Rotary Kiln Process and Operation at Cement industry Part 2

This course consists of

Starting-up Sequence of the Kiln Line in general
Starting-up Sequence of the Kiln Line
Start of the Kiln Line / Kiln Feed
Increasing performance
Precondition: Clinker in the Sintering zone / in the Cooler
Normal Operation
To Expected Temperatures / Pressures:
Main Control Loops of the Kiln
The Optimum Kiln System

Control Loops Rotary Kiln
includes

1. Kiln Hood Pressure
2. Static pressure (plate pressure, chamber pressure) of grate 1
3. Cooling Air Quantities of Cooler Fans
4. Pressure after DOPOL - fan Normally – 5 mbar
5. Temperature after Cooling Tower Normally 150…180°C

Troubleshooting
includes

Weak Rotary kiln
Kiln Flash / Avelange from preheater
Clogged Cyclon
Red Spot (Rotary Kiln Shell)

Normal shut-down of the kiln plant

Shutting-down in case of certain malfunctions
includes

Failure of the main burner
Failure of clinker transport equipment
Failure of Raw meal feed system
Failure of Exhaust gas fan
Failure of kiln drive

Operation in case of a power failure
Emergency power consumers Have to be available!!!

Optimisation of the plant
includes

Optimal Operation
The Fuel ….whereto?
Typical operating parameters
Watch temperatures/pressures:

Adjustment of Flame
includes

Why?
How (Heavy oil firing)?
Long slim flame
Short wider flame
Medium flame

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