The three-drum dryer is a large-scale industrial drying equipment with high efficiency and energy saving. Its characteristic is that the structure consists of three rotating drums, and the drying process of the material is completed by hot air or gas heating. The following is a detailed introduction to the three-drum dryer:
The structure and working principle of the three-drum dryer
1. Structure: The three-drum dryer consists of three coaxial horizontally placed inner, middle, and outer drums. The material enters the first drum from the feed end, is dried and rotated by the three drums, and finally discharged from the discharge end.
2. Working principle: The material continuously rolls and rotates in the drum, and exchanges heat with hot air or gas to achieve the drying of the material. During the whole process, the material can be evenly heated and dried to achieve the effect of efficient drying.
Technical characteristics and Advantages of the three-drum Dryer
1. High efficiency and energy saving: Compared with the single-drum dryer, the production capacity of the three-drum dryer is increased by 48-80%, the evaporation intensity per unit volume can reach 120-180kg/m³, and the standard coal consumption is only 6-8kg/t.
2. Compact structure: The whole machine is arranged horizontally, supported by rollers, and the large and small gear transmission is canceled and replaced by roller transmission, making the equipment more convenient to install, simpler to operate, and more reliable to run.
3. Wide range of applications: It can adapt to the drying of various raw materials, including clay, coal, slag, iron powder, etc., and is widely used in chemical, metallurgical, building materials, food, and other industries.
4. Environmental protection and energy saving: The use of a variety of lifting plate designs makes the exchange between materials and hot flue gas more sufficient, reducing the mechanism of the "wind tunnel" in the dryer cylinder. At the same time, the external surface area is reduced by more than 30% compared with the single-drum rotary dryer, with less heat loss, which improves the working environment and working conditions.
Application scope of three-drum dryer
1. Chemical industry: used for drying chemical raw materials such as alumina, ammonium nitrate, ammonium sulfate, and chemical products such as polyester, polyethylene, and polypropylene.
2. Metallurgical industry: used for drying minerals and ores such as bauxite, chromite, and iron powder.
3. Building materials industry: used for drying building materials and products such as cement, gypsum, lime, and ceramics.
