KR100655483B1 - Apparatus for filtering sludge from water for purification - Google Patents

Abstract

A water purification system is provided to effectively remove sludge or contaminants contained in water without contaminating water of a purification water area by adopting a rotary upflow type filtration method, completely remove sludge or contaminants adsorbed onto filtering device by backwashing water using at least two pumps, and easily perform maintenance and repairing by adopting a checking passage and a checking port. A rotary upflow type water purification system comprises: a first pump(40) for sucking sludge together with water from a lower water area(100); a filtration case(21) in which a filtering layer(22) is formed to filter water and sludge sucked by the first pump, and which has a sludge outlet formed on the bottom thereof; a discharge pipe(35) for supplying the water and sludge sucked by the first pump to a lower part of the filtering layer within the filtration case; discharge device(24) rotatably connected to an end of the discharge pipe to spray water and sludge supplied through the discharge pipe toward the filtering layer; and a passage member which extends from an upper portion of the filtering layer to a lower portion thereof, and in which a checking passage communicating with an internal space of the filtration case is formed, wherein water from which sludge is filtered after ascending the filtering layer is supplied into an upper water area(200).

Description

Rotary upflow water filtering device {Apparatus for filtering sludge from water for purification}

1 is a longitudinal sectional view schematically showing the configuration of a water purification system employing a water filtration device according to a preferred embodiment of the present invention.

Figure 2 is a schematic cross-sectional view showing the configuration of the sludge filtration means of the water filtration apparatus according to a preferred embodiment of the present invention.

FIG. 3 is a schematic plan view taken along line III-III ′ of FIG. 2.

Figure 4 is a plan view schematically showing the configuration of the discharge means employed in the sludge filtration means according to a preferred embodiment of the present invention.

Figure 5 is a schematic cross-sectional view showing the coupling portion of the sludge filtration means according to an embodiment of the present invention.

6 is a cross-sectional view schematically showing the configuration of a water filtration device according to another preferred embodiment of the present invention.

The present invention relates to a rotary upflow water filtration device, and more particularly, to a rotary upflow water filtration device capable of effectively removing sediment sludge, sedimentation sludge, and the like existing in a water body of a closed water body such as a pond.

In general, closed water bodies, such as natural or artificially-dried reservoirs or ponds, are mostly lacking or almost no influent. In such closed water bodies, water quality is severely contaminated if the rate of increase of naturally occurring and unspecified contaminants from outside exceeds the natural self-cleaning capacity, causing sedimentary sludge or sludge to be deposited on the bottom of the pond. .

The accumulated contaminants decay over time or rise above the water, causing odors, polluting water quality, and at the same time being a major cause of damage to the landscape. Therefore, the necessity of continuously removing such settling sludge or sedimentary sludge is absolutely required.

Conventionally, the general method for removing the sediment sludge or sedimentation sludge as described above was a method of draining all the water in the water body and dredging or discharging it using suction equipment. However, this method requires enormous manpower, time, and cost, and furthermore, as the pollutant increases again over time, it is inconvenient to repeat the pollutant removal operation periodically.

As another method of the related art, there is an attempt to inject a chemical into water or inject air to float a precipitate to remove it. However, when the body of water is very large, the removal efficiency is very low, it is very uneconomical to add the medicine and air injector and the removal of the injuries.

In view of the above, a system for constantly filtering sludge in order to purify the water quality of the closed water is proposed. According to this system, a plurality of inlets are formed at the bottom of the pond and the closed water, and the sludge is sucked through these inlets and then introduced into a separate purified water body through the underground pipeline. Water introduced into the purified water is filtered through contaminants such as sludge while passing through the bottom filtration layer, and the purified water is again supplied to the original water along a separate pipeline.

