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大型挖掘机是露天矿山的主要设备之一。挖掘机在挖掘和装运过程中产生大量的粉尘,使司机室粉尘浓度平均达到9.3毫克/米~3,最高达到37.8毫克/米~3。远远超过国家卫生标准2毫克/米~3的规定,致使司机容易得矽肺病。加之露天开采夏季酷热,冬季严寒,作业条件十分恶劣,严重危害操作工人的身体健康。太原重型机器厂对此极为重视,1980年开始了4米~3挖掘机机棚、司机室增压净化系统的研试工作。按照新的设计,1982年8月试制
Large excavators are one of the major equipment of open pit mines. Excavators in the excavation and shipment of large amounts of dust generated, so that the driver’s room average dust concentration reached 9.3 mg / m ~ 3, up to 37.8 mg / m ~ Far more than the national health standards 2 mg / m ~ 3 provisions, resulting in drivers easily get silicosis. Coupled with open-air mining summer heat, cold winter, operating conditions are very poor, seriously endangering the health of workers. Taiyuan Heavy Machinery Factory attaches great importance to this, began in 1980, 4 m ~ 3 excavator hangar, cab turbocharger purification system research. According to the new design, trial production in August 1982