Recovery device for recovering dimethylamine from waste water

Abstract

The invention discloses a recovery device for recovering dimethylamine from waste water, which comprises a waste water pond and a dimethylamine solution storage tank and also comprises a bubbling pond, a thermally driven film evaporator, an evaporation chamber, a falling film evaporator, a vapor-water separator, a film separator, a condenser, a cooler and a reuse water pond. The recovery device disclosed by the invention is simple in structure, is provided with the falling film evaporator and the film separator, can realize low-temperature heat source heating, can recover dimethylamine by vaporizing waste water at a temperature below the boiling point of the waste water, and improves the universality. Besides, the recovery device is convenient and quick to use, low in operation energy consumption and remarkable in energy saving and emission reduction effect, can simultaneously recover dimethylamine and pure water, and can effectively improve the dimethylamine recovery efficiency to some extent; and meanwhile, the recovery device lowers the recovery cost, realizes non-toxic clean production and recycling, and is high in applicability and favorable in practicality.

Description

technical field [0001] The invention relates to a recovery device for recovering dimethylamine from waste water. Background technique [0002] The dimethylamine waste water recovery device in the prior art generally uses steam heating, and the recovery is completed by distillation, packed tower, acid absorption tower, etc. Although it can realize the recovery of dimethylamine waste water, the power consumption of the equipment is large, and it is easy to Cause secondary pollution, its energy saving and emission reduction effect is poor, and the recovery efficiency is also low, and it increases the production cost of the enterprise at the same time, and it is difficult to meet the needs of the market. Contents of the invention [0003] The purpose of the present invention is to provide a recovery device for recovering dimethylamine from wastewater, which has simple structure, high recovery efficiency and can vaporize wastewater below the boiling point of wastewater to recov...

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Problems solved by technology

[0002] The dimethylamine wastewater recovery device in the prior art generally adopts steam heating, and the recovery is completed by distillation, packed tower, acid absorption tower, etc. Although it can realize the recovery of dimethylamine wastewater, the power consumption of the equipment is large, and it is easy to Cause secondary pollution, the effect of energy saving and emission reduction is poor, and the recovery efficiency is also low. At the same time, the production cost of the enterprise is increased, and it is difficult to meet the needs of the market.

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