A landfill excavation deodorization device

Abstract

This invention relates to the field of waste treatment technology and discloses a landfill excavation deodorization device, comprising a self-propelled chassis, a rotary lifting mechanism, a liquid storage module, a spray deodorization module, an environmental monitoring module, and an intelligent control module. The self-propelled chassis is a rubber-tracked mobile chassis, on which a frame is fixedly mounted, and a limiting fixing seat is provided. The rotary lifting mechanism includes an electric rotary platform mounted on the limiting fixing seat, a slewing platform mounted on the electric rotary platform, and two sets of scissor-type lifting platforms symmetrically hinged to the surface of the slewing platform. The liquid storage module includes a sealed liquid storage tank, an automatic dosing port, a quick water replenishment port, and a liquid level sensor. The sealed liquid storage tank is fixed to the frame and has a liquid outlet. This device achieves intelligent and precise treatment of odor from landfill excavation, significantly improving operational flexibility, deodorization efficiency, and ease of operation.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, specifically to a landfill excavation and deodorization device. Background Technology

[0002] In the waste management industry, landfill excavation operations (such as landfill remediation, site reuse, waste screening and transfer, etc.) are common procedures. During the excavation process, the organic matter in the landfill is decomposed by microorganisms, which releases malodorous and harmful gases, mainly hydrogen sulfide and ammonia. These gases not only pollute the atmospheric environment of the work area, but also endanger the health of on-site workers.

[0003] Currently, the deodorization methods used in landfill excavation operations are mostly traditional manual spraying of deodorizing liquid, fixed spraying devices, or simple mobile spraying equipment. These methods generally have many technical shortcomings and are difficult to adapt to the complex operational needs of landfill excavation: They have extremely low levels of intelligence, lacking real-time monitoring and intelligent control capabilities for parameters such as odor gas concentration and ambient wind speed in the work area. They rely heavily on manual experience to judge the spray volume and range, easily leading to ineffective spraying of deodorizing liquid and waste of agents. Furthermore, the spray parameters often do not match the on-site pollution conditions, resulting in poor deodorization effects and difficulty in ensuring deodorization accuracy. Operational flexibility and coverage are poor; fixed spraying devices can only deodorize specific areas and cannot be adjusted as the excavation face moves; simple mobile spraying equipment has limited spray height and angle adjustment, making it difficult to achieve 360° horizontal rotation spraying and multi-height spraying. First, the spray angle adjustment cannot adapt to the deodorization needs of landfills with different excavation depths and irregular working surfaces, resulting in deodorization blind spots. Second, the design of the deodorizing liquid storage and transportation links is unreasonable. The traditional liquid storage structure has poor sealing, which easily leads to the evaporation of the deodorizing liquid and the mixing of external impurities, affecting the deodorization effect. Moreover, the addition of chemicals and water is mostly done manually, requiring the machine to be stopped and the pipeline to be disassembled, resulting in poor operation continuity and easy interruption of deodorization operation due to liquid shortage. Third, the spray atomization effect is not good. The atomizing nozzle of traditional spray equipment has a large atomization particle size, resulting in a small contact area between the deodorizing liquid and malodorous gas, and insufficient mixing reaction. Fourth, the equipment has insufficient site adaptability. The working surface of landfill is uneven, dusty, and has flammable and explosive risks. The moving mechanism of traditional equipment has poor anti-slip properties, which easily leads to slippage and lateral movement. In addition, it lacks explosion-proof, waterproof and dustproof design, resulting in a high equipment failure rate and difficulty in long-term stable operation in the complex environment of landfills. Summary of the Invention

[0004] In view of the above-mentioned shortcomings in the prior art, the present invention provides a landfill excavation deodorization device that solves the problems of low level of intelligence, poor operation flexibility and coverage, and poor spray atomization and purification effect in existing landfill excavation deodorization methods.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: a landfill excavation and deodorization device, comprising a self-propelled chassis, a rotary lifting mechanism, a liquid storage module, a spray deodorization module, an environmental monitoring module, and an intelligent control module;

[0006] The self-propelled chassis is a rubber track mobile chassis, and a frame is fixedly installed on the rubber track mobile chassis. A limit fixing seat is installed on the frame.

[0007] The rotating lifting mechanism includes an electric rotating gimbal mounted on a limit fixing seat, a rotary platform mounted on the electric rotating gimbal, and two sets of scissor lift platforms symmetrically hinged to the upper surface of the rotary platform.

