JPS5949857A - Electrostatic precipitator - Google Patents

Abstract

PURPOSE:To improve the cleaning effect of an electrode without lowering the dust collecting efficiency, by connecting independently each group of electrodes to a power source, and providing a partitioning means for separating the passing of gas to each dust collecting chamber, in an electrostatic precipitator provided with a hammering means. CONSTITUTION:A group of discharge electrodes 12 is arranged in each inside of plural dust collecting chambers 13 which are partitioned by dust collecting plates 11,and each chamber 13 is separately opened and closed, by installing dampers 14 of partitioning means on the up-and-down-streams of each chamber 13. A group of electrodes 12 of each chamber 13 is connected to an electric power source 16 through each switch 15; the switch 15 and the electrodes 12 are insulated from each other by an insulator 17. Accordingly, each group of electrodes 12 is independently turned ON and OFF. In cleaning the electrodes of this precipitator, the discharge in the inside of a prescribed chamber 131 is turned off by closing the damper 141 and opening its switch 151 to scrape off the dust from the electrodes by actuating a hammering means. Next, the cleaning is performed in sequence at every chamber 13.

Description

[Detailed description of the invention] The present invention relates to improvements in electrostatic precipitators.

Conventionally, the device is provided with a plurality of discharge electrodes 1 and discharge plates 2 in pairs as shown in FIG. The exhaust gas is passed through a beating chamber 4 partitioned by a nest plate 2 and smelled.

However, this electric 11% Sho device K, especially the electric cleaning device that collects high resistance ducts, attempts to clean the electrodes by hammering them if dust adheres to them, but this is not enough for IT disputes. do not have. As a result, the stains on the eye plate 1 and the 11% eye plate 2 are significant, and over time +1'9 ″−
There are many t-type products that deteriorate and the ability to pour the fruit decreases accordingly. One possible way to improve this is to increase the striking force (4, 11), but in this case (1), there is a risk that the electrode, especially the electrode near the hammering part, may be printed. In addition, when hammering with a sharp charge, the electric current becomes extremely i'7M, so a method of lowering or cutting off the electric charge Pit when cleaning the electrode has been considered. Ru. However, 1-frame IW Qiyu Ming I7 i7 is 3-4 units'tE sentence) I! ;! 3 is a structure in which ``■Ki 1 custodian 1 unit operates, and one sudo 3 covers a wide ↑ (Akibe).For this reason, if you lower the load? There is an I#I problem in which the concentration of threads is greatly reduced.

In addition, when cleaning the electrodes, there is a period when 1# dust is imaged by the gas, and the μ and intelligence performance deteriorates. It's peaky.

The present invention has been made in view of the above circumstances, and its purpose is to lower the mourning effect and t(t).
<': 4j: (,) 719) The present invention is based on a decoy plate that can be used to improve the effect. Ichikika I has installed hammering means in multiple nesting chambers that are partitioned and placed inside! In this device, each attack acid electrode or discharge electrode group is insulated and electrically connected to the power supply for 1 time, and each mourning room or dark room group is connected to a gas passage, 1
11 I゛K
(Do-4-ru.

The present invention will be explained below with reference to practical examples illustrating the invention.

First of all, the πf Qi Guo Sogo shown in l Kan 2 in 1 is Gui 1 (i4
Partitioned by temporary 1] and released inside: pole 12 ・'1 [agricultural 8
■Shita? M-Kai's 115 darkroom has 13 shapes. In this Shu1 chess room 13, there are partitions 14, which are partitions, on the upstream and downstream sides, so that each chess room 13 can be opened and closed individually. One throw electrode 121 of each micrometer chamber 13 is connected to the other electrode 11 through a switch 15.
Each switch 15 and the modified throat 12 are electrically insulated by an insulator 17. 1 if each (12 hours);
+'Mountain' i5. fy ON, OF
When performing this, the designated dust collection chamber 13. damper zBty
(I1-IJ, open switch 15I, and
Let the charge in No. II to 131 be 01i' F, and in this state,
Create and assist the hammering means (not shown) in step 1, and then press + = ii.
Peel off the dust from i and do h1. Then, the above-described operation is performed for each -h funeral bet 13, and i'i'f Yi11 heating is performed for all I'1'-dark rooms 13.

In order to perform the final purification by charging the dust with this dust removal device, the removed dust is
There is no ``electric field or corona lightning'', and the pressure force of the IM disappears.As a result, the cleaning of the electrodes has been greatly improved, and the number of sheets has increased. Both the 4ifiJ 2 and the drain plate 11 are maintained at a state close to the clear f'P.As a result, discharge characteristics deteriorate over time.

In the town;
Since the downstream part is side-impacted by the damper 14, there is no longer a need for transport of stripped HtjI dust by gas. For this reason, it is possible to prevent the singing performance from deteriorating due to re-dispersed dust during the ``β-I'' battle.

In addition, when the load 71 is turned off, it is extremely important to turn off the load 71).
It is also possible to

Next, another example of the present invention will be explained.

The 6i air cavity elevation device shown in FIG. 3 is divided into 21 droplets and has 22 electrodes placed inside.
Dampers 24 are provided upstream and downstream of each dust collection chamber group 23 forming f23, respectively, so that each dust collection chamber 1 po 23 can be opened and closed individually. Furthermore, each dust collection chamber group 23
The electrodes 22 are each connected to a power source 26 via a switch 25, and each switch 25 and discharge electrode 22 are electrically insulated by an insulator 27. Therefore each j1
The membrane electrode 22 of %Akimuro Hfz3 is turned on independently.
, it can be turned off.

This electric fruit 1. ', 13 device uses the damper 24. of the dust collection chamber group 231 of 7i1r constant when performing open electrode r# purification. Close the switch 251 and open the switch 251 -Cs! % chamber R to J4'
The charge within η23° is turned off, and in this state, the hammering means (
(not shown) to remove dust from 'rtf, I5 to 'I'11 +1i11'. And each dust collection room group 23
Perform the above operations for each room group 23.
per l ~ purify. Similar to the one shown in Fig. 2, this rainwater collector IB17 device can also greatly improve the cleaning of the electrodes.

In addition, Dan/Mom is not limited to the one shown in Fig. 2, pB 31541, but is equipped with idle rails 32 at the top and bottom of the group room 31 (or collection and pasting room group), and is moved here. 33 may be provided.

As explained above, according to the present invention, uncharged electric hammering can be performed for each dust collection chamber and each group of dust collection chambers, so it is possible to maintain good discharge characteristics and prevent dust from being re-scattered by hammering. Therefore, the dust collection performance is improved, the device can be made smaller and the cost can be reduced, and it is particularly suitable for high-performance electric collective devices.

[Brief explanation of drawings]

fff, Figure 1 is an explanatory diagram of a conventional electric concentrator uH device, Figure 2
The figure shows an example of the Ikko Mokuchi Ming.
1to'') theory, opening of the country, Figure 4 is an explanatory diagram showing an example of Dan Taira's ([11. ...Plate electrode, 73, 23, ?1...S chamber, 14
．． 24...gunnoya, 15.25...switch, 1
6,26... Heavy ring, 17.27... Insulator, 32.
...Guide rail, 33...Move U1 slider Danno.

Claims (1)

[Claims] In a one-layer electric device in which a hammering means is provided in a plurality of narrow chambers partitioned by dust collecting plates and each having a discharge electrode arranged therein, each electrode or group of discharge electrodes is insulated. An electric 5Kffl device, characterized in that it is provided with a partitioning means that is electrically independent and subsequent to the electric current A width and partitions the passage of gas for each collection q/l chamber or for each group of threat dust chambers.