Tunneling working face environment management system

Abstract

The invention provides a driving face environment management system. The driving working face environment management system comprises a sensing device, a dust removal device and a controller. The sensing device is arranged on the heading machine and comprises a dust sensor; the dust removal device is arranged on a cantilever of the heading machine, and the dust removal device and the cantilever can move relatively in the first direction, so that the dust removal range of the dust removal device is adjustable; the controller is electrically connected with the sensing device and the dust removal device, the controller is used for controlling motion parameters of the dust removal device according to a detection signal of the sensing device, and the motion parameters comprise at least one of the motion stroke, the motion direction and the motion speed. According to the scheme, the problems that in the prior art, when the dust concentration of the driving working face exceeds the standard, manual adjustment is needed, efficiency is low, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine excavation, and in particular to an excavation working face environment management system. Background Art

[0002] With the continuous reduction of coal resources in my country and the continuous increase of coal mining costs, the reduction of coal resource costs and the improvement of coal quality have become the core elements of enterprise development. On the other hand, the mining of coal resources will cause great damage to the environment. During the coal mining process, a large amount of dust will be generated at the excavation face, affecting the health of the workers. At the same time, gas will be generated during the excavation process. When the concentration is too high, it will cause gas explosions, causing coal mine accidents and seriously threatening the lives of workers in the mine.

[0003] In the prior art, the measures usually taken are to increase the ventilation volume of the mine, increase the natural wind volume in the mining area, increase tunnel flushing, nozzle spraying, mine water sprinkling, tunnel spraying and other measures to reduce coal dust on the working face, improve the production environment, improve mine ventilation efficiency, reduce dust pollution and the impact on people's health.

[0004] Although the above measures have improved the working environment to a certain extent, due to the diffusivity and fluidity of dust particles in the tunnel, the dust concentration at the excavation face is difficult to effectively control, and the dust concentration in the tunnel of the mining area increases significantly when the tunnel boring machine is working, affecting the air circulation of the working face and its surroundings, which is not conducive to people's health. At the same time, it has an adverse effect on the operation of equipment in the tunnel, causing vehicles in the tunnel to slide, equipment to work unstably, etc., reducing the operating efficiency of the equipment in the tunnel.

[0005] There is no effective solution to the above problems yet. Summary of the invention

[0006] The main purpose of the present invention is to provide an environmental management system for an excavation working face to solve the problem in the prior art that when the dust concentration of the excavation working face exceeds the standard, manual adjustment is required, which is inefficient and has safety hazards.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an environmental management system for an excavation working face, comprising: a sensing device, the sensing device is arranged on a tunnel boring machine, the sensing device comprises a dust sensor; a dust removal device, the dust removal device is arranged on a cantilever of the tunnel boring machine, the dust removal device and the cantilever are arranged to be relatively movable in a first direction, so that the dust removal range of the dust removal device can be adjusted; a controller, the controller is electrically connected to the sensing device and the dust removal device, the controller is used to control the motion parameters of the dust removal device according to the detection signal of the sensing device, the motion parameters comprising at least one of a motion stroke, a motion direction and a motion speed.

[0008] Furthermore, the dust removal device includes: a slide rail, which is connected to the cantilever and extends along the length direction of the cantilever; a slider, which is connected to the slide rail; and a dust removal body, which is connected to the slider.

[0009] Furthermore, the dust removal body comprises: an outer ring water supply pipeline; an inner ring water supply pipeline, the inner ring water supply pipeline is located inside the outer ring water supply pipeline;

[0010] Among them, the outer circle water supply pipe and the inner circle water supply pipe are both annular structures, and at least one of the outer circle water supply pipe and the inner circle water supply pipe is provided with multiple atomizing nozzles, and the multiple atomizing nozzles are arranged at intervals along the annular direction of the outer circle water supply pipe or the annular direction of the inner circle water supply pipe. The atomizing nozzles are used to spray the liquid in the outer circle water supply pipe or the liquid in the inner circle water supply pipe to the target area, and the target area includes at least one of the excavation working face and the tunnel space.

[0011] Furthermore, the outer ring water supply pipe and the inner ring water supply pipe can be arranged to rotate relatively.

[0012] Furthermore, multiple atomizing nozzles are arranged on the outer circle water supply pipe and the inner circle water supply pipe. The multiple atomizing nozzles on the outer circle water supply pipe are arranged in the same direction, and the multiple atomizing nozzles on the inner circle water supply pipe are arranged in the same direction. The direction of the atomizing nozzles on the outer circle water supply pipe is opposite to the direction of the atomizing nozzles on the inner circle water supply pipe.

[0013] Furthermore, the multiple atomizing nozzles on the inner ring water supply pipe are arranged in different directions, and / or the multiple atomizing nozzles on the outer ring water supply pipe are arranged in different directions.

[0014] Furthermore, both the outer circle water supply pipeline and the inner circle water supply pipeline are provided with high-pressure water interfaces, and the high-pressure water interfaces are used to connect to the high-pressure water pipe.

[0015] Furthermore, the high-pressure water interface and the atomizing nozzle are respectively arranged on both sides of the axial direction of the outer ring water supply pipeline and / or on both sides of the axial direction of the inner ring water supply pipeline.

[0016] Furthermore, the dust removal body also includes a rear cover plate of the dust removal device and a front cover plate of the dust removal device. At least one of the rear cover plate of the dust removal device and the front cover plate of the dust removal device is connected to the slider, and the outer circle water supply pipe and the inner circle water supply pipe are both connected to the rear cover plate of the dust removal device.

