Lyle Brown
(not verified)

Re: Hard Groove Index

Posted on 16. Apr. 2007 - 07:09

I can tell you the meaning of it:

"..empirical ranking of the relative grindability or ease of

pulverization of a coal under standardized conditions.."

I suspect you need someone to test your material to determine your actual values. Maybe someone has some generic information floating around.

Regards,

Lyle

Hard Groove Index

Posted on 16. Apr. 2007 - 07:26

Hi,

If any one could give me the range of HGI for Coking coal, iron ore, lime stone that will be great help for me