Major Raw Material in Cement

The major raw material used in cement production is limestone. Other raw materials include shale, clay, and iron ore. Limestone is the main raw material used in the production of cement, and is found in abundance across the globe. The limestone is quarried, crushed, and blended with other raw materials to form a basic raw material mix.

The chemical composition of limestone is primarily calcium carbonate, which is a key component in the production of cement. Once the raw materials have been blended, they are ground into a fine powder in a cement mill. This process is known as milling, and it is the first stage in the production of cement.

After the raw materials have been ground into a fine powder, they are transferred to a storage silo where they are stored until they are needed. From here, the raw materials are transported to a kiln where they are heated to a high temperature in a process known as calcination. During calcination, the raw materials are heated to a temperature between 1,450°C and 1,500°C. This causes a chemical reaction to occur where the calcium carbonate is converted into calcium oxide.

Once the raw materials have been calcined, they are transferred to a cement kiln where they are mixed with other raw materials such as iron ore and shale. The mixture is then heated to a high temperature until it reaches a molten state. The molten mixture is then cooled and ground into a fine powder to produce cement.

Overall, the production of cement is a complex process that involves the use of different raw materials. Limestone is the main raw material used in cement production, with other raw materials such as shale, clay, and iron ore also used. These raw materials are blended and ground into a fine powder, and then heated to a high temperature in a kiln. The resulting mixture is then cooled and ground into a fine powder to produce cement, which is used in a variety of construction projects around the world.

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