[0017] Furthermore, the sensing device also includes a gas sensor, and the excavation working face environment management system also includes a ventilation duct, the first end of the ventilation duct is connected to the environment outside the tunnel, the second end of the ventilation duct is connected to the tunnel and is arranged close to the excavation working face, a fan is arranged at the first end of the ventilation duct, the gas sensor is electrically connected to the controller, and the controller is used to control the power of the fan according to the gas detection value of the gas sensor.

[0018] By applying the technical solution of the present invention, by integrating the dust sensor and the dust removal device on the tunnel boring machine, the real-time monitoring and precise control of the dust concentration of the tunnel boring face is realized, which effectively improves the working environment of the tunnel boring face and reduces the impact of dust on the health of workers. At the same time, based on the real-time dust concentration data provided by the sensor device, the controller dynamically adjusts the motion parameters of the dust removal device to adapt to the dust removal requirements under different dust concentrations. This dynamic adjustment capability optimizes energy use while ensuring efficient dust removal. It solves the problem in the prior art that when the dust concentration of the tunnel boring face exceeds the standard, manual adjustment is required, which is inefficient and has safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It shows a schematic structural diagram of a first embodiment of a tunneling working face environment management system according to the present invention;

[0021] Figure 2 It shows a schematic structural diagram of a second embodiment of a tunneling working face environment management system according to the present invention;

[0022] Figure 3 A schematic structural diagram of a third embodiment of an excavation working face environment management system according to the present invention is shown;

[0023] Figure 4 A working flow chart of an embodiment of an excavation working face environment management system according to the present invention is shown;

[0024] Figure 5 A schematic diagram of the architecture of an embodiment of a tunneling working face environment management system according to the present invention is shown;

[0025] Figure 6 The following is a flowchart showing an embodiment of an environment management system for an excavation working face according to the present invention.

[0026] The above drawings include the following reference numerals:

[0027] 1. Fan; 2. Ventilation duct; 3. Display screen; 4. Controller; 5. Gas sensor;

[0028] 6. Dust sensor;

[0029] 7. Dust removal device; 8. High-pressure water pipe; 9. Rear cover of dust removal device; 10. Front cover of dust removal device;

[0030] 11. Atomizing nozzle; 12. Sliding block; 13. Sliding rail;

[0031] 14. High-pressure water interface; 15. Outer circle water supply pipeline; 16. Inner circle water supply pipeline. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0036] Combination Figures 1 to 4 As shown, according to a specific embodiment of the present application, a tunneling working face environment management system is provided.

[0037] Specifically, the management system includes: a sensor device, a dust removal device 7 and a controller 4. The sensor device is arranged on the tunnel boring machine, and the sensor device includes a dust sensor 6; the dust removal device 7 is arranged on the cantilever of the tunnel boring machine, and the dust removal device 7 and the cantilever are arranged to be relatively movable in a first direction, so that the dust removal range of the dust removal device 7 can be adjusted; the controller 4 is electrically connected to the sensor device and the dust removal device 7, and the controller 4 is used to control the motion parameters of the dust removal device 7 according to the detection signal of the sensor device, and the motion parameters include at least one of the motion stroke, motion direction and motion speed.

[0038] By applying the technical solution of the present invention, by integrating the dust sensor 6 and the dust removal device 7 on the tunneling machine, real-time monitoring and precise control of the dust concentration of the tunneling working face are achieved, which effectively improves the working environment of the tunneling working face and reduces the impact of dust on the health of workers. At the same time, the controller 4 dynamically adjusts the motion parameters of the dust removal device 7 based on the real-time dust concentration data provided by the sensor device to adapt to the dust removal requirements under different dust concentrations. This dynamic adjustment capability optimizes energy use while ensuring efficient dust removal. It solves the problem in the prior art that when the dust concentration of the tunneling working face exceeds the standard, manual adjustment is required, which is inefficient and has safety hazards.

[0039] It should be further explained that the tunneling working face environment management system also includes a display screen 3, which is electrically connected to the controller 4. A plurality of dust sensors 6 are provided, which are installed at different positions of the tunneling machine to monitor the dust concentration at different positions in the tunnel in real time, and transmit the monitored data to the controller 4 in real time through the data transmission line for processing and analysis, and upload to the display screen 3 for display.

[0040] Specifically, the dust removal device 7 includes: a slide rail 13, a slider 12 and a dust removal body. The slide rail 13 is connected to the cantilever, and the slide rail 13 is extended along the length direction of the cantilever; the slider 12 is connected to the slide rail 13; and the dust removal body is connected to the slider 12. The design of the slide rail 13 and the slider 12 enables the dust removal device 7 to adjust its position along the length direction of the cantilever according to actual needs, effectively cover different areas, and improve dust removal efficiency.

[0041] like Figure 2As shown, the slide rail 13 is a guide rail structure fixed on the boom of the tunnel boring machine. It extends along the length of the boom and provides a track for the movement of the dust removal body. The slider 12 is a moving component that cooperates with the slide rail 13. It is equipped with rollers or sliding devices and can move smoothly along the slide rail 13 to reduce the friction between the slide rail 13. The slider 12 is directly connected to the dust removal body. Through the control of a drive module (such as a motor or a hydraulic system), the slider 12 drives the dust removal body to move back and forth along the slide rail 13. The movement stroke and movement speed of the dust removal body can be adjusted by the controller 4 according to the detection signal of the dust sensor 6 to more accurately cover the area where dust removal is required. At the same time, the material and design of the slide rail 13 must ensure that it has wear resistance and sufficient strength to withstand the weight and frequent movement of the dust removal body.

