Key Specifications/Special Features:

Kiln feed magnesite is fired in the kilns to produce either caustic calcined magnesia (at about 900°C) or deadburned magnesia (at about 1.800°C). During calcination magnesite (MgCO3) is decomposed to Magnesia by release of Carbon dioxide. The calcination process which controls the formation of magnesia crystals as well as the location and behavior of impurities is a key driver of the characteristics of the final products (e.g. specific gravity, reactivity, specific surface area, loss on ingition, etc.).

The most critical aspect of calcination, both in terms of quality and efficiency, is the control of the temperature profile in the kiln. Control is achieved by varying several parameters such as fuel/air ratio, primary and secondary air flow and flame shape.

The traditional calcination method for magnesite calcination is carried out in the shaft kiln, and rotary kiln method is also used.

Both shaft kiln and rotary kiln are to calcinate the lump ore with long calcination time and uneven calcination, which affect the product activity and results in environmental pollution and resources waste.
The application of dynamic calciner can solve the existing problems.