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在隧道、坑道以及矿山工业中,一般均采用湿式钻眼、通风、喷雾、洒水等综合防尘措施。但在缺水、严寒或其他特殊条件下,往往不得不采用干式钻眼。在这种情况下,作业面空气中的粉尘浓度甚高,作业人员如果连续工作时间较长,就可能发生矽肺病。为了预防矽肺病,我们在北京市劳保所的协助下,从1974年起,与铁道兵后勤部、贵阳钢厂、沈阳风动工具厂、沈阳市和平区胜利公社机械厂等共同协作,于1975年制成了75-1型孔口捕尘器。其捕尘效果较好,使用方便,受到使用单位及矿井作业人员的欢迎。为了进一步推广使用75-1型孔口捕尘器,并希望使用单位提出改进意见,现将该型捕尘器的主要技术资料报告如下。
In the tunnels, tunnels and mining industries, the general use of wet drilling, ventilation, spray, water and other comprehensive dust control measures. However, in the case of water shortage, cold or other special conditions, it is often necessary to use dry drilling. In this case, the concentration of dust in the air at the work area is very high. If the workers work continuously for a long time, silicosis may occur. In order to prevent silicosis, with the assistance of Beijing Municipal Labor Insurance Institute, we have been working with the logistics department of logistics department, Guiyang Steel Works, Shenyang Fengdonggongju Factory, Shengli District Shengli Commune Machinery Factory, etc. since 1974, Year made 75-1-type orifice dust collector. The dust catching effect is better, easy to use, by the use of units and mine operators welcome. In order to further promote the use of 75-1-type orifice dust collector, and hope to use the unit to make improvements, now the main technical information on the type of dust collector is reported as follows.