- 专利标题: Recovering mature fine tailings from oil sands tailings ponds
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申请号: US14832632申请日: 2015-08-21
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公开(公告)号: US09782700B2公开(公告)日: 2017-10-10
- 发明人: Rade Svorcan
- 申请人: Technika Engineering Ltd.
- 申请人地址: CA Calgary
- 专利权人: Technika Engineering Ltd.
- 当前专利权人: Technika Engineering Ltd.
- 当前专利权人地址: CA Calgary
- 代理机构: Seed IP Law Group LLP
- 主分类号: B01D21/24
- IPC分类号: B01D21/24 ; C10G1/04 ; E02F3/88 ; E02F7/00 ; E02B15/08 ; B03B9/02 ; B01D21/02 ; E02F7/06 ; E02F3/90 ; E02F7/10 ; C10G31/00 ; C10G33/06 ; C02F1/00 ; B01D21/00 ; C02F103/10 ; C02F101/32 ; C02F103/36
摘要:
The present disclosure relates to systems and methods for recovering mature fine tailings (MFT) from oil sands tailings ponds. Some examples include a hollow, fully enclosed around its perimeter, ideally of cylindrical form, open bottom structure (a hollow conduit), of predetermined geometry, which is placed at the pond surface. The hollow conduit can penetrate MFT deposits to or below a level at which MFT of required density is located. A width or diameter of the hollow conduit can be determined with respect to the MFT inflow velocity and the corresponding shear rate, so as to enable MFT flow into the hollow conduit at a rate matching a rate at which the MFT is removed from the pond (e.g., a recovery rate). An MFT fill level inside the hollow conduit can be kept constant and equal to a required fill level throughout MFT recovery operations. MFT can enter the hollow conduit during MFT recovery operations solely under action of hydraulic head pressure. MFT can be transferred from within the hollow conduit utilizing a mechanical device such as a pump or a siphon, for transfer to shore based facilities and further processing.
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