KR102105375B1 - Two parts fiber filter and water treatment device having the same - Google Patents

Abstract

The present invention relates to a two-stage fiber filtering tank capable of filtering and processing a pollutant included in water to be processed and a water treatment apparatus including the same. According to one embodiment of the present invention, the two-stage fiber filtering tank comprises: a water tank storing flowing water to be processed and divided into first and second spaces by a partition; a first fiber filter installed in the first space; and a second fiber filter installed in the second space. Each of the first and second fiber filters comprises: a porous tube extended in a direction perpendicular to the bottom of the water tank and having a plurality of holes formed on an outer circumferential surface; a plurality of fiber bundles surrounding the porous tube; a mesh surrounding the fiber bundles; and a driving unit lifting the mesh to press the fiber bundles. The meshes of the first and second fiber filters can be alternately lifted by the driving unit.

Description

Two-stage fiber filtration tank and water treatment device including the same {TWO PARTS FIBER FILTER AND WATER TREATMENT DEVICE HAVING THE SAME}

The present invention relates to a two-stage fiber filtration tank and a water treatment device comprising the same.

The operation of the filtration device includes a filtration process for introducing raw water containing suspended solids into the filtration device to remove suspended solids and discharging clean filtered water; It consists of a washing process to exclude suspended substances trapped in the pores in the filtration layer by the filtration process.

The filtration process is a process of separating and trapping suspended solids in raw water into the pores inside the filtration layer of the filtration device with complex mechanisms such as sifting, sedimentation, inertial collision, blocking, adsorption, and aggregation, and discharging only clean water into the filtered water.

If the filtration process continues, the voids in the filtration layer are gradually filled with suspended solids and the filtration resistance increases, leading to a state where the filtration process can no longer be continued.

At this time, a washing process is required to exclude suspended substances trapped in the pores by injecting clean washing water and air.

The inventors of the present invention have been studied for a long time in order to effectively operate the filtration process and the washing process, and have undergone trial and error to complete the present invention.

An object of the present invention is to provide a two-stage fiber filtration tank capable of filtering and treating contaminants in the water to be treated and a water treatment device including the same.

Still other objects not specified in the present invention will be further considered within the scope of the following detailed description and its effect can be easily deduced.

According to an aspect of the present invention, the tank receiving the flowing water to be treated and partitioned into a first space and a second space by a partition wall; A first fiber filter installed in the first space; And a second fiber filter installed in the second space, wherein each of the first fiber filter and the second fiber filter extends in a direction perpendicular to the bottom of the water tank, and a plurality of holes are provided on the outer circumferential surface. Synoptic; A plurality of fiber bundles surrounding the porous tube; A mesh surrounding the fiber bundle; And a driving unit which raises the mesh so that the fiber bundle is compressed, and by the driving unit, the mesh of the first fiber filter and the mesh of the second fiber filter are alternately lifted, and the second stage fiber filtering tank of the water treatment device is Is provided.

The first space and the second space may be arranged in parallel with respect to the flow direction of the water to be treated.

When the mesh of the first fiber filter rises, a filtration process is performed in the first fiber filter, the mesh of the second fiber filter is relaxed, and a washing process can be performed in the second fiber filter.

A first treated water discharge pipe provided at the bottom of the water tank to be connected to the porous pipe of the first fiber filter; And a second treated water discharge pipe provided at the bottom of the water tank to be connected to the porous pipe of the second fiber filter, and when the mesh of the first fiber filter rises, the first treated water discharge pipe is opened. , The second treated water discharge pipe may be closed.

When the mesh of the first fiber filter rises, the mesh of the second fiber filter is relaxed, and a backwashing fluid may be supplied to the fiber bundle of the second fiber filter.

A first backwash water discharge pipe provided in the water tank to be connected to the first space; And a second backwashing water discharge pipe provided in the water tank to be connected to the second space, and when the mesh of the first fiber filter rises, the first backwashing water discharge pipe is closed and the second backwashing water discharge pipe is provided. Can be opened.

According to another aspect of the present invention, receiving the microbubbles, floating tank for floating contaminants; A skimmer to remove injured contaminants; And a two-stage fiber filtration tank for filtering the treated water from which the injured contaminants are removed, wherein the two-stage fiber filtration tank corresponds to any one of the claims 1 to 6, and a water treatment device is provided.

According to the embodiment of the present invention, it is possible to effectively remove the contaminants contained in the water to be treated.

On the other hand, even if the effects are not explicitly mentioned herein, it is noted that the effects described in the following specification expected by the technical features of the present invention and the potential effects thereof are handled as described in the specification of the present invention.

1 and 2 are views showing a water treatment apparatus according to an embodiment of the present invention.
3 and 4 are views showing a fiber filtration tank of a water treatment device according to an embodiment of the present invention.
5 and 6 are cross-sectional views of a fiber filtration tank of a water treatment device according to an embodiment of the present invention.
7 and 8 are views showing a part of the fiber filtration tank of the water treatment apparatus according to an embodiment of the present invention.
9 and 10 is a view showing a fiber filtration tank operating state of the water treatment apparatus according to an embodiment of the present invention.
11 and 12 are partially enlarged views of a fiber filtration tank of a water treatment device according to an embodiment of the present invention.
13 and 14 are views showing a water treatment device according to an embodiment of the present invention.
The accompanying drawings indicate that they are exemplified by reference for understanding the technical idea of the present invention, and the scope of the present invention is not limited thereby.

