The three processes of sludge dryer refer to solar drying process, paddle heating drying process and high temperature wet oxidation process. The following technicians from Cheng Xiang will briefly introduce three technological processes of sludge dryer to you. 1. High-temperature wet oxidation process The so-called high-temperature wet oxidation process refers to the simultaneous introduction of sludge and pure oxygen into a reaction vessel with the required temperature and pressure. Under the condition of high temperature and high pressure, pure oxygen can oxidize most of the organic matter without catalyst, and the remaining small amount of sludge can be dehydrated and dried by mechanical means, thus achieving the purpose of drying. This process is suitable for non-agricultural occasions, but it can be used as building materials for secondary utilization. 2. Blade heating and drying process The so-called blade heating and drying process refers to the use of a heating and drying system to achieve the purpose of drying. The process mainly includes dryer, sludge feeder, auxiliary heat source, air supply system, heat recovery device, dust control, ash discharge, control system and other devices. 3. Solar drying process The so-called solar drying process refers to the evaporation of dehydrated sludge by solar energy, and 60-80% of dried sludge can be obtained through evaporation. At the same time, in the process of operation, the sludge can be turned over and spread on the floor by using the mixing wheel, and the evaporation efficiency can be improved by increasing forced ventilation. Generally speaking, this solar drying process has the advantages of simple process design, low investment and operation cost, and is more suitable for users who have low requirements on sludge production and need long-term storage. Information from www.wtdry.com.