Datong Cast Iron Drain Pipe Distributor Railway High Speed Drain Pipe

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　　Datong Cast Iron Drain Pipe Distributor Railway High Speed Drain Pipe Flood Season Approaching Coal Mine Rainy Season "Three Prevention Points Early Known

　　Recently, the Provincial Emergency Department issued a notice on doing a good job in the 2021 coal mine rainy season three prevention work, requiring all coal mining enterprises in the province to carry out pre flood risk and hidden danger investigation and rectification work as soon as possible.

　　One is to investigate the collection, drainage, and leakage of water in the well field and surrounding rivers, lakes, reservoirs, and related water conservancy projects. Abandoned old wells, scrapped boreholes, poorly sealed boreholes, and coal mining subsidence cracks within the well field should be sealed to prevent surface water from flowing back into the underground.

　　The second is to investigate the accumulation of debris such as gangue, furnace ash, and garbage in areas that may be washed away by flash floods and rivers, as well as the impact on mine safety production. Timely clear the drainage channels (holes) and establish a sound ground waterproofing and drainage system.

　　The third is to investigate the six situations of water hazard risk identified in the "Measures for Predicting and Preventing Major Safety Risks in Coal Mines (Trial)" (Jinmei Jianzheng Law [2020] No. 134) jointly issued by the Shanxi Coal Mine Safety Supervision Bureau and the Shanxi Provincial Emergency Management Department, and strictly implement the coal mine water hazard control measures identified in the "Notice on Deeply Learning from the Lessons of Mine Water Hazards and Further Strengthening the Work of Coal Mine Water Hazards" (Jinmei Jianzheng Law [2021] No. 92) document.

　　The fourth step is to investigate whether there is excessive and out of bounds mining, various anti water barrier coal pillar mining, and take resolute measures to eliminate hidden dangers.

　　The fifth step is to investigate the sludge situation in the water storage tank (open-pit mine water tank), sedimentation tank, and ditch, and clean them up in a timely manner.

　　Six is to conduct joint drainage tests on all working water pumps, standby water pumps, and submersible pumps, and regularly inspect and maintain water pumps, water pipes, gate valves, power distribution equipment, and circuits to ensure their normal operation.

　　Seventh, open-pit coal mines should strengthen the risk of potential harm caused by surface water and precipitation to areas such as waste dumping sites, industrial squares, and mining sites. Comprehensive inspections, maintenance, and upkeep of waterproof and drainage facilities should be carried out to ensure safety and reliability.

　　Eighth, it is necessary to investigate the integrity of lightning protection devices installed in transformer (distribution) facilities, oil depots, gas extraction pump rooms, tall or easily struck buildings, and mine safety monitoring systems. Power supply lines should be inspected and maintained, and high-voltage electrical preventive tests and lightning protection inspections should be conducted to ensure the integrity of lightning protection facilities and various protection functions in coal mines, as well as reliable dual circuit power supply. Before the flood season, the investigation and rectification of risks and hidden dangers should establish three lists of problems, responsibilities, and rectification, as well as a work ledger. Each item should be rectified within a time limit and completed before May 20th.

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　　The Notice requires coal mining enterprises to strengthen coal mine safety and emergency measures during the flood season, conscientiously prepare for various emergencies, ensure that emergency plans, teams, materials and equipment, and funds are in place, carry out practical exercises and water disaster warning education, and enhance the ability to identify flood risk signs, emergency evacuation, and emergency rescue during the flood season. During rainy and flood periods, it is necessary to conduct inspections on the surface water, leakage, and displacement of rock masses on open-pit mine slopes within the mining area, and closely monitor changes in underground water inflow. During the extreme weather period, it is necessary to strengthen the continuous troubleshooting of key parts such as the area that may be affected by rainstorm and flood in the mining area and the mine field, the area where geological disasters occur, and the double circuit power supply line where lightning and strong wind may cause a large area of power failure in the coal mine, and deal with abnormalities in a timely manner. Strictly implement measures for coal mine shutdown and personnel withdrawal under extreme weather conditions such as rainstorm and flood to prevent flooding accidents or double circuit power supply leading to personnel trapped underground. The main person in charge of the coal mine must grant emergency evacuation powers to the shift leader, team leader, safety officer, dispatcher, etc. If signs of water seepage or collapse are discovered, production must be immediately stopped and personnel must be evacuated. We need to strengthen communication with neighboring mines and issue warnings immediately when water disasters in mines may affect adjacent mines.

　　Emergency management departments at all levels (local coal mine safety supervision) and coal mining enterprises should establish and improve disaster weather warning and coordination linkage mechanisms, closely monitor weather changes, timely use SMS platforms, relevant work WeChat groups and other methods to send safety warning information, and remind relevant units to take safety precautions. We must effectively carry out emergency duty and information reporting during the flood season, strictly implement the 24-hour duty system of leading cadres on duty and key positions, maintain emergency status at all times, report and activate emergency plans immediately after receiving accident and disaster warnings, quickly organize rescue and disaster relief, strictly prevent secondary disasters, and minimize casualties and disaster losses.

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