[0042] Furthermore, the dust removal body includes: an outer ring water supply pipe 15 and an inner ring water supply pipe 16. The inner ring water supply pipe 16 is located on the inner side of the outer ring water supply pipe 15; wherein, the outer ring water supply pipe 15 and the inner ring water supply pipe 16 are both annular structures, and at least one of the outer ring water supply pipe 15 and the inner ring water supply pipe 16 is provided with a plurality of atomizing nozzles 11, and the plurality of atomizing nozzles 11 are arranged at intervals along the annular direction of the outer ring water supply pipe 15 or the annular direction of the inner ring water supply pipe 16, and the atomizing nozzles 11 are used to spray the liquid in the outer ring water supply pipe 15 or the liquid in the inner ring water supply pipe 16 to the target area, and the target area includes at least one of the excavation working face and the tunnel space. The coordinated use of the annular structure water supply pipe and the atomizing nozzle 11 can form an all-round water mist spraying area, effectively capturing and settling dust particles in the air. In underground mine and tunnel construction, this design can significantly reduce the dust content in the air, improve the working environment, and reduce the risk of occupational diseases. At the same time, water mist can also play a certain cooling role, improving the comfort of workers in high temperature environments and indirectly improving work efficiency.

[0043] like Figure 3 As shown, both the outer ring water supply pipe 15 and the inner ring water supply pipe 16 adopt an annular structure, wherein the outer ring water supply pipe 15 is surrounded by the outside of the inner ring water supply pipe 16. This design enables the water mist to form a circular spray area, covering a wider range. In this embodiment, a plurality of atomizing nozzles 11 are installed on both pipes, and these atomizing nozzles 11 are evenly spaced along the annular direction of the pipes, which can ensure the uniform distribution of water mist in the target area (such as the excavation working face, the tunnel space), and effectively capture and settle the dust in the air. The atomizing nozzles 11 on the outer ring water supply pipe 15 and the atomizing nozzles 11 on the inner ring water supply pipe 16 are arranged at cross intervals, and the cross-arranged atomizing nozzles 11 can complement each other, reduce the blind area of ​​water mist spraying, and avoid the water mist from being concentrated in a certain area, thereby ensuring that the water mist distribution in the entire working face and the tunnel space is more uniform, and improving the dust reduction efficiency.

[0044] In actual use, when the tunnel boring machine starts working, the dust sensor 6 installed on the tunnel boring machine monitors the dust concentration of the working face in real time and transmits the data to the controller 4. After analyzing the data, if the controller 4 finds that the dust concentration exceeds the preset threshold, it sends a control instruction to the dust removal body. Driven by the driving module, the slider 12 moves the dust removal body along the slide rail 13, and the multiple atomizing nozzles 11 set on the outer ring water supply pipe 15 and the inner ring water supply pipe 16 spray water mist on the target area, thereby reducing the dust concentration. After the dust concentration is reduced, the controller 4 controls the dust removal body to move to the initial position to avoid hindering the tunnel boring machine from continuing to dig.

[0045] Specifically, the outer ring water supply pipe 15 and the inner ring water supply pipe 16 are relatively rotatable. By making the outer ring water supply pipe 15 and the inner ring water supply pipe 16 relatively rotatable, the atomizing nozzle 11 can cover different angles, and the system can adjust the spray direction and coverage of the water mist according to actual needs. During the excavation process, the shape and environment of the working face will continue to change. The outer ring water supply pipe 15 and the inner ring water supply pipe 16 can be relatively rotatable so that the atomizing nozzle 11 can adapt to these changes, ensuring effective dust reduction under any working conditions.

[0046] Specifically, multiple atomizing nozzles 11 are arranged on both the outer ring water supply pipe 15 and the inner ring water supply pipe 16. The multiple atomizing nozzles 11 on the outer ring water supply pipe 15 are arranged in the same direction, and the multiple atomizing nozzles 11 on the inner ring water supply pipe 16 are arranged in the same direction. The direction of the atomizing nozzles 11 on the outer ring water supply pipe 15 is opposite to the direction of the atomizing nozzles 11 on the inner ring water supply pipe 16. By making the atomizing nozzles 11 of the outer ring and the inner ring face opposite directions, the system can form counter-flowing water mist flows, effectively capture dust particles from different directions, and maintain a high-efficiency dust removal effect even in an environment with extremely high dust concentration and uneven distribution, such as the cleaning stage after deep coal mining and metal mine blasting, significantly improve the air quality of the working surface, reduce irritation to the respiratory tract of workers, and improve the safety and comfort of operations.

[0047] The direction of the atomizing nozzle 11 on the outer circle water supply pipe 15 is set opposite to the direction of the atomizing nozzle 11 on the inner circle water supply pipe 16. The design of the atomizing nozzle 11 facing in opposite directions can ensure that the water mist forms a cross coverage in the space, surrounds the dust from different directions, increases the chance of contact between the water mist and the dust, and makes the dust easier to be captured by the water mist. When the water mist sprayed by the atomizing nozzles 11 of the inner and outer circles meet in the air, they will collide and combine with each other to form larger water droplets. This process helps to accelerate the sedimentation of dust particles and reduce their suspension time in the air, thereby reducing the dust concentration.

[0048] Optionally, multiple atomizing nozzles 11 are provided on the outer circle water supply pipe 15 and the inner circle water supply pipe 16. When the dust concentration is low, the system can only turn on the inner circle or outer circle atomizing nozzles 11 to reduce the use of water mist and save resources; when the concentration is high, all the atomizing nozzles 11 are turned on to form a denser water mist protection net to effectively control dust.

[0049] Specifically, the multiple atomizing nozzles 11 on the inner ring water supply pipe 16 are arranged in different directions, and / or the multiple atomizing nozzles 11 on the outer ring water supply pipe 15 are arranged in different directions.

