The three return dryer is a high-efficiency combined three cylinder dryer. Large three cylinder dryers, usually 6-7 meters long, are divided into two structural forms: straight cylinder and conical cylinder. The flow of materials is driven by the blades in the cylinder (i.e. guide plates) along with the rotation of the cylinder. They are suitable for straight cylinder or conical cylinder structures. The three return dryer is made up of three concentric cylinders with different diameters nested together, instead of interlocking. It is a chain. This special structure determines its output, so this new dryer is also called the three return dryer.
Product advantages
The high-efficiency combined three return dryer produced by Hebei Zhiyu has a compact structure and a small floor area, which is one half of the floor area of single cylinder drying with the same output. It is reliable in operation, low in energy consumption, high in thermal efficiency, good in material drying, easy to achieve automatic control, and few operators.
Main purpose
The high-efficiency combined three return dryer is mainly used to dry granular materials within a certain humidity range, such as yellow sand used in the dry powder mortar industry and various specifications of molding sand used in the foundry industry. Blast furnace slag for building materials cement industry. Small particle clay is used in the chemical industry for small particle materials that do not have chemical changes and are not afraid of high temperature and dust pollution. According to the requirements of different industries for the final moisture of dried materials, the moisture content of dried materials can reach below 1-0.5%.
Materials entering the dryer should not stick to the cylinder wall and lifting plate. The temperature of the gas entering the dryer for heat exchange should not be higher than 750 ℃. If there are special requirements for high-temperature drying, the inner cylinder and poplar board at the entrance of the dryer can be made of heat-resistant steel plate.
