Oil-fired burner, solid fuel-fired burner unit, and solid fuel-fired boiler
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 11, 2017
Grant Date -
Dec 4, 2014
app pub date -
Oct 31, 2012
filing date -
Nov 16, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An oil-fired burner (30A) for warming, disposed adjacent to the outer periphery of a pulverized coal burner which inputs pulverized coal and air into a furnace, includes: an oil gun (32) for inputting an oil fuel disposed at the center of an outlet opening of a nozzle main body (31) substantially rectangular in cross-section; and a secondary air input port (40) disposed so as to surround the outer periphery of the oil gun (32), wherein the secondary air input port (40) is constituted of: a central arc section (41) substantially similar in shape to a circular diffuser (34) mounted on the leading end side of the oil gun (32); and rectangular sections (42L, 42R) provided continuously from both sides of the central arc section (41) and narrowed in face-to-face dimension in the direction of the adjacent pulverized coal burners so as to increase the distance from them.
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