However, such a system employs a so-called 'top-down' filtration method in which contaminated water seeps into the bottom layer, so that filtered contaminants or sludge will be deposited on the bottom sand layer. Therefore, the bottom of the purified water is severely polluted, causing odor or inhibiting the hydraulic tube. Furthermore, in order to periodically remove the sediment contaminants, when the water flows in the reverse direction to backwash the filtration layer, the sediment contaminants or sludge floats on the surface of the pond, increasing the pollution of the purified water, and further, In order to send and remove a large amount of water must be flowed, so the removal efficiency is not only low but also very economical.

Therefore, there is an urgent need for means that can effectively filter and purify the water quality without contaminating the water quality of the purified water.

The present invention was devised in view of the above problems, and by adopting a rotary upflow filtration method, it is possible to provide a water filtration device that can effectively remove sludge or contaminants contained in water without contaminating the water quality of the purified water. The purpose is.

It is still another object of the present invention to provide a water filtration apparatus capable of completely removing sludge or contaminants adsorbed on filtration means by driving at least two or more pumps to backwash water.

Still another object of the present invention is to provide a water filtration device configured to be easy to maintain by employing an inspection passage or inspection opening.

In order to achieve the above object, the water filtration apparatus according to the present invention comprises: a first pump for sucking sludge together with water from a lower body of water; A filter case provided with a filtration layer for filtering water and sludge sucked by the first pump, and a sludge discharge port formed at a bottom thereof; A discharge pipe for supplying the water and the sludge sucked by the first pump to a lower portion of the filtration layer inside the filter case; Discharge means rotatably coupled to an end of the discharge pipe to spray water and sludge supplied through the discharge pipe toward the filter layer; And a passage member extending from an upper portion to a lower portion of the filtration layer and having a check passage formed therein to communicate with an inner space of the filtration case, wherein the sludge-filtered water is disposed upward from the filtration layer. It is configured to be supplied to the body of water.

Preferably, the discharge means, the one end is coupled to communicate with the discharge pipe and at the same time rotatable around the coupling portion, and comprises a plurality of discharge pipes formed with a plurality of discharge ports for injecting the water and sludge do.

More preferably, all of the discharge ports are formed in one direction deviated in the lateral direction of the discharge tube.

More preferably, the discharge port is formed obliquely upwardly inclined toward the filtration layer.

In addition, the present invention is coupled to the end of the discharge pipe, while being coupled to the discharge pipe rotatably coupled to the discharge pipe is in communication with the discharge pipe; And rotation connecting means interposed between the coupling member and the discharge pipe so as to be rotatable with each other.

Here, the rotation connecting means, the bush is coupled to the end of the discharge pipe; A rotary tube coupled to the bush rotatably and fixed to an end of the coupling member; And a bearing interposed between the bush and the rotary tube.

Preferably, a strainer is provided in the filter case, and the filtration layer is positioned above the strainer.

In addition, the filter case is preferably composed of a cylindrical body portion and the hopper-shaped precipitation portion extending below.

Preferably, the settling portion of the filter case is further provided with at least one perforated plate having a plurality of through holes.

An openable cover is coupled to an upper end of the passage member, and a portion of the filtration layer is formed on the cover to embed the passage member.

The present invention also includes a plurality of pumps connected to the sludge outlet and its inlet by a sludge discharge pipe to suck sludge inside the filter case; And a drain pipe connected to the outlets of the plurality of pumps to discharge the sludge to the outside.

Here, the plurality of pumps may include the first pump.

Preferably, the sludge discharge pipe is connected to the suction pipe, the drain pipe is connected to the discharge pipe.

According to another embodiment of the present invention, a plurality of pumps; A suction pipe connected to at least one inlet of the plurality of pumps to provide a passage for sucking sludge together with water from a lower body of water; A housing having a filtration layer for filtering the water and the sludge sucked through the suction pipe, a sludge outlet is formed at the bottom thereof, and a discharge port through which the sludge filtered water is discharged; A discharge pipe for supplying the water and sludge sucked through the suction pipe to a lower portion of the filtration layer inside the housing; Discharge means rotatably coupled to an end of the discharge pipe to spray water and sludge supplied through the discharge pipe toward the filter layer; A supply pipe connected to an outlet of the housing to discharge the sludge filtered water to the upper body, going up the filter layer; A first counter flow pipe connected to the supply pipe and one end thereof connected to at least one inlet port of the plurality of pumps to reverse water; And a second backflow pipe for supplying the water flowed back through the first backflow pipe into the housing.

