KR101205400B1 - Apparatus for removing adulteration attached to screen part automatically and discharging the removed adulteration automatically - Google Patents

Abstract

Mechanism removal device according to the present invention can automatically remove the debris attached to the screen portion, it is possible to automatically discharge the debris sedimented and collected or accumulated in the lower portion of the treatment tank and the lower portion of the screen portion to the outside maintenance of the device Has the advantage of being convenient.

Description

Applicator for removing adulteration attached to screen part automatically and discharging the removed adulteration automatically}

The present invention relates to an apparatus for removing impurities, more specifically, to automatically remove impurities attached to the screen part in the process of removing the impurities contained in the raw water, and automatically removing the impurities caught by the removed impurities and the screen part. The present invention relates to an apparatus for removing impurities, which can be discharged to the outside.

Generally, raw water such as manure, sewage, and livestock wastewater includes soil, various seeds, metals, wood, paper, plastics, hair, animal hair, straw, and other organic and inorganic solids (hereinafter referred to as 'crude'). This includes, in order to treat the raw water, you need to remove the impurities from the raw water.

To remove the contaminants from the raw water, the raw water passes through the screen portion to filter out the contaminants. 1 shows an apparatus for removing such contaminants. The apparatus 10 sucks raw water into the treatment tank 2 using the suction force of the pump P, and after the sucked raw water passes through the screen portion 4 installed in the treatment tank 2, By allowing the water to be discharged into the contaminants contained in the raw water is filtered by the screen portion 4 and the water is passed through the screen portion 4 to be discharged to the rear end. At this time, since the raw water is introduced into the upper portion of the treatment tank 2 and is discharged to the outside through the lower portion, the raw water flows from the upper portion of the treatment tank 2 to the lower portion. Reference numeral 6 in the drawing denotes an inflow pipe through which raw water flows into the treatment tank 2, and 7 denotes an outlet pipe through which raw water is discharged from the treatment tank 2.

The contaminants filtered by the screen portion 4 remain attached to the screen portion 4 or are deposited on the inner bottom 4a of the screen portion 4 by gravity. Such contaminants should be removed periodically. For this purpose, the cover 3 of the treatment tank 2 should be opened, the screen 4 should be lifted out, and the screen 4 should be cleaned. Therefore, the apparatus 10 has a problem that it is difficult to maintain and takes a lot of time and money to clean.

On the other hand, although phosphorus (P) is often contained in raw water, in order to remove phosphorus (P), a coagulant must be mixed with raw water. Therefore, there is a need for an apparatus capable of effectively mixing the flocculant into the raw water.

The present invention has been devised to solve the above problems, and an object thereof is to provide an apparatus for removing impurities, which can automatically remove and discharge the impurities caught by the screen unit, thereby simplifying maintenance.

Still another object of the present invention is to provide an apparatus for removing impurities, which can effectively mix flocculant in raw water.

Still another object of the present invention is to provide an apparatus for removing contaminants that allows floc to be effectively formed by injecting a flocculant into raw water and then causing rapid stirring, slow stirring, and flow of a steady state. In addition, the present invention also has an object to provide a compact removal device that is compact in size and does not require a separate power source, even though a single device can perform the removal of impurities and the floc formation.

Still another object of the present invention is to provide an apparatus for removing impurities, which is simple in structure, hardly occurs, easy to manufacture, and low in manufacturing cost.

In order to achieve the above object, the apparatus for removing impurities according to the present invention, the treatment tank; A screen unit installed inside the treatment tank to filter out impurities contained in raw water; And a raw water supply pipe for supplying the raw water into the screen unit. The impurities contained in the raw water introduced through the raw water supply pipe are filtered by the screen part, and the raw water from which the impurities are removed is discharged through the upper part of the treatment tank after the screen is removed. It is selectively discharged to the outside through the dust discharge pipe installed in the lower part of the unit.

The contaminant removal device may be provided at a lower portion of the treatment tank, and may include a contaminant discharge pipe for selectively discharging contaminants deposited on the bottom of the treatment tank to the outside.

