Title:
Blast furnace equipment
Document Type and Number:
Japanese Patent JP6015916
Kind Code:
B2
Abstract:
This blast furnace installation is configured such that when pulverized coal, which has been prepared by pulverizing high-grade coal, is pneumatically conveyed into a supply tank by a combustion gas, pulverized coal, which has been prepared by drying, dry-distilling, cooling, and pulverizing low-grade coal with a drying device, a dry-distillation device, a cooling device, and a pulverization device, is supplied from a storage tank by a feeder and pneumatically conveyed into the supply tank by a nitrogen gas, and then the pulverized coals in the supply tank are pneumatically conveyed from a supply line into an injection lance by a carrier gas, a control unit controls the feeders so as to gradually increase the supply amount of pulverized coal while maintaining the total amount of supply amount of pulverized coal and supply amount of pulverized coal to be supplied to the tuyere at a prescribed amount.
Inventors:
Keiichi Nakagawa
Setsuo Omoto
Masakazu Sakaguchi
Hamada Tsutomu
Takeshi Okada
Setsuo Omoto
Masakazu Sakaguchi
Hamada Tsutomu
Takeshi Okada
Application Number:
JP2012206777A
Publication Date:
October 26, 2016
Filing Date:
September 20, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
C21B7/00
Domestic Patent References:
| JP2011099011A | ||||
| JP2012162604A |
Attorney, Agent or Firm:
Toshiro Mitsuishi
Mitsuishi Shunpei
Yasuyuki Tanaka
Hiroshi Matsumoto
Tetsuzo Yamada
Mitsuishi Shunpei
Yasuyuki Tanaka
Hiroshi Matsumoto
Tetsuzo Yamada