Smoke dust removal system

Abstract

The invention discloses a smoke dust removal system. The smoke dust removal system is characterized by comprising an air guide pipe communicated with a pollution source, a cyclone device for holding filtrate, a first treatment chamber for holding filtrate, at least one second treatment chamber, a plurality of filtering balls and at least one liquid passing box, wherein the air inlet end of the cyclone device is communicated with the air guide pipe and is used for guiding the pollution source to rotate; the air inlet end of the first treatment chamber is connected with the cyclone device; the second treatment chamber comprises a filtering chamber for holding the filtrate and an air guide chamber used for guiding the pollution source to enter the filtering chamber; and the plurality of filtering balls are capable of moving along with the pollution source, are respectively arranged in the filtrate in the first treatment chamber, the filtering chamber and the cyclone device, and are provided with surfaces capable of attaching dust particles in the pollution source; the liquid pass box comprises a box body for holding the filtrate and an air conveying pipe, wherein the air inlet end of the air conveying pipe is connected to the second treatment chamber, and the air outlet end of the air conveying pipe is arranged below the liquid level of the box body.

Description

technical field [0001] The invention belongs to the field of separation of various exhaust gases containing lead and sulfur, and in particular relates to a smoke and dust removal system. Background technique [0002] Lead, sulfur and other pollution are mainly in mining, smelting, soldering, burning of leaded gasoline, all coal-fired boilers, production of leaded products, and (taking lead fume as an example) in lead-acid batteries, metallurgy, paints, pigments, etc. In the production process of the industry, when the temperature of the heated solid lead exceeds its melting point, as the temperature continues to rise, more and more lead vapor will escape from the surface of the lead liquid, and the lead vapor and fine lead oxide particles will The exhaust gas of the lead fume is lead fume, and the spongy lead oxide at the interface of the molten lead liquid and the air is lead dust. If the lead fume and dust are directly discharged into the air, it will cause greater air po...

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Problems solved by technology

[0004] However, even if the subsequent stages of treatment are added, the treatment effect is not ideal; the reason is first: the dust in the flue gas is caused by the droplets, liquid films, and bubbles produced by the washing liquid in the above washing device. Particles coagulate with each other and dissolve slowly, and a considerable part of these lead dusts have not had the opportunity to fully contact with the chemical solution in their devices, so it is impossible to talk about how to dissolve them; There is not enough time to dissolve in the device, so the chemical solution in the device is close to water for the passing polluted wind, not to mention the lead smoke in the aerosol state, at a speed of more than 2 meters per second, The coagulation and absorption effects of water in this simple spraying equipment are very poor; third, among the various existing treatment devices, it is unrealistic to purify the lead fumes and discharge them up to the standard if they lack two conditions One is that the lead fume will quickly form a relatively fixed channel after entering the treatment device with the atmosphere to be treated, and the filtering effect is poor; the other is that there is no artificial setting in this device to change the direction of the air intake The (method) device disturbs the air intake and prevents it from forming a fixed channel. The design effect of all this device will be greatly reduced; fourth, as an important part of the existing purification device, the purification of the treatment liquid itself has not been correspondingly Fifthly, because the existing treatment devices cannot independently complete the standard treatment of lead fume and dust, the so-called precision filtration must be carried out with the help of physical filtration such as filter cartridge filtration or high-efficiency filtration to reach the standard. The transition from wet gas to dry gas is not an easy task. It is not surprising that gel (carbon formation) appears on the surface of the filter cartridge due to carelessness, resulting in premature failure of the filter cartridge that is often reported in the industry; and Replacing a batch of filter cartridges is an expensive thing, of course, the harm caused by not changing is even greater

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