Method and apparatus for conditioning fibrous materials

Details Method and apparatus for conditioning fibrous materials Method and apparatus for conditioning fibrous materials

1987-06-01

1989-03-21

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34137, F26B 310, F26B 306

Patent

active

048131547

ABSTRACT:
An apparatus for cooling and conditioning chopped, fibrous materials such as chopped alfalfa, wood chips or the like includes a rotatable drum having helical flights for advancing materials as well as a series of radial flights that selectively retard portions of the fibrous materials. A spray apparatus located within upstream regions of the drum directs a spray of water and additives such as binders and preservatives toward the materials, while an induced stream of air flowing through the drum in countercurrent relationship to the advancement of materials causes cooling of the latter by conduction as well as evaporation. Relatively finer and therefore drier portions of the fibrous materials are directed rearwardly by the countercurrent stream of air back toward the spray apparatus to thereby increase the moisture content of the same and equilibrate with regard to the moisture content of remaining portions of the fibrous materials. The drum rotates slowly to mix and condition the materials and also functions as an accumulator in case upstream or downstream processes are interrupted.

REFERENCES:
patent: 1173188 (1916-02-01), Hetherington
patent: 3021202 (1962-02-01), Peirce et al.
patent: 3943637 (1976-03-01), Hanser
patent: 3948277 (1976-04-01), Wochnowski et al.
patent: 4346523 (1982-08-01), Ronning

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