The raw water supply pipe is installed to extend through the lower portion of the treatment tank to the inside of the screen portion, it is preferable that the bounding plate is installed at the end facing the end. At this time, the screen unit is integrally installed along the edge of the bounding plate. As a result, the raw water introduced from the raw water supply pipe hits the bounding plate and flows downward to form a circular or arc-shaped flow, so that the impurities are filtered out by the screen portion, and the impurities attached to the screen portion are separated from the screen portion by the flow. .

The lower surface of the bounding plate facing the end of the raw water supply pipe is preferably inclined downward toward the rim from the center.

The debris removal device may include a sensor installed in the lower portion of the screen unit, the sensor is to measure the pressure in accordance with the amount of the trapped or accumulated in the interior of the screen portion and the opening and closing of the valve interposed in the discharge pipe according to the measured pressure Allow it to be adjusted.

Further, the screen portion may be composed of a perforated plate and a strainer. The perforated plate is formed with a first through hole of a predetermined size, and has a rigidity that is not deformed by the flow of raw water. At this time, the strainer is installed in close contact with the inner surface of the perforated plate, the second through hole is formed in the strainer. The second through hole is smaller in size than the first through hole. The impurities are filtered while the raw water flows through the second through hole and the first through hole sequentially and flows out of the screen portion.

On the other hand, the contaminant removal device may be provided with a coagulant mixing means for injecting a coagulant into the raw water flowing in the raw water supply pipe and mixing it. The flocculant mixing means, the flocculant mixing pipe interposed on the path of the raw water supply pipe; And a baffle plate having a predetermined sized through hole and installed at predetermined intervals within the coagulant mixing tube to change a flow passage cross-sectional area of the coagulant mixing tube. In addition, one side of the coagulant mixing tube is provided with a coagulant injection member for injecting a coagulant. Accordingly, the raw water flowing into the coagulant mixing tube can be rapidly stirred in the process of passing through the through hole and the coagulant injected through the injection member.

Another aspect of the present invention provides a method for removing contaminants, comprising: (a) a treatment tank, a screen unit installed inside the treatment tank to filter out contaminants contained in the raw water, and an apparatus for supplying the raw water to the screen unit. Preparing a; (b) allowing raw water to flow into the screen portion through the raw water supply pipe; (c) the contaminants contained in the raw water are filtered by the screen part according to the flow of raw water in the screen part, and the filtered contaminants flow downward to be accumulated in the lower part of the screen part, and the raw water passing through the screen part is Discharging through the top; And (d) opening the contaminant discharge pipe connected to the lower part of the screen part so that the contaminant accumulated on the lower part of the screen part is discharged to the outside by opening a valve interposed in the contaminant discharge pipe.

The method for removing the contaminants may include discharging contaminants deposited on the bottom of the treatment tank to be discharged to the outside by opening a valve interposed in the contaminant discharge pipe.

A bounding plate is installed at the upper end of the screen part. In this case, in step (c), the raw water flowing from the raw water supply pipe collides with the bounding plate to generate a circular or arc-shaped raw water flow in the screen part. As a flow, the impurities contained in the raw water are filtered out by the screen portion, and the impurities attached to the screen portion are also separated from the screen portion.

The step (b) may include injecting a coagulant into the coagulant mixing tube interposed on the path of the raw water supply pipe, wherein the injection is made in a state in which the flow path cross-sectional area is changed to promote mixing of the coagulant and the raw water. desirable.

The raw water supply pipe is installed to penetrate the lower portion of the treatment tank to extend into the screen portion, and the raw water from which the contaminants are removed through the screen portion is discharged to the outside after flowing to the upper portion of the treatment tank, but the flow is in a rectified state. desirable.

The apparatus for removing impurities according to the present invention has the following effects.

First, it is possible to automatically remove the impurities attached to the screen portion. In addition, the debris removed from the screen portion, the debris collected or accumulated in the bottom (or bottom) of the screen portion, and the contaminants deposited on the bottom (or bottom) of the treatment tank can be automatically discharged to the outside, thereby maintaining It is convenient and the maintenance cost is small.

Second, the flocculant can be effectively mixed with the raw water. Accordingly, the coagulation reaction can be further promoted in connection with subsequent processes such as slow stirring or mixing tank.

Third, after the flocculant is injected into the raw water, the floc can be effectively formed by the rapid stirring, the slow stirring, and the flow of the steady state.

