Winter, animals, plants, etc. should be warm and, of course, dedusting equipment is needed for the winter warm. Rockwool external use steel tile is protected against Rockwool by rain or snow corrosion damage. Onset of winter, the temperature decreased, dust in use process is very prone to condensation. condensation if not promptly and properly treated, will make erosion intensifies dust removal equipment, bag hydrolysis and shorten the life of dust, severe dust when even make bond in the bag surface, clogging the bag pores, leading to a surge resistance dust removal equipment, which does not work. to carry out insulation work precipitator, outside insulation asbestos dust was to ensure that the internal temperature of the electric field at a temperature above the dew point, in order to prevent dust from flue gas condensation and paste bag or bonded to the dust removal equipment. Therefore winter dedusting equipment for thermal insulation is very important.