In the description of the present invention, if it is determined that the subject matter of the present invention may be unnecessarily obscured by those skilled in the art with respect to known functions related thereto, the detailed description thereof will be omitted.

The terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described herein, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Hereinafter, an embodiment of a two-stage fiber filtration tank according to the present invention and a water treatment device including the same will be described in detail with reference to the accompanying drawings, and in describing with reference to the accompanying drawings, the same or corresponding components have the same reference numbers. And duplicate description thereof will be omitted.

1 and 2 are views showing a water treatment apparatus according to an embodiment of the present invention.

The water treatment apparatus according to an embodiment of the present invention includes a plurality of water tanks, and while transferring the water to be treated (W) from the front end to the rear end along the plurality of water tanks, a state in which the treated water (W) can be finally discharged It is a device that processes as much as possible.

The water to be treated (W) means contaminants as wastewater, wastewater, and living water, and thus means a liquid material that needs to be removed.

The water to be treated W may be sequentially received in a plurality of water tanks automatically by adjusting the flow rate. That is, the water to be treated (W) is provided to exceed the capacity of any one tank can be automatically transferred to the next tank. On the other hand, the water to be treated (W) may be artificially transferred to a plurality of water tanks artificially by a pump.

The raw water W1 stored in the raw water tank 1 is supplied to the water treatment device through the raw water line. Raw water may include wastewater, wastewater, and living water. On the other hand, when the treated water W is finally processed, it becomes the treated water W2 and is collected by the treated water tank 2.

1 and 2, the water treatment apparatus according to an embodiment of the present invention may include a blender 10, a coagulation tank 20, a floating tank 30, a fiber filtration tank 40.

The blender 10 of FIGS. 1 and 2 is a device for mixing raw water W1 and a chemical. The blender 10 may be installed on a raw water line through which the raw water W1 moves. The mixer 10 may be a line mixer as a rapid mixer. The drug may contain a coagulant such as PAC. The medicine may be stored in the medicine tank (T) and then introduced into the blender 10 by the operation of the medicine pump (P).

Meanwhile, the mixers of FIGS. 1 and 2 may be replaced with the mixing tanks of FIGS. 13 and 14. That is, the water treatment apparatus according to an embodiment of the present invention may include a mixing tank 10, a coagulation tank 20, a floating tank 30, a fiber filtration tank 40.

The mixing tank 10 is a water tank in which the supplied raw water W1 and the chemical are mixed. The drug may contain a coagulant such as PAC. The medicine may be stored in the medicine tank (T) and then introduced into the mixing tank 10 by the operation of the medicine pump (P).

Agitator 11 is installed in the mixing tank 10 to effectively mix raw water and chemicals. The stirrer 11 may include a paddle type stirrer, a propeller type stirrer, a turbine type stirrer, and the like.

The agglomeration tank 20 is a water tank that aggregates the mixed water to be treated W and flocks (lumps) contaminants in the water to be treated W. The flocking aims to increase the size of the contaminants so that they can collide with the microbubbles. The size (diameter) of the flock may be 32 μm or more, but is not limited.

The agitator 21 may be installed in the coagulation tank 20, and the agitator 21 may include a paddle type agitator, a propeller type agitator, a turbine type agitator, and the like. The agitator 21 of the coagulation tank 20 may be formed of a different type from the agitator 11 of the mixing tank 10.

The aggregation tank 20 may be formed in plural. As the flocculation tank 20 passes, the floc of contaminants may gradually increase. The to-be-treated water W that has passed through the coagulation tank 20 flows into the front end of the flotation tank 30, and the to-be-treated water W may be particularly introduced to the bottom of the flotation tank 30.

Meanwhile, in FIGS. 13 and 14, the mixing tank 10 and the agglomeration tank 20 are illustrated separately from each other, but unlike the FIGS. 13 and 14, the mixing tank 10 and the agglomeration tank 20 are mixed agglomeration tanks. (20) can be integrated into one.

The floating tank 30 is a water tank using a dissolved air flotation method, and receives a microbubble to float the pollutant floc into a microbubble. The microbubble is made of air and a membrane surrounding it, and as a micro-sized bubble, the diameter may be 10 to 100 μm, but is not limited. The microbubble may be supplied to the floating tank 30 by the microbubble generator.

The microbubble generator B may include a saturation tank device or a pump device.

The microbubble generator as a saturation tank apparatus may include an air compressor and a contact tank (saturator). The air compressor compresses the air and supplies it to the contact tank. The microbubble generator, particularly the contact tank, is supplied with the treated water W with the floc removed, and the treated water W may be supplied from the fiber filtration tank 40 through the circulation line L1. In addition, a circulation pump may be provided in the circulation line L1. In the contact tank, air and the water to be treated (W) are in contact with each other. The resulting microbubbles can be supplied into the floating tank 30 through a nozzle extending from the contact tank to the floating tank 30.

Meanwhile, the microbubble generator as a pump type may include a microbubble generation pump (DAF pump) in which the functions of the above-described saturation molding device are integrated.

In addition to this, the type of the microbubble generator applied to the present invention is not limited, and all known microbubble generators can be used.

The floating tank 30 may be divided into a contact tank and a separation tank, and a partition wall 31 may be formed between the contact tank and the separation tank. That is, the front end of the partition wall 31 may be a contact tank and the rear end of the partition wall 31 may be a separation tank. The partition wall 31 may include an inclined surface, and may be formed by inclining 50 to 70 ° in the flow direction of the water to be treated (W), but is not limited.

The contact tank is a space for receiving microbubbles, and in the contact tank, the water to be treated (W) meets the microbubbles and the flocks and the microbubbles in the water to be treated may collide, and the microbubbles are combined with the collided flocs. It can cause flocks. The water to be treated (W) and the microbubbles can move upward along the partition wall (31).

In the separation tank, flocs (also referred to as floats) F floated by the microbubbles may be separated from the treated water W. That is, the float F is located on the upper layer, and the water to be treated W is located on the lower layer. The float F may form a layer having a predetermined thickness.

The floe (float) F floating on the water surface may be removed by a skimmer 32.

The skimmer 32 may be implemented in various forms such as a scraper type, a screw type, and a half pipe type.

The scraper-type skimmer 32 pushes the flop with the scraper moving from the front end to the rear end of the floating tank 30 toward the rear end of the floating tank 30 in a manner that the scraper lifts off the float. The sludge collection unit installed adjacent to the rear end of the floating tank 30 can receive the float pushed by the scraper. Here, a plurality of scrapers may be formed, and the floats may be continuously pushed while the plurality of scrapers are successively moved.

Screw-type skimmer 32, as shown in Figures 1 and 2, the rotating shaft is rotatably installed on the other upper portion of the floating tank 30; It is formed on the outer periphery of the rotating shaft, and discharges the float of the water surface to the sludge collection unit by the rotation of the rotating shaft, may include a blade having a shape that is formed in a spiral in the longitudinal direction from the outer periphery of the rotating shaft.

The half-pipe skimmer 32 may include a basket made of one half that divides the pipe, and can accommodate a float on the water surface while the basket is immersed in the water to be treated (W). In this case, the above-described sludge collection unit may not be provided separately, and the sludge may be discharged by an outlet formed at the bottom of the basket.

On the other hand, any known type of skimmer 32 other than the above-described form can be applied to the present invention. In addition, the skimmer 32 of the above-described form may be used in combination.

The treated water W that has passed through the floating tank 30 moves to the fiber filtration tank 40. In the fiber filtration tank 40, contaminants contained in the treated water W are filtered once more before discharging the final treated water.

On the other hand, between the floating tank 30 and the fiber filtration tank 40, a sluice gate G may be installed, and the sluice gate G may be opened and closed according to the operation of the sluice driver, and avoided by the opening and closing of the sluice gate G. The water level of the treated water W can be adjusted.

Hereinafter, the fiber filtration tank 40 will be described.

3 and 4 is a view showing a fiber filtration tank 40 of a water treatment device according to an embodiment of the present invention, FIGS. 5 and 6 are cross-sectional views of a fiber filtration tank 40 of a water treatment device according to an embodiment of the present invention , Figures 7 and 8 is a view showing a part of the fiber filtration tank 40 of the water treatment device according to an embodiment of the present invention.

The fiber filter tank 40 includes a water tank, a first fiber filter 100, and a second fiber filter 200.

The water tank accommodates the water to be treated W and may be divided into a first space 40A and a second space 40B by a partition wall 40W.

The fiber filter is an apparatus for filtering contaminants in the water to be treated (W) by passing through the water to be treated (W), and may include a first fiber filter (100) and a second fiber filter (200). The first fiber filter 100 is installed in the first space 40A, and the second fiber filter 200 is installed in the second space 40B.

On the other hand, each of the first fiber filter 100 and the second fiber filter 200, the porous tube (110, 210), fiber bundles (120, 220), the mesh (130, 230), the driving unit (140, 240) It can contain.

First, the water tank of the fiber filtration tank 40 will be described in detail.

FIG. 3 (a) shows the water tank of the fiber filtration tank 40, and FIG. 3 (b) is the first fiber filter 100 and the second fiber filter ( 200) is illustrated.

In addition, Figure 4 (a) shows the water tank of the fiber filtration tank 40, Figure 4 (b) is the first fiber filter 100 and the second fiber in the fiber filtration tank 40 tank of Figure 4 (a) An example of a state in which the filter 200 is installed is shown.

3 and 4, the water tank may be divided into a first space 40A and a second space 40B by a partition wall 40W. The partition wall 40W is formed parallel to the flow direction of the treated water W, and the first space 40A and the second space 40B are flow directions of the treated water W (processed water W) Supply direction). That is, the treated water W that has passed through the floating tank 30 is divided into two branches and flows into the first space 40A and the second space 40B, respectively.

The water tank may be provided with treated water discharge pipes 41A, 41B, backwash water discharge pipes 42A, 42B, and backwash fluid inlet pipes 43A, 43B.

