JPS59183843A - Electrostatic dust collecting apparatus - Google Patents

Abstract

PURPOSE:To simultaneously perform dust collection, desulfurization, degassing and deodorizing in high efficiency, by using an electrostatic dust collecting apparatus wherein a plurality of discharge electrodes each formed by providing needle-like projections to the plural places of a plurality of intertwisted composite metal wires is arranged in a rotatable manner. CONSTITUTION:A discharge electrode 3 is formed by providing needle-like projections 2 to plural places of two intertwisted composite metal wires 1 and quietly rotated in a state provided to a ceramic insulator while a dust collecting electrode 4 is provided to the opposed position of the discharge electrode 3. When a DC current is flowed to the discharge electrode 3 to apply high negative potential, all of particles ionized at high density are attracted to the dust collecting electrode 4 by corona discharge 2' efficiently generated from the needle-like projections 2 opposed to the dust collecting electrode of the rotary discharge electrode and flowed into a precipitation tank while continuously removed by the flowing-down water 5 flowed on the dust collecting electrode 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrostatic precipitator, and more particularly to an electrostatic precipitator that can perform high-performance dust collection and does not require a chimney.

Conventionally used electrostatic precipitators generate corona discharge between a discharge electrode and a collector electrode, charge the particles in the gas, and use Coulomb force to adsorb particles to the collector electrode. It is.

With this kind of dust collector that uses corona discharge, there are practical limitations due to the size of the diameter and the type of gas, and the discharge electrode has a small diameter, so it may be difficult to cut or collect particles. There may be problems such as performance deterioration due to T = 1st place.

The present invention was made in view of the above-mentioned problems of conventional electrostatic precipitators, and the present invention is designed to have a strong discharge electrode that does not break, and has a uniform discharge effect. ,
The present invention provides an electrostatic precipitator that is highly efficient at capturing particulates and gases.

The electrostatic precipitator according to the present invention is characterized by rotatably disposing a plurality of discharge electrodes each having a plurality of stranded composite metal wires having a plurality of holes in a plurality of places. .

The electrostatic precipitator according to the present invention will be specifically explained with reference to an example shown in the drawings.

That is, FIG. 1 shows a discharge electrode in which tI-shaped protrusions 2 are provided at a plurality of locations on a plurality of (two in the figure) composite σ wires 1 arranged in an electrostatic precipitator according to the present invention. 3 is shown.

This discharge electrode is manufactured by twisting together multiple composite metal wires, with the ends of the composite metal wires protruding in the middle, and has a structure similar to that of conventional barbed wire (1). However, the difference is that it is a composite metal wire.

This composite metal wire rod is made by charging powder, granules, metal wire, etc. inside the tube member and making it into an appropriate diameter using a roll or swager. '1, Zr, Nll, Ta, ＼・' Kasa and their alloys, P1 group metals and these alloy pipes Metals or alloys with excellent corrosion resistance can be used, and in addition to these, iron-based materials such as, Commonly used carbon steel, stainless steel, etc. can also be used, and the abrasive material charged into the pipe part chassis may be in any form such as powder, granules, or rods. Although similar materials can be used, a variety of other metals and alloys such as Cu and CLI alloys, A1 and A1 alloys, etc. may also be used.

As shown in Fig. 12, 6 of the composite metal wire shrine is a tube member such as 'I゛1 as described above, metal or alloy thereof, and 7 is a powder, granule, rod, etc. also mentioned above. The material is charged into a container and made into an appropriate diameter by rolling or rolling.

FIG. 3 shows a schematic diagram for explaining the electrostatic precipitator according to the present invention, in which the discharge electrode 3 has needle-like protrusions at multiple locations on the two twisted composite metal wires 1. Although not shown in the figure, it is installed on a ceramic insulator and rotates quietly in the direction of the arrow by appropriate means. Collect current at the position (
1 is installed.

Now, by applying a direct current to the discharge electrode 3 and applying a high negative potential f=1, the discharge electrode 3 is rotated 11 times, so that it is rotated one after another and the 1-shaped protrusion 2 faces the dust collecting electrode 4. Particles ionized at a high density by the corona discharge 2', which is generated more efficiently, are all attracted to the dust collection electrode 1, and are continuously removed by the flowing sewage 5 flowing through the dust collection (temporary 41-) to the settling tank. Inflow.

In this way, the rotation of the discharge electrode 3 and the needle-like projections 2 provided on the discharge electrode 3 make it possible to completely collect even particles with high electrical resistance. Therefore, there is no need for hammering, no sparks are generated, there is no need for cleaning, and the discharge effect is low.
It has a strong and uniform discharge effect, and is highly efficient at capturing not only fine particles but also gas.

4 and 5 show specific examples of the electrostatic precipitator according to the present invention.

FIG. 4 is a perspective view of an electrostatic precipitator according to the present invention having a structure in which a plurality of discharge electrodes 3 are rotatably installed between two flat dust collecting electrodes 4. is the same as the explanation of FIG. 3, and the only difference is that there are four discharge electrodes 3.

FIG. 5 shows a discharge electrode 3 in an electrostatic precipitator according to the present invention.
This is a schematic diagram in which one rod-shaped dust collection electrode 4 is arranged alternately, and the operation/effect of this device is exactly the same as that explained in FIG. 3.

It is a matter of course that electrical insulation is good in FIGS. 4 and 5.

As explained above, since the electrostatic precipitator according to the present invention has the above configuration, it can perform high-performance dust collection, desulfurization, degassing, and deodorization at the same time, and the chimney can be Since the device itself acts as a chimney, there is little pressure loss, and since the discharge electrode rotates and the 1-shaped projections work efficiently, high-density and uniform ionization is possible, and spark discharge does not occur. In addition, the device is compact and has a long service life.

[Brief explanation of drawings]

Fig. 1 is a side view of a discharge electrode arranged in an electrostatic precipitator according to the present invention, Fig. 12 is a sectional view of a composite metal wire A, and Fig. 3 is an illustration of the electrostatic precipitator according to the present invention. 4 and 5 are schematic cross-sectional views showing an embodiment of an electrostatic precipitator according to the first and second aspects of the present invention. Stool) A plurality of combined composite metal wires, 2 - control projection, 3 - discharge electrode, 4 - dust collection electrode, 5 - flowing sewage, 6 - pipe member, 7 - interior material.

Claims (1)

[Claims] An electrostatic precipitator characterized in that a plurality of twisted composite metal wires are rotatably arranged with a plurality of discharge electrodes each having needle-like protrusions at a plurality of locations.