[0050] There are the following differences between setting the atomizing nozzles 11 in different directions on the outer ring water supply pipe 15 and the inner ring water supply pipe 16 and setting the atomizing nozzles 11 in the same direction:

[0051] (1) Atomizing nozzles 11 with the same orientation can only form water mist in a certain direction, while atomizing nozzles 11 with different orientations can cover a wider space, especially in a three-dimensional space. This helps to form a three-dimensional water mist protection net in the three-dimensional space, which can capture and settle dust more comprehensively and reduce the spread of dust.

[0052] (2) Atomizing nozzles 11 with the same orientation may cause the water mist to concentrate at a certain point, resulting in local excessive wetting; while atomizing nozzles 11 with different orientations can avoid such concentration and achieve more uniform wetting.

[0053] (3) The atomizing nozzles 11 with the same orientation are more effective for dust sources at fixed positions, while the design of atomizing nozzles 11 with different orientations improves the system's adaptability to dynamic working conditions and uncertain dust sources. No matter which direction the dust is generated from, the spray dust can be quickly and effectively reduced.

[0054] By setting the atomizing nozzle 11 in different directions, the excavation working face environment management system can provide a more efficient and uniform dust reduction effect in a more complex and changeable working environment, while also enhancing the system's intelligent control capability and resource utilization efficiency.

[0055] Specifically, the outer ring water supply pipe 15 and the inner ring water supply pipe 16 are both provided with a high-pressure water interface 14, which is used to connect to the high-pressure water pipe 8. The connection between the high-pressure water interface 14 and the high-pressure water pipe 8 ensures that the atomizing nozzle 11 can obtain sufficient pressure in any working environment to generate fine water mist, which can not only effectively settle the dust in the air, but also suppress the secondary lifting of dust to a certain extent, reducing the secondary impact on equipment and personnel.

[0056] The structure of the high-pressure water interface 14 generally includes a joint, one end of which is used to be tightly connected to the high-pressure water pipe 8 to ensure that the water pressure is not lost during the transmission process. The interface is designed with a waterproof and leak-proof sealing structure, and usually an O-ring or other types of seals are used to ensure the stability of the water pressure. The other end of the joint is connected to the outer ring water supply pipe 15 and the inner ring water supply pipe 16.

[0057] The high-pressure water pipe 8 is the water supply line in the whole system, which transmits water from the water source to the high-pressure water interface 14 in a high-pressure form, and then enters the outer circle water supply pipe 15 and the inner circle water supply pipe 16. The high-pressure water pipe 8 is usually made of high-pressure resistant material to ensure that it will not break or leak during the transmission process.

[0058] Multiple solenoid valves are provided on the outer circle water supply pipeline 15 and the inner circle water supply pipeline 16, and each solenoid valve is connected to the atomizing nozzle 11 in a one-to-one correspondence. Each solenoid valve can be independently controlled, allowing the controller 4 to open or close a specific atomizing nozzle 11 according to actual needs. The solenoid valve can not only control the on and off of the water flow, but also change the water output of the atomizing nozzle 11 by adjusting its opening. For example: suppose the dust concentration on the working surface suddenly increases, and the dust sensor 6 detects this change and transmits its data to the controller. After analyzing the data, the controller 4 determines that it is necessary to increase the spray volume and coverage to quickly reduce the dust concentration. Therefore, the controller sends an instruction to the solenoid valve related to the atomizing nozzle 11, requiring it to open and adjust to a suitable opening. After receiving the control signal, the solenoid valve adjusts its valve opening according to the instruction, allowing an appropriate flow of high-pressure water to pass through and reach the atomizing nozzle 11, and the atomizing nozzle 11 immediately produces a denser water mist, covering a wider range, and quickly reducing the dust concentration on the working surface. When the dust concentration returns to normal level, the controller 4 will adjust the opening of the solenoid valve again to reduce the spray volume, or close the outer ring solenoid valve to save water resources. Through this intelligent control, the solenoid valve can accurately control the spray state of the atomizing nozzle 11, while minimizing resource waste.

[0059] Specifically, the high-pressure water interface 14 and the atomizing nozzle 11 are respectively arranged on both sides of the axial direction of the outer ring water supply pipe 15 and / or on both sides of the axial direction of the inner ring water supply pipe 16 .

[0060] The high-pressure water interface 14 and the atomizing nozzle 11 are respectively arranged on both sides of the axial direction of the water supply pipeline. This design allows the high-pressure water pipe 8 to be efficiently connected to the water supply pipeline without affecting the arrangement of the atomizing nozzle 11. The high-pressure water interface 14 is separated from the atomizing nozzle 11, which can simplify the internal structure of the pipeline, avoid water pressure loss, and also facilitate pipeline maintenance and installation and adjustment of the atomizing nozzle 11.

[0061] Furthermore, the high-pressure water interface 14 is located on one side of the pipeline, which can ensure that the water pressure is uniform when entering the pipeline. The atomizing nozzle 11 is set on the other side, which can make full use of the water pressure in the pipeline to produce more uniform and finer water mist. This layout helps to maintain the uniformity of water mist density and distribution in the spray area and improve the dust removal effect.

[0062] Furthermore, the dust removal body also includes a dust removal device rear cover plate 9 and a dust removal device front cover plate 10, at least one of which is connected to the slider 12, and the outer ring water supply pipe 15 and the inner ring water supply pipe 16 are both connected to the dust removal device rear cover plate 9. The design of the dust removal device rear cover plate 9 and the dust removal device front cover plate 10 not only provides physical protection for the internal water supply pipe and the atomizing nozzle 11, avoids external impact and wear, and prolongs the service life of the equipment, but also plays a role in guiding the direction of the water mist through the optimization of its shape and position, so that the water mist is more concentrated in the high dust area, and the pertinence and efficiency of dust removal are improved.

