PULVERIZED COAL/BIOMASS MIXED-COMBUSTION BURNER AND FUEL COMBUSTION METHOD

Title:

PULVERIZED COAL/BIOMASS MIXED-COMBUSTION BURNER AND FUEL COMBUSTION METHOD

Document Type and Number:

WIPO Patent Application WO/2013/141311

Kind Code:

A1

Abstract:

Provided is a pulverized coal/biomass mixed-combustion burner capable of combusting large volumes of biomass fuel as an auxiliary fuel, and capable of combusting only pulverized coal if there is insufficient biomass fuel. The pulverized coal/biomass mixed-combustion burner (1) comprises: a biomass fuel jet nozzle (20) that follows the axis of the pulverized coal/biomass mixed-combustion burner (1); a pulverized coal fuel jet nozzle (30) that surrounds the biomass fuel jet nozzle; a secondary air nozzle (40) that surrounds the pulverized coal fuel jet nozzle; and a tertiary air nozzle (50) that surrounds the secondary air jet nozzle. The pulverized coal/biomass mixed-combustion burner is configured so as to jet a biomass fuel flow to the inner side of a pulverized coal fuel flame having good ignition and flame stability and formed inside a furnace.

Inventors:

TANIGUCHI KOJI (JP)
KATO ATSUNORI (JP)
YABARA SUGURU (JP)
TANABE YUTAKA (JP)

Application Number:

PCT/JP2013/058116

Publication Date:

September 26, 2013

Filing Date:

March 21, 2013

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KAWASAKI HEAVY IND LTD (JP)

International Classes:

F23C1/00; F23D1/02; F23D17/00

Foreign References:

JP2005291524A	2005-10-20
JPH0926112A	1997-01-28
JPS56119406A	1981-09-19
JP2010261707A	2010-11-18
JP2005140480A	2005-06-02
JP2007101083A	2007-04-19
JP2003222310A	2003-08-08
JP2007333232A	2007-12-27
JPH0420702A	1992-01-24
JP2005291534A	2005-10-20
JP2005291524A	2005-10-20
JPH0926112A	1997-01-28

Other References: