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<blockquote data-quote="Guest" data-source="post: 111332"><p>Just a thought on wet milling.</p><p>I have used my mill for over 25 years with many different rotor and screen configurations and the best results have always been when I dry crush.</p><p>When I introduced a water feed in the belief that it would keep the dust down and I could crush straight into my sluice, I found that the water would wash the crushed quartz through the screen, but the particle sizes increased to a point where they would sit on top of the screen and clog it. </p><p>The water going through the mill slowed down the particle flow, and cushioned the blow from the hammers onto the quartz. The wet quartz simply stopped in the bottom of the mill, on top of the screen.</p><p>If you dry crush, the quartz remains mobile, is shattered properly by the hammers, and is finer as it leaves the mill which frees the gold and makes it easier to recover. </p><p>Just make sure you wear a good dust mask, safety glasses, and ear plugs. </p><p>The product I get from my mill is .25mm or finer. </p><p>With a wet feed, I had 3mm pieces clog the screen. </p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="Guest, post: 111332"] Just a thought on wet milling. I have used my mill for over 25 years with many different rotor and screen configurations and the best results have always been when I dry crush. When I introduced a water feed in the belief that it would keep the dust down and I could crush straight into my sluice, I found that the water would wash the crushed quartz through the screen, but the particle sizes increased to a point where they would sit on top of the screen and clog it. The water going through the mill slowed down the particle flow, and cushioned the blow from the hammers onto the quartz. The wet quartz simply stopped in the bottom of the mill, on top of the screen. If you dry crush, the quartz remains mobile, is shattered properly by the hammers, and is finer as it leaves the mill which frees the gold and makes it easier to recover. Just make sure you wear a good dust mask, safety glasses, and ear plugs. The product I get from my mill is .25mm or finer. With a wet feed, I had 3mm pieces clog the screen. Hope this helps. [/QUOTE]
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