In the process of industrial dryer, Rotary Dryer is widely used to reduce or minimize the liquid moisture content of the material it is handling by bringing it into direct contact with a heated gas. For example, in ore dressing process, after concentrating wet ore and going through the concontrator, the rotary dryer is used to make wet ore dry to produce final dry fine ore.

Rotary dryers are suitable for a wide variety of products, ranging from granular, powdered and crystalline materials, through to filter cakes and sludges for the food, chemical and mineral industries.

The direct rotary dryer operates on the principle of lifting and showering the product through a hot gas stream moving either in parallel or counter-flow. In the indirect dryer, which is more suited to fine and dusty materials, there is little or no contact between the product and the drying gases since they are heated from the outside, via a stationary jacket fitted with either multiple burners or other external heat source. Of course, in order to adapt to all situations in mining industrial operations, when the gas stream is preheated by some means where burner combustion gases do not enter the dryer, the dryer known as an indirect-heated type. Often, indirect heated dryers are used when product contamination is a concern. In some cases, a combination of direct-indirect heated rotary dryers are also available to improve the overall efficiency.

Henan Hongxing produces Rotary dryer and also indirectly heat transfer dryer. The indirect heat transfer dryer made by our company is mainly used in building materials, metallurgy, cement plant for drying of limestone slag, coal powder, slag, clay stone. This dryer is formed by rotary body, lifting blade, driving device, supporting device and sealing ring. The dryer has advantages of reasonable structure, high efficiency, low energy consumption and convenient for transportation.

To sum up, Rotary Dryer is used for drying materials with humidity or granularity in the industries of mineral dressing, building material, metallurgy and chemical, and it can be used for drying many kinds of materials and with convenient and reliable operation; therefore, it has been widely used. Henan Hongxing Mining Machinery Co., Ltd. is waiting for your inquiry.