Burner for burning powdered fuel
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United States of America Patent
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-
Jul 29, 1997
Issued Date -
N/A
app pub date -
Jan 6, 1995
filing date -
Jul 30, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A burner for burning powdered fuel in air. The air is divided into concentric annular currents. A tube (6) conveys primary air or gas. The tube is surrounded by another tube (12). The second tube conveys secondary air. The exit of the primary-air tube inside the secondary-air tube is surrounded by an annular baffle (26). The baffle is open at each end, has secondary air flowing through it, and extends axially beyond the primary-air tube as much as 25% of the tube's outside diameter. The thickness of the gap (25) between the primary-air tube and the baffle is at least 1.5% of that diameter.
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