This is a 2.2 * 28m domestic sludge drying machine according to customer requirements, with a daily output of 400 tons. The internal structure is made of stainless steel, which is corrosion-resistant. Various patented structures are adopted in the cylinder. Due to the high water content and strong smell of domestic sludge, the whole drying production line is equipped with important equipment such as carbonization furnace and multi-stage tail gas treatment device in addition to the main drying machine. After a series of harmless and resource treatment, the dried and carbonized sludge can be used as building materials, creating unexpected value.