[0063] In this embodiment, if Figure 2 As shown, the slider 12 is fixed on the rear cover plate 9 of the dust removal device so that the dust removal device can move along the slide rail 13. The front cover plate 10 of the dust removal device is positioned with the atomizing nozzle 11 through the hole on the cover plate, and is fixed to the rear cover plate 9 of the dust removal device to ensure the structural integrity and stability of the entire dust removal device. The outer ring water supply pipe 15 and the inner ring water supply pipe 16 are connected to the high-pressure water interface 14 on the rear cover plate 9 of the dust removal device to transfer high-pressure water from the water pump to the atomizing nozzle 11. When the system is started, the high-pressure water pipe 8 supplies water to the inner ring water supply pipe 16 and the outer ring water supply pipe 15 through the high-pressure water interface 14 on the rear cover plate 9 of the dust removal device.

[0064] Furthermore, the sensing device further includes a gas sensor 5, and the excavation working face environment management system further includes a ventilation duct 2, the first end of the ventilation duct 2 is connected to the environment outside the tunnel, the second end of the ventilation duct 2 is connected to the tunnel and is arranged close to the excavation working face, the first end of the ventilation duct 2 is provided with a fan 1, the gas sensor 5 is electrically connected to the controller 4, and the controller 4 is used to control the power of the fan 1 according to the gas detection value of the gas sensor 5. The power adjustment function of the gas sensor 5 and the fan 1 is integrated in the system, which can monitor the gas concentration in real time and automatically adjust the power of the fan 1 according to the concentration, so as to ensure that the gas concentration in the working environment is kept below the safe level, and effectively prevent the occurrence of safety accidents such as gas explosions.

[0065] The ventilation duct 2 is a channel connecting the outside environment of the tunnel with the excavation working face, and can adjust the ventilation volume according to the needs of the working face. One end of the ventilation duct 2 is connected to the outside environment of the tunnel, and the other end is close to the excavation working face to ensure that the gas can be effectively discharged.

[0066] The fan 1 is located at the external environment end of the ventilation duct 2. It generates strong suction through high-speed rotation to discharge the gas from the excavation working face through the ventilation duct 2. The power and speed of the fan 1 can be intelligently adjusted according to the instructions of the controller 4.

[0067] Gas sensors 5 are installed at multiple locations of the tunnel boring machine to ensure comprehensive monitoring of the gas conditions at the working face, and transmit data in real time to the controller 4 for processing. The controller 4 processes and analyzes the data and uploads the data to the display screen 3 for display. If the gas concentration is too high, the display screen 3 will give an alarm, alerting the operator to start spraying in time to reduce the concentration.

[0068] During the operation of the excavation working face, the gas sensor 5 detects that the gas concentration is gradually increasing. The gas sensor 5 sends these data to the controller 4 in real time. After analyzing the data, the controller 4 determines that the gas concentration exceeds the preset safety threshold. At this time, the controller 4 will send an instruction to the fan 1 to adjust its power so that the speed of the fan 1 increases. After the speed of the fan 1 increases, the wind speed in the ventilation duct 2 also increases, and the gas is quickly discharged from the excavation working face through the ventilation duct 2 to the environment outside the tunnel, reducing the gas concentration of the working face and reducing the risk of gas explosion. At the same time, the controller 4 will continue to monitor the gas concentration. Once the gas concentration drops below the safe level, the controller 4 will reduce the power of the fan 1 accordingly and slow down the ventilation speed. This can not only maintain a safe environment at the working face, but also effectively save power resources and optimize energy use.

[0069] In an optional embodiment, the excavation working face environmental management system is specifically an intelligent monitoring and protection system for dust and gas on the excavation working face, which includes an online monitoring module that monitors and collects gas and dust concentrations on the excavation working face in real time through sensors arranged in various places; a data processing center collects and processes the information collected by the sensors, and generates a warning message if the concentration is higher than the warning value; an intelligent scheduling module automatically generates an operation instruction based on the warning information; and an automatic protection module controls the dust reduction device and the excavation face ventilation device based on the received operation instruction to reduce the gas and dust concentration in the tunnel. The intelligent monitoring and protection system for dust and gas on the excavation working face automatically makes judgments based on the information collected by the sensors and intelligently adjusts the water mist dust reduction and ventilation devices, which greatly reduces manual participation, realizes the automation, intelligence, and unmanned operation of dust and gas detection and protection, and improves the safety of excavation face operations.

[0070] By adopting the technical solution of the present application, a dust and gas intelligent monitoring and protection system for an excavation working surface is provided, which is particularly suitable for the field of dust and gas monitoring and provides a reference for dust and gas monitoring and intelligent protection.

[0071] During the coal mining process, a large amount of dust is generated at the excavation face. High concentrations of dust are extremely harmful to the health of workers. Long-term inhalation of coal dust can easily cause workers to suffer from occupational diseases such as pneumoconiosis. Coal dust is also explosive at high concentrations, especially in closed excavation spaces. Coal dust is suspended in the air and may cause explosions once it encounters a fire source. At the same time, the gas escaping from the excavation face is a highly flammable gas. Once it encounters an open flame or electric spark, it is also very likely to cause an explosion, causing coal mine accidents and seriously threatening the lives of workers underground. Therefore, it is necessary to monitor and protect the gas and dust concentrations at the excavation face. At present, the monitoring system and the dust reduction and gas removal system are relatively independent. When the concentration is detected to be excessive, the dust reduction and gas removal equipment needs to be manually turned on to reduce the dust and gas concentration at the excavation face. Monitoring and protection are still in the semi-manual and semi-automatic stage, with low levels of intelligence and automation.

