JP2523308Y2 - Dust removal device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing device used in a water channel such as a sewage treatment plant.

[0002]

2. Description of the Related Art Conventionally, sedimentation basins, drainage stations,
In facilities such as agricultural waterways and sedimentation basins of water purification plants, various types of dust removers are provided to remove contaminants in the water, and an optimal dust remover that meets the conditions of the facility is selected. , To be installed.

[0003] That is, a dust removing screen is disposed at a slant in a plurality of water channels, and an arm that extends and contracts with respect to the dust removing screen is disposed, and a rake is provided at the tip of the arm. And move the rake up and down,
The sieve residue collected by the dust removal screen is scraped off. Then, in the case of a traveling type dust remover, when the dust removal of one channel is completed, the rake is moved in the width direction of the channel to perform dust removal of the other channel, and passes through the partition wall that partitions between the channels. (See Japanese Utility Model Publication No. 61-31061).

FIG. 2 is a schematic view of a conventional arm retractable dust removing apparatus. In the figure, 11 is a dust removing device, 12 is a dust removing screen disposed in a water channel, and 13 to 15 are relatively slidable arms. The arm 1
3, sprockets 16 and 17 are attached to both ends,
A chain 18 is stretched over the sprockets 16 and 17. The sprocket 2 is provided at both ends of the arm 14.
0 and 21 are attached, and a chain 22 is stretched over the sprockets 20 and 21.

The chain 18 and the arm 14, the chain 22 and the arm 13, and the chain 22 and the arm 15
The first motor 2 fixed at a predetermined position between the first motor 2 and the upper motor 2
3 is driven and the sprocket 16 is rotated to retract the arm 14 into the arm 13 and to retract the arm 15 within the arm 14 or conversely move the arm 14 from within the arm 13 to the arm 14. It can be extended from inside. Therefore, the arm 15
The rake 25 disposed at the tip of the first motor 23
Can be moved up and down by driving.

Reference numeral 26 denotes a support shaft for swingably supporting the arm 13, and reference numeral 27 denotes an extruding device for swinging the dust removing device 11 to engage and disengage the rake 25 with respect to the dust removing screen 12. Driven by a second motor.
On the other hand, there is provided a device in which a dust removing device itself is slid to move a rake up and down (Japanese Utility Model Publication No. 56-2601).
No. 4).

FIG. 3 is a schematic view of a conventional slide type dust removing apparatus. In the figure, 31 is a dust remover, 32 is a rail for moving the dust remover 31 in the width direction of the water channel, 3
Reference numeral 3 denotes a carriage that moves on the rail 32. 12 is a dust screen arranged in a waterway, 34 is a frame arranged on the carriage 33, 35 is the dust screen 1
2 is a main body of the dust remover extending obliquely along 2 and moving forward and backward relative to the frame 34. A rack and a pinion are provided in the frame 34, and the pinion is
The main body 35 is rotated by a motor 36, and the main body 35 is attached to the frame 34 via a rack attached to the main body 35.
Can move forward and backward.

Reference numeral 39 denotes a rake, and the second motor 3
By driving the shutter 8, it moves forward and backward with respect to the dust remover main body 35, and also has a swing mechanism, so that it has a dust removing function.

[0009]

However, in the conventional dust removing device, in the case of the arm retractable type, the first motor 23 is disposed on the top of the dust removing device 11, so that the first motor 23 and the like are not provided. Inspection of the drive unit needs to be performed at a high place, and workability is poor. Further, an extruding device 27 is provided for engaging and disengaging the rake 25 with respect to the dust removing screen 12, and the extruding device 27 swings the entire dust removing device 11. Resulting in. Further, since the mechanism for extending and contracting the arms 13 to 15 is supported only by the support shaft 26, it is difficult to balance the weight, it is easy to induce vibration and noise, and in a preferable state from the viewpoint of stable operation. Absent.

In the case of the slide type, the first motor 36
By rotating the pinion, the dust remover main body 35 is moved forward and backward with respect to the frame 34 by a rack attached to the dust remover main body 35. In this case, rake 3
It is necessary to move not only 9 but also the whole dust remover main body 35 including the second motor 38, which complicates the structure.

In addition, both the arm telescoping type and the sliding type require two motors, which increases the cost. The present invention solves the problems of the above-mentioned conventional dust removing apparatus, improves the working efficiency when inspecting the driving unit, has good installation properties, can perform stable operation, and has a structure. An object of the present invention is to provide a dust removing device that can be simplified and can reduce costs.

[0012]

For this purpose, the dust removing apparatus according to the present invention is provided so as to be movable between a plurality of water passages and to remove sieve residue from a dust removing screen provided in each water passage. Has become. Therefore, a fixed side frame, a slide frame disposed movably relative to the side frame, driving means for moving the slide frame up and down, and a pair of It has a sprocket and a chain stretched between the sprockets and fixed at one point to the side frame.

[0013] Then, a rake is attached to the chain and moves up and down together with the slide frame to scrape sieve residue from the dust removal screen. The rake opens at an upper limit position of the slide frame and closes at a lower limit position.

[0014]

According to the present invention, the side frame fixed as described above, the slide frame movably disposed relative to the side frame, and the driving means for moving the slide frame up and down. And a pair of sprockets attached to the slide frame, and a chain stretched between the sprockets and fixed at one point to the side frame.

Then, a rake is attached to the chain. Therefore, when the slide frame is moved up and down by the driving means, the rake moves up and down together with the slide frame to take the upper limit position and the lower limit position. The rake opens at the upper limit position of the slide frame, closes at the lower limit position, scrapes the screen residue from the dust removing screen, and drops the screen residue scraped at the upper limit position into the hopper.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a main part of a dust removing device showing an embodiment of the present invention, FIG. 4 is a plan view of the dust removing device showing an embodiment of the present invention, FIG. 5 is a side view of the dust removing device showing an embodiment of the present invention, FIG. 6 is a front view of a main part of a dust removing device showing an embodiment of the present invention, and FIG. 7 is a diagram showing an example of a guide rail.

In the figure, reference numerals 40 to 42 denote channels formed on the downstream side in the sand basin, 43 to 45 denote inflow gates, 46 to 46.
Reference numeral 48 denotes a dust removing screen disposed in the water channels 40 to 42. Reference numerals 51 and 52 denote rails extending over the water passages 40 to 42, 53 denotes a truck movably disposed on the rails 51 and 52, and 54 denotes a dust removing device disposed on the truck 53.

Reference numeral 61 denotes a carry-out machine for carrying out the screen residue removed from the dust removing screens 46 to 48 by the dust removing device 54;
62 is a container for accommodating the sieve residue, 63 is the container 62
It is a lifting machine for lifting. 65 is a dust remover body,
Reference numeral 66 denotes a hopper for receiving the sieve residue removed by the dust removing device 54 and sending it to the unloader 61. Next, the dust remover body 65 will be described.

Reference numeral 71 denotes a side frame of the main body 65 of the dust remover.
, And extends above the dust screens 46 to 48 and is disposed above a partition wall that separates the adjacent water channels 40 to 42. Reference numeral 72 denotes a slide frame, which is provided so as to be relatively movable along the side frame 71.

For this purpose, a guide roller 74 rotatably supported in the side frame 71 is provided to support and guide the slide frame 72.
Then, a rack 75 is attached to the slide frame 72, and a pinion 76 is provided in the dust removal device 54,
It meshes with the rack 75. The pinion 76
Is disposed near the lower end of the side frame 71, and the motor 7
7 driven.

Reference numeral 79 denotes a first sprocket attached to the upper end of the slide frame 72, and reference numeral 80 denotes a second sprocket attached to the lower end of the slide frame 72. The first sprocket 79 is located between the first and second sprockets 79, 80. A chain 81 is stretched. And the chain 81
Is fixed to the side frame 71 at a point A near the lower end of the side frame 71. Therefore, when the motor 77 is driven to rotate the pinion 76, the slide frame 72 moves up and down together with the rack 75.

Reference numeral 83 denotes the dust removing screens 46 to 4.
8 is a rake for removing sieve residue from the chain 8
At point B inside 1, it is connected to the chain 81 via the attachment 84. The slide frame 7
Since the point B inside the chain 81 moves when the 2 moves up and down, the rake 83 moves up and down together with the point B.
Then, with the rake 83 moved to the upper limit position together with the slide frame 72, the dust removing device 54 is moved to the
42 can be moved in the width direction, and the rake 83 can scrape off the sieve residue while being moved to the lower limit position.

The rake 83 has a claw portion 83a for scraping off sieve residue, and a first arm 83 for supporting the claw portion 83a.
b, a shaft 83c forming the swing center of the rake 83,
And a second arm 83d extending from the shaft 83c in a direction opposite to the first arm 83b. And
The second arm 83d is provided with a first guide roller 85 at a position corresponding to the shaft 83c and a second guide roller 86 at a position separated from the first guide roller 85.

On the other hand, the slide frame 72 is provided with guide rails 88 for guiding the first and second guide rollers 85 and 86, and the chain is moved as the slide frame 72 moves up and down. When 81 moves, the first and second guide rollers 85 and 86 are guided by the guide rail 88 and move up and down. The guide rail 8
The rake 83 has a shape that allows the rake 83 to be opened and closed, and the first and second guide rollers 85 and 86 move along the guide rail 88 to move the rake 83 up and down and open and close. Can be done. Therefore, the guide rail 88 has a shape as shown in FIG.

