Acid waste gas recycling and purification device

Abstract

The present invention discloses an acid waste gas recycling and purification device. The device mainly includes a gas collecting hood, a fan, a condensate recycling bin, an absorption and purification tower, a circulating spray pump and a gas pipeline. The gas collecting hood, the fan, the condensate recycling bin and the absorption and purification tower are connected successively by the gas pipeline. A liquid collecting hopper and an acid liquid discharge orifice tube are arranged at the bottom of the condensate recycling bin. A liquid storage tank is arranged at the bottom of the absorption and purification tower. A dosing orifice is arranged on the liquid storage tank. A plurality of spray devices are arranged at the middle part of the absorption and purification tower, filling layers are arranged under each of the spray device and the filling layers are activated carbon fiber layers or granular activated carbon layers. The spray device and the circulating spray pump are connected and another end of the circulating spray pump is connected to the liquid storage tank. A demister is arranged at the uppermost part within the absorption and purification tower, and an air outlet is arranged at the top end of the absorption and purification tower and is connected to a chimney. The acid waste gas recycling and purification device is capable of recycling and using acid mist, good in purification effect, stable in performance, low in power consumption, easy in maintenance and easy in operation.

Description

technical field [0001] The invention relates to the technical field of industrial waste gas treatment, in particular to an acid waste gas recovery and purification device. Background technique [0002] With the development of science and technology, the degree of industrialization is getting higher and higher, and the resulting waste gas pollution has attracted more and more attention. These harmful gases must be strictly treated to meet the comprehensive atmospheric emission standards before they can be discharged into In the atmosphere; especially in the pickling process of chemical, electroplating production and processing, a large amount of acid mist gas is generated, which seriously damages the plant and equipment, pollutes the air, and has great harm to the body of the surrounding personnel, affecting health ; The existing method for treating acid waste gas is to use NaOH solution for neutralization treatment, which is difficult to completely purify, and the waste of n...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an acid waste gas recovery and purification device, which solves the problems in the prior art that it is difficult to completely purify acid waste gas and reduce the high cost of using neutralizing liquid

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