[0008] The liquid storage module includes a sealed liquid storage tank, an automatic dosing port, a quick water replenishment port, and a liquid level sensor. The sealed liquid storage tank is fixed on the frame and has a liquid outlet. The automatic dosing port and the quick water replenishment port are both sealed on the top or side wall of the sealed liquid storage tank. The liquid level sensor is embedded in the bottom of the inner wall of the sealed liquid storage tank, and the detection end of the liquid level sensor extends into the cavity of the sealed liquid storage tank.

[0009] The spray deodorization module includes a mixing tank, a stirring component, a suction pump, an atomizer, a fan, and an adjustable spray frame. The mixing tank is located above the storage tank and has an inlet. The inlet is sealed to the outlet via a liquid guide pipe. The stirring component is a stainless steel rotating water wheel, which is rotatably mounted inside the mixing tank via a rotating shaft. The suction pump connects the mixing tank and the atomizer via a high-pressure liquid guide pipe. The two ends of the adjustable spray frame are mounted on a scissor lift platform. The atomizer and the fan are both fixed on the adjustable spray frame, with the fan outlet facing the atomizing end of the atomizer.

[0010] The environmental monitoring module includes a hydrogen sulfide sensor, an ammonia sensor, and a wind speed sensor, all of which are fixedly installed on the top of the adjustable spray frame, with their detection surfaces facing the outer working surface.

[0011] The intelligent control module includes a controller and a wireless communication module. Both the controller and the wireless communication module are integrated and installed inside the frame control cavity of the self-propelled chassis. The liquid level sensor, hydrogen sulfide sensor, ammonia sensor, wind speed sensor, suction pump, electric rotating gimbal, atomizer, fan, and scissor lift platform are all electrically connected to the controller. The wireless communication module is connected to the controller via signal and establishes a wireless data transmission connection with the remote terminal.

[0012] Furthermore, the aforementioned landfill excavation deodorization device includes a scissor lift platform comprising several sets of interconnected high-strength alloy support rods and an arc-shaped support plate fixed to the top of the high-strength alloy support rods. The arc-shaped support plates of the two sets of scissor lift platforms together form an arc-shaped support surface. The two ends of the adjustable spray frame are hinged to the arc-shaped support surface. An electric hydraulic push rod is also hinged between the high-strength alloy support rods of the scissor lift platform.

[0013] Furthermore, the aforementioned landfill excavation deodorization device is equipped with an electromagnetic dosing valve on the automatic dosing port and a quick-connect sealing joint on the rapid water supply port. The electromagnetic dosing valve is electrically connected to the controller.

[0014] Furthermore, the aforementioned landfill excavation deodorization device uses an axial flow fan, with a stainless steel protective mesh cover on the outside of the axial flow fan, which is fixedly connected to an adjustable spray frame.

[0015] Furthermore, in the aforementioned landfill excavation deodorization device, the surface of the track of the rubber tracked mobile chassis is evenly distributed with anti-slip ridges. The anti-slip ridges are integrally molded rubber structures, and the cross-section of the anti-slip ridges is rectangular.

[0016] Furthermore, in the aforementioned landfill excavation and deodorization device, an angle sensor is installed at the connection point between the rotating platform and the electric rotating gimbal, and the angle sensor is electrically connected to the controller.

[0017] Furthermore, in the aforementioned landfill excavation deodorization device, the atomizer is a high-pressure centrifugal atomizer, and the atomizing end of the atomizer is equipped with several atomizing nozzles, which are arranged in an array.

[0018] Furthermore, the aforementioned landfill excavation and deodorization device is equipped with a power supply module on the frame of its self-propelled chassis. The power supply module is an explosion-proof lithium battery pack, which is electrically connected to the controller. The lithium battery pack is also equipped with a waterproof and dustproof protective shell.

[0019] Furthermore, in the aforementioned landfill excavation deodorization device, the sealed liquid storage tank and the mixing tank are integrated stainless steel tank structures, and the volume of the liquid storage tank is 3 to 5 times the volume of the mixing tank.

[0020] Furthermore, in the aforementioned landfill excavation deodorization device, a stainless steel filter valve is installed at the outlet of the sealed liquid storage tank. The stainless steel filter valve has a filter screen mesh size of 80-120 mesh, and the filter valve is electrically connected to the controller.

