矿冶工程
礦冶工程
광야공정
2014年
5期
66-69
,共4页
石煤钒矿%选碳%热值%浮选
石煤釩礦%選碳%熱值%浮選
석매범광%선탄%열치%부선
vanadium-containing stone coal mine%carbon beneficiation%calorific value%flotation
针对方山口石煤钒矿，通过一次粗选一次扫选一次精选闭路浮选脱碳试验，在总钒损失5．82％的条件下，可将石煤中V2 O5品位由0．95％提高到1．09％，脱碳后的石煤样品热值为239 kJ／kg，远低于未脱碳前的石煤热值2404 kJ／kg，有利于后续工艺处理；同时获得的高品位碳精矿，热值达到5458 kJ／kg，可作为燃料使用。
針對方山口石煤釩礦，通過一次粗選一次掃選一次精選閉路浮選脫碳試驗，在總釩損失5．82％的條件下，可將石煤中V2 O5品位由0．95％提高到1．09％，脫碳後的石煤樣品熱值為239 kJ／kg，遠低于未脫碳前的石煤熱值2404 kJ／kg，有利于後續工藝處理；同時穫得的高品位碳精礦，熱值達到5458 kJ／kg，可作為燃料使用。
침대방산구석매범광，통과일차조선일차소선일차정선폐로부선탈탄시험，재총범손실5．82％적조건하，가장석매중V2 O5품위유0．95％제고도1．09％，탈탄후적석매양품열치위239 kJ／kg，원저우미탈탄전적석매열치2404 kJ／kg，유리우후속공예처리；동시획득적고품위탄정광，열치체도5458 kJ／kg，가작위연료사용。
A closed?circuit flotation flowsheet with one roughing, one scavenging and one cleaning was adopted for decarbonizing Fangshankou vanadium?bearing stone coal ore. With a total vanadium loss of 5.82%, the V2 O5 content was increased from 0.95% to 1.09%, and the calorific value for the decarbonized stone coal was reduced significantly from 2 404 kJ/kg to 239 kJ/kg, which are beneficial for the subsequent process. Furthermore, the carbon concentrate simultaneously prepared with a caloric value of 5 458 kJ/kg, can be used as fuel.
