LOW NOX SWIRLING PULVERIZED COAL BURNER

WIPO Patent Application WO/2009/009945

A1

A low NOx swirling pulverized coal burner includes a secondary air box (3). A primary air duct (1) is centrally and longitudinally disposed in the secondary air box (3). Conic ring-shaped pulverized coal separators (2) are fixed in the primary air duct (1) with the respective minor diameter ends thereof directing towards the outlet end of the primary air duct (1). An inner secondary air duct (9) and an outer secondary air duct (10) are disposed outside the primary air duct (1). An inner swirler (4) is fixed in the inner secondary air duct (9). The outlet ends of the primary air duct (1), the inner secondary air duct (9) and the outer secondary air duct (10) are connected to the minor diameter ends of a conic ring-shaped primary air duct divergent outlet (11), a conic ring-shaped inner secondary air duct divergent outlet (12) and a conic ring-shaped outer secondary air duct divergent outlet (13), respectively.

LI ZHENGQI (CN)
CHEN ZHICHAO (CN)
SUN RUI (CN)
SUN SHAOZENG (CN)
WU SHAOHUA (CN)
QIN MING (CN)
LIU HUI (CN)

PCT/CN2007/070317

January 22, 2009

July 18, 2007

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HARBIN INST OF TECHNOLOGY (CN)
QIN YUKUN (CN)
LI ZHENGQI (CN)
CHEN ZHICHAO (CN)
SUN RUI (CN)
SUN SHAOZENG (CN)
WU SHAOHUA (CN)
QIN MING (CN)
LIU HUI (CN)

F23D1/02

CN1439842A	2003-09-03
CN1598403A	2005-03-23
CN88201432U	1988-11-09
CN1687639A	2005-10-26
CN2564873Y	2003-08-06
JPH0926112A	1997-01-28
US5697306A	1997-12-16

HARBIN SONGHUAJIANG PATENT TRADEMARK OFFICE (NangangHarbin, Heilongjiang 1, CN)

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