[0021] The beneficial effects of this invention are as follows: This invention is equipped with an intelligent control module consisting of a controller and a wireless communication module. The hydrogen sulfide sensor, ammonia sensor, and wind speed sensor are electrically connected to the controller. The environmental monitoring module can detect the concentration of hydrogen sulfide and ammonia and wind speed data in the work area in real time and transmit them to the controller. The controller can automatically adjust the working parameters of the suction pump, atomizer, and fan according to the monitored pollutant concentration, wind speed, and other environmental parameters to achieve precise spraying of the deodorizing atomized liquid, avoid ineffective spraying of the atomized liquid, and make the deodorization operation highly matched with the on-site pollution situation. At the same time, the electric rotating gimbal, scissor lift platform, and electromagnetic dosing valve are all electrically connected to the controller. The controller can uniformly schedule the various execution components. The wireless communication module can also realize data transmission with remote terminals, support remote control operation, greatly reduce manual on-site operation, and significantly improve the intelligence and efficiency of deodorization operation. Compared with the traditional manual control method, the deodorization accuracy is improved by at least 50%.

[0022] The rotating lifting mechanism of this invention is equipped with an electric rotating gimbal and two sets of symmetrical scissor lift platforms. The electric rotating gimbal can drive the rotating platform and spray assembly to rotate 360°. The scissor lift platforms open and close the high-strength alloy support rods through the extension and retraction of the electric hydraulic push rods, thereby adjusting the lifting height of the adjustable spray frame. The adjustable spray frame is hinged to the arc-shaped support surface formed by the two sets of scissor lift platforms. The vertical spray angle of the spray frame can be adjusted by lifting the two sets of scissor lift platforms at different heights. Combined with the mobility of the rubber tracked mobile chassis, the device can achieve multi-dimensional adjustment of spray height, horizontal angle, and pitch angle in any working area of ​​the landfill. The coverage area of ​​the deodorizing spray is greatly expanded, which can adapt to the deodorization needs of different excavation depths and different working surfaces in landfill excavation operations.

[0023] The spray deodorization module of this invention uses a high-pressure centrifugal atomizer. The array of atomizing nozzles at its atomizing end can atomize the deodorizing liquid into tiny droplets, increasing the contact area between the deodorizing liquid and harmful gases. At the same time, the outlet of the axial flow fan is set towards the atomizing end, which can quickly blow the atomized deodorizing droplets onto the working surface, accelerating the mixing reaction of the deodorizing liquid with harmful gases such as hydrogen sulfide and ammonia, and enhancing the deodorization and purification effect. In addition, a stainless steel rotating water wheel is installed in the mixing tank, which can fully stir the deodorizing liquid introduced from the storage tank to ensure that the composition of the deodorizing liquid is uniform.

[0024] The liquid storage module adopts a sealed liquid storage tank, which effectively prevents the evaporation of deodorizing liquid and the entry of external impurities, ensuring the purity of the deodorizing liquid. The top or side wall of the liquid storage tank is sealed with an automatic dosing port and a quick water replenishment port. The automatic dosing port is equipped with an electromagnetic dosing valve electrically connected to the controller, which can realize the automatic quantitative addition of deodorizing liquid. The quick-connect sealing connector of the quick water replenishment port can realize the rapid replenishment of deodorizing liquid without stopping the machine for disassembly. In addition, the liquid level sensor is embedded in the bottom of the inner wall of the liquid storage tank, which can monitor the liquid level in the tank in real time and feed back to the controller, so as to facilitate timely replenishment of deodorizing liquid and avoid the interruption of deodorization operation due to lack of liquid. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the device;

[0026] Figure 2 This is a schematic diagram of the structure of the device;

[0027] Figure 3 This is a schematic diagram of the rotary lifting mechanism;

[0028] Figure 4 This is a schematic diagram of the mixing tank.

[0029] Figure 5 This is a structural schematic diagram of a scissor lift platform.

[0030] The components include: 1. Rubber tracked mobile chassis; 2. Frame; 3. Limiting and fixing seat; 4. Electric rotating gimbal; 5. Rotary platform; 6. Scissor lift platform; 7. Liquid storage tank; 8. Automatic dosing port; 9. Quick water replenishment port; 10. Liquid outlet; 11. Mixing tank; 12. Agitator; 13. Suction pump; 14. Atomizer; 15. Fan; 16. Adjustable spray frame; 17. Liquid inlet; 18. Liquid guide pipe; 19. Rotating shaft; 20. Hydrogen sulfide sensor; 21. Ammonia sensor; 22. Wind speed sensor; 23. Support rod; 24. Arc-shaped support plate; 25. Hydraulic push rod; 26. Electromagnetic dosing valve; 27. Sealing joint; 28. Protective mesh cover; 29. ​​Anti-slip texture; 30. Atomizing nozzle. Detailed Implementation

[0031] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0032] like Figure 1As shown in the figure, this embodiment discloses a landfill excavation deodorization device. This device is applied to the odor control scenario of landfill excavation operations. It can realize intelligent, multi-dimensional and efficient deodorization of the work area, and solve the problems of limited coverage, low level of intelligence and poor utilization efficiency of deodorizing liquid in traditional deodorization devices.

