Coal mine underground gas control detection device
By designing an underground gas treatment and detection device for coal mines with adjustable air intake head pipe height, the problems of small detection range and poor accuracy in the existing technology are solved, and a wider and more accurate gas detection is achieved, ensuring the safety of coal mine workers.
Patent Information
- Application Number
- CN202421035913.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Existing gas detection equipment can only detect gas gas content at a fixed height, resulting in a small detection range and poor detection accuracy, which can easily cause safety hazards.
A coal mine underground gas treatment and detection device is designed, and the height of the air intake head pipe is adjusted through the operation of the first motor, so that air of different heights can be sucked into the detection box for detection.
The gas detection range and accuracy are improved, and the life safety of underground workers is ensured.
Smart Images
Figure CN222671513U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas detection, in particular to a gas control detection device for underground coal mines. Background Art
[0002] Coal mine gas, also known as coal seam gas or coalbed methane, is a mixed gas composed of methane, carbon dioxide and nitrogen that escapes from coal and surrounding rocks. Gas is a harmful factor in coal mine production. It not only pollutes the air, but also when the gas content in the air is 5% to 16%, it can cause explosions when encountering fire, resulting in accidents. Gas explosions can be prevented, such as regularly measuring the gas content in the air in the tunnel, measuring the amount of gas outburst, and taking effective ventilation, strictly prohibiting fireworks, pre-extraction, mining protective layers, artificial protrusion and other measures to ensure the safety of coal mine production.
[0003] At present, since the gas density is lower than the air density, if there is a gas leak, it will first gather at the top of the tunnel, so that the gas content in the air at different heights varies greatly. The existing gas detection equipment can usually only detect the gas content at a fixed height, resulting in a small detection range and poor detection accuracy, which can easily cause safety hazards. Therefore, in order to solve the above problems, we propose a coal mine underground gas control detection device. Utility Model Content
[0004] The utility model aims to solve the defects in the prior art and proposes a gas control and detection device for underground coal mines.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A gas control detection device for underground coal mines, comprising a detection box, a bottom plate is fixedly connected to the top of one end of the detection box, an intake tail pipe is fixedly connected inside the bottom plate, one end of the intake tail pipe is connected to a corrugated hose, the top of the corrugated hose is connected to an intake head pipe, the top of the intake head pipe is fixedly connected to a top plate, a first motor is fixedly connected to the top of the bottom plate, a lead screw is fixedly connected to the output end of the first motor, a connecting sleeve is threadedly connected to the outer side of the lead screw, the connecting sleeve is fixedly connected to the bottom of the top plate, and the bottom of the top plate is fixedly connected to a limiting sleeve, the top of the bottom plate is fixedly connected to a limiting guide rod, and the limiting guide rod is arranged inside the limiting sleeve.
[0007] Furthermore, a plurality of through holes are provided on the surface of the top of the air intake head pipe, and a first filter is fixedly connected to the inside of the top of the air intake head pipe, and a fan is fixedly connected to the bottom of the air intake tail pipe.
[0008] Furthermore, a filter chamber and a detection chamber are provided inside the detection box, a dust box is slidably connected to the bottom of the filter chamber, and a primary filter cotton plate and a fine filter cotton plate are fixedly connected between the filter chamber and the detection chamber, and the primary filter cotton plate is arranged close to the filter chamber.
[0009] Furthermore, a second motor is fixedly connected to the bottom of the detection chamber, a transmission shaft is fixedly connected to the output end of the second motor, a first bevel gear is fixedly connected to the outer side of the top of the transmission shaft, a connecting shaft is rotatably connected to the middle part of the detection chamber, a cam is fixedly connected to the outer side of the connecting shaft, and a second bevel gear is fixedly connected to the outer side of one end of the connecting shaft.
[0010] Furthermore, a methane detector is fixedly connected to the top of the detection chamber, an activated carbon filter plate is fixedly connected to the inside of the detection chamber, and a second filter is fixedly connected to the inside of one end of the detection chamber.
[0011] Furthermore, a sound and light alarm is fixedly connected to the top of one end of the detection box, and a controller is fixedly connected to the surface of one side of the detection box.