In particular, the first space 40A may be provided with a first treated water discharge pipe 41A, a first backwash water discharge pipe 42A, and a first backwash fluid inlet pipe 43A. In addition, a second treatment water discharge pipe 41B, a second backwash water discharge pipe 42B, and a second backwash fluid inlet pipe 43B may be provided in the second space 40B. Meanwhile, the backwashing fluid may include air and / or water (backwashing water).

The first treated water discharge pipe 41A and the second treated water discharge pipe 41B are formed independently of each other, so that the fluids therein are not mixed with each other. Similarly, the first backwash water discharge pipe 42A and the second backwash water discharge pipe 42B are also formed independently of each other. In addition, the first backwashing fluid inlet pipe 43A and the second backwashing fluid inlet pipe 43B are also formed independently of each other.

Referring to Figure 3 (a), the treated water discharge pipe (41A, 41B) is formed on one surface of the water tank to be connected to the bottom of the water tank, the backwash water discharge pipe (42A, 42B) is on one surface of the water tank to be connected to the interior of the water tank Can be formed. The backwashing fluid inflow pipes 43A and 43B may be formed on one surface of the water tank to be located between the treated water discharge pipes 41A and 41B and the backwashing water discharge pipes 42A and 42B.

The positions of the first treated water discharge pipe 41A and the second treated water discharge pipe 41B may correspond to each other. The positions of the first backwash water discharge pipe 42A and the second backwash water discharge pipe 42B may correspond to each other. The positions of the first backwashing fluid inlet pipe 43A may correspond to the positions of the second backwashing fluid inlet pipe 43B.

Valves are installed in the treated water discharge pipes 41A and 41B, the backwash water discharge pipes 42A and 42B, and the backwash fluid inlet pipes 43A and 43B, so that the fluid flow in the pipe can be controlled.

3 to 6, each of the first space 40A and the second space 40B of the water tank is a filter receiving space 51A, 51B, a backwashing fluid receiving space 52A, 52B, and a treated water receiving space ( 53A, 53B) and perforated pipe receiving spaces 54A, 54B.

3 (a) and 4 (a), as the spaces go from top to bottom, the filter receiving spaces 51A and 51B, the backwashing fluid receiving spaces 52A and 52B, and the perforated tube receiving space 54A, 54B), and the treated water receiving spaces 53A, 53B.

A perforated plate (plate with holes) 70 is installed between the filter receiving spaces 51A, 51B and the backwashing fluid receiving spaces 52A, 52B, and the backwashing fluid receiving spaces 52A, 52B and the treated water receiving space ( Between 53A and 53B, a non-porous plate (plate without holes) 80 may be installed.

The perforated plate 70 installed in the first space 40A may be referred to as a first perforated plate, and the perforated plate 70 installed in the second space 40B may be classified as a second perforated plate.

In addition, the perforated pipe receiving spaces 54A and 54B are formed to connect the filter receiving spaces 51A and 51B and the treated water receiving spaces 53A and 53B, and the perforated pipe receiving spaces 54A and 54B and the backwash fluid receiving space 52A and 52B are separated from each other so that the fluids therein are not mixed with each other.

The filter receiving spaces 51A and 51B are spaces in which the fiber filters 100 and 200 are installed and accommodated. 3 (b) and 4 (b), the fiber filters 100 and 200 may be installed on the perforated plate 70. The filter receiving spaces 51A and 51B may be connected to the backwash water discharge pipes 42A and 42B.

The backwashing fluid receiving spaces 52A and 52B are spaces in which air and / or water for backwashing (washing) of the fiber filters 100 and 200 are accommodated. Air and / or water may move to the filter receiving spaces 51A and 51B through the hole 71 of the perforated plate 70. The backwashing fluid receiving spaces 52A and 52B may be connected to the backwashing fluid inflow pipes 43A and 43B.

The treated water receiving spaces 53A and 53B are spaces where the treated water that has passed through the fiber filters 100 and 200 is collected. The treated water receiving spaces 53A and 53B may be separated from the backwashing fluid receiving spaces 52A and 52B by the non-porous plate 80. Meanwhile, the treated water receiving spaces 53A and 53B may be connected to the treated water discharge pipes 41A and 41B.

The non-porous plate 80 installed in the first space 40A may be referred to as a first non-porous plate, and the non-porous plate 80 installed in the second space 40B may be classified as a second non-porous plate.

The perforated pipe receiving spaces 54A and 54B are installed in the fiber filters 100 and 200 to accommodate vertically extending perforated pipes 110 and 210, and fix the perforated pipes 110 and 210. The treated water passing through the conduits 110 and 210 is moved to the treated water receiving spaces 53A and 53B. Therefore, the perforated pipe receiving spaces 54A and 54B are separated from the backwashing fluid receiving spaces 52A and 52B while connecting the filter receiving spaces 51A and 51B and the treated water receiving spaces 53A and 53B to each other.

As shown in Figure 4 (b), the perforated pipe receiving space (54A, 54B) is provided with a fixing portion 60, the perforated pipe (110, 210) is to be fastened by a bolt or the like with the fixing portion 60 You can. On the other hand, the fixing portion 60 is provided with an opening 61, so that the treated water passes through the opening 61 to the treated water receiving spaces 53A and 53B.

