JPS58119358A - Electric dust collecting apparatus - Google Patents

Abstract

PURPOSE:To enhance dust collecting efficiency, by a method wherein a first discharge electrode is equipped with a conductive plate arranged in a strip like form so as to be extended to a vertical direction and having serrated parts provided to both side parts thereof and a second discharge electrode is vertically arranged to the dust collecting surface of a dust collecting part. CONSTITUTION:Plural serrated parts 12 are provided to the side flanges along the longitudinal direction of the conductive plate 11 of a first discharge electrode 10a. The upper end part 13 and the lower end part of the conductive plate 11 are bent 90 deg. in a thickness direction thereof to form attaching parts 14 and clamp openings 15 are formed to the center parts of the attaching parts 14. To a part along the center part in the width direction of the conductive plate 11, needle like bodies 16 are fixed so as to be pierced therethrough vertically. On the other hand, a second discharge electrode 10b comprises parallelly providing conductive plates 17a-17c and plural serrated parts 18 are formed to both side parts of the conductive plates 17a-17c at constant pitches. The upper end parts and the lower end parts of each conductive plates 17a-17c are bent 90 deg. in thickness directions to form attaching parts 20.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrodye dyeing device with significantly increased efficiency.

The electric industrial dust device generates a corona discharge between the discharge part and the dust part to form an electric current, and the dust to be collected is charged by this charged band. Charged dust is collected by suction into the dust collecting section.

Figure III is a plan view showing an example of a conventional electrical industrial dust device, in which the dust collection section is a plate-shaped chamber installed in parallel along the path of gas containing dust. The discharge part is composed of a flat plate 2 extending in the middle part of the dust collection poles 1 m and 1 b, and fasteners 3 a on the gas inflow and gas outflow sides of this flat plate 2, respectively. A discharge electrode 5 is constituted by the needle-shaped pieces 4g and 4b fixed by the needle 3b. The needle-like pieces 4 are planted at a predetermined pitch along the edge of the gas inflow of the flat plate 2, and their tips extend toward the gas inflow. Further, the needle-shaped pieces 4b are planted at a predetermined pitch along the edge of the gas outlet of the flat plate 2, and their tips extend toward the gas outlet side.

In the electric industrial dust f& As shown by the dotted line, corona discharge occurs at 1 m and 1 lb of dust collecting electrodes. On the other hand, when gas containing dust flows as shown by the arrow, most of the dust passing through the corona discharge area becomes negatively charged. Therefore, the part where this corona discharge occurs has a charged part force of 1, and the dust charged in this charged part is between the dust collection electrodes 1a and 1b and the discharge electrode 5. It is attracted by the generated stray electric field and collected in the dust collectors. (9) Part of the oppositely charged dust that is not negatively charged in the charging section is configured to be collected on the surface of the flat plate 2 that constitutes the discharge electrode 5.

However, the electrical industrial dust device 1 having the above configuration has a load 1Es in which a large number of needle-shaped pieces 4a and 4b are simply arranged side by side at a predetermined pitch in the vertical direction, and an electric field part where only an electric field is applied without corona discharge. This resulted in 4 losses. As a result, the layered properties of the electrical industrial dust equipment that can be satisfied by the #electronic violet are extremely low, and the desired characteristics cannot be obtained unless multiple units are connected in series, resulting in an extremely large product as a whole. This has the problem of becoming.

However, since the dust collecting electrode used in the electric industrial dust device having the above structure is simply a large number of needle-shaped pieces 4m and 4b arranged in parallel in the vertical direction at a predetermined pitch, each discharge portion This results in a single discharge, and as a result, the characteristics of electrical industrial dust equipment determined by the amount of charge deteriorate, and countermeasures such as connecting multiple units in series are required. .

To solve this problem, as shown in Fig. 2, a metal hollow vibro is fixed to the frame IP=7 and installed vertically, and a needle-shaped piece is attached to the hollow arm iso 6. It has been proposed to use a discharge electrode that extends along the gas flow direction by penetrating it.

However, even with such a configuration, the discharge portion is limited to 2X, and a sufficient amount of radiation wL cannot be obtained. (9) In such a configuration, it is necessary to make a large number of holes on the circumferential surface of the hollow vibro in order to implant the needle piece 8, and this work is extremely complicated, and the hollow vibro is damaged. In addition, the discharge electrode side requires a certain amount of dust collection area for the oppositely charged dust, but in the above configuration, the hollow / ( The diameter of the tube 6 naturally limits its surface types, and as a result, it becomes necessary to increase the dust collection area on the discharge electrode side by arranging plate electrodes or hollow pipes 9 in parallel. It has various drawbacks.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electrical industrial dust device which is compact and provides extremely high efficiency.

