Organic fertilizer aeration device

Abstract

The invention provides an organic fertilizer aeration device, and belongs to the technical field of organic fertilizer fermentation, the organic fertilizer aeration device comprises a tank body, a control unit, and an aeration unit, an integrated signal acquisition unit and an auxiliary heating unit which are electrically connected with the control unit, the aeration unit comprises a frequency conversion fan and an aeration pipe communicated with the frequency conversion fan, the variable-frequency fan is arranged outside the tank body; the aerator pipe is arranged at the bottom of the tank body; the auxiliary heating unit is arranged at the top of the tank body and comprises a guide walking unit, a film covering support and film cloth, and the guide walking unit is arranged at the tops of walls on the two sides of the width direction of the tank body and comprises a guide groove, walking wheels driven by a motor and a support mounting base arranged on the walking wheels; a plurality of through holes are uniformly formed in the membrane cloth, the through holes are adjacent to the covered stent, the integrated signal acquisition unit is fixed with the covered stent, and the sensing end of the integrated signal acquisition unit extends into the groove body from the through holes. The tank type organic fertilizer fermentation device is simple in structure, low in cost, good in organic fertilizer fermentation effect and suitable for popularization and application in tank type organic fertilizer fermentation.

Description

Technical Field

[0001] This invention belongs to the field of organic fertilizer fermentation technology, and relates to an aeration device, particularly an organic fertilizer aeration device. Background Technology

[0002] During the aeration process of composting organic fertilizer, continuous aeration is necessary to ensure that aerobic bacteria within the fertilizer fully decompose the organic matter. Existing trough composting methods, in addition to laying aeration pipes at the bottom of the compost trough, also utilize a turning machine to periodically turn the organic fertilizer to cool it or increase aeration. However, current technology relies on manual control of organic fertilizer aeration, requiring regular manual monitoring of the fermentation process and adjustment of the aeration rate by the blowers based on on-site observations. This is not only time-consuming and labor-intensive but also lacks real-time adaptability, resulting in a certain lag and affecting the fermentation process. During aeration, as fermentation progresses, the temperature of the compost rises, and the moisture within the organic fertilizer gradually evaporates. When the moisture content falls below a certain range, it inhibits the metabolism and growth of microorganisms within the compost. Furthermore, when using compost troughs, the temperature rise of the organic fertilizer depends on its own fermentation process; in cold seasons, the temperature rise is slow, resulting in low fermentation efficiency.

[0003] Therefore, it is necessary to provide a device that can automatically adjust the aeration rate according to the real-time situation of organic fertilizer and promote efficient aeration for organic fertilizer fermentation. Summary of the Invention

[0004] The purpose of this invention is to provide an organic fertilizer aeration device to solve the technical problems of low automation, reliance on manual labor, and low fermentation efficiency of organic fertilizer in the existing trough composting fermentation method.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: An organic fertilizer aeration device includes a tank, a control unit, and an aeration unit, an integrated signal acquisition unit, and an auxiliary heating unit electrically connected to the control unit. The control unit includes a PLC controller, and the aeration unit includes a variable frequency fan and an aeration pipe connected to the variable frequency fan. The variable frequency fan is installed outside the tank, and the aeration pipe is installed at the bottom of the tank. The auxiliary heating unit is located at the top of the tank and includes a guide walking unit, a film covering bracket and a film cloth. The guide walking unit is located at the top of the two side walls in the width direction of the tank and includes a guide groove, a motor-driven walking wheel, and a bracket mounting seat on the walking wheel. The guide groove is the same length as the tank. The lower end of the film covering bracket is fixed to the bracket mounting seat. There are multiple sets of walking wheels and film covering brackets. The film cloth extends from the outside of the first film covering bracket to the outside of the last film covering bracket. The membrane fabric has multiple through holes that can pass through the integrated signal acquisition unit. The through holes are adjacent to the membrane support. The integrated signal acquisition unit is fixed to the membrane support. The sensing end of the integrated signal acquisition unit extends into the groove through the through holes.

[0006] The integrated signal acquisition unit includes a mounting sleeve and a sensor assembly. The mounting sleeve is fixed to the film-covering bracket and corresponds to the through hole of the film. The signal receiving end of the sensor assembly is located outside the film-covering bracket and is electrically connected to the control unit. The sensing end extends into the mounting sleeve.

[0007] The sensor kit includes a retractable temperature and humidity sensor, an ammonia sensor, and a hydrogen sulfide sensor.