[0012] Compared with the prior art, the beneficial effect of the utility model is that the height of the air intake head pipe can be adjusted through the operation of the first motor, so that air at different heights can be sucked into the detection box for detection, which is conducive to the detection of the gas content in the air at different heights, thereby increasing the gas detection range, improving the gas detection accuracy, and ensuring the life safety of underground workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the air intake head pipe of the utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the filter chamber of the utility model;
[0017] Figure 4 It is an enlarged schematic diagram of the structure at point A of the present utility model.
[0018] In the figure: 1. detection box; 2. bottom plate; 3. intake tail pipe; 4. corrugated hose; 5. intake head pipe; 6. top plate; 7. sound and light alarm; 8. controller; 9. dust box; 10. first motor; 11. screw rod; 12. connecting sleeve; 13. limit guide rod; 14. limit sleeve; 15. through hole; 16. first filter; 17. filter chamber; 18. detection chamber; 19. fan; 20. primary filter cotton plate; 21. fine filter cotton plate; 22. second motor; 23. methane detector; 24. activated carbon filter plate; 25. second filter; 26. transmission shaft; 27. first bevel gear; 28. connecting shaft; 29. second bevel gear; 30. cam. DETAILED DESCRIPTION
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;
[0020] Reference Figure 1-4 A gas control detection device for underground coal mines comprises a detection box 1, a bottom plate 2 is fixedly connected to the top of one end of the detection box 1, an intake tail pipe 3 is fixedly connected inside the bottom plate 2, one end of the intake tail pipe 3 is connected to a corrugated hose 4, the top of the corrugated hose 4 is connected to an intake head pipe 5, the top of the intake head pipe 5 is fixedly connected to a top plate 6, a first motor 10 is fixedly connected to the top of the bottom plate 2, a screw rod 11 is fixedly connected to the output end of the first motor 10, a connecting sleeve 12 is threadedly connected to the outer side of the screw rod 11, the connecting sleeve 12 is fixedly connected to the bottom of the top plate 6, and a limiting sleeve 14 is fixedly connected to the bottom of the top plate 6, a limiting guide rod 13 is fixedly connected to the top of the bottom plate 2, and the limiting guide rod 13 is arranged inside the limiting sleeve 14.
[0021] When the first motor 10 is started, the screw rod 11 is driven to rotate. Under the restriction of the limiting guide rod 13 and the limiting sleeve 14, the connecting sleeve 12 moves linearly along the screw rod 11, and then the air intake head pipe 5 stretches the corrugated hose 4 to adjust its own height.
[0022] A plurality of through holes 15 are formed on the surface of the top of the air intake head pipe 5 , and a first filter 16 is fixedly connected to the inside of the top of the air intake head pipe 5 , and a fan 19 is fixedly connected to the bottom of the air intake tail pipe 3 .
[0023] After the height of the air intake head pipe 5 is determined, the fan 19 is started and air can be drawn from the outside through the through hole 15. Before the air enters the air intake head pipe 5, larger coal dust particles will be filtered out by the first filter 16 to avoid affecting the normal operation of the fan 19.
[0024] A filter chamber 17 and a detection chamber 18 are provided inside the detection box 1. A dust box 9 is slidably connected to the bottom of the filter chamber 17, and a primary filter cotton plate 20 and a fine filter cotton plate 21 are fixedly connected between the filter chamber 17 and the detection chamber 18. The primary filter cotton plate 20 is arranged close to the filter chamber 17. When outside air enters the filter chamber 17, coal dust will settle in the dust box 9 or be adsorbed and filtered by the primary filter cotton plate 20 and the fine filter cotton plate 21.
