Coal mine dust treatment system and method based on environmental factors

Abstract

The invention discloses a coal mine dust treatment system and method based on environmental factors, the treatment system comprises a supporting module, a spraying module, a water supply module, a monitoring module and a control module, the supporting module is installed on the peripheral wall of a roadway, the spraying module is connected with the supporting module, the water supply module is connected with the spraying module, and the monitoring module is connected with the control module. Water is sprayed out through the spraying module and forms a water curtain, the monitoring module is used for monitoring environment data, and the control module receives the environment data and regulates and controls the water supply duration and the spraying angle according to the environment data. The spraying module is used for conducting spraying and dust falling on the section of the roadway, the influence of airflow field migration on dust field diffusion is reduced, the underground operation environment is improved, and the body health of workers is guaranteed. And moreover, the spraying amount and the spraying angle are adaptively regulated and controlled according to the monitored environmental data, the accuracy and effectiveness of dust falling operation are improved, water resources are reasonably utilized, and environmental protection is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and in particular to a coal mine dust control system and method based on environmental factors. Background Art

[0002] Dust pollution in the tunnels of coal mine excavation faces has always been a serious problem that threatens the occupational health and safety of underground workers and the safe and efficient production of mines. The hazards of dust are mainly reflected in two aspects. First, dust can spontaneously combust or even explode under certain conditions. Second, workers inhale industrial dust for a long time and deposit it in the lungs, causing diffuse fibrosis of lung tissue and causing pneumoconiosis.

[0003] The fully-mechanized excavation working face is the main place of dust pollution in coal mines. The high-speed airflow carries the cutting dust to other working areas at the rear of the tunnel and spreads it, resulting in serious dust pollution at the production site. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a coal mine dust control system based on environmental factors to achieve the purpose of reasonably reducing dust concentration.

[0006] The coal mine dust control system based on environmental factors of the embodiment of the present invention includes:

[0007] A support module, wherein the support module is installed on the peripheral wall of the coal mine tunnel along the contour of the tunnel;

[0008] A spraying module, the spraying module is connected to the supporting module, and the spraying angle of the spraying module is adjustable;

[0009] A water supply module, the water supply module is connected to the spray module to spray water through the spray module to form a water curtain;

[0010] A monitoring module, which is arranged in a coal mine tunnel and is used to monitor environmental data in the tunnel;

[0011] A control module, wherein the control module is connected to the monitoring module to receive environmental data, and the control module is also connected to the water supply module and the spraying module to adjust the water supply duration of the water supply module and the spraying angle of the spraying module according to the environmental data.

[0012] The coal mine dust control system based on environmental factors in the embodiment of the present invention utilizes a spraying module to perform spray dust reduction on the tunnel section, thereby reducing the impact of wind field movement on dust field diffusion, improving the underground working environment, and ensuring the health of the workers.

[0013] In addition, the spraying volume and spraying angle can be adaptively adjusted according to the monitored environmental data to improve the accuracy and effectiveness of dust reduction operations, rationally utilize water resources, and benefit environmental protection.

[0014] In some embodiments, the support module includes a frame, the frame is arc-shaped, and the frame is fixedly connected to the top of the tunnel.

[0015] In some embodiments, the spray module includes a water outlet pipe and a nozzle, the water outlet pipe is connected to the frame, and the nozzle is arranged at the outlet end of the water outlet pipe.

[0016] In some embodiments, the spray module also includes a driving member and a connecting member, the water outlet pipe is a corrugated pipe, the water outlet pipe is clamped on the connecting member, the driving member is fixed on the frame, the driving member is connected to the connecting member, and the driving member is used to drive the connecting member to move in a vertical direction.

[0017] In some embodiments, there are multiple spray modules, and the multiple spray modules are distributed at intervals along the direction of the frame.

[0018] In some embodiments, the water supply module includes a water supply pipe and a control valve disposed on the water supply pipe, one end of the water supply pipe is connected to a water source, and the other end of the water supply pipe is connected to an inlet end of the water outlet pipe.

[0019] An embodiment of the present invention further provides a method for coal mine dust control based on environmental factors, and the method is used for the coal mine dust control system based on environmental factors described in any of the above embodiments.

[0020] The method for controlling coal mine dust based on environmental factors in an embodiment of the present invention includes:

[0021] Using the monitoring module to monitor environmental data in the lane, and transmitting the monitored environmental data to the control module, so that the control module regulates the water supply module and the spraying module according to the environmental data;

[0022] Among them, the lower limit value of the environmental data is proportional to the water supply time of the water supply module, and the upper limit value of the environmental data is inversely proportional to the water supply time of the water supply module.

