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Wear in cones

03/31/2008 11:28 PM

Hello, I work in a mechanical workshop in a pulp mill. One of our recurring problems is wear in spools on our M.D. cleaners. The liquor and stock is cleaned centrifucally in stainless steel cones and the spool at the bottom consists of two cones about 200mm long x 150dia and 80mm on the small end welded together on the small end. With the swirling motion imparted in the product, the grit chews through them pretty quick. Any ideas, maybe something ceramic.

Thanks, Rex Devantier

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Anonymous Poster
#1

Re: Wear in cones

04/01/2008 6:48 AM

dear Rex, I think the most convenient solution is the use of replaceable lining parts. Depending on the abrasive components found in the rejects, the material can be ceramic, epoxy, casting nihard, etc. Hope this is useful, Abel , Chefdechocolate

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Guru

Join Date: Feb 2008
Location: Van Nuys, CA
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#2

Re: Wear in cones

04/01/2008 4:00 PM
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Guru

Join Date: Jul 2006
Location: Silicon Valley
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#3

Re: Wear in cones

04/02/2008 2:01 AM

When you come from France, you get used to this. "Meeps!!!"

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#7
In reply to #3

Re: Wear in cones

04/02/2008 1:16 PM

What's this France touch? New Zealand is a helluva long way from France.

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Power-User

Join Date: Sep 2007
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#4

Re: Wear in cones

04/02/2008 10:33 AM

Spray! More than likely your digester's are already sprayed for corrosion protection. They have other materials used to minimize wear. www.arcmelt.com This application has performed very well on the extraction screens.

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Location: Elmira Ontario Canada
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#5

Re: Wear in cones

04/02/2008 12:07 PM

We had a hammer mill that had to grind fiberglass down to a powder and the glass would wear down the hammers and liners really quickly. We found a company in Quebec that had a process / material that lasted 10 times longer than anything else we tried. Having a couple of worn out cones resurfaced with this will work but the final outcome in longevity would only be known if you try it.

http://www.brospec.com/

Good Luck!

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#6

Re: Wear in cones

04/02/2008 12:33 PM

Hi Rex:

I worked with a chemical company some time ago that was pumping volatile coal-tar pitch (very abrasive) at 220 degrees Celsius.

We tried several different things before having a complete volute body, impellor and cover cast out of satellite.

This material is extremely hard and will likely extend your cone life by multiple factors depending on the material you are using now.

I believe that satellite is a trade name but I am sure if you Google it you will find what you are looking for.

Cheers

mechtech

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Anonymous Poster
#8

Re: Wear in cones

04/02/2008 3:22 PM

Rex

I can help but need little nore info on the equipment type (manufacture, model etc.)

thanks,

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Users who posted comments:

Anonymous Poster (2); AquaLungSensei (1); mechtech (1); NiCrMoNoMore (1); pantaz (1); Rex Devantier (1); vermin (1)

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