Vertical drying equipment, also called vertical dryer, is designed for the dehydration of briquette and pellet. It has reasonable design, high thermal efficiency, good drying effect and adjustable air volume. This type of vertical dryer is made of steel structure; inner lining adopts heat preservation materials to keep warm; multilayer high temperature castings are adopted in the roaster; there are vibration system, interception system, temperature control system and intelligent control system installed on some relevant parts of the machine; vapor and smoke are collected with the application of a draught fan and a cyclone dust collector.

As the material stays in the mill for a short time, it is easy to detect and control the product particle size and chemical composition, to reduce duplication of milling, stable product quality.Material to be dried enters the dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. LM series vertical milling machine can be widely used in such industries as cement, power, metallurgy, chemical industry, non-metallic mineral. It is used to grind granular and powdered materials into powder with required fineness. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot gas stream as it falls.

The gas stream can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a direct heated dryer. Alternatively, the gas stream may consist of air or another (sometimes inert) gas that is preheated. As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, it can meet requirements with diffirent humidity.

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