Fourth, although a single device can perform the removal of contaminants from the raw water and flocculation, the size is compact and no separate power source is required.

Fifth, the structure is simple, almost no failure occurs, easy to manufacture, and low production cost.

1 is a cross-sectional view showing the main configuration of the debris removal device according to the prior art.
2 is a cross-sectional view showing the main configuration of the apparatus for removing a contaminant according to a first embodiment of the present invention.
3 is an enlarged view of a portion A of FIG. 2.
4 is a plan view showing a perforated plate provided in the screen portion of FIG.
5 is a plan view illustrating a strainer provided in the screen unit of FIG. 2;
6 is an enlarged view of a portion B of FIG. 2.
7 is a cross-sectional view showing the main configuration of the contaminant removal device according to a second embodiment of the present invention.
8 is a cross-sectional view showing a flocculant mixing means provided in the contaminant removing device of FIG.
Figure 9 is a perspective view showing a baffle plate and connecting bar provided in the flocculant mixing means of FIG.

Hereinafter, 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 present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

The present invention is characterized in that the raw water is supplied through the raw water supply pipe extending through the lower portion of the treatment tank and into the screen portion, and the raw water from which the contaminants are removed is discharged through the outlet pipe interposed on the upper portion of the treatment tank. Accordingly, while the raw water flows inside the screen portion, contaminants are filtered out (captured) by the screen portion and water is discharged to the outside of the screen portion. At this time, the impurities attached to the screen part are removed by the flow of raw water and accumulated at the bottom (bottom) of the screen part, and the accumulated impurities can be automatically discharged through the junk discharge pipe. That is, by opening the valve interposed in the contaminant discharge pipe can be automatically discharged.

2 is a cross-sectional view showing a main configuration of an apparatus for removing a contaminant according to a first embodiment of the present invention.

Referring to the drawings, the debris removing apparatus 100 includes a treatment tank 10, a screen unit 20 installed inside the treatment tank 10, and a raw water supply pipe for supplying water into the screen unit 20 ( 30).

The treatment tank 10 has a cylindrical shape, in which raw water is received and has an inner space in which the screen unit 20 is installed. The raw water supply pipe 30, the outflow pipe 11, and the pollutant discharge pipe 12 are connected to the treatment tank 10, respectively.

The outflow pipe 11 is a pipe through which raw water from which contaminants have been removed is preferably disposed above the treatment tank 10.

The pollutant discharge pipe 12 is a pipe through which contaminants precipitated at the bottom (or bottom) of the treatment tank are discharged and is installed at the bottom of the treatment tank 10. The contaminant discharge pipe 12 is provided with a valve 13, preferably an electric valve, and the valve 13 is opened or closed manually or automatically. The contaminants are contaminants contained in the raw water passing through the screen unit 20 and refer to materials deposited on the bottom of the treatment tank 10 by gravity.

On the other hand, in order to facilitate the discharge of contaminants through the contaminant discharge pipe 12, the bottom of the treatment tank 10 is preferably formed to form a downward slope toward the contaminant discharge pipe 12.

The screen unit 20 is installed inside the treatment tank 10 to filter out contaminants contained in raw water. The screen portion 20 is preferably installed so that the bottom 23 is spaced apart from the bottom of the treatment tank 10 by the support member 28. The support member 28 is a member which is installed at predetermined intervals to support the bottom 23 connected to the screen 20, and contaminants are contaminated through the space between the bottom 23 and the bottom of the treatment tank 10. It may flow to the discharge pipe (12).

The contaminant discharge pipe 24 is connected to the lower portion of the screen portion 20, preferably the bottom 23 of the screen portion 20. It is preferable that the bottom 23 is inclined downward toward the contaminant discharge pipe 24 so that the contaminants collected or accumulated on the bottom 23 can be easily discharged.

In addition, the raw water supply pipe 30 is provided with a pump (P) and a valve 32 for supplying raw water, the raw water supply pipe 30 extends into the screen portion 20 through the lower portion of the treatment tank 10. It is preferably installed so as to bend upward. That is, the end of the raw water supply pipe 30 is preferably installed to face the bounding plate 40.

