为评价机立窑水泥厂窑面高温作业危害，提供实施劳动安全卫生分级管理的依据，我们采用湿球黑球温度（ＷＢＧＴ）指数法，对２５家机立窑水泥厂窑面高温作业危害进行监测评价。１　对象与方法１．１　对象　选择生产相对稳定的２５家机立窑水泥厂作为调查对象。１．２　方法　 In order to evaluate the hazards of high-temperature operation on the kiln face of the kiln cement kiln plant and to provide a basis for the implementation of the classified management of occupational safety and health, we used the wet bulb black ball temperature (WBGT) index method to conduct the high-temperature operation hazards on the kiln face of 25 kiln cement kilns Monitoring evaluation. 1 objects and methods 1.1 object selection Relatively stable production of 25 shaft kiln cement plant as a survey. 1.2 method