FIELD: solid fuel production. SUBSTANCE: invention relates to working fine-dispersion wastes from coal industry into refined fuel of household and industrial destination. In a method consisting in mixing a blend of coal sludge and coal dust with 4-5 wt % of dry lignosulfonate, briquetting obtained mix and thermally treating briquets, blend is used with moisture content 8-14% , coal sludge -0.5 mm fraction content 50-90 wt %, and coal dust -6 mm fraction content 5-46 wt %, whereas thermal treatment of briquets is carried out at 160-200 C for 1-1.5 h. EFFECT: up-graded low-grade fuel materials. 1 dwg, 4 tbl
Title | Year | Author | Number |
---|---|---|---|
FUEL BRIQUETTES' FABRICATION METHOD | 1999 |
|
RU2149890C1 |
METHOD OF BRIQUETTING WET FINE GRAINS OF COAL AND SLUDGES | 2007 |
|
RU2330062C1 |
METHOD OF COKE FINE GRADES BRIQUETTING | 2007 |
|
RU2325433C1 |
METHOD OF PRODUCTION OF CARBON-CONTAINING BRIQUETTES | 1996 |
|
RU2101328C1 |
METHOD OF PRODUCTION OF COAL BRICKS | 2002 |
|
RU2227803C1 |
METHOD OF PRODUCTION OF SOLID FUEL BRIQUETTES | 2004 |
|
RU2254360C1 |
COKE FUEL BRIQUETTE | 2016 |
|
RU2653509C9 |
METHOD OF FABRICATING BRIQUETS | 1996 |
|
RU2105043C1 |
BINDING AGENT FOR FUEL BRIQUETTES | 1999 |
|
RU2146276C1 |
FUEL BRIQUETTE FABRICATION PROCESS | 2006 |
|
RU2298028C1 |
Authors
Dates
1997-05-10—Published
1994-07-12—Filed