On the other hand, the contaminant discharge pipe 24 is provided with a valve 29, preferably an electric valve, for controlling the discharge of the contaminant. The valve 29 may be opened or closed according to the signal of the sensor 14, the sensor 14 detects the pressure in accordance with the amount of contaminants trapped in the screen portion 20 or accumulated in the lower floor to detect the signal. When the signal exceeds a predetermined value, the controller opens the valve 29 to discharge the contaminants to the outside.

In order to control the discharge of the contaminants, a sensor 14 for detecting pressure depending on the amount of trapped or accumulated condensate may be used, but a sensor for detecting the height or concentration of the contaminant may be used. Since these sensors are readily available on the market, detailed descriptions will be omitted here.

Meanwhile, the bounding plate 40 may be installed at the upper end of the screen unit 20. The bounding plate 40 is installed to face the end of the raw water supply pipe 30, and the screen unit 20 is integrally installed along the circumference of the bounding plate 40.

The bounding plate 40 preferably has an inclined bottom surface from the center toward the rim. That is, the bottom surface of the bounding plate 40 preferably has a '⌒' shape, so that the raw water that strikes the bounding plate 40 forms a circular or arc-shaped flow. The dotted arrows in FIG. 2 indicate the flow within the screen portion 20.

The raw water introduced from the raw water supply pipe 30 in accordance with the driving of the pump (P) hits the bounding plate 40 and flows down (reflux hydraulic pressure) to form a circular or circular arc-shaped flow. The contaminants that are filtered out (collected) by the screen unit 20 and attached to the screen unit 20 are also separated from the screen unit 20 and are accumulated on the lower bottom 23 of the screen unit 20.

Preferably, the screen unit 20 includes a perforated plate 21 and a strainer 25 provided in close contact with the inner surface of the perforated plate 21. In a cylindrical shape, the inner surface of the perforated plate 21 is in close contact with the screamer 25, and then the upper and lower and both ends are welded or fastened with a bolt 27 or the like to form the screen portion 20.

The perforated plate 21 is a plate that is rigid enough not to be deformed by the flow of raw water, and the perforated plate 21 has a plurality of first through holes 22 having a predetermined size, for example, about 10 mm in diameter. .

The strainer 25 is a mesh net in which a plurality of second through holes 26 are formed. The second through hole 26 has a size smaller than the first through hole 22, for example, 40 μm to 250 μm in diameter. While the raw water passes through the second through hole 26 and the first through hole 22 sequentially, a contaminant larger than the second through hole 26 is filtered by the screen unit 20.

7 is a cross-sectional view showing the main configuration of the contaminant removing device according to a second embodiment of the present invention.

Referring to the drawings, the apparatus 200 includes a treatment tank 110, a screen unit 120 installed inside the treatment tank 110, and a raw water supply pipe 130 for supplying raw water into the screen unit 120. And a coagulant mixing means 150 for injecting a coagulant into the coagulant mixing tube 151 interposed on the path of the raw water supply pipe 130 and mixing the coagulant. Among the reference numerals of FIG. 7, the same elements as those of FIGS. 2 to 6 denote the same components having the same role.

The apparatus 200 is provided with a flocculant mixing means 150 for injecting and mixing the flocculant, the diameter and height of the treatment tank 110 and the height of the screen unit 120 is low compared to the first embodiment Has Accordingly, the mixed water (mixed with the raw water and the coagulant) rapidly stirred by the coagulant mixing means 150 is slowly stirred inside the screen unit 120 and then discharged from the screen unit 120, and then the treatment tank ( The floc is formed while flowing in a rectified state toward the outlet pipe 11 interposed in the upper portion of the 110. As such, when the rapid stirring, the slow stirring, and the flow of the rectified state are sequentially performed, flocs may be effectively generated. The present invention has the advantage that the device is compact while this process is accomplished by one device.

The treatment tank 110 has a cylindrical shape, and the mixed space is accommodated therein and has an inner space in which the screen unit 120 is installed. The raw water supply pipe 130, the outflow pipe 11, and the pollutant discharge pipe 12 are connected to the treatment tank 110, respectively.

