目前,国内采用重、浮选-蒸馏法生产汞的厂矿日益增多。但选厂产出的浮选汞精矿一般含水15～20%,因而必须使其预先干燥至含水低于5%方能入炉冶炼。各厂矿现行采用的干燥设备与方式都较落后,其中有圆盘、烘房和平板烘烤等。这些干燥方式的严重缺点是:1、干燥温度难以准确控制,致使精矿中的辰砂氧化而离 At present, the domestic use of heavy, flotation - distillation of mercury production plant is increasing. However, flotation concentrates produced by the concentrator generally contain 15-20% water and must be pre-dried to a moisture content of less than 5% before being smelted. The factories and mines currently used drying equipment and methods are more backward, including disc, drying room and flat baking. The serious shortcomings of these drying methods are: 1, the drying temperature is difficult to accurately control, resulting in the cinnabar ore concentrate oxidation