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我厂第一炼钢车间的一座可移动式小型电炉,系六十年代初投产,但设备、工艺至今未有改进,厂房高度只5米多,车间场地一百平方米,通风窗面积不到十平方米。每炉熔炼 钢一百公斤,添加百分之三十的萤石,约四十分钟一炉。每班三炉,每周开炉四天,月生产高铬合金轧管园球五百个。车间生产环境劳动卫生调查测定结果见表1。
A movable small electric furnace of the first steelmaking workshop in our factory was put into operation in the early 1960s, but the equipment and technology have not been improved so far. The height of the workshop is only 5 meters, the workshop area is 100 square meters and the ventilation window area is less than Ten square meters. Each kiln melting steel 100 kilograms, add 30% fluorite, about 40 minutes a furnace. Each class of three furnaces, open four days a week, on the production of high-chromium alloy pipe garden ball five hundred. Workshop production environment labor health survey results in Table 1.