[0008] It also includes a humidity auxiliary adjustment unit, which includes a liquid collection tank, a circulation pump and spray heads. The liquid collection tank is located below the outer side of the two walls on both sides of the tank in the width direction. The extension end of the membrane cloth extends from the film covering bracket to the top of the liquid collection tank. The circulation pump is located in the liquid collection tank. Multiple spray heads are provided on each film covering bracket, and multiple spray heads are connected to the circulation pump through connecting pipes.

[0009] The bottom of the tank is uniformly provided with pipe grooves for laying aeration pipes. The width of the pipe grooves is greater than the diameter of the aeration pipes, and the height is higher than the plane where the aeration pipes are located. The lower part of the two side walls in the width direction of the tank is respectively provided with through holes corresponding to the pipe grooves and connected to them.

[0010] The bottom of the pipe trench is also provided with a liquid guiding groove. The width of the liquid guiding groove is less than half the diameter of the aeration pipe. The lower part of the two side walls in the width direction of the trench is provided with through holes corresponding to the liquid guiding grooves, which are connected to the liquid collection grooves located on the outer side in the width direction of the trench.

[0011] The beneficial effects of this invention are as follows: By providing an organic fertilizer aeration device, and by setting an auxiliary heating unit, the device can control the membrane covering the compost to provide auxiliary insulation for the organic fertilizer in the tank during the early stages of composting and in cold weather, thereby helping to raise the internal temperature of the organic fertilizer and enabling the compost to quickly rise to the optimal temperature range for organic fertilizer fermentation and maintain it for the required time. By setting an integrated signal acquisition unit that can be inserted into the organic fertilizer pile, and inserting multiple units into the organic fertilizer in the tank, the device can collect information such as temperature, humidity, ammonia content, and hydrogen sulfide content at different locations inside the organic fertilizer and send the signals to a PLC controller. The PLC controller, according to a preset program, controls the auxiliary heating unit to continue covering or prompts the staff to remove the integrated signal acquisition unit and open the membrane to cool the compost, adjusts the working frequency of the variable frequency fan to adjust the aeration rate, or uses the collected condensate to spray back onto the compost to help adjust the compost humidity.

[0012] The technical solution provided by this invention has a simple structure and low cost. It can adjust the aeration unit, auxiliary heating unit and humidity auxiliary adjustment unit in a timely manner according to the collected information, without any lag. It has a good effect on promoting the fermentation of organic fertilizer and is suitable for widespread application in trough-type organic fertilizer fermentation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 for Figure 1 The left view; Figure 3 This is a top view of the membrane fabric of the present invention; Figure 4 This is a top view of the tank in this invention.

[0014] The markings in the diagram are as follows: 1. Tank body, 2. Control unit, 3. Aeration pipe, 4. Membrane support, 5. Membrane cloth, 6. Guide channel, 7. Traveling wheel, 8. Support mounting base, 9. Through hole, 10. Mounting sleeve, 11. Sensor assembly, 12. Liquid collection tank, 13. Circulation pump, 14. Spray head, 15. Pipeline channel, 16. Liquid guiding channel. Detailed Implementation

[0015] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0016] like Figures 1 to 4As shown, this invention provides an organic fertilizer aeration device, which includes a tank 1, a control unit 2, and an aeration unit, an integrated signal acquisition unit, and an auxiliary heating unit electrically connected to the control unit 2. These are used for aeration and oxygen supply to the organic fertilizer in the tank, acquiring temperature, humidity, ammonia content, and hydrogen sulfide content within the organic fertilizer pile, and assisting in heating the organic fertilizer, respectively. To achieve signal acquisition and control of the aforementioned units, the control unit 2 in this embodiment includes a PLC controller. The aeration unit includes multiple sets of variable frequency fans and aeration pipes 3 connected to the variable frequency fans. The variable frequency fans are located outside the tank 1, and the aeration pipes 3 are located at the bottom of the tank 1. By using the PLC controller to control the operating frequency of the variable frequency fans at different locations and to control the amount of air aerated into the organic fertilizer by different aeration pipes 3, more precise control of the organic fertilizer at different locations can be achieved. This provides a sufficiently oxygenated fermentation environment for the organic fertilizer, ensuring aerobic fermentation by aerobic bacteria and inhibiting anaerobic fermentation by anaerobic bacteria, effectively reducing the production of ammonia and hydrogen sulfide, and also reducing the power consumption of the variable frequency fans.

