Solvent recycling and separating device

Abstract

The invention relates to a device capable of separating and recycling a solvent from a mixed liquid of water and an organic solvent; the device comprises a sealed container divided into four solution chambers comprising an oil storage chamber, a buffer chamber, a water storage chamber and an effluent chamber; the buffer chamber is provided with a mixed solution inlet, the oil storage chamber is provided with an organic solvent outlet and a residue discharging hole; the oil storage chamber, the buffer chamber and the water storage chamber are respectively provided with a water discharge hole, and the water outlet chamber is provided with a water outlet; the organic solvent outlet is provided with a gear oil pump, a magnetic levitation ball liquid level switch is arranged at the top of the oil storage chamber; the tops of the water storage chamber and the buffer chamber are respectively provided with vents; the oil storage chamber is provided with an inlet hole, the bottom of the buffer chamber is communicated with the water storage chamber, the upper part of the buffer chamber is communicated with the oil storage chamber, a water-passing board is arranged on the water storage chamber, and the water enters the effluent chamber through the water-passing board; and the top of the water-passing board separated between the water storage chamber and the buffer chamber is lower than that of an organic solvent transition board between the buffer chamber and the oil storage chamber. By using the density difference between the organic solvent and the water and the top surface height difference between the water-passing board and the organic solvent transition board, the organic solvent and the water can automatically enter the oil storage chamber and the water storage chamber from the buffer chamber in a layering manner; the water is automatically pumped back to the system so as to be recycled; and the solvent is automatically pumped to a solvent storage tank by the oil pump.

Description

technical field [0001] The invention relates to a separation device, in particular to a solvent recovery and separation device for separating and recovering a solvent from a mixed liquid of water and an organic solvent. Background technique [0002] In the process of adsorption and recovery of organic waste gas (toluene, benzene, xylene, acetone, ethyl acetate, etc.), the organic waste gas is condensed from the gaseous state to the liquid state, and then mixed with the aqueous solution. At this time, the organic liquid must be removed from the mixture It can be reused only after being separated from the solution. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the traditional separation device cannot perform 100% separation, and to provide a solvent that can be 100% separated and recovered from the water-organic solvent mixture, the organic solvent can be reused, and the water can also be recycled. A solvent recovery an...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the traditional separation device cannot perform 100% separation, and to provide a solvent that can be 100% separated and recovered from the water-organic solvent mixture, the organic solvent can be reused, and the water can also be recycled. Solvent recovery and separation device that can be continuously and uninterrupted according to production requirements

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