Preferably, the other end of the first backflow pipe is connected to the suction pipe, and one end of the second backflow pipe is connected to the discharge pipe.

More preferably, the other end of the second backflow pipe is connected to the supply pipe adjacent to the outlet of the housing, one end of the first backflow pipe and the other end of the second backflow pipe coupling portion coupled to each other The valve is provided in between.

According to the invention, the discharge port of the housing is further provided with a spray member formed with a plurality of through holes.

According to a preferred embodiment of the present invention, the apparatus further includes first and second check holes formed on the upper and lower portions of the housing, respectively.

In the present invention, it is also preferable that the number of pumps for flowing water back through the backflow pipe is greater than the number of pumps for sucking water and sludge from the lower body through the suction pipe.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 shows a schematic configuration of a water purification system employing a water filtration device according to a preferred embodiment of the present invention.

Referring to the drawings, the water filtration apparatus of the present invention may be installed in a pond, for example, a closed water body. The pond may be divided into a lower body of water (100) that accommodates most water and has a relatively low water surface, and an upper body of water or a purified water body (200) of a portion of which the surface of water is relatively higher than the lower body of water (100). have. The purified water 200 is an area where contaminated water is discharged after being filtered and purified. These purified water bodies 200 and lower water bodies 100 are connected by step water bodies 300 therebetween, and water flows from the purified water bodies 200 to the lower water bodies 100.

The water purification system according to the present invention includes a plurality of sludge suction means 10 installed in the lower water body 100.

The sludge suction means 10 is to suck the sludge precipitated at the bottom of the pond with water, they can be installed in a plurality of spaced apart from each other, the interval and number is appropriately according to the pollution degree and the midnight ability of the water Is set.

The sludge suction means 10 is connected to the first pump 40 by the suction pipe 30, the first pump 40 can suck the water and sludge, and can filter the sludge as described below. Provide driving power.

Water and sludge mixture introduced into the inlet 41 of the first pump 40 along the suction pipe 30 is sludge filtering means along the discharge pipe 35 connected to the outlet 42 of the first pump 40. Flow to (20).

Referring to FIG. 2 in which the configuration of the sludge filtration means 20 according to the present invention is shown in more detail, the sludge filtration means includes a filtration case composed of a cylindrical body portion 21a and a hopper type precipitation portion 21b. And a discharge means provided in the filter case 21.

The filtration layer 22 is provided in the body portion 21a of the filtration case 21 to filter contaminated water. The filter layer 22 may employ conventional media materials such as gravel, sand, activated carbon, and the like. Preferably, the lower portion of the body portion (21a) is provided with a strainer 23, on top of the strainer 23, for example, a large particle material such as gravel is stacked first, and a fine particle layer such as sand is stacked thereon can do.

According to the present invention, the filtration layer 22 is provided with a check passage 80 to allow the worker to enter the filtration case 21 or to maintain the devices therein.

Preferably, the check passage 80 is formed by a cylindrical passage member 81 installed vertically from the top to the bottom of the filtration layer 22. At this time, the lower end of the passage member 81 is coupled to the strainer 23 while extending to communicate with the internal space of the filter case 21.

More preferably, as shown in FIG. 3, the passage member 81 may be supported by the support frame 82 to be stably coupled.

In addition, the upper end of the passage member 81 is closed by an openable cover 83, and the filter member 22 is formed thereon so that the passage member 81 is embedded in the filter layer 22 so that it cannot be seen from the outside. It is desirable to. Combination between the cover 83 and the passage member 81 is possible by a variety of known methods will be omitted.

The discharge pipe 35 connected to the first pump 40 extends to the lower portion of the filtration layer 22 inside the filter case 21, preferably to the center of the lower portion of the strainer 23, and the extended discharge pipe. Discharge means is provided on the end of 35.

