KR20130030860A - Device and method for removing scum - Google Patents

Device and method for removing scum Download PDF

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Publication number
KR20130030860A
KR20130030860A KR1020110094411A KR20110094411A KR20130030860A KR 20130030860 A KR20130030860 A KR 20130030860A KR 1020110094411 A KR1020110094411 A KR 1020110094411A KR 20110094411 A KR20110094411 A KR 20110094411A KR 20130030860 A KR20130030860 A KR 20130030860A
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KR
South Korea
Prior art keywords
water
scum
pipe
skimmer
opening
Prior art date
Application number
KR1020110094411A
Other languages
Korean (ko)
Inventor
조원택
박석조
문근식
Original Assignee
코오롱글로벌 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 코오롱글로벌 주식회사 filed Critical 코오롱글로벌 주식회사
Priority to KR1020110094411A priority Critical patent/KR20130030860A/en
Publication of KR20130030860A publication Critical patent/KR20130030860A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus

Abstract

PURPOSE: A scum removing apparatus and method is provided to reduce the generated amount of counter water and treatment cost thereof by water flowing into a pipe skimmer together with scum. CONSTITUTION: A scum removing apparatus comprises a pipe skimmer(20) and a wave generator(50). The pipe skimmer comprises a pipe structure. An inlet for scum is located in one side of the circumference of the pipe skimmer in a longitudinal direction. The pipe skimmer is rotatably installed in the center part in a water treatment bath and controls the inflow amount of the scum according to the rotating angle thereof. The scum removing apparatus additionally comprises a skimmer controlling apparatus(30) for rotating the pipe skimmer. The wave generator is installed to spray water toward the water surface form the inside of the water treatment bath.

Description

Device and Method for Removing Scum

The present invention relates to an apparatus and method for removing scum collected on water surface in a water treatment plant.

In general, water treatment facilities include raw water (sewage, etc.) in water treatment tanks, including water treatment tanks such as sedimentation tanks. In the process of raw water, the suspended solids in the raw water float on the water surface due to the light specific gravity, the point of the air bubbles being pushed up, and the scum that emerges is removed by a dedicated removal device.

1 and 2 are front and perspective views showing a general scum removing device, and as shown in FIGS. 1 and 2, the general scum removing device has a pipe skimmer 120 having an elongated straight tube structure. It includes.

The pipe skimmer 120 is disposed so as to be located at the water level of the raw water in a state lying down in the water treatment tank 110 in which the raw water is accommodated, and the cross section of the pipe skimmer 120 is immersed in the raw water. (See FIG. 4) The pipe skimmer 120 is rotatably mounted at both ends thereof on the left and right side walls 112L and 112R of the water treatment tank 110 in such a manner as to be disposed so as to rotate the center of gravity as the rotation center.

The upper portion of the circumference of the pipe skimmer 120 exposed above the surface of the pipe skimmer 120 is provided with an opening 122 for introducing the scum on the surface into the interior.

Pipe skimmer 120 is rotated in both directions by the skimmer operating mechanism (130). 3 is an enlarged view of a portion A of FIG. 1 and shows a skimmer operating mechanism 130. As shown in FIG. 3, the skimmer manipulation mechanism 130 includes a rod 132, an arm 134, and a connecting link 136.

The rod 132 is connected to an upper end of the rod movable unit 138 mounted on the outside of the water treatment tank 110 so as to be positioned above the pipe skimmer 120, and is raised and lowered according to the operation of the rod movable unit 138. The arm 134 protrudes from the outer circumference of the pipe skimmer 120. The connecting link 136 is rotatably connected to the lower end of the rod 132 and the front end of the arm 134 by hinge pins or the like, respectively. According to these, the linear motion of the rod 132 is converted and transmitted to the rotational motion to the pipe skimmer 120, the pipe skimmer 120 is rotated. For reference, the rod movable unit 138 may be of a type configured to operate by power from a driving source such as a motor, or may be of a type configured to operate manually.

4 is a cross-sectional view taken along the line B-B in FIG. As shown in FIG. 4A, when the opening 122 is not immersed in raw water (opening closed), scum on the water surface does not flow into the pipe skimmer 120. On the other hand, as shown in FIG. 4B, when the pipe skimmer 120 is rotated by the skimmer operating mechanism 130 to allow the opening 122 to be immersed in the raw water (opening of the opening), the scum on the surface of the water is opened to the opening ( It is introduced into the pipe skimmer 120 through 122. At this time, the amount of scum inflow is determined according to the degree (opening degree of opening) of the opening 122 being immersed in the raw water.

2, the scum discharge line 140 is connected to at least one of both ends of the pipe skimmer 120 so that the scum introduced into the pipe skimmer 120 is located along the scum discharge line 140. Is discharged.

