Ecological restoration simulation device for spontaneous combustion high-temperature area of open pit coal mine side slope
An ecological restoration simulation device integrating a variable-angle slope platform, a temperature-controlled system, and a flue gas precipitation simulation system has solved the problem of multi-factor coupled simulation in the high-temperature zone of spontaneous combustion on open-pit coal mine slopes, and achieved efficient optimization of ecological restoration materials and processes.
Patent Information
- Application Number
- CN202511476772.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-01-02
AI Technical Summary
Existing technologies cannot effectively simulate the multi-factor coupled environment of the high-temperature zone of spontaneous combustion on open-pit coal mine slopes, which leads to ecological restoration research relying on field experiments, resulting in long cycles, high costs, and uncontrollable data.
Design an ecological restoration simulation device that integrates a variable-angle slope platform, a temperature control system, an underground spontaneous combustion smoke simulation system, and a precipitation simulation system to achieve accurate reproduction of the high-temperature environment.
Through multi-factor coupled simulation, the environment of the high-temperature zone of spontaneous combustion in open-pit coal mines is accurately reproduced, providing a scientific basis for the screening of ecological restoration materials and the optimization of restoration processes, reducing research costs and improving data controllability.
Smart Images
Figure CN121253418A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a kind of open coal mine slope spontaneous combustion high temperature zone ecological restoration simulation device, belong to the technical field of ecological restoration simulation equipment. BACKGROUND
[0002] In the process of open coal mining, coal seam is exposed to air and prone to spontaneous combustion, especially in the slope area, due to the coal seam dip angle, fracture development and ventilation conditions, spontaneous combustion phenomenon is more significant. Hundreds of degrees high temperature generated by spontaneous combustion can destroy the slope rock-soil structure, while releasing CO, SO2 and other toxic smoke, and accompanied by rainwater or snowmelt water infiltration, forming the extreme environment of "high temperature-smoke-moisture" coupling. In this environment, vegetation is difficult to survive, soil microbial activity is lost, and ecological restoration is extremely difficult.
[0003] Currently, the research on ecological restoration of open coal mine slope mainly focuses on the response measures of single factor (such as temperature or precipitation), and lacks systematic simulation device for "high temperature-smoke-precipitation" coupling environment. The existing ordinary soil incubator or small-scale climate simulation cabin experimental equipment cannot realize the following factors: ① dynamic adjustment of slope angle to simulate the slope shape at different mining stages; ② precise control of high-temperature environment simulating underground spontaneous combustion heat transfer; ③ directional infiltration of underground spontaneous combustion smoke containing various corrosive components; ④ flexible setting of precipitation intensity and period. This leads to the dependence of ecological restoration technology research and development on field test, which has long cycle, high cost and uncontrollable data. Therefore, an experimental device capable of integrating multi-factor coupling simulation is urgently needed to provide scientific support for ecological restoration material screening, plant tolerance research and repair process optimization. SUMMARY
[0004] The technical problem to be solved by the present application is to provide an ecological restoration simulation device for spontaneous combustion high temperature zone of open coal mine slope, which realizes precise reproduction of real high temperature zone environment by integrating variable angle slope platform, controllable temperature system, underground spontaneous combustion smoke simulation system and precipitation simulation system, and solves the technical problem of unable to simulate multiple factors in the prior art.
[0005] To solve the above problems, the specific technical scheme of the present application is as follows: an ecological restoration simulation device for spontaneous combustion high temperature zone of open coal mine slope is provided, a slope platform is arranged in the box support, one end of the slope platform is provided with a rotating shaft, and the rotating shaft is connected with the box support through a rotating support, the other end of the slope platform is connected with an angle adjusting device, and the angle adjusting device drives the slope platform to adjust the pitch angle; a high-temperature smoke simulation device is arranged at the bottom of the box support, and a simulated precipitation device is arranged at the top of the box support; the slope platform is made of metal steel plate, and a plurality of transverse and longitudinal distribution penetration holes are arranged on the surface.
[0006] The angle adjusting device structure comprises a lead screw, a motor and a rotating support rod; two ends of two parallel lead screws are arranged on both sides of the bottom frame through bearing seats respectively; one end of each lead screw extends out of the bearing seat on one side to connect a small belt pulley, the motor is located in the middle of the two lead screws, the output shaft of the motor is connected to a large belt pulley, two belts are arranged on the large belt pulley and are connected to the small belt pulleys on the two lead screws for transmission; a transmission nut on the lead screw is movably connected to one end of the rotating support rod, and the other end of the rotating support rod is connected to the bottom surface of the slope platform through a support shaft.
