电厂2粉尘超标的岗位是推煤机司机室和灰库放灰处，检测值分别为4.2、1.6mg/m3；
In power plant number 2 , the posts that dust exceeding allowed limited values were the coal pusher cab and the ash storehouse where put the ash , which the determination values were 4.2,1.6 mg / m ~ 3 respectively ;
推煤机