In order to achieve these objectives, the electrical industry ventilation system according to the present invention has a dust collection section arranged along the gas fi path, and a part parallel to the system section at a predetermined distance away from the system section. In an electrical industrial dust device having a discharge section disposed in a conductive plate that extends in the direction of the air and whose width direction is arranged substantially perpendicular to the front air inlet part and that has serrations on both sides; and a conductive plate that protrudes from the surface of the conductive plate in a direction along the gas flow. The second discharge electrode extends in the vertical direction, and the second discharge electrode extends in the vertical direction, and the second discharge electrode is configured by the sawtooth portion and a needle-shaped body that facilitates discharge. It is arranged perpendicular to the dust collection surface, and
By forming a conductive plate with a serrated part on the side thereof, the discharge part constituted by the first discharge electrode and the second discharge electrode is used as a charging part to improve dust collection efficiency. . Hereinafter, the electric industrial dust device according to the present invention will be explained in detail using the drawings.

FIG. 3 is a plan view showing an embodiment of the electrical business apparatus according to the present invention, and the same parts as in FIG. 1 are indicated using the same symbols. In the same figure, 10a and 1Qb are the final poles 1m in the middle position between the dust collecting poles la and lb arranged in parallel.
lb, the first . The second discharge electrode is 100 million yen.The first discharge electrode 10 is, for example, the fourth
It is configured as shown in the figure.

In the figure, reference numeral 11 denotes a conductive plate made of stainless steel or the like, which has a belt shape and has a thickness of about 31 mm. The side edges along the longitudinal direction of the conductive plate 11 are cut out in the form of valleys at a fixed pitch using a saw blade or the like, so that a large number of serrated portions 12 are formed at a fixed pitch. The upper end 13 and the lower end (not shown) of the conductive plate 11 are bent at 90 degrees in the thickness direction to form a mounting part 14, and the center of this mounting part 14 has a round shape through which the locking melt is inserted. A stopper hole 15 is formed in the central portion of the conductive plate 110 in the width direction. is fixed xs directly on the image and fixed by bath contact, etc. In this case, the protrusion t of the needle-like body 16 is set to be sufficiently large compared to the protrusion amount of the serrated part 12. , the tip of the needle-like body 16 is also sharpened.
The tip of the needle-shaped body 16 is more likely to cause corona discharge than the tip of the serrated part 12, so the tip of the needle-shaped body 16 is the main discharge part, and the tip of each serrated part 12 is the sub-discharge part. This will constitute a division.

On the other hand, the second discharge electrode 10b is configured as shown in FIG. 4, for example. In other words, the second discharge 11 is the conductive plate 17
m-? -17C are arranged in parallel, and each conductive plate 1 constitutes the first discharge electrode 10 of 17 m to 17 cU.
1, it is made of a conductive material such as stainless steel in a band shape. And each of these 411L plates 1
A large number of serrated portions 18 are formed at a fixed pitch on both sides of the 7-17c. Also, 5. Each conductive plate 17-17
The upper end portion 19 and the lower end portion (not shown) of c are bent by 90° in the thickness direction to form a mounting portion 20, and approximately in the center of this mounting portion 20 is a hole for passing a locking melt through. A hole 21 is provided. The three conductive plates 17a to 17C thus formed are separated from each other by a predetermined distance with their plane parts facing each other, and the width direction of the valley conductive plates 171 to 17C is 1 m as the dust collection pole.
The second discharge electrode is installed perpendicularly to the dust collection surface of the second discharge electrode. The first method with such a configuration.
The second discharge electrodes 10m and 10b constitute a discharge section by being arranged, for example, alternately along the dust collection electrodes 1m and lb.

