SU1393483A1 - Electric precipitator - Google Patents

Abstract

The invention relates to ycTpoii sticks; c1 purification of dusty gases in electrostatic precipitators and can be used in ferrous, non-ferrous metallurgy and other sectors of the national economy with the aim of increasing the degree of gas purification. The device contains precipitation and corona electrodes with plates made in the form of paired interceptors with front and rear edges. Due to the shape of the paired interceptors in the form of a concave cycloid facing the precipitation electrode, the dust particle acts in addition to the electrical forces by the force of the hydraulic pressure r; i of the flow, leading to an increase in the drift velocity of the dust particles to the precipitation electrode. The device allows for improved gas cleaning. 2 3.IT. f-ly, 1 ill. & (L

Description

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The invention relates to the cleaning of drunk lawn in electrostatic precipitators and can be used in ferrous, non-ferrous metallurgy and other sectors of the economy.

The aim of the invention is to increase the gas purification rate by increasing the drift velocity of the particles of the aerosol to the collecting electrodes.

The drawing shows the electrostatic precipitator

Between the connecting electrodes 1 are paired protective elements - interceptors 2, made in the form of a concave cycloid facing the precipitation electrode 1. The front edges 3 of the interceptors 2 are interconnected, and the rear edges A are covered with a dielectric layer. Correlating electrodes 5 create a charge zone 6 Forces of aerosol particles, and 1 interceptors 2 create a zone 7 of sedimentation of aerosol particles on precipitator electrodes 1, py-gas flow passes sequentially through zones 6 and 7.

The electrostatic precipitator works as follows.

Drinking a gas stream passes sequentially through charging zone 6, in which aerosol particles from corona-forming electrodes 5 are charged, then zone 7, in jcoTopoii, charged wasp / aerosol charge particles are pumped to the precipitated electrodes 1 under the influence of an electric field of high voltage. female tiocTH. Aerosol particles having the same charge with PPTS 2 receptors are repulsed from it under the action of Coullower Force And, in a similar way, on the particle yield i) i: the force of the hydraulic pressure of the gas flow and the Coulombon force directed to the surface iptertsetora 2. Since the surface

Interceptors 2 is a concave cycloid facing to a hundred-P01 {at the precipitated gel electrode. a 1, the component of these two forces is also directed to the precipitation electrode 1.

Component 1G (and two forces act on aerosol particles, which acquire an additional component of the drift velocity to the collecting electrodes 1.

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Thus, the force of the hydraulic pressure of the dust-gas flow arising with the help of paired interceptors 2 becomes an additional force contributing to an increase in the drift velocity of the aerosol particles to the collecting electrodes 1 and, thereby, increases the degree of gas purification.

The shape of the surface of the interceptors 2 (which is a concave cycloid) creates optimal conditions for the accelerated descent of aerosol particles from the trailing edge 4. The connection of the front edges 3 of the interceptors 2 and making their surfaces gas permeable reduces the hydraulic resistance of the electrostatic precipitator. Covering the rear edges 4 of the interceptors 2 with a dielectric layer contributes to an increase in the electric field intensity by increasing the electrical resistance of the interelectrode gap, which enhances the effect of the Coulomb force on the aerosol particle, and increases the gas purification rate.

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Claims (3)

1. An electric filter comprising channels of lamellar collecting electrodes, between which the discharge electrodes and protective elements of plates with paired leading edges, are located, characterized in that in order to increase the degree of gas purification by increasing the speed of the drike-1-fa aerosol particles to the collecting electrodes, the protective elements are placed behind the discharge electrodes and are electrically connected with them, made in the form of paired interceptors with the surface in the form of a concave cycloid facing the precipitation electrode . 2. The electric filter according to claim 1, characterized in that the surface of the interceptors are made gas-permeable. 3. The electrostatic precipitator according to claim 1, of which there is a C l and that the trap edges of the interceptors are covered with a dielectric.