Process and device for conditioning bulk material

Details Process and device for conditioning bulk material Process and device for conditioning bulk material

1988-10-21

1990-11-20

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Treated material vibrating type

34178, F26B 900

Patent

active

049708066

ABSTRACT:
Bulk material containing vaporizable ingredients, such as lignite, hard coal, peat, waste wood, clarifier sludge, waste sludge, contaminated earth, catalysts, zeolites and filter cake, is conditioned by means of a vibrating plate conveyor divided into a heating section and a drying section, using an indirect heat exchange method. The bulk material is heated in an enclosed heating section while withdrawing the vapor from this section. In the downstream enclosed drying section, the vaporizable fractions contained in the bulk material are further reduced with the aid of heat supplied indirectly, the vapor being withdrawn. The bulk material is separated several times into coarse and fine fractions utilizing at least one slotted grid, the fines being immediately recycled and remixed with the coarse fractions which have a higher water content. The bulk material is mixed several times while being heated in the drying section before discharge. Substantial improvement in the conditioning of bulk material having a wide grain size distribution is achieved by adding fine-grain auxiliary material to the bulk material containing vaporizable fractions in a very early stage of the process.

REFERENCES:
patent: 3710453 (1973-01-01), Whelpley
patent: 3742614 (1973-07-01), Bettermann et al.
patent: 4392301 (1983-06-01), Hohman et al.
patent: 4785554 (1988-11-01), Hederer et al.

Affiliated with

Also associated with

Rating

Process and device for conditioning bulk material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and device for conditioning bulk material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for conditioning bulk material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-446365