush slip ring 11 installed. The brush slip ring 11 is located below the rotary aeration joint 12. The input end of the central control system 18 is electrically connected to the output end of an external power source. All the temperature sensors 9 are bidirectionally electrically connected to the central control system 18 through the brush slip ring 11. The input end of the material crusher installed at the material inlet 1 is electrically connected to the output end of the central control system 18. At the lower end of the fermentation tank 23, away from the blower 14, the screw conveyor 17, the hot water circulation pump 21, and the instant water heater 23, there is a reserved equipment placement area 15. By setting the temperature sensors 9, the temperature inside the fermentation tank 23 is detected. By setting the water inlet 3 and the water outlet 4, it is convenient for users to inject water into the fermentation tank 23.Valves are provided inside both the water inlet 3 and the water outlet 4. The instant water heater 23 is provided to heat the water in the heating layer. The hot water circulation pump 21 is provided to facilitate the movement of hot water. The heating layer is provided to effectively ensure the temperature inside the fermentation tank 23. The aeration pipe 10 is provided for aeration.,
[0016] The working principle of the hierarchical aeration step fermentation aerobic fermentation device provided by the present invention is as follows: During use, first mix the fermentation materials and then inject them into the inside of the fermentation tank 23 through the material grinder at the material inlet 1. At this time, fermentation can start. According to the oxygen change and volume change of the materials during aerobic fermentation, start the hydraulic motor 7 during fermentation to make the stirring shaft 8 rotate. During its rotation, the external air is injected into the upper and lower four groups of aeration pipes 10 arranged in pairs through the rotary aeration joint 12 by the fan 4. Then, aeration is carried out through the evenly distributed aeration holes opened on the four groups of aeration pipes 10. The four groups of aeration pipes 10 arranged in pairs divide the inside of the fermentation tank 23 from top to bottom into a temperature rising area, a high temperature area, a temperature decreasing area and a composting area. During aeration, all the temperature sensors 9 continuously detect the temperature inside the fermentation tank 23. At the same time, the hot water circulation pump 21 injects hot water into the heating layer provided inside the wall of the fermentation tank 23 to ensure the temperature inside the fermentation tank 23. In this way, effective fermentation can be carried out. After fermentation, control the rotation of the material conveying shaft 6 in the screw conveyor 17 to convey the composted materials out of the fermentation tank 23.,
[0017] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.,
Claims
1. A layered aeration step fermentation aerobic fermentation device, characterized by: The fermentation tank (23) comprises a fermentation tank (23), wherein a material inlet (1) is arranged on the left side of the upper end of the fermentation tank (23), a material crusher is installed inside the logistics inlet, a screw conveyor (17) is installed on the right side of the lower end of the fermentation tank (23), a material conveying shaft (6) is installed inside the screw conveyor (17), a material outlet (2) is arranged on the right end of the screw conveyor (17), an exhaust port (5) is arranged on the upper end of the fermentation tank (23), a hydraulic motor (7) is installed in the middle of the lower end of the fermentation tank (23), a stirring shaft (8) is fixed on the output shaft of the hydraulic motor (7), the stirring shaft (8) is located inside the fermentation tank (23), a rotary aeration joint (12) is installed at the lower end of the circumferential surface of the stirring shaft (8), three four-way joints (13) are arranged on the circumferential surface of the stirring shaft (8), and the stirring shaft (8) is provided with a plurality of rotating shafts (14). A three-way joint (16) is arranged above the circumferential surface of the shaft (8), and four groups of aeration pipes (10) are arranged inside the fermentation tank (23). The four groups of aeration pipes (10) are symmetrically arranged in pairs. The four groups of aeration pipes (10) arranged in pairs divide the interior of the fermentation tank (23) from top to bottom into a temperature rising zone, a high temperature zone, a temperature falling zone and a decomposition zone. The two aeration pipes (10) on the lower side of the decomposition zone are fitted with the lower end of the interior of the fermentation tank (23). The aeration pipes (10) are provided with evenly distributed aeration holes. All the aeration pipes (10) are connected to the stirring shaft (8) through the three-way joint (16) and the three four-way joints (13), and evenly distributed temperature sensors (9) are installed on the surface of the aeration pipes (10). A fan (14) is installed at the lower end of the fermentation tank (23), and the air outlet duct of the fan (14) is connected to the rotary aeration joint (12).
2. The stratified aeration step fermentation aerobic fermentation device according to claim 1, characterized in that: A heating layer is arranged inside the tank wall of the fermentation tank (23); a heating layer hot water inlet (19) is arranged at the upper end of the left side of the surface of the fermentation tank (23); a heating layer hot water outlet (20) is arranged at the lower end of the right side of the surface of the fermentation tank (23); and both the heating layer hot water inlet (19) and the heating layer hot water outlet (20) are in communication with the heating layer.
3. The stratified aeration step fermentation aerobic fermentation device according to claim 2, characterized in that: A hot water circulation pump (21) and an instant water heater (23) are installed at the lower end of the fermentation tank (23); a water inlet pipe provided on the hot water circulation pump (21) is connected to a water outlet of the instant water heater (23); the water inlet of the instant water heater (23) is connected to a hot water outlet (20) of the heating layer via a pipe; and the water outlet pipe of the hot water circulation pump (21) is connected to a hot water inlet (19) of the heating layer.
4. The stratified aeration step fermentation aerobic fermentation device according to claim 1, characterized in that: A water inlet (3) is provided at the upper end of the circumferential surface of the fermentation tank (23), and a water outlet (4) is provided at the lower end of the circumferential surface of the fermentation tank (23); both the water inlet (3) and the water outlet (4) are in communication with the inner cavity of the fermentation tank (23).
5. The stratified aeration step fermentation aerobic fermentation device according to claim 1, characterized in that: A central control system (18) is installed at the left end of the lower side of the fermentation tank (23), a brush slip ring (11) is installed on the circumferential surface of the stirring shaft (8), and the brush slip ring (11) is located below the rotary aeration joint (12). The input end of the central control system (18) is electrically connected to the output end of an external power supply, and all temperature sensors (9) are bidirectionally electrically connected to the central control system (18) through the brush slip ring (11). The input end of the material crusher installed at the material inlet (1) is electrically connected to the output end of the central control system (18).
6. The stratified aeration step fermentation aerobic fermentation device according to claim 3, characterized in that: A reserved equipment placement area (15) is provided at the lower end of the fermentation tank (23) away from the fan (14), the screw conveyor (17), the hot water circulation pump (21) and the instant water heater (23).