Revised Customer process calciner in the Glass & Minerals sector

Calciner

Calcination of clinker raw materials

PROCESS DESCRIPTION

Calcination, also known as de-acidification, describes the expulsion of CO2 from the limestone at approx. 850°C upwards.  This process step takes place in the calciner and in the calcining zone of the rotary kiln. The calciner is usually to be found in the form of a cyclone pre-heating tower (formerly LEPOL kiln). The raw meal is heated in this counter-current heat-exchanger. The energy for the calcination reaction must also be introduced here, or via a burner in an additional pre-calciner. Modern pre-calciners already use up to 100% replacement fuels. 

Revised Application technology calciner in the Glass & Minerals sector

Calciner

Increasing production or TSR with oxygen

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