Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gold Prospecting
Do It Yourself (DIY) Projects
Fine grinding .
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Mike678" data-source="post: 550805" data-attributes="member: 16778"><p>The old timers using a stamper , always had the crushing pass through a 100 mesh . Aperture size 0.147 m.m. or 0.006 inches .</p><p>this is the way you could recover most of the gold . Some of us like to crush up rocks, using a impact mill for example . This will crush to 2 m.m. or less . After screening you have some oversize that still has gold in . What are you going to do with that ? </p><p></p><p>This is my idea and only an idea .First step buy and old cement mixer . Next get an old compressor tank or maybe an old LPG gas bottle , like off a caravan . Cut the top off and fit it onto the cement mixer . It is no good using the cement mixer by itself , the steel is too thin . Compressor tanks and gas bottles have round bottoms . You need some s/steel balls and they can be got on E-bay . Get a.few different sizes . Put the balls in and say 5 kg. of over size plus water . Let it run for 30 mins and then screen again . The good thing about a cement mixer is that you can tip it out . </p><p></p><p>What do you think of this idea ?</p></blockquote><p></p>
[QUOTE="Mike678, post: 550805, member: 16778"] The old timers using a stamper , always had the crushing pass through a 100 mesh . Aperture size 0.147 m.m. or 0.006 inches . this is the way you could recover most of the gold . Some of us like to crush up rocks, using a impact mill for example . This will crush to 2 m.m. or less . After screening you have some oversize that still has gold in . What are you going to do with that ? This is my idea and only an idea .First step buy and old cement mixer . Next get an old compressor tank or maybe an old LPG gas bottle , like off a caravan . Cut the top off and fit it onto the cement mixer . It is no good using the cement mixer by itself , the steel is too thin . Compressor tanks and gas bottles have round bottoms . You need some s/steel balls and they can be got on E-bay . Get a.few different sizes . Put the balls in and say 5 kg. of over size plus water . Let it run for 30 mins and then screen again . The good thing about a cement mixer is that you can tip it out . What do you think of this idea ? [/QUOTE]
Verification
Post reply
Gold Prospecting
Do It Yourself (DIY) Projects
Fine grinding .
Top