High-efficiency aerobic composting reactor for pig manure

Abstract

A high-efficiency aerobic composting reactor for pig manure, comprising a frame, wherein a reaction tank is welded inside the frame, and a screw feeder for high-carbon-content materials and a screw feeder for high-nitrogen-content materials are respectively fixed on the frame at two ends of the reaction tank. By means of mounting second servo motors, etc., when the apparatus is in use, a user can put into the reaction tank pig manure to undergo a composting reaction, then input pre-measured carbon-to-nitrogen ratio data of pig manure raw materials into a PLC, and set ideal carbon-to-nitrogen ratio data for the reaction; then, after performing computation and processing, the PLC can control a corresponding second servo motor on the screw feeder for high-carbon-content materials to start when the carbon content is low, or can control a corresponding second servo motor on the screw feeder for high-nitrogen-content materials to start when the nitrogen content is low, so as to feed, in an automated manner, carbon-to-nitrogen ratio regulation materials into a corresponding carbon-to-nitrogen ratio regulation housing provided at the top of the reaction tank, thereby regulating the carbon-to-nitrogen ratio of a product.

Description

A high-efficiency aerobic composting reactor for pig manure Technical Field

[0001] This invention relates to the field of aerobic composting technology, specifically to a high-efficiency aerobic composting reactor for pig manure. Background Technology

[0002] Pig manure, chicken manure, or cow manure are common organic wastes. These organic wastes can be converted into biogas and pig manure through biogas digester fermentation technology. The resulting biogas is a clean energy source that can be used in daily life and agricultural production, while pig manure is rich in organic matter and trace elements. After being processed by a pig manure aerobic composting reactor, it will be transformed into high-quality organic fertilizer.

[0003] Traditional aerobic composting reactors for pig manure typically only promote composting by heating and stirring the materials. They are not suitable for intelligently controlling the carbon-nitrogen ratio of the materials based on their quality. Considering that adjusting the carbon-nitrogen ratio can affect the composting speed and the stability of organic matter, this leads to low composting efficiency and quality. Furthermore, they cannot comprehensively monitor and adjust the temperature, pressure, and oxygen concentration during the composting reaction. This makes it difficult to provide suitable reaction environment data for aerobic composting of pig manure, affecting the final product's humic acid or humic matter and nitrogen retention. Based on this, we propose a novel, high-efficiency aerobic composting reactor for pig manure. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency aerobic composting reactor for pig manure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency aerobic composting reactor for pig manure, comprising a frame, wherein a reaction chamber is welded inside the frame, and a screw feeder for high-carbon content materials and a screw feeder for high-nitrogen content materials are respectively fixed on the frame at both ends of the reaction chamber. A second servo motor is installed on the top of each screw feeder for high-carbon content materials and the screw feeder for high-nitrogen content materials. A PLC controller is installed on one side of the reaction chamber, and screw feeders for high-carbon content materials and high-nitrogen content materials are respectively installed at both ends of the top of the reaction chamber. The reactor is equipped with a carbon-nitrogen ratio adjustment housing that matches the machine. A stepper motor is installed on one side of the carbon-nitrogen ratio adjustment housing. A sealing inner plate is connected to the output end of the stepper motor inside the carbon-nitrogen ratio adjustment housing. A pressure sensor is installed inside the sealing inner plate. A first servo motor is evenly installed on the top of the reactor. A mixing shaft is connected to the output end of the first servo motor. An electric heating block is installed on the mixing shaft. An air intake pump and an exhaust pump are installed in sequence on the side of the reactor away from the PLC controller. A temperature sensor, a pressure gauge, and an oxygen concentration monitor are installed in sequence at the top inside the reactor.

[0006] Preferably, both the screw feeder for high carbon content materials and the screw feeder for high nitrogen content materials are equipped with a pre-feeding trough at their input ends.

