KR20190020384A - Multi complex Sand Filter - Google Patents

Abstract

The present invention relates to a rotary shaft sand multi-complex filter, capable of more efficiently washing polluted water by generally mixing sand at a time through improvement of a facility structure for stirring sand filled in a housing, wherein the rotary shaft sand multi-complex filter comprises: a housing including a main body and a cover; a discharge port mounted on the housing to separately discharge sand and backwashing water by including a water inlet and a water outlet; and a stirring means arranged in the center of the housing to be operated in accordance with an operation of a motor, wherein the stirring means includes: a stirring blade mounted in a vertically disposed rotary shaft at a predetermined interval; and a filter including first and second support members, and mounted at upper and lower end portions in the housing. Accordingly, the rotary shaft sand multi-complex filter of the present invention is suitable for purifying a large amount of water, and can generally mix sand filled inside the housing by a rotary shaft included in the stirring means of the housing and hemispherical stirring blades mounted on the rotary shaft, thereby reducing the amount of water used for backwashing, uniformly backwashing the entire sand, and greatly shortening time therefor.

Description

{Multi complex Sand Filter}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a filtration apparatus, and more particularly, to a filtration apparatus that improves the structure of an apparatus for stirring sand filled in a housing, Multiple complex filters.

Generally, water tanks used in swimming pools, public sauna facilities, and bathrooms are commonly used by many people. Therefore, the water in the water tank should be replaced with clean water as the water quality becomes easily contaminated.

In addition, if the contaminated water is discharged as it is, the consumption of water is too large to be economically disadvantageous, resulting in waste of water, depletion of water resources and waste of energy.

Accordingly, relatively less polluted water used mainly in a water tank is used by a circulating filtration apparatus or the like to supply clean water to the water tank in which various suspended substances contained in water or foreign substances are filtered out, thereby maintaining the water quality clean Of course, we can reduce the amount of water used to make it economical.

However, since the conventional filtration apparatus has a complicated piping connection and large volume of the equipment itself, it requires a large facility and requires a large initial cost.

Further, in order to alternately perform the process of filtering the suspended matters contained in the polluted water or re-supplying the purified water to the water tank or the backwashing process of cleaning the inside of the filtration tank, Therefore, it is troublesome and inconvenient to operate and manage, and it must bear a considerable labor cost.

In connection with such a filtration facility, the waste heat recovery device disclosed in Korean Patent No. 0686189 includes a waste water collection tank to which a waste water inlet pipe into which hot water is already used is connected, and a waste water supply pipe separately from the waste water collection tank, And a wastewater discharge pipe connected to the waste water heat exchange tank. However, since this device backs up the filter of the filter box by the filter box method, the backwashing is not performed well, so the structure needs to be improved more efficiently .

In the case of Japanese Laid-Open Patent Application No. 2009-0026405, sand is filled in the sand filter and sand can be stirred by a rotating screw that is interlocked by a decelerating motor. However, The impeller and the rotary shaft are easily deformed or damaged due to the resistance of the sand as well as the stirring.

Open Patent No. 2009-0026405 (Published Mar. 13, 2009): Automatic cleaning device for sand filter. Open Patent No. 2017-0031996 (published on Mar. 23, 2017): waste water heat recovery and filtration device. Registration No. 0573425 (Registered on Apr. 17, 2006): Filtration apparatus for bath wastewater. Registration No. 0686189 (Registered on February 15, 2007): Waste heat recovery device for hot water. Registration No. 1509615 (Registered on April 1, 2015): Sand filter.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a rotary shaft sand multiple composite filter capable of more effectively shaking contaminated water by allowing the sand to be shuffled as a whole through a structure improvement in a housing. .

To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a sand filter configured to supply polluted water to a sand filled housing to clean purified water and to discharge purified water to the outside, The housing is provided with an agitating means which is provided at the center of the housing and operates according to the operation of the motor, the agitating means being provided with an outlet for discharging the sand and the backwash water including the inlet and the drain, And a stirrer mounted on the rotary shaft at regular intervals, and the upper and lower ends of the housing are respectively equipped with a screw net including the first and second support members.

The stirring vanes are arranged so as to be helically arranged in such a manner that their cross sections are arcuate and mutually shifted in height with respect to a rotation axis. The stirring vanes are formed of an inner plate having a dense through hole and a large- And is mounted on the inner bottom surface of the housing via upper and lower retaining rings.

The present invention is suitable for a large-capacity water purifier, and it can mix the sand filled in the housing with the rotating shaft constituting the agitating means on the housing and the hemispherical stirring vanes mounted on the rotating shaft so that the amount of water used for backwashing It is possible to back-wash the entire sand evenly and greatly shorten the time.

