JP2003184055A - Dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collector which is easy to assemble. <P>SOLUTION: Members 70 to be guided (a main chain 6 and a rotary roller 50e) of a rake 50, which are provided so as to sandwich a guide rail 80 in between, are guided by the long guide rail 80 which is installed in such a manner as to be vertically extended along a screen 5 crossing a water channel 10, and the surface and backside of which are made to serve as guide surfaces, respectively. Thus, the main chain 6 abuts on the guide rail 80 so that the rake 50 can be prevented from coming into contact with the screen 5, an the rotary roller 50e abuts on the guide rail 80 so that the rake 50 and the screen 5 can be prevented from being too far apart from each other. The guide members 70 are guided by the two guide surfaces of the guide rail 80, so that the fall of the rake 50 in a vertical direction can be regulated and so that the rake 50 can be kept in a scraping attitude. Additionally, the two guide surfaces of the guide rail 80 are made to serve as the surface and backside of the guide rail 80, and a distance between the guide surfaces thereof is easily secured. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover for scraping off screen residue collected on a screen installed in a water channel.

[0002]

2. Description of the Related Art Conventionally, in a water treatment facility such as a waste water treatment plant, screens are used to collect the residues of cloth, paper, vinyl pieces, etc. in the water to be treated, and the collected residues are chain-type dust removal. It is done by scooping with a machine.

As this chain type dust remover, for example, as shown in FIG. 6, a screen 5 is installed in such a manner as to cross a water channel 10 and a screen 5 which is a vertical plate lattice for collecting screen residues in the water to be treated. The endless main chain 6 provided with a plurality of rake members 50 having a shape corresponding to the lattice of the screen 5
A chain-type dust remover 300 that vertically extends along the rake member 50, raises the rake member 50 by orbiting the main chain 6 along an orbit, and scoops up the residue collected on the screen 5 with the rake member 50. It has been known.

The chain type dust remover 300 extends along the screen 5 and is fixed to the side wall of the water channel 10 via a support 85, and the upstream side of the water channel 10 with respect to the chain guide 82 (in the figure). On the lower side), a roller guide 81 extending along the screen 5 and fixed to the side wall of the water channel 10 via a support 84 is provided.
The chain guide 82 contacts the downstream side (upper side in the figure) of the water channel 10 of the main chain 6, while the roller guide 81
Is in contact with the upstream side of the rotary roller 50e installed on the rake member 50.

The chain guide 82 contacts the main chain 6 when the rake member 50 scoops up the residue, and guides the rake member 50 so that the rake member 50 does not contact the screen 5 and wear. Further, the roller guide 81 contacts the rotating roller 50e, and the rake member 5
0 is separated from the screen 5 by a predetermined distance or more, and guides the rake member 50 so that the scraped residue does not fall from this gap. Further, the roller guide 81 and the chain guide 82 guide the rake member 50 while maintaining the scooping posture so that the rake member 50 does not fall in the vertical direction and cannot be scooped up.

[0006]

In such a chain type dust remover 300, the distance between the rake member 50 and the screen 5 and the tilt of the rake member 50 are maintained within a predetermined range to surely scoop up. Therefore, the guide surface of the roller guide 81 for guiding the rake member 50 and the chain guide 8
It is necessary to accurately set the interval between the second guide surface and the second guide surface to a predetermined value. However, with the structure of the chain guide 82 and the roller guide 81 as described above, it is difficult to secure the distance between the guide surfaces, and there is a possibility that a problem may occur in scooping.

The present invention has been made in view of the above problems, and an object thereof is to provide a dust remover which is easy to assemble.

[0008]

The dust remover according to the present invention comprises:
In a dust remover equipped with a rake that can scrape off the residue collected on the screen installed in the waterway and move the rake along the screen to scrape off the residue, it is installed extending along the screen. The rake has long guide rails each having a back surface as a guide surface, and the rake is provided with guided members formed so as to face the front and back surfaces of the guide rail and sandwich the guide rail.

According to the dust remover of the present invention, when the rake moves, the guided member abuts on the guide surface on one side of the guide rail to prevent the rake from contacting the screen. The guided member contacts the guide surface on the other side of the guide rail, thereby preventing the rake and the screen from being separated from each other by a predetermined distance. Further, the guided member is guided by the two guide surfaces of the guide rail, whereby the rake is restrained from falling and the rake scraping posture can be maintained.

Further, since the two guide surfaces of the guide rail which come into contact with the guided member are the front and back surfaces of the guide rail, it is easy to secure the surface distance between the guide surfaces of the guide rail.

Here, it is preferable that the rake is fixed to the endless chain, and the endless chain is revolved on a revolving track extending along the screen.

This prevents the rake from collapsing due to the movement of the chain, and makes it possible to suitably scrape the residue off the rake for each revolution of the orbit.

The rake is provided with a rotating roller facing one guide surface of the guide rail, and the endless chain for fixing the rake is installed so as to face the other guide surface of the guide rail. It is preferable that and form the guided member. This simplifies the structure of the dust remover.

[0014]

DETAILED DESCRIPTION OF THE INVENTION Referring to the accompanying drawings,
A preferred embodiment of the dust remover according to the present invention will be described in detail. In the description of the drawings, the same or corresponding elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 is a schematic side view of a water channel in which the dust remover according to this embodiment is installed, FIG. 2 is a front view of the screen in FIG. 1, and FIG. 3 is a horizontal view near the screen in FIG. FIG.

The water channel 10 is, as shown in FIG. 1, a screen 5 for collecting screen residues in the water to be treated flowing through the water channel 10.
And a dust remover 100 that scrapes and removes the residue collected on the screen 5.

As shown in FIGS. 2 and 3, the screen 5 comprises a plurality of vertically long grid plates 13 which are spaced apart by a spacer 7 at a predetermined interval and are horizontally opposed to each other. The screen 5 traverses the water channel 10, and as shown in FIG. 1, the upper part is slightly inclined to the downstream side of the water channel 10 (the right side in FIG. 1), and partly protrudes above the water surface. As shown in FIGS. 2 and 3, it is fixed to the side wall of the water channel 10 by the mounting member 14 and the side plate 91.

The screen 5 collects the residue of cloth, paper, vinyl pieces, etc. in the water to be treated flowing in from the upstream side (lower side of FIG. 3) between the grid plates 13 and 13, while the residue remains. The untreated water is passed through the gap between the lattice plates 13 and 13 to the downstream side to filter the untreated water.

As shown in FIG. 1, the dust remover 100 is installed on the main chain 6 and an endless main chain 6 that forms an orbit along the screen 5 on the upstream side of the screen 5 (on the left side of FIG. 1). And a plurality of rake members (rakes) 50, which are arranged apart from each other along the main service chain 6 and scoop up the residue along the screen 5 in accordance with the drive of the main service chain 6, and to the upper end of the screen 5. A wiper 8 for removing the removed residue from the rake member 50, and a residue removal device 9 for receiving and removing the removed residue are provided.

The main chain 6 is a pair of lower sprockets 4 which are immersed in the water to be treated and arranged in parallel with the water flow.
And a pair of upper sprocket 3 arranged parallel to the water flow and above the upper surface of the screen and above the water surface, and as shown in FIG. It is arranged.

The upper sprocket 3 is connected to the motor 2 via a drive chain 19 as shown in FIG. Then, the motor 2 orbits the main service chain 6 in the direction in which the rake member 50 close to the screen 5 moves upward (counterclockwise in the drawing).

As shown in FIGS. 3 to 5, the rake member 50 includes a projecting plate 50a projecting so as to face the screen 5 and extending in the width direction of the water channel, and side plates 50c, 50c for fixing the projecting plate 50a so as to sandwich it from both sides. And are equipped with. At the tip of the projecting plate 50a, each grid plate 1 of the screen 5 is
Comb-tooth-shaped claw portion 50 that can be inserted into the gap of 3, 13 for a predetermined length
b is formed.

The above-mentioned main chain 6 is fixed to the side plates 50c, 50c of the rake member 50 via an attachment 50d. Further, on the downstream side of the portion where the main chain 6 is fixed by the side plate 50c of the rake member 50, rotating rollers 50e, 50e rotatable around an axis parallel to the width direction of the water channel are provided at a fixed height of the main chain 6. On the other hand, two are installed vertically spaced apart. The rotating rollers 50e, 50e and the main chain 6 guide the rake member 50 (details will be described later) to be guided member 70.
Are configured.

As shown in FIGS. 3 and 5, the dust remover 100 of this embodiment is sandwiched between the main chain 6 and the rotating rollers 50e, 50e and extends vertically along the screen 5. The guide rail 80 is provided.

As shown in FIG. 3, the guide rail 80 is fixed to a side wall of the water channel 10 via a side plate 91 and vertically protrudes from the side wall between the main chain 6 and the rotary roller 50e. It has a fixed base 83 having an L-shaped cross section that extends vertically along the screen 5.

As shown in FIGS. 3 and 5, a roller guide 81 having a rectangular cross section having a guide surface capable of contacting the rotary roller 50e is provided along the fixed base 83 on the downstream side of the protruding portion of the fixed base 83. A chain guide 82 having a rectangular cross section having a guide surface capable of contacting the main chain 6 is vertically installed along the fixed base 83 on the upstream side of the protruding portion of the fixed base 83. Has been done.

The guide surface of the chain guide 82 contacts the main chain 6 to limit the movement of the rake member 50 to the screen 5, while the guide surface of the roller guide 81 contacts the rotating roller 50e to rake. Limiting the separation of the member 50 from the screen 5. Furthermore, the guide surface of the chain guide 82 and the guide surface of the roller guide 81 guide the main chain 6 and the rotating roller 50e,
The rake member 50 is restricted from falling down.

The distance between the guide surface of the roller guide 81 and the guide surface of the chain guide 82 is set so that the tilt of the rake member 50 falls within a predetermined range.

Next, the operation of the dust remover 100 according to this embodiment will be described.

When the main duty chain 6 is circulated along the circular orbit by the motor 2, the rake member 50 is sequentially raised along the upstream surface of the screen 5, and the screen 5
The residue collected on the rake member 50 is scraped up by the protruding plate 50a of the rake member 50.

At this time, since the rake member 50 is fixed to a chain which is rotatably connected to each other, the rake member 50 approaches or separates from the screen 5 due to the weight of residue, or the rake member. 50 tries to fall in the vertical direction.

However, the rake member 50 is not the screen 5.
When it comes close to, the main chain 6 comes into contact with the guide surface of the chain guide 82 to prevent further approach to the screen 5, and the rake member 50 is prevented from coming into contact with the screen 5 and being worn. .

When the rake member 50 separates from the screen 5, the rotary roller 50e contacts the guide surface of the roller guide 81 to prevent further separation from the screen 5, and the rake member 50 separates from the screen 5 too much. As a result, the scraped off residue is prevented from falling through the gap.

In addition, even if the rake member 50 falls vertically, the main chain 6 and the rotating roller 50e are guided by the guide surface of the chain guide 82 and the guide surface of the roller guide 81, so that Tipping of a predetermined amount or more is regulated, and the rake member 50 is prevented from being scratched and being prevented from being scratched.

Further, in this embodiment, the guide rail 8
Since the guide surfaces of 0 are the front and back surfaces of the guide rail 80, as compared with the conventional case where two guides are installed on the side wall while setting the interplanar distance between the guide surfaces at the construction site, It is easy to secure the distance between the surfaces. Further, the number of parts is reduced, the structure is simplified, and the reliability is improved as compared with the conventional one. Also, the rotating roller 50e
Since the guide surfaces for guiding the main duty chain 6 and the main duty chain 6 are the front and back surfaces, and the rotating roller 50e and the main duty chain 6 can be arranged close to the side wall of the water channel 10, the occupied area of these guided members 70 in the water channel width direction is small. As a result, the width of the screen 5 in the water channel direction becomes wider, and the range in which the residue can be scraped widens.

The dust remover according to the present invention is not limited to the above-mentioned embodiment, but can take various modifications.

For example, the guide rail 80 of the above embodiment.
Instead of this, a long plate-shaped member or the like may be used as the guide rail. In addition, the roller guide 81 and the chain guide 8
Although the guide rail 80 is configured by combining the two and the fixed base 83, these may be integrally molded, and the point is that the guide surfaces are the front and back sides.

In the above embodiment, the guide rail 8
Although 0 is sandwiched between the rotating roller 50e and the service chain 6, it may be sandwiched by two rotating rollers or the like connected to the rake member 50 side (moving side).

Further, the rake member 50 is not limited to be moved by the main service chain 6, but may be a belt or the like.

Further, the screen 5 may be installed obliquely with respect to the water flow direction of the water channel 10 when viewed from above, and in any case, the front and back surfaces in the direction perpendicular to the surface of the screen 5 by the guide rails. Should be used as the guide surface.

[0041]

As described above, according to the dust remover of the present invention, the long guide rails extending along the screen and having the front and back surfaces as the guide surfaces are used to guide these guide surfaces. The guided members of the rakes facing each other are guided.

As a result, when the rake moves, the guided member abuts on one guide surface of the guide rail to prevent the rake from contacting the screen, while the guided member moves on the other side of the guide rail. It is prevented that the gap between the rake and the screen comes into contact with the guide surface of the above and is separated from the predetermined distance. Further, the guided member is guided by the two guide surfaces of the guide rails, the fall of the rake is regulated, and the rake scraping posture can be maintained.

The two guide surfaces of the guide rail are
Since the front and back surfaces of the guide rail are provided, it is easy to secure a surface distance between the guide surfaces of the guide rail, and a dust remover that is easy to assemble is provided.

[Brief description of drawings]

FIG. 1 is a schematic side view of a water channel in which a dust remover of the present embodiment is installed.

FIG. 2 is a front view of the screen in FIG.

FIG. 3 is a horizontal sectional view of the vicinity of the screen in FIG.

FIG. 4 is a rear view of the rake member in FIG.

5 is a view taken along the line I-I of FIG.

FIG. 6 is a horizontal sectional view in the vicinity of a screen of a conventional dust remover.

[Explanation of symbols]

5 ... Screen, 6 ... Main chain (endless chain),
50 ... rake member (rake), 50e ... rotary roller, 7
0 ... Guided member, 80 ... Guide rail, 100 ... Dust remover.

Claims (3)

[Claims] 1. A dust remover comprising a rake capable of scraping off the residue collected on a screen installed in a water channel, and moving the rake along the screen to scrape off the residue, the screen comprising: A long guide rail that is installed along the guide rail and has front and back surfaces as guide surfaces, and the rake is formed so as to face the front and back surfaces of the guide rail and sandwich the guide rail. A dust remover comprising a guide member. 2. The rake is fixed to an endless chain,
The dust remover according to claim 1, wherein the endless chain is revolved around a revolving track extending along the screen. 3. The rake includes a rotating roller facing one guide surface of the guide rail, and the endless chain fixing the rake is installed so as to face the other guide surface of the guide rail. The dust remover according to claim 2, wherein the rotating roller and the endless chain constitute the guided member.