The discharge means includes a plurality of discharge pipes 24 rotatably supported at the end of the discharge pipe 35. Referring to FIG. 4, which shows the configuration of the discharge pipe 24, the discharge pipes 24 are rotated about the coupling portion with the discharge pipe 35 while one end thereof communicates with the discharge pipe 35. To be connected.

In addition, a plurality of discharge ports 24a are formed in the discharge tube 24, and the discharge holes 24a are formed in one direction (counterclockwise in this embodiment) on the side of the discharge tube 24. This is to cause the discharge tube 24 to rotate due to its reaction when discharging water and sludge through the discharge port 24a as described later.

According to a preferred embodiment of the present invention, the discharge port 24a may be formed to be inclined upwardly obliquely toward the strainer 23 in the circumferential direction of the discharge tube 24, preferably at an angle of 45 °. have. At this time, the formation angle of the discharge port may be appropriately set in consideration of the efficiency within the range in which the discharge tube 24 can rotate by the discharge reaction. In addition, the discharge port 24a may be formed as a conventional through hole or may be configured in the form of a nozzle.

At this time, one end of the discharge pipe 24 is coupled to communicate with the discharge pipe 35 connected to the first pump (40 in FIG. 1), wherein the discharge pipe 24 is coupled to the discharge pipe 35 It is coupled to be rotatable about the part. That is, as shown in FIG. 5, the discharge pipe 24 may be coupled to the discharge pipe 35 through the rotation connecting means 26. The discharge tube 24 may be integrally formed or integrated through the coupling member 25, in which case the coupling member 25 may be rotatably coupled to the discharge pipe 35.

The rotary connecting means 26 is a bush 26a coupled to communicate with each other at the end of the discharge pipe 35, and rotatably coupled within the bush 26a, and the discharge pipe 24 or the coupling member 25. Rotation tube (26b) coupled to communicate with the end of the).

A bracket 26c is formed at the end of the rotary tube 26b, which is coupled to the bracket 25a formed at the end of the coupling member 25 by a fastening member such as a bolt 28a. In addition, a bracket 26d is formed at the end of the bush 26a, which may be coupled to the bracket 35a formed at the end of the discharge pipe 35 by a bolt 28b.

Between the bush 26a and the rotary tube 26b, for example, a bearing 26e such as a sliding bearing is interposed therebetween so as to be capable of mutual rotation. Preferably, in order to support the weight of the rotary tube 26b, a separate bearing 26f is interposed at the lower end thereof to smoothly support the rotation.

More preferably, the rotation connecting means may be assembled and disassembled with respect to the discharge pipe and the discharge pipe as one component, and thus may be configured to be easily replaced as the bearing is damaged or the service life is elapsed.

Although the coupling between the discharge pipe 24 and the discharge pipe 35 in the present embodiment has been described in detail, it should be understood that the present invention is not limited to this embodiment, and the discharge pipe is connected to the discharge pipe. Any configuration conventionally applicable is applicable as long as it can be rotatably coupled.

The settling portion 21b of the filter case 21 is a place where the separated and filtered sludge is concentrated and settled, and a sludge discharge port 21c is formed at the bottom thereof, which is formed by the sludge discharge pipe 60. Connected with

According to the present invention, the sludge is discharged through the sludge discharge pipe 60 by a plurality of pumps, that is, the driving force of the first pump 40 and the second pump 50. That is, the sludge discharge pipe 60 is connected to the inlets 41 and 51 of the first pump 40 and the second pump 50.

In addition, the outlets 42 and 52 of the first pump 40 and the second pump 50 are connected to the drain pipe 90 to discharge the sludge and contaminants to the outside. Preferably, the outlets 42 and 52 of the first and second pumps 40 and 50 are connected to the discharge pipe 35 and the drain pipe 90 is connected to the discharge pipe 35.