[0072] Therefore, it is necessary to design an intelligent dust and gas monitoring and protection system for the excavation working surface to realize the automation of monitoring and protection, improve the intelligence of dust and gas monitoring and protection, and reduce the use of manpower.

[0073] In an optional embodiment, in combination Figure 5 As shown, the excavation working face environment management system is used for intelligent monitoring and protection of dust and gas on the excavation working face. The excavation working face environment management system includes an online monitoring module, a data processing center, an intelligent scheduling module, and a safety protection module; the online monitoring module collects the dust and gas concentration of the excavation working face in real time through sensors arranged on the excavation face, and transmits the collected data to the data processing center; the data processing center receives the data from each module and analyzes and processes it, and displays it on the visualization system. At the same time, the data processing center makes instructions based on the received data and sends them to each module and system; the intelligent scheduling module automatically generates operation instructions based on the data transmitted by the data center; the safety protection module controls the operation of the ventilation device and the dust suppression device according to the operation instructions sent by the intelligent scheduling system to control the gas and dust concentration of the excavation working face within a safe range.

[0074] Preferably, the system includes a communication module, including functions such as data transmission, command transmission, and information sending, which is used for the online monitoring system to transmit sensor data to the data processing center; send the dust and gas concentration information processed by the data processing center to the intelligent scheduling module and send the alarm information to the operation and maintenance personnel; send the operation instructions of the intelligent scheduling module to the safety protection module and send the operation information to the data processing center.

[0075] Preferably, the online detection module includes fixed dust monitoring equipment and fixed gas monitoring equipment, which monitor the dust and gas data of the excavation face in real time through the installed sensors and transmit them to the database of the data processing center in real time through the data transmission device. The fixed dust monitoring equipment and the fixed gas monitoring equipment include multiple sensors installed at different sections of the excavation face and the excavator, respectively, to monitor the dust and gas concentration at various positions of the entire excavation face.

[0076] Preferably, the data processing center includes a database, a production equipment management system, an alarm system and a visualization system; the database is used to process and store the sensor data sent by the real-time monitoring system, and compare the processed data with the information in the database, and issue different degrees of early warning information according to the comparison results. At the same time, the database receives the operating status of the dust reduction device and the ventilation device in the safety protection module; the production equipment management system is used to manage and dispatch various production equipment in the excavation working face, including but not limited to equipment such as excavators; the alarm system is used to send early warning and alarm information to the operation and maintenance personnel; the visualization system is used to display the dust and gas concentration, early warning alarm information and the operation information of the production equipment and dust reduction and gas removal device on the excavation working face in real time on the screen, so as to realize the visualization of various data, so that the operation and maintenance personnel can intuitively understand the status of various equipment in the excavation working face and information such as gas and dust concentration, and make judgments quickly through the displayed data.

[0077] Preferably, the intelligent scheduling module includes a transceiver unit and a control unit, wherein the transceiver unit is used to receive the graded warning information transmitted from the data center and send the control instructions to the security protection system. The control unit generates different operation instructions according to the graded warning information.

[0078] Preferably, the safety protection module includes a dust suppression device and a ventilation device, which receives the operation instructions sent by the intelligent scheduling system to drive the dust suppression and ventilation devices. The dust suppression device uses water mist to reduce the dust concentration in the excavation working face, and the ventilation device uses a fan to introduce external air to reduce the gas concentration in the excavation working face.

[0079] After receiving the operation instruction to operate the dust reduction device and the ventilation device, the safety protection module transmits the operation status information of the device to the database of the data processing center for displaying the operation status information of the dust reduction and ventilation device in the visualization system.

[0080] After the safety protection system started working, the production equipment management system was still unable to reduce the dust and gas concentration in the excavation working face to a safe value. The production management system achieved the purpose of reducing the dust and gas concentration by scheduling production equipment, reducing production efficiency, and reducing the generation of dust and gas.

[0081] The present application also provides a high-pressure water mist dust suppression device and ventilation device for the excavation face, which includes a fan, ventilation duct, water pump, high-pressure water pipe, atomizing nozzle, etc. The high-pressure water mist dust suppression device is installed at the front end of the excavation machine, and the outer shell is installed with a slide rail module, which is connected to the cutting head of the excavation machine through the slide rail module. One end of the high-pressure water pipe is connected to the dust suppression device, and the other end is connected to the water pump; the ventilation device is installed at the top of the tunnel of the excavation working face, and the fan is installed outside the tunnel and connected to the ventilation duct, and the ventilation duct is connected to the working area of ​​the excavation machine.

[0082] Preferably, the high-pressure water pipe is covered with a protective shell; the slide rail module is covered with a dustproof shell.

[0083] The dust suppression device includes a water pump, a high-pressure water pipe, a slide rail module, a drive module, an atomizing nozzle, a control unit, etc. The dust suppression device is installed behind the working area of ​​the cutting head of the tunnel boring machine, and is connected to two high-pressure water pipes externally. There are two independent water supply pipelines inside, and the water supply pipelines are connected to the atomizing nozzle. The outer shell of the dust suppression device is annular, and the atomizing nozzles are arranged in two rows in a circular path and evenly crossed. The dust suppression device is controlled by control instructions to move forward and backward and the solenoid valve to adjust its spray coverage and water output.

