Purifying device for lead-containing sulfur-containing flue gas

Abstract

The invention discloses a purifying device for lead-containing sulfur-containing flue gas. The device comprises a waste heat exchanger, a gas overheat protection device, a thermal gas mass flowmeter, a mixed gas flow regulating valve, a microwave electronic spinning resonance reactor, an optomagnetic resonance effect-sulfur dioxide decomposition reactor, a VOC combustion treatment device, a flue gas washing and cooling tower and an induced draft fan. According to the purifying device, the electronic spinning resonance characteristic of a metal lead element is creatively utilized, when covalent electrons in lead dust are under the direction action of microwave radiation at the specific frequency, the electrons in the lead dust can generate a spinning resonance phenomenon, and then the strength of covalent bonds in molecules is weakened; meanwhile, when sulfur dioxide molecules in the waste gas are irradiated by cesium vapor lasers in an alternating electromagnetic field with the certain specific intensity, the strength of a S-O bond is gradually weakened through the optomagnetic resonance effect of substances, and bond breaking and dissociating are finally generated.

Description

technical field [0001] The invention relates to a purification device for flue gas containing lead and sulfur, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] Lead is a heavy metal element that widely exists in human production and life. From mining to finished product use, there are more than 100 professions related to it. Lead pollution is more obvious in the occupational environment. In addition, lead is also used in paints and coatings in the construction industry, preservatives in the food processing industry, and skin care and beauty products. [0003] At the same time, lead is also a highly toxic substance. Lead can have adverse effects on many human organs, especially the human lungs, kidneys, reproductive system, and cardiovascular system. These effects are manifested as mental decline (especially in children with obvious problems in learning), kidney damage, infertility, miscarriage, and high blood press...

AI Technical Summary

Problems solved by technology

[0005] In the secondary lead smelting process, a large amount of high-temperature dust-containing flue gas will be produced, which is generally discharged into the atmosphere after high-temperature utilization, bag dust removal and wet desulfurization. However, due to the unsatisfactory dust removal effect of the bag filter, a large amount of lead-containing smoke Gas enters the desulfurization system, making the lead content of the by-product desulfurization gypsum exceed the standard, which can only be treated as hazardous waste and cannot be further utilized

At the same time, since the desulfurization system currently used is generally a pneumatic emulsification system or spray system, the operation is unstable, and problems such as pipe scaling and blockage are prone to occur. The desulfurization efficiency is not ideal, and the sulfur content of the flue gas is easy to exceed the standard; The gas will bring out some small droplets containing sulfur and lead, and it will also cause the lead and sulfur content of the flue gas discharged into the atmosphere to exceed the standard. If it is not solved, it will cause extremely bad effects on the human body and the environment.

[0006] Traditional treatment methods generally have disadvantages such as high initial investment and later operation and maintenance costs, unstable lead dust treatment efficiency, easy blockage of filtration and capture equipment, large consumption of treatment materials, and generation of lead-containing waste liquid during the treatment process.

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