Ammonia gas intelligent emission reduction device and method used in compost turning process

Abstract

The invention relates to an intelligent ammonia gas emission reduction device and method used in the compost turning process, and belongs to the field of agricultural machinery, the device comprises an ammonia gas absorption device, a first ammonia gas sampling detection mechanism and a control system, the ammonia gas absorption device is used for absorbing ammonia gas; the first ammonia gas sampling detection mechanism is used for collecting the content of ammonia gas volatilized from the lower part of the bottom layer spraying net rack in real time and sending the actual condition of the content of the ammonia gas to a controller of the control system; the controller is used for controlling the flow rate of the first variable-frequency water pump according to the collected content of ammonia gas below the bottom-layer spraying net rack, and acid liquor stored in the acid liquor storage tank is pumped to a plurality of spraying branches of the bottom-layer spraying net rack through the first liquor inlet pipe according to different flows; and then electromagnetic valves on a plurality of spraying branches of the bottom-layer spraying net rack are controlled, the spraying conditions of a plurality of spraying heads are adjusted, and sprayed acid liquor meets and neutralizes ammonia gas volatilized from compost, so that the ammonia gas is absorbed.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to an intelligent ammonia emission reduction device and method for composting and turning processes. Background Technology

[0002] During the composting process, high temperatures and microbial activity cause a large amount of ammonia to volatilize. As the primary odorous gas, ammonia volatilizes into the air, which not only pollutes the environment but also causes ammonia concentrations to rise inside and around the composting plant, potentially leading to respiratory diseases in humans and animals.

[0003] However, the ammonia emission reduction devices used in the current composting and turning process cannot adjust the amount of acid spraying to match the actual operating conditions of volatilized ammonia. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to provide an intelligent ammonia emission reduction device and method for the composting turning process, which solves the problem that current ammonia emission reduction devices in the composting turning process cannot adjust the amount of acid spraying to adapt to the actual working conditions of volatilized ammonia.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention discloses an intelligent ammonia emission reduction device for use in the composting turning process, comprising: An ammonia absorption device includes an acid spraying system installed on a compost turner. The acid spraying system comprises a bottom spraying system, which includes an acid storage tank, a first variable frequency water pump, a first inlet pipe, and a bottom spraying mesh frame. The bottom spraying mesh frame is equipped with the first variable frequency water pump. The inlet of the first inlet pipe is connected to the acid storage tank via the first variable frequency water pump. Multiple spraying branches are provided on the bottom spraying mesh frame, with the inlet of each branch connected to the outlet of the first inlet pipe. Multiple nozzles are spaced apart on the bottom surface of each branch. The acid storage tank stores acid. During composting and turning, the first variable frequency water pump is activated, and the acid stored in the storage tank is drawn through the first inlet pipe to the multiple spraying branches of the bottom spraying mesh frame, and finally sprayed out through the multiple nozzles. The acid encounters and neutralizes the ammonia gas volatilized from the compost, thus absorbing the ammonia gas. A first ammonia sampling and detection mechanism is configured on the bottom spray net frame. Each first ammonia sampling and detection mechanism includes multiple first samplers, each first sampler is equipped with a first air pump, and the first air pump is equipped with a first ammonia sensor. Each first sampler is located below the bottom spray net frame. Each first sampler is connected to a first ammonia sensor through the first air pump. The first sampler is used to collect ammonia gas volatilized from the compost from bottom to top. The first ammonia sensor is used to detect the ammonia content collected by the first sampler. The control system includes a controller, a first variable frequency water pump, a first air pump, a first ammonia sensor, and several solenoid valves. Each spray branch of the bottom spray net frame is equipped with a solenoid valve. The first variable frequency water pump, the first air pump, and the solenoid valves on the multiple spray branches of the bottom spray net frame are all connected to the controller via wires. The first ammonia sampling and detection mechanism is used to collect the ammonia content volatilized from below the bottom spray net frame in real time and send the actual ammonia content to the controller of the control system. The controller is used to control the flow rate of the first variable frequency water pump according to the ammonia content collected below the bottom spray net frame, so that the acid stored in the acid storage tank is drawn into the multiple spray branches of the bottom spray net frame through the first inlet pipe at different flow rates; then, it controls the solenoid valves on the multiple spray branches of the bottom spray net frame to adjust the spraying of multiple nozzles of the bottom spray system, so that the sprayed acid meets and neutralizes the ammonia volatilized from the compost, and the ammonia is absorbed.

[0007] Preferably, the bottom spray mesh frame is provided with five spray branches, which are arranged parallel to each other on the bottom spray mesh frame.