[0084] Beneficial effects of the present application: The dust and gas concentration of the excavation working face is monitored in real time by the dust and gas monitoring equipment, and the monitoring data is transmitted to the data processing center. The data processing center sends the analyzed and processed information to the intelligent scheduling module to generate an operation instruction and send it to the safety protection device to turn on the dust reduction ventilation device. The automatic monitoring and protection system of the present application realizes the automation and intelligence of dust and gas monitoring and protection, greatly reduces manual participation, can be intelligently adjusted according to different dust and gas concentrations, and takes into account both work efficiency and safety.

[0085] This application is an intelligent monitoring and protection system for dust and gas on the excavation working face, hereinafter referred to as the monitoring and protection system. The software part of this system is deployed on a server, and the hardware part is installed on the excavation working face and the corresponding position of the operating equipment. The system can display the dust and gas concentration of the excavation working face, the working status of the production equipment and the operating status of the safety protection device through a visualization system. The operating personnel can remotely monitor the various data and the working status of the equipment in the excavation working face, and dispatch personnel for operation and maintenance according to the alarm information sent by the system.

[0086] like Figure 5This is a schematic diagram of the structure of the monitoring and protection system of this application. As shown in the figure, the system includes an online monitoring module, a data processing center, an intelligent scheduling module, and a safety protection module; the online monitoring module collects the dust and gas concentration of the excavation working face in real time through sensors arranged on the excavation face, and transmits the collected data to the data processing center; the data processing center receives the data collected by the sensors sent by the online monitoring system, processes and analyzes the data, generates multiple levels of early warning and alarm information based on the processed data, and sends the data to the intelligent scheduling module. The data processing center also includes a visualization system, a production equipment management system, and an alarm system, which are used to intuitively display various key data, manage and schedule production equipment, and send alarm information; the intelligent scheduling module automatically generates operation instructions based on the data transmitted by the data center, and sends the operation instructions to the safety protection module; the safety protection module controls the operation of the ventilation device and the dust reduction device according to the operation instructions sent by the intelligent scheduling system to control the gas and dust concentration of the excavation working face within a safe range.

[0087] It should be noted that Figure 5 The dotted line in the figure is the data information transmission path. The online monitoring module sends the dust and gas concentration data collected by the sensor to the data processing center, and the data processing center sends the processed data to the intelligent scheduling module. The intelligent scheduling module sends the generated operation instructions to the safety protection module, and the safety protection module transmits the operating status of the dust reduction and ventilation device to the data processing center for display on the visualization system.

[0088] The present application also provides a water mist dust suppression device and a ventilation device. The fan is fixed outside the tunnel and connected to the ventilation duct. The ventilation duct is fixed at the top of the tunnel and extends to the working position of the tunnel boring machine. The fan continuously transports the air outside the tunneling working face to the working area along the ventilation duct, thereby achieving the purpose of reducing the gas concentration through dilution. Dust sensors and gas sensors are installed on the tunnel boring machine. At the same time, sensors are also installed at other positions of the tunneling working face, which are not shown in the figure. The water mist dust suppression device is installed in the rear area of ​​the tunnel boring machine cutting head through a slide rail slider. While achieving follow-up dust suppression, it can also move forward and backward to adjust the dust suppression range. The slider is fixed on the rear cover plate of the dust suppression device. The front cover plate of the dust suppression device is positioned with the position of the atomizing nozzle through the hole on the cover plate, and is fixed to the rear cover plate of the dust suppression device. There are four atomizing nozzles arranged alternately on the inner and outer circles. The high-pressure water pipe is connected to the dust suppression device through flange bolts to provide water for dust suppression for the dust suppression device.

[0089] like Figure 6To monitor the work flow chart of the protection system, first, the fixed dust sensors and fixed gas sensors installed at various positions of the excavation working face and the tunnel boring machine continuously collect the dust and gas concentration data at various positions of the excavation working face, and transmit the data to the data processing center through the communication module. The data processing center processes and analyzes the collected dust and gas concentration data, compares the data in the database, determines whether the concentration exceeds the standard and the degree of exceeding the standard, and transmits the data to the visualization system of the data processing center for display. If the concentration does not exceed the standard, the real-time monitoring system continues to monitor the dust and gas concentration of the excavation working face. If the concentration exceeds the standard, the analyzed and processed data is sent to the intelligent scheduling module. The intelligent scheduling module generates an operation instruction according to the degree of concentration exceeding the standard and sends it to the safety protection system. The safety protection system receives the operation instruction, operates the dust removal device and ventilation transposition to reduce the dust and gas concentration of the excavation working face, and sends the operation status information of the dust removal device and the ventilation device to the processing center database for recording and display in the visualization system. Afterwards, the real-time detection system continues to monitor the dust and gas concentration data in the excavation working face. If the data processing center determines that the water mist dust reduction device and the ventilation device are running at full power but the concentration has not decreased compared to before, the production equipment management system of the data processing center will reduce the operating efficiency of the tunnel boring machine and other production equipment, and notify the management personnel through the alarm system to conduct manual intervention. According to the concentration information displayed on the visualization system, the operating status of the safety protection device, and the operating status of the production equipment, a solution is formulated and operation and maintenance personnel are dispatched to handle it.

[0090] In summary, if Figure 4 The figure shows the workflow of the excavation working face environment management system. The steps of using the system are as follows:

[0091] S1, real-time monitoring data through dust sensor 6 and gas sensor 5;

[0092] S2, sending the monitored data to the controller 4, analyzing and processing it, and then displaying it on the display screen 3;

[0093] S3. Determine whether the dust concentration and gas concentration are higher than the preset threshold value. If the dust concentration is greater than the preset threshold value, move the dust removal device backward and open all the solenoid valves; if the gas concentration is greater than the preset threshold value, increase the speed of the fan 1 to quickly discharge the others from the ventilation duct 2; when the dust and gas concentrations are too high, an alarm is issued on the display screen 3 to remind the operator while the dust and gas concentrations are being reduced.

