EP 0837143 A1 19980422 - METHOD FOR IMPROVING CONVEYABILITY OF PULVERIZED COAL
Title (en)
METHOD FOR IMPROVING CONVEYABILITY OF PULVERIZED COAL
Title (de)
VERFAHREN ZUR VERBESSERUNG DES TRANSPORTES VON PULVERISIERTER KOHLE
Title (fr)
PROCEDE AMELIORANT LA TRANSPORTABILITE DU CHARBON PULVERISE
Publication
Application
Priority
- JP 9601875 W 19960705
- JP 16982195 A 19950705
Abstract (en)
A solid compound having a volume average particle diameter of not more than 5 mu m, for example, silicon dioxide, aluminum oxide, calcium carbonate, or silicon cabide, is adhered on a dried fine coal obtained from a raw coal having an average HGI of not less than 30 in such a manner that the value of alpha falls within the following range to improve the transportability of the fine coal: k1 . r<0.59> </= alpha </= 10 (vol %) wherein k1 = 10<-1.42> and r represents the volume average particle diameter ( mu m) of the solid compound added. As a result, the fine coal is improved in fluidity and thus can be used as an injection fuel for blast furnaces and a fine coal firing boilers. Further, it is possible to prevent hanging and changing within hoppers and clogging of piping.
IPC 1-7
IPC 8 full level
C10L 1/32 (2006.01); C10L 5/32 (2006.01); C10L 9/10 (2006.01); C21B 5/00 (2006.01); F23K 1/00 (2006.01); F23K 3/00 (2006.01)
CPC (source: EP KR)
C10L 9/10 (2013.01 - EP); C21B 5/00 (2013.01 - KR); C21B 5/003 (2013.01 - EP); F23K 1/00 (2013.01 - EP); F23K 3/00 (2013.01 - EP KR)
Citation (search report)
See references of WO 9702363A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9702363 A1 19970123; CN 1194010 A 19980923; EP 0837143 A1 19980422; JP 2986717 B2 19991206; JP H0920905 A 19970121; KR 19990028593 A 19990415
DOCDB simple family (application)
JP 9601875 W 19960705; CN 96196493 A 19960705; EP 96922245 A 19960705; JP 16982195 A 19950705; KR 19970709915 A 19971230