[0023] In some embodiments, the environmental data monitored by the monitoring module includes dust concentration, gas concentration, temperature and humidity in the tunnel.

[0024] In some embodiments, when the dust concentration monitored by the monitoring module is within a preset range, the spraying direction of the spraying module is in cross-flow contact with the wind flow direction in the tunnel.

[0025] In some embodiments, when the dust concentration monitored by the monitoring module is higher than a preset range value, the spraying direction of the spraying module is in countercurrent contact with the wind flow direction in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a coal mine dust control system based on environmental factors according to an embodiment of the present invention.

[0027] Figure 2 It is a partial schematic diagram of a coal mine dust control system based on environmental factors according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] 1-support module, 11-frame,

[0030] 2-spraying module, 21-water outlet pipe, 22-sprinkler, 23-driving member, 24-connecting member. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] The following describes a coal mine dust control system based on environmental factors according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0033] The coal mine dust control system based on environmental factors of the embodiment of the present invention includes: a support module 1, a spraying module 2, a water supply module, a monitoring module and a control module.

[0034] Among them, Figure 1 and Figure 2 As shown, the support module 1 is installed on the peripheral wall of the coal mine tunnel along the contour of the tunnel. The spray module 2 is connected to the support module 1, and the spray angle of the spray module 2 is adjustable.

[0035] The water supply module is connected to the spray module 2, and the water supply module is used to supply water to the spray module 2, so that the water is sprayed out through the spray module 2 and forms a water curtain to achieve the effect of dust reduction.

[0036] Therefore, by establishing underground coal mine water curtain equipment arranged along the tunnel contour, it is possible to spray dust reduction on the tunnel section in all aspects, reduce the impact of wind field movement on dust field diffusion, improve the underground working environment, and ensure the health of the workers.

[0037] The monitoring module is arranged in the coal mine tunnel, and the monitoring module is used to monitor the environmental data in the tunnel, such as the dust concentration, gas concentration, temperature and humidity in the tunnel. The control module is connected to the monitoring module, and the control module receives and processes the monitored environmental data. The control module is also connected to the water supply module and the spraying module 2, and the control module adjusts the water supply time of the water supply module according to the environmental data, that is, adjusts the spraying amount, and the control module adjusts the spraying angle of the spraying module 2 according to the environmental data.

[0038] For example, the dust concentration is judged to be above the standard based on the humidity of the ambient airflow, so as to decide the continuous spraying time of the system, so as to ensure that the underground airflow is at a low dust concentration for a long time, thus ensuring the personal safety of the workers and reducing the probability of illness of the workers. In addition, the spraying volume is changed according to the environmental data, and water resources are used rationally, which is beneficial to environmental protection.

[0039] Therefore, the system of the present invention is suitable for the measurement and management of the air volume of mine ventilation systems, for scientific calculation of daily mine air adjustment and control plans, and for realizing mine air adjustment and control through automated remote control technology, for joint regulation of ventilation equipment groups, and for achieving safe regulation of air volume at multiple locations at the same time, which can meet the different conditions of different mines and different tunnels.

[0040] In addition, from the perspective of economic benefit analysis, the system of the present invention is one of the ways to realize the intelligent construction of the tunnel safety system, which makes the underground equipment transportation management more accurate, controllable, and real-time. Its control form can also adapt to various tunnel forms and can be promoted in various mine tunnels. At the same time, as an intelligent system management model, it also has great promotion and application value.

[0041] In some embodiments, Figure 1 and Figure 2 As shown, the support module 1 includes a frame 11, which is arc-shaped and fixedly connected to the top of the tunnel.

[0042] It is understandable that the frame 11 is installed at the top of the tunnel to reduce interference with the passage of people and vehicles in the tunnel. In addition, the curved frame 11 helps to achieve more uniform and comprehensive spray coverage and improve the efficiency of water sprinkling and dust reduction. The curved structure can better adapt to the shape of the tunnel top and increase the contact area with the top, thereby improving the stability and safety of the frame 11 and reducing damage to the frame 11 caused by rock displacement or structural changes at the tunnel top.

[0043] In some embodiments, Figure 1 and Figure 2 As shown, the spray module 2 includes a water outlet pipe 21 and a nozzle 22. The water outlet pipe 21 is fixed on the frame 11, and the nozzle 22 is arranged at the outlet end of the water outlet pipe 21, so that water is transported to the nozzle 22 through the water outlet pipe 21 and sprayed out. It should be noted that the nozzle 22 is an atomizing nozzle 22 so as to form a water curtain.