1 is a cross-sectional view of a sand filter disclosed in Japanese Patent No. 1509615,
Fig. 2 is a perspective view of the stirring means shown in Fig. 1; Fig.
3 is a schematic diagram for explaining the constants and the backwashing process of the sand filter,
4 is a cross-sectional view showing the overall configuration of a sand filter according to the present invention,
5A and 5B are a perspective view and a plan view showing a part of the stirring means,
FIG. 6 is a perspective view of a state in which a wire netting body is mounted in a housing,
7 is an assembled state sectional view of Fig. 6, Fig.
8 is a schematic view for explaining the operation of the sand filter.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the specific structures and functions of the present invention are not limited to the embodiments described in the present specification.

First, as an example in which the embodiment of the present invention is most preferably applicable, the first embodiment disclosed in Japanese Patent No. 1509615 will be described as it is, and after deriving a problem therefrom, Will be described later.

1 to 3, a sand (10) is filled in a housing (200) where a drain hole (280) is formed, and a contaminated water supply pipe 400 are disposed on the top of the sand 10 and the stirring means 100 is disposed inside the housing 200. The lower end of the rotating shaft 300 is connected to the upper center of the stirring means 100 and the rotating shaft 300 is driven by a motor 350 mounted on the housing 200.

The stirring means 100 is configured such that the outer circumferential surface of the stirring screw 120 is bonded to the stirring frame 110 so that the stirring screw 120 having the hollow portion 121 formed therein is disposed inside the stirring frame 110, 110 are composed of first and second flatbed frames 111, 113, and upper ends thereof intersect with each other.

A lower end of a rotary shaft 300 is connected to an intersection point 115 of the first and second flatbed frames 111 and 113. A first rotary pedestal 130 is joined to an upper end of the vertical portion, And the second rotating pedestal 140 is joined to the lower ends of the frames 111 and 113.

The stirring frame 110 is provided with a dispersing net 150 at an upper inner side thereof and is supplied with the contaminated water discharged from the contaminated water supply pipe 400 dispersed toward the sand 10 by the dispersing net 150.

The stirring means 100 configured as described above allows the power of the motor 350 to be transmitted to the stirring frame 110 through the rotating shaft 300 so that the stirring frame 110 rotates and the stirring screw 120 is rotated by the sand 10 So that the stirring screw 120 can shuffle the entire sand filled in the housing 200 at a time.

When the stirring frame 110 rotates, the first and second rotation supports 130 and 140 are supported by the first and second bearings 230 and 260 disposed in the housing 200 to rotate the stirring frame 110 and the stirring screw 120 can be dispersed.

The flange 211 is formed at the upper end of the main body 210 of the housing 200 so that the flange 211 is coupled to the flange 221 of the lid 220 by the bolt 225, The first pedestal 215 is joined to the lower portion of the flange 211 of the first pedestal.

The first bearing 215 is attached to the first bearing 215 so that the first rotating bearing 130 of the stirring means 100 is supported by the first bearing 230 and the second bearing 250 And a second bearing 260 is mounted on the second pedestal 250 to support the second rotatable pedestal 140 of the agitating means 100.

In addition, a backwash water outlet 270 through which the water backwashed with the sand 10 is discharged is formed at the upper end of the housing 200, and a drainage hole (not shown) for discharging the water filtered by the sand 10 And a sand drain port 290 for discharging the contaminated sand 10 and a monitoring window 227 for inserting new sand or observing the inside of the lid 220 are disposed.

3, the polluted water is supplied to the contaminated water supply pipe 400 through the first line L1 by the pump P1, and then flows into the interior of the housing 200 through the polluted water supply pipe 400 And the filtered water is discharged through the second line L2 connected to the drain port 280. In this case,

Water and air are supplied to the interior of the housing 200 through the second line L2 connected to the drain port 280 for backwashing so that the wash water and the air backwashing the sand 10 are discharged through the backwash water outlet 270 As shown in FIG.

However, when the stirring screw 120 constituting the stirring means 100 is rotated in the process of mixing the sand 10, the sand filter (sand filter) 10), so there is a problem that it is not possible to evenly mix the whole by causing idling.

In addition, a large pressure is applied to the inside of the housing 200, which is an obstacle to operation.

FIGS. 4 to 8 illustrate the structure of a sand filter according to an embodiment of the present invention. Referring to FIGS. 4 to 8, the present invention includes a main body 20 filled with sand 10, A housing 30 is mounted on the main body 20 to form a housing 40. A motor 50 is mounted on the housing 40 and the housing 30 40 in the center of the agitating means (60).

A flange 21 is formed at an upper end of the main body 20 and is bound by a flange 31 and a bolt 22 formed on the lid 30.

The upper end of the housing 40 is provided with a backwash water discharge port 42 through which the water backwashed from the sand 10 is discharged including the inlet 41 through which the contaminated water is supplied, A drain port 43 for discharging the filtered water and an outlet port 44 for discharging the contaminated sand 10 are provided.

