Title:
Burner
Document Type and Number:
Japanese Patent JP6011073
Kind Code:
B2
Abstract:
A burner comprises a nozzle main body (7) which is installed along a central axis of a throat (4) provided on a furnace wall (3) and comprises an inner nozzle (11) in which an auxiliary combustion air (24) flows and an outer nozzle (9) which is provided on an outer side and concentrically with the inner nozzle and in which a pulverized coal mixed flow (18) obtained by mixing a carrying medium with a pulverized coal flow, a wind box (5) for accommodating the nozzle main body, a secondary air regulator (8) accommodated in the wind box and provided at a tip portion of the nozzle main body, an auxiliary combustion air intake pipe (23) for introducing a combustion air as an auxiliary combustion air (22) into the inner nozzle from the wind box, a pulverized coal flow supply pipe (16) for introducing a pulverized coal mixed flow into the outer nozzle, and an oxygen-containing gas supply pipe (17) for supplying an oxygen-containing gas (19) to the pulverized coal mixed flow and raising the oxygen concentration in the pulverized coal mixed flow.
Inventors:
Masato Tamura
Thread count Ryunosuke
Thread count Ryunosuke
Application Number:
JP2012148471A
Publication Date:
October 19, 2016
Filing Date:
July 02, 2012
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
F23L7/00; F23D1/00; F23K3/02
Domestic Patent References:
| JP2008196741A | ||||
| JP2005140480A | ||||
| JP2002340306A | ||||
| JP9178116A | ||||
| JP8110014A | ||||
| JP2009264731A | ||||
| JP7293823A | ||||
| JP2011106726A |
Foreign References:
| WO2002012791A1 |
Attorney, Agent or Firm:
Shoji Miyoshi