Dielectrophoresis automobile exhaust dust remover

Abstract

The invention relates to a dielectrophoresis automobile exhaust dust remover which comprises an air inlet cylinder, an air outlet cylinder, a front-end three-way catalytic converter and a rear-end three-way catalytic converter. The front-end three-way catalytic converter and the rear-end three-way catalytic converter are fixedly arranged in the air inlet cylinder and the air outlet cylinder respectively in a coaxial mode, a processing cylinder is fixedly installed between the air inlet cylinder and the air outlet cylinder in a coaxial and communicated mode, ceramic flange plates are fixedly installed at the two sides inside the processing cylinder in mirror symmetry in a coaxial mode respectively, electrode couples are fixedly distributed between the two ceramic flange plates in the radial direction at intervals, the electrode couple between the lower portion of the processing cylinder and the two ceramic flange plates is fixedly provided with a dust collecting box in a communicated mode, a gap is formed between one ceramic flange plate and the air inlet cylinder arranged at one side, and a gap is formed between the other ceramic flange plate and the air outlet cylinder at the other side. According to the dielectrophoresis automobile exhaust dust remover, the dielectrophoresis technology is adopted and due to the fact that the dielectric polarization capacity of solid particles, the dielectric polarization capacity of heavy metal and the dielectric polarization capacity of suspended gas are different, the solid particles and the heavy metal are pushed out of an electrode or the solid particles are attracted to the electrode through the dielectrophoresis force, so that the content of the solid particles and the content of the heavy metal in automobile exhaust are reduced, and therefore pollution to the atmosphere by the solid particles and the heavy metal is reduced.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a treatment device for automobile tail gas, in particular to a dielectrophoresis dust collector for automobile tail gas. Background technique [0002] The pollution caused by automobile exhaust has become one of the main sources of urban air pollution. At the same time, automobile exhaust is also one of the main sources of PM2.5. It is reported that 20% of PM2.5 comes from automobile exhaust. [0003] Vehicle exhaust contains a large amount of pollutants such as nitrogen oxides (NOx), hydrogen compounds (HC), carbon monoxide (CO), particulate matter (PM) and heavy metals, among which NOx is the main cause of photochemical smog and acid rain in the atmosphere. In order to reduce the adverse effects of automobile exhaust on human beings and ecosystems, countries around the world have increasingly strict restrictions on the emission of harmful gases in exhaust. In 1985, the U....

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Problems solved by technology

[0004] In 2001, the vehicle exhaust emissions of 8 companies were randomly checked to meet the requirements of the European No. 1 emission limit regulation, and most of the products also met the requirements of the European No. 2 emission limit regulation. This is the same as the 2001 random inspection. It is directly related to the three-way catalytic converter, but there is still a gap of 5-10 years compared with Euro Ⅲ and Euro Ⅳ that are being implemented abroad

[0007] In summary, it can be found that the current automobile exhaust purification technology is the technical development and purification treatment of NOx, HC, and CO, but there is no treatment and collection device for PM (particulate matter) in automobile exhaust

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