• Type of furnaces: rotary and continuous
• Production method: removal of impurities, removal of moisture and cooking at a relatively high temperature

The reason for the naming of calcination for conventional thermal processes is because of its most common use, which is the thermal decomposition of calcium carbonate (limestone), the result of which is the production of calcium oxide and carbon dioxide gas. Therefore, thermal decomposition processes of this type for different materials are called calcination

Calcination is done in different shaft kilns (vertical kilns) and rotary kilns (rotary kilns) and fluidized bed kilns

Mineral calcination processes are used in various industries such as lime and cement industries, dolomite, gypsum production industry, glass industry, iron and steel industries, refractory industry (such as chamotte baking, etc.), sugar and sugar industries, magnesium production industry, etc

Also, purification processes are used to convert sulphide minerals into oxide materials. Purification of lead and zinc ore, copper sulphide ore, etc. is one of the most common purification processes, which generally takes place in rotary or fluidized bed furnaces. The use of fluidized bed furnaces for refining minerals is one of the modern methods that have high efficiency and lower energy consumption than common furnaces

In general, these furnaces include the following thermal parts

Preheated zone: where minerals are dried by heat and heated to near calcination temperature. A temperature between 200 and 600 degrees Celsius

Calcification zone: the zone of decomposition of mineral matter due to heat, which is between 800 and 1400 degrees Celsius

Cooling zone: the cooling zone of the baked mineral with the help of blowers

Gamma Industrial Group, with a history of producing and manufacturing these equipments for various mineral and industrial materials, is able to provide the best equipment with the lowest price and the best efficiency and lifespan for the mentioned items