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Jun 6, 2017

SLIDE - Kiln System - Introduction to cement and concrete (Holcim)


Hệ thống lò quay trong công nghiệp xi măng và bê tông.

..the following processes occur:

1. Drying
2. Preheating
3. Calcination
4. Sintering
5. Cooling

Materials into the kiln – Raw Feed.

The Primary Feed materials to the Kiln system are:
Limestone
Silica
Aluminum
Iron
These supply
CaO (C)
SiO2 (S)
Al2O3 (A)
Fe2O3 (F)
These raw materials must be present in the correct  proportions in the ‘raw meal’ or kiln feed.


Clinker Production Processes.

We can identify four distinctly different production processes
Wet Process
Dry Process
Semi-dry Process
Semi-wet Process

The wet process was the predominant process in the past.
Today all new installations are dry process based

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