[0008] Furthermore, the acid spraying system includes an upper spraying system, which includes an upper spraying support frame. The upper spraying support frame is disposed above the lower spraying mesh frame and is mounted on the turner. The upper spray support is equipped with a second variable frequency water pump, which is equipped with a second inlet pipe. The inlet of the second inlet pipe is connected to the acid storage tank through the second variable frequency water pump. The upper spray support is provided with two spray branches. The inlet of each spray branch is connected to the outlet of the second liquid inlet pipe, and multiple nozzles are spaced apart on the bottom surface of each spray branch.

[0009] Specifically, each set of first ammonia sampling and testing equipment includes three first samplers, which are evenly spaced 30-40cm below the bottom spray net frame.

[0010] Furthermore, each spray branch of the upper spray support is equipped with a solenoid valve; the upper spray support is equipped with a second ammonia sampling and detection mechanism, each second ammonia sampling and detection mechanism including multiple second samplers, each second sampler equipped with a second air pump, and each second air pump equipped with a second ammonia sensor; each second sampler is located between the upper spray support and the lower spray mesh; each second sampler is connected to a second ammonia sensor through a second air pump; wherein, the first sampler is used to collect ammonia gas that crosses the lower spray mesh and evaporates upwards; the second ammonia sensor is used to detect the ammonia content collected by the second sampler.

[0011] Specifically, each set of second ammonia sampling and testing mechanisms includes three second samplers, which are evenly spaced 20cm below the upper spray support.

[0012] Specifically, the second variable frequency water pump, the second air pump, the second ammonia sensor, and the solenoid valves on each spray branch of the upper spray bracket are all connected to the controller via wires.

[0013] Furthermore, a third ammonia sampling and detection mechanism is configured above the upper spray support. This mechanism includes three third samplers, each equipped with a third air pump and a third ammonia sensor. The three samplers are evenly spaced 20-40 cm above the upper spray support. Each sampler is connected to a third ammonia sensor via a third air pump. The third samplers are used to collect ammonia gas that crosses the upper spray support and evaporates upwards. The third ammonia sensor is used to detect the ammonia content collected by the third samplers.

[0014] Furthermore, the third gas pump and the third ammonia sensor are both connected to the controller via wires.

[0015] Secondly, this invention discloses an intelligent ammonia emission reduction method for the composting turning process, employing the aforementioned intelligent ammonia emission reduction device for the composting turning process. The method includes the following steps: Step A: The first ammonia sensor collects data at a point 30-40cm below the bottom spray net frame; The controller controls the flow rate of the first variable frequency water pump based on the ammonia content collected below the bottom spray net frame. The acid stored in the acid storage tank is drawn into multiple spray branches of the bottom spray net frame through the first inlet pipe at different flow rates. Then, the controller controls the solenoid valves on the multiple spray branches of the bottom spray net frame to adjust the spraying of multiple nozzles in the bottom spray system. The sprayed acid meets and neutralizes the ammonia volatilized from the compost, so that the ammonia is absorbed. Step B: The second ammonia sensor collects the ammonia content between the upper spray support and the lower spray mesh, and sends the collected ammonia content to the controller. The controller controls the flow rate of the second variable frequency water pump based on the ammonia content collected between the upper spray support and the lower spray mesh. The acid stored in the acid storage tank is drawn into the two spray branches of the upper spray support through the second inlet pipe at different flow rates. Then, the controller controls the solenoid valves on the two spray branches of the upper spray support to adjust the spraying of multiple nozzles in the upper spray system. The sprayed acid meets and neutralizes the ammonia that has evaporated beyond the lower spray mesh but has not reached the upper spray support, so that the ammonia is absorbed. Step C: The third ammonia sensor collects the ammonia content at a distance of 20-40cm above the upper spray support, and judges the absorption effect of the volatilized ammonia based on the collected ammonia content.

