Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1990-10-01
1992-09-29
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34115, 431353, F26B 1300
Patent
active
051505355
ABSTRACT:
Dryers with gas heating present a special problem, namely the uniform mixing of the combustion gases produced by a gas burner with circulated treatment air. In order to attain this objective, a special structure of an air mixer is provided, consisting of three series-arranged sections of air directing plates. In each section, of a different structure, the treatment air is in each case rerouted or deflected toward the middle of the treatment duct and mixed during this process with the air currents coming from the sides. It is advantageous to generate vortices in each case, first by means of a funnel-shaped air mixing section and then by means of sections with mutually parallel-arranged plates which are, on the one hand, disposed perpendicularly and, on the other hand, transversely thereto.
REFERENCES:
patent: 3796209 (1974-03-01), Luft
patent: 3799734 (1974-03-01), Bailey
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