The lid 30 is provided with a monitoring window 32 for inserting new sand or observing the inside of the lid 30. A first bracket 23a protrudes from the upper end of the main body 20 to receive the bearing 24 and a second bracket 23b protrudes from the lower end of the main body 20.

The stirring means 60 includes a rotation shaft 61 vertically disposed at the center of the housing 40 and stirring vanes 62 mounted on the rotation shaft 61 at regular intervals. And the first and second support members 63A and 63B are mounted on the upper and lower ends of the support member 70, respectively.

That is, the first support member 63A is held by the bearing 24 provided on the first bracket 23a in the main body 20 so as to rotate together with the rotation shaft 61, and the second support member 63B, Is configured so as to be freely rotatable while keeping the lower end of the rotary shaft 61 in a fixed position in a state in which it is mounted on the second bracket 23b.

5A and 5B, the stirring vanes 62 are mounted on the rotary shaft 61 so as to be shifted in height from each other with respect to the rotary shaft 61, and are disposed around the rotary shaft 61 in a virtual spiral shape Most preferably, each of the agitating blades 62 is formed in a shape such that a cylindrical pipe having a diameter of approximately 100? To 300? Is cut to 1/3.

That is, the sand 10 can be effectively shuffled by making the cross-section of the stirring vanes 62 form an arc shape similar to that of a bucket.

6 and 7, the screen 70 includes two inner plates 72A having a dense through hole 71a and two outer plates 71b having a relatively large diameter hole 71b. And a plate body 72B.

Each of these inner and outer plates 72A and 72B is fastened with a bolt 74b on a support piece 74a protruding from the bottom surface of the housing 40 via upper and lower retaining rings 73, A spray mechanism (80) for injecting air into the housing (40) by the operation of the pump is provided on the bottom surface of the screwdriver (70).

The stirring means 60 configured as described above is configured so that the power of the motor 50 is transmitted through the rotating shaft 61 and is rotated so that the stirring vanes 62 are rotated without being deformed or broken, So that the filled sand 10 can be shuffled as a whole.

At this time, since the stirring vanes 62 are formed in an arc-like shape like a bucket and are mounted spirally around the rotation shaft 61, the sand 10 can be more effectively mixed.

The first supporting member 63A provided in the housing 40 and the second supporting member 63B holding the tip of the rotating shaft 61 are rotated by the stirring vane 62, Can be dispersed.

8, when the sand filter is in operation, the pump P1 is operated to supply the contaminated water to the inlet 41 through the first line L1, And is filtered by the sand 10.

The filtered water is then discharged through the second line L2 connected to the drain port 43 and the water is discharged into the interior of the housing 40 through the second line L2 connected to the drain port 43 for backwashing, The air is supplied through the injection mechanism 80 by the pump operation, and backwashing is performed.

The washing water and the air backwashing the sand 10 can be discharged to the outside through the backwash water outlet 42 and the contaminated sand 10 can be removed through the outlet 44.

As described above, according to the rotary shaft sand multi-complex filter according to the present invention, the rotary shaft sand multiple complex filter according to the present invention is not only suitable for large-capacity water purification, but also includes a rotary shaft constituting an agitating means on the housing and a sand filled in the interior of the housing by hemispherical stirring blades mounted on the rotary shaft. The amount of water used for backwashing can be reduced, and the entire sand can be backwashed evenly and the time can be greatly shortened.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: sand 20: body
21: flange 22: bolt
30: lid 31: flange
32: Monitoring window 40: Housing
41: inlet 42: backwash water outlet
43: drain hole 44: outlet
50: motor 60: stirring means
61: rotating shaft 62: stirring blade
70: Color screen 71a: Transmission hole
71b: through holes 72A, 72B: inner and outer plates
73: stationary ring 80: injection mechanism

Claims (3)

A filtration system configured to supply purified water to the inside of a housing filled with sand and clean it, and then to discharge the purified water to the outside,
The housing 40 includes a main body 20 and a lid 30. The housing 40 includes an inlet 41 and a drain 42 for discharging sand and backwash water, And an agitating means (60) mounted at the center of the housing (40) and operated in accordance with the operation of the motor (50)
The stirring means 60 is composed of a stirring blade 62 mounted at regular intervals on a vertically arranged rotary shaft 61,
Wherein a filter net (70) including first and second support members (63A, 63B) is mounted on upper and lower ends of the housing (40), respectively. The rotary shaft multi-complex filter according to claim 1, wherein the stirring vanes (62) are formed in an arc-like shape in cross section and are arranged so as to be shifted in height from each other about the rotary shaft (61) . The apparatus according to claim 1, wherein said screen element (70) comprises an inner plate body (72A) having a dense through hole (71a) and an outer plate body (72B) having a large diameter through hole (71b) Is mounted on the inner bottom surface of the housing (40) through the through-hole (73).

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