Slagging heat recovery unit with potassium seed recovery

Details Slagging heat recovery unit with potassium seed recovery Slagging heat recovery unit with potassium seed recovery

1984-10-22

1985-10-22

Favors, Edward G.

Liquid heaters and vaporizers

Industrial

Waste heat

122 6A, 110216, F22D 100

Patent

active

045481628

ABSTRACT:
A two part heat recovery unit receives a high temperature gas mixture (2) in the lower, refractory-lined dwell furnace (4) wherein the gas is cooled to condense out liquid inert ash material. The cooled gas mixture exits the dwell furnace (4) vertically upward through a transistion duct (18) which includes a restricted throat (28). Additional ash and potassium seed compounds condensed from the gas mixture in the convective furnace (20) either form a loose flyash which exits the convective furnace (20) with the gas mixture via the backpass (24), or collect on the walls and heat transfer surfaces (22) of the furnace (20) as a liquid which runs downward toward the throat (28) and is there reentrained by the high velocity gas stream.

REFERENCES:
patent: 4153012 (1979-05-01), Csathy et al.
patent: 4248604 (1981-02-01), Woldy et al.
patent: 4395268 (1983-07-01), Zabelka
patent: 4462339 (1984-07-01), Jahnke et al.

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