Screener or Classifier

Posted in: , on 2. Oct. 2003 - 02:40



We are looking at processing a -80 (tyler) mesh bentonite clay. Most of the fines are all ready sized to that (93-95%), but need to grind the rest to match the -80. We want to run about 3-4 tph, so would a screener with a grinder for the over size work or would a classifier be better for our application? Thank you for any information that can be provided.

John

Re: Screener Or Classifier

Erstellt am 2. Oct. 2003 - 11:59

Considering capacity and size distribution a CLASSIFIER shall be

considerd.

sincerly

S.Bar

S. Bar Chief Engineer Ludan engineering LTD.

Definitly Screener

Erstellt am 2. Oct. 2003 - 02:46

ATT. Mr. John Sutton

From the Bulk Portal Forum I received the below information.

We can find a solution to your problems but let's clarify couple of things:

1.

Your product already contains 93 - 95% of (-) 80 mesh.

How do you screen it to day. (Type and size of the screener)

What is the yield after screening. (From 1000kg feed, how much passes

through and how much from the (-) 80 mesh is left on the (+) 80 mesh.

2.

In case you do not have a solution so far, and in case we can provide you

with a very good separation efficiency, would you consider to take the

Oversize (5% of the feed) and use it for other purpose or do you insist (for

cost/kg reason or any other reason) to get 100% of your feed below 80 mesh

3.

Could you send us 50 lt of your feed product (please send us before the

MSDS)

Kind regards

Kroosh Technologies Ltd.

Rami Wittenberg

Business & Marketing Development

Tel: +972 8 8527597

Mobile: + 972 54 656900

Visit our web site: www.kroosh.com

Re: Screener Or Classifier

Erstellt am 2. Oct. 2003 - 03:18

Dear Sir,

You state you would like minus 80 mesh, does it matter what the distribution below 80 mesh is? If it is not a major concern, I would suggest using jet milling to attain 100% minus 80 mesh. Generally yields are 98-99% using this method.

Re: Screener Or Classifier

Erstellt am 2. Oct. 2003 - 03:32

We can supply a system to handle your problem consisting of a feeder machine prior to a centrifugal screening unit to size the bentonite clay through an 80 mesh, which than continues to your next process step. The balance of the 3 to 4 tons, approx. 600 lbs per hour passing through our TCT Cutter which will break up the agglomerates. A vacuum conveying system will return the reduced oversized material to the feed of the screen unit for rescreening. If the layout of this system is flexible we could allow the vacuum conveying system air to also serve for some dust control. This system should be somewhat less than an air classifier system and which should be a convent to understand and operate by your production department.

If this interests you we can provide a proposal for your evaluation.

Attachments

top view tct cutter (JPG)

Larry Stone - Kason Corp., USA
(not verified)

Screener Or Classiifer

Erstellt am 2. Oct. 2003 - 05:03

Dear Mr. Sutton,

There is a good possibility that the product from the grinder can be screened on a Centrisifter which would be less expensive than an air classifier. However, Since our Canadian Company not only buids the Kason Centrisifter they also Represent Sturtevant Air Classifiers and Grinding equipment. I would suggest that you contact Joe Byrnes of Separator Engineering Ltd.

e-mail jbyrnes@separatorengineering.co

tel. 416-292-8822 fax. 416-292-3882

Joe is a competent chemical engineer who specializes in solids processing. He can arrange for testing at both Sturtevant and Kason for you and assist you in the evaluation of the data. Joe supervises our Western Agents who will supply local contact and service if you purchase any equipment thru Separator Engineering Ltd.

I hope the above is helpful.

Very truly yours,

Larry Stone

Re: Screener Or Classifier

Erstellt am 3. Oct. 2003 - 07:10

We do not screen our product. We have a 80' dryer with a baghouse and fan. The velocity from this system pulls the fines into the baghouse and we extract the dust from there. The fines are as small as -325 mesh @ 36.6% pass rate, and we are looking at eventually supplying the consumer with that size. We've in the past tried a 48" sweco screener, but it took 24hrs to do 9 tons and had to pass it through 3 times. We are looking at doing a single pass only. Hopefully I have answered some questions that you have and look forward to any responses that you may have.

regards John

Larry Stone - Kason Corp., USA
(not verified)

Screener Or Classifier

Erstellt am 3. Oct. 2003 - 07:53

Dear John,

If you visit our website www.kason.com you will see that we manufacture both vibroscreens ( direct competition with Sweco) asnd Centrisifters. I would never have rexommended a circular screen foir use with your product. The Centrisifter might work but testwork has to be done to prove the point. If it does work you would find it an easy machine to maintain and low in maintenance costs. Before testing you should ask yourself if nylon would be a suitable material for the screening material. If the answer is positive you might have a inexpensive solution to your problem. If the answer is negative, I believe you are looking at an air classifier as a solution. In any event contact Joe Byrnes and he will work with you.

