JPH1121856A - Dust removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust removing device which can be installed in a water channel which requires it and at any requisite time and can meet the water supplying/draining functions in good economy. SOLUTION: The body 10 of a dust removing machine is structured so that a bar screen 16 stretching up and down within a water channel 40 is supported between a pair of frames 12 and a scrape-up piece 18 is installed in such a way as capable of traveling as creeping on the front surface of the bar screen 16. The machine body 10 is set removably in the water channel by the first supporting mechanism S1 to support the frame 12 outside the water channel and the second supporting mechanism S2 to support the frame 12 inside the water channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine for removing dust and coarse solids caught by a bar screen by moving a rake or other trash-raising piece along the front surface of a bar screen provided in a waterway. The present invention relates to a dust removing device that is designed to remove the dust.

[0002]

2. Description of the Related Art For example, in a pumping station for taking in running water, it is necessary to capture coarse dust and protect the pump. For this reason, a suction device provided with a bar screen and a circulating up-and-down rake is provided with a dust removing device. The trash that has been deposited on the screen is continuously scraped up and removed by a rake.

In the case of agricultural water, city drainage, river water intake, etc., a common pump is used for water supply, drainage, and water intake, and the suction / discharge direction of the pump is switched as needed to change the water flow direction of the water channel. You may be doing so.
In this case, since the dust removing device is provided in the water channel before and after the pump station, the dust removing device located in the water channel on the discharge side of the pump includes:
Water flows from the back toward the front. Therefore, dust is deposited on the back surface of the bar screen and the dust removing device does not function effectively, and the dust that has been deposited on the bar screen becomes an obstacle to flowing water and causes water channel loss.

[0004] Therefore, in order to lift the dust remover on the side where water flows from the back to the front, the upper end of the dust remover is swingably supported on the water surface. The part that locks or the dust remover
There has been proposed a device in which a main screen (bar screen) installed in a waterway can be lifted and lowered in a direction along a dust trapping surface, and the entire dust remover is lifted above the water surface integrally with a vanguard screen.

[0005]

However, in the above-mentioned conventional dust removing apparatus, there is a problem that the equipment becomes large-scale and that it is too expensive to be installed permanently. In addition, it is conceivable that a drainage pump facility or small-scale drainage pump station equipped with a portable pump may be equipped with a cheap screen for scratching, but it is not possible to scrape up garbage only with a screen for scraping. There was also a problem.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a dust removing device which can be installed in a required water channel when needed, and which can satisfy the water / drainage function more economically.

[0007]

According to the first aspect of the present invention, a bar screen extending vertically in a water channel is supported between a pair of frames, and a scraping piece can run freely along the front surface of the bar screen. A dust remover main body, wherein the dust remover main body is detachably installed in the water channel by a first support mechanism that supports the frame outside the water channel and a second support mechanism that supports the frame inside the water channel. It is a dust removing device characterized by being performed.

[0008] Thus, the dust remover body is stably supported by the two support mechanisms inside and outside the water channel to perform a smooth dust removal operation, and is easily installed and removed by a truck lane, a hoist crane, or the like.

In the invention according to a second aspect, the main body of the dust remover is installed so that an upper portion thereof is inclined downstream in the water channel, and the second support mechanism is provided along the inclination of the main body of the dust remover. The dust removing device according to claim 1, wherein the dust removing device has an inclined support surface. Thus, the support is stably supported by the support surface, and the main body is moved up and down by using the support surface as the guide surface, so that the loading / unloading operation is stably performed. Such a support surface may be provided only on the rear side of the dust remover main body, and may not be supported on the front side, or may have a support function of preventing rattling.

The invention according to claim 3 is the dust removal apparatus according to claim 1, wherein the second support mechanism has a support member attached to both side walls of the water channel. Such a support member is usually installed so as to be embedded in a channel wall hardened with concrete or the like, and is formed of a material having predetermined strength and corrosion resistance.

According to a fourth aspect of the present invention, in the dust removing apparatus according to the third aspect, the support member is formed of a hollow, L-shaped, H-shaped, or groove-shaped member. is there. As a result, a structure that is lightweight and has strength can be obtained.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dust removing apparatus according to an embodiment of the present invention will be described below with reference to FIGS. In this dust removing apparatus, the dust remover main body 10 is supported and attached by a support mechanism formed in the water channel 40. Dust remover body 1
Numeral 0 denotes a support beam 14 extending in the horizontal direction between a pair of left and right frames 12 and a plurality of vertically extending main screens (bar screens) supported by the support beam 14.
16 and a rake (scraping piece) 18 that is arranged along the front surface of the main screen 16 so as to be able to travel around. The main parts such as the frame 12 of the dust remover main body 10 are formed of an elastomer having light weight, low vibration and high corrosion resistance, but may be a steel material or the like.

As shown in FIG. 3, the rake 18 is formed with a plurality of rake claws 18a projecting between the main screens 16.
And rake chain 22 running in apron 20 is fixed to guide roller 24. Rake chain 22
Is run over a rake sheave 30 attached to both ends of a drive shaft 28 of a drive device 26 installed on the top of the frame 12. The driving device 26 has a speed reducer and a motor, and has a take-up unit 34 that adjusts the position of the driving shaft 28 to adjust the tension of the rake chain 22.

