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Title:
COAL GRINDING METHOD, METHOD OF MANUFACTURING COAL FOR COKE, AND COAL GRINDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/171765
Kind Code:
A1
Abstract:
Provided is a coal grinding method for a coal grinding apparatus 1 that grinds coal conveyed by a plurality of conveyors installed. The coal grinding apparatus 1 comprises, for each of the plurality of conveyors, at least one blending tank 10, a grinding mill 20, and a sensor 30 disposed along the conveyor. The coal grinding method includes a step for cutting out a predetermined amount of coal with the at least one blending tank 10, a step for crushing the cut out coal with the grinding mill 20, a step for detecting the grain size of crushed coal with the sensor 30, and a step for adjusting the grinding strength of each grinding mill 20 of a plurality of grinding mills 20 on the basis of the grain size of coal detected by the sensor 30 such that the grain size of coal converged after being crushed by the plurality of grinding mills 20 is a target grain size.

Inventors:
MIZUNO TAKUYO (JP)
Application Number:
PCT/JP2023/009153
Publication Date:
September 14, 2023
Filing Date:
March 09, 2023
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
B02C25/00; B02C13/30; C10B57/00
Foreign References:
JP2004016983A2004-01-22
JP2000319663A2000-11-21
JP2013185035A2013-09-19
JPH07849A1995-01-06
JPH06212169A1994-08-02
JPS61114756A1986-06-02
JPS61245854A1986-11-01
JPH02107361A1990-04-19
JP2018051425A2018-04-05
CN108940462A2018-12-07
CN112011348A2020-12-01
US6467707B12002-10-22
US20180369829A12018-12-27
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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