Cement Manufacturing Process Flow Chart

Cement manufacturing process is mainly divided into three stages, namely, raw meal preparation, clinker burning and cement grinding.

Generally speaking, the cement industry production is Portland cement. Portland cement is a kind of delicate, usually gray powder, which consists of calcium (from limestone), silicate, aluminate and ferrite(clay).

Mentioned cement production people will say "two grinding burn",that means cement production process mainly includes three stages: raw meal preparation, clinker burning and cement grinding. The cement manufacturing process flow chart is shown as follows:

Cement Manufacturing Process Flow Chart

The whole cement manufacturing process is very complicated, which mainly include seven steps as follow:

  • Crushing And Preblending
  • Preparation Of Raw Material
  • Raw Material Homogenization
  • Preheating And Precalcining
  • Burning Cement Clinker
  • Cement Grinding
  • Cement Packing And Storage

In the cement manufacturing process, most material must be broken, such as limestone, iron ore, clay and coal etc. Limestone is the main raw material for cement production, each producing a ton of clinker needs about 1.3 tons of limestone, more than 80% of raw material is limestone. Our company has a variety of limestone crushers for your choice, such as jaw crusher, impact crusher, cone crusher, VSI crusher and hammer crusher,etc.

According to availability and chemical composition, additional components could be added towards the raw mix. These are referred to as "Secondary" raw supplies.In the cement manufacturing process, each producing 1 tons of cement grinding material at least 3 tons (including fuel, clinker, gypsum, mixture and all kinds of raw materials).

The stability of raw material composition is the premise of clinker burning system. Raw meal homogenizing system stabilizes the raw ingredients into the cellar of the final control action. Clinker burning The rotary kiln is a cylindrical steel vessel, that is inclined for the horizontal at 2.5% to 4.5%. The kiln slowly rotates at 0.5 – 4.5 revolutions per minute to allow the material to tumble by means of the kiln to ensure adequate residence time in the kiln to accomplish the needed thermal conversion processes. The finely ground coal is fed for the firing end of the kiln exactly where it really is burned to create a gas temperature of around 2,000°C. A preheater consists of several stages contained in a tall preheater tower, which utilizes the heat produced by the flame at the firing end from the kiln to preheat the raw supplies as they move by means of the various stages of the tower. Kiln systems with preheaters are a lot more fuel effective than extended kilns, making use of up to 50% less energy.

Once the clinker has formed, and has arrived in the firing end from the kiln, it drops into a planetary cooler, exactly where the clinker is cooled to roughly 100°C above ambient. It's then transported to the clinker storage silos.

Related Information

  1. Cement Clinker Processing Plant
  2. Cement Mixer Machine
  3. Cement Clinker Grinding Plant
  4. Cement Grinding Unit
  5. Cement Making Plant

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