We have experience pulverizing Sulfur, and we manufacture milling systems to accomplish this. Sulfur powder is explosive. Milling it requires considerable safety precautions.

The average cost/unit for the finished powder is dependent upon the system size, which is relative to the production capacity desired (rate) and the desired final particle size. ■

Dear Sir,

We have delivered our NEA Pendulum Roller Mill with Radial Classifier, but this is also possible with our High Impact mill.

During the grinding you can work with inert gas like Nitrogen to prevent explosion.

Several parameters need to be measured during the process.

The product is fed via a hopper to a dosing valve and with pneumatic feeding going to the mill (eventualy a cyclone) and filter.

The price is depending of the expected troughput and fineness.

Best Regards,

Jackie Meul

Phone: +49 (0) 2451-481-224

Fax: +49 (0) 2451-481-200

jackie.meul@neuman-esser.de

NEUMAN & ESSER GmbH

Mahl- und Sichtsysteme

Grinding and Classifying Systems

Werkstrasse

52531 Uebach-Palenberg

Germany

Website: www.neuman-esser.de ■

Dear Sir:

Alstom Power, Inc. Raymond Operations is a leading supplier of engineered products, services and technologies that address size reduction, classification, and thermal processing applications for a wide variety of industries worldwide.

The company provides a range of services from the initial concept and development of the equipment, through testing, design, manufacture, start-up and commissioning. Raymond equipment is supported by their technical staff, pilot plant testing facility, OEM replacement parts, and aftermarket products and services.

In order answer the questions on your post, please complete the attached questionaire and returned to

href="mailto:mark.r.hamrick@power.alstom.com">mark.r.hamrick@power.alstom.com or via fax at 630.393.1001. If you have any questions you can also contact me at 630.836.7480.

You can visit us at

href="http://www.raymondpulverizers.com" target="blank">www.raymondpulverizers.com

Mark Hamrick

Director Pulverzing Products

Alstom Power, Raymond Operations

Attachments

raymond pulverizing questionnaire (PDF)

■

Some important information’s are missing.

The start size, the quantity and the desired final size is important to propose a optimum machine.

If only big lumps need to be broken to mm size, a jaw crusher like the PULVERISETTE 1 might be suitable.

For smaller amounts, a planetary ball mill will be able to grind into µm range. By grinding in suspension, a grinding down to d50 < 5µm was done with our Planetary Mono Mill PULVERISETTE 6.

A test with our Planetary Micro Mill PULVERISETTE 7 premium line for grinding into nano range (up to ~20g) was not tested so far.

Best regards,

The Fritsch Team

Website: www.fritsch.de ■

One further information,

if you follow our link – we are offering free grinding trials, sieve-analysis or particle size analysis with our laser particle sizer's:

http://www.fritsch.de/en/sample-prep...mple-analysis/

Feel free to fill the questionnaire and send a sample to our application laboratory.

With best regards,

The Fritsch Team. ■