Recovery and purification method and device for oil fume

Abstract

The invention relates to a recovery and purification method and device for oil fume. The device comprises a direct current high voltage electric generator, a discharge electrode, an oil fume precipitation positive electrode, a waste oil collector and an oil discharge pipe, wherein the direct current high voltage electric generator is connected with an alternative current power supply; the discharge electrode is connected with the output negative electrode of the direct current high voltage electric generator through a high voltage wire; the oil fume precipitation positive electrode is connected with the positive electrode of the power supply; the oil fume precipitation positive electrode consists of a rigid surrounding body through which the oil fume passes and a conductive liquid flow or liquid film the surface of which carries positive electricity; the lower edge of the rigid surrounding body is connected with a liquid box filled with the conductive liquid; the liquid box is connected with the output positive electrode of the direct current high voltage electric generator; the box wall of the liquid box is provided with a liquid discharge hole below a collected waste oil layer; and the liquid discharge hole is connected with the liquid inlet of a pump through a conduit, and the liquid outlet of the pump is connected with a liquid distribution pipe. The device has high oil fume recovery high and persistent efficient purification capacity, dose not need to be cleaned, has no fire hazard, and saves steels. Thus, the method and device are completely suitable for recovery and purification of other aerosol particles.

Description

technical field [0001] The invention relates to a method and equipment for purifying waste oil fume. Background technique [0002] Statistics show that in 2010, my country's edible oil consumption was 65.6 million tons, and it is estimated that by 2011, the edible oil consumption will reach 89 million tons. At present, there are about 100,000 registered lodging hotels and catering legal entities in China, about 4.609 million corporate canteens, and about 100,000 various school canteens. Only the catering outlets in the urban area of ​​Beijing have grown to more than 50,000. But with the continuous growth of the catering industry, while dedicating delicious food to people, it has seriously polluted our air. [0003] The harm caused by household cooking fumes cannot be underestimated. Edible oil will be cracked at high temperature, producing a large amount of harmful oil fume, containing more than 300 kinds of harmful substances, these harmful substances have lung toxicity,...

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to provide a method and equipment for oil fume recovery and purification, which solve the technical problems of low oil fume purification rate and difficulty in meeting environmental protection requirements in the prior art; fire hazard issues

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