The outflow pipe 11 is a pipe through which the mixed water from which the contaminants have been removed is discharged, and the contaminant discharge pipe 12 is a pipe through which the contaminants deposited in the mixed water are discharged. The outflow pipe 11 is the same as the outflow pipe 11 of the first embodiment, and the contaminant discharge pipe 12 is the same as the contaminant discharge pipe 12 of the first embodiment, and thus a detailed description thereof will be omitted.

The screen unit 120 is installed inside the treatment tank 110 to filter out contaminants included in the mixed water. The lower part, preferably the bottom 23 of the screen unit 120 is provided with a contaminant discharge pipe 24 for discharging the contaminant. The bottom 23 is preferably inclined downward toward the contaminant discharge pipe 24 so that the contaminants can be easily discharged.

On the other hand, a valve 29 is installed in the contaminant discharge pipe 24, the process of opening and closing the valve 29 by the sensor 14 is the same as that of the first embodiment.

As described above, the screen portion 120 is lower in height and relatively larger in diameter than the screen portion 20 in the first embodiment. Therefore, the screen unit 120 has a relatively large internal space is formed, so that the flow of water is gentle in the interior of the screen unit 120 is a slow stirring and the outside (that is, the upper side and the screen portion of the bounding plate 40) In the outer direction of 120), the mixed water flows in the rectified state. In addition, a gentle slow stirring is performed inside the screen unit 120.

Here, the rectified state refers to the flow of the fluid flowing smoothly without a rapid change of the flow, slow stirring means a relatively gentle stirring compared to the rapid stirring made in the flocculant mixing means 150.

It is preferable that the bounding plate 40 is installed at the top of the screen unit 120. The structure of the bounding plate 40 is the same as that of the bounding plate 40 of the first embodiment. As the pump P is driven, the mixed water introduced through the raw water supply pipe 130 and the flocculant mixing means 150 hits the bounding plate 40 and then flows down (reflux hydraulic pressure) while being circular or circular. It forms a flow of shape, in which the contaminants are filtered (collected) by the screen unit 120 and the contaminants attached to the screen unit 120 are also separated from the screen unit 120 to the bottom 23. Will accumulate.

Preferably, the screen unit 120 includes a perforated plate 21 and a strainer 25 installed in close contact with the inner surface of the perforated plate 21. The cylindrically perforated plate 21 and the strainer 25 have the same structure as the perforated plate 21 and the strainer 25 of the first embodiment.

Raw water is introduced into the screen unit 120 through the raw water supply pipe 130 and the flocculant mixing means 150, and the raw water supply pipe 130 penetrates the lower portion of the treatment tank 110 to form the interior of the screen unit 120. After extending, the ends are bent upwards. Therefore, the mixed water introduced from the end of the raw water supply pipe 130 hits the bounding plate 40 and flows down to form a circular or circular arc-shaped flow, and the contaminants are formed by the screen unit 120 according to the flow. The contaminants that were filtered (collected) and attached to the screen portion 120 are also separated from the screen portion 120 and are accumulated on the bottom 23.

On the other hand, the coagulant mixing means 150 includes a coagulant mixing tube 151 and a baffle plate 155 provided inside the coagulant mixing tube 151. As is known, in order to remove phosphorus (P) contained in raw water, flocculants must be mixed with raw water to form flocs. The flocculant forms flocs by agglomerating phosphorus present in the raw water and its kind and components are already widely known and commercially available.

The flocculant mixing pipe 151 is interposed on the path of the raw water supply pipe 130. Therefore, the raw water flowing into the raw water supply pipe 130 is introduced into the screen unit 120 through the end of the raw water supply pipe 130 through the flocculant mixing pipe 151. Preferably, an inlet is formed in the coagulant mixing tube 151 and a coagulant is injected through the inlet.

A plurality of baffle plates 155 are installed at predetermined intervals inside the coagulant mixing pipe 151. The baffle plate 155 is formed with a through hole 156 of a predetermined size. Since the raw water and the coagulant flowing through the coagulant mixing tube 151 pass through the through hole 156, the flow rate difference is changed drastically according to the difference in the cross-sectional area of the coagulant mixture, so that the inside of the coagulant mixing tube 151 is indicated by a dotted arrow. As the flow is formed, rapid stirring is performed to promote mixing of flocculant and raw water.