[0016] Furthermore, the intelligent ammonia emission reduction device used in the composting turning process also includes a spray rotation mechanism, which is set between the bottom spray net frame and the upper spray support. The spray rotation mechanism includes a motor, a rotating shaft, multiple arc-shaped gear racks and pinions, and a transmission support. The transmission support is mounted on the turning machine; The upper spraying bracket is mounted on the transmission bracket; The motor is mounted on the transmission bracket; The output shaft of the motor is fixedly connected to the rotating shaft; The rotating shaft is provided with multiple gears at intervals, and the inner wall of each arc-shaped gear rack is provided with gear teeth; The bottom end of each arc-shaped gear rack is fixed to the bottom spray net frame, and multiple teeth on the rotating shaft mesh with the teeth on the inner wall of each arc-shaped gear rack; When the motor starts, the output shaft of the motor drives the rotating shaft to rotate. Multiple gear teeth on the rotating shaft drive multiple arc-shaped gear racks to rotate, thereby rotating the bottom spray net frame, thus realizing the adjustment of the height and angle of the nozzles on the spray branches of the bottom spray net frame. In step A and / or step B, when it is necessary to adjust the height and angle of the nozzles on the spray branches of the bottom spray mesh frame, the controller controls the motor to start, the output shaft of the motor drives the rotating shaft to rotate, and multiple gear teeth on the rotating shaft drive multiple arc-shaped gear racks to rotate, thereby rotating the bottom spray mesh frame, thereby realizing the adjustment of the height and angle of the nozzles on the spray branches of the bottom spray mesh frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (I) This invention discloses an intelligent ammonia emission reduction device for composting turning and turning processes, comprising an ammonia absorption device, a first ammonia sampling and detection mechanism, and a control system. The ammonia absorption device includes an acid spraying system installed on the compost turning machine. The acid spraying system includes a bottom spraying system, which comprises an acid storage tank, a first variable frequency water pump, a first inlet pipe, and a bottom spraying mesh frame. The bottom spraying mesh frame is equipped with a first variable frequency water pump. The inlet of the first inlet pipe is connected to the first variable frequency water pump. The acid storage tank is connected to the ground floor spray net frame; multiple spray branches are provided on the ground floor spray net frame, and the inlet of each spray branch is connected to the outlet of the first liquid inlet pipe. Multiple nozzles are spaced apart on the bottom surface of each spray branch; the acid storage tank stores acid; during the composting turning process, the first variable frequency water pump is started, and the acid stored in the acid storage tank is drawn into each spray branch of the ground floor spray net frame through the first liquid inlet pipe, and finally sprayed out through multiple nozzles. The acid meets and neutralizes the ammonia gas volatilized from the compost, so that the ammonia gas is absorbed. The first ammonia sampling and detection mechanism is configured on the bottom spray net frame. Each first ammonia sampling and detection mechanism includes multiple first samplers, each first sampler is equipped with a first air pump, and the first air pump is equipped with a first ammonia sensor. Each first sampler is located below the bottom spray net frame. Each first sampler is connected to a first ammonia sensor via a first air pump. The first sampler is used to collect ammonia gas volatilized from the compost from bottom to top. The first ammonia sensor is used to detect the ammonia content collected by the first sampler. The control system includes a controller, a first variable frequency water pump, a first air pump, and several solenoid valves. Each spray branch of the bottom spray net frame is equipped with a solenoid valve. The first air pump and the solenoid valves on multiple spray branches of the bottom spray net frame are all connected to the controller. The first ammonia sampling and detection mechanism is used to collect the ammonia content volatilized below the bottom spray net frame in real time and send the actual ammonia content to the controller of the control system. The controller, based on the collected ammonia content below the bottom spray net frame, controls the flow rate of the first variable frequency water pump, drawing acid stored in the acid storage tank through the first inlet pipe to multiple spray branches of the bottom spray net frame at different flow rates. It then controls the solenoid valves on the multiple spray branches of the bottom spray net frame to adjust the spray pattern of multiple nozzles. The sprayed acid meets and neutralizes the ammonia volatilized from the compost, thus absorbing the ammonia. This invention discloses an intelligent ammonia emission reduction device for the composting turning process, which can adjust the acid spray volume according to the actual ammonia volatilization conditions, improving the intelligence level of ammonia absorption during composting turning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the volatile ammonia absorption device for the composting turning process provided in Embodiment 1 of the present invention, wherein the acid spraying system is attached to the turning machine. Figure 2 yes Figure 1 Side view; Figure 3 This is a schematic diagram of the structure of the volatile ammonia absorption device with an added spray rotation mechanism provided in Embodiment 1 of the present invention, wherein the spray rotation mechanism is attached to the turning machine; Figure 4 yes Figure 3 A side view of the bottom spray grid frame during its rotation process; Figure 5 This is a schematic diagram of the underlying spray system provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the control system provided in Embodiment 1 of the present invention.