The configuration of the sludge discharge pipe and the drain pipe exemplified above is merely an embodiment for simply configuring a pipe, and the present invention is not limited to such a configuration, and the sludge discharge pipe and the drain pipe are separate paths from the suction pipe and the discharge pipe. It may be configured.

In addition, at least one perforated plate 70 having a plurality of through holes 71 formed in the settling portion 21b of the filtration case 21 may be installed by the bracket 72, which will be described later. This is to prevent the vortex of the fluid during discharge to ensure a stable and uniform flow.

The water filtration device of the present invention can be installed and used directly below the purified water 200 as shown in FIG. In this case, various aquatic plants in the purified water 200 may be formed on the filtration layer 22 to maintain a natural landscape.

Reference numerals 75, 76, 77, and 78 which are not described in FIG. 1 indicate valves, respectively. Although the pipes between the suction means 10 and the pumps 40 and 50 and the sludge filtration means 20 have been described in detail in the present specification and drawings, the pipes therebetween are not limited within the scope of the technical idea of the present invention. Can be transformed. For example, a plurality of pumps may be employed to be distinguished for each use.

Then, the operation of the water purification system employing the water filtration device according to a preferred embodiment of the present invention having the above configuration will be described.

In the operation of the water purification system of the present invention, first, the first pump 40 is driven to suck the sludge together with the water in the lower body 100 through the suction means 10 and the suction pipe 30. At this time, the valves 75 and 77 are in an open state, and the valves 76 and 78 are in a closed state.

The sludge mixed water introduced into the inlet 41 of the first pump 40 through the suction pipe 30 is discharged to the outlet 42 of the first pump 40 and the sludge filtering means through the discharge pipe 35 ( 20 is introduced into the settling portion 21b of the filtration case 21.

Then, the sludge mixed water flows into the discharge pipe 24 connected to the discharge pipe 35 end and is injected through the discharge port 24a. At this time, the discharge port 24a is inclined upward obliquely toward the strainer 23, so that the sludge mixed water injected therefrom hits the strainer 23. In addition, as shown in FIG. 4, since the discharge port 24a is formed at one side (for example, counterclockwise) on the side of the discharge tube 24, the discharge port 24a may react with the injection pressure of the sludge mixed water. The discharge tube 24 is rotated, for example, clockwise.

The operation as described above brings the characteristic effects of the present invention. First, the sludge mixed water is sprayed at an angle to the strainer 23 to act to desorb pollutants deposited or adsorbed on the strainer 23. do. Secondly, as the discharge tube 24 rotates, the sludge and water near the strainer 23 are stirred to further promote separation and filtration of the sludge.

Subsequently, the injected sludge mixed water flows upward through the filter layer 22 by pressure, in which sludge or contaminants are filtered out by the filter layer 22.

As a result, clean water from which the sludge is separated and filtered is discharged to the purified water 200, and then flows along the step water 300 to the lower water 100. Although the water quality filtration device of the present invention is shown as being buried just below the purified water body 200 in this embodiment, as another alternative, the water separated and filtered by the water filtration device is passed through a separate passage. May flow to 200.

By repeating this process, the separated sludge is deposited on the bottom of the settling portion 21b in the filter case 21. If the sludge is deposited to some extent, it is removed by removing it out of the filter case 21, the process for this is as follows.

In the sludge discharge removal operation, the valves 75 and 77 are closed, the valves 76 and 78 are opened, and then the first pump 40 and the second pump 50 are simultaneously driven. That is, according to the feature of the present invention, when backwashing water for sludge discharge, a plurality of pumps are driven to provide a strong driving force.

Then, the sludge accumulated at the bottom of the settling tank 21b through the sludge discharge pipe 60 is discharged together with the water. At this time, the filtration layer 22 is also subjected to back pressure, so that the water flows downward, and in this process, sludge or contaminants attached to the filtration layer 22 and the strainer 23 are desorbed downward and the sludge together with the water. Exit to the discharge pipe (60). When the sludge is discharged, the perforated plate 70 serves to keep the flow uniform so that the fluid does not cause vortex.

