Rotary Kiln

Rotary kiln is a high-temperature thermal processing equipment that utilizes rotating drum technology, primarily used for the continuous heat treatment of materials. The core component of this system is a large inclined cylinder, which rotates via a precision mechanical drive system: the cylinder shell is equipped with load-bearing rollers that are supported by robust trunnion bearings and driven by a specialized transmission device. The unique design features a slight inclination of the cylinder relative to the horizontal plane, allowing gravity to facilitate the axial movement of materials inside the drum. By precisely controlling temperature profiles and material residence time, the rotary kiln effectively induces desired physical transformations or chemical reactions in the processed materials, meeting the process requirements of various industrial applications.

Rotary kiln is a multi-purpose high-temperature processing unit capable of handling various materials through different thermal processes. Its major applications include:

1. Calcination

A thermal treatment process that induces chemical dissociation in materials, commonly used in the production of inorganic compounds.

2. Pyrolysis

Thermal decomposition of materials in an oxygen-free environment, typically conducted in indirectly heated rotary kilns for precise process control. Widely applied in recycling industries.

3. Thermal Desorption

A separation process that uses heat to volatilize and remove contaminants (e.g., pesticides) or recover valuable components from solid matrices (e.g., spent catalysts). Indirect-fired kilns are preferred for handling flammable volatiles safely.

4. Organic Combustion

High-temperature oxidation of organic waste to significantly reduce mass and volume, leaving only inert ash as residue.

5. Reduction Roasting

A metallurgical process where metal oxides in ores are reduced by carbon monoxide (CO), typically generated from coal or coke, to extract pure metals or prepare intermediates for further processing.

●Applicable materials: limestone, ash slag, alumina, phosphate rock, alumina, refractory materials, plastic waste, coal gangue, etc.

APPLIED MATERIALS

Suitable for limestone, ash slag, alumina, phosphate rock, alumina, refractory materials, plastic waste, coal gangue, etc.