[0019] Attached image labeling: 100 - Turning machine; 1-Acid spraying system, 11-Acid storage tank, 12-First variable frequency water pump, 13-First inlet pipe, 14-Bottom spraying mesh frame, 15-Sprayer head, 16-Upper spraying support; 20 - Controller; 21 - First sampler; 22 - Second sampler; 23 - Third sampler; 24 - Solenoid valve 24; 3-Spraying rotation mechanism, 31-Motor, 32-Rotating shaft, 33-Arc gear rack, 34-Transmission bracket. Detailed Implementation

[0020] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0021] Example 1: An ammonia absorption device Embodiment 1 of the present invention provides an ammonia absorption device for absorbing volatilized ammonia during composting and turning. Its structure is described in detail below with reference to the accompanying drawings.

[0022] refer to Figure 1 and Figure 2 The ammonia absorption device includes an acid spraying system 1, which is installed on the turner 100.

[0023] The acid spraying system 1 includes a bottom spraying system, which includes an acid storage tank 11, a first variable frequency water pump 12, a first inlet pipe 13, and a bottom spraying mesh frame 14. The bottom spraying mesh frame 14 is equipped with a first variable frequency water pump 12. The inlet of the first inlet pipe 13 is connected to the acid storage tank 11 through the first variable frequency water pump 12. The bottom spraying mesh frame 14 is provided with multiple spraying branches. The inlet of each spraying branch is connected to the outlet of the first inlet pipe 13. Multiple nozzles 15 are spaced apart on the bottom surface of each spraying branch.

[0024] The acid storage tank 11 contains acid.

[0025] During the composting process, the first variable frequency water pump 12 is started. The acid stored in the acid storage tank 11 is drawn into multiple spray branches of the bottom spray net frame 14 through the first inlet pipe 13, and finally sprayed out through multiple nozzles 15. The acid meets and neutralizes the ammonia gas volatilized from the compost, so that the ammonia gas is absorbed.

[0026] Preferably, the bottom spray net frame 14 is provided with five spray branches, which are arranged parallel to each other on the bottom spray net frame 14.

[0027] To improve ammonia absorption, an upper spray support 16 is installed above the bottom spray mesh frame 14, forming a two-layer spray branch frame.

[0028] The acid spraying system 1 includes an upper spraying system, which includes an upper spraying support 16. Specifically, the upper spraying support 16 is disposed above the lower spraying net frame 14, and the upper spraying support 16 is disposed on the turner 100; The upper spray support 16 is equipped with a second variable frequency water pump, which is equipped with a second liquid inlet pipe. The inlet of the second liquid inlet pipe is connected to the acid storage tank 11 through the second variable frequency water pump. The upper spray support 16 is provided with two spray branches. The inlet of each spray branch is connected to the outlet of the second liquid inlet pipe. Multiple nozzles 15 are spaced apart on the bottom surface of each spray branch.

[0029] As is common knowledge, the distance between the upper spray support 16 and the lower spray mesh frame 14 is more than 20cm. When the second sampler 22 is set 20cm below the upper spray support 16, it is also located above the lower spray mesh frame 14.

[0030] If the ammonia gas released from the organic fertilizer evaporates too quickly during the turning and turning process, the ammonia gas will pass through the bottom spray net frame 14, and the spray branches of the upper spray support 16 can recover the ammonia gas from the bottom spray net frame 14 and return it to the organic fertilizer.

[0031] In order to achieve the adjustment of the height and angle of the nozzle 15, based on Example 1, the volatile ammonia absorption device for the composting turning process provided in Example 2 of the present invention also includes a spraying rotation mechanism 3.

[0032] refer to Figure 3 and Figure 4 The spray rotation mechanism 3 is located between the bottom spray mesh frame 14 and the upper spray support 16.

[0033] The spray rotation mechanism 3 includes a motor 31, a rotating shaft 32, multiple arc-shaped gear racks 33, and a transmission support 34. The transmission support 34 is mounted on the turning machine 100; The upper spray support 16 is mounted on the transmission support 34; The motor 31 is mounted on the transmission bracket 34; The output shaft of the motor 31 is fixedly connected to the rotating shaft 32; The rotating shaft 32 is provided with a plurality of gears at intervals, and the inner wall of each arc-shaped gear rack 33 is provided with gear teeth; The bottom end of each arc-shaped gear rack 33 is fixed to the bottom spray net frame 14, and multiple teeth on the rotating shaft 32 mesh with the teeth on the inner wall of each arc-shaped gear rack 33. When the motor 31 is started, the output shaft of the motor 31 drives the rotating shaft 32 to rotate. The multiple gear teeth on the rotating shaft 32 drive the multiple arc-shaped gear racks 33 to rotate, thereby rotating the bottom spray net frame 14, thereby realizing the adjustment of the height and angle of the spray nozzles 15 on the spray branch of the bottom spray net frame 14.