[0007] The high-temperature flue gas simulation device comprises a bottom plate, a gas conveying pipeline and a glass fiber heating belt; the glass fiber heating belt is arranged in an S-shaped manner in the transverse and longitudinal directions in the bottom plate; a plurality of parallel gas conveying pipelines are arranged above the glass fiber heating belt, one end of the gas conveying pipelines is connected to the outlet of a Roots blower through a gas inlet pipeline, and the inlet of the Roots blower is connected to a gas storage tank; an upward gas outlet is arranged on each gas conveying pipeline.
[0008] The glass fiber heating belt is connected to a power supply through a temperature control device.
[0009] The simulated rainfall device comprises a spray head; a plurality of spray heads are arranged on the lower surface of the top of the box support, the plurality of spray heads are connected to different branch pipelines, a branch control valve is arranged on the branch pipeline, and a plurality of branch control valves are connected to a total valve through a total pipeline; the total valve is connected to the outlet of a water pump through a water inlet pipeline, and the inlet of the water pump is connected to a water storage tank.
[0010] The open-pit coal mine slope spontaneous combustion high-temperature zone ecological restoration simulation device has the following characteristics: 1. The slope platform is adjusted to an inclination angle of 0°-90° through the angle adjusting device, so that the actual angle of the slope in the field is simulated; 2. The high-temperature flue gas simulation device simulates the generation of CO, SO2 and other flue gases through the glass fiber heating belt and the gas conveying pipeline, and diffuses into the slope through the penetration hole, so that the flue gas production in the field is simulated, and the uneven problem of the traditional device is avoided; 3. The simulated rainfall device can adjust the rainfall intensity according to the actual rainfall.
[0011] 4. Through the multi-factor coupling simulation of angle, temperature and rainfall, the real environment of the spontaneous combustion high-temperature zone of the open-pit coal mine is accurately reproduced; the device is suitable for testing the high-temperature resistance of ecological restoration materials, studying the smoke stress resistance of plants and optimizing the restoration process, and provides a theoretical basis for field restoration; 5. Accurate high-temperature control: the glass fiber heating belt can be adjusted in temperature to ensure that the temperature gradient in the slope is consistent with that in the actual spontaneous combustion zone, with an error of ≤±2℃; 6、The application is suitable for testing the high temperature resistance of ecological restoration materials, studying the resistance of plants to flue gas stress and optimizing the restoration process, thereby providing a theoretical basis for on-site restoration. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the application.
[0013] Figure 2 It is a schematic diagram of the structure of the angle adjusting device.
[0014] Figure 3 It is a schematic diagram of the connection between the box and the threaded rod.
[0015] Figure 4 It is a schematic diagram of the structure of the high-temperature flue gas simulation device.
[0016] Figure 5 It is a schematic diagram of the pipeline of the simulated precipitation device. DETAILED DESCRIPTION
[0017] As shown in the drawings, Figure 1 A simulation device for ecological restoration of a high-temperature spontaneous combustion area of a coal mine slope is provided. The device includes a box support 1, a slope platform 2 provided in the box support 1, a rotating shaft 36 provided at one end of the slope platform 2 and connected to the box support 1 through a rotating support 6, an angle adjusting device 10 connected to the other end of the slope platform 2, the angle adjusting device driving the slope platform 2 to adjust the pitch angle, a high-temperature flue gas simulation device 20 provided at the bottom of the box support 1, and a simulated precipitation device 30 provided at the top of the box support 1. The slope platform 2 is made of a metal steel plate and has a plurality of horizontal and vertical penetration holes 3 on the surface. During the test, the slope platform 2 is covered with soil and planted with vegetation, thereby simulating the test process of ecological restoration of a high-temperature spontaneous combustion area of a coal mine slope.
[0018] As shown in the drawings, Figure 2 and Figure 3 The angle adjusting device 10 includes a lead screw 11, a motor 12, and a rotating support rod 13. Two parallel lead screws 11 are arranged on both sides of a bottom frame 14 through bearing seats at both ends. One end of each lead screw 11 extends out of the bearing seat on one side and is connected to a small pulley 15. The motor 12 is located in the middle of the two lead screws 11, and the output shaft of the motor 12 is connected to a large pulley 16. Two belts are provided on the large pulley 16 and are connected to the small pulleys 15 on the two lead screws 11 for transmission. The transmission nut on the lead screw 11 is movably connected to one end of the rotating support rod 13, and the other end of the rotating support rod 13 is connected to the bottom surface of the slope platform 2 through a support shaft 17. When the motor is started, the two lead screws 11 rotate synchronously, thereby driving the nut to translate, changing the angle of the connected rotating support rod, and causing the slope platform 2 to rotate around the center of the rotating shaft of the rotating support 6 as a circle point. An angle gauge 5 can be provided on the rotating support 6 to determine the rotation angle of the slope platform 2.
