Title:
A separation method and a separation device of a used blast furnace gutter fire-resistant thing
Document Type and Number:
Japanese Patent JP6245201
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device capable of separating a used blast furnace trough refractory generated in an iron mill to each component.SOLUTION: A separation method of a used blast furnace trough refractory includes: the used blast furnace trough refractory is coarsely crushed (step S1); the particle size of the coarsely crushed blast furnace trough refractory is adjusted in a predetermined size range (step S2); the blast furnace trough refractory whose particle is adjusted is separated to a first high density refractory and a first low density refractory in a threshold density (step S3); successively, the first low density refractory is finely crushed (step S4); and obtained powders are magnetically selected to magnetic powders and non-magnetic powders using a magnetic force (step S5).SELECTED DRAWING: Figure 2
Inventors:
Kohei Ishida
High Yuki Ki
High Yuki Ki
Application Number:
JP2015048466A
Publication Date:
December 13, 2017
Filing Date:
March 11, 2015
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B09B5/00; B03B4/00; B03B9/06; B03C1/00; B07B4/08; B07B9/00; B09B3/00
Domestic Patent References:
| JP2003088845A | ||||
| JP2003083683A | ||||
| JP2002206867A |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara
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