[0034] Therefore, the spraying rotation mechanism 3 can adjust the height of the acid spraying system according to the height of the compost stack, ensuring the initial interface ammonia absorption, adsorption and emission reduction effect.

[0035] Example 2: An intelligent ammonia emission reduction device for composting and turning processes Embodiment 2 of the present invention provides an intelligent ammonia emission reduction device for composting and turning process. It adds an intelligent control system to the ammonia absorption device of Embodiment 1. The control system is described in detail below with reference to the accompanying drawings.

[0036] The intelligent ammonia emission reduction device used in the composting and turning process includes: Ammonia absorption device of Example 1; A first ammonia sampling and detection mechanism is configured on the bottom spray mesh frame 14. Each first ammonia sampling and detection mechanism includes multiple first samplers 21, each first sampler 21 is equipped with a first air pump, and the first air pump is equipped with a first ammonia sensor. Each first sampler 21 is located below the bottom spray mesh frame 14. Each first sampler 21 is connected to a first ammonia sensor through the first air pump. The first sampler 21 is used to collect ammonia gas volatilized from the compost from bottom to top. The first ammonia sensor is used to detect the ammonia content collected by the first sampler 21. The control system includes a controller 20, a first variable frequency water pump 12, a first air pump, and several solenoid valves 24. Each spray branch of the bottom spray mesh frame 14 is equipped with a solenoid valve 24 to facilitate control of the spray patterns from the nozzles on the five spray branches of the bottom spray mesh frame 14. Figure 5 As shown. The first variable frequency water pump 12, the first air pump, the first ammonia sensor, and the solenoid valve 24 on each spray branch of the bottom spray mesh frame 14 are all connected to the controller 20 via wires, as shown. Figure 6 As shown.

[0037] The first ammonia sampling and detection mechanism is used to collect the content of ammonia gas volatilized from below the bottom spray net frame 14 in real time, and send the actual content of ammonia gas to the controller 20 of the control system. The controller 20 is used to control the flow rate of the first variable frequency water pump 12 according to the ammonia content collected below the bottom spray net frame 14, so that the acid stored in the acid storage tank 11 is drawn into the multiple spray branches of the bottom spray net frame 14 through the first liquid inlet pipe 13 at different flow rates; then, the controller controls the solenoid valves 24 on the multiple spray branches of the bottom spray net frame 14 to adjust the spraying of multiple nozzles 15, so that the sprayed acid meets and neutralizes the ammonia volatilized from the compost, so that the ammonia is absorbed.

[0038] When it is necessary to detect ammonia during the composting process, the detection by the first ammonia sampling and testing agency can ensure that the ammonia is absorbed.

[0039] Specifically, the first variable frequency water pump 12 is a high-pressure atomizing pump equipped with a pressure sensor. The first variable frequency water pump 12 can control the flow rate of the multiple spray branches distributed to the bottom spray mesh frame 14 by the first inlet pipe 13 through constant pressure. If the flow rate of the first-level flow rate (15mL × 10 nozzles) is 150mL, and the controller software sets the pipeline pressure to 25Kg, the controller will automatically control the frequency converter to operate at a constant pressure of 25Kg. If the flow rate of the second-level flow rate (15mL × 20 nozzles) is 300mL, and the controller software sets the pipeline pressure to 25Kg, the controller will also automatically control the frequency converter to operate at a constant pressure of 25Kg. And so on, the number of nozzles opened determines the amount of medicine output by the high-pressure pump.

[0040] Specifically, each set of first ammonia sampling and testing mechanism includes three first samplers 21, which are evenly spaced 30-40cm below the bottom spray net frame 14.

[0041] To facilitate control of the spraying of the nozzles on the two spray branches of the upper spray support 16, a solenoid valve 24 is provided on each spray branch of the upper spray support 16.

[0042] Furthermore, the upper spray support 16 is equipped with a second ammonia sampling and detection mechanism. Each second ammonia sampling and detection mechanism includes multiple second samplers 22, each second sampler 22 is equipped with a second air pump, and each second air pump is equipped with a second ammonia sensor. Each second sampler 22 is disposed between the upper spray support 16 and the lower spray mesh frame 14; Each second sampler 22 is connected to a second ammonia sensor via a second gas pump; The first sampler 21 is used to collect ammonia gas that passes over the bottom spray net frame 14 and evaporates upwards; The second ammonia sensor is used to detect the ammonia content collected by the second sampler 22.

