Application of Magnesite and Calcination Process

Magnesite consisting of magnesium carbonate is a main source of magnesium, ranking first across the world, Its productions have been widely used in the field of metallurgy, chemistry and construction and so on. The industrial use of magnesite is processed magnesite, such as: hard burned magnesite, light burning magnesium oxide etc. The most commonly used equipment in the process of calcination of magnesite is magnesite calcining kiln.
Magnesite was calcined at different temperature and the different physical and chemical production of magnesite clinker come into being. After calcined at low temperature 700-1000 degrees Celsius, magnesite and water compound very quickly, and has a bond. When calcination temperature up to 1000℃, magnesite does not easily occur chemical reaction with water and acid, so the corrosion resistance is stronger and it is more suitable for high temperature corrosion resistant material. Calcined magnesite at high temperature produces MgO and CO2.
traditional magnesite calcining equipment is shaft kiln which has many disavantages, such as: material uneven heating, high energy consumption and so on. Rotary kiln is a cylinder with 3-3.5% gradient. The kiln rotation promotes the material mixed in rotary kiln, which makes the material be mixed with each other and contact with each other. Kiln head coal combustion produces a large amount of heat, heat was passed to materials in flame radiation, heat convection, brick kiln (kiln crust) conduction. The material move forward in the kiln depending on the inclination and roll of rotary kiln.
Using rotary kiln to calcine magnesite can be continuous production and be with the advantages of large production capacity, high degree of mechanization, easy operation and maintenance, high activity calcined dolomite, high magnesium extraction rate. With the rotation of the kiln, the kiln material fully tumble, and enhance the radiation heat transfer process. The raw material is heated evenly, the calcination is complete, and the calcination temperature is easy to control.
Henan Zhengzhou Mining Machinery Co. Ltd is a professional manufacturer to supply magnesium industry equipment, it specializes in the production of magnesite calcining kiln for 50 years.