- To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN
- Use Add New Topic to ask a New Question/Discussion about Crushing.
- OR Select a Topic that Interests you.
- Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
- Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.
-
https://www.911metallurgist.com/wp-content/plugins/wp-symposium-pro/forums/../css/images/wait.gif
Hammermilling Mohs hardness 5 & 6 (6 replies and 3 comments)
Please join and login to participate and leave a comment.
Hello All
Have a newbie question.
we have a geology for a new site and the ore we need for final hammermill
The mineralogical study carried out on this ore allowed us to make the following observations:
Gold ore is macro-grained, whitish, greyish or ocher in nature;
It is composed mainly of quartz, plagioclase, chlorite, pyrites, oxides, iron hydroxides, carbonates and gold;
The crushing and spraying of the quartz ore is done without any significant constraint: although the quartz is generally hard and abrasive, the development of cracking systems (microtectonics) in the ore considerably reduces grinding efforts.
Now my question is from the cone crusher we will have 10mm to put through our hammermill to reduce to +40 mesh (0.420mm or below). (15 to 20tph)
Because the quartz is 7 on mohs scale can we still use a hammermill that is normally spec,d to do mohs5 max 6 ?
I understand the hammermills will wear out quicker but will it still do the job if we recirculate oversize.
This will just be a temporary measure as we have the correct machine on order but lead time is 3 months. availability on correct machines are scarce in the region but can source hammermill that is 5 mohs scale told it can do 6 max.
Thanks for any help
Kevin