[0019] As Figure 4 shown, the high-temperature flue gas simulation device 20 includes a bottom plate 21, a gas conveying pipe 22 and a glass fiber heating belt 23; the glass fiber heating belt 23 is arranged in a transverse and longitudinal S shape in the bottom plate 21; a plurality of parallel gas conveying pipes 22 are arranged above the glass fiber heating belt 23, one end of the gas conveying pipe 22 is connected with the outlet of a Roots blower 24 through a gas inlet pipe 25, the inlet of the Roots blower 24 is connected with a gas storage tank 26; an upward gas outlet 27 is arranged on each gas conveying pipe 22. The glass fiber heating belt 23 is connected with a power supply through a temperature control device 28. A simulation gas source is arranged in the gas storage tank 26, and the gas is heated through the glass fiber heating belt 23, so that the natural environment of the high-temperature area of the slope is simulated, and the temperature can be adjusted in real time.
[0020] As Figure 5 shown, the simulation rainfall device 30 includes a spray head 31; a plurality of spray heads 31 are arranged on the lower surface of the top of the box support 1, the plurality of spray heads 31 are connected with different branch pipes, a branch control valve 32 is arranged on the branch pipe, a plurality of branch control valves 32 are connected with a total valve 33 through a total pipe, the total valve 33 is connected with the outlet of a water pump 35 through a water inlet pipe 34, the inlet of the water pump 35 is connected with a water storage tank 36, and the water inlet amount of each branch pipe is controlled by controlling the opening and closing of the branch control valve 32.
Claims
1. An ecological restoration simulation device for a high-temperature spontaneous combustion area of a slope of an open-pit coal mine, characterized in that: A slope platform (2) is arranged in the box support (1), one end of the slope platform (2) is provided with a rotating shaft (36) and is connected with the box support (1) through a rotating support (6), the other end of the slope platform (2) is connected with an angle adjusting device (10), the angle adjusting device drives the slope platform (2) to adjust the pitch angle; a high-temperature flue gas simulation device (20) is arranged at the bottom of the box support (1), and a simulated rainfall device (30) is arranged at the top of the box support (1); the slope platform (2) is a metal steel plate, and a plurality of horizontal and vertical distribution penetration holes (3) are arranged on the surface of the slope platform (2).
2. The ecological restoration simulation device for spontaneous combustion high-temperature zone of open-pit coal mine slope according to claim 1, characterized in that: The angle adjusting device (10) comprises a lead screw (11), a motor (12) and a rotating support rod (13); two parallel lead screws (11) are arranged at both sides of a bottom frame (14) through bearing seats at both ends of the lead screws (11); one end of each lead screw (11) extends out of the bearing seat on one side and is connected with a small belt pulley (15), the motor (12) is located at the middle of the two lead screws (11), the output shaft of the motor (12) is connected with a large belt pulley (16), two belts are arranged on the large belt pulley (16) and are connected with the small belt pulleys (15) on the two lead screws (11) for transmission; one end of the rotating support rod (13) is movably connected with a transmission nut on the lead screw (11), and the other end of the rotating support rod (13) is connected with the bottom surface of the slope platform (2) through a support shaft (17).
3. The open-pit coal mine slope spontaneous combustion high-temperature zone ecological restoration simulation device according to claim 1, characterized in that: The high-temperature flue gas simulation device (20) comprises a bottom plate (21), a gas pipeline (22) and a glass fiber heating belt (23); the glass fiber heating belt (23) is arranged in the bottom plate (21) in a horizontal and vertical S-shaped mode; a plurality of parallel gas pipelines (22) are arranged above the glass fiber heating belt (23), one end of the gas pipelines (22) is connected with the outlet of a Roots blower (24) through a gas inlet pipeline (25), and the inlet of the Roots blower (24) is connected with a gas storage tank (26); an upward gas outlet (27) is arranged on each gas pipeline (22).
4. The open-pit coal mine slope spontaneous combustion high-temperature zone ecological restoration simulation device according to claim 3, characterized in that: The glass fiber heating belt (23) is connected with a power supply through a temperature control device (28).
5. The open-pit coal mine slope spontaneous combustion high-temperature zone ecological restoration simulation device according to claim 1, characterized in that: The simulated rainfall device (30) comprises a spray head (31); a plurality of spray heads (31) are arranged on the lower surface of the top of the box support (1), the plurality of spray heads (31) are connected with different branch pipelines, a branch control valve (32) is arranged on the branch pipeline, and a plurality of branch control valves (32) are connected with a total valve (33) through a total pipeline; the total valve (33) is connected with the outlet of a water pump (35) through a water inlet pipeline (34), and the inlet of the water pump (35) is connected with a water storage tank (36).