JPS5823428Y2 - Dust scraping brush - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust scraping brush, and particularly to a dust scraping brush suitable for scraping off dust attached to the surface of a plate moving in a vertical direction.

An electrostatic precipitator equipped with a movable dust-collecting electrode plate has been proposed as a dust removal device for exhaust gas containing dust with high electrical resistance.

In this device, the dust collecting plate moves alternately between the dust collecting area with the discharge electrode and the ovarian dust area without the discharge electrode, and the ovarian dust area scrapes the dust attached to the surface of the dust collecting plate in the dust collecting area. The dust collection electrode plate is generally suspended vertically and moved vertically.

As a means of scraping dust off the surface of the dust collecting electrode plate,
Usually, a brush having metallic brush wires is placed at a position where the dust-collecting electrode plate passes, and a means is used to continuously scrape off dust.

In such cases, the brush is required to have the ability to reliably scrape off dust, and in particular, it is required that its function not deteriorate even after long-term use.

Various types of dust scraping brushes have been tried in the past, but one that can stably maintain the dust scraping function even if the brush wires are worn out by long-term use. There was no.

Therefore, when the brush wire has worn out beyond a certain amount, it is necessary to replace the brush wire with a new one.

If this frequency of replacement is too high, it will cause problems due to stoppage of operation and an increase in repair costs, which is an important problem that must be solved.

Such a problem is not limited to the above-mentioned electrostatic precipitator, but is also a problem common to brushes equipped with brush wires made of metal or the like.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional technology, especially when it comes to scraping off dust attached to the surface of a plate moving in the vertical direction, and to provide stability even when the brush wires are worn out due to long-term use. To provide a dust scraping brush that can maintain its performance.

The dust scraping brush according to the present invention is provided with a pair of brush plates such that their vertical surfaces face each other via a link between fixed members provided at a predetermined interval,
The brush plate is characterized in that brush wires are planted on the opposing surface of the brush plate.

In such a configuration, a vertically moving plate (hereinafter simply referred to as a moving plate) to which dust is attached moves and passes between the opposing brush plates in parallel to the surface of the brush plates.

In the process of moving between the brush plates, the movable plate comes into contact with the brush wire, and dust adhering to the surface of the movable plate is scraped off.

As mentioned above, the brush plates are provided between the fixed members via links, and the opposing distance between them can be changed. Therefore, even if the brush wires are worn out, for example, they will not be affected by the passing moving plate. , it is possible to maintain a substantially constant pressing force through the brush wire.

Hereinafter, the present invention will be explained based on drawings of embodiments.

1 to 5 show an embodiment of the present invention.

The pair of fixing members 10 are fixed to a part of the device (not shown) at a predetermined interval corresponding to the longitudinal dimension of the movable plate 20.

One end of four links 30 having the same length is rotatably attached to each fixed member 10 by a pin 32.

Each link 30 hangs diagonally downward to each other in a U-shape with the pin 32 as a fulcrum, and the other ends are rotatably connected to the end of the brush plate 40 by a pin 34, respectively.

Both ends of the brush plate 40 are connected to the fixed member 10 via the links 30, the vertical surfaces thereof are located opposite each other, and the brush wires are arranged in rows on the opposing surface of the intermediate portion 42. It is planted.

The brush wires are arranged diagonally upward, and their tips extend to such an extent that they come into contact with the tips of the opposing brush wires at the center of the opposing space.

By adopting the above configuration, the brush plate 40 is connected to the pin 32.
In conjunction with the movement of the link 30 with the fulcrum being the fulcrum, it is possible to move in parallel over a constant distance.

As shown in FIGS. 2 and 3, when the movable plate 20 is not present in the opposing space sandwiched between the brush plates 40,
The distance between the pair of brush plates 40 is maintained at a minimum by the stopper 46 coming into contact with the side of the fixed member 10.

4 and 5, the movable plate 20 moves in the opposing space at arrow A.
This figure shows the state in which it is passing in the direction of .

In this state, the movable plate 20 forcibly pushes open the tip of the brush wire 44 and moves, so the elasticity of the brush wire 44 causes the brush plate 40 to move in parallel diagonally upward from its original position, and the opposing distance becomes larger and the stopper 46 is spaced apart from the side of the fixing member.

At this time, a horizontal force based on the own weight of the brush plate 40 acts on the movable plate 20 via the brush wire 44, and the movable plate 20
Dust adhering to the surface is scraped off.

Even if the brush wires are worn out due to long-term use, as long as the elasticity of the brush wires can be utilized, the horizontal force due to the brush plate 40's own weight acts on the movable plate 20, so dust can be scraped off stably. Can continue functioning.

Note that depending on the degree of wear of the brush wires, there will be a slight difference in the spacing between the opposing brush plates, and as a result, there will be slight differences in the horizontal component force due to the brush plates' own weight, that is, the pressing force of the brush wires against the movable plate. However, there is no practical problem at all.

FIG. 6 shows an embodiment in which the movable plate 20 moves from the direction of arrow B, and in this case, the brush wires are planted diagonally downward from the brush plate.

゛ Fig. 7 shows a modification of the present invention, in which the ends of the fixing member 10A and the brush plate 40A are connected to a pair of links 30.
A stopper 35A is provided on the link 30A to prevent the brush plate 40A from approaching more than necessary.

The lower end of the brush plate 40A forms a weight part 45A, and this weight part 45A minimizes the inclination of the brush plate when the movable plate 20 passes through the space facing the brush plate 20. It serves to apply a large pressing force to the moving plate.

In the several embodiments described above, the brush wires were installed in an oblique direction with respect to the brush plate, but the brush wires are not limited to this, and may be installed in a vertical direction.

Further, the mounting position of the stopper is not limited to the above-described embodiment, and may be determined by other means, and the stopper may be omitted in some cases.

As mentioned above, the dust scraping brush according to the present invention is
Even if the brush wire wears out due to long-term use, the tip of the brush wire will come into contact with the moving plate with a nearly constant pressing force.
The dust scraping function can be maintained stably and continuously.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Figs. 2 and 3 are a side view and a longitudinal cross-sectional view, respectively, when the moving plate is not passing through, and Figs. 4 and 5 are respectively showing the moving plate. FIG. 6 is a vertical cross-sectional view showing another embodiment of the present invention, and FIG. 7 is a side view showing a modification of the present invention. 10... Fixed member, 44... Brush wire, 20... Moving plate, 46... Stopper, 30... Link, 40 ...Brush board.

Claims (1)

[Scope of utility model registration request] 1. A pair of brush plates whose vertical surfaces on which brush wires are planted face each other, one end of which is rotatably attached to each of the opposite ends of these brush plates, and at least a brush plate extending in a direction perpendicular to the inner side of the opposing brush plates. A dust scraping brush comprising two pairs of links and a pair of fixing members located near both ends of the brush plate and rotatably connected to the other ends of the links. 2. Utility model registration The dust scraper according to claim 1, characterized in that the brush wires planted on the brush plate are planted at an angle with respect to the board surface. brush. 3. Utility Model Registration A dust scraping brush according to claim 1 or 2, characterized in that the link mechanism is provided with a stopper.