First, ventilation and gas prevention 1. Strengthen the management of mine ventilation system, facilities and equipment to ensure that the working face has sufficient air supply. 2. It is strictly forbidden to damage or open the damper at will, causing short circuit of wind flow. 3. Strengthen the roof management work of the two lanes and the working face to ensure that there is sufficient ventilation section. 4. When the gas concentration in the 0.5 m3 air in the roadway exceeds 1.0%, measures should be taken immediately. When the gas concentration within 20m reaches 2%, the operation must be stopped, the personnel should be evacuated, and the power supply should be cut off for treatment. 5. When the working face stops the wind, evacuate the personnel to the fresh air flow in time. 6. After restoring ventilation due to power failure, etc., the gas concentration should be checked first, and the personnel must enter the working surface until the safety is confirmed. 7. The working face and the two lanes of gas inspection are not less than two times per shift. 8. If the gas on the working surface is abnormal, it is reported to the dispatching room in time and measures are taken for processing. 9. It is strictly forbidden for personnel to enter the gas over-limit zone or gas-unknown zone such as blind alley. 10. After the two lanes of the working face enter the goaf, the roofing measures must be taken in time, and the lag distance is strictly prohibited to reach more than 3m. Second, fire prevention 1. All persons entering the well are strictly prohibited from carrying tobacco to deteriorate the ignition items. 2. It is strictly forbidden to store gasoline and kerosene in the working face and the squatting room. It is strictly forbidden to spill the waste oil. 3, the lubricating oil maintenance face veils, cloth, and paper used, must be placed reclosable iron cylinder, and a personal conveyance Masui periodic process, allowed cluttered in the roadway. 4. The cylinder cover for storing grease on the working surface must be tightly sealed, and the quantity should not exceed the maximum amount required for the shift. The grease remaining on duty should be raised in time. 5. Improve the adoption rate of top coal, reduce the residual coal in the goaf, and accelerate the advancement when there is a sign of fire on the working surface. 6, timely clean the conveyor belt under the floating coal, etc., timely repair and replace the worn roller, to prevent the conveyor belt deviation, the roller friction fire. 7. Clean and flush the coal dust on the two lanes and the work surface brackets in time to keep them clean. 8. Do not leave flammable materials such as backing boards in the goaf. 9. It is strictly forbidden to knock, disassemble and hit the miner's lamp underground. 10. The working surface shall not be subjected to electric welding. If it is necessary to carry out, there shall be at least two fire extinguishers at the working place, and safety technical measures shall be made every time, and the measures shall be strictly followed. 11. The electric welding is used underground. The oxygen and acetylene bottles must have a bottle mouth protection cover, and the two bottles must not be shipped on the same car. When transporting on the mine car, the mine car must have a cover. 12. When the work surface encounters a hard clamp, it should not be hard cut with a shearer to avoid sparks and cause fire. 13. No production work is allowed when there is no wind or breeze. 14. When the gas concentration in the airflow exceeds 1.0% or the CO2 concentration exceeds 1.5%, the work must be stopped, the personnel should be withdrawn, and measures should be taken for treatment. 15. When the working face is long after the old pond side, measures must be taken in time to make the top plate of the lower corner of the working face fall tightly. 16. Check the working surface gas to be detailed and accurate, and not less than twice per shift. 17. Eliminate all fires and prevent the occurrence of various accidents in production. 18. Do not use iron to iron the iron directly under the well to avoid sparks causing fire. 19. When the large coal in the working face is stuck in the coal caving port or there is a large piece of vermiculite, it is strictly forbidden to use the method of irregular blasting. It is strictly forbidden to put the gun and the cannon in the working surface. 20. The working face is strictly sprinkled with water and dust before and after blasting, and the blasting uses blisters. 21. Both lanes must adopt comprehensive fire prevention measures. 22, the grouting pipeline does not leak, do not gamble, to ensure that the gob can be grouted at any time. 23. A certain amount of fire-fighting equipment should be stored in the middle of the two lanes. All personnel must be familiar with the use of fire-fighting equipment. 24, two lanes of explosion-proof water shed, must be fried as needed, add water. 25. The spray on the working surface is complete and complete, and the production will be opened in time. The coal miner must spray when cutting coal. 26, electrical equipment is strictly prohibited to lose the explosion, it is strictly prohibited to use the Ming joints, "chicken claws", "sheep tail" and other means of wiring, wiring must use explosion-proof junction box. 27. It is strictly forbidden to carry out maintenance and relocation of electrical equipment. 28. The fluid coupling should add a certain amount of medium according to the requirements of the manual. 29. After the work surface is finished, it must be permanently closed within 45 days. 30. When there is a sign of spontaneous fire in the goaf or roadway, report to the dispatching room immediately and take measures to deal with it. 31. Smoking is strictly prohibited within 20m of the wellhead. 32. When an external fire occurs, immediately take materials for disaster prevention and report to the dispatching room immediately, and promptly withdraw the personnel who are still threatened by the disaster. Three. Dust 1. The working surface bracket, coal mining machine , crusher import and export, transfer machine head, belt conveyor head and other spray facilities are complete, and the atomization effect is good. 2. When the top coal is placed, the spray surface dust should be sprayed on the working surface bracket. 3. In the production, timely open the spray and dust. 4. When the coal body is dry, the pre-wet coal body should be drilled before the water injection to reduce the amount of coal dust generated during production. 5. The spray device must be installed at the transfer point of the conveyor, and spray dust reduction during operation. 6. Clean and flush coal dust on roadway tops, poles, cables, trains, equipment and brackets in time. 7. Strengthen personal protection. Workers in dusty locations should wear dust masks. Fourth, security monitoring 1. The portable tile detector must be placed on the working face shearer and must work normally. 2. Reliable and continuous monitoring of the gas concentration in the mining roadway. If the concentration exceeds the limit, take measures immediately. 3. All monitoring equipment must be commissioned and calibrated at least once a month to reflect the gas condition of the working surface. 4. Do not open the power supply on the working surface monitoring instrument. 5. When the monitor alarms, it must take timely measures to deal with it, and must not blindly produce. 6. When the monitoring instrument fails, it must be reported to the dispatching room for processing in time, and must not be concealed. 7. There must be safety measures during the handling of monitoring equipment failures. Asian Shopping Trolley,India Trolley,Metal Trolley,Metal Supermarket Trolley,Trolley with Base Suzhou Malltek Supply China Co.,Ltd. , https://www.malltekcart.com
Coal mine "one through three prevention" technology and security monitoring security measures