Safety technical measures 1. Before the construction of the organization, the construction unit is required to prepare the materials, tools and equipment required for drilling, and the equipment cannot be affected due to the preparation work. Construction personnel should carefully study the technical measures for water safety and familiar with the use and maintenance of drilling rigs . 2. In the process of transporting large-scale equipment such as drilling rigs , the transport personnel should handle them gently to avoid damage to the equipment due to force collision. 3. Before starting work, first of all, it is necessary to carry out safety confirmation according to relevant regulations, and confirm the safety before construction. The connection between the rig and its ancillary facilities and the components must be firm and reliable, and checked before each use to ensure the safety of the construction. 4. Before each drilling, check the solid condition of the drill pipe joint to prevent the occurrence of the de-drilling accident; the drill pipe should not be blocked, not bent, and the wire mouth is not worn. 5. Before the construction of the rig, the construction personnel are required to inspect the roadway support within 10m near the rig, and find that the roadway support is damaged in time and strengthen the support, and lay the column and the baffle. 6. Keep the drill site with sufficient safety space for construction. 7. In the low-lying section of the roadway, dig the water tank in time on the non-human side, and clean up the temporary ditch to ensure unimpeded drainage. 8. When leveling the road, the 80mm drain pipe will be extended forward with the excavation, and the hose will be used within 20m. 9. Set up a special telephone and alarm device near the drilling location, and ensure that you can contact the dispatching room at any time. 10. Technicians and personnel in charge and discharge must visit the site to determine the location, orientation, depth and number of holes in the main water exploration holes according to the design. 11. Leading mine leaders and duty safety officers and gas crews must supervise safety and check air composition at any time. If the gas concentration exceeds 0.8% or other harmful gas concentrations exceed the provisions of Article 100 of the "coal mine safety regulations", it must immediately stop drilling, cutting off power to withdraw personnel and report ore control room, the timely processing. 12. The equipment is strictly in accordance with the operating procedures to ensure that the drilling rig is firm and does not shift. 13. Before drilling, the drainage pump, pipeline and power supply system must be in normal operation and undergo joint inspection. 14. Each class must be equipped with a skilled pump driver on duty, and strictly implement the handover system to ensure timely discharge after drilling water. 15. The well-input equipment should be strictly tested for explosion-proof. During the construction period, the water supply and power supply system should be inspected and repaired. It is strictly forbidden to detonate the equipment cable to ensure drainage, drilling and normal power supply. 16. The drilling construction shall be uniformly dispatched by the mine dispatching room. If abnormal conditions are found, the dispatching room shall be notified in time, and a special telephone shall be set up at the construction site. 17. The drilling position, orientation and inclination angle shall be calibrated by the technician according to the design, according to the design and construction, and strictly in accordance with the “Procedureâ€. Always check the operation of the equipment, observe the integrity of the hole wall, prevent accidents, and complete the drilling task on time and in quality. 18, strengthen the maintenance of electrical equipment, check each shift once, to prevent the phenomenon of explosion. 19. The drilling rig must be fixed firmly to ensure that it does not shift when drilling. The pressure test of the orifice tube must be notified to the mine dispatching room, the production technology department, the safety supervision department, and through the joint inspection and acceptance of the relevant departments of the mine organization. 20. If abnormal water pressure, sudden increase in water volume, top drilling, etc. are found during drilling, the drilling must be stopped immediately, and the drill pipe must not be pulled out. Report to the dispatch room immediately and send someone to monitor the water situation. If the situation is found to be critical, turn off the blowout preventer to stop the water, and immediately evacuate all personnel in the water-damaged area, and then take measures to deal with it. 21. The construction site must be equipped with a portable gas detector to detect the gas concentration. If the gas exceeds the limit, the cause should be immediately identified. 22. Before the construction drilling, the drainage facilities of the water exploration site must be improved, and the drainage capacity is not less than 20m3/h. 23. In order to ensure the smooth flow of the telephone, before the start of each shift, the construction personnel must first contact the dispatching room by telephone once, the telephone is unreachable, and drilling is not allowed. 