It is preferable that the plurality of baffle plates 155 are connected to each other by the connecting bar 157. The connecting bar 157 is inserted into a groove formed at the outer edge of the baffle plate 155 to connect the plurality of baffle plates 155 with each other. Accordingly, the outer edge of the baffle plate 155 may be in close contact with the inner surface of the coagulant mixing tube 151. In addition, since the connecting bar 157 connects the plurality of baffle plates 155 to each other, it is convenient to install the inside of the coagulant mixing tube 151.

Preferably, the injection hole is provided with an injection member 153. The injection member 153 is installed to extend into the inside of the flocculant mixing tube 151, the end of which is bent in the opposite direction to the flow direction of the raw water, that is, upstream. Since the end of the injection member 153 is bent upstream, mixing of the flocculant and the raw water can be made more effective.

Next, an operation process of the apparatus 200 will be described. Since the operation of the device 100 of the first embodiment can be easily understood by those skilled in the art by referring to the operation of the device 200, a description of the operation of the device 100 will be omitted.

First, the valve 32 is opened, the pump P is operated to supply raw water, and the coagulant is injected into the coagulant mixing tube 151 through the injection member 153. The raw water and the flocculant are mixed while flowing toward the treatment tank 110, and this mixing is further promoted because the flow path cross-sectional area changes drastically. That is, since the plurality of baffle plates 155 are provided in the coagulant mixture pipe 151 at predetermined intervals, the flow rate difference is rapidly changed due to the difference in the cross-sectional area of the flow path while the raw water and the coagulant pass through the baffle plate 155. Stirring is done.

The mixed water in which the rapid stirring is performed is introduced into the screen unit 120 through the end of the raw water supply pipe 130. The mixed water introduced into the screen unit 120 flows downward while hitting the bounding plate 40 to form a circular or arc-shaped flow, so that the contaminants included in the mixed water flow into the screen unit 120. By-products that are filtered out and attached to the screen unit 120 are also separated from the screen unit 120. The contaminants separated from the screen unit 120 flow down by gravity and are accumulated on the bottom bottom 23 of the screen unit 120. At the same time, slow stirring is performed by the flow inside the screen unit 120.

The sensor 14 installed in the lower portion of the screen unit 120 measures the pressure according to the amount of contaminants collected in the screen unit 120 or accumulated on the lower bottom 23. When the pressure exceeds a predetermined reference value, the sensor 14 transmits a signal to the controller (not shown), and the controller opens the valve 29 to discharge the contaminants to the outside.

On the other hand, the mixed water withdrawn from the screen unit 120 flows while forming a flow of rectified toward the outlet pipe 11 interposed on the upper portion of the treatment tank 110 and discharged to the outside through the outlet pipe (11). do. As described above, phosphorus (P) contained in the mixed water is aggregated into a floc, and the rectified flow promotes the aggregation.

In addition, some of the contaminants contained in the mixed water passing through the screen unit 120 is precipitated at the bottom of the treatment tank 110 by gravity, and the precipitated contaminants may be discharged to the outside through the contaminant discharge pipe 12. have. This may be performed by automatically opening or closing the valve 13 interposed in the pollutant discharge pipe 12 periodically or automatically according to the amount of the pollutant precipitated.

10, 110: treatment tank 20, 120: screen portion
30, 130: raw water supply pipe 40: bounding plate
150: flocculant mixing means 100, 200: dust removal device

Claims (6)

Treatment tank;
A screen unit installed inside the treatment tank to filter out impurities contained in raw water; And
Includes; raw water supply pipe for supplying the raw water into the screen portion,
The impurities contained in the raw water introduced through the raw water supply pipe are filtered by the screen part, and the raw water from which the impurities are removed is discharged through the outflow pipe interposed in the treatment tank after passing through the screen part. And then selectively discharged to the outside through the waste discharge pipe installed in the lower portion of the screen,
Raw water supply pipe is installed to extend into the inside of the screen portion and bounding plate is installed where it faces the end, the screen portion is integrally installed along the edge of the bounding plate,
The raw water introduced from the raw water supply pipe flows downward after hitting the bounding plate and forms a circular or arc-shaped flow so that the impurities are filtered out by the screen portion and the impurities attached to the screen portion are separated from the screen portion by the flow. A dust removal device characterized in that.

delete delete delete delete delete

Images