JPS625057Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a dust removal device for a screen stretched outside a water intake tower constructed in a reservoir or the like.

Conventionally, there are various types of surface water intake or selective water intake facilities constructed in dams, reservoirs, etc.
Surface water intake systems with cylinder gates are well known. In water intake equipment, a water intake tower is generally installed underwater, a water intake gate is provided inside the water intake tower, and a dust removal screen is provided outside the water intake tower. Currently, dust removal from the water intake tower screen is carried out using a boat or pontoon.

This invention was made in view of the above-mentioned current situation, and the purpose is to obtain a dust removal device that has a simple configuration and can work efficiently.

In other words, in this invention, a floating body is arranged so as to move up and down following the water level, surrounding a water intake tower with a screen installed on the outside, and a dust removal trolley runs approximately parallel to the screen surface on the top surface of the floating body. It is characterized in that a rail is mounted on it, a dirt collection is provided on the dust removal cart, and a dust removal rake is arranged on the screen side so that it can be raised and lowered. When using the dust removal device of this invention to remove debris near the water surface hanging on the screen, the dust removal truck is run with the dust removal rake lowered and stopped at a desired dust removal start position, and then the dust removal rake is moved upward. When the screen is rotated, the garbage hanging on the screen is scooped up, the dust removal rake stands up, the scooped up garbage is dropped onto the dust removal cart, and it can be manually raked into the garbage collection. Once the garbage has been dropped, the dust removal rake is rotated downward to a hanging state, and the dust removal cart is then moved by approximately the length of the rake, which is the width of the rake, and the above-mentioned dust removal work can be carried out. . In this way, the garbage hanging on the screen is scooped up and dropped onto the dust removal truck, and the garbage stored in the dust removal truck is transferred to a carrier boat attached to the side of the floating body and transported to a predetermined location. It is only necessary to dispose of it (incineration, etc.).

Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.

In Figures 1 to 4, reference numeral 1 denotes a water intake tower, which includes a plurality of columns 5 erected on an underwater foundation 4 in close proximity to an embankment 3 of a dam reservoir 2, etc., and a connecting member 5A connecting these columns. A screen 6 is provided on the outside in the form of a vertical grid so as to surround the entire circumference of the water intake tower 1. In the center of the water intake tower 1, a cylinder gate 9 equipped with a water intake basin 7 that expands and contracts and moves up and down in accordance with the water level, a float 8, etc. is arranged, and the cylinder gate 9 is equipped with a float 8, etc., and the surface water flowing in from the water intake basin 7 is The water is led to a water conduit 10 through the cylinder gate 9 and is discharged therefrom. On the outside of the water intake tower 1, a U-shaped floating body 11 is arranged to surround it, and on the upper surface of the floating body 11 there is a dust removal trolley running rail 12.
is included. Horizontal guide rollers 13 and 14 are rotatably attached to the end surface of the floating body 11 on the side of the embankment body 3, and these guide rollers 13 and 1
4, guide rails 15 are laid on the embankment body 3 in parallel with the water intake tower 1, respectively, and the floating body 11 is guided by the guide rails 15 to move up and down. The dust removal trolley running rail 12 is made of an I-shaped member with upper and lower flanges on the outside, and a member with a protrusion at the center of a flat plate on the inside. It is provided so as to be located inside and outside between the upper and lower flanges of the traveling rail 12.

As shown in FIGS. 3 and 4, each dust removal truck 16 has a groove shape when viewed from the front, and has end plates 16 at its front and rear.
A and 16B are fixed together to form a dust tank 18, and on the screen 6 side, there is a chute 19 extending diagonally upward from the edge thereof and an apron 2 extending downward.
0 is installed. Apron 20 is floating body 11
Bearings 23 that extend downward from the top surface and horizontally support the rotating shaft 22 of the dust removal rake 21 are fixed to the lower ends of both front sides of the apron 20, and a transmission sprocket is attached to the end of the front rotating shaft 20. 24 is wedged. Further, on the front side of the dust removal truck 16, a drive sprocket 25 with a reduction gear mechanism (not shown) is installed.
It is mounted via a drive shaft 26 and a bearing 27, a transmission chain 28 is wound around the sprocket 24 and the sprocket 25, and a rake rotation lever 29 is attached to the drive shaft 26. It goes without saying that the drive shaft 26 may be mechanically driven by a motor or the like.