FIG. 5 (a) is a cross-sectional view taken along AA 'in FIG. 3 (a), FIG. 5 (b) is cross-sectional view taken along BB' in FIG. 3 (a), and FIG. 6 (a) is cross-sectional view taken along CC 'in FIG. 3 (a). , Figure 6b) is a cross-sectional view DD 'in Figure 3 (a).

Referring to Figure 5 (a), the backwash water discharge pipe (42A, 42B) is formed to protrude on one surface corresponding to the filter receiving space (51A, 51B) of the water tank. The discharged backwash water may be introduced into the raw water tank 1 through the backwash water circulation line L2 where the backwash water discharge pipes 42A and 42B are connected to the raw water tank 1 (see FIG. 1). In this case, it is efficient because the discharged backwash water is not separately stored or processed.

Referring to FIG. 5B, a plurality of holes 71 penetrating the upper and lower surfaces may be formed in the perforated plate 70. In particular, the plurality of holes 71 are formed to correspond to the positions of the fiber bundles 120 and 220. In addition, the perforated plate 70 is provided with an opening 72 through which the porous tubes 110 and 210 of the fiber filter can pass. The size of the opening 72 corresponds to the diameter of the perforated tubes 110 and 210, and the size of the plurality of holes 71 is smaller than the size of the opening 72.

6 (a) shows backwashing fluid inlet pipes 43A and 43B. The backwash fluid inlet pipes 43A, 43B are connected to the backwash fluid distributors 44A, 44B, and the backwash fluid distributors 44A, 44B are located in the backwash fluid receiving spaces 52A, 52B, and the backwash fluid distributors 44A, Backwashing fluid may be discharged through the distribution hole H formed in 44B). That is, the backwashing fluid may be introduced into the backwashing fluid receiving spaces 52A and 52B through the backwashing fluid inflow pipes 43A and 43B, the backwashing fluid distributors 44A and 44B, and the distribution port H. , It can be moved to the fiber filter (100, 200) side through the hole 71 of the perforated plate 70.

On the other hand, in Figure 6 (a), the fixing part 60 is shown, and the opening 61 of the fixing part 60 is also shown. However, the fixing part 60 and the opening 61 thereof are disposed in the perforated pipe receiving spaces 54A and 54B, and do not contact the backwashing fluid.

6 (b), a non-porous plate 80 is illustrated. Here, the non-porous plate 80 means a plate without a hole connecting the backwashing fluid receiving spaces 52A and 52B and the treated water receiving spaces 53A and 53B, which is a concept that is contrasted with the perforated plate 70. It does not mean that there are no holes.

An opening 81 is formed in the non-porous plate 80, and the opening is connected to the perforated pipe receiving spaces 54A and 54B.

Next, the fiber filter installed in the water tank will be described in detail.

The first fiber filter 100 is installed in the first space 40A of the water tank, and the second fiber filter 200 is installed in the second space 40B of the water tank.

As described above, each of the first fiber filter 100 and the second fiber filter 200, the porous tube (110, 210), the fiber bundle (120, 220), the mesh (130, 230), the driving unit 140, 240).

The perforated pipes 110 and 210 are pipes having a hollow portion therein and extending in one direction, and a plurality of holes connected to the hollow portion are formed on an outer circumferential surface. Here, the perforated pipes 110 and 210 may extend in a direction perpendicular to the bottom of the water tank.

The perforated pipes 110 and 210 may be fixed to the water tank and installed so as not to move, but desorption may be possible. Inside the perforated pipes 110 and 210, a fixed length of a fixed length is installed, and the fixed length can be fastened to the fixed portion 60 of the water tank.

The fiber bundles 120 and 220 include a plurality of fiber media surrounding the porous tubes 110 and 210. The fiber media extends in the longitudinal direction of the perforated tubes 110 and 210, and the fiber bundles 120 and 220 surround the perforated tubes 110 and 210 so that the outer circumferential surfaces of the perforated tubes 110 and 210 may not be exposed. have.

The fiber bundles 120 and 220 may be formed of a known fiber material, and compressed and relaxed by the applied tensile force.

Referring to Figure 7, the fiber bundle (120, 220) may be coupled to the filter media (125, 225). The filter media (125, 225) is a hinge type provided to be foldable up and down on the upper and lower outer peripheries of the inner perforated tubes (110, 210); It can be made of a net type that is fixed by weaving a mesh, which is a fibrous material, on the upper and lower outer peripheries of the inner perforated tubes 110 and 210. 7 shows a hinge member 125 ′ for the filter media 125 to be hinged to the porous tube 110.

Meanwhile, the filter media hooks 125 and 225 may be installed at upper, lower, or upper and lower portions of the fiber bundles 120 and 220.

8, the mesh (130, 230) is formed to surround the fiber bundles (120, 220), it may further surround the filter media (125, 225). In addition, fastening parts 135 and 235 for connecting to the driving parts 140 and 240 may be provided in the meshes 130 and 230. The meshes 130 and 230 may be pulled upward in the upward direction by the operation of the driving units 140 and 240, and thus the fiber bundles 120 and 220 may be compressed inward. In this case, the meshes 130 and 230 may be directly connected to the lower ends of the driving parts 140 and 240 without using the fastening parts 135 and 235 at the tops of the meshes 130 and 230.

