JP3011631U - Filter - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a filter in which dust filtered by a filter can be automatically removed from the filter during a filtering operation and discharged to the outside of the filter. [Structure] A cylindrical filtration tank is divided into an upper chamber and a lower chamber by a partition plate, and a through hole is formed in the partition plate to communicate the upper chamber and the lower chamber, and the through hole has a cylindrical shape. A filter is rotatably provided, a reduction motor is connected to the rotating shaft of the cylindrical filter, a water outlet pipe is connected to the upper chamber, and a water inlet pipe is connected to the lower portion of the lower chamber along the tangential direction of the cylindrical filter tank. To circulate the water in a vortex, and the water entered from the water inlet pipe of the lower chamber is filtered as it passes from the outer surface to the inner surface of the cylindrical filter, and the filtered water is further discharged from the water outlet pipe of the upper chamber. In addition to the above, a dust pipe is connected to the upper part of the lower chamber. [Effect] To provide a filter capable of automatically removing dust filtered by the cylindrical filter from the cylindrical filter during the filtering operation and discharging it to the outside of the filter, which enables long-term continuous operation. You can

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter in which dust filtered by a filter can be automatically removed from the filter during a filtering operation and discharged to the outside of the filter.

[0002]

[Prior art]

 Conventionally, this type of filter removes dust that has been filtered by a filter by discontinuing the filter operation and disassembling the filter, scraping it with a scraper during the filter operation, or removing it to the filter. It is known that a nozzle is installed and water is sprayed toward the filter to wash it off and then the water is removed from the filter and discharged to the outside of the filter.

As a method of installing a nozzle in the above-mentioned filter and spraying water toward the filter to wash it off, the method disclosed in Japanese Utility Model Publication No. 52-31476 and Japanese Utility Model Publication No. 52-31477, which were devised by the present inventor, is disclosed. There is.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional example, the filter is rotated by using a water wheel installed on the rotary shaft of the filter, and water is jetted from the nozzle toward the filter to prevent clogging of the filter. However, when carrying out the above-mentioned conventional example, when trying to rotate the filter using a water wheel installed on the rotating shaft of the filter, the filter initially rotates without difficulty, but if the filter becomes clogged with dust, the filter inside the filter tank Since the water pressure applied to the outer surface is very high, sufficient rotational force cannot be obtained and the initial purpose cannot be achieved.

Further, none of the above-mentioned conventional examples has a function to prevent the filter from being clogged during the filtering operation or to have a function of automatically removing the filter from clogging, so that the filtering operation is frequently performed. It was very troublesome because it had to be stopped and the dust clogged with the filter had to be removed.

The filter of the present invention eliminates the above-mentioned drawbacks of the conventional example, and automatically removes the dust filtered by the cylindrical filter from the cylindrical filter during the filtering operation and discharges it out of the filter. The present invention intends to provide a filter capable of performing the above.

[0007]

[Means for Solving the Problems]

 That is, in the filter of this invention, a cylindrical filter tank is divided into an upper chamber and a lower chamber by a partition plate, and a through hole is bored in the partition plate to connect the upper chamber and the lower chamber to each other. A cylindrical filter is rotatably installed in the hole, a reduction motor is connected to the rotary shaft of the cylindrical filter, a water outlet pipe is connected to the upper chamber, and a tangential direction of the cylindrical filter tank is connected to the lower part of the lower chamber. Water is circulated in a vortex by connecting the water inlet pipes along the pipe, and the water entering from the water inlet pipe of the lower chamber is filtered as it passes from the outer surface to the inner surface of the cylindrical filter, and the filtered water is further filtered in the upper chamber. The feature is that the water is discharged from the water discharge pipe and a dust pipe is connected to the upper part of the lower chamber.

By adopting the above-mentioned configuration, the cylindrical filter of the present invention is arranged such that the raw water entering from the water inlet pipe provided in the lower part of the lower chamber rises from the outer surface of the cylindrical filter in the filter tank. It is pressurized with water pressure into a cylindrical filter and filtered. At that time, since the raw water circulates and rises from the lower part of the cylindrical filter while swirling around it, dust attached to the cylindrical filter also moves to the upper part of the cylindrical filter.

The dust accumulated on the upper part of the cylindrical filter is drawn out from the dust pipe and automatically discharged to the outside of the filter. In this way, in the filter of the present invention, the cylindrical filter is hardly clogged, and continuous and automatic operation is possible.

[0010]

[Action]

 Therefore, according to the filter of this invention, the dust filtered by the cylindrical filter can be automatically removed from the cylindrical filter during the filtering operation and discharged to the outside of the filter, which enables continuous operation for a long time. It is possible to provide a simple filter.

Further, even if the water pressure applied to the outer surface of the cylindrical filter in the filtration tank is changed, the rotation of the cylindrical filter is not hindered and the cylindrical filter is not clogged. Automatic operation is possible.

[0012]

【Example】

 An embodiment of the filter of the present invention will be described in detail below with reference to the drawings.

In FIG. 1 and FIG. 2, the cylindrical filtration tank 1 is divided into an upper chamber 2 and a lower chamber 3 by a partition plate 4, and a through hole 5 is formed in the partition plate 4 to form an upper chamber. 2 communicates with the lower chamber 3.

