炮采安全措施（Blasting production safety measures）.docVIP

炮采安全措施（Blasting production safety measures） Coal face blasting work should meet the five no, two, less, two high requirements. Five: not broken roof; not collapse, collapse collapse turning bracket; scraper conveyor; not enough coal to reduce the workload of workers from the end of coal; a lump of coal in order to reduce the workload of workers two crushing. High: blasting self loading rate is high, after blasting requirements of loose coal is moderate, and try to make more coal into the scraper conveyor, in order to reduce the amount of artificial coal shovel, while preventing the coal mining goaf thrown into the side, in order to improve the coal recovery rate; hole utilization rate is high, in order to ensure the progress of circular coal face the. Two: blasting time consumed less, should try to increase the number of holes per one blasting, in order to reduce the number of shooting, shorten the time of auxiliary blasting, improving the efficiency of coal blasting; material consumption, reasonable decorate and hole charge, reduce the consumption of explosives and detonators, improve economic efficiency. In addition, there are special safety requirements when blasting operations are carried out on the working face with gas and coal dust explosion, which are summarized as follows: 1: (1) coal mines with permissible gas and coal dust explosion must use the permissible coal mine explosives and coal mine permissible detonators. (2) the blasting work must be carried out by full-time shooting personnel who have been specially trained to obtain the blasting certificate. The blasting operation includes shooting the bus bar, connecting the foot line, checking the line and electrifying the work. Only the shot operator is operated by himself. (3) when shooting operations, the shooting officer, the class leader and the gas inspector must perform the one shot three check system and three person chain processing at the scene. (4) the gas must be checked before and after loading