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System for obtaining asphalt and building sand from oil sand

A bitumen and oil sand technology, applied in the system field of obtaining bitumen and construction sand, can solve the problems of difficult tailings treatment, environmental pollution, large water consumption, etc., and achieve the effect of improving resource utilization efficiency and comprehensive utilization efficiency

Pending Publication Date: 2018-11-06
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is simple to operate, but has the following disadvantages and technical bottlenecks: large water consumption, high energy consumption, extremely difficult tailings treatment, and serious environmental pollution

Method used

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  • System for obtaining asphalt and building sand from oil sand

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Embodiment 1

[0011] A system for obtaining bitumen and sand for construction from oil sands, including screw conveyor (1), extraction tank (2), flotation tank (5), crude bitumen storage tank (7), three-phase centrifuge (8 ), sand-water mixing tank (9), stock solution tank (10), evaporator (12), crystallization tank (14), batching tank (16), clear water tank (17), water heating tank (19), asphalt washing tank (21), two-phase centrifuge (23), refined bitumen storage tank (24), plate and frame filter press (26), waste water tank (27), neutralization tank (29) and related centrifugal pumps, air pumps and connections The pipelines of the above equipment; the extraction kettle (2) is a jacketed stirred tank, the top of which is provided with a solid feed port and a liquid feed port, the bottom is provided with a discharge port and a steam inlet, and the jacket layer is provided with a steam inlet and a steam inlet. Condensed water outlet; the top of the flotation tank (5) is provided with an exh...

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Abstract

The invention relates to a system for obtaining asphalt and building sand from oil sand. The system comprises a screw conveyor, an extraction kettle, a flotation tank, a crude asphalt storage tank, athree-phase centrifuge, a sand-water mixing tank, a raw liquid tank, an evaporator, a crystallization kettle, a material preparation tank, a clean water tank, a water heating tank, an asphalt water-washing tank, a two-phase centrifuge, a fine asphalt storage tank, a plate-and-frame filter press, a waste water tank, a neutralization tank, a related centrifugal pump, an air pump and pipelines connecting the apparatuses above. According to the system, the asphalt and the building sand are obtained from the oil sand at the same time, so that the resource utilization efficiency is improved; throughcomprehensive utilization of water, especially washing water for the asphalt and washing water for plate-and-frame filtering are used for washing the sand at a time, and meanwhile a raw liquid is recycled. The design above greatly improves the comprehensive utilization efficiency of the water.

Description

technical field [0001] The invention relates to the technical field of petroleum refining and separation, in particular to a system for obtaining bitumen and construction sand from oil sands. Background technique [0002] Oil sand is an unconventional energy source that has emerged in recent years. It is also called tar sand because it contains natural bitumen. Oil sands are mostly black or gray-black, and are a mixture of sand grains, bitumen, clay particles, etc., and refer to sedimentary rocks containing bitumen or other heavy oil. The increasing demand for energy in the world economy and the continuous consumption of conventional oil resources have drawn more and more attention to unconventional oil resources; coupled with long-term high international oil prices, oil sands will occupy an important position in the future energy structure. my country is rich in oil sand resources, with oil sand geological resources of 5.97 billion tons and recoverable resources of 2.258 b...

Claims

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Application Information

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IPC IPC(8): C10G1/04C04B14/06C10C3/00C10G1/00
CPCC10C3/007C10G1/008C10G1/04C04B14/068
Inventor 沈剑
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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