24. During the construction period, a pilot team for exploration and release of water should be established to unify the problems encountered in the construction. 25. The electromechanical system ensures that the drainage is powered by dual power sources. At the same time, the mechanical and electrical equipment maintenance of the central pumping station is strengthened to ensure that the pump platform of the central pumping station is in good condition. 26, the central pump room personnel require on-site handover, the class should test the phone, report to the dispatch room the operation of the drainage equipment. 27. The electromechanical system should strengthen the power supply management and strictly prohibit the occurrence of power outage accidents. 28. After the drainage pipeline of the water exploration site is laid, it must be tested first, and the water can be explored when the operation is normal. 29. All electrical equipment must be more than 0.3m away from the floor of the roadway. 30. When a disaster occurs, the on-site personnel must keep their heads clear, quickly identify the dangerous situation, withdraw according to the correct disaster avoidance route, and report to the dispatching room in time. Disaster management measures I. Evacuation of flood accidents The evacuation shall be withdrawn in accordance with the disaster avoidance route. Where conditions permit, they should be quickly evacuated to levels above the water inrush location. Try to avoid entering the single lane road near and below the water inrush point. During the journey, close to the side of the roadway, grab the bracket or other fixtures, try to avoid the pressure head and the main drain, and pay attention to prevent the bricks and wood flowing by the water from being injured. If the direction of the road is lost due to the destruction of the lighting and signposts in the roadway after the water inrush, the victims should retreat in the direction of the mountain lane where the wind passes, and it is strictly forbidden to take such risky activities as blind diving. Second, measures to deal with water seepage accidents 1. When a flood accident occurs, the staff at the scene and nearby locations should first do their own safety protection, immediately avoid the water discharge from the outlet, avoid the indoors, turn corners or other safe places, if the situation is too late to transfer and avoid When you can grab the sill beam, shed legs or other fixtures to prevent the water from being washed down. 2. Water damage accidents occur. On-site and nearby location staff should quickly observe and judge the location of water inrush, the degree of water inrush, the situation of trapped personnel on site, and report the mine dispatch immediately after possible. room. 3, stop the operation, at the same time organize rescue, strengthen the water to prevent expansion. 4, according to the disaster avoidance route to the ground, do not enter the downhill single lane. 5. When harmful gases escape, care should be taken to prevent poisoning. 6. After receiving the permeable report, the dispatching room should immediately inform the relevant departments and the mine rescue team, and inform the accident location and the area that can be affected. 7. Start drainage of all drainage equipment, maintain drainage facilities and transmission lines. 3. Prevention and control measures for the emission of harmful gases during drilling 1. Strengthen the ventilation of the water discharge site and increase the number of observations of harmful gases. 2. During the construction of the drilling, safety personnel and gas inspectors must inspect the air components on the water surface to find harmful gases. Stop drilling, cut off the power supply, evacuate personnel, and take ventilation measures to dilute harmful gases. 3. When the harmful gas is detected in the water exploration site, the drilling should be stopped immediately, the power supply should be stopped, and the personnel should be evacuated to the place where there is fresh air flow. Immediately report the mine dispatching room and take measures. Drilling is close to the old air. When gas or other harmful gases are expected to emerge, a gas inspector or safety officer must be on duty to check the air composition. If gas or other harmful gases exceed the relevant provisions of the regulations, it is necessary to stop drilling immediately, cut off the power supply, evacuate personnel, report to the mine dispatching room, and take measures to deal with them. 4. During the construction of the drilling, a full-time gas inspector must check the drilling and drilling gas at any time. If the gas reaches 0.8%, the drilling and evacuation should be notified immediately. Flood disaster avoidance route 0703 working face→1701 working face returning wind lane→humane inclined well→ground. Punch Line,Sheet Stamping Steel,Punching Hydraulic Press,Stamping Sheet Metal Chongqing Jiangdong Machinery Co., Ltd , https://www.cqjdpress.com
Safety technical measures for working face exploration