Solvent dewatering device

Abstract

The invention belongs to the technical field of separation, and more specifically relates to a solvent dewatering device. The solvent dewatering device comprises a box shell; a primary filtering chamber, a transition chamber, and a secondary filtering chamber are arranged in the box shell; a liquid inlet pipe, a water wheel, a gear, an upper toothed bar, a lower toothed bar, a penetration membrane1 connected with the upper toothed bar, and a penetration membrane 2 connected with the lower toothed bar are arranged in the primary filtering chamber; a resetting part 1 is arranged between the upper toothed bar and the box shell, and a resetting part 2 is arranged between the lower toothed bar and the box shell; an opening 1 provided with a one-way valve is arranged between the primary filtering chamber and the transition chamber; a piston connected with the box shell via sliding connection is arranged in the transition chamber; a resetting part 3 is arranged between the piston and the boxshell; an opening 2 provided with a one-way valve is arranged between the transition chamber and the secondary filtering chamber; an opening 3 provided with a one-way valve is arranged on the secondary filtering chamber; a penetration membrane 3 is arranged between the secondary filtering chamber and a vacuum chamber 1; and a supporting plate is arranged in the secondary filtering chamber. The solvent dewatering device is capable of realizing penetration of water through the penetration membrane easily, realizing a plurality of times of penetration membrane filtering, and improving solvent dewatering effect.

Description

technical field [0001] The invention relates to the field of separation technology, in particular to a solvent removal device Background technique [0002] In the production process of organic chemical industry, many organic solvents are often used. These organic solvents are often mixed with impurities such as water after use, making them unable to be directly reused. If these water-containing organic solvents are directly discharged into rivers and rivers, it is not only a kind of hazardous waste to the environment, but also wastes resources to a great extent and has not been fully utilized. Therefore, most of the water-containing organic solvents are currently subjected to a water removal treatment step. The most common and most common method of removing water from organic solvents is to use the different boiling points of organic solvents and water, and adopt distillation to collect organic solvent fractions to achieve the purpose of removing water. This type of solve...

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Problems solved by technology

[0004] However, the above-mentioned water removal device still has certain defects: 1. Only under the action of the vacuum pump, the water in the solvent is not easy to pass through the permeable membrane;

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