Cheap way to grind stones without spending several days? - Grinding & Classification Circuits - Metallurgist & Mineral Processing Engineer

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Cheap way to grind stones without spending several days? (4 replies and 2 comments)

4 years ago

adbcbd 4 years ago

Hello,

I have around 10 Kgs in total of different stone ores like sulfur and quartz and stibnite that I need to grind to 1.5mm.

However, I don't want to pay much and don't have so much free time to spend grinding. I tried to search for solutions online, but laboratories wanted a few hundred dollars and the guide I was given would require so much time on my part, and I don't have much time

So I was wondering if experts here can give me advice?

Thank you for your time

Mike

4 years ago

Mike 4 years ago

With such a small amount, you do not have much choice. You could put it all into a small sealable container and roll it back and forth awhile, or just hit with a hammer. You are probably spending way more time thinking about than doing.

Mike

4 years ago

see https://www.youtube.com/watch?v=BvdnlwFMtPw

adbcbd

4 years ago

adbcbd 4 years ago

I see... This is interesting. I will be trying it. Maybe adding some dense metallic stuff and put in the cylinder to help with the crushing..

I tried with the hammer but was not practical.

Does this method work on big stones (around 15cm) and on hard stones like quartz?

Mike

4 years ago

Mike 4 years ago

Alternatively for very small batches (1-2kg) try https://www.google.com/search?q=stone+tumbler&rlz=1C1CHBF_enUS806US806&sxsrf=ALeKk030IYbANitY2L6pn2FLqzXjZcwUVw:1588473749560&source=univ&tbm=shop&tbo=u&sa=X&ved=2ahUKEwiijM_s1ZbpAhU_IDQIHS_OC9wQsxh6BAgMECw&biw=1493&bih=938

adbcbd

4 years ago

adbcbd 4 years ago

But wouldn't this be too soft for hard stones? For example I am having trouble pounding the galena & quartz with a hammer. I think this tumbler needs to be metallic and spinning really fast otherwise it will take months to be crushed by the tumbler no?

Mike

4 years ago

Time vs money

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