On the other hand, in the filtration tank 1, a cylindrical filter 6 having a lower end of a rotary shaft 12 supported by a bearing 11 provided at a lower portion thereof and a upper end of the rotary shaft 12 supported by a bearing 13 provided at an upper portion thereof is provided. is set up. The upper opening of the cylindrical filter 6 is exposed to the through hole 5 so that the water moving from the lower chamber 3 to the upper chamber 2 through the through hole 5 always passes through the cylindrical filter 6. .

As shown in FIGS. 3A and 3B, the cylindrical filter 6 has an upper opening frame 7 and a lower frame 8 fixed to the rotary shaft 12 via nuts 18 and 19, respectively. And a filter support bar 9 connecting between them, and a filter main body 10 having a fine filtration surface of a predetermined mesh is stretched around the filter support bar 9. The filter body 10 may be appropriately selected from wire mesh, punching metal and other materials.

The upper opening frame 7 is provided with a water passage hole 5 ′ having substantially the same size as the through hole 5.

A packing 14 has a diameter slightly larger than the diameter of the filter body 10 attached to the upper opening frame 7, and the packing 14 is brought into contact with the lower side of the partition plate 4. Since the water pressure of the cylindrical filter 6 inside and outside is higher on the outside, the packing 14 is always pressed against the upper partition plate 4 by this water pressure, and the water does not pass through the packing 14, It always passes through the cylindrical filter 6 and is filtered, so that filtration leakage can be prevented.

The filter support bar 9 is formed in a vertically long shape having a horizontal cross section that extends radially from the center of rotation of the cylindrical filter 6, so that it can withstand the water pressure applied to the filter body 10. Has become.

An electric motor 22 is installed on the upper part of the filtration tank 1 via a mounting base 21, and the upper end of the rotary shaft 12 of the cylindrical filter 6 is connected via a shaft joint 23. The electric motor 22 preferably has a deceleration function, and is adjusted to rotate about 100 times / minute. This number of rotations can be appropriately changed depending on the water pressure, the type of dust, and other conditions.

In the filtration tank 1, a water outlet pipe 15 is connected to the upper chamber 2 divided by the partition plate 4, and a water inlet pipe 16 is connected to the lower portion of the lower chamber 3. The water inlet pipe 16 is connected to the cylindrical filter tank 1 along its tangential direction, and can circulate raw water in a vortex flow. Reference numeral 17 is a dust pipe installed on the upper part of the lower chamber 3, 20 is a drain pipe, and 24 is an inspection window.

The partition plate 4 is formed so as to project downward at the mounting position of the cylindrical filter 6, and the upper end of the cylindrical filter 6 is configured to coincide with the position of the dust pipe 17. .

In the filter of the above-described embodiment, the water entering from the water inlet pipe 16 provided in the lower portion of the lower chamber 3 rises, and the water pressure is applied from the outer surface of the cylindrical filter 6 to the cylindrical filter in the filtration tank 1. Pressurized into 6 and filtered. At that time, the water rises while rotating around the periphery of the cylindrical filter 6 as the cylindrical filter 6 rotates, so that the dust adhering to the cylindrical filter 6 also comes to the surface of the cylindrical filter 6. Move up to the top.

The dust that has moved and accumulated on the upper part of the cylindrical filter 6 is drawn out from the dust pipe 17 and automatically discharged to the outside of the filter. In this way, in the filter of the present invention, the cylindrical filter 6 is hardly clogged with dust, and continuous and automatic operation is possible.

[0024]

[Effect of device]

 Therefore, according to the filter of this invention, the dust filtered by the cylindrical filter can be automatically removed from the cylindrical filter during the filtering operation and discharged to the outside of the filter, which enables continuous operation for a long time. It is possible to provide a simple filter.

Further, even if the water pressure applied to the outer surface of the cylindrical filter in the filtration tank changes, it does not hinder the rotation of the cylindrical filter and the cylindrical filter does not become clogged, so Automatic operation is possible.

Furthermore, by using the filter of this invention, it is not necessary to use groundwater, and by using river water or circulating tap water, this is a problem in Niigata Prefecture and the like. Ground subsidence can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a filter according to the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3A is a longitudinal sectional view of a cylindrical filter, and FIG.
FIG.

[Explanation of symbols]

 1 Filter Tank 2 Upper Chamber 3 Lower Chamber 4 Separation Plate 5 Through Hole 5'Water Through Hole 6 Cylindrical Filter 7 Upper Opening Frame 8 Lower Frame 9 Filter Support Bar 10 Filter Body 11 Bearing 12 Rotating Shaft 13 Bearing 14 Packing 15 Outlet Pipe 16 Water inlet pipe 17 Dust exhaust pipe 18, 19 Nut 20 Drain pipe 21 Mounting base 22 Electric motor 23 Shaft coupling 24 Inspection window

Claims (1)

[Scope of utility model registration request] 1. A cylindrical filter tank is divided into an upper chamber and a lower chamber by a partition plate, and a through hole is bored in the partition plate to communicate the upper chamber and the lower chamber, and the through hole is formed in the through hole. A cylindrical filter is rotatably provided, a reduction motor is connected to the rotating shaft of the cylindrical filter, a water outlet pipe is connected to the upper chamber, and a tangential direction of the cylindrical filter tank is provided at the lower part of the lower chamber. Water is circulated in a vortex by connecting the water inlet pipes, and the water entering from the water inlet pipe of the lower chamber is filtered as it passes from the outer surface to the inner surface of the cylindrical filter, and the filtered water is further discharged from the outlet pipe of the upper chamber. The filter is characterized in that a dust pipe is connected to the upper part of the lower chamber so as to be discharged.