Title:
SOLID FUEL BURNER
Document Type and Number:
Japanese Patent JP2016133224
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve stability characteristics on ignitability and burning quality through high concentration of solid fuel and reduction of energy of fuel particles and speed thereof.SOLUTION: This invention relates to a solid fuel burner constituted in such a way that combustion air nozzles 4 and 5 are provided at an outer periphery of a cylindrical fuel nozzle 10 for injecting mixed fluid 3 of fine powdered coal and transfer gas thereof; there are provided a venturi 8 located at an inner wall side of the fuel nozzle 10 and metering once a transfer flow passage for the mixture gas 3 composed of fine powdered coal and transfer gas thereof in the fuel nozzle 10 toward a central axis direction, a condenser 9 for changing a flow of the mixed gas 3 outward placed at a central axis of the fuel nozzle 10 at a downstream side of the venturi 8 and a distributor 11 at the downstream side of the condenser 9 for dividing the flow passage of the fuel nozzle 10 to an outer peripheral side and an inner peripheral side; a transfer flow passage 12 between the fuel nozzle 10 and the distributor 11 is divided into at least two or more in a circumferential direction of the fuel nozzle 10; and there is provided a hindrance object 14 to cause a length in a circumferential direction of the divided flow passage 12 to be reduced as it is advanced toward the downstream side.SELECTED DRAWING: Figure 1
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Inventors:
ONISHI YASUHITO
SHIMOGOORI MIKI
MINE SATOHIKO
SHIMOGOORI MIKI
MINE SATOHIKO
Application Number:
JP2015005914A
Publication Date:
July 25, 2016
Filing Date:
January 15, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS
International Classes:
F23D1/00; F23K3/02
Domestic Patent References:
| JPH11281010A | 1999-10-15 | |||
| JPH10220707A | 1998-08-21 | |||
| JPH09159109A | 1997-06-20 | |||
| JPS62142610U | 1987-09-09 | |||
| JP2012255600A | 2012-12-27 | |||
| JPH03110308A | 1991-05-10 | |||
| JPH09329304A | 1997-12-22 |
Foreign References:
| US5799594A | 1998-09-01 |
Attorney, Agent or Firm:
Kamei Takeyuki
Takayoshi Matsunaga
Iizuka Muko
Go Sasaki
Takayoshi Matsunaga
Iizuka Muko
Go Sasaki
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