[0007] Preferably, the output ends of both the screw feeder for high carbon content materials and the screw feeder for high nitrogen content materials are equipped with a guide pipe connected to the carbon-nitrogen ratio adjustment reserved shell.

[0008] Preferably, a hollow bearing is provided between the middle position of the inner sealing plate away from the stepper motor and the carbon-nitrogen ratio adjustment reserved shell.

[0009] Preferably, a telescopic cylinder is fixed on the carbon-nitrogen ratio adjustment housing on one side of the hollow bearing.

[0010] Preferably, the top of the reaction chamber is provided with an upper pig manure inlet, and a sealing plug is threaded onto the upper pig manure inlet.

[0011] Preferably, the bottom of the reaction chamber is fitted with a discharge cover plate by screws.

[0012] Preferably, both the intake pump and the exhaust pump are connected to the interior of the reaction chamber, and both the intake pump and the exhaust pump are equipped with flanges.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) This high-efficiency aerobic composting reactor for pig manure optimizes its performance by installing a screw feeder for high-nitrogen materials. Users can input pig manure obtained from the fermentation of chicken manure or other manure materials into the reactor chamber, input the pre-measured carbon-nitrogen ratio data of the pig manure raw material into the PLC controller, and set the ideal carbon-nitrogen ratio data for the reaction. After calculation, the PLC controller can control the second servo motor on the corresponding high-carbon-content material screw feeder or high-nitrogen-content material screw feeder to start when the carbon content is low or the nitrogen content is low, and start the material stored in the pre-feeding tank at the input end. The material is automatically fed into the pre-reserved shell at the top of the reactor chamber to adjust the carbon-nitrogen ratio. The inner plate of the pre-reserved shell, which is equipped with a pressure sensor, monitors the quality of the material and sends the measurement data to the PLC controller. When the corresponding quality is reached, the stepper motor is started to drive the inner plate to flip and complete the feeding before resetting. This quantitative amount of material is fed into the reactor chamber and mixed with the pig manure product. This allows the device to automatically and intelligently control the pig manure product. Adjusting the carbon-nitrogen ratio can affect the composting speed and the stability of organic matter, which is beneficial to improving the humic acid or humic matter and nitrogen retention effect.

[0015] (2) The high-efficiency aerobic composting reactor for pig manure is equipped with an oxygen concentration monitor, which optimizes the structure of the device. The temperature sensor, pressure gauge and oxygen concentration monitor the temperature, pressure and oxygen concentration of the internal environment of the reactor in real time. This allows the PLC controller to intelligently control the heating block to generate heat based on the reaction environment data, so as to heat the internal environment of the reactor to a suitable composting reaction temperature. The suitable high temperature will promote and accelerate the composting reaction. In addition, the air pump can be intelligently controlled to fill the reactor with air to provide oxygen content in the internal environment of the reactor. This helps the aerobic composting reaction to proceed. When the internal environment pressure is too high due to the exhaust gas generated by the composting reaction, the exhaust pump can be started to extract the gas inside the reactor, realize the ventilation function, and ensure the safety and stability of the internal environment of the reactor. In actual aerobic composting, aerobic bacteria decompose organic matter under sufficient oxygen conditions to produce carbon dioxide and water. This method has a higher temperature and shorter cycle, which can decompose organic matter more thoroughly and has a good composting effect. Attached Figure Description

[0016] Figure 1 is a front view of the structure of the present invention;

[0017] Figure 2 is a side view of the structure of the present invention;

[0018] Figure 3 is a front view structural schematic diagram of the screw feeder for high nitrogen content materials according to the present invention;

[0019] Figure 4 is a schematic diagram of the rear view structure of the first servo motor of the present invention;

[0020] Figure 5 is a top view cross-sectional diagram of the carbon-nitrogen ratio adjustment reserved shell structure of the present invention;

[0021] Figure 6 is an enlarged structural diagram of point A in Figure 1 of this invention.

[0022] In the diagram: 1. Frame; 2. Discharge cover; 3. PLC controller; 4. Carbon-nitrogen ratio adjustment housing; 5. Screw feeder for high carbon content materials; 6. First servo motor; 7. Screw feeder for high nitrogen content materials; 8. Hollow bearing; 9. Reactor box; 10. Pre-feeding trough; 11. Pig manure inlet; 12. Air pump; 13. Exhaust pump; 14. Temperature sensor; 15. Guide pipe; 16. Second servo motor; 17. Heating block; 18. Mixing shaft; 19. Stepper motor; 20. Sealing inner plate; 21. Pressure sensor; 22. Telescopic cylinder; 23. Pressure gauge; 24. Oxygen concentration monitor. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] Please refer to Figures 1-6. One embodiment of the present invention is a high-efficiency aerobic composting reactor for pig manure, which includes a frame 1. A reaction chamber 9 is welded inside the frame 1. A screw feeder 5 for high carbon content materials and a screw feeder 7 for high nitrogen content materials are respectively fixed on the frame 1 at both ends of the reaction chamber 9.

[0025] The top of both the screw feeder 5 for high carbon content materials and the screw feeder 7 for high nitrogen content materials is equipped with a second servo motor 16, and a PLC controller 3 is installed on one side of the reaction chamber 9.

[0026] Both ends of the top of the reaction chamber 9 are equipped with carbon-nitrogen ratio adjustment reserved shells 4 that match the screw feeder 5 for high carbon content materials and the screw feeder 7 for high nitrogen content materials;

[0027] A stepper motor 19 is installed on one side of the carbon-nitrogen ratio adjustment reserved shell 4. The output end of the stepper motor 19 is connected to the inner sealing plate 20 inside the carbon-nitrogen ratio adjustment reserved shell 4. A pressure sensor 21 is installed inside the inner sealing plate 20.

[0028] Both the screw feeder 5 for high carbon content materials and the screw feeder 7 for high nitrogen content materials are equipped with a pre-feeding trough 10 at their input ends;

[0029] In use, the user can put the fermented pig manure (obtained from chicken manure or other manure materials to be composted) into the reactor chamber 9, and then input the pre-measured carbon-nitrogen ratio data of the pig manure raw material into the PLC controller 3, and set the ideal carbon-nitrogen ratio data for the reaction. At this time, after calculation and processing, the PLC controller 3 can control the second servo motor 16 on the corresponding high carbon content material screw feeder 5 or high nitrogen content material screw feeder 7 to start when the carbon content is low or the nitrogen content is low, respectively, so as to automatically feed the material stored in the pre-feeding tank 10 at the input end into the corresponding material at the top of the reactor chamber 9. Inside the carbon-nitrogen ratio adjustment reserved shell 4, the inner sealing plate 20, which is equipped with a pressure sensor 21, monitors the quality of the carbon-nitrogen ratio adjustment material and sends the measurement data to the PLC controller 3. When the corresponding quality is reached, the stepper motor 19 is controlled to start and drive the inner sealing plate 20 to flip to complete the feeding and then reset. These quantitative carbon-nitrogen ratio adjustment materials are fed into the reaction chamber 9 and mixed with the pig manure product, so that the device can automatically and intelligently control the pig manure product. Adjusting the carbon-nitrogen ratio can affect the composting speed and the stability of organic matter.

[0030] The top of the reaction chamber 9 is uniformly equipped with a first servo motor 6. The output end of the first servo motor 6 is connected to a mixing shaft 18. A heating block 17 is installed on the mixing shaft 18. An air inlet pump 12 and an exhaust pump 13 are installed in sequence on the side of the reaction chamber 9 away from the PLC controller 3. A temperature sensor 14, a pressure gauge 23 and an oxygen concentration monitor 24 are installed in sequence at the top inside the reaction chamber 9.

