Coal Grinding

Posted in: , on 21. Aug. 2002 - 16:12

Hello

I want to have your experiences and comments for coal grinding in ball mill.We are using 3 types of coal in different percentages and different grindability hardgrove y´ndex.For example:

Type A:30% HGI=49

Type B:35% HGI=55

Type C:35% HGI=36

With this my´xture we are aiming to have certay´n amount calori and sulphur value.We are not taking account of grindability factor.

In ball mill what can be the reaction of this situation?

Also another problem whivh I want to share with you is:

The percentage of total sulphur is changing nearly 30% between inlet coal mixture and outlet dust coal product.

The outlet amount is high.

We are taking hot gas from preheater system after passing thruogh a cyclone.

I am waiting your comments.

Thanks a lot for your interest.

Sincerely Yours

Write the first Reply