Subsequently, the sludge discharged through the sludge discharge pipe 60 is discharged to the outside through the drain pipe 90.

The sludge discharge process does not have any effect on the purified water, and since the water flows downward due to the back pressure during the discharge of the sludge, there is no problem of contaminating water quality or floating of contaminants.

According to a feature of the present invention, when the sludge filtration means 20 is defective or needs to be maintained for the devices therein, access to the inside of the filtration case 21 through the above-described check passage 80. can do. That is, after removing a portion of the upper filtration layer in which the passage member 81 is embedded, opening the cover 83, the worker may enter the filtration case 21 through the inspection passage 80. It is possible to easily replace or maintain the parts including the discharge means.

A water filtration device 120 according to another preferred embodiment of the present invention is shown in FIG. 6. The water filtration device 120 of the present embodiment may be independently installed in a separate place such as a machine room without being buried underground.

Referring to the drawings, the water filtration apparatus 120 according to the present embodiment has a sealed housing 121, a filtration layer 122 installed inside the housing 121, and a lower portion of the water filtration device 120. And discharge means provided.

As described above, the filtration layer 122 may employ conventional media materials such as conventional gravel, sand, activated carbon, and the like. Preferably, a strainer 123a may be installed in the housing 121, and a filtration layer 122 may be interposed on the strainer 123a.

 The first pump 140 is connected to suck the contaminated sludge mixed water through the suction pipe 30, and the discharge pipe 135 is connected to the inside of the housing 121 from the first pump 140. It extends to the center of the lower portion of the lower strainer (123a), the discharge means is installed on the end of the extended discharge pipe 135.

The discharge means includes a plurality of discharge pipes 124 rotatably supported at the end of the discharge pipe 135 with the discharge port 124a formed, and the configuration and coupling relationship of the discharge means is the same as described above. Therefore, detailed description thereof will be omitted.

The sludge separated and filtered is concentrated at the bottom of the housing 121, and the concentrated sludge is discharged to the outside through the sludge discharge pipe 160 connected to the sludge outlet 121c formed at the bottom.

In addition, a supply pipe 170 is connected to the discharge port 125 at the top of the housing 121 so that the water from which the sludge and contaminants are separated and filtered by the filtration layer 122 is discharged, and the supply pipe 170 is ) Is connected to the purified water or the upper water (200 in Figure 1).

An injection member 181 is installed in the outlet 125 of the housing 121, and a plurality of minute holes are formed in the injection member 181, so that when water is flowed back for sludge discharge as will be described later, It functions to spray water through the through hole.

According to a feature of the present invention, countercurrent means is provided for backflowing water to remove sludge or contaminants in the housing 121. Specifically, the first backflow pipe 180 extends from the supply pipe 170 to the inlets of the first pump 140 and the second pump 150, and at the same time the second backflow pipe 190 is the first and the It extends from the outlet of the second pump 140, 150 to the supply pipe 170 adjacent to the outlet 125 of the housing 121.

The first backflow pipe 180 is a passage for suctioning the first and second pumps 140 and 150 to backflow the water, and the second backflow pipe 190 returns the sucked water back to the housing 121. It becomes the passage to supply inside of). Preferably, the first backflow pipe 180 may be connected to the suction pipe 30, and the second backflow pipe 190 may be connected to the discharge pipe 135.

In addition, the backflow pipe may be configured in various ways, for example, the second backflow pipe may be connected to the inside of the housing through another inlet without extending to the supply pipe.

Reference numerals 174, 175, 176, 177, 178, and 179, which are not described in FIG. 6, respectively indicate the valves.

In addition, according to the present invention, the first inspection opening 126 and the second inspection opening 127 are formed in the upper and lower portions of the housing 121, respectively. The first inspection opening 126 not only enables the installation of the filtration layer 122 and the like inside the housing 121, but also enables maintenance of the upper region inside the housing 121, and the second inspection opening ( 127 enables maintenance of the lower region inside the housing 121 in which the discharge means is located.