[0017] In addition, an auxiliary heating unit is installed at the top of the tank 1 to cover the organic fertilizer inside the tank 1, reduce heat loss, shorten the rate at which the temperature rises to the optimal temperature range during organic fertilizer fermentation, and maintain it. Figure 1 , Figure 2 As shown, it specifically includes a guiding and walking unit, a film-coating bracket 4, and a film sheet 5. The guiding and walking unit is located at the top of the walls on both sides of the trough 1 in the width direction, and includes a guide groove 6, motor-driven walking wheels 7, and bracket mounting seats 8 mounted on the walking wheels 7. The guide groove 6 has the same length as the trough 1. The lower end of the film-coating bracket 4 is fixed to the bracket mounting seat 8. There are multiple sets of walking wheels 7 and film-coating brackets 4. The film sheet 5 extends from the outside of the first film-coating bracket 4 to the outside of the last film-coating bracket 4 and is fixed to the film-coating bracket 4. A PLC controller is electrically connected to the motor-driven walking wheels 7, and the PLC controller controls the walking wheels 7 to move along the guide groove 6 to open or retract the film sheet 5.

[0018] In order to collect information from organic fertilizer, such as Figure 3 As shown, in this embodiment, the membrane 5 is uniformly provided with multiple through holes 9 through which the integrated signal acquisition unit can pass. The through holes 9 are adjacent to the membrane support 4. The integrated signal acquisition unit is fixed to the membrane support 4. The sensing end of the integrated signal acquisition unit extends into the tank 1 through the through hole 9 to collect the signal in the organic fertilizer pile and send the signal to the PLC controller of the control unit 2. The PLC controller issues instructions to the corresponding unit according to the collected signal.

[0019] like Figure 2As shown, the integrated signal acquisition unit in this embodiment includes an installation sleeve 10 and a sensor assembly 11. The installation sleeve 10 is fixed to the film-covering support 4 and corresponds to the through hole 9 of the film 5, facilitating the insertion of the sensor assembly 11 into the organic fertilizer. The signal receiving end of the sensor assembly 11 is located outside the film-covering support 4 and electrically connected to the control unit 2. The sensing end extends into the installation sleeve 10 and is inserted into the organic fertilizer pile. In this embodiment, to obtain data related to fermentation, the sensor assembly 11 includes a retractable temperature and humidity sensor, an ammonia sensor, and a hydrogen sulfide sensor. To obtain relevant data at different positions and depths of the organic fertilizer, and to more specifically adjust the operating frequency of adjacent variable frequency fans, workers can insert different sensors into the organic fertilizer at different depths and angles and adjust them themselves. When it is necessary to adjust the insertion angle of the sensor, the angle of the installation sleeve 10 relative to the film-covering support 4 can be adjusted.

[0020] In this embodiment, the control unit 2 is also equipped with an alarm mechanism electrically connected to the PLC controller. When the temperature or humidity inside the organic fertilizer pile is detected to be too high, the PLC controller controls the alarm mechanism to sound an alarm, reminding the staff to remove the sensor sleeve 11. After the staff removes the sensor sleeve 11, the guide walking unit is controlled to move and the membrane cloth 5 is retracted.

[0021] Furthermore, the organic fertilizer aeration device in this embodiment also includes a humidity auxiliary adjustment unit, which includes a liquid collection tank 12, a circulation pump 13, and a spray head 14, such as... Figure 1 , Figure 2 , Figure 4 As shown, specifically, the collection tank 12 is laid along the length of the tank body 1 below the outer sides of the two walls in the width direction of the tank body 1. The extended end of the membrane cloth 5 extends from the membrane support 4 to the top of the collection tank 12, ensuring that the condensate on the membrane cloth 5 can drip down along the edge of the membrane cloth 5 into the collection tank 12 for storage and use when the organic fertilizer needs humidity adjustment. Collecting the condensate can not only recover the cooling water, but also recover the microorganisms and enzymes in the condensate. After being reintroduced into the organic fertilizer, it can accelerate the fermentation process. The circulation pump 13 is set in the collection tank 12 to pump the condensate collected in the collection tank 12 to the spray head 14. Multiple spray heads 14 are evenly arranged on each membrane support 4. Multiple spray heads 14 are connected to the circulation pump 13 through connecting pipes to spray the condensate back to the organic fertilizer.

[0022] By setting up a humidity-assisted adjustment unit, when the retractable temperature and humidity sensor detects that the moisture content in the compost is below 40% in the later stage of organic fertilizer fermentation, the PLC controls the circulation pump 13 to start, spraying condensate into the compost to help regulate the humidity of the compost, providing the water needed for the metabolism of microorganisms in the organic fertilizer, and ensuring efficient fermentation.

[0023] Furthermore, such as Figure 4 As shown, in order to prevent the aeration pipe 3 from being laid, the bottom of the tank 1 is evenly provided with pipe grooves 15 for laying the aeration pipe 3. In order to prevent the transfer vehicle from crushing the aeration pipe 3 when piling organic fertilizer into the tank 1, the width of the pipe groove 15 is greater than the diameter of the aeration pipe 3 and the height is higher than the plane where the aeration pipe 3 is located. In order to connect with the variable frequency fan, the lower part of the two side walls in the width direction of the tank 1 is provided with through holes 9 corresponding to the pipe groove 15 and connected to it.