[0031] During use, the temperature sensor 14, pressure gauge 23, and oxygen concentration monitor 24 monitor the temperature, pressure, and oxygen concentration of the internal environment of the reactor chamber 9 in real time. This allows the PLC controller 3 to intelligently control the heating block 17 to generate heat based on the reaction environment data, thereby heating the internal environment of the reactor chamber 9 to a suitable composting reaction temperature. A suitable high temperature will promote and accelerate the composting reaction. In addition, the air pump 12 can be intelligently controlled to fill the reactor chamber 9 with air to provide oxygen content in the internal environment of the reactor chamber 9. This helps the aerobic composting reaction to proceed. Furthermore, when the internal environment pressure of the reactor chamber 9 is detected to be too high due to the exhaust gas generated by the composting reaction, the exhaust pump 13 can be started to extract the gas inside the reactor chamber 9, realizing the ventilation function and ensuring the safety and stability of the internal environment of the reactor chamber 9. In actual aerobic composting, aerobic bacteria decompose organic matter under sufficient oxygen conditions to produce carbon dioxide and water. This method has a higher temperature and a shorter cycle, which can more thoroughly decompose organic matter and has a better composting effect.

[0032] Both the screw feeder 5 for high carbon content materials and the screw feeder 7 for high nitrogen content materials are equipped with a guide pipe 15 that is connected to the carbon-nitrogen ratio adjustment reserved shell 4 at their output ends.

[0033] A hollow bearing 8 is provided between the middle position of the inner plate 20 away from the stepper motor 19 and the carbon-nitrogen ratio adjustment reserved shell 4;

[0034] A telescopic cylinder 22 is fixed on the carbon-nitrogen ratio adjustment reserved shell 4 on one side of the hollow bearing 8;

[0035] The top of the reaction chamber 9 is provided with an upper pig manure inlet 11, and a sealing plug is threaded onto the upper pig manure inlet 11;

[0036] The bottom of the reaction chamber 9 is fitted with a discharge cover plate 2 by screws;

[0037] Both the intake pump 12 and the exhaust pump 13 are connected to the interior of the reaction chamber 9, and both the intake pump 12 and the exhaust pump 13 are equipped with flanges.

[0038] In this embodiment, when in use: With an external power supply, the user can feed pig manure (obtained from the fermentation of chicken manure or other manure materials for composting) into the reactor chamber 9 through the upper pig manure inlet 11. The user then inputs the pre-measured carbon-to-nitrogen ratio data of the pig manure raw material into the PLC controller 3 and sets the ideal carbon-to-nitrogen ratio data for the reaction. After calculation, the PLC controller 3 can control the second servo motor 16 on the corresponding high-carbon-content material screw feeder 5 or high-nitrogen-content material screw feeder 7 to automatically feed the material stored in the pre-feeding trough 10 at the input end into the reactor when the carbon or nitrogen content is low. Inside the carbon-nitrogen ratio adjustment recess 4 at the top of chamber 9, the inner sealing plate 20, equipped with a pressure sensor 21, monitors the mass of the carbon-nitrogen ratio adjustment material and sends the measurement data to the PLC controller 3. When the corresponding mass is reached, the stepper motor 19 is activated to rotate the inner sealing plate 20 to complete the feeding process before resetting. This quantitative carbon-nitrogen ratio adjustment material is then fed into the reaction chamber 9 and mixed with the pig manure product. This allows the device to automatically and intelligently control the pig manure product. Adjusting the carbon-nitrogen ratio can affect the composting speed and the stability of organic matter, thereby improving the humic acid content. The reactor has good humus and nitrogen retention effects. Meanwhile, the temperature sensor 14, pressure gauge 23, and oxygen concentration monitor 24 monitor the temperature, pressure, and oxygen concentration inside the reactor chamber 9 in real time. This allows the PLC controller 3 to intelligently control the heating block 17 to generate heat based on the reaction environment data, thus heating the environment inside the reactor chamber 9 to a suitable composting reaction temperature. A suitable high temperature promotes and accelerates the composting reaction. Furthermore, the air pump 12 can be intelligently controlled to supply air to the reactor chamber 9, ensuring sufficient oxygen levels within the chamber. This facilitates aerobic composting and allows for monitoring of the internal environment of the reactor chamber 9. When the internal air pressure is too high due to the waste gas generated during the composting reaction, the exhaust pump 13 is started to extract the gas inside the reaction chamber 9, thereby achieving the ventilation function and ensuring the safety and stability of the internal environment of the reaction chamber 9. In actual aerobic composting, aerobic bacteria are used to decompose organic matter under sufficient oxygen conditions, producing carbon dioxide and water. This method has a higher temperature and a shorter cycle, which can more thoroughly decompose organic matter and has a better composting effect. In addition, starting the first servo motor 6 on the reaction chamber 9 can drive the mixing shaft 18 to rotate inside the reaction chamber 9, which can achieve stirring and mixing of materials and improve the uniformity of the composting reaction.