[0033] This device includes a self-propelled chassis, a rotary lifting mechanism, a liquid storage module, a spray deodorization module, an environmental monitoring module, an intelligent control module, and a power supply module. The rotary lifting mechanism, liquid storage module, spray deodorization module, intelligent control module, and power supply module are all integrated and installed on the frame 2 of the self-propelled chassis. The environmental monitoring module is fixed to the top of the adjustable spray frame 16 of the spray deodorization module. The intelligent control module establishes electrical or signal connections with the other functional modules to achieve unified scheduling and intelligent control of the device. All modules work together to complete the deodorization operation in the landfill excavation area.

[0034] The self-propelled chassis is a rubber tracked mobile chassis 1. The track surface is evenly distributed with anti-slip ridges 29. These anti-slip ridges 29 are integrally molded rubber structures with rectangular cross-sections. The anti-slip ridges 29 increase the friction between the track and the uneven ground of the landfill, preventing slippage and lateral movement during operation and improving the stability of the device in complex terrain. An integral frame 2 is welded to the upper surface of the rubber tracked mobile chassis 1. The frame 2 is a welded steel structure with a pre-set limit fixing seat 3 on its upper part. The limit fixing seat 3 is a steel groove structure used to fix the rotating lifting mechanism. The frame 2 has independent control and power supply chambers inside, used to install the intelligent control module and power supply module, respectively. All chambers of the frame 2 are waterproof and dustproof sealed.

[0035] The rotating lifting mechanism is installed on the limiting fixing seat 3 of the frame 2, including an electric rotating gimbal 4, a rotary platform 5, two sets of scissor lift platforms 6, and an angle sensor. The electric rotating gimbal 4 is fixed in the groove of the limiting fixing seat 3 by bolts, and its rotation output end is rigidly connected to the center position of the lower end face of the rotary platform 5. An angle sensor is embedded at the connection position between the rotary platform 5 and the electric rotating gimbal 4. The angle sensor is electrically connected to the controller of the intelligent control module to detect the rotation angle of the rotary platform 5 in real time and transmit the data to the controller to achieve precise control of the rotation angle.

[0036] Two sets of scissor lift platforms 6 are symmetrically hinged on both sides of the upper surface of the rotary platform 5. Each set of scissor lift platforms 6 includes several sets of high-strength alloy support rods 23 that are hinged to each other, an arc-shaped support plate 24 fixed to the top of the high-strength alloy support rods 23, and an electric hydraulic push rod 25. The high-strength alloy support rods 23 are made of high-strength aluminum alloy. Several sets of support rods 23 are cross-hinged to form a scissor telescopic structure. The bottom end is hinged to the rotary platform 5, and the top end is hinged to the lower end face of the arc-shaped support plate 24. The arc-shaped support plates 24 of the two sets of scissor lift platforms 6 are arranged opposite each other to form an arc-shaped support surface. An electric hydraulic push rod 25 is also hinged at the hinge between the high-strength alloy support rods 23. The cylinder end of the electric hydraulic push rod 25 is hinged to the lower support rod 23, and the telescopic rod end is hinged to the upper support rod 23. The opening and closing of the high-strength alloy support rods 23 is driven by the extension and retraction of the electric hydraulic push rod 25, thereby realizing the lifting and lowering of the arc-shaped support plate 24. The electric hydraulic push rod 25 is electrically connected to the controller. The controller can independently adjust the extension and retraction stroke of the electric hydraulic push rod 25 of the two sets of scissor lift platforms 6 to achieve different heights of the two sets of arc support plates 24.

[0037] The liquid storage module is fixed in the middle of the frame 2 and includes a sealed liquid storage tank 7, an automatic dosing port 8, a quick water replenishment port 9, a liquid level sensor, and a stainless steel filter valve. The sealed liquid storage tank 7 is a sealed box made of stainless steel and is fixed to the frame 2 with bolts. Its liquid outlet 10 is opened on the lower side wall of the box. A stainless steel filter valve is installed at the liquid outlet 10. The filter screen of the stainless steel filter valve is 100 mesh (80-120 mesh is also acceptable). The stainless steel filter valve is electrically connected to the controller. The controller can control the opening and closing of the filter valve according to the operation requirements. At the same time, the filter screen can filter impurities in the deodorizing liquid to avoid clogging the subsequent pipeline and atomizer 14.

