Process and means for the heat treatment of powdery or granulate

Details Process and means for the heat treatment of powdery or granulate Process and means for the heat treatment of powdery or granulate

1986-06-23

1989-10-31

Tanner, Harry B.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 33, 34 73, 34 92, F26B 504

Patent

active

048768022

ABSTRACT:
Solid, loose particulate materials are treated with vaporizable agent in a process chamber. The materials are combined with a mixture of hot gas and vapor in order to condense finely subdivided amounts of the treatment agent on the material. After a suitable time of reaction, the condensed material is partially removed from the treated material so that the pressure in the process chamber is reduced at least to the point at which the treatment agent partially evaporates, whereupon the portion which has revaporized is extracted from the process chamber. This cycle of introduction and removal of the treating agent is preferably repeated in a program-controlled operation until the desired result is achieved and a product which is suitably agglomerated is obtained. In the present process, particulate material in powder or granule form is agitated and heat-treated in a closed drum, by stirring agents and surface treated by a hot gas flow forced over or through the charge of the material and then extracted intermittently by a vacuum pump. The air is heated and vaporized so that the vapor does not condense on the charge material.

REFERENCES:
patent: 1614253 (1927-01-01), Nielsen
patent: 3262218 (1966-07-01), Cymbalisty
patent: 3874092 (1975-04-01), Huttlin
patent: 3921309 (1975-11-01), Nakayashiki
patent: 4027401 (1977-06-01), Fairbanks
patent: 4535550 (1985-08-01), Walter

Affiliated with

Also associated with

Rating

Process and means for the heat treatment of powdery or granulate 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 means for the heat treatment of powdery or granulate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and means for the heat treatment of powdery or granulate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-619300