The driving units 140 and 240 may provide and release tensile force to the meshes 130 and 230 to raise or lower the meshes 130 and 230. The driving units 140 and 240 may be composed of a cylinder and a piston that are operated by pneumatic or hydraulic pressure, which are commonly used.

 The connecting members 150 and 250 (150 and 250) may be interposed between the fastening parts 135 and 235 of the meshes 130 and 230 and the driving parts 140 and 240. The connecting members 150 and 250 may include horizontal members 151 and 251 and inclined members 152 and 252. The fastening portions of the meshes 130 and 230 may be coupled to the horizontal members 151 and 251. The inclined members 152 and 252 may connect the driving units 140 and 240 and the horizontal members 151 and 251. The inclined members 152 and 252 may be formed in plural, and the plurality of inclined members 152 and 252 may have an inclined surface to converge toward the driving units 140 and 240.

As the driving units 140 and 240 are driven, the connecting members 150 and 250 may rise, and as a result, the meshes 130 and 230 may rise, and the fiber bundles 120 and 220 may be compressed.

Meanwhile, each of the first fiber filter 100 and the second fiber filter 200 may include a plurality of unit filters, and each unit filter may include the above-described porous tubes 110, 210, and fiber bundles 120, 220) and the mesh (130, 230).

For example, the first fiber filter 100 may include six unit filters, and the second fiber filter 200 may include six unit filters. These six unit filters may be arranged in two rows and three columns, but are not limited.

The meshes 130 and 230 of each unit filter may be connected to one connecting member 150 and 250 (horizontal members 151 and 251). 1 to 6, six unit filters are connected to one connecting member 150, 250 (horizontal members 151, 251). In this case, the nets 130 and 230 of the six unit filters may be raised collectively, and the fiber bundles 120 and 220 may be compressed at the same time.

When the fiber bundles 120 and 220 are compressed, the fibers of the fiber bundles 120 and 220 are compacted to increase the filter power. In addition, when the fiber bundles 120 and 220 are crimped (relaxed) (when returned to the original state), the fibers of the fiber bundles 120 and 220 are loosened and the filter power is lost, but the fiber bundles 120 and 220 are lost. Washing becomes possible.

In short, the filtration process is performed by compressing the fiber bundles 120 and 220, and the washing process (backwashing process) can be performed by relaxing the fiber bundles 120 and 220.

As the filtration of the fiber bundles 120 and 220 progresses, the number of contaminants that are filtered and adhered to the fibers increases, and if the contaminant is too large, the filter function decreases, and thus the cleaning of the fiber bundles 120 and 220 is necessary. Therefore, it is necessary to press the fiber bundles 120 and 220 to sufficiently perform the filtration process, and then relax the fiber bundles 120 and 220 to perform the washing process.

The driving unit 140 of the first fiber filter 100 and the driving unit 240 of the second fiber filter 200 may be driven independently of each other. Here, by the driving unit 140 of the first fiber filter 100 and the driving unit 240 of the second fiber filter 200, the mesh 130 of the first fiber filter 100, and the second fiber filter ( The mesh 230 of 200) may be alternately raised. That is, the mesh 130 of the first fiber filter 100 rises, but the mesh 230 of the second fiber filter 200 is maintained in a relaxed state, and thereafter the mesh of the first fiber filter 100 ( 130) is relaxed, the mesh 230 of the second fiber filter 200 may rise.

Accordingly, the filtration process of the first fiber filter 100 and the second fiber filter 200 may be alternately performed, and the fiber filter in which the filtration process is not performed may undergo a washing process.

Specifically, when the filtration process is performed in the first fiber filter 100, a washing process may be performed in the second fiber filter 200. Conversely, when the washing process is performed in the first fiber filter 100, the filtration process may be performed in the second fiber filter 200.

In this way, the filtration process of the first fiber filter 100 and the second fiber filter 200 and the washing process are alternately performed, so that the filtration function of the filtration tank can be continuously exhibited.

Conventionally, after the filtration process in the filtration tank, when the time when the washing process is needed, the filters are all relaxed, so the water treatment process including the filtration process has to be stopped.

However, according to the present invention, since the filtration process and the washing process can occur repeatedly at the same time, the filtration process can be continuously performed by at least one fiber filter, and the water treatment process can be continuously performed without being stopped.

9 and 10 are views showing an operating state of the fiber filtration tank 40 of the water treatment apparatus according to an embodiment of the present invention, and FIGS. 11 and 12 are fiber filtration tanks 40 of the water treatment apparatus according to an embodiment of the present invention It is a partially enlarged view.

9 shows a case where the filtration process of the first fiber filter 100 is in progress, and FIG. 10 shows a case where the filtration process of the second fiber filter 200 is in progress.

In both cases, the water to be treated W may be assumed to be introduced into the first space 40A and the second space 40B. However, in FIGS. 9 and 10, the water to be treated W is shown to be introduced through the pipe, but is not limited thereto.

9, the state of the first fiber filter 100 and the second fiber filter 200 in the first space 40A and the second space 40B of the water tank will be described.

First, the first fiber filter 100 in the first space 40A of the water tank will be described.

