Cooling rack?
The grate cooler in a cement plant cool and transports the cement clinker from the rotary kiln and provides heating air (secondary air) for the rotary kiln and preheater. The performance of the grate cooler will directly affect the production efficiency, energy consumption, and clinker quality.
The clinker fed into the grate cooler can lower the material temperature from 1300-1400℃ to below 100℃ in just a few minutes.
What are the main functions of a grate cooler?
🌬️ Provide proper clinker cooling rate and improve quality for grinding cement clinker. When the clinker is cooled, a portion does not have time to complete crystallization and becomes a glassy phase. The other part even crystallizes finer than that obtained by crystallization at a normal cooling rate. Such clinker can be transformed into higher-quality cement. Also, because the clinker particles will produce thermal stress and crack after rapid cooling, their grindability will be greatly improved.
🌬️ Provide hot air to the rotary kiln as the secondary air and the preheater as the tertiary air; improve the thermal efficiency and reduce the energy consumption of the clinker production line.
🌬️ Heat the residual hot air for waste heat power generation and coal mill drying (optional).
🌬️ Because all clinker coolers have a built-in crusher that also crushes the clinker and quench it to the lowest possible temperature to meet the requirement for clinker transportation and cement grinding.
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