Then, the operation of the water purification system employing the water filtration device according to a preferred embodiment of the present invention having the above configuration will be described.

In the operation of the water purification system of the present invention, when the first pump 140 is first driven, the sludge is sucked together with the water through the suction pipe 30. At this time, the valves 174, 177, 179 are open, and the remaining valves 175, 176, 178 are closed.

The sludge mixed water introduced through the suction pipe 30 is introduced into the housing 121 of the water filtration device 120 through the discharge pipe 135 by the driving force of the first pump 140.

Then, the sludge mixed water flows into the discharge pipe 124 connected to the discharge pipe 135 and is injected through the discharge port 124a. At this time, since the discharge port 124a is inclined obliquely upward toward the lower strainer 123a, the sludge mixed water injected therefrom hits the strainer 123a. In addition, the discharge pipe 124 is rotated, for example, in a counterclockwise direction (since it is similar to FIG. 4). Rotation of the discharge tube 124 prevents the filter layer from being blocked by contaminants with sludge concentration.

Subsequently, the injected sludge mixed water flows upward through the filter layer 122 by the pressure in the housing 121, in which sludge or contaminants are filtered out of the filter layer 122.

Then, the water passing through the filtration layer 122 passes through the injection member 181 and is discharged to the purified water 200 through the supply pipe 170 through the discharge port 125, and then step water 300 Follow the flow to the lower body (100).

On the other hand, in the sludge discharge removal operation, the valves 174, 177, 179 are closed, and the valves 175, 176, 178 are opened, and then a plurality of pumps, that is, the first pump 140 and The second pump 150 is operated at the same time.

Then, the water in the upper body 200 is sucked through the first backflow pipe 180 by the driving force of the first and second pumps 140 and 150, and then discharged along the second backflow pipe 190. It is supplied into the housing 121 through the outlet 125 of the upper end of the housing 121.

At this time, the countercurrent water is strongly injected toward the filtration layer 122 while passing through the through hole of the injection member 181 installed in the outlet 125. This blowing force further promotes the detachment and removal of the sludge adsorbed and held in the filter layer 122.

Therefore, the sludge or contaminants that have been adsorbed and held by the filtration layer 122 and the strainer 123a are released downward, and are discharged to the sludge discharge pipe 160 together with water.

According to the water filtration apparatus of the present invention and the water purification system employing the same, since water and sludge are separated by the rotary upflow filtration method, it is possible to prevent the water quality of the purified water from being contaminated or inhibiting the hydraulic tube.

In addition, since the water and the sludge is filtered while the discharge member is stirred, it is possible to promote the separation of the sludge and prevent deterioration of the function of the apparatus due to the adsorption of contaminants.

In addition, since the discharge member is rotated as a result of the reaction by the earth output without a separate drive source, there is no need to install additional drive means such as a motor, and thus the structure is simple and the installation and manufacturing cost is also economical.

The water filtration device of the present invention is installed to be concealed under the purified water or the purified water so that it does not harm the hydraulic pipe at all, thereby enabling the implementation of an environmentally friendly system.

Furthermore, the water filtration apparatus of the present invention can improve the sludge removal and discharge effect by simultaneously operating a plurality of pumps to remove sludge.

In addition, the water filtration device of the present invention has the advantage of providing a separate check passage or check opening to conveniently and effectively maintain the device.

Claims (22)

