Alcohol steam recovery device

Abstract

The invention relates to an alcohol steam recovery device which comprises a vacuum pump, a condenser, a rotating packed bed, a circulating pump, a circulation fluid storage tank and a cyclone separator, wherein, the condenser is installed at the front part of the rotating packed bed; an upper plate of a cylinder body is arranged at the upper part of the rotating packed bed; a circulation fluid inlet pipe and a fresh fluid inlet pipe are arranged on the upper plate of the cylinder body; an electric motor is arranged at the upper part of the rotating packed bed; a gas outlet pipe is arranged onthe side surface of the rotating packed bed; the cyclone separator is connected with the gas outlet pipe; a gas inlet pipe and a liquid outlet are arranged at the bottom of the rotating packed bed; and the condenser is connected with the gas inlet pipe. The alcohol steam recovery device adopts repeated circulating absorption, and adopts the rotating packed bed with very high separation absorptioncapacity, so that the consumption of purified water is saved greatly, further, the recovery rate of alcohol steam can reach more than 90 percent.

Description

technical field [0001] The invention relates to a recovery device, in particular to an alcohol vapor recovery device. Background technique [0002] Alcohol vapor is widely used in various process industries, such as pharmaceutical, food, light industry, petroleum, chemical and other industries. In these industries, a considerable part of alcohol vapor is discharged into the atmosphere in the form of waste tail gas, which not only wastes resources but also pollutes the environment. There is a lot of alcohol waste gas produced in the country every year, and many enterprises do not pay attention to recycling or the absorption efficiency is low. If this part of alcohol is recycled, it will save a lot of investment and bring economic benefits. In recent years, the absorption of alcohol vapor from industrial exhaust has attracted people's attention, which not only reduces environmental pollution, but also recovers resources and creates economic benefits. [0003] In recent years...

AI Technical Summary

Problems solved by technology

The above-mentioned process needs to control the temperature range and the operating conditions are relatively harsh, which leads to a large energy consumption in the recovery process and a relatively low absorption rate of alcohol vapor

Chinese patent documents CN201988208U, CN2495646, CN2213014, CN2676995, CN201356988 and CN2808905 etc. all disclose some devices about alcohol recovery, but these devices all include tower body, heat exchanger, condenser, shunt pipe and evaporator etc., these devices The volume is huge, the space utilization rate is small, the pressure drop per unit bed is high, the mass transfer coefficient is small, the mass transfer efficiency is low, and the requirements for physical parameters (especially the gas-liquid ratio) are high, resulting in the consumption of absorbent very large

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