Best regards,

Larry Stone

Re: Screener Or Classifier

Erstellt am 3. Oct. 2003 - 07:55

Dear Mr. Sutton,

Using jet milling is an efficient and cost effective way to attain the desired particle size. If you would like to contact me regarding jet milling I would be happy to discuss your needs. I am with Powder Technology Inc. located in Burnsville, MN.

Jeff Friederichs

Ph:952-894-8737

email: Jeff@PowderTechologyInc.com

web: www.PowderTechnologyInc.com

Re: Screener Or Classifier

Erstellt am 6. Oct. 2003 - 12:55

I think that a centrifugal mill vith classifier included (a pack) fot thie relatively small capacity will be the more simple solution, due to the expected lower abrasion of bentonite product.

Any way it would deppend of maximum size of coarse fraction > 80 mesh

PCampbell
(not verified)

Re: Screener Or Classifier

Erstellt am 6. Oct. 2003 - 07:57

Dear Mr. Sutton,

Prater Industries manufactures centrifugal sifters and air classifiers for seperation applications. Additionally we manufacture several types of grinders to reduce the oversized material. We would be happy to perform testing on both product lines to determine the best method for your application. I would be happy to discuss this application further, so please feel free to contact me.

Pat Campbell, Lab Manager, Prater Industries, Inc.

Direct Phone (708) 222-4763

Emai: pcampbell@praterindustries.com

Website: WWW.praterindustries.com

Screening Of Bentonite

Erstellt am 7. Oct. 2003 - 03:38

Dear Mr. Sutton:

In my original reply we suggested the method which several others have pick up to present thier products. We have test data that indicates that the Bentonite is screenable on the centrifugal screening units and can size this uint based on that information. As long as brand names are being introduced, we would be using the Gericke Centrifugal unit which is shown on our web site, http/www.apm-tech.com. Our ability to provide a complete single source system will insure that you will have a totally integrated system that will provide the system that works. We can provide testing of your materials on both the Gericke Centrifugal Sifter and the TCT Cutter. Please feel free to contact us at 1-973-966-6966 or fax us at 1-973-966-0175, or email at apmtech@verizon.net. We look forward to hearing from you soon.

Bernhard
(not verified)

Check Screen For Bentonit Clay

Erstellt am 8. Oct. 2003 - 04:15

We have delivered recently a cloth vibrated screen to cut @ 118 mesh with a bulk density of approx. 32.5 lbs/cu ft. Finer screen cuts down to 200 mesh are possible too.

Re: Screener Or Classifier

Erstellt am 8. Oct. 2003 - 09:08

Dear John

One question that instantly springs to mind is how hard is the coarse material. This will instantly determine which Sifter or Sifter mill combo is best suited to your needs.

Please visit our web site at www.powdertechusa.com

or contact me direct at Powder Technologies, Inc

609-914-0521

We can offer both centrifugal sifters, vibratory screeners and coarse and fine mills to suit your requirements.

Best Regards

Rick Isherwood

President - PTI

e-mail info@powdertechusa.com

smalljenny
(not verified)

Supply Claasifier Machine

Erstellt am 13. May. 2009 - 05:51
Quote Originally Posted by john suttonView Post
We are looking at processing a -80 (tyler) mesh bentonite clay. Most of the fines are all ready sized to that (93-95%), but need to grind the rest to match the -80. We want to run about 3-4 tph, so would a screener with a grinder for the over size work or would a classifier be better for our application? Thank you for any information that can be provided.

John

Dear Sir,

We can provide you best quality classifier machine with low price.

We are Chinese company which is a professional manufacture of vibrating Screen. It is a classifier machine, it is easy to move, light weight, long life.

Beside that, we can make out the satisfactory productions as your demand

If you are interest in my information, pls contract me freely.

My email address is ytjenny@ytgrp.com

Looking forward to your reply

Best regards!

Yours sincerely,

Jenny Sun

Re: Screener Or Classifier

Erstellt am 17. May. 2009 - 01:42

Dear Sir,

Please contact the nearest Rotex Sales Representative or undersigned. Rotex screeners screene bentonite in various applications. With a clear understanding of your processes, expectations and of course a PSA of the feed material we should be able to advise you an optimum solution.

Looking forward to hear from you soon!

Kind regards, Freddy Holle, Regional Sales Manager ROTEX EUROPE LTD Aston Lane North, Whitehouse Vale Runcorn, Cheshire WA7 3FA United Kingdom T +44 1928 706100 F +44 1929 706119 M +31 6 51574479 E [email]fholle@rotex.com[/email] W [url]www.rotex.com[/url]