Ventilation equipment with safety monitoring function for coal mine

Abstract

The utility model relates to the technical field of mine ventilation, in particular to a coal mine ventilation device with a safety monitoring function, which comprises a pipeline, a fan and a monitoring connection unit. The monitoring connection unit comprises a mounting seat, a bolt rod, a fixed seat, a moving block, a spring, a gas concentration sensor, a carbon monoxide concentration sensor, an oxygen concentration sensor, a filtering assembly and an auxiliary assembly, the moving block is pushed leftwards during use, the spring is compressed in cooperation with the side wall of a sliding groove, and the bolt rod is inserted into a sliding hole; the moving block is loosened and enters the inserting hole under the counter-acting force of the spring, the draught fan is started to extract air in the mine hole into the pipeline, the gas is blown to the installation base, the gas concentration sensor, the carbon monoxide concentration sensor and the oxygen concentration sensor monitor components contained in the gas in real time, and the content of the gas at the bottom of the mine hole is obtained in this way. The occurrence of safety accidents can be effectively reduced, and the life safety of miners is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation technology, and in particular to a ventilation device for coal mines with safety monitoring function. Background Technology

[0002] When coal mines are being mined underground, the ventilation equipment used in coal mines is mainly used to deliver enough fresh air underground to increase the oxygen concentration in the mine to meet the oxygen needs of the personnel working in the mine. However, the existing equipment cannot adsorb dust and coal ash in the air during ventilation, which affects the air quality at the bottom.

[0003] The prior art patent application with authorization publication number CN220451934U discloses a ventilation device for coal mines, including a frame body and a dust collection mechanism. The frame body is welded with connecting blocks, the connecting blocks are provided with fixing holes and slots, and the slots are equipped with filter screens. The filter cloth in the device adsorbs coal powder in the air during ventilation, which can better maintain the purity of the air inside the device during ventilation, thereby improving the ventilation efficiency.

[0004] However, in the aforementioned existing technologies, changes in the concentration of harmful gases such as methane and carbon monoxide in the complex environment of underground coal mines cannot be detected in a timely manner, which can easily lead to safety accidents and seriously threaten the lives of miners. Utility Model Content

[0005] The purpose of this utility model is to provide a ventilation device for coal mines with safety monitoring function, which aims to solve the problem that in the complex environment of underground coal mines, changes in the concentration of harmful gases such as methane and carbon monoxide cannot be detected in time, which can easily lead to safety accidents and seriously threaten the lives of miners.

[0006] To achieve the above objectives, this utility model provides a ventilation device for coal mines with safety monitoring functions, including a pipe, a fan, and a monitoring connection unit. The monitoring connection unit includes a mounting base, a pin, a fixed base, a moving block, a spring, a gas concentration sensor, a carbon monoxide concentration sensor, an oxygen concentration sensor, a filter assembly, and auxiliary components. The fan is disposed on the inner wall of the pipe, and the monitoring connection unit is connected to the pipe. The mounting base is disposed on the inner wall of the pipe, and the pin is fixedly connected to the mounting base and located below the mounting base. The pipe has a sliding hole, which slidably engages with the pin. The mounting base is fixedly connected to the pipe and located below the pipe. The mounting base has a sliding groove that slidably engages with the moving block. The spring is fixedly connected to both the mounting base and the moving block. The pin has a insertion hole that slidably engages with the moving block. The gas concentration sensor is fixedly connected to the mounting base and located above the mounting base. The carbon monoxide concentration sensor is fixedly connected to the mounting base and located above the mounting base. The oxygen concentration sensor is fixedly connected to the mounting base and located above the mounting base. The filter assembly is connected to the pipe. The auxiliary assembly is connected to the pipe.

[0007] The filter assembly includes a filter plate, a sealing plate, and connecting bolts. The pipe has a strip-shaped hole that slides with the filter plate. The sealing plate is fixedly connected to the filter plate and is located below the filter plate. The connecting bolts are threadedly connected to the sealing plate and the pipe in sequence.

[0008] The filter assembly includes a side plate and a support plate. The side plate is fixedly connected to the pipe and located on the inner wall of the pipe. The side plate is in contact with the filter plate. The support plate is fixedly connected to both the pipe and the side plate.

[0009] The auxiliary components include an audible and visual alarm and a controller. The audible and visual alarm is detachably connected to the pipe and located below the pipe, while the controller is fixedly connected to the pipe and located below the pipe.

[0010] The auxiliary components also include a mounting bracket and connecting ribs. The mounting bracket is fixedly connected to the pipe and located above the pipe. The connecting ribs are fixedly connected to both the pipe and the mounting bracket.