[0024] Based on the existing pipe trough 15, to prevent the leachate from the organic fertilizer from soaking or submerging the aeration pipe 3 for an extended period when the humidity is too high, thus affecting aeration, a liquid guiding trough 16 is also provided at the bottom of the pipe trough 15 in this embodiment. The width of the liquid guiding trough 16 is less than half the diameter of the aeration pipe 3. This prevents the aeration pipe 3 from falling into the liquid guiding trough 16 and allows the leachate that seeps into the pipe trough 15 to be discharged, preventing the aeration pipe 3 from being submerged. For the recycling of the leachate, in this embodiment, through holes 9 corresponding to the liquid guiding trough 16 are respectively provided on the lower part of both side walls in the width direction of the tank body 1, communicating with the collection tank 12 located on the outer side of the tank body 1 in the width direction. The leachate flows into the collection tank 12 through the pipe trough 15 and the liquid guiding trough 16, achieving full utilization.

[0025] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An organic fertilizer aeration device, characterized in that: It includes a tank (1), a control unit (2), and an aeration unit, an integrated signal acquisition unit, and an auxiliary heating unit electrically connected to the control unit (2). The control unit (2) includes a PLC controller. The aeration unit includes a variable frequency fan and an aeration pipe (3) connected to the variable frequency fan. The variable frequency fan is located outside the tank (1), and the aeration pipe (3) is located at the bottom of the tank (1). The auxiliary heating unit is located at the top of the tank (1) and includes a guide walking unit, a film-covered bracket (4) and a membrane cloth (5). The guide walking unit is located at the top of the walls on both sides of the width direction of the tank (1) and includes a guide groove (6), a motor-driven walking wheel (7), and a bracket mounting seat (8) on the walking wheel (7). The guide groove (6) is the same length as the tank (1). The lower end of the film-covered bracket (4) is fixed to the bracket mounting seat (8). There are multiple sets of walking wheels (7) and film-covered brackets (4). The membrane cloth (5) extends from the outside of the first film-covered bracket (4) to the outside of the last film-covered bracket (4). The membrane (5) is uniformly provided with a plurality of through holes (9) through which the integrated signal acquisition unit can pass. The through holes (9) are adjacent to the membrane support (4). The integrated signal acquisition unit is fixed to the membrane support (4). The sensing end of the integrated signal acquisition unit extends into the groove (1) from the through holes (9).

2. The organic fertilizer aeration device according to claim 1, characterized in that: The integrated signal acquisition unit includes an installation sleeve (10) and a sensor assembly (11). The installation sleeve (10) is fixed to the film support (4) and corresponds to the through hole (9) of the film cloth (5). The signal receiving end of the sensor assembly (11) is located outside the film support (4) and electrically connected to the control unit (2). The sensing end extends into the installation sleeve (10).

3. The organic fertilizer aeration device according to claim 2, characterized in that: The sensor kit (11) includes a retractable temperature and humidity sensor, an ammonia sensor, and a hydrogen sulfide sensor.

4. An organic fertilizer aeration device according to claim 1, characterized in that: It also includes a humidity auxiliary adjustment unit, which includes a liquid collection tank (12), a circulation pump (13) and a spray head (14). The liquid collection tank (12) is located below the outer side of the two walls on both sides of the width direction of the tank body (1). The extension end of the membrane cloth (5) extends from the membrane support (4) to the top of the liquid collection tank (12). The circulation pump (13) is located in the liquid collection tank (12). Multiple spray heads (14) are provided on each membrane support (4). Multiple spray heads (14) are connected to the circulation pump (13) through connecting pipes.

5. An organic fertilizer aeration device according to claim 4, characterized in that: The bottom of the tank (1) is uniformly provided with pipe grooves (15) for laying aeration pipes (3). The width of the pipe grooves (15) is greater than the diameter of the aeration pipes (3) and the height is higher than the plane where the aeration pipes (3) are located. The lower part of the two side walls of the tank (1) in the width direction is respectively provided with through holes (9) corresponding to the pipe grooves (15) and connected to them.

6. An organic fertilizer aeration device according to claim 5, characterized in that: The bottom of the pipe trough (15) is also provided with a liquid guiding trough (16). The width of the liquid guiding trough (16) is less than half the diameter of the aeration pipe (3). The lower part of the two side walls of the tank body (1) in the width direction is provided with through holes (9) corresponding to the liquid guiding trough (16) and connected to the liquid collection trough (12) located on the outside of the tank body (1) in the width direction.

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