The driving unit 140 is operated, the connecting member 150 is raised, and the mesh 130 is raised. The fiber bundle 120 is compressed, and the water to be treated (W) passes through the fiber bundle 120, but contaminants in the water (W) do not pass through the dense fibers and are attached to the fibers. The water to be treated (W) from which the contaminants have been removed is introduced into the porous tube 110 through the hole of the porous tube 110. Thereafter, the treated water W moves to the perforated pipe receiving space 54A and the treated water receiving space 53A as treated water, and is discharged through the treated water discharge pipe 41A as a result.

At this time, the backwash water discharge pipe 42A and the backwash fluid inlet pipe 43A may be closed.

Next, the second fiber filter 200 in the second space 40B of the water tank will be described.

Since the upward tensile force does not occur in the net 230, the net 230 is relaxed. The fiber bundle 220 is relaxed, and the filter power is weakened. Backwashing fluid may be introduced into the backwashing fluid receiving space 52B through the backwashing fluid inlet pipe 43B. At this time, the backwashing fluid may pass through the backwashing fluid distributor 44B. The backwashing fluid is sprayed into the filter receiving space 51B through the hole 71 of the perforated plate 70, but may be sprayed toward the fiber bundle 220 side. When the inlet pressure of the backwashing fluid is large, the backwashing fluid may pass through the fiber bundle 220 at a high speed.

Contaminants attached to the fibers of the fiber bundle 220 according to the flow of the backwashing fluid may be released from the fibers. The backwash water discharge pipe 42B is opened, and the backwash fluid can be discharged through the backwash water discharge pipe 42B.

At this time, the treated water discharge pipe 41B may be closed.

Referring to Fig. 10, the state in the first space 40A and the second space 40B of the water tank will be described.

If the filtration process in the first fiber filter 100 in FIG. 9 and the washing process in the second fiber filter 200 were performed, the opposite is shown in FIG. 10. That is, a washing process is performed in the first fiber filter 100 and a filtration process is performed in the second fiber filter 200.

First, the first fiber filter 100 in the first space 40A of the water tank will be described.

Since the upward tension force does not occur in the mesh 130, the mesh 130 is relaxed. The fiber bundle 120 is relaxed, and the filter power is weakened. The backwashing fluid may be introduced into the backwashing fluid receiving space 52A through the backwashing fluid inlet pipe 43A. At this time, the backwashing fluid may pass through the backwashing fluid distributor 44A. The backwashing fluid is injected into the filter receiving space 51A through the hole 71 of the perforated plate 70, but may be injected toward the fiber bundle 120 side. When the inlet pressure of the backwashing fluid is large, the backwashing fluid may pass through the fiber bundle 120 at a high speed.

Contaminants attached to the fibers of the fiber bundle 120 according to the flow of the backwashing fluid may be released from the fibers. The backwash water discharge pipe 42A is opened, and the backwash fluid can be discharged through the backwash water discharge pipe 42A.

At this time, the treated water discharge pipe 41A may be closed.

Next, the second fiber filter 200 in the second space 40B of the water tank will be described.

The driving unit 240 is operated, the connecting member 250 is raised, and the mesh network 230 is raised. The fiber bundle 220 is compressed, and the water to be treated (W) passes through the fiber bundle 220, but contaminants in the water (W) do not pass through the dense fibers and are attached to the fibers. The water to be treated (W) from which the contaminants have been removed is introduced into the porous tube 210 through the hole of the porous tube 210. Thereafter, the water to be treated W moves to the perforated pipe receiving space 54B and the treated water receiving space 53B as treated water, and consequently discharged through the treated water discharge pipe 41B.

At this time, the backwash water discharge pipe 42B and the backwash fluid inlet pipe 43B may be closed.

As such, the first fiber filter 100 and the second fiber filter 200 are alternately turned into opposite states. The alternating time between the first fiber filter 100 and the second fiber filter 200 may vary depending on the content of contaminants in the water to be treated (W). In addition, the alternation of the first fiber filter 100 and the second fiber filter 200 may be performed every predetermined time. In addition, the alternating time between the first fiber filter 100 and the second fiber filter 200 may be determined by the amount of contaminants attached to each fiber filter. Adjustment of the alternating time between the first fiber filter 100 and the second fiber filter 200 may be performed by the control unit, and the control unit may control the driving units 140 and 240.

11 and 12 is a partially enlarged view of the fiber filtration tank 40 of the water treatment device according to an embodiment of the present invention.

11 shows the compressed fiber bundles 120 and 220, the fiber bundles 120 and 220 flattened inward, and the lower nets 130 and 230 (or media hooks 125 and 225) ascending. However, it hinged and became oblique.

FIG. 12 shows the relaxed fiber bundles 120 and 220, the fiber bundles 120 and 220 widening in the planar direction, and the lower nets 130 and 230 (or media hooks 125 and 225) It became flat.

Meanwhile, FIGS. 10 to 12 are illustratively illustrated, and the shape of the fibrous filter that is filtered or washed, and the shape of the compressed or relaxed fiber bundles 120 and 220 may not necessarily match the drawings.

The scope of protection of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is pointed out again that the protection scope of the present invention may not be limited by obvious changes or substitutions in the technical field to which the present invention pertains.