[0011] This utility model discloses a coal mine ventilation device with safety monitoring function. In use, pushing the movable block to the left compresses the spring against the side wall of the slide groove. At this time, the pin is inserted into the sliding hole. Releasing the movable block, under the reaction force of the spring, causes it to enter the insertion hole, thus fixing the mounting base. The fan is then activated to draw air from the mine into the pipe, which, after passing through the filter assembly, is blown onto the mounting base. During this process, the gas concentration sensor, carbon monoxide concentration sensor, and oxygen concentration sensor monitor the concentrations of gas, carbon monoxide, and oxygen in the gas in real time. The auxiliary components are used to fix the pipe and alert miners inside the mine. By obtaining information about the gas content at the bottom of the mine in this way, the occurrence of safety incidents can be effectively reduced, ensuring the safety of miners. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a structural schematic diagram of a coal mine ventilation device with safety monitoring function according to this utility model.

[0014] Figure 2 This is a right view of the ventilation equipment for coal mines with safety monitoring function according to this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0017] 101-Pipe, 102-Fan, 103-Mounting base, 104-Pin rod, 105-Fixed base, 106-Moving block, 107-Spring, 108-Gas concentration sensor, 109-Carbon monoxide concentration sensor, 110-Oxygen concentration sensor, 111-Filter plate, 112-Sealing plate, 113-Connecting bolt, 114-Side plate, 115-Support plate, 116-Audible and visual alarm, 117-Controller, 118-Mounting bracket, 119-Connecting rib, 120-Sliding hole, 121-Sliding groove, 122-Insertion hole, 123-Strip hole. Detailed Implementation

[0018] Please see Figures 1 to 4 ,in, Figure 1 This is a structural schematic diagram of a coal mine ventilation device with safety monitoring function according to this utility model. Figure 2This is a right view of the ventilation equipment for coal mines with safety monitoring function according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0019] This utility model provides a ventilation device for coal mines with safety monitoring function, including a pipe 101, a fan 102, and a monitoring connection unit. The monitoring connection unit includes a mounting base 103, a pin rod 104, a fixed base 105, a moving block 106, a spring 107, a gas concentration sensor 108, a carbon monoxide concentration sensor 109, an oxygen concentration sensor 110, a filter assembly, and auxiliary components. The filter assembly includes a filter plate 111, a sealing plate 112, connecting bolts 113, a side plate 114, and a support plate 115. The auxiliary components include an audible and visual alarm 116, a controller 117, a mounting bracket 118, and connecting ribs 119. The pipe 101 has a sliding hole 120, the fixed base 105 has a sliding groove 121, the pin rod 104 has a insertion hole 122, and the pipe 101 has a strip-shaped hole 123.

[0020] The fan 102 is disposed on the inner wall of the pipe 101, and the monitoring connection unit is connected to the pipe 101; the mounting base 103 is disposed on the inner wall of the pipe 101, the pin rod 104 is fixedly connected to the mounting base 103 and located below the mounting base 103, the pipe 101 has a sliding hole 120, the sliding hole 120 is slidably engaged with the pin rod 104, the fixed base 105 is fixedly connected to the pipe 101 and located below the pipe 101, the fixed base 105 has a sliding groove 121, the sliding groove 121 is slidably engaged with the moving block 106, and the springs 107 respectively... The pin rod 104 is fixedly connected to the fixed base 105 and the movable block 106. The pin 104 has a socket 122, which is slidably engaged with the movable block 106. The gas concentration sensor 108 is fixedly connected to the mounting base 103 and is located above the mounting base 103. The carbon monoxide concentration sensor 109 is fixedly connected to the mounting base 103 and is located above the mounting base 103. The oxygen concentration sensor 110 is fixedly connected to the mounting base 103 and is located above the mounting base 103. The filter assembly is connected to the pipe 101. The auxiliary assembly is connected to the pipe 101.

[0021] In this embodiment, when in use, the moving block 106 is pushed to the left, which, in conjunction with the side wall of the slide groove 121, compresses the spring 107. At this time, the pin rod 104 is inserted into the slide hole 120. The moving block 106 is released and, under the reaction force of the spring 107, enters the insertion hole 122, thus fixing the mounting base 103. The blower 102 is started to draw air from the mine into the pipe 101. After being filtered by the filter assembly, the air is blown onto the mounting base 103. During this process, the gas concentration sensor 108, the carbon monoxide concentration sensor 109, and the oxygen concentration sensor 110 monitor the concentrations of gas, carbon monoxide, and oxygen in the gas in real time. The auxiliary components are used to fix the pipe 101 and to alert the workers in the mine. By knowing the gas content at the bottom of the mine in this way, the occurrence of safety incidents can be effectively reduced, and the lives of miners can be protected.

[0022] The gas concentration sensor 108 can be an MJC4 / 3.0 type catalytic combustion gas sensor, which has the characteristics of high sensitivity and high accuracy. It can quickly and accurately detect the gas concentration in the air in coal mines. Its measurement range is usually 0-4.0% CH4, and it is suitable for real-time monitoring of gas concentration in coal mines.

[0023] The carbon monoxide concentration sensor 109 is recommended to be the GTH1000 infrared carbon monoxide sensor. This sensor is based on the principle of infrared absorption and has the advantages of fast response speed, high measurement accuracy and strong resistance to poisoning. It can effectively avoid sensor failure caused by gas poisoning.