[0043] Specifically, each set of second ammonia sampling and detection mechanism includes three second samplers 22, which are evenly spaced 20cm below the upper spray support 16.

[0044] To improve the intelligence of ammonia emission reduction, the second variable frequency water pump, the second air pump, the second ammonia sensor, and the solenoid valves 24 on each spray branch of the upper spray support 16 are all connected to the controller 20 via wires.

[0045] To determine the effectiveness of ammonia absorption, a third ammonia sampling and detection mechanism is installed above the upper spray support 16. This mechanism includes three third samplers 23, each equipped with a third air pump and a third ammonia sensor. Three third samplers 23 are evenly spaced 20-40cm above the upper spray support 16.

[0046] Each third sampler 23 is connected to a third ammonia sensor via a third gas pump; The third sampler 23 is used to collect ammonia gas that passes over the upper spray support 16 and evaporates upwards; The third ammonia sensor is used to detect the ammonia content collected by the third sampler 23.

[0047] The third gas pump and the third ammonia sensor are both connected to the controller 20 via wires.

[0048] To prevent dust from entering while ensuring the accuracy of ammonia detection, the outer surfaces of the first sampler 21, the second sampler 22, and the third sampler 23 are configured with porous inlets, and the porous inlets are fitted with filter screens.

[0049] Example 3: An intelligent ammonia emission reduction method for composting turning process Embodiment 4 of the present invention discloses an intelligent ammonia emission reduction method for composting turning process, which adopts the intelligent ammonia emission reduction device for composting turning process of Embodiment 2. The method includes the following steps: Step A: The first ammonia sensor collects data at a depth of 30-40cm below the bottom spray net frame 14; The controller controls the flow rate of the first variable frequency water pump 12 based on the ammonia content collected below the bottom spray net frame 14, and draws the acid stored in the acid storage tank 11 into multiple spray branches of the bottom spray net frame 14 through the first inlet pipe 13 at different flow rates; then it controls the solenoid valves 24 on the multiple spray branches of the bottom spray net frame 14 to adjust the spraying of multiple nozzles 15 of the bottom spray system. The sprayed acid meets and neutralizes the ammonia volatilized from the compost, so that the ammonia is absorbed. Step B: The second ammonia sensor collects the ammonia content between the upper spray support 16 and the lower spray mesh 14, and sends the collected ammonia content to the controller. The controller controls the flow rate of the second variable frequency water pump based on the ammonia content collected between the upper spray support 16 and the lower spray mesh frame 14. The acid stored in the acid storage tank 11 is drawn into the two spray branches of the upper spray support 16 through the second inlet pipe at different flow rates. Then, the controller controls the solenoid valves 24 on the two spray branches of the upper spray support 16 to adjust the spraying of the multiple nozzles 15 of the upper spray system. The sprayed acid meets and neutralizes the ammonia that has evaporated beyond the lower spray mesh frame 14 but has not reached the upper spray support 16, so that the ammonia is absorbed. Step A and step B can occur either first, followed by step B, or they can occur simultaneously.

[0050] Preferably, in step A and / or step B, when it is necessary to adjust the height and angle of the nozzles 15 on the spray branches of the bottom spray mesh frame 14, the controller controls the motor 31 to start, the output shaft of the motor 31 drives the rotating shaft 32 to rotate, and the multiple gear teeth on the rotating shaft 32 drive the multiple arc-shaped gear racks 33 to rotate, thereby rotating the bottom spray mesh frame 14, thereby realizing the adjustment of the height and angle of the nozzles 15 on the spray branches of the bottom spray mesh frame 14.