1: Raw water tank
2: Treatment tank
10: mixing tank
20: coagulation tank
30: floating tank
40: fiber filtration
60: fixing part
70: perforated plate
80: no trial
100, 200; Textile filter
110, 210: perforated pipe
120, 220: fiber bundle
125, 225: Media hanging
130, 230: mesh
135, 235: fastening
140, 240: drive unit
150, 250: connecting member
151, 251: horizontal member
152, 252: inclined member

Claims (7)

A water tank that receives the water to be treated and is divided into a first space and a second space by a partition wall;
A first fiber filter installed in the first space; And
A second fiber filter installed in the second space,
Each of the first fiber filter and the second fiber filter,
A perforated tube extending in a direction perpendicular to the bottom of the water tank and provided with a plurality of holes on an outer circumferential surface;
A plurality of fiber bundles surrounding the porous tube;
A mesh surrounding the fiber bundle; And
It includes a driving unit for raising the mesh so that the fiber bundle is compressed,
By the driving unit, the mesh of the first fiber filter and the mesh of the second fiber filter are alternately raised,
A first treated water receiving space provided at the bottom of the water tank to be connected to the porous pipe of the first fiber filter; And
Further comprising a second treated water receiving space provided at the bottom of the water tank to be connected to the second pipe of the fiber filter,
The first treated water receiving space and the second treated water receiving space are separated by the partition wall,
A first backwash fluid distributor provided between the first space and the first treated water receiving space to supply backwash fluid to the first space; And
A second backwash fluid distributor further provided between the second space and the second treated water receiving space to supply backwash fluid to the second space,
The first backwash fluid distributor and the second backwash fluid distributor are independent of each other,
A first treated water discharge pipe connected to the first treated water receiving space;
A second treated water discharge pipe connected to the second treated water receiving space;
A first backwash water discharge pipe provided in the water tank to be connected to the first space; And
Further comprising a second backwash water discharge pipe provided in the water tank to be connected to the second space,
The first backwash water discharge pipe and the second backwash water discharge pipe are independent of each other,
When the mesh of the first fiber filter rises,
Filtration process is performed in the first fiber filter,
The mesh of the second fiber filter is relaxed,
The backwashing fluid is supplied from the second backwashing fluid distributor to the fiber bundle of the second fiber filter, and the washing process of the second fiber filtering is performed.
The first treated water discharge pipe is opened, and the second treated water discharge pipe is closed,
The first backwash water discharge pipe is closed, and the second backwash water discharge pipe is opened,
The water tank receives the water to be treated from the raw water tank,
The first backwash water discharge pipe and the second backwash water discharge pipe are connected to a backwash water circulation line for circulating backwash water to the raw water tank,
Two-stage fiber filtration tank for water treatment equipment. According to claim 1,
The first space and the second space,
Is disposed in parallel to the flow direction of the water to be treated,
Two-stage fiber filtration tank for water treatment equipment. delete delete delete delete A floating tank receiving the water to be treated from the raw water tank and floating contaminants by the microbubbles;
A skimmer to remove injured contaminants; And
Includes a two-stage fiber filtration tank to filter the treated water from which the injured contaminants have been removed,
The two-stage fiber filtration tank,
A water tank that receives the water to be treated and is divided into a first space and a second space by a partition wall;
A first fiber filter installed in the first space; And
A second fiber filter installed in the second space,
Each of the first fiber filter and the second fiber filter,
A perforated tube extending in a direction perpendicular to the bottom of the water tank and provided with a plurality of holes on an outer circumferential surface;
A plurality of fiber bundles surrounding the porous tube;
A mesh surrounding the fiber bundle; And
It includes a driving unit for raising the mesh so that the fiber bundle is compressed,
By the driving unit, the mesh of the first fiber filter and the mesh of the second fiber filter are alternately raised,
A first treated water receiving space provided at the bottom of the water tank to be connected to the porous pipe of the first fiber filter; And
Further comprising a second treated water receiving space provided at the bottom of the water tank to be connected to the second pipe of the fiber filter,
The first treated water receiving space and the second treated water receiving space are separated by the partition wall,
A first backwash fluid distributor provided between the first space and the first treated water receiving space to supply backwash fluid to the first space; And
A second backwash fluid distributor further provided between the second space and the second treated water receiving space to supply backwash fluid to the second space,
The first backwash fluid distributor and the second backwash fluid distributor are independent of each other,
A first treated water discharge pipe connected to the first treated water receiving space;
A second treated water discharge pipe connected to the second treated water receiving space;
A first backwash water discharge pipe provided in the water tank to be connected to the first space; And
Further comprising a second backwash water discharge pipe provided in the water tank to be connected to the second space,
The first backwash water discharge pipe and the second backwash water discharge pipe are independent of each other,
When the mesh of the first fiber filter rises,
Filtration process is performed in the first fiber filter,
The mesh of the second fiber filter is relaxed,
The backwashing fluid is supplied from the second backwashing fluid distributor to the fiber bundle of the second fiber filter, and the washing process of the second fiber filtering is performed.
The first treated water discharge pipe is opened, and the second treated water discharge pipe is closed,
The first backwash water discharge pipe is closed, and the second backwash water discharge pipe is opened,
The first backwash water discharge pipe and the second backwash water discharge pipe are connected to a backwash water circulation line for circulating backwash water to the raw water tank,
Water treatment device.

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