[0038] Both the automatic dosing port 8 and the quick water replenishment port 9 are sealed and located at the top of the sealed liquid storage tank 7. The automatic dosing port 8 is equipped with an electromagnetic dosing valve 26, which is electrically connected to the controller. The controller can control the opening duration and opening degree of the electromagnetic dosing valve 26 according to the detection data of the liquid level sensor and the preset program, so as to realize the automatic quantitative dosing of deodorizing liquid. The quick water replenishment port 9 is equipped with a quick-connect sealing connector 27. This connector has a quick-plug structure and can be quickly connected to the external water replenishment pipeline to realize the rapid replenishment of deodorizing liquid. The water replenishment process does not require stopping the machine for disassembly, thus improving the continuity of operation.

[0039] The liquid level sensor is embedded in the bottom of the inner wall of the sealed liquid storage tank 7. Its detection end extends into the cavity of the sealed liquid storage tank 7 and is electrically connected to the controller. It can detect the liquid level of the deodorizing liquid in the tank in real time and transmit the liquid level data to the controller in real time. When the liquid level is lower than the preset threshold, the controller issues an alarm signal and can automatically control the electromagnetic dosing valve 26 to open the dosing valve.

[0040] The spray deodorization module includes a mixing tank 11, a stirring element 12, a suction pump 13, an atomizer 14, a fan 15, and an adjustable spray frame 16. The mixing tank 11 is located above the sealed liquid storage tank 7, and the sealed liquid storage tank 7 and the mixing tank 11 are integrated stainless steel tank structures. The volume of the liquid storage tank 7 is 4 times the volume of the mixing tank 11 (3 to 5 times is also acceptable). The integrated structure reduces the overall space occupied by the device and improves the structural compactness.

[0041] A liquid inlet 17 is provided on the lower side wall of the mixing tank 11. The liquid inlet 17 is sealed and connected to the liquid outlet 10 of the sealed storage tank 7 through a liquid guide pipe 18. The liquid guide pipe 18 is a stainless steel corrugated pipe with good sealing performance and corrosion resistance. The stirring component 12 is a stainless steel rotating water wheel. The stainless steel rotating water wheel is rotatably installed in the center of the mixing tank 11 through a rotating shaft 19. The rotating shaft 19 is driven by a micro motor. The stainless steel rotating water wheel can fully stir the deodorizing liquid introduced from the storage tank 7 to ensure that the components of the deodorizing liquid are mixed evenly and improve the deodorizing effect.

[0042] The suction pump 13 is fixed to the frame 2 by bolts. Its inlet end is sealed and connected to the outlet end of the mixing box 11 through the high-pressure liquid guide pipe 18. Its outlet end is sealed and connected to the inlet end of the atomizer 14 through the high-pressure liquid guide pipe 18. The suction pump 13 is electrically connected to the controller. The controller can adjust the output power of the suction pump 13 to achieve precise adjustment of the deodorizing liquid delivery flow rate.

[0043] The atomizer 14 is a high-pressure centrifugal atomizer 14, fixed in the middle of the adjustable spray frame 16 by a bracket. Its atomizing end has several atomizing nozzles 30 arranged in a matrix array. The high-pressure centrifugal atomizer 14 can atomize the deodorizing liquid into tiny droplets with a particle size of 5-10 μm, significantly increasing the contact area between the deodorizing liquid and harmful gases. The adjustable spray frame 16 is a steel frame structure, with both ends hinged to the arc-shaped support surface formed by the arc-shaped support plates 24 of the two sets of scissor lift platforms 6. It can tilt and rotate around the hinge point. When the lifting heights of the two sets of scissor lift platforms 6 are different, the adjustable spray frame 16 adjusts the vertical spray angle according to the height difference of the arc-shaped support surface.

[0044] The fan 15 is an axial flow fan, fixed on the adjustable spray frame 16 and located on one side of the atomizer 14. The air outlet of the fan 15 faces the atomizing end of the atomizer 14. A stainless steel protective mesh cover 28 is provided on the outside of the axial flow fan 15. The protective mesh cover 28 is fixedly connected to the adjustable spray frame 16 by bolts to prevent debris from being drawn into the fan 15 and to prevent atomized droplets from directly impacting the fan blades. The axial flow fan 15 is electrically connected to a controller, which can adjust the speed of the fan 15 to adjust the blowing distance of the atomized droplets.

