JPH0556251U - Electrostatic dust collector dust collector cleaner - Google Patents

Abstract

(57) [Abstract] [Purpose] Dust adhering to the surface of the dust collector of an electrostatic precipitator can be efficiently removed in a short time. [Structure] A cleaner is a scraping plate 1 composed of a rectangular metal plate 3 horizontally mounted between both dust collecting poles of an electrostatic precipitator and a flexible plate 4 extending from two opposite sides thereof, and the scraping plate 1 is moved up and down. A flexible hoist (not shown) having a length such that the tip of the flexible plate 4 comes into contact with the opposing dust collecting electrode surfaces of the electrostatic precipitator, and the flexible plate 4 is provided with a slit 2a for taking in the discharge electrode. At the same time, the scraping plate 1 is provided with a clearance portion 2 for the discharge electrode that allows the scraping plate 1 to move vertically. If the scraping plate 1 is moved up and down by the hoist while keeping the scraping plate 1 horizontal by the hoisting tool 8, the flexible plate 4 can easily remove dust on both dust collecting electrode surfaces.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a dust collecting electrode cleaner that removes dust and the like adhering to the surface of the dust collecting electrode from both electrodes of an electrostatic precipitator.

[0002]

[Prior Art]

 A Cottrell electrostatic precipitator is generally used to remove dust in the exhaust gas from the kiln. As shown in FIGS. 5 (a) and 5 (b), this electrostatic precipitator applies a DC high voltage between the discharge electrode 5 (discharge line), which is the positive electrode, and the dust collection electrode 6, which is the negative electrode. When the exhaust gas is passed, the dust is positively charged by the corona discharge and is collected by the dust collecting electrode 6 which is grounded. The dust collecting electrode 6 loses the charge and falls to the hopper 7 below.

However, if this electric dust collector is used for a long period of time, dust will adhere to the discharge wire 5 and accumulate, and dust will also adhere to the dust collector electrode 6 and the inside of the dust collector will have high temperature and high humidity. Therefore, rust may be generated on the surface of the dust collecting electrode 6, and the rust may be peeled off to narrow the gap between the discharge wire 5 and the dust collecting electrode 6 to cause insulation deterioration. In any case, since such dust reduces the dust collection efficiency of the electrostatic precipitator, it is necessary to remove the dust etc. by using the time when the electrostatic precipitator is stopped.

However, this dust collector has a structure in which it is possible to clean only the upper and lower ends of the electrodes and it is not possible to clean the whole (usually, the distance between the dust collecting electrodes 6 shown in FIG. Workers cannot enter or leave, and there is no corridor in the middle section). Therefore, the removal work involves manually striking the discharge wires and dust collecting electrodes at the upper and lower ends to drop dust and the like from the impact, and the upper end side must be cleaned while cleaning the lower side, that is, the hopper 7 side. The dust falls from the top, so the working environment becomes poor.

[0005]

The dust collector is cleaned manually as described above, but the working environment is poor. The worker had to wear an outside air introduction mask to perform the work, and there was a problem that the dust at the dust collecting electrode in the middle part could not be completely removed. The present invention solves such a problem, and provides a dust collector cleaner which eliminates cleaning on the hopper side and enables the dust collector to be cleaned efficiently and completely even when the dust collector is stopped in a short time. Is an issue.

[0006]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems and adopts the following technical means. That is, it comprises a scraping plate composed of a rectangular rigid plate and a flexible plate extending from two opposite sides thereof, and a vertical moving device for moving the scraping plate up and down, and the tip of the flexible plate is opposed to the electrostatic precipitator. This is a dust collector cleaner for an electrostatic precipitator, which is in sliding contact with the dust pole and has a clearance part for the discharge electrode suspended between the dust collector poles on the scraping plate.

[0007]

[Action]

 Since the present invention is configured as described above, by mounting the scraping plate between the dust collecting electrodes and moving it up and down by the vertical movement device (hoist), the dust and rust adhering to the dust collecting electrodes can be efficiently moved by the flexible plate. It can be removed.