[0025] A second motor 22 is fixedly connected to the bottom of the detection chamber 18, and a transmission shaft 26 is fixedly connected to the output end of the second motor 22. A first bevel gear 27 is fixedly connected to the outer side of the top of the transmission shaft 26. A connecting shaft 28 is rotatably connected to the middle part of the detection chamber 18, and a cam 30 is fixedly connected to the outer side of the connecting shaft 28, and a second bevel gear 29 is fixedly connected to the outer side of one end of the connecting shaft 28. When the second motor 22 is running, the transmission shaft 26 is driven to rotate, thereby transmitting the first bevel gear 27 and the second bevel gear 29, so that the connecting shaft 28 drives the cam 30 to rotate. During the rotation of the cam 30, one end of the cam 30 will continuously contact the fine filter cotton plate 21, thereby vibrating the primary filter cotton plate 20, causing the coal dust on one side of it to fall into the dust collecting box 9.
[0026] A methane detector 23 is fixedly connected to the top of the detection chamber 18, an activated carbon filter plate 24 is fixedly connected to the inside of the detection chamber 18, and a second filter screen 25 is fixedly connected to the inside of one end of the detection chamber 18. The methane detector 23 is used to detect the methane content in the air, the activated carbon filter plate 24 is used to filter harmful substances and odors in the air, and the second filter screen 25 is used to discharge air and prevent coal dust from entering the detection chamber 18.
[0027] A sound and light alarm 7 is fixedly connected to the top of one end of the detection box 1, and a controller 8 is fixedly connected to the surface of one side of the detection box 1. The first motor 10, the fan 19, the second motor 22, the methane detector 23 and the sound and light alarm 7 are all electrically connected to the controller 8.
Claims
1. A coal mine underground gas control detection device, comprising a detection box (1), characterized in that: The top of one end of the detection box (1) is fixedly connected to a bottom plate (2), the interior of the bottom plate (2) is fixedly connected to an intake tail pipe (3), one end of the intake tail pipe (3) is connected to a corrugated hose (4), the top of the corrugated hose (4) is connected to an intake head pipe (5), the top of the intake head pipe (5) is fixedly connected to a top plate (6), the top of the bottom plate (2) is fixedly connected to a first motor (10), the output end of the first motor (10) is fixedly connected to a lead screw (11), the outer side of the lead screw (11) is threadedly connected to a connecting sleeve (12), the connecting sleeve (12) is fixedly connected to the bottom of the top plate (6), and the bottom of the top plate (6) is fixedly connected to a limiting sleeve (14), the top of the bottom plate (2) is fixedly connected to a limiting guide rod (13), and the limiting guide rod (13) is arranged inside the limiting sleeve (14).
2. A coal mine gas control detection device according to claim 1, characterized in that: The surface of the top of the air intake head pipe (5) is provided with a plurality of through holes (15), and the interior of the top of the air intake head pipe (5) is fixedly connected to a first filter screen (16), and the bottom of the air intake tail pipe (3) is fixedly connected to a fan (19).
3. The underground coal mine gas control detection device according to claim 1, characterized in that: The detection box (1) is provided with a filter chamber (17) and a detection chamber (18) inside, the bottom of the filter chamber (17) is slidably connected to a dust collecting box (9), and a primary filter cotton plate (20) and a fine filter cotton plate (21) are fixedly connected between the filter chamber (17) and the detection chamber (18), and the primary filter cotton plate (20) is arranged close to the filter chamber (17).
4. A coal mine gas control detection device according to claim 3, characterized in that: A second motor (22) is fixedly connected to the bottom of the detection chamber (18), a transmission shaft (26) is fixedly connected to the output end of the second motor (22), a first bevel gear (27) is fixedly connected to the outer side of the top of the transmission shaft (26), a connecting shaft (28) is rotatably connected to the middle of the detection chamber (18), a cam (30) is fixedly connected to the outer side of the connecting shaft (28), and a second bevel gear (29) is fixedly connected to the outer side of one end of the connecting shaft (28).
5. The coal mine gas control detection device according to claim 3, characterized in that: A methane detector (23) is fixedly connected to the top of the detection chamber (18), an activated carbon filter plate (24) is fixedly connected to the inside of the detection chamber (18), and a second filter screen (25) is fixedly connected to the inside of one end of the detection chamber (18).
6. The coal mine gas control detection device according to claim 1, characterized in that: An audible and visual alarm (7) is fixedly connected to the top of one end of the detection box (1), and a controller (8) is fixedly connected to the surface of one side of the detection box (1).