Zhengzhou Hengyang Industrial Co., Ltd
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Indirect heat kilns are among the devices used in special occasions. Because some materials, such as anthracite, coke, and flammable chemicals that burn or change structure in direct exposure to flame, must be calcined by indirect heat, furnaces are required. And indirect heat dryers are essential. Also, cooking of chemicals and minerals that are very powdered and micronized and in the face of air and gas flow from the burner flame are dispersed in direct heat furnaces, and it is not possible to perform operations in conventional furnaces. Indirect heating rotary kiln are performed.
Indirect Heating Kiln Application
Baking and calcination of anthracite and coke
Production of drugs
Production of chemicals
Production of activated carbon
Drying powder materials
Calcination of powdered and very fine materials
Production of various types of coal
Production of various oxides
Heating all materials that ignite in the face of direct flame
Operation
Drying, pre-calcining, high temperature reaction, and heat treatment
Superb air-tightness enables application to the high temperature reaction process of various kinds of powders in an acid, neutral, or reducing atmosphere.
Heating temperature and material of shell (retort)
300ºC to 1200ºC
Various kinds of stainless steel, Inconel, hastelloy, or heat resisting cast iron (Kurimoto Thermalloy) is used for the shell with consideration given to resistance to heat and corrosion.
Heat source
Electricity (standard), gas, or heavy oil
Objects
The rotary kiln is available for the processing of fine chemical materials up to micron order in size including pigments, ferrite, active carbon, carbon black, various kinds of ceramic materials, powder and particles such as industrial chemicals, and pellets.