发明公开
EP2864452A4 DISPERSION AND CONDITIONING TECHNIQUES FOR THICK FINE TAILINGS DEWATERING OPERATIONS
失效 - 权利终止

基本信息:
- 专利标题: DISPERSION AND CONDITIONING TECHNIQUES FOR THICK FINE TAILINGS DEWATERING OPERATIONS
- 专利标题(中):分散和调理方法的排放作业进行粗略和精密切割
- 申请号:EP13807279 申请日:2013-06-21
- 公开(公告)号:EP2864452A4 公开(公告)日:2016-01-06
- 发明人: BUGG TREVOR , SANCHEZ ANA , REVINGTON ADRIAN , MACAULAY JAMES PATRICK
- 申请人: SUNCOR ENERGY INC
- 专利权人: SUNCOR ENERGY INC
- 当前专利权人: SUNCOR ENERGY INC
- 优先权: US201261662709 2012-06-21
- 主分类号: C10G53/08
- IPC分类号: C10G53/08 ; B01D12/00 ; B03D3/06 ; C02F1/52 ; C02F1/56 ; C02F103/10 ; C10G7/04 ; C10G33/04 ; F26B5/00
摘要:
Techniques are described that relate to enhancing flocculation and dewatering of thick fine tailings, for example by reducing process oscillations. One example method includes dispersing a flocculant into thick fine tailings having a turbulent flow regime to produce turbulent flocculating tailings; subjecting the turbulent flocculating tailings to shear to build up flocs and increase yield stress, to produce a flocculated material having a non-turbulent flow regime; and shear conditioning the flocculated material to decrease the yield stress and produce conditioned flocculated tailings within a water release zone; and dewatering the conditioned flocculated tailings, for example by employing sub-aerial deposition. The thick fine tailings may have a Bingham Reynolds Number of at least 40,000 upon flocculant addition. Inhibiting process oscillations may include providing turbulent tailings feed, configuring a downstream pipeline assembly to reduce backpressure fluctuations and/or reducing air content in the flocculant solution, for example.