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Title:
PULVERIZED COAL BIOMASS DUAL FUEL BURNER
Document Type and Number:
Japanese Patent JP2013194994
Kind Code:
A
Abstract:

To provide a pulverized coal biomass duel fuel burner which can burn a large amount of biomass fuel as an auxiliary fuel and when the biomass fuel is insufficient, can burn pulverized coal only.

A pulverized coal biomass duel fuel burner 1 includes a biomass fuel jet nozzle 20 disposed along the axis of the burner 1, a fuel jet nozzle 30 formed by opening the tubular body of the biomass fuel jet nozzle 20 in the middle thereof, a secondary air nozzle 40 surrounding the fuel jet nozzle 30, and a tertiary air nozzle 50 surrounding the secondary air nozzle 40. A pulverized coal component in a flow of a mixture of a pulverized coal fuel and a biomass fuel is distributed thickly along an outer peripheral wall, while a biomass component is distributed inside the pulverized coal component. As a result, a flame of the pulverized coal fuel having a superior ignition/flame stability is generated in a furnace, while a flow of the biomass fuel is jet to the inside of the flame.


Inventors:
Taniguchi, Koji
Kato, Atsutoku
Yahara, Shun
Tanabe, Yutaka
Application Number:
JP2012000063031
Publication Date:
September 30, 2013
Filing Date:
March 21, 2012
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F23D17/00; F23C1/00
Domestic Patent References:
JP2005291524A2005-10-20
JPH0926112A1997-01-28
JPS56119406A1981-09-19
JP2010261707A2010-11-18
JP2005140480A2005-06-02
JP2010181145A2010-08-19
JP2003222310A2003-08-08
JP2002243108A2002-08-28
Attorney, Agent or Firm:
関 正治
柳瀬 睦肇



 
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