That is, the guide rail 88 has long side portions 88 a and 88 b extending along the slide frame 72.
And a closed loop portion composed of short side portions 88c and 88d connecting the long side portions 88a and 88b at the lower end and the upper end, and a protruding portion 88 is provided at the lower end and the upper end of the long side portion 88a.
e, 88f. The short side portion 88d and the long side portion 8
A one-way locking piece 91 is provided at the junction of 8a.

When the motor 77 is driven to rotate the pinion 76 to move the slide frame 72 downward, the first and second guide rollers 85 and 86 move downward along the long side portion 88a of the guide rail 88. Moving. At this time, the first arm 83 as rake 83 is shown in a state P ₁
b is lifted. Subsequently, the first guide roller 85 reaches the branch point between the short side portion 88c and the protruding portion 88e.
to go into. At that time, the second guide roller 86 as shown in the state P ₂ enters into the short side portion 88c, the rake 83 is closed by its own weight.

[0027] At this point, the reverse stop the motor 77 once, the first guide roller 85 along the long side portion 88a, so that the second guide roller 86 is shown in a state P ₃ along the long side portion 88b To move upwards. At this time, the rake 83 scrapes off the sieve residue from the dust removal screens 46 to 48 in the closed state. Subsequently, a second guide roller 86 is moved as shown in the state P ₄ along a shorter side portion 88d, the rake 83 is opened gradually. The second guide roller 86 is shorter side portion 88d and the long side portions 88a projecting portions as shown in the state P ₅ via disposed a one-way locking pieces 91 in the confluence of 8
Enter 8f. At this time, the screen residue scraped in the state P ₃ is placed on the upper part of the unloading chute 101 (FIG. 1) in the state P ₃
The unloading chute 10 by a scraper (not shown)
1 is scraped off.

As a result, the rake 83 returns to the initial position and one operation ends. When the rake 83 is to be moved downward again, the first and second guide rollers 85 and 86 are required.
Moves downward along the projecting portion 88f. The first guide roller 85 moves down the long side portion 88a as it is via the junction of the short side portion 88d and the long side portion 88a. The second guide roller 86 tries to enter the short side portion 88d at the junction, but is blocked by the one-way locking piece 91 and enters the long side portion 88a similarly to the first guide roller 85.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and these are not excluded from the scope of the present invention. For example, in the above embodiment, rake 8
3. A description is given of a traveling type dust remover having a structure in which the slide frame 72 and the like can be stored on a pond, and the advantages of its functions are utilized. However, the present invention is also applied to a stationary dust remover installed for each water channel. be able to.

[0030]

As described above in detail, according to the present invention, a fixed side frame, a slide frame movably disposed relative to the side frame, and a slide frame are provided. It has a drive means for moving up and down, a pair of sprockets attached to the slide frame, and a chain stretched between the sprockets and having one point fixed to the side frame.

When a rake is attached to the chain and the slide frame is moved up and down by the driving means, the rake moves up and down together with the slide frame to take the upper limit position and the lower limit position. The rake opens at the upper limit position of the slide frame, closes at the lower limit position, scrapes the screen residue from the dust removing screen, and drops the screen residue scraped near the upper limit position into the hopper.

Since the slide frame and the rake can be moved up and down and the rake can be opened and closed only by the driving means, the structure can be simplified and the driving means can be arranged near the lower end of the side frame. Therefore, work efficiency such as inspection of the driving means is improved. Also,
Since the slide frame is disposed so as to be relatively movable with respect to the side frame, the installation property is good and stable operation can be performed.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a dust removing device showing an embodiment of the present invention.

FIG. 2 is a schematic view of a conventional arm retractable dust remover.

FIG. 3 is a schematic view of a conventional slide-type dust removing device.

FIG. 4 is a plan view of the dust removing apparatus according to the embodiment of the present invention.

FIG. 5 is a side view of the dust removing apparatus according to the embodiment of the present invention.

FIG. 6 is a front view of a main part of the dust removing apparatus according to the embodiment of the present invention.

FIG. 7 is a diagram illustrating an example of a guide rail.

[Explanation of symbols]

 40-42 Water channel 46-48 Dust removal screen 54 Dust removal device 71 Side frame 72 Slide frame 77 Motor 79 First sprocket 80 Second sprocket 81 Chain 83 Rake

Claims (1)

(57) [Scope of request for utility model registration] 1. A traveling type or a stationary type dust removing device which is disposed movably between a plurality of water passages and removes sieve residue from a dust removing screen disposed in each of the water passages, wherein: a) a fixed side frame; (b) a slide frame movably disposed relative to the side frame; (c) driving means for moving the slide frame up and down; A pair of sprockets attached to the slide frame; (e) a chain stretched between the sprockets and having a point fixed to the side frame; and (f) attached to the chain, and vertically with the slide frame. (G) opening the rake at the upper limit position of the slide frame and moving the rake to the lower limit position Filtration apparatus characterized by having a stomach close means.