[0044] Furthermore, the spray module 2 also includes a driving member 23 and a connecting member 24. The water outlet pipe 21 is a corrugated pipe, and the water outlet pipe 21 is clamped on the connecting member 24. The driving member 23 is fixed on the frame 11, and the driving member 23 is connected to the connecting member 24. The driving member 23 is used to drive the connecting member 24 to move in the vertical direction.

[0045] It is understandable that the bellows can be bent, and the driving member 23 drives the connecting member 24 to move, thereby driving the bending angle of the bellows, thereby adjusting the spraying angle.

[0046] Optionally, the driving member 23 is an electric control element such as a screw lifting device, a cylinder, etc., so as to realize automatic adjustment of the spraying angle.

[0047] Furthermore, there are multiple spraying modules 2, and the multiple spraying modules 2 are distributed at intervals along the direction of the frame 11, so as to provide water sprinkling and dust reduction effect and uniformity.

[0048] In some embodiments, the water supply module includes a water supply pipe and a control valve disposed on the water supply pipe, one end of the water supply pipe is connected to a water source, and the other end of the water supply pipe is connected to the inlet end of the water outlet pipe 21. By adjusting the opening and closing of the control valve, the water supply duration is controlled, thereby achieving controllability of the system.

[0049] The following describes a method for controlling coal mine dust based on environmental factors according to an embodiment of the present invention. The method is used in a system for controlling coal mine dust based on environmental factors in any of the above embodiments.

[0050] The method for controlling coal mine dust based on environmental factors in an embodiment of the present invention includes:

[0051] Using the monitoring module to monitor the environmental data in the lane, and transmitting the monitored environmental data to the control module, so that the control module can adjust the water supply module and the spraying module 2 according to the environmental data;

[0052] Among them, the environmental data monitored by the monitoring module include dust concentration, gas concentration, temperature and humidity in the tunnel. The lower limit value of the environmental data is proportional to the water supply time of the water supply module, and the upper limit value of the environmental data is inversely proportional to the water supply time of the water supply module.

[0053] It is understandable that when controlling the dust concentration in coal mines, multiple environmental data in the underground monitoring pit are referenced to ensure the effectiveness and pertinence of the control measures. Environmental data specifically include dust concentration, humidity and temperature, gas concentration, etc. It is necessary to monitor multiple environmental data such as dust concentration, humidity and temperature, gas concentration, etc. through various sensors to determine the basis for control.

[0054] The dust concentration, humidity, temperature and gas concentration are monitored by the coal mine multi-parameter sensor, and the upper and lower limits of the monitoring values ​​of dust concentration, humidity, temperature and gas concentration are set in the coal mine multi-parameter sensor, so that the lower limit value of dust concentration, humidity, temperature and gas concentration is proportional to the continuous spraying time, and the upper limit value of dust concentration, humidity, temperature and gas concentration is inversely proportional to the continuous spraying time.

[0055] Therefore, when the dust concentration, humidity, temperature and gas concentration are low, the extended spraying time can fully reduce the dust concentration, so that the dust concentration in the environment can remain at a low concentration for a long time, ensuring the personal safety of workers and reducing the probability of illness of workers.

[0056] It should be noted that the system sets the upper limit of the monitoring value inversely proportional to the continuous spray time, mainly based on the following considerations:

[0057] When the monitored values ​​are high, that is, the dust concentration, humidity and temperature, and gas concentration in the environment exceed the set upper limits, it indicates that the current environmental conditions may have posed a threat to the health and safety of miners. Therefore, the system will take emergency measures to reduce the risk as quickly as possible. Shortening the spray time is a quick response mechanism in this case, which can quickly reduce the concentration of certain parameters to prevent the occurrence of dangerous situations.

[0058] If the monitoring value is already high, increasing the spray time may result in a waste of resources and may not necessarily significantly increase the rate of improvement, because at high concentrations, a rapid response is required rather than a long spray time.

[0059] When the monitored value is high, the system can monitor and adjust environmental parameters more frequently by shortening the spray time, so as to respond to environmental changes in real time and quickly reduce the concentration of harmful substances.

[0060] When the monitoring value is high, too long spraying time may cause unnecessary energy consumption. Shortening the spraying time can reduce energy use without affecting safety.

[0061] If the spray time is proportional to the monitored value, when the environmental parameter exceeds the standard, the system response will become sluggish, which may delay the timely handling of dangerous situations. With the inverse setting, the system can respond to environmental changes more quickly and improve its ability to handle dangerous situations.

