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sachine
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Join Date: Aug 2011
Posts: 1

Kiln Power

08/05/2011 5:14 AM

kiln running at 200 tph at 4.0 rpm with very disturbed burning zone ,what may be the reason while changing its rpm to 1.5 & feed at 110 tph, KW of the kiln motor(vfd operated) decreased to 8 kw, although after proper kiln operational steps its KW got normal & running very fine.can any one answer me the reason?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#1

Re: kiln power

08/05/2011 5:21 AM

For a brief period, the motor had to lift more material into the tumbling zone than it would have done at the earlier speed.

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TonyS
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#2

Re: kiln power

08/05/2011 5:53 AM

If you watch the burden in a rotary kiln you will see it lift on the kiln side and then tumble back, a bit like waves on a beach. Increase the speed and burden then as you said yourself it becomes very erratic.

What is the rated throughput of the kiln?

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pipeit
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#3

Re: Kiln Power

08/11/2011 12:23 PM

4 rpm seems very High for this application 1.5 to 2 is much more stable.

Is this a kiln for making portland clinker?
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