Ring granulator or roll crusher

Posted in: , on 15. Mar. 2005 - 11:38

Dear Sir

I AM LOOKING FOR TWO STAGE CRUSHING SYSTEM FOR CRUSHING OF COAL FROM -300 mm to 6 mm at 150 tph capacity

I want to choose between ring granulator and roll crusher for primary crushering -300 mm to -60 mm . i require less fines and economical solution

For secondary crushing i have chosen hammer mill

kindly let me know other possiblities

A R SINGH

A R SINGH DIRECTOR MODTECH MATERIAL HANDLING PROJECTS PVT LTD PLOT NO.325,SECTOR-24 FARIDABAD,HARYANA, INDIA

Re: Ring Granulator Or Roll Crusher

Posted on 17. Mar. 2005 - 03:36

American Pulverizer Company can offer a single roll crusher or a ring granulator for your application, as well as a hammermill for further reduction. We would be glad to send you information on both types of equipment.

Please contact our sales department at:

American Pulverizer Company

5540 West Park Ave

St. Louis, MO 63110

Phone: 314-781-6100

Fax: 314-781-9209

email: sales@ampulverizer.com

Re: Ring Granulator Or Roll Crusher

Posted on 20. Mar. 2005 - 06:34

Dear Mr. Singh,

Two roll crusher is likely to be costly compared to ring granulator. The use of two roll crusher would be justifiable for very hard material or material which is to be prevented from clogging by differential speed of the rotors.

Needless to say both the crushers would be suitable.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25882916

Re: Ring Granulator Or Roll Crusher

Posted on 21. Mar. 2005 - 08:36

Dear Sir

I have received offers and found ring Granulator is much economical than Double roll crushers.

My clients requirement is fine should be less . I would like to know wheter double roll crusher will give less fines compared to ring granulator .

A R SINGH

A R SINGH DIRECTOR MODTECH MATERIAL HANDLING PROJECTS PVT LTD PLOT NO.325,SECTOR-24 FARIDABAD,HARYANA, INDIA
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Re: Ring Granulator Or Roll Crusher

Posted on 31. Mar. 2005 - 07:40

We are able to offer you competitive package of double roll crushers.

In general the roll crushers produces less fines than granulators. In our crushers the main design philosofy has been to produce really a minumum amount of fines.

Please inform me about your details, and we are willing to make the offer for you.

Fine Coal Crushing

Posted on 28. Oct. 2006 - 03:50

Dear Mr. Singh,

Your requirement of fines 300 to -6 mm is too high reduction ratio. You have to use a non-reversible hammer crusher and run it at a slower speed around 25 m/sec so that the fine generation is less. Ring granulator does not produce fines and it is best suited for spreaded stoker boilers. FBC boilers requires -6 mm and only hammer crushers can be used. Roll crushers are expensive.