为了节约能源和降低生产成本,对干燥系统作了改造:在每套干燥系统中各加了1台列管式换热器及1台旋风分离器,利用其余热给工艺用压缩空气加热。经过改造后,不仅每套设备的实际能耗可以降低4.3 k W,5套结晶干燥设备每年共节约电量172 000 k W·h,而且可减少流程中废气对环境造成的热污染。 In order to save energy and reduce production costs, the drying system was modified: one set of tube-type heat exchanger and one cyclone separator were added to each drying system, and the remaining heat was used to heat the process compressed air. After retrofitting, not only the actual energy consumption per unit of equipment can be reduced by 4.3 kW, the 5 sets of crystallization drying equipment save a total of 172,000 kW · h of electricity each year, but also reduce the thermal pollution caused by the exhaust gas in the process.