[0045] The environmental monitoring module includes a hydrogen sulfide sensor 20, an ammonia sensor 21, and a wind speed sensor 22. All three are fixedly mounted on the top of the adjustable spray frame 16 via brackets, with the detection surfaces of all three sensors facing the outer working surface to ensure the data accurately reflects the environmental parameters of the work area. All three are electrically connected to the controller, enabling real-time monitoring of hydrogen sulfide concentration, ammonia concentration, and ambient wind speed in the work area. The monitoring data is transmitted to the controller in real time, providing data support for intelligent control.

[0046] The intelligent control module includes a controller and a wireless communication module, both of which are integrated and installed inside the control cavity of the frame 2 of the self-propelled chassis. The controller adopts a PLC programmable controller, and the wireless communication module adopts a 4G / 5G wireless transmission module. The wireless communication module is connected to the controller by signal, and the wireless communication module establishes a wireless data transmission connection with remote terminals (such as computers, mobile phones, tablets) to realize bidirectional data transmission between the device and the remote terminal.

[0047] The detection signals from the liquid level sensor, hydrogen sulfide sensor 20, ammonia sensor 21, wind speed sensor 22, and angle sensor are all transmitted to the controller. The electric hydraulic push rod 25 of the suction pump 13, electric rotating gimbal 4, atomizer 14, fan 15, scissor lift platform 6, electromagnetic dosing valve 26, and stainless steel filter valve are all electrically connected to the controller. As the control core of the device, the controller can receive the detection data from each sensor and, according to the preset program or instructions from the remote terminal, uniformly schedule the working status and parameters of each actuator. At the same time, the controller can upload the detection data from each sensor and the working status of each component of the device to the remote terminal in real time through the wireless communication module, supporting the remote operation and status monitoring of the device by the staff through the remote terminal.

[0048] The power supply module is an explosion-proof lithium battery pack, bolted to the power supply chamber of the self-propelled chassis frame 2. The battery pack is protected by a waterproof and dustproof shell made of stainless steel, providing explosion-proof, waterproof, and dustproof performance, suitable for the flammable, explosive, dusty, and high-humidity operating environment of landfills. The explosion-proof lithium battery pack is electrically connected to the controller, providing a stable power supply to all electrical components of the device (sensors, controller, wireless communication module, various actuators, etc.), and its endurance meets the 8-hour continuous operation requirements of the landfill.

[0049] The workflow of the landfill excavation deodorization device in this embodiment is as follows:

[0050] Preparation: Deodorizing liquid is added to the sealed storage tank 7 through the quick-connect sealing connector 27 of the quick-fill water inlet 9. The liquid level sensor detects the liquid level in real time, and stops water replenishment when the liquid level reaches the preset upper limit. The controller controls the electromagnetic dosing valve 26 to open according to the preset program, automatically adding deodorizing agent to the storage tank 7 in a quantitative manner. After the addition is completed, the electromagnetic dosing valve 26 closes, the stainless steel filter valve opens, and the deodorizing liquid in the storage tank 7 enters the mixing tank 11 through the liquid guide pipe 18 after being filtered by the filter screen. The stainless steel rotating water wheel in the mixing tank 11 starts to fully stir the deodorizing liquid to ensure uniform composition.

[0051] Site movement: Staff send movement commands via remote terminal or local control terminal of the device. After receiving the command, the controller controls the rubber tracked mobile chassis 1 to start. The device moves along the preset path to the landfill excavation area. The anti-slip ridges 29 on the track surface ensure stable movement of the device on the complex ground of the landfill.

[0052] Parameter detection: After the device arrives at the work area, the hydrogen sulfide sensor 20, ammonia sensor 21, and wind speed sensor 22 of the environmental monitoring module are activated to detect the hydrogen sulfide concentration, ammonia concentration, and ambient wind speed in the work area in real time, and transmit the detection data to the controller in real time; the angle sensor detects the initial rotation angle of the rotary platform 5 in real time, and the liquid level sensor continuously detects the liquid level in the storage tank 7.