[0051] Step C: The third ammonia sensor collects the ammonia content at a distance of 20-40cm above the upper spray support 16, and judges the absorption effect of the volatilized ammonia based on the collected ammonia content.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent ammonia emission reduction device for use in the composting and turning process, characterized in that, include An ammonia absorption device includes an acid spraying system (1) installed on a turner (100); the acid spraying system (1) includes a bottom spraying system, which includes an acid storage tank (11), a first variable frequency water pump (12), a first inlet pipe (13), and a bottom spraying mesh frame (14), the bottom spraying mesh frame (14) being equipped with a first variable frequency water pump (12); the inlet of the first inlet pipe (13) is connected to the acid storage tank (11) through the first variable frequency water pump (12); the bottom spraying mesh frame (14) is equipped with a first variable frequency water pump (12); the bottom spraying mesh frame (11) is connected to the acid storage tank (11) through the ... 4) Multiple spray branches are provided on the top, and the inlet of each spray branch is connected to the outlet of the first liquid inlet pipe (13). Multiple nozzles (15) are spaced apart on the bottom surface of each spray branch. The acid storage tank (11) stores acid. During the composting turning process, the first variable frequency water pump (12) is started. The acid stored in the acid storage tank (11) is drawn into multiple spray branches of the bottom spray net frame (14) through the first liquid inlet pipe (13), and finally sprayed out through multiple nozzles (15). The acid meets and neutralizes the ammonia gas volatilized from the compost, so that the ammonia gas is absorbed. A first ammonia sampling and detection mechanism is configured on the bottom spray net frame (14). Each first ammonia sampling and detection mechanism includes multiple first samplers (21). Each first sampler (21) is equipped with a first air pump, and the first air pump is equipped with a first ammonia sensor. Each first sampler (21) is located below the bottom spray net frame (14). Each first sampler (21) is connected to a first ammonia sensor through the first air pump. The first sampler (21) is used to collect ammonia gas volatilized from the compost from bottom to top. The first ammonia sensor is used to detect the ammonia content collected by the first sampler (21). The control system includes a controller (20), a first variable frequency water pump (12), a first air pump, a first ammonia sensor, and several solenoid valves (24). Each spray branch of the bottom spray net frame (14) is provided with a solenoid valve (24). The first variable frequency water pump (12), the first air pump, and the solenoid valves (24) on the multiple spray branches of the bottom spray net frame (14) are all connected to the controller (20) by wire. The first ammonia sampling and detection mechanism is used to collect the content of ammonia gas volatilized from below the bottom spray net frame (14) in real time, and send the actual content of ammonia gas to the controller (20) of the control system. The controller (20) is used to control the flow rate of the first variable frequency water pump (12) according to the ammonia content collected below the bottom spray net frame (14), and to draw the acid stored in the acid storage tank (11) into the multiple spray branches of the bottom spray net frame (14) through the first inlet pipe (13) according to different flow rates; and then control the solenoid valves (24) on the multiple spray branches of the bottom spray net frame (14) to adjust the spraying of the multiple nozzles (15) of the bottom spray system. The sprayed acid meets and neutralizes the ammonia volatilized from the compost, so that the ammonia is absorbed.

2. The intelligent ammonia emission reduction device for composting turning process according to claim 1, characterized in that, The bottom spray net frame (14) is provided with five spray branches, which are arranged in parallel to each other on the bottom spray net frame (14).

3. The intelligent ammonia emission reduction device for composting turning process according to claim 2, characterized in that, The acid spraying system (1) includes an upper spraying system, which includes an upper spraying support (16). The upper spray support (16) is located above the lower spray net frame (14), and the upper spray support (16) is located on the turner (100); The upper spray support (16) is equipped with a second variable frequency water pump, the second variable frequency water pump is equipped with a second liquid inlet pipe, and the inlet of the second liquid inlet pipe is connected to the acid storage tank (11) through the second variable frequency water pump; The upper spray support (16) is provided with two spray branches. The inlet of each spray branch is connected to the outlet of the second liquid inlet pipe. Multiple nozzles (15) are spaced apart on the bottom surface of each spray branch.

4. The intelligent ammonia emission reduction device for composting turning process according to claim 3, characterized in that, Each set of first ammonia sampling and testing mechanism includes three first samplers (21), which are evenly spaced 30-40cm below the bottom spray net frame (14).

5. The intelligent ammonia emission reduction device for composting turning process according to claim 4, characterized in that, Each spray branch of the upper spray support (16) is equipped with a solenoid valve (24). The upper spray support (16) is equipped with a second ammonia sampling and detection mechanism. Each second ammonia sampling and detection mechanism includes multiple second samplers (22). Each second sampler (22) is equipped with a second air pump, and each second air pump is equipped with a second ammonia sensor. Each second sampler (22) is disposed between the upper spray support (16) and the lower spray mesh frame (14); Each second sampler (22) is connected to a second ammonia sensor via a second gas pump; The first sampler (21) is used to collect ammonia gas that passes over the bottom spray net frame (14) and evaporates upwards; The second ammonia sensor is used to detect the ammonia content collected by the second sampler (22).

6. The intelligent ammonia emission reduction device for composting turning process according to claim 5, characterized in that, Each set of second ammonia sampling and testing equipment includes three second samplers (22), which are evenly spaced 20cm below the upper spray support (16).

