Petroleum residual oil solvent extracting device

Abstract

The invention relates to the technical field of extraction of residual oil, in particular to a petroleum residual oil solvent extracting device. The petroleum residual oil solvent extracting device comprises a supporting plate, compression mechanisms, a storage mechanism, a closing mechanism, a feeding hopper, a water draining tube, a circulating mechanism, a discharging mechanism, stirring mechanisms, a connecting mechanism and a sealing mechanism; the inside of the storage mechanism is symmetrically rotatably connected with the two stirring mechanisms; the rotating directions of the two stirring mechanisms are opposite; the residual oil in the storage mechanism is broken, so that the residual oil and an extracting agent are in contact fully, and the extracting efficiency is improved; thestorage mechanism communicates with the circulating mechanism, the circulating mechanism communicates with the compression mechanisms, the two compression mechanisms flush an extracting solution intothe storage mechanism through the circulating mechanism, therefore, the extracting solution moves in the two compression mechanisms and the storage mechanism back and forth, the residual oil and theextracting solution are in contact fully, and the extracting effect is improved; and the compression mechanisms move to suck the extracting solution in the storage mechanism through the circulating mechanism, so that the extracting solution is separated from the residual oil conveniently.

Description

technical field [0001] The invention relates to the technical field of residue oil extraction, in particular to a petroleum residue solvent extraction device. Background technique [0002] The residual oil obtained by distillation of crude oil under reduced pressure. Also known as vacuum residue. The heavy oil obtained from the bottom of an atmospheric distillation column is sometimes referred to as an atmospheric residue. The color is black and viscous, and it is semi-solid at room temperature. Its properties are related to the properties of crude oil. In petroleum refineries, residual oil is often used to process products such as petroleum coke, residual lubricating oil, petroleum asphalt, or as a cracking raw material. In petrochemical production, residual oil can be used to produce synthesis gas or hydrogen through partial oxidation, or as a raw material for regenerative cracking to produce ethylene. [0003] In the process of extracting the residual oil, the residu...

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Problems solved by technology

[0003] In the process of extracting the residual oil, the residual oil is semi-solid and unevenly contacted with the extract, resulting in low extraction efficiency, and the extract is mixed inside the residual oil, making it inconvenient to separate the extract from the residual oil; in view of this, this paper The invention provides a petroleum residue solvent extraction device, which has the following characteristics:

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