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一、除尘在石方机械施工中的意义露天潜孔钻机凿岩时,将产生大量粉尘。以武汉工程机械厂制造的YQ-100B型潜孔钻机为例,按净钻速度(纯凿岩速度)为平均每小时8米计,粉碎岩石0.063立方米。若有1％尘粒为0.2～4微米的粉尘,每分钟将产生21630毫克。这种粉尘悬浮于空气中,当气候炎热,地势低洼自然通风不良时,它更将长期停滞在空气中,污染着工地的环境;严重地危害着作业工人的身体健康。特别是新建铁路具有工期紧,施工任务集中等特点,往往需要集中数台钻机同时在一个工点凿岩钻孔,空气中粉尘含量就更高,周围环境就更恶劣,危害就更大。为了改变上述情况,加强劳动保护工作,搞好
First, the dust in the stone machinery construction significance Drowshed open-hole drilling machine, it will produce a lot of dust. Taking the YQ-100B DTH drilling rig manufactured by Wuhan Construction Machinery Factory as an example, according to the net drilling speed (pure drilling speed) of 8 meters per hour and an average of 0.063 cubic meters of crushed rock. If 1% dust particles of 0.2 to 4 microns of dust, will produce 21630 mg per minute. When the dust is suspended in the air, it will stay in the air and pollute the working environment for a long time due to the hot weather and poor natural ventilation in the low lying areas. It will seriously endanger the health of homework workers. In particular, the newly built railway has the advantages of tight construction period, concentrated construction tasks, etc., and often needs to concentrate several drill rigs to drill holes at one working point at the same time. The dust content in the air is even higher, the surrounding environment is even worse and the damage is even greater. In order to change the above situation, we must step up labor protection and improve it