Dynamic purification regenerator of harmful solvent and application thereof

Abstract

The invention relates to a dynamic purification regenerator of a harmful solvent. The regenerator can carry out gas-liquid-solid three-phase separation. The dynamic purification regenerator of the harmful solvent comprises a tower head condenser, an upper fractionation section, a tower middle feed section, a lower fractionation section and a tower kettle which are sequentially in ground joint from top to bottom, wherein the tower head condenser is connected with a pressure stabilizing opening communicated with the atmosphere, a condenser pipe combining a ball shape and a snake shape is arranged in the tower head condenser, the pipe wall of the condenser is connected with a condensed water outlet and a condensed water inlet, a vapour-liquid distributor enabling ascending vapour to contact with descending condensate is arranged below the condenser pipe combining the ball shape and the snake shape, the pipe wall of the condenser is connected with an electromagnetic valve of the condensed water outlet and a tower top discharge hole used for extracting a light component at the tower top, the electromagnetic valve controls the flow rate of the reflux ratio, a speed reducer drives an evaporation bottle to rotate, the evaporation bottle is connected with the feed section by flexible connection and is heated by adopting a constant-temperature water bath, and the tower kettle is heated by adopting an electric heating sleeve. The invention has the characteristics of small equipment height, simple and convenient operation, high efficiency, high separation speed, energy saving and the like and is suitable for the separation and the purification of a conventional mixed solvent.

Description

Technical field: [0001] The invention relates to the fields of chemical industry, medicine and fine chemical industry, relates to a harmful solvent dynamic purification regenerator and its application, and specifically relates to the recycling of waste. Background technique: [0002] At present, domestic chemical, pharmaceutical and fine chemical industries (including laboratories and industrial production) produce millions of tons of acetone-petroleum ether, methanol-water, ethanol-chloroform, etc. Mixed solvents. These mixed solvents are difficult to recycle and are often discharged directly, which not only causes environmental pollution, but also causes waste of resources. From the perspective of environmental protection and economy, the recovery and reuse of solvent separation and purification is an urgent problem to be solved in this industry. [0003] Traditional solvent recovery methods mostly use simple distillation operations such as continuous distillation and bat...

AI Technical Summary

Problems solved by technology

[0003] Traditional solvent recovery methods mostly use simple distillation operations such as continuous distillation and batch distillation, and most of them are cooled to liquid and then re-entered into the tower for reheating and separation, resulting in repeated waste of energy

In addition, the original equipment still has problems such as large volume, inconvenient operation, and not suitable for use in small and medium-sized enterprises and laboratories.

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