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Title:
COAL NOZZLE ASSEMBLY COMPRISING TWO FLOW CHANNEL
Document Type and Number:
Japanese Patent JP2019052838
Kind Code:
A
Abstract:
To provide an improved coal nozzle assembly for a coal nozzle assembly steam generator, which makes a more homogenous mixture of coal particles and primary air just before being burnt in a furnace to thereby enhance the efficiency of the furnace and reduce pollutants, for instance NOx, in flue gas.SOLUTION: A coal nozzle assembly comprises an elongated nozzle body 3 having a nozzle tip at one end thereof. The nozzle tip 5 comprises two channels 14.1, 14.2, and each channel 14.1, 14.2 has a curved or buckled flow path. The nozzle tip 5 further comprises a parting means 11 separating the channels 14.1, 14.2 from each other. The directions of flow paths of the channels 14.1, 14.2 at the ends thereof distal from the nozzle body 3 of the channels 14.1, 14.2 enclose an angle (α) between 0° and 90°.SELECTED DRAWING: Figure 1

Inventors:
KEVIN MICHAEL HOWE
JOHN CHILDS LEWIS
ALFRED JOSEF GWOSDZ
Application Number:
JP2018143045A
Publication Date:
April 04, 2019
Filing Date:
July 31, 2018
Export Citation:
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Assignee:
GENERAL ELECTRIC TECHNOLOGY GMBH
International Classes:
F23D1/00; F23C13/06
Domestic Patent References:
JPS55140009A1980-11-01
JPS61223411A1986-10-04
JPH0483535A1992-03-17
JP2003279006A2003-10-02
JPH10274404A1998-10-13
JPH11281009A1999-10-15
Foreign References:
WO2009114331A22009-09-17
WO2008038426A12008-04-03
US8955776B22015-02-17
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Takuto Tanaka