Sludge can often be seen in our living environment, and its sources are very extensive, such as domestic sludge, industrial wastewater sludge, papermaking sludge, etc. These sludge are by-products generated in the wastewater treatment process. In recent years, the treatment capacity of sludge has been increasing, and the high water content of sludge makes it difficult to treat. If left untreated for a long time, it is easy to decompose and produce a foul odor, causing environmental pollution. In the face of high sludge production and difficult treatment, sludge dryer equipment has emerged in front of the public. Sludge dryer equipment can process a large amount of sludge every day. In response to the characteristic of easy agglomeration during sludge drying, sludge dryer equipment has changed the traditional single drum drying mode of equipment, greatly expanding the application range of traditional dryers. It can not only dry various types of sludge, but also dry various high humidity and high viscosity materials. Moreover, the dispersing device and lifting and guiding device installed inside the drum can effectively prevent sludge from clumping and sticking to the wall inside the drum, which is beneficial for improving drying efficiency and shortening drying time.