一种介电电泳汽车尾气除尘器

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.
本发明涉及一种介电电泳尾气除尘器,包括进气筒、出气筒、前端三元催化转换器、后端三元催化转换器,在进气筒及出气筒内同轴分别固装前端三元催化转换器及后端三元催化转换器,在进气筒及出气筒之间同轴连通固装一处理筒,在处理筒内两侧分别同轴镜像对称固装有陶瓷法兰盘,在两个陶瓷法兰盘之间径向均布间隔固装有电极对,在处理筒下部与两个陶瓷法兰盘之间的电极对连通固装有收尘盒,两个陶瓷法兰盘与两侧的进气筒与出气筒之间有间隙。本发明使用介电电泳技术,根据固体微粒、重金属与其所悬浮的气体在介电极化能力的不同,采用介电电泳力将固体微粒、重金属推离电极或将固体微粒吸附在电极上,由此降低汽车尾气中固体微粒及重金属的含量,从而达到降低固体微粒及重金属对大气的污染。

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