JPH06226015A - Disc screen - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a disk screen capable of continuously filtering water while preventing clogging. [Structure] Discs 33 of a required shape are skewed on a disc shaft 32 at a predetermined screen spacing to be integrated.
Further, at least two or more disc shafts 32 with discs
Are arranged in parallel and arranged so that the disks 33 of the respective disk shafts 32 mesh with each other. This makes disk 3
The dust sandwiched between the three is automatically removed by the other disc that rotates while meshing with each other, and continuous operation for a long time is possible without causing clogging of the disc.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention is provided at a water intake of a river or the like, such as from a main trunk line of a confluence conduit to an overflow rainwater trunk, and prevents clogging to continuously filter water. It is about the disk screen made by.

[0002]

2. Description of the Related Art Disc screens installed at intakes of rivers or outlets from the main trunk line of a confluence pipe to the overflow rainwater trunk are arranged on a single shaft with discs at required intervals. However, it is integrated and is rotated as necessary.

[0003]

Therefore, although the floating dust contained in the falling water can be prevented, the dust trapped between the discs cannot be removed, and if it is used for a long time, it will be trapped between the discs. The screen becomes clogged with dust, and it is necessary to inspect or clean the screen regularly or periodically.

An object of the present invention is to arrange disc screens in at least two rows and to prevent the clogging by engaging the discs with each other.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in order to achieve the above-mentioned object, and a disk of a required shape is skewered on a disk shaft at a predetermined screen mesh interval and integrated. The gist is that at least two or more disc shafts with discs are vertically arranged in parallel, and the discs of the respective disc shafts are arranged so as to mesh with each other.

[0006]

[Operation] One unit of disc screen is formed by integrally disposing discs of a required shape on one disc shaft at a predetermined screen spacing, and two or more units are engaged with each disc. Arrange them and install them at the water intake etc. so that they can rotate freely. This prevents floating dust contained in the running water, and dust caught between the discs is meshed with each other and is automatically removed by the other rotating disc. Continuous operation is possible.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The disk screen of the present invention will be described below with reference to the illustrated embodiments. Present Disc Screen 3
Is provided at the intake of a river or the like, or at the outlet from the main trunk of the confluence to the overflow rainwater trunk. In the illustrated embodiment, the main trunk 1 of the confluence falls to the overflow trunk 2. It was installed in the mouth.

The disc screen 3 of the present invention rotatably supports two (or three or more) disc shafts 32, 32 which are vertically parallel to the screen frame 31, as shown in the drawing. A large number of discs (discs) 33 having a predetermined diameter are arranged on the disc 32 at a screen-mesh interval and arranged in a skewed manner, and each disc 33 is fixed to the disc shaft 32 at a predetermined interval. One with a large number of discs 33 fixed to
Two units are used in the embodiment shown in FIGS. In this case, the disks 33 of each unit may have the same diameter as shown or different diameters. However, the discs 33, 33 of each unit are arranged so that the discs of the other unit are slightly inserted between the discs of one unit so as to mesh with each other.

Further, sprocket wheels 34, 34 are fixed to the end portion of the disc shaft 32, and a chain is stretched between the wheels 34, 34 of the opposing disc shafts. One of the disc shafts is sprocketed by a motor 35. It is driven through a power transmission means such as a wheel chain, so that the disk shafts / disks of both units are rotated in the same direction. This motor 35 is used for the screen frame 3
1 is supported by protruding a bracket.

As described above, two or three disk shafts in which a large number of disks are skewered and integrated are arranged in parallel in the vertical direction and incorporated into a screen frame, which is installed at the water intake or the like. In this case, the water level should be below the motor installation position.

As a result, when the runoff water from the main trunk line 1 falls from the outlet to the overflow rainwater trunk line 2, it flows through the rotating disc screen, so that floating dust in the runoff water is prevented, and moreover, it is trapped between the discs. Since the dust is removed by the other disc meshed with each other, clogging is prevented, and the floating dust further flows down in the main trunk line.

At the position of the disc screen 3,
If the dust discharging means is provided, the dust scraped up by the rotating disc can be discharged to the outside of the trunk of the pipe.

In the embodiment shown in FIGS. 4 to 6, the vertical shaft type is used. This is the same as the horizontal shaft type, in which the disk shafts 32, 32 supported in the vertical direction on the screen frame 31 flow in the main trunk line 1. Are arranged at required intervals along the direction, and a large number of discs 33 are fixed to the respective disc shafts 32 so that the discs of each unit mesh with each other, and a sprocket wheel 34 is fixed to the upper ends of the disc shafts 32, respectively. The chain is stretched around and all the disks are rotated in the same direction by driving the chain by a motor 35.

By making the rotating direction of the disk 33 the downflow direction on the main trunk side, dust and the like in the downflow water is caught on the surface of the disk to prevent the flow to the overflow rainwater main road side and at the same time the main trunk line. The water flows down in the downstream direction along the flow of the flowing water. The water level can be arbitrarily set as long as the motor is not submerged.

[0015]

According to the disk screen of the present invention, at least two disk shafts each having a disk are vertically arranged so that the disk of a required shape is skewed and integrated with the disk shaft at a predetermined screen gap interval. Since they are arranged in parallel and arranged so that the disks of the respective disk shafts mesh with each other, there is an advantage that the disks can be efficiently filtered for a long period of time without being clogged.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a first embodiment of a disc screen of the present invention and is an explanatory view of an embodiment used for a confluence pipe.

FIG. 2 is a vertical sectional side view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view of the second embodiment.

FIG. 5 is a front view of the same.

FIG. 6 is a side view of the same.

[Explanation of symbols]

 1 Main line of confluence pipe 2 Overflow rainwater main line 3 Disc screen 31 Screen frame 32 Disc axis 33 Disc

Claims (3)

[Claims] 1. At least two or more disc shafts with discs are arranged in parallel in the vertical direction, in which discs of a required shape are skewed and integrated with the disc shafts at a predetermined screen gap interval, and A disc screen in which discs of respective disc shafts are arranged so as to mesh with each other. 2. At least two or more disk shafts with discs, which are integrally formed by skewering discs of a required shape on a disc shaft at predetermined screen gap intervals, and at least two or more disc shafts with discs are provided in a confluence pipe. A disk screen characterized in that the disk axes are arranged parallel to each other with the disk axes in the vertical direction, and the disks of the disk axes are meshed with each other. 3. A disk screen, wherein the disk shaft with a disk according to claim 1 or 2 is rotatably supported by a screen frame and is rotated by a drive means.