[0094] If the dust concentration is less than the preset threshold, the dust removal device is moved forward and the outer ring solenoid valve is closed; if the gas concentration is less than the preset threshold, the speed of fan 1 is reduced;

[0095] S4. Continuously monitor the dust concentration and gas concentration, and repeat the above steps S1-S3 according to the concentration changes.

[0096] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0097] 1. By integrating dust and gas monitoring systems, intelligent gas removal systems and intelligent spray dust removal systems, the automatic and intelligent monitoring and protection of dust and gas in the excavation working face are realized, which significantly improves work efficiency, effectively improves the working environment of the excavation working face, reduces the impact of dust on workers' health, and reduces the need for manual intervention.

[0098] 2. The dust and gas concentrations are monitored in real time through dust sensors and gas sensors, and the controller is used to analyze and adjust the fan speed and the water output and coverage of the atomizing nozzle, which can accurately control the fan speed, the water output and the coverage of the atomizing nozzle, thereby achieving the best balance between dust removal and gas removal efficiency and energy consumption, and reducing operating costs.

[0099] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0100] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0101] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunneling working face environment management system, characterized in that: include: A sensor device, the sensor device being arranged on the tunneling machine, and comprising a dust sensor (6); A dust removal device (7), the dust removal device (7) being arranged on the cantilever of the tunnel boring machine, the dust removal device (7) and the cantilever being arranged to be relatively movable in a first direction, so that the dust removal range of the dust removal device (7) can be adjusted; A controller (4), wherein the controller (4) is electrically connected to the sensor device and the dust removal device (7), and the controller (4) is used to control the motion parameters of the dust removal device (7) according to the detection signal of the sensor device, wherein the motion parameters include at least one of a motion stroke, a motion direction and a motion speed.

2. The excavation working face environment management system according to claim 1, characterized in that: The dust removal device (7) comprises: A slide rail (13), the slide rail (13) being connected to the cantilever, and the slide rail (13) extending along the length direction of the cantilever; A slider (12), the slider (12) being connected to the slide rail (13); A dust removal body, wherein the dust removal body is connected to the slider (12).

3. The excavation working face environment management system according to claim 2, characterized in that: The dust removal body comprises: Outer ring water supply pipe (15); An inner ring water supply pipeline (16), wherein the inner ring water supply pipeline (16) is located inside the outer ring water supply pipeline (15); The outer ring water supply pipe (15) and the inner ring water supply pipe (16) are both annular structures. A plurality of atomizing nozzles (11) are arranged on at least one of the outer ring water supply pipe (15) and the inner ring water supply pipe (16). The plurality of atomizing nozzles (11) are arranged at intervals along the annular direction of the outer ring water supply pipe (15) or the annular direction of the inner ring water supply pipe (16). The atomizing nozzles (11) are used to spray the liquid in the outer ring water supply pipe (15) or the liquid in the inner ring water supply pipe (16) toward a target area, and the target area includes at least one of an excavation working face and a tunnel space.

4. The excavation working face environment management system according to claim 3, characterized in that: The outer ring water supply pipe (15) and the inner ring water supply pipe (16) are arranged to be relatively rotatable.

5. The excavation working face environment management system according to claim 3, characterized in that: The outer ring water supply pipe (15) and the inner ring water supply pipe (16) are both provided with a plurality of atomizing nozzles (11); the plurality of atomizing nozzles (11) on the outer ring water supply pipe (15) are arranged in the same direction; the plurality of atomizing nozzles (11) on the inner ring water supply pipe (16) are arranged in the same direction; the direction of the atomizing nozzles (11) on the outer ring water supply pipe (15) is opposite to the direction of the atomizing nozzles (11) on the inner ring water supply pipe (16).

6. The excavation working face environment management system according to claim 3, characterized in that: The multiple atomizing nozzles (11) on the inner ring water supply pipe (16) are arranged in different directions, and / or the multiple atomizing nozzles (11) on the outer ring water supply pipe (15) are arranged in different directions.

7. The excavation working face environment management system according to claim 3, characterized in that: The outer ring water supply pipeline (15) and the inner ring water supply pipeline (16) are both provided with a high-pressure water interface (14), and the high-pressure water interface (14) is used to connect to the high-pressure water pipe (8).

8. The excavation working face environment management system according to claim 7, characterized in that: The high-pressure water interface (14) and the atomizing nozzle (11) are respectively arranged on both sides of the axial direction of the outer ring water supply pipeline (15) and / or on both sides of the axial direction of the inner ring water supply pipeline (16).

9. The excavation working face environment management system according to claim 3, characterized in that: The dust removal body also includes a dust removal device rear cover plate (9) and a dust removal device front cover plate (10), at least one of the dust removal device rear cover plate (9) and the dust removal device front cover plate (10) is connected to the slider (12), and the outer ring water supply pipe (15) and the inner ring water supply pipe (16) are both connected to the dust removal device rear cover plate (9).

10. The excavation working face environment management system according to claim 1, characterized in that: The sensing device further comprises a gas sensor (5), and the excavation working face environment management system further comprises a ventilation duct (2), wherein a first end of the ventilation duct (2) is connected to the environment outside the tunnel, and a second end of the ventilation duct (2) is connected to the tunnel and is arranged close to the excavation working face. A fan (1) is arranged at the first end of the ventilation duct (2), and the gas sensor (5) is electrically connected to the controller (4), and the controller (4) is used to control the power of the fan (1) according to the gas detection value of the gas sensor (5).

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