Anthracite drying

QIT-LL
(not verified)
Posted in: , on 4. Sep. 2007 - 18:48

Hi, I'm working on the replacement of an old Roto-Louvre coal dryer, used to dry anthracite coal (98% < 13.2mm, 60% between 1.7 and 9.5mm, density of ~1000kg/m) for metallurgical application, with 8 to 12% humidity down to 0.7 ±0.1%. for a production of 25 tons per hour of coal.

I would like to know what are the technologies applicable (and potential supplier), considering that I want to minimize dust loss, particule desintegration and energy consumption.

Thanks for your help.

Laurent Leclerc, ing.

Project Engineer for the Ore Processing Plant

QIT - Fer & Titane

Anthracite Drying

Posted on 5. Sep. 2007 - 01:46

A very small rotary kiln is probably the only available option as you are very specialised in your need. You can oil your dust and reduce it to zero with no degradation of the anthracite coal.

The oher possible option is blowing heated air through a pile with perforated steel tubing allowing the heated air to enter the pile.at the bottom. Oiling the coal for this option cause no problems either.

Riera Nadeu
(not verified)

Re: Anthracite Drying

Posted on 30. Jan. 2008 - 11:03

Dear Laurent,

We have a lot of expirience on drying technologies for mineral products. The most effcient system to dry is by air or nitrogen direct contact. And there aren't dust loses using a filtering media.

I attach you information about our drying system.

Don't hesitate to contact with us for extra-information, tests, etc.

Regards,

David

Attachments

rinajet ts.esp_eng1 (PDF)

Online Moisture Measurement

Posted on 19. May. 2008 - 08:49

Dear Mr. Leclerc,

Irrespective of which drying technology you use, you will surely benefit from online moisture analysis. Our Australian Principal CALLIDAN is the world leader in Online Moisture Analysis and manufactures and markets online moisture analysers that use microwave technology. Please feel free to visit our principal's site at www.callidan.com for more information. Regards

Jitendra RoyChoudhury

Business Development Manager

Salva Resources

Mob: +9198300 44856

Mail: j.roychoudhury@salvaresources.com

Web: www.callidan.com

Lf Pumping - Ultimate Dryer Of A Growing Range Of Materials

Posted on 12. Feb. 2009 - 09:04

With energy prices set to rise over the next 5 years, we know this system will be of great interest to you, either as a pre-dryer for your existing drying systems or as a standalone drying, pumping or material handling unit.

The key Points associated with this unique environmental system, compared to any known rotary, ventura, vibrating fluid bed, or static fluid bed drying systems for materials are:-

•Guaranteed energy savings, as there is no requirement for any gas, gas/oil or diesel fuels, to generate heat source to dry materials.

•Reduced carbon footprint.

•Operational advantages throughout the transportation, drying, and delivery process.

•Compact size.

•Guaranteed Low maintenance costs.

•Minimal disruption of integrating system in to current process line.

•Liquids, sludges, and aggregates up to 75mm.

•Bespoke systems can dry sand from 60% moisture content down to 0.3%.

•Bespoke systems can handle up to 500 tonnes per hour.

What materials can be dry, pump, or material handle? http://lfpumping.com/material-handling.php

We are confident that this system offers to you the very latest cutting edge technology, packed with financial and delivery savings. We look forward to discussing all your transporting, drying, crushing, and grading applications.