Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†

The wet grinding characteristics of CWM (Coal Water Mixture) at high concentrations was investigated by conducting batch preparation tests using a laboratory-scale ball mill. Although the grindability became worse with the increase in the slurry...

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Main Authors: Hayami Itoh, Shuhei Tatsumi, Yoshihiro Kajibata, Shoichi Takao, Hironori Ozaki, Tadashi Katahata
Format: Article
Language:English
Published: Hosokawa Powder Technology Foundation 2014-06-01
Series:KONA Powder and Particle Journal
Online Access:https://www.jstage.jst.go.jp/article/kona/7/0/7_1989009/_pdf/-char/en
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author Hayami Itoh
Shuhei Tatsumi
Yoshihiro Kajibata
Shoichi Takao
Hironori Ozaki
Tadashi Katahata
author_facet Hayami Itoh
Shuhei Tatsumi
Yoshihiro Kajibata
Shoichi Takao
Hironori Ozaki
Tadashi Katahata
author_sort Hayami Itoh
collection DOAJ
description The wet grinding characteristics of CWM (Coal Water Mixture) at high concentrations was investigated by conducting batch preparation tests using a laboratory-scale ball mill. Although the grindability became worse with the increase in the slurry concentration, it was found possible to prepare CWM of 65∼75% by use of the proper dispersant. The improvement of grindability was caused by the improved movement of balls owing to the decrease in the apparent viscosity at low shear rates. The grindability greatly changed with the coal type. The difference of grindability among coal types was mainly due to the difference in the flocculation force.† This report was originally printed in KAGAKU KOGAKU RONBUNSHU, 14(2), 155-160 (1988) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Chemical Engineers, Japan.
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spelling doaj.art-796dbb8b6a0e40ffb9b39ca74b3701b42022-12-21T22:42:54ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-06-0170434910.14356/kona.1989009konaCharacteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†Hayami Itoh0Shuhei Tatsumi1Yoshihiro Kajibata2Shoichi Takao3Hironori Ozaki4Tadashi Katahata5Technical Institute, Kawasaki Heavy Industries, Ltd.Technical Institute, Kawasaki Heavy Industries, Ltd.Technical Institute, Kawasaki Heavy Industries, Ltd.Technical Institute, Kawasaki Heavy Industries, Ltd.Crushing Plant Manufacturing Div., Kawasaki Heavy Industries, Ltd.Crushing Plant Manufacturing Div., Kawasaki Heavy Industries, Ltd.The wet grinding characteristics of CWM (Coal Water Mixture) at high concentrations was investigated by conducting batch preparation tests using a laboratory-scale ball mill. Although the grindability became worse with the increase in the slurry concentration, it was found possible to prepare CWM of 65∼75% by use of the proper dispersant. The improvement of grindability was caused by the improved movement of balls owing to the decrease in the apparent viscosity at low shear rates. The grindability greatly changed with the coal type. The difference of grindability among coal types was mainly due to the difference in the flocculation force.† This report was originally printed in KAGAKU KOGAKU RONBUNSHU, 14(2), 155-160 (1988) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Chemical Engineers, Japan.https://www.jstage.jst.go.jp/article/kona/7/0/7_1989009/_pdf/-char/en
spellingShingle Hayami Itoh
Shuhei Tatsumi
Yoshihiro Kajibata
Shoichi Takao
Hironori Ozaki
Tadashi Katahata
Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
KONA Powder and Particle Journal
title Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
title_full Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
title_fullStr Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
title_full_unstemmed Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
title_short Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
title_sort characteristics of wet grinding of highly loaded coal water slurry translated †
url https://www.jstage.jst.go.jp/article/kona/7/0/7_1989009/_pdf/-char/en
work_keys_str_mv AT hayamiitoh characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated
AT shuheitatsumi characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated
AT yoshihirokajibata characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated
AT shoichitakao characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated
AT hironoriozaki characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated
AT tadashikatahata characteristicsofwetgrindingofhighlyloadedcoalwaterslurrytranslated