[0024] The oxygen concentration sensor 110 can be an MG811 electrochemical oxygen sensor. This sensor uses electrochemical principles and features small size, low power consumption, and accurate measurement. It can accurately measure the oxygen content in the air in coal mines, with a measurement range of 0-25% VOL. It can monitor changes in underground oxygen concentration in real time and provide reliable data to ensure the breathing safety of miners.

[0025] Furthermore, the pipe 101 has a strip-shaped hole 123, which is slidably engaged with the filter plate 111. The sealing plate 112 is fixedly connected to the filter plate 111 and is located below the filter plate 111. The connecting bolt 113 is threadedly connected to the sealing plate 112 and the pipe 101 in sequence.

[0026] In this embodiment, the filter plate 111 is made of activated carbon material, which can filter out impurities in the gas. After long-term use, the connecting bolt 113 can be unscrewed to remove the restriction on the sealing plate 112, and the filter plate 111 can be taken out from the strip hole 123 for cleaning. The structure is simple and easy for workers to operate and use.

[0027] Furthermore, the side plate 114 is fixedly connected to the pipe 101 and located on the inner side wall of the pipe 101, and the side plate 114 is in contact with the filter plate 111. The support plate 115 is fixedly connected to the pipe 101 and the side plate 114 respectively.

[0028] In this embodiment, the side plate 114 and the support plate 115 can improve the stability of the filter plate 111 and prevent it from shifting due to wind force when filtering gas.

[0029] Furthermore, the audible and visual alarm 116 is detachably connected to the pipe 101 and located below the pipe 101, while the controller 117 is fixedly connected to the pipe 101 and located below the pipe 101.

[0030] In this embodiment, the controller 117 uses a Siemens S7-1200 PLC as its main unit, which has powerful computing capabilities and rich communication interfaces. It supports multiple communication protocols and can easily interact with the gas concentration sensor 108, the carbon monoxide concentration sensor 109, and the oxygen concentration sensor 110 to process and analyze sensor data and precisely control the audible and visual alarm 116, ensuring the safe and stable operation of the ventilation equipment.

[0031] Furthermore, the mounting bracket 118 is fixedly connected to the pipe 101 and located above the pipe 101, and the connecting rib 119 is fixedly connected to the pipe 101 and the mounting bracket 118 respectively.

[0032] In this embodiment, the mounting bracket 118 and the connecting rib 119 work together to facilitate workers using expansion bolts to fix it into the mine, which can effectively improve the convenience of installation.

[0033] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A ventilation device for coal mines with safety monitoring function, comprising a duct and a fan, wherein the fan is disposed on the inner wall of the duct, characterized in that, It also includes a monitoring connection unit, which is connected to the pipeline; The monitoring connection unit includes a mounting base, a pin, a fixed base, a moving block, a spring, a gas concentration sensor, a carbon monoxide concentration sensor, an oxygen concentration sensor, a filter assembly, and an auxiliary assembly. The mounting base is disposed on the inner wall of the pipe. The pin is fixedly connected to the mounting base and located below the mounting base. The pipe has a sliding hole that slidably engages with the pin. The fixed base is fixedly connected to the pipe and located below the pipe. The fixed base has a sliding groove that slidably engages with the moving block. The spring is fixedly connected to both the fixed base and the moving block. The pin has a insertion hole that slidably engages with the moving block. The gas concentration sensor is fixedly connected to the mounting base and located above the mounting base. The carbon monoxide concentration sensor is fixedly connected to the mounting base and located above the mounting base. The oxygen concentration sensor is fixedly connected to the mounting base and located above the mounting base. The filter assembly is connected to the pipe. The auxiliary assembly is connected to the pipe.

2. The ventilation equipment for coal mines with safety monitoring function as described in claim 1, characterized in that, The filter assembly includes a filter plate, a sealing plate, and connecting bolts. The pipe has a strip-shaped hole that slides with the filter plate. The sealing plate is fixedly connected to the filter plate and is located below the filter plate. The connecting bolts are threadedly connected to the sealing plate and the pipe in sequence.

3. The ventilation equipment for coal mines with safety monitoring function as described in claim 2, characterized in that, The filter assembly includes a side plate and a support plate. The side plate is fixedly connected to the pipe and located on the inner side wall of the pipe. The side plate is in contact with the filter plate. The support plate is fixedly connected to both the pipe and the side plate.

4. The ventilation equipment for coal mines with safety monitoring function as described in claim 3, characterized in that, The auxiliary components include an audible and visual alarm and a controller. The audible and visual alarm is detachably connected to the pipe and located below the pipe, while the controller is fixedly connected to the pipe and located below the pipe.

5. The coal mine ventilation equipment with safety monitoring function as described in claim 4, characterized in that, The auxiliary component also includes a mounting bracket and connecting ribs. The mounting bracket is fixedly connected to the pipe and located above the pipe. The connecting ribs are fixedly connected to both the pipe and the mounting bracket.

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