A first pump for sucking sludge together with water from the subwater body; A filter case provided with a filtration layer for filtering water and sludge sucked by the first pump, and a sludge discharge port formed at a bottom thereof; A discharge pipe for supplying the water and the sludge sucked by the first pump to a lower portion of the filtration layer inside the filter case; Discharge means rotatably coupled to an end of the discharge pipe to spray water and sludge supplied through the discharge pipe toward the filter layer; And A passage member extending from an upper portion to a lower portion of the filtration layer and having a check passage formed therein to communicate with an inner space of the filtration case; Water filtering device, characterized in that the sludge is filtered water is fed back to the upper layer to the upper water. The method of claim 1, The discharge means, One end of which is coupled to communicate with the discharge pipe and is rotatably installed around the coupling part, the water quality filtering device comprising a plurality of discharge pipes formed with a plurality of discharge ports for jetting the water and sludge . The method of claim 2, The discharge port is water quality filtration device, characterized in that all formed in one direction biased in the lateral direction of the discharge tube. The method of claim 3, The discharge opening is formed inclined upwardly obliquely toward the filter layer. The method of claim 2, A coupling member coupled to an end of the discharge pipe and rotatably coupled to the discharge pipe so that the discharge pipe communicates with the discharge pipe; And And a rotation connection means interposed between the coupling member and the discharge pipe so as to be rotatably coupled to each other. The method of claim 5, The rotary connection means, A bushing coupled to an end of the discharge pipe; A rotary tube coupled to the bush rotatably and fixed to an end of the coupling member; And And a bearing interposed between the bush and the rotary tube. The method of claim 1, A strainer is provided in the filter case, and the filtration layer is positioned above the strainer. The method of claim 1, The filter case is a water filtering device, characterized in that consisting of a cylindrical body portion and the hopper-shaped precipitate extending in the lower portion. The method of claim 8, At least one perforated plate having a plurality of through holes is formed in the settling portion of the filtration case, characterized in that the water filtering device. The method of claim 2, An openable cover is coupled to an upper end of the passage member, and a portion of the filtration layer is formed on the cover, so that the passage member is embedded. The method of claim 1, A plurality of pumps connected to the sludge outlet and its inlet by a sludge discharge pipe to suck sludge in the filter case; And And a drain pipe connected to the outlets of the plurality of pumps to discharge the sludge to the outside. The method of claim 11, Wherein said plurality of pumps comprises said first pump. The method of claim 12, The sludge discharge pipe is connected to the suction pipe, And the drain pipe is connected to the discharge pipe. A plurality of pumps; A suction pipe connected to at least one inlet of the plurality of pumps to provide a passage for sucking sludge together with water from a lower body of water; A housing having a filtration layer for filtering the water and the sludge sucked through the suction pipe, a sludge outlet is formed at the bottom thereof, and a discharge port through which the sludge filtered water is discharged; A discharge pipe for supplying the water and sludge sucked through the suction pipe to a lower portion of the filtration layer inside the housing; Discharge means rotatably coupled to an end of the discharge pipe to spray water and sludge supplied through the discharge pipe toward the filter layer; A supply pipe connected to an outlet of the housing to discharge the sludge filtered water to the upper body, going up the filter layer; A first counter flow pipe connected to the supply pipe and one end thereof connected to at least one inlet port of the plurality of pumps to reverse water; And And a second backflow pipe for supplying the water flowed back through the first backflow pipe to the inside of the housing. The method of claim 14, The discharge means, One end of which is coupled to communicate with the discharge pipe and is rotatably installed around the coupling part, the water quality filtering device comprising a plurality of discharge pipes formed with a plurality of discharge ports for jetting the water and sludge . The method of claim 15, The discharge port is a water filtering device, characterized in that formed in one direction all on the side of the discharge pipe. The method of claim 16, The discharge opening is formed inclined upwardly obliquely toward the filter layer. The method of claim 14, The other end of the first backflow pipe is connected to the suction pipe, One end of the second countercurrent pipe is connected to the discharge pipe. The method of claim 18, The other end of the second backflow pipe is connected to the supply pipe adjacent to the outlet of the housing, And a valve is provided between the coupling portion of the supply pipe to which one end of the first backflow pipe and the other end of the second backflow pipe are respectively coupled. The method of claim 14, Water outlet filtration device, characterized in that the outlet of the housing is further provided with a spray member formed with a plurality of through holes. The method of claim 14, Water filtering device further comprises a first and a second check opening formed in the upper and lower portions of the housing, respectively. The method of claim 14, And the number of pumps for flowing water back through the counter flow pipe is greater than the number of pumps for sucking water and sludge through the suction pipe from the lower water body.

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