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钻机穿孔、电铲装矿和汽车运矿等过程中,都产生大量粉尘,加上其它尘源以及落地灰尘二次飞扬,使这些机械设备司机室粉尘浓度超过国家规定标准几倍乃至十几倍。几年来,在矿党委领导下,专业队伍与群众运动相结合,在千方百计控制各种尘源的同时,进行了司机室空气增压净化的试验研究。自从1974年2月第一台电铲司机室空气增压净化装置进行工业试验至今,已在14
Drilling rig perforation, electric shovel loading, and automobile transportation and mining processes all generate a large amount of dust. In addition, other dust sources and ground dust fly twice, making the dust concentration in the driver’s cabin of these mechanical equipment exceed the national standard by several times or even more than ten times. . In the past few years, under the leadership of the Party Committee of the Minerals, professional teams have integrated with the mass movements, and while doing everything possible to control various dust sources, a pilot study of the pressurization and purification of air in the cab has been carried out. Since the first test of the air shovel pressurization and purifying device for the first electric shovel in February 1974, it has been tested in industry.