Dear Serge:

If you are interested in looking at Fluid Bed Drying technology, Ventilex could potentially dry your product at lower temperatures, with less equipment footprint, and lower energy costs. Also would give you a much more even and uniform moisture output with our plug flow design.

We do not manufacture Rotary Drum dryers, but if you are interested in a potentially better solution let me know.

Bill

VENTILEX USA INC. ■

Aeroglide does supply rotary driers for sawdust applications and can also supply biomass burners system for the heat source.

Please contact myself at 919 851 200 or Conrad Chmielewski at 919 270 5625 ■

Serge,

Callidan instruments manufactures online moisture anlayser for real time control of dryers. Have you considered such technology. Fee free to visit our web site at www.callidan.com and to contact me directly at benf@callidan.com ■

Dear Sir,

we are sorry we cannot help you since our equipments are suitable for vacuum drying of pharma products.

We would be glad to submit to your attention more information and tailored quotation regarding vacuum pumps, which are suitable for “dirt vacuum”.

For further information you may visit our website: www.italvacuum.com.

Best regards.

ITALVACUUM SRL

Sales dept. ■

Dear forum members, we, at PRAXIA, have the same request of Mr. Necser to find which could be the best way to dry eucalyptus bark. The purpose is to use the biomass as the secondary fuel in a cement kiln, which is already burning petroleum coke. We should be able to dry 20t/h@55% moisture (WB) to final moisture of 10%. The bark particles will be blown in the burner, so final particle sixe to be less than 1mm diameter, less than 8mm long.

Bark size (input for dryer) will depend on dryer type. We do not want to use a rotary kiln because of two reasons:

1) Very high investment required

2) Too large footprint.

Dryer complexity increases with particle size increase.

Milling energy requirements increase dramatically with moisture content.

So, there will always be a solution of compromise between these two processes

We have thought in two alternatives:

a) Rod mill grinder which combines both milling and drying processes. Test results are very promising.

b) Grain (seeds) vertical dryer (yet to be tested)

We have disregarded a pneumatic conveying dryer (Flash dryer) because of the particle size required, too much energy and complexity to reach particles < 1mm diameter prior to drying.

Any help any of you can gently supply us with will be highly appreciated. We have attached a photo of how the raw material looks like (left side material in the photo).

Engs. Walter Lusiardo / Pedro Garra

+598 2 9085100 ■