发明授权
- 专利标题: Depositing and farming methods for drying oil sand mature fine tailings
- 专利标题(中): 沉积和养殖方法干燥油砂成熟细尾矿
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申请号: US13505228申请日: 2009-10-30
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公开(公告)号: US09068776B2公开(公告)日: 2015-06-30
- 发明人: Trevor Bugg , Jamie Eastwood , Adrian Peter Revington , Marvin Harvey Weiss , Patrick Sean Wells , Thomas Charles Hann , Stephen Joseph Young , Hugues Robert O'Neill
- 申请人: Trevor Bugg , Jamie Eastwood , Adrian Peter Revington , Marvin Harvey Weiss , Patrick Sean Wells , Thomas Charles Hann , Stephen Joseph Young , Hugues Robert O'Neill
- 申请人地址: CA Calgary
- 专利权人: SUNCOR ENERGY INC.
- 当前专利权人: SUNCOR ENERGY INC.
- 当前专利权人地址: CA Calgary
- 代理机构: Baker & Hostetler LLP
- 国际申请: PCT/CA2009/001578 WO 20091030
- 国际公布: WO2011/050440 WO 20110505
- 主分类号: F26B11/02
- IPC分类号: F26B11/02 ; F26B7/00 ; F26B5/00 ; B09C1/08
摘要:
Methods for drying oil sand fine tailings treated to comprise flocculated fine tailings, by deposition and farming techniques, are provided. A deposition cell is provided with a sloped bottom surface and the flocculated fine tailings are deposited to undergo channelless advancement in the cell while allowing drainage of release water. When the deposit is uneven, the deposit may be plowed while wet for spreading and ensuring water release conditioning is imparted thereto, while avoiding over-shearing, and maintaining sufficient shear strength to allow standing. Once a dried upper crust forms, the deposit may be harrowed to break up the crust, expose wet regions there-beneath and create furrows in the standing deposit. The methods improve the dewatering and drying of mature fine tailings in oil sands.
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