JPS57192494A - Coal deashing - Google Patents

Coal deashing

Info

Publication number
JPS57192494A
JPS57192494A JP7647581A JP7647581A JPS57192494A JP S57192494 A JPS57192494 A JP S57192494A JP 7647581 A JP7647581 A JP 7647581A JP 7647581 A JP7647581 A JP 7647581A JP S57192494 A JPS57192494 A JP S57192494A
Authority
JP
Japan
Prior art keywords
coal
granulated
valve
deashing
obtd
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7647581A
Other languages
Japanese (ja)
Inventor
Hikoo Matsuura
Michio Kurihara
Toshihiko Takahashi
Katsumi Muroi
Morihisa Maruko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electric Power Development Co Ltd
Hitachi Ltd
Original Assignee
Electric Power Development Co Ltd
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electric Power Development Co Ltd, Hitachi Ltd filed Critical Electric Power Development Co Ltd
Priority to JP7647581A priority Critical patent/JPS57192494A/en
Publication of JPS57192494A publication Critical patent/JPS57192494A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase deashing rate, by crushing an obtd. granulated coal followed by water washing in granulation/deashing of coal by adding a binder to an aq. slurry of a fine coal powder followed by agitation.
CONSTITUTION: A soln. 26 to be granulated obtd. by adding a small amt. of an oil as a binder to an aq. slurry of a fine coal powder is supplied to a granulator 21 and the fine coal powder is granulated with agitation and deashing (mark 22 shows a stirring blade; 23 a baffle). Then the obtd. slurry of the granulated coal is sent to a crushing vessel 31, where the granular coal is washed by supplying water via a valve 30, and the waste washing water is discharged together with ash via a valve 37. Then after the granular coal in the vessel 31 is crushed to a particle size of about 0.1mm by rotating a stirring blade 31 for crushing, the crushed granular coal is washed by supplying water via the valve 30 and discharged together with an ash deposited in the liquid via the valve 37, to obtain a deashed coal of low ash content.
COPYRIGHT: (C)1982,JPO&Japio
JP7647581A 1981-05-22 1981-05-22 Coal deashing Pending JPS57192494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7647581A JPS57192494A (en) 1981-05-22 1981-05-22 Coal deashing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7647581A JPS57192494A (en) 1981-05-22 1981-05-22 Coal deashing

Publications (1)

Publication Number Publication Date
JPS57192494A true JPS57192494A (en) 1982-11-26

Family

ID=13606204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7647581A Pending JPS57192494A (en) 1981-05-22 1981-05-22 Coal deashing

Country Status (1)

Country Link
JP (1) JPS57192494A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861187A (en) * 1981-10-09 1983-04-12 Hitachi Ltd Deashing of coal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861187A (en) * 1981-10-09 1983-04-12 Hitachi Ltd Deashing of coal

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