The wet waste gas produced by the drying equipment of indirect heating is used in the drying of material after dewatering by cooling and dehumidification by heating. Some waste gases are extracted and disposed according to a certain proportion, and the concentration of volatile organic compounds in the circulating gas is limited to the safe range.

 

By recycling the waste gas by cooling and removing water, this technology concentrates the volatile organic compounds and other pollutants in the waste gas. The concentrated waste gas incinerates,  solving the odor problem of the drying process of the bacteria residue and other materials.