SOLID FUEL BURNER

WIPO Patent Application WO/2020/234965

A1

Provided is a solid fuel burner such that it is possible to reduce unburned content and CO while suppressing generation of NOx. This solid fuel burner comprises: a solid fuel nozzle (10) that ejects a fluid mixture of solid fuel and primary air; a secondary air nozzle (11) that ejects secondary air; a tertiary air nozzle (12) that ejects tertiary air; a secondary air guide member (34) that guides the flow of secondary air outward in the radial direction; and one or more tertiary air guide members (20) that guide the flow of tertiary air outward in the radial direction. This solid fuel burner is equipped with a contraction flow formation member (60) that narrows the cross-sectional area of a secondary air flow path. The outer diameter (L2) of the secondary air guide member is formed smaller than the inner diameter (L1) of the outer peripheral wall of the secondary air nozzle. The leading end position (X2) of the tertiary air guide member is closer to the furnace side than the leading end position (X1) of the secondary air guide member. The solid fuel nozzle, the secondary air guide member, and the contraction flow formation member are configured so as to be integrally withdrawable from a burner throat.

KIYAMA KENJI (JP)
OCHI KENICHI (JP)
MITO SHOHEI (JP)
KITAKAZE KOSUKE (JP)
MINE TOSHIHIKO (JP)

PCT/JP2019/019911

November 26, 2020

May 20, 2019

Click for automatic bibliography generation  

MITSUBISHI HITACHI POWER SYS (JP)

F23C99/00; F23D1/00

WO2014027609A1

2014-02-20

JP2018028418A	2018-02-22
JPH1144411A	1999-02-16
JPH10274405A	1998-10-13
JP2006162208A	2006-06-22
JPS60226609A	1985-11-11
JPS60202204A	1985-10-12
JP2000130710A	2000-05-12

THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)

View/Download PDF      PDF Help

Previous Patent: POWER SUPPLY DEVICE

Next Patent: ADJUSTABLE RAIL BRACKET AND ELEVATOR DEVICE COMPRISING SAME