[0008]

【Example】

 One embodiment of the present invention is shown in FIGS. 1 is a perspective explanatory view, FIG. 2 (a) is a plan view of FIG. 1, and FIG. 2 (b) is a side view of FIG. 2 (a). As shown in FIG. 2 (b), the scraping plate 1 is composed of a rectangular metal plate 3 and a flexible plate 4 extending from two opposite sides of the rectangular metal plate 3, and the flexible plate 4 and dust collecting electrodes on both sides facing each other. It is provided so as to be in sliding contact. Further, since the flexible plate 4 is provided with the clearance portion 2 for the discharge electrode, it is possible to freely move the flexible plate 4 up and down. Further, if the clearance portion 2 is provided on the entire one surface side of the flexible plate 4, a part of the dust collecting electrode that cannot be cleaned occurs. Therefore, the slit 2a for locking the discharge electrode is provided.

FIG. 3 is a plan view of another embodiment of the present invention. With this configuration, it is not necessary to provide the slit 2a as shown in FIGS. 3 (a) and 3 (b) are different in how to attach the scraping plate 1 to the discharge wire 5. As shown in FIG. 1, a hanging tool 8 is provided on the scraping board 1 so as to suspend the scraping board 1 horizontally, and a tip of the hanging tool 8 is moved up and down by a hoist (not shown). It is possible to remove dust and rust over the entire length of the dust collecting electrode surface on both sides.

As shown in FIG. 4, the applicant of the present invention separately proposes a cylindrical body 1a which is a dust cleaning tool dedicated to the discharge electrode (discharge line), and the cylindrical body 1a is provided in the slit 2b. Therefore, it can be easily attached to and removed from the discharge electrode, and by moving up and down while it is still attached to the discharge electrode, the dust on the discharge electrode surface can be easily and efficiently removed. . Therefore, the scraping plate 1 of the present invention and the suspension ring 8a of the two columnar bodies 1a are connected to each other and attached to the dust collecting electrodes and the discharge electrodes in the block shown by the diagonal lines in FIG. By vertically moving the hanger 8 by (No.), both dust and rust in the block can be efficiently removed at the same time.

[0011]

[Effect of the device]

 The present invention has the following excellent effects. (1) Dust and rust can be completely removed, including the parts that could not be removed by conventional methods. (2) The dust collection electrode becomes the same as that of the new product by cleaning, so the dust collection effect during steady operation increases. (3) Since the dust collecting electrode is completely cleaned, rust on the dust collecting electrode can be cleaned and the life of the dust collecting electrode can be extended. (4) It is possible to improve working environment and working conditions such as safety measures.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

2 (a) is a plan view of FIG. 1, and FIG. 2 (b) is FIG.
It is a side view of (a).

FIG. 3 is a plan view of another embodiment of the present invention.

FIG. 4 is a cleaning tool dedicated to a discharge line (discharge electrode), which is separately proposed by the present applicant.

5A and 5B are explanatory views of the electrode arrangement of the electrostatic precipitator, FIG. 5A is a side sectional view, and FIG. 5B is AA of FIG. 5A.
It is an enlarged view of the arrow cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Scraping plate 1a Cylindrical body 2 Clearance part 2a, 2b Slit 3 Metal plate 4 Flexible plate 5 Discharge line (discharge electrode) 6 Dust collecting electrode 7 Hopper 8 Lifting tool 8a Suspension ring

Claims (1)

[Scope of utility model registration request] 1. A scraping plate composed of a rectangular rigid plate and a flexible plate extending from two opposite sides thereof, and a vertical moving device for moving the scraping plate up and down. The tip of the flexible plate is an electric plate. A dust collector cleaner for an electric dust collector, which is in sliding contact with the opposite dust collector electrodes of the dust collector, and is provided with a clearance portion for the discharge electrode hung between the dust collector electrodes on the scraping plate.