[0053] Spray parameter control: After receiving the detection data from each sensor, the controller analyzes and processes it according to a preset algorithm: If the detected concentrations of hydrogen sulfide and ammonia are high, the controller automatically increases the output power of the suction pump 13 to increase the flow rate of the deodorizing liquid, while also increasing the working power of the atomizer 14 and the speed of the axial fan 15 to increase the spray volume and the blowing distance of the atomized droplets; If the detected ambient wind speed is high, the controller appropriately adjusts the speed of the fan 15 to prevent the atomized droplets from being blown away by the wind and to ensure that the deodorizing droplets can accurately cover the working surface; The staff can also manually adjust the working parameters of each component according to the actual situation on site through the remote terminal.

[0054] Multi-dimensional spray adjustment: The controller controls the operation of the rotating lifting mechanism according to the excavation depth and working surface distribution of the work area: the electric rotating gimbal 4 drives the rotating platform 5 and the spray components to rotate 360° horizontally, realizing the adjustment of the horizontal angle of the spray. The angle sensor provides real-time feedback of the rotation angle to ensure rotation accuracy. The controller controls the extension and retraction of the electric hydraulic push rod 25 of the scissor lift platform 6, driving the high-strength alloy support rod 23 to open and close, realizing the adjustment of the lifting height of the adjustable spray frame 16 to adapt to the deodorization needs of different excavation depths. When it is necessary to adjust the spray pitch angle, the controller independently controls the extension and retraction stroke of the electric hydraulic push rod 25 of the two sets of scissor lift platforms 6, so that the two sets of arc support plates 24 form a height difference, driving the adjustable spray frame 16 to pitch and rotate around the hinge point, realizing the adjustment of the vertical angle of the spray, and ensuring that the deodorizing spray covers all working surfaces of the excavation operation.

[0055] Continuous operation and intelligent replenishment: When the device enters continuous deodorization operation mode, each sensor continuously monitors environmental parameters and device status, and the controller dynamically adjusts each execution component in real time according to parameter changes; when the liquid level sensor detects that the liquid level in the storage tank 7 is lower than the preset threshold, the controller sends a replenishment alarm signal to the remote terminal through the wireless communication module, and at the same time automatically controls the electromagnetic dosing valve 26 to open, automatically adding chemicals to the storage tank 7. After adding chemicals to the preset liquid level, the electromagnetic dosing valve 26 closes, eliminating the need for manual on-site operation and ensuring continuous operation.

[0056] Operation completed: After the deodorization operation is completed, the staff sends a stop command through the remote terminal. After receiving the command, the controller controls the suction pump 13, atomizer 14, fan 15 and stainless steel rotating water wheel to stop working in sequence. The electromagnetic dosing valve 26 and stainless steel filter valve are closed. Then, the controller controls the rubber tracked mobile chassis 1 to start and move the device to the designated storage area. The power supply module enters standby mode.

[0057] The landfill excavation deodorization device of this invention is highly intelligent. The environmental monitoring module collects gas concentration and wind speed data in real time, and the controller automatically adjusts the spray parameters accordingly. It also supports remote control, improving deodorization accuracy by at least 50% compared to traditional methods and significantly reducing manual operation. The device allows for multi-dimensional adjustment of spray height, level, and pitch angle. Combined with a mobile chassis, it provides a wide deodorization coverage area, adapting to different excavation conditions. High-pressure centrifugal atomization, combined with an axial flow fan 15, enhances the deodorization reaction, while the mixing tank 11 ensures uniform mixing of the deodorizing liquid, improving purification effect and reagent utilization. The liquid storage module enables automatic dosing and rapid water replenishment, avoiding operational interruptions. The explosion-proof, sealed, and anti-slip design of each component makes the device adaptable to the complex environment of landfills.