Claims

1. A high-efficiency aerobic composting reactor for pig manure, characterized in that, The system includes a frame (1), inside which a reaction chamber (9) is welded. A high-carbon content material screw feeder (5) and a high-nitrogen content material screw feeder (7) are respectively fixed on the frame (1) at both ends of the reaction chamber (9). A second servo motor (16) is installed on the top of both the high-carbon content material screw feeder (5) and the high-nitrogen content material screw feeder (7). A PLC controller (3) is installed on one side of the reaction chamber (9). Both ends of the top of the reaction chamber (9) are provided with carbon-nitrogen ratio adjustment pre-reserved shells (4) that match the high-carbon content material screw feeder (5) and the high-nitrogen content material screw feeder (7). A carbon-nitrogen ratio adjustment pre-reserved shell (4) is installed on one side of each shell. The reactor is equipped with a stepper motor (19). The inner part of the carbon-nitrogen ratio adjustment housing (4) at the output end of the stepper motor (19) is connected to a sealing inner plate (20). The inner part of the sealing inner plate (20) is equipped with a pressure sensor (21). The top of the reactor is uniformly equipped with a first servo motor (6). The output end of the first servo motor (6) is connected to a mixing shaft (18). The mixing shaft (18) is equipped with a heating block (17). On the side of the reactor away from the PLC controller (3), an air intake pump (12) and an exhaust pump (13) are installed in sequence. The top of the reactor is equipped with a temperature sensor (14), a pressure gauge (23), and an oxygen concentration monitor (24).

2. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: The input ends of the screw feeder (5) for high carbon content materials and the screw feeder (7) for high nitrogen content materials are both equipped with pre-feeding troughs (10).

3. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: The output ends of both the high carbon content material screw feeder (5) and the high nitrogen content material screw feeder (7) are equipped with a guide pipe (15) that is connected to the carbon-nitrogen ratio adjustment reserved shell (4).

4. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: A hollow bearing (8) is provided between the middle position of the inner sealing plate (20) away from the stepper motor (19) and the carbon-nitrogen ratio adjustment reserved shell (4).

5. The high-efficiency aerobic composting reactor for pig manure according to claim 4, characterized in that: A telescopic cylinder (22) is fixed on the carbon-nitrogen ratio adjustment reserved shell (4) on one side of the hollow bearing (8).

6. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: The top of the reaction chamber (9) is provided with an upper pig manure inlet (11), and a sealing plug is threaded onto the upper pig manure inlet (11).

7. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: The bottom of the reaction chamber (9) is fitted with a discharge cover plate (2) by screws.

8. The high-efficiency aerobic composting reactor for pig manure according to claim 1, characterized in that: Both the intake pump (12) and the exhaust pump (13) are connected to the interior of the reaction chamber (9), and both the intake pump (12) and the exhaust pump (13) are equipped with flanges.

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