The dust remover main body 10 is supported on a side wall 46 constituting the water channel 40 by two upper and lower support mechanisms S ₁ and S ₂ . The first support mechanism S ₁ is a pair of support legs 32 provided on the upper outer side of the frame 12, the lower end surfaces 32 a of which are brought into contact with the top surfaces 44 of the side walls 46 constituting the water channel 40. 12 are supported. Second support mechanism S
₂ are front and rear support members 50, 5 provided on the inner surface of the side wall.
2.

The front support member 50 is mounted so as to protrude from the inner surface of the side wall 46 into the water channel 40, and the rear support member 52 is provided so as to extend along the direction of the frame of the dust remover main body 10. It is attached to the inner surface. As shown in FIG. 2, when the dust remover main body 10 is installed such that the lower surface of the support leg 32 is in contact with the upper surface 44 of the side wall 46, the support members 50 and 52
Are arranged such that the front and rear surfaces thereof contact these support members 50 and 52. The dust remover main body 10 is mainly supported by a rear support member 52, and the front support member 50 mainly performs an action to prevent rattling.

The support members 50 and 52 are formed of an appropriate material such as steel in consideration of strength, corrosion resistance, and the like. In this embodiment, each of the support members 50 and 52 is formed of a hollow member. The cross section is L-shaped, H-shaped, groove-shaped, etc.
It may be formed in any shape. In addition, a front screen (bar screen) 48 is provided on the bottom surface 42 of the waterway 40.
Is the front surface (upstream side) of the main screen 16 of the dust remover main body 10.
It is fixed to be located at.

Next, the operation of the dust removing device configured as described above will be described. When the dust remover main body 10 is installed in the water channel 40, the dust remover main body 10 is hung by a hanging tool 54 (see FIG. 1) such as a chain using a truck crane or a hoist crane, and the lower end of each frame 12 is supported by a support member. 5
Lower so that it is inserted between 0,52. Further, the dust remover main body 10 is lowered using the support members 50 and 52 as a guide until the lower surface 32 a of the support leg 32 abuts on the top surface 44 of the side wall 46. As a result, the main body 10 of the dust remover is mainly supported by the support legs 32 and the rear support member 52, and the front support member 50 suppresses the forward displacement and is fixed stably.

When the dust remover body 10 is fixed, the water passage 40
Underwater debris flowing in the direction of arrow C is captured by the main screen 16 and the avant-garde screen 48. When the driving device 26 is driven in this state, the rotating power is
Transmitted to the rake chainwheel 30 via the
2 circulates in the direction of arrow B in FIG. As a result, the refuse captured by the main screen 16 is removed from the rake 1
8 and conveyed upward, and the apron 2
After passing 0, it is discharged to a carry-out device (not shown) at a reversal point.

When the dust remover main body 10 is lifted, the driving device 26 is stopped, and then a hanging member 54 is attached to the upper end of the dust remover main body 10, and a hook such as a truck crane or a hoist crane is hooked on the suspending member 54. Arrow D in FIG.
In the direction of. Thereby, each frame 12 of the main body 10 of the dust remover is slid along the guide pipes 50 and 52 fixed to the side wall 46 of the water channel 40 to thereby move the main body 10 of the dust remover main body 10.
Pull upwards.

According to this embodiment, the dust remover body 10
Are stably supported in the water flow by the support members 50 and 52, and the dust removing action is performed smoothly, and the attachment / detachment to / from the water channel 40 is facilitated, so that the water channels having the same water channel width can be easily shared. it can. Therefore, it can be widely adopted as a screen equipment such as a drain pump. In this case, it is possible to easily share the water channels having different water depths by appropriately setting the support positions of the _two support mechanisms S ₁ and S ₂ .

[0021]

As described above, according to the present invention,
The dust collector body is stably supported by the support member fixed to the water channel side wall while facilitating the attachment and detachment of the dust collector body. Cost can be reduced.

[Brief description of the drawings]

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

FIG. 2 is an overall vertical sectional view of the same.

FIG. 3 is a cross-sectional view of a main part along line AA of FIG. 2;

FIG. 4 is a perspective view showing a state where the support member is fixed to the side wall of the water channel.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Dust remover main body 12 Frame 16 Main screen (bar screen) 18 Rake 22 Rake chain 24 Guide roller 26 Drive device 30 Rake sprocket 32 Support leg 40 Waterway 42 Waterway bottom surface 46 Waterway side wall 48 Front screen (bar screen) 50, 52 Support Member S ₁ , S ₂ support mechanism

Continuing on the front page (72) Inventor Kiyoshi Kobayashi 11-1 Haneda Asahimachi, Ota-ku, Tokyo Ebara Corporation (72) Inventor Mitsuya Higashikura 2470 Takaokacho, Suzuka-shi, Mie EBARA Koki Co., Ltd.

Claims (4)

[Claims] 1. A dust remover body which supports a bar screen extending vertically in a water channel between a pair of frames, and has a scraper piece movably arranged along a front surface of the bar screen, wherein the dust remover body has A dust removing device which is detachably installed in the water channel by a first support mechanism that supports the frame outside the water channel and a second support mechanism that supports the frame inside the water channel. 2. The dust remover main body is installed so that an upper part is inclined downstream in a water channel, and the second support mechanism has a support surface inclined along the inclination of the dust remover main body. The dust removal device according to claim 1, wherein: 3. The system according to claim 1, wherein the second support mechanism has a support member attached to both side walls of the water channel.
3. The dust removing device according to 1. 4. The support member has a hollow cross section, an L shape, and an H shape.
The dust removing device according to claim 3, wherein the dust removing device is formed of a shape or a groove.