Want to buy coal? +38 (099) 625-23-23
cement production

Cement plays an important role in the construction industry. It is mixed with water, sand, crushed stone and slag to form concrete - a basic building element in modern society. More than 1350 million tonnes of cement used globally every year.

Cement is produced from a mixture of calcium carbonate (typically in the form of limestone), silica, iron oxide and aluminum oxide. The high temperature in the furnace, mainly coal fired, heats the feedstock to a partial melt at 1450 ° C, transforming them into chemically and physically substance known as clinker. This gray granules, which give it the binding properties of the cement. The clinker is mixed with gypsum and milled to a fine powder fraction to make cement.

In the production of cement coal used as an energy source, which need a large amount. Typically, coal is burned in furnaces in powder form. For the production of 1 kg of cement must be about 0.5 kg of coal. Most likely coal will remain an important, integral part of the cement production process, even for years to come.

Coal Combustion Products (CSP) can also play an important role in the production of concrete. CSPs are by and formed from burning coal in coal-fired power plants. These include the ash, bottom ash, scale, etc. Zola, for example, can be used to add together with cement in concrete. Thus, the processing of coal combustion products is beneficial for the environment, acting as a complement or replacement of primary raw materials.