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A system and method for treatment of oil sand tailings or oil sand ore pulp

A technology of treatment system and treatment method, applied in the field of treatment system of oil sand tailings or oil sand slurry

Inactive Publication Date: 2012-09-19
顾国兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Thus, it can be seen that there are two challenges, one is to maximize the recovery of residual bitumen from oil sands tailings, and the other is to minimize and control the physical characteristics of the sludge so that it can be solidified and more economically and dispose of in an environmentally friendly manner

Method used

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  • A system and method for treatment of oil sand tailings or oil sand ore pulp
  • A system and method for treatment of oil sand tailings or oil sand ore pulp
  • A system and method for treatment of oil sand tailings or oil sand ore pulp

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Embodiment approach

[0049] As an embodiment, the oil sand tailings solidification device includes an agglomerate mixer 90, the inlet of the agglomerate mixer 90 is connected to the coarse sand outlet of the bitumen recovery device and the oil sand tailings thickening device The fine soil mud outlet is connected. The outlet of the agglomerate mixer 90 may communicate with the inlet of the belt conveyor 92 so as to transport the agglomerate mixture of coarse sand and fine earth mud discharged from the outlet of the agglomerate mixer 90 to a designated location. Of course, other conveying devices such as a belt conveyor 92 can also be arranged between the coarse sand outlet of the asphalt recovery device, the fine soil mud outlet of the oil sand tailings thickening device and the inlet of the agglomerate mixer 90 During the period, the agglomerate mixer 90 is set at a designated position, so that the coarse sand and fine soil mud are first transported to the designated position and then solidified. ...

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Abstract

The present invention provides a system and method for treatment of oil sand tailings or oil sand ore pulp, wherein the system comprises a bitumen recovery apparatus to separate oil sand tailings or oil sand ore pulp into bitumen froth, coarse sand, and fine tailings; a tailings thickening apparatus to thick the fine tailings to form fine earth mud; a tailings solidification step to solidify the fine earth mud and the coarse sand; and a bitumen froth treatment apparatus (130) to extract the bitumen from the bitumen froth; and a method for treating oil sand tailings or oil sand ore pulp is also provided. Via the above technical scheme, residual bitumen can be recovered from oil sand tailings or oil sand ore pulp, and oil sand tailings are consolidated, so that treatment can be easily performed in an economic and environmental way.

Description

technical field [0001] The invention relates to the field of oil sand treatment, in particular to a treatment system for oil sand tailings or oil sand pulp and a treatment method for oil sand tailings or oil sand pulp. Background technique [0002] Northern Alberta, Canada holds 85% of the world's oil sands deposits. According to Canadian official statistics, the reserves of Alberta's oil sands are about 175 billion barrels of crude oil, of which 20% are suitable for large-scale open pit mining. Mined oil sands typically contain 68-83% sand, 3-16% clay, 4-5% moisture and 10-11% bitumen. In mining operations, it is necessary to use about two tons of oil sands and 2-5 barrels of river water to produce a barrel of synthetic crude oil (Synthetic Crude Oil) and 1.5-2.0 barrels of aged fine soil tailings (Mature Fine Tailings), which contain 30 % solids and 70% moisture (by weight). Currently, more than 800 million cubic meters of tailings are stored in 142 square kilometers of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00B09B3/00
Inventor 顾国兴
Owner 顾国兴
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