30 is a fender attached to the outer surface of the floating body 11, 31 is a handrail erected on the outer edge of the floating body 11, and this handrail 31 is partially cut out and removed between the supports 32. A freely adjustable handrail or chain 33 is attached so that when the garbage on the dust removal cart 16 is to be transferred to a ship, the dust removal cart 16 can be positioned in this area and one side of the chain 33 can be removed. There is.

Note that 34 is a dirt receiving member fixed to the rake 21.

According to the first embodiment of this invention, first, the rake rotation lever 29 is positioned at 29A so that each dust removal rake 21 is at the position shown at 21A in FIG.
Move each dust removal trolley 16 to the dust removal start position, stop it, operate the rake rotation lever 29 to bring it to a horizontal position, scoop up the dust from the front of the screen 6, and then move the rake rotation lever 29 to the position indicated by 29B in the figure. When the dust removal rake 21 is raised to the position shown by 21B in the figure by rotating the chute 1
9, the garbage on the rake 21 slides down and moves onto the chute 19, and the garbage is scraped into the garbage reservoir 18 of the truck by manual operation. Next, the dust removal rake 21 is rotated to return to the suspended state 21A, the dust removal cart 16 is moved to that location, and the rake rotation lever 29 is rotated to the position 29A in the same manner as described above. After returning the dust removal rake 21 to the suspended state 21A, the same operations as described above can be sequentially repeated to achieve the intended purpose. In this way, each dust removal trolley 16
When the garbage tank 18 is full of garbage, move it to the place where the chain 33 is installed and remove it from the floating body 1.
All you have to do is shovel the garbage into a carrier (not shown) that is next to 1.

In the first embodiment of this invention, the traveling rail 12 located outside the floating body 11 is made of I-beam steel, and the wheels 17 are located between the upper and lower rail flanges.
There is no need to worry about the machine tipping over, so you can perform dust removal work with peace of mind.

Figure 5 shows a second embodiment of this invention.
The horizontal cross-sectional shape of the water intake pipe 1 is particularly cut out at the corners, and the floating bodies 11 are designed to differ depending on the horizontal cross-sectional shape. and,
This embodiment differs from the first embodiment in that there is only one dust removal truck 16, and the running rail 12 that guides it has curved corners, but the other configurations are exactly the same. The second embodiment is different from the first embodiment in that although the shape of the floating body 11 is slightly different, there is almost no difference essentially, and only one dust removal truck 16 equipped with the dust removal rake 21 is required. The configuration is also simple, and this point has a great effect. The configuration and effects of the second embodiment are not significantly different from those of the first embodiment, so a detailed explanation of the specific embodiment will be omitted.

Since the dust removal device related to this invention has the above-mentioned configuration, it is possible to easily and efficiently remove the dust hanging on the water intake tower screen.
This not only reduces the amount of labor required by workers, but also allows maintenance and inspections to be carried out from above the floating structure, thereby improving water intake efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a partially cutaway schematic front view of the whole, and Fig. 2 is a schematic front view of the first embodiment.
3 is a partially cutaway plan view of the dust removal cart, FIG. 4 is a front view of the dust removal cart, and FIG. 5 is a second embodiment of the present invention, showing the dust removal cart running rail. It is a partially omitted cross-sectional view of a device that can be integrated into one and utilize even one dust removal trolley. 1... Water intake tower, 6... Screen, 11... Floating body, 12... Dust removal trolley running rail, 13, 14...
...Guide roller, 15...Guide rail, 16...
...Dust removal trolley, 17...Wheels, 18...Garbage reservoir, 1
9... Shoot, 20... Apron, 21... Dust removal rake.

Claims (1)

[Scope of utility model registration request] A floating body is arranged so as to move up and down following the water level, surrounding a water intake tower with a screen installed on the outside, and a dust removal trolley running rail is mounted on the top surface of the floating body, which is approximately parallel to the screen surface. A dust removal device for a water intake tower screen in which a dust collection truck is provided with a garbage collection and a dust removal rake is installed on the screen side so that it can be raised and lowered.