In the electrical industrial dust equipment constructed in this way, a dust multiplying pole of 1 m, lb and a first . When a high voltage is applied between the second discharge electrodes lOa and 10b so that the terminals +111 and 1b are positive, the first discharge electrode on the gas inflow side is shown in FIG. 2nd broadcast 14L pole 10m
, 10b, the first discharge +jAIOa
A corona discharge is randomly generated from the tip of the needle-shaped body 16 and each tip of the serrated part 12, forming a dense and long-awaited electric kettle. Also, in the second emitting IE pole 10b, countless corona discharges are generated from the tips of each sawtooth portion 18 to form a charged band. Therefore, in the electrostatic multiplication device configured in this way, the first. The entire discharge section constituted by the second discharge electrodes 10m and 10b constitutes a charged band, and the width of the charged band is extremely wide compared to the conventional electrostatic multiplication device shown in Fig. 1. At the same time, the density in the charged band is also extremely high. Therefore, all the dust passing through such a charging band is reliably charged, and accordingly, reliable collection can be performed. In addition, in the device configured in this way, the first. 2nd discharge electrode 10m
, conductive plates 11.17a to 17a provided on 10b.
The surface becomes the dust collection surface on the other side, and a sufficient bottom area can be secured. In this case, since the dust collection area on the discharge electrode side was constituted by a surface along the gas passage in the conventional device, this part became an electric field area where corona discharge did not occur. As a result, the device becomes longer and the dust collection efficiency becomes lower.

On the other hand, in the above kc direction, the dust collection surface on the discharge electrode side is the surface in the direction intersecting the gas passage, that is, the conductive plate 11,
It is composed of surfaces 171 to 17C. Therefore, the dust collection surface on the discharge electrode side no longer occupies the entire length of the device. In order to increase this area, for example, it is sufficient to increase the number of 411 plates 171 to 17c of the second discharge electrode 10b.Increasing the number of conductive plates only increases the corona discharge area and lengthens the charged band accordingly. Along with this, the multiplication efficiency will further improve.

Note that in the above embodiment, the first. 2nd discharge electrode 10m
, 10b1! Although the explanation has been made using one conductive plate and three conductive plates, the present invention is applicable to the number of constituting conductive plates.
is not subject to any restrictions. Further, the first discharge electrode does not necessarily have to have a conductive plate, but the same effect can be obtained as long as it has at least a needle-shaped body.

As explained above, according to the electrostatic multiplication device according to the present invention, multiple discharges are performed from all forces λ and λ in the discharge section, so the width and density of the charged band becomes extremely high. This has an excellent effect of extremely high dust collection efficiency.

[Brief explanation of the drawing]

1st. FIG. 2 is a plan view and a perspective view of essential parts of an example of a conventional electrostatic multiplier, FIG. 3 is a plan view of an embodiment of an electrostatic multiplier according to the present invention, and FIGS. 4 and 5 are FIG. 4 is a perspective view of a main part of the 1° second discharge electrode shown in FIG. 3; In 1a, 1b--fruit pole, 101m--first discharge electrode, 10b--second discharge, etc., 11. i7a~1
7C... Conductive plate, 12.18 - Serrated portion, 14.2
0... Attachment part, 16... Needle-shaped body. Agent Patent Attorney Akira Suzuki Fuken'l+4'l+I+
engraving of the drawings (no change in content) Section 1, Figure 2, Figure 3, Figure 5, Figure 1a Procedural amendment (method) % formula % 1. Indication of the case 1986 Patent Application No. 210478 2. Name of the invention Electrical industrial dust equipment 3, Relationship with the case of the person making the amendment Patent applicant address Name Akiyo Hara 4, attorney 6 Number of inventions increased by amendment

Claims (2)

[Claims] (1) A dust collection section arranged along the gas passage;
In an electrical industrial dust device having a discharge section arranged in parallel and a predetermined distance away from the system dust section,
The discharge section is constituted by a first discharge electrode and a second discharge electrode, and the first discharge electrode is constituted by an electrode structure including a needle-shaped body extending at least along the system part. The second discharge electrode extends in the vertical direction, and is arranged so that its width direction is perpendicular to the dust collection surface of the system dust part, and has sawtooth-shaped edges on its widthwise side edges. An electrical industrial dust device comprising a conductive plate having: (2) A dust collection section arranged along the gas passage. In an electrical industrial dust equipment having a discharge part arranged in parallel at a predetermined distance from the system dust part,
The discharge section is composed of a first discharge electrode and a second discharge electrode, and the first discharge electrode has a strip shape and extends in the vertical direction, and its width direction is substantially perpendicular to the system dust section. A conductive plate is disposed in the conductive plate and has serrated portions on both sides thereof, and a conductive plate that protrudes from the surface of the conductive plate and extends in a direction along the gas flow to facilitate discharge than the Wi toothed portions. The second discharge electrode extends in the vertical direction and is arranged such that its width direction is perpendicular to the dust collection surface of the system dust part, and
An electrical industrial dust device characterized in that it is constituted by a conductive plate having serrations on its sides.