Induced stack draft apparatus

Details Induced stack draft apparatus Induced stack draft apparatus

1983-10-31

1985-04-23

Favors, Edward G.

Furnaces

Draft regulators

Stack

98 78, F23L 1716, F23N 300

Patent

active

045122644

ABSTRACT:
An apparatus to induce drafts in combustion chamber stacks can operate at temperatures from 1400.degree. to 2600.degree. while being fabricated from mild steel with refractory lining. The induced draft apparatus includes an exhaust stack connected to a combustion chamber and has an annular plenum formed around the base of the stack with a narrowed annular outlet from the plenum into the stack. An air blower is connected to the annular plenum for directing air under pressure thereinto and into the stack at a predetermined position. An annular refractory surface is formed on the inside of the plenum wall in the stack and the stack is similarly lined with a refractory material.

REFERENCES:
patent: 2722372 (1955-11-01), Edwards
patent: 2979322 (1961-04-01), Dailey, Jr.
patent: 3134345 (1964-05-01), King

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