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Technical Cement Forum / Un even load on cement mill twin drive

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BLM 21/12/2009 09:24:14

Un even load on cement mill twin drive

Dear Experts,

We have two identical cement mills (Ball Mills) of 140 tph capacity with twin drives (each drive 2500 KWh). The motor drawing power is as follows.

Pressing side drive load Lifting side drive load

Cement mill-1 2178 KWh 1645 KWh

Cement mill-2 1818 KWh 2120 KWh

1) What is the reason for difference in load of pressing side and lifting side motors in the same mill?

2) Why pressing side motor is drawing higher power in cement mill-, where as in cement mill-2 pressing side load is less?

For your valuable suggestion please.

Vikpro 22/12/2009 11:18:50

Dear BLM,

Reason of high load on one side, as fresh clinker with moisture climb more with liner causes more load to other side comparing to hot high blain cement at discharge side.

( semi fluid type movement )

Vikpro

gks 29/12/2009 02:14:52

Dear BLM,

1.Due to reaction of force is oppisite to direction of rotation of mill in pressing side and lifting sise reaction force is same direction . therefore same kw motor drawn different load.

2. Due to different length of chamber in both mill

(may charge required different) causing different kw in both mill.

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