Oil sand continuous countercurrent extraction device

Abstract

The invention belongs to the field of petroleum chemical equipment, and especially relates to an oil sand continuous countercurrent extraction device. The oil sand continuous countercurrent extractiondevice comprises a reaction vessel; the upper segment of the reaction vessel is provided with an overflow mouth; the lower side of the overflow mouth is provided with a reaction vessel feed inlet; the bottom of the reaction vessel is provided with a reaction vessel discharge port; the upper side of the reaction vessel discharge port is provided with a solvent inlet; a plurality of separating assemblies are arranged in the reaction vessel between the reaction vessel feed inlet and the reaction vessel discharge port at intervals; a stirring rod is designed to penetrate separating plates from top to bottom successively; the upper side of each separating plate is provided with a plurality of stirring blades connected with the stirring rod; the upper end of the stirring rod is designed to stretch out from the reaction vessel, and is connected with a first driving part through transmission connection. The structure design is skillful and reasonable; multi-stage continuous extraction can berealized in one reaction vessel; management is convenient; oil sand extraction rate is high; solvent utilization rate is high; and people requirements can be satisfied.

Description

Technical field: [0001] The invention relates to the field of petrochemical equipment, in particular to an oil sand continuous countercurrent extraction device. Background technique: [0002] As an important basic petroleum resource, oil sand plays a pivotal role in my country's petrochemical industry. After the oil sand is mined in China, it needs to go through processing procedures such as crushing and screening to break the oil sand into oil sand particles and decompose the oil sand. The impurities in the sand are separated, and then the oil sand is placed in the extraction equipment and mixed with a solvent for extraction. At present, the oil sand extraction process generally adopts the technical scheme of stirring tank extraction, sedimentation or centrifugal solid-liquid separation. In order to improve the extraction rate of oil sand, the method of increasing the number of stages of stirring and solid-liquid separation is often used, resulting in process The process is...

AI Technical Summary

Problems solved by technology

At present, the oil sand extraction process generally adopts the technical scheme of stirring tank extraction, sedimentation or centrifugal solid-liquid separation. In order to improve the extraction rate of oil sand, the method of increasing the number of stages of stirring and solid-liquid separation is often used, resulting in process The process is cumbersome and complicated, there are many extraction equipment, the transfer and connection of materials between each extraction equipment are more cumbersome, and the management is more difficult. When a single equipment or transfer link fails, it will easily lead to the termination of the entire extraction process; and, using this method The solvent utilization rate of the method is low, and the solvent consumption and energy consumption are large

Obviously, the existing oil sand screening device can no longer effectively meet people's needs

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