With the improvement of the urban sewage treatment rate in our country, the sludge harmless problem is accompanied by an increasingly serious sludge environmental protection industry is eager to sludge resource and energy utilization is to finally completely solve the sludge disposal (exit) problem and reduce energy consumption as a purpose. It is conducive to the development of circular economy and the implementation of the scientific concept of development, which is an important link of regional ecological balance. In response to the market demand, Tianyuan Machinery research and development of sludge harmless treatment problem, completely solved the problem of sludge pollution, the polluted sludge through heating the sludge, so that the water evaporation, so as to achieve the reduction of sludge moisture content process.

The thermal drying process on the market mainly includes fluidized bed drying process, paddle drying process, drum drying process and disk drying process, among which the disk drying process has the widest application and the highest reliability. In response to the market demand, Tianyuan Machinery developed and produced disc desiccant, which completely solved the problem of sludge pollution. The polluted sludge was heated to evaporate the moisture in it, so as to achieve the process of reducing the moisture content of the sludge.