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Patent Searching and Data


Title:
A slag removal unit and a slag removing method
Document Type and Number:
Japanese Patent JP6057642
Kind Code:
B2
Abstract:
Provided is a slag removal device for a blast furnace, capable of readily and reliably achieving slag removal using a simple device configuration, even when pulverized coal is used that has not had the softening temperature thereof adjusted, and capable of reducing as much as possible the risk of pipe damage, etc. The slag removal device for a blow pipe is provided in a blow pipe that injects auxiliary fuel pulverized coal together with hot air from a tuyere for a blast furnace main body that produces pig iron from iron ore. A jet nozzle that injects solids having a higher fusion point than the temperature in the vicinity of the tuyere and having a particle diameter greater than that of the pulverized coal, into pulverized coal that flows inside the blow pipe and into the hot air, is provided in the slag removal device.

Inventors:
Masakazu Sakaguchi
Hamada Tsutomu
Takeshi Okada
Setsuo Omoto
Keiichi Nakagawa
Application Number:
JP2012207275A
Publication Date:
January 11, 2017
Filing Date:
September 20, 2012
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
C21B7/00; C21B5/00; C21B7/16; F27D3/15; F27D25/00
Domestic Patent References:
JP6192714A
JP64028312A
JP62161905A
JP11050113A
JP2001342508A
JP8100208A
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda