JP2000273845A - Trash removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the conveyance of the trash from scraping a trash onto a water channel side by a single drive mechanism. SOLUTION: A screen 12 having multiporous collecting faces 12a facing a side face and a bottom face of a water channel 1 and an apron 16 which is continuously provided with the screen 12 and leads to a predetermined trash recovery vessel 18 on a side of the water channel are provided. The screen 12 is arranged on the downstream side of a bulkhead 2, and a water stop wall 20 is attached to the downstream side of the screen 12 so that water flows down onto the downstream side through the catching faces 12a of the screen 12. A rake 14 is turned and moved peripherally in the direction orthogonal to the longitudinal direction of the water channel 1, and the rake 14 is moved along the catching faces 12a and the apron 16 during peripheral turn and travel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing apparatus for removing dust such as algae and grass clumps flowing through a waterway by scavenging the dust with a rake while capturing the dust with a screen.

[0002]

2. Description of the Related Art Conventionally, dust such as algae and grass clumps in running water has been captured by a screen provided in a waterway, and the captured trash has been scooped up by moving a rake along the screen. A dust removing device adapted to remove the dust is generally known.

FIG. 5 shows a rotary rake type dust remover which is a kind of such a dust remover. This device includes a screen 5 interposed across the width of the water channel 50.
2, an apron 54 connected to the upper part, a plurality of rakes 56 for scraping dust, a driving mechanism of the rake 56, and a drive type conveyor 58 for transporting the scraped dust to the side of the water channel. have. The driving mechanism is a motor 60
, And is configured to move the rake 56 around in the vertical direction. Then, while the dust is captured by the screen 52, the rake 56 is moved around by the operation of the motor 60, and the rake 56 is raised along the surface of the screen 52 during this movement, so that the captured dust is removed. Is scraped up along the screen 52 and the apron 54, and dust is introduced into the conveyor 58 from the upper end of the apron.

[0004]

By the way, in the above-mentioned conventional dust removing apparatus, a mechanism for scraping the dust caught by the screen 52 above the water channel 50 as described above;
Although a mechanism (conveyor 58) for further transporting the scraped garbage to the side of the waterway is provided, in consideration of space saving, cost reduction, or improvement in maintenance, etc., the garbage is moved from the garbage to the side of the waterway. It is desirable that the unloading can be performed by a unit-based mechanism.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a dust removing apparatus capable of performing a single mechanism from the scraping of dust to the transport of dust to the side of a water channel. It is an object.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a rake-type dust removing apparatus which scavenges and removes dust flowing in a water channel by a screen while catching the dust by a screen. A screen having a porous capture surface substantially parallel to the screen, a guide member connected to the screen and reaching a predetermined location on the side of the water channel, and a flow path for flowing running water downstream through the capture surface of the screen. And a moving means for moving the rake in a direction orthogonal to the longitudinal direction of the water channel and moving the rake along the capturing surface and the guide member during the orbital movement. (Claim 1).

According to this device, dust is captured when running water passes through the capturing surface of the screen. Then, while the dust is captured in this manner, the rake is moved around, so that the captured dust is scooped up along the catching surface of the screen and the guide member, and from the end of the guide member to the side of the water channel. Is discharged to a predetermined place. In the description of claim 1, "substantially parallel to the longitudinal direction of the water channel" means that the capturing surface extends in parallel with the longitudinal direction of the water channel as a whole, and requires that the capturing surface be strictly parallel. is not.

[0008] In the above dust removing device, the catching surface of the screen is formed to have a U-shaped cross section facing each other over the side and bottom surfaces of the water channel. According to such a shape of the screen, a large water-passing area can be secured, so that dust can be efficiently captured without blocking the water flow.

Further, in the above dust removing apparatus, as the moving means, a pair of motor driven sprockets, an endless drive chain mounted on each sprocket, and the drive chain provided on the screen and the guide member, respectively. And a guide for guiding the rake is provided, and a rake is suspended between the two chains (claim 3). According to this configuration, the rotation of the sprocket causes each chain to move around while being guided along the guide, whereby the rake moves around, and in the process, the rake moves along the capturing surface and the guide member.

[0010]

Embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an example of a dust removing apparatus according to the present invention. The dust removing apparatus 10 shown in these figures includes a screen 12 for capturing dust flowing through the water channel 1 and a rake 14 for scraping the dust captured by the screen 12.
And an apron 16 (guide member) for guiding the dust raked by the rake 14 to the side of the water channel, and a moving mechanism (moving means) for moving the rake 14 around.

The screen 12 is provided on the side surface 1a of the water channel 1.
And a bottom view 1b, and a front view (a longitudinal view of the water channel 1;
In FIG. 1, a band-shaped capturing surface 12 a formed in a U-shape in a U-shape when viewed in a direction perpendicular to the paper surface, and both ends in the width direction of the capturing surface 12 a (both longitudinal ends of the water channel 1; And a flange 12b rising from the section (12). The capture surface 12a is, for example, a porous surface in which a large number of circular or elliptical through holes are formed, thereby allowing passage of flowing water. Note that the capturing surface 12a may be configured by, for example, arranging bars in a lattice shape, or may be configured by a wire mesh.

The screen 12 is disposed downstream of the partition wall 2 protruding into the water channel 1. More specifically, the screen 12 is fixed to the partition 2 via the flange 12b with the edge of the flange 12b along the U-shaped notch 2a formed in the partition 2. A substantially semi-disc water blocking wall 20 is attached to the downstream side of the screen 12, that is, to the flange 12 b on the side opposite to the partition wall 2. A flow path for causing the one flowing water to flow down through the capture surface 12a of the screen 12 is formed. That is, the partition wall 2 and the water blocking wall 20 constitute the flow path forming unit of the present invention.

The apron 16 is, as shown in FIG.
It has a U-shaped cross section having a bottom plate 16a and a flange 16b corresponding to the capturing surface 12a and the flange 12b of the screen 12, respectively, and is supported by the device frame 11 provided above the water channel 1, and One end of the screen 12 (one end in the width direction of the channel; the left end in FIG. 1) so that the flange 16b is flush with the catching surface 12a and the flange 12b of the screen 12. The base end of the apron 16 is continuously provided. The apron 16 extends in a direction perpendicular to the longitudinal direction of the water channel 1, and its tip end reaches, for example, a dust collection container 18 disposed on the side of the water channel.

Although not shown in detail, the rake 14 is formed in a plate shape, and
By moving along the respective surfaces 12a and 16a in a standing posture (see FIG. 3) with respect to the bottom plate 16a of the apron 16 and the apron 16, the dust can be scraped up.

The moving mechanism of the rake 14 is configured as follows. That is, a drive shaft 21 extending in the longitudinal direction of the water channel 1 is rotatably supported on the frame 11, a motor 26 as a drive source is supported, and a motor 2
The chain 28 is mounted over the sprocket 26a mounted on the output shaft 6 and the sprocket 23 mounted on the end of the drive shaft 21. The drive shaft 21 includes
Further, a pair of sprockets 24 are attached at intervals substantially equal to the intervals between the flanges 12b of the screen 12, and endless chains 22 are mounted on the sprockets 24, respectively.
As shown in FIGS. 1 and 4, guide grooves 13, 17 (guides) provided in the capturing surface 12 a of the screen 12, the bottom plate 16 a of the apron 16, and the guide plate 30 fixed to the frame 11 are provided. They are arranged parallel to each other in a mounted state. A plurality of the rakes 14 are suspended between the two chains 22 at a constant interval in the circumferential direction, and each rake 14 is
When the motor 26 operates, its rotational force is transmitted to the drive shaft 21 via the sprocket 26a, the chain 28, and the sprocket 23, and further transmitted to each chain 22 via both the sprockets 24. As a result, each rake 14 orbits integrally with the chain 22 along the guide grooves 13 and 17 in the direction indicated by the broken arrow in FIG. 1, and more specifically, circulates in a direction orthogonal to the longitudinal direction of the water channel 1. It moves (circulates around the axis extending in the longitudinal direction of the water channel 1 around its axis), and moves along the screen 12 and the apron 16 during this movement.

Although not shown in detail, the guide plates 28 are provided in parallel with the longitudinal direction of the water channel 1 at intervals corresponding to the intervals of the capturing surfaces 12a of the screen 12.
The screen 12 is connected to the other end, that is, the end opposite to the connection point of the apron 16.

According to the dust removing apparatus 10 configured as described above, if the running water contains dust, when the running water passes through the catching surface 12a of the screen 12,
Is captured by

While the dust is thus captured, the rake 14 is driven, whereby the dust captured by the screen 12 is scooped up and carried out to the dust collection container 18. . That is, the rake 14 moves around by the operation of the motor 26, and during this movement, the rake 14 moves along the catching surface 12a of the screen 12 and the bottom plate 16a of the apron 16, so that the trapped dust is removed from the screen 12. And it is scraped to the side of the water channel 1 along the apron 16 and introduced into the refuse collection container 18 from the end of the apron 16.

As described above, in the dust removing apparatus 10, the dust caught by the screen 12 is scraped directly to the side of the water channel 1 by driving the rake 14 and introduced into the dust collecting container 18, so that the dust is scraped along the screen. There is no need for a dedicated mechanism (conveyor) to carry the garbage to the side of the waterway. Therefore, as compared with a conventional dust removing device of this kind which requires two mechanisms, a mechanism for scraping up dust and a mechanism for carrying out dust, a single mechanism is sufficient, so that space saving and cost reduction of the device are required. And maintenance can be improved.

In the above apparatus, the screen 1
The two capturing surfaces 12a are formed in a U-shape in a front view facing the side surface 1a and the bottom surface 1b of the water channel 1, for example,
It may be configured to face only the side surface of the water channel 1 or may be configured to face only the bottom surface of the water channel 1,
The specific shape and the like may be appropriately selected according to the shape and the flow rate of the water channel 1 so that dust can be captured while flowing water is transmitted. However, in the case of the water channel 1 having a rectangular cross section, it is desirable that the trapping surface 12a be a U-shape facing the side surface 1a and the bottom surface 1b of the water channel 1 as in the embodiment. In this case, since the water passage area is secured wider than the provision of the catching surface 12a facing only the side surface or the bottom surface of the water channel 1, there is an advantage that dust can be satisfactorily captured without stopping running water. There is.

[0022]

As described above, the present invention relates to a rake type dust removing apparatus, which has a screen having a porous trapping surface substantially parallel to the longitudinal direction of the water channel, and a screen provided continuously with the screen and provided on the side of the water channel. A guide member is provided to reach a predetermined location, and while catching dust by passing flowing water through the catching surface, the dust is scraped up while moving around the rake along the catching surface and the guide member to lift the dust and to the side of the channel. Is carried out to a predetermined place, so that the dust caught by the screen can be scooped and the scavenged dust can be carried out to the side of the water channel by a single mechanism. Therefore, as compared with a conventional dust removing device of this type which requires two mechanisms, a mechanism for scraping up dust and a mechanism for carrying out dust, the space saving and cost reduction of the device can be achieved, and the maintenance can be performed. Performance can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a dust remover according to the present invention.

FIG. 2 shows an embodiment of a dust removing apparatus according to the present invention.
It is AA sectional drawing of.

FIG. 3 is a diagram showing an embodiment of a dust removing apparatus according to the present invention.
It is BB sectional drawing of.

FIG. 4 is a perspective view (partially sectional view) showing a configuration of a screen and an apron.

FIG. 5 is a perspective view showing a conventional dust removing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterway 2 Partition wall 10 Dust remover 12 Screen 12a Capture surface 14 Rake 16 Apron (guide member) 18 Dust collection container 20 Water stop wall 22 Chain 23,24,26a Sprocket 26 Motor

Claims (3)

[Claims] 1. A rake-type dust removing device for scavenging dust removed by a rake while catching dust flowing in a water channel by a screen, comprising: a screen having a porous capturing surface substantially parallel to a longitudinal direction of the water channel; A guide member connected to a predetermined location on the side of the water channel, a flow path forming means for forming a flow path so that flowing water flows down through the catching surface of the screen, and a longitudinal direction of the water path. Moving means for moving the rake in a direction perpendicular to the rake and moving the rake along the catching surface and the guide member during the circulating movement. 2. The screen as the capture surface,
The dust removal device according to claim 1, further comprising a U-shaped trapping surface that faces each other across the side surface and the bottom surface of the water channel. 3. The moving means includes a pair of motor driven sprockets, an endless drive chain mounted on each sprocket, and a guide provided on the screen and the guide member for guiding each drive chain. The dust removing device according to claim 1 or 2, wherein the rake is provided between the two chains.