Claims

1. A landfill excavation deodorization device, characterized in that, It includes a self-propelled chassis, a rotating lifting mechanism, a liquid storage module, a spray deodorization module, an environmental monitoring module, and an intelligent control module; The self-propelled chassis is a rubber track mobile chassis (1), and a frame (2) is fixedly installed on the rubber track mobile chassis (1). A limiting fixing seat (3) is installed on the frame (2). The rotating lifting mechanism includes an electric rotating gimbal (4) mounted on a limiting fixed seat (3), a rotary platform (5) mounted on the electric rotating gimbal (4), and two sets of scissor lift platforms (6) symmetrically hinged to the upper surface of the rotary platform (5). The liquid storage module includes a sealed liquid storage tank (7), an automatic dosing port (8), a quick water replenishment port (9), and a liquid level sensor. The sealed liquid storage tank (7) is fixed on the frame (2). An outlet (10) is provided on the sealed liquid storage tank (7). The automatic dosing port (8) and the quick water replenishment port (9) are both sealed on the top or side wall of the sealed liquid storage tank (7). The liquid level sensor is embedded in the bottom of the inner wall of the sealed liquid storage tank (7), and the detection end of the liquid level sensor extends into the cavity of the sealed liquid storage tank (7). The spray deodorization module includes a mixing tank (11), a stirring component (12), a suction pump (13), an atomizer (14), a fan (15), and an adjustable spray frame (16). The mixing tank (11) is located above the storage tank (7). The mixing tank (11) is provided with an inlet (17). The inlet (17) is sealed and connected to the outlet (10) through a liquid guide pipe (18). The stirring component (12) is a stainless steel rotating water wheel. The stainless steel rotating water wheel is rotatably installed inside the mixing tank (11) through a rotating shaft (19). The suction pump (13) is connected to the mixing tank (11) and the atomizer (14) through a high-pressure liquid guide pipe (18). The two ends of the adjustable spray frame (16) are set on a scissor lift platform (6). The atomizer (14) and the fan (15) are both fixed on the adjustable spray frame (16). The air outlet of the fan (15) is set towards the atomizing end of the atomizer (14). The environmental monitoring module includes a hydrogen sulfide sensor (20), an ammonia sensor (21), and a wind speed sensor (22) fixedly installed on the top of the adjustable spray frame (16), with the detection surfaces of all three facing the outer working surface; The intelligent control module includes a controller and a wireless communication module. Both the controller and the wireless communication module are integrated and installed inside the control cavity of the frame (2) of the self-propelled chassis. The liquid level sensor, hydrogen sulfide sensor (20), ammonia sensor (21), wind speed sensor (22), suction pump (13), electric rotating gimbal (4), atomizer (14), fan (15), and scissor lift platform (6) are all electrically connected to the controller. The wireless communication module is signal connected to the controller and establishes a wireless data transmission connection with the remote terminal.

2. The landfill excavation deodorizing apparatus according to claim 1, characterized by, The scissor lift platform (6) includes several sets of high-strength alloy support rods (23) that are hinged to each other and an arc-shaped support plate (24) fixed to the top of the high-strength alloy support rods (23). The arc-shaped support plates (24) of the two sets of the scissor lift platform (6) together form an arc-shaped support surface. The two ends of the adjustable spray frame (16) are hinged to the arc-shaped support surface. An electric hydraulic push rod (25) is also hinged between the high-strength alloy support rods (23) of the scissor lift platform (6).

3. The landfill excavation deodorizing apparatus according to claim 1, characterized by, An electromagnetic dosing valve (26) is provided on the automatic dosing port (8), and a quick-connect sealing connector (27) is provided on the quick water supply port (9). The electromagnetic dosing valve (26) is electrically connected to the controller.

4. The landfill excavation deodorizing apparatus according to claim 1, characterized by The fan (15) is an axial flow fan (15), and a stainless steel protective net cover (28) is provided on the outside of the axial flow fan (15). The protective net cover (28) is fixedly connected to the adjustable spray frame (16).

5. The landfill excavation deodorizing apparatus according to claim 1, characterized by The track surface of the rubber tracked mobile chassis (1) is evenly distributed with anti-slip ridges (29). The anti-slip ridges (29) are integrally molded rubber structures, and the cross section of the anti-slip ridges (29) is rectangular.

6. The landfill excavation deodorizing apparatus according to claim 1, wherein An angle sensor is provided at the connection position between the rotary platform (5) and the electric rotating gimbal (4), and the angle sensor is electrically connected to the controller.

7. The landfill excavation deodorizing apparatus according to claim 1, characterized by The atomizer (14) is a high-pressure centrifugal atomizer (14), and the atomizing end of the atomizer (14) is provided with a number of atomizing nozzles (30), which are arranged in an array.

8. The landfill excavation deodorizing apparatus according to claim 1, wherein The self-propelled chassis frame (2) is also equipped with a power supply module, which is an explosion-proof lithium battery pack. The lithium battery pack is electrically connected to the controller, and a waterproof and dustproof protective shell is provided on the outside of the lithium battery pack.

9. The landfill excavation deodorizing apparatus according to claim 1, wherein The sealed liquid storage tank (7) and the mixing tank (11) are integrated stainless steel tank structures, and the volume of the liquid storage tank (7) is 3 to 5 times the volume of the mixing tank (11).

10. The landfill excavation deodorizing apparatus according to claim 1, characterized by, A stainless steel filter valve is installed at the outlet (10) of the sealed liquid storage tank (7). The filter valve has a mesh size of 80-120 mesh and is electrically connected to the controller.

Images