7. The intelligent ammonia emission reduction device for composting turning process according to claim 6, characterized in that, The second variable frequency water pump, the second air pump, the second ammonia sensor, and the solenoid valves (24) on each spray branch of the upper spray bracket (16) are all connected to the controller (20) via wires.

8. The intelligent ammonia emission reduction device for composting turning process according to claim 7, characterized in that, A third ammonia sampling and detection mechanism is configured above the upper spray support (16). The third ammonia sampling and detection mechanism includes three third samplers (23). Each third sampler (23) is equipped with a third air pump and each third air pump is equipped with a third ammonia sensor. The three third samplers (23) are evenly spaced 20-40cm above the upper spray support (16). Each third sampler (23) is connected to a third ammonia sensor via a third gas pump; The third sampler (23) is used to collect ammonia gas that passes over the upper spray support (16) and evaporates upwards; The third ammonia sensor is used to detect the content of ammonia collected by the third sampler (23); The third gas pump and the third ammonia sensor are both connected to the controller (20) via wires.

9. A method for intelligent ammonia emission reduction during composting and turning, employing the intelligent ammonia emission reduction device for composting and turning as described in claim 8, characterized in that, include: Step A: The first ammonia sensor collects data at a depth of 30-40cm below the bottom spray net frame (14); The controller controls the flow rate of the first variable frequency water pump (12) based on the ammonia content collected below the bottom spray net frame (14), and draws the acid stored in the acid storage tank (11) into multiple spray branches of the bottom spray net frame (14) through the first inlet pipe (13) according to different flow rates; then controls the solenoid valves (24) on the multiple spray branches of the bottom spray net frame (14) to adjust the spraying of multiple nozzles (15) of the bottom spray system. The sprayed acid meets and neutralizes the ammonia volatilized from the compost, so that the ammonia is absorbed. Step B: The second ammonia sensor collects the ammonia content between the upper spray support (16) and the lower spray mesh (14), and sends the collected ammonia content to the controller respectively; The controller controls the flow rate of the second variable frequency water pump based on the ammonia content collected between the upper spray support (16) and the lower spray mesh (14). The acid stored in the acid storage tank (11) is drawn into the two spray branches of the upper spray support (16) through the second inlet pipe according to different flow rates. Then, the controller controls the solenoid valves (24) on the two spray branches of the upper spray support (16) to adjust the spraying of multiple nozzles (15) of the upper spray system. The sprayed acid meets and neutralizes the ammonia that has evaporated beyond the lower spray mesh (14) but has not reached the upper spray support (16), so that the ammonia is absorbed. Step C: The third ammonia sensor collects the ammonia content at a distance of 20-40cm above the upper spray support (16), and judges the absorption effect of the volatilized ammonia based on the collected ammonia content.

10. The intelligent ammonia emission reduction method for composting turning process according to claim 9, characterized in that, The intelligent ammonia emission reduction device used in the composting turning process also includes a spray rotation mechanism (3), which is set between the bottom spray net frame (14) and the upper spray support (16). The spray rotation mechanism (3) includes a motor (31), a rotating shaft (32), multiple arc-shaped gear racks (33) and a transmission bracket (34). The transmission support (34) is mounted on the turner (100); The upper spray support (16) is mounted on the transmission support (34); The motor (31) is mounted on the transmission bracket (34); The output shaft of the motor (31) is fixedly connected to the rotating shaft (32); The rotating shaft (32) is provided with a plurality of gears at intervals, and the inner wall of each arc-shaped gear rack (33) is provided with gear teeth; The bottom end of each arc-shaped gear rack (33) is fixed on the bottom spray net frame (14), and multiple teeth on the rotating shaft (32) mesh with the teeth on the inner wall of each arc-shaped gear rack (33); When the motor (31) is started, the output shaft of the motor (31) drives the rotating shaft (32) to rotate. The multiple gear teeth on the rotating shaft (32) drive the multiple arc-shaped gear racks (33) to rotate, thereby rotating the bottom spray net frame (14), thereby realizing the adjustment of the height and angle of the nozzles (15) on the spray branch of the bottom spray net frame (14). In step A and / or step B, when it is necessary to adjust the height and angle of the nozzles (15) on the spray branch of the bottom spray mesh frame (14), the controller controls the motor (31) to start. The output shaft of the motor (31) drives the rotating shaft (32) to rotate. Multiple gear teeth on the rotating shaft (32) drive multiple arc-shaped gear racks (33) to rotate, thereby rotating the bottom spray mesh frame (14) and thus realizing the adjustment of the height and angle of the nozzles (15) on the spray branch of the bottom spray mesh frame (14).

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