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Finally Finished Rebuild In Shop.


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#1 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 12:51 PM

We do all kinds of projects involving mineral processing and just got done rebuilding a complete Raymond 50" Roller mill. We had to go thru all the wear parts in the mill and replace what ever was out of spec in the mill. We also built a new millside and return air housing. Ask any question you might have and I will answer them. Here's some photos of the parts loaded on the truck shipping out last Friday.

 

IMG_20160226_160305_473.jpg IMG_20160226_160314_555.jpg IMG_20160226_160322_591.jpg IMG_20160226_160429_276.jpg


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#2 gopher ONLINE  

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Posted February 29, 2016 - 01:29 PM

Would that be same function as ball mill or different?


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#3 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 01:42 PM

They both do the same thing, pulverize material down to specific size. A roller mill is only good down to 99% minus 325 mesh (44Micron) where a ball mill will go down a 2400 mesh(4Micron) size material.


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#4 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 01:48 PM

Here's some info to help anyone understand particle sizing.

 

What does mesh size mean?  Figuring out mesh sizes is simple.  All you do is count the number of openings in one inch of screen (in the United States, anyway.)  The number of openings is the mesh size.  So a 4-mesh screen means there are four little squares across one linear inch of screen.  A 100-mesh screen has 100 openings, and so on.  As the number describing the mesh size increases, the size of the particles decreases.   Higher numbers equal finer material.  Mesh size is not a precise measurement of particle size.

 

What do the minus (-) and plus (+) plus signs mean when describing mesh sizes?  Here’s a simple example of how they work.  –200-mesh would mean that all particles smaller than 200-mesh would pass through. +200 mesh means that all the particles 200-mesh or larger are retained.

 

How fine do screens get?  That depends on the wire thickness.  If you think about it, the finer the weave, the closer the wires get together, eventually leaving no space between them at all. For this reason, beyond 325-mesh particle size is usually described in “microns.”

 

What is a micron?  A micron is another measurement of particle size.  A micron is one-millionth of a meter or one twenty-five thousandth of an inch.


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#5 TomLGT195 OFFLINE  

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Posted February 29, 2016 - 03:00 PM

Do you have to go and set it up too? or just rebuild it ?


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#6 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 03:30 PM

Yes, either Dad or I will oversee the install and we will do the start up.
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#7 HANKG ONLINE  

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Posted February 29, 2016 - 05:17 PM

Is that a vacuum for dust collection or a blower.


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#8 CRFarnsworth ONLINE  

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Posted February 29, 2016 - 05:47 PM

I think your shop is bigger than mine!                Rick


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#9 Cat385B ONLINE  

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Posted February 29, 2016 - 06:00 PM

How's the rear end you had rebuilt last year holding up to working in the shop?


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#10 KennyP ONLINE  

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Posted February 29, 2016 - 06:17 PM

How's the rear end you had rebuilt last year holding up to working in the shop?

:bigrofl: :bigrofl: Good one, Cat!



#11 KennyP ONLINE  

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Posted February 29, 2016 - 08:16 PM

Brian, on a more serious note, I'd love to see some of this at work!



#12 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 09:05 PM

Is that a vacuum for dust collection or a blower.

 

It's called the system fan and it operates in a closed loop system. In all reality it works as a suction fan to pull air thru the mill to sweep the ground material out of the mill and through the classifier and on to the Cyclone. It works on both CFM's and Inch's of negative water column.


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#13 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 09:07 PM

How's the rear end you had rebuilt last year holding up to working in the shop?

 

Holding up good so far, just drags the ground ever so often!! :rolling:


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#14 MFDAC OFFLINE  

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Posted February 29, 2016 - 10:35 PM

What is being mined to be crushed in this machine? Ball mills were pretty much the final crusher of choice at the gold mines up here. I ran across one of those old "Chilean mills" (I think that's what they were called) at a ghost town up in the hills many years ago---Technology has come a long way from an animal dragging a big rock around in circles to crush ore to nowadays--LOL!

 

Cool stuff, Brian, glad you are back on the job almost 100%

 

DAC


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#15 Texas Deere and Horse OFFLINE  

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Posted February 29, 2016 - 10:47 PM

What is being mined to be crushed in this machine? Ball mills were pretty much the final crusher of choice at the gold mines up here. I ran across one of those old "Chilean mills" (I think that's what they were called) at a ghost town up in the hills many years ago---Technology has come a long way from an animal dragging a big rock around in circles to crush ore to nowadays--LOL!

 

Cool stuff, Brian, glad you are back on the job almost 100%

 

DAC

 

If this particular application, they are grinding Iron ore to a 99- 200 mesh. These mills can grind about any mineral, Calcium Carbonate, Kaolln Clay, Barite, and Gypsum to name a few as long as it isn't too soft. Really soft stuff just balls up or slides around in them.

 

We actually have a new customer looking at one of the smaller mills, a 30" Williams,  we have to use in processing gold ore right now.


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