[0062] In some embodiments, when the dust concentration monitored by the monitoring module is within a preset range, the spraying direction of the spraying module 2 forms a certain angle with the wind direction in the tunnel (that is, cross-flow contact), which helps the water mist to fully contact with the dust particles in the wind, promotes the wetting and condensation of the dust, and makes it easier to fall to the ground, while reducing the situation where the water mist is quickly carried away by the wind, thereby improving the dust reduction efficiency.

[0063] When the dust concentration monitored by the monitoring module is higher than the preset range value, the spraying direction of the spraying module 2 is opposite to the wind direction in the tunnel (that is, countercurrent contact), which can effectively prevent dust particles from spreading with the wind, increase the contact time between water mist and dust particles, and improve the wetting and dust reduction effect. At the same time, countercurrent spraying also helps to form a water curtain in the tunnel to further block the spread of dust.

[0064] Therefore, by adjusting the spraying strategy according to the real-time monitoring results of dust concentration, the dust reduction process can be controlled more accurately and the dust reduction efficiency can be improved. When the dust concentration is within a safe range, cross-flow spraying can be used to reduce the use of water resources, and when the dust concentration is high, countercurrent spraying can be used to increase the dust reduction effect and avoid the waste of resources. Through effective dust reduction, the air quality in the tunnel can be improved, providing a safer and healthier working environment for operators. This intelligent spraying method reduces manual intervention, improves the automation level of tunnel management, and reduces labor costs and operational risks.

[0065] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A coal mine dust control system based on environmental factors, characterized in that: include: A support module, wherein the support module is installed on the peripheral wall of the coal mine tunnel along the contour of the tunnel; A spraying module, the spraying module is connected to the supporting module, and the spraying angle of the spraying module is adjustable; A water supply module, the water supply module is connected to the spray module to spray water through the spray module to form a water curtain; A monitoring module, which is arranged in a coal mine tunnel and is used to monitor environmental data in the tunnel; A control module, wherein the control module is connected to the monitoring module to receive environmental data, and the control module is also connected to the water supply module and the spraying module to adjust the water supply duration of the water supply module and the spraying angle of the spraying module according to the environmental data.

2. The coal mine dust control system based on environmental factors according to claim 1 is characterized in that: The support module comprises a frame body, the frame body is arc-shaped, and the frame body is fixedly connected to the top of the lane.

3. The coal mine dust control system based on environmental factors according to claim 2 is characterized in that: The spray module comprises a water outlet pipe and a spray head. The water outlet pipe is connected to the frame, and the spray head is arranged at the outlet end of the water outlet pipe.

4. The coal mine dust control system based on environmental factors according to claim 3 is characterized in that: The spray module also includes a driving member and a connecting member. The water outlet pipe is a corrugated pipe. The water outlet pipe is clamped on the connecting member. The driving member is fixed on the frame. The driving member is connected to the connecting member. The driving member is used to drive the connecting member to move in a vertical direction.

5. The coal mine dust control system based on environmental factors according to claim 4 is characterized in that: There are a plurality of spray modules, and the plurality of spray modules are distributed at intervals along the direction of the frame.

6. The coal mine dust control system based on environmental factors according to claim 3 is characterized in that: The water supply module comprises a water supply pipe and a control valve arranged on the water supply pipe, one end of the water supply pipe is connected to a water source, and the other end of the water supply pipe is connected to the inlet end of the water outlet pipe.

7. A method for controlling coal mine dust based on environmental factors, characterized in that: The method is used in a coal mine dust control system based on environmental factors according to any one of claims 1 to 6, and the method comprises: Using the monitoring module to monitor environmental data in the lane, and transmitting the monitored environmental data to the control module, so that the control module regulates the water supply module and the spraying module according to the environmental data; Among them, the lower limit value of the environmental data is proportional to the water supply time of the water supply module, and the upper limit value of the environmental data is inversely proportional to the water supply time of the water supply module.

8. The method for controlling coal mine dust based on environmental factors according to claim 7, characterized in that: The environmental data monitored by the monitoring module include dust concentration, gas concentration, temperature and humidity in the tunnel.

9. The method for controlling coal mine dust based on environmental factors according to claim 8, characterized in that: When the dust concentration monitored by the monitoring module is within a preset range, the spraying direction of the spraying module is in cross-flow contact with the wind flow direction in the tunnel.

10. The method for controlling coal mine dust based on environmental factors according to claim 8, characterized in that: When the dust concentration monitored by the monitoring module is higher than a preset range value, the spraying direction of the spraying module is in countercurrent contact with the wind flow direction in the lane.

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