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在煤矿凿岩、打眼、放炮、采煤的许多工艺过程中,都会产生大量的生产性粉尘。如果防尘工作跟不上,煤矿工人可患煤矽肺病,我县大仑山煤矿就是个实例。1975年至1985年全矿逐年进行健康检查,结果发现煤矽肺患者63人,患病率为28.6%。其中Ⅰ期25人,Ⅱ期35人,Ⅲ期3人.对比1 983年煤矽肺患病人数31人,两年时间增长1.60倍。更严重的是1980年参加百米掘进竞赛干式凿岩的21名工人中,已有16人患煤矽肺病,死亡2人。该矿另有工伤死亡18人,平均死亡率高达29.7人/100万。预料今后还会出现新的煤矽肺发病高峰。该矿煤矽肺平均发病年龄为40.16岁,平均发病
In the coal drilling, drilling, blasting, coal mining many processes, will produce a large amount of productive dust. If the dust-proof work can not keep up, coal miners may suffer from coal silicosis, Daling Shan Coal Mine in our county is an example. From 1975 to 1985, the whole mine conducted annual health examination and found that there were 63 coal silicosis patients with a prevalence of 28.6%. Among them, 25 were stage Ⅰ, 35 were stage Ⅱ, 3 were stage Ⅲ, compared with 31 in coal-silicosis patients in 1983 and 1.60-fold in two years. What is even more serious is that of the 21 workers who took part in the 100-meter Drilling Competition in 1980, 16 people were suffering from coal silicosis and 2 were dead. There are 18 other workers injured in the mine, with an average death rate of 29.7 people / 1 million. It is expected that there will be a new peak in the incidence of coal silicosis in the future. The coal mine silicosis average age of 40.16 years old, with an average incidence