However, since the scum removing apparatus configured as described above introduces a large amount of raw water along with the scum when the scum is introduced into the pipe skimmer 120 through the opening 122, the amount of return water to be treated is large.

In addition, as illustrated in FIG. 5, when foreign matter (such as vinyl) or a relatively large coarse scum is caught in the opening 122, the scum is not introduced into the pipe skimmer 120 due to the blocking action of the foreign matter or the coarse scum. There is a problem that it is accumulated while not, and only raw water flows into the pipe skimmer 120.

The background art described above is a technique possessed by the inventors for the derivation of the present invention, or a description of the technology acquired in the derivation process of the present invention.

An object of the present invention is to provide a scum removing apparatus and method that can reduce the amount of water (raw water) introduced into the pipe skimmer with scum when scum removal.

According to an embodiment of the present invention, having a tubular structure, an opening for inflow of scum into the inner side is provided along the longitudinal direction, and is rotatable with respect to the center of the water treatment tank while lying on the water level. A pipe skimmer installed to adjust the flow rate of the water scum through the opening according to the rotation angle; There is provided a scum removing device including wave generating means for generating a wave to induce scum flow into the opening on the surface of the water.

Scum removal apparatus according to an embodiment of the present invention may further include a skimmer operation mechanism for rotating the pipe skimmer.

The wave generating means may be configured to send energy for wave generation from the water to the surface of the water.

The wave generating means may include a water injection mechanism installed to inject water toward the surface of the water in the water treatment tank.

The water injection mechanism includes: a water pipe disposed under the pipe skimmer and parallel to the pipe skimmer; The water pipe may include a plurality of nozzles provided to be spaced apart from each other along the longitudinal direction of the water pipe, the injection port toward the water surface.

The water injection mechanism may be installed in the water treatment tank so as to be changeable in position by a movable mechanism.

The movable mechanism includes at least one flexible rod mounted on the water treatment tank and connected to the water injection mechanism, the at least one flexible rod configured to be freely bent and to maintain the bent state. The position may change depending on the deformation.

According to an embodiment of the present invention, by rotating the pipe skimmer installed in the water treatment tank as above to approach the opening to the water surface within the range that the scum on the surface does not flow through the opening of the pipe skimmer; A scum removal method is provided that includes causing a wave to surface to induce scum inflow into an opening approaching the surface.

Since the present invention causes waves on the water surface by the wave generating means to inject scum on the water into the inside of the pipe scumber, the amount of return water generated as water enters with the scum in the pipe skimmer and its There is an advantage that the processing cost can be reduced.

1 and 2 are a front view and a perspective view showing a typical scum removing device.
3 is an enlarged view of a portion A of FIG. 1.
4 is a cross-sectional view taken along line BB of FIG. 1.
5 illustrates a problem of a general scum removing apparatus.
6 and 7 are a front view and a perspective view showing a scum removing device according to the present invention.
8, 9, and 10 are cross-sectional views taken along line CC of FIG. 6, illustrating a scum removing process by the scum removing apparatus according to the present invention.
11 shows a state in which the position of the water injection mechanism is changed by the movable mechanism in the state of FIG. 6.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may vary depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents of this specification as a whole.

6 and 7 are a front view and a perspective view showing a scum removing device according to the present invention.

6 and 7, reference numeral 20 denotes a pipe skimmer, 30 denotes a skimmer operation mechanism, 40 denotes a scum discharge line, and 50 denotes a wave generating means.

The pipe skimmer 20 has the structure of a straight round tube. The pipe skimmer 20 is positioned to lie horizontally inside the water treatment tank 10 in which raw water is received. In addition, the pipe skimmer 20 is placed at the water level of the raw water in such a lying state, and the cross section of the pipe skimmer 20 is immersed in the raw water except for the upper portion thereof (see FIG. 8). Both ends are rotatably mounted on the left and right two side walls 12L and 12R of the water treatment tank 10 in such a manner as to be rotated about the center. The upper portion of the circumference of the pipe skimmer 20 exposed to the water surface is provided with an opening 22 for introducing the scum on the water surface in the longitudinal direction.

For reference, the water treatment tank 10 may be a precipitation tank (precipitator) or the like. The openings 22 of the pipe skimmer 20 are not provided at regular intervals such that a plurality of the plurality of openings 22 are spaced apart from each other along the longitudinal direction of the pipe skimmer 20, but one is formed to be long along the length direction of the pipe skimmer 20. Can be.

The skimmer operating mechanism 30 is used to rotate the pipe skimmer 20 in both directions. The skimmer operating mechanism 30 is a rod (132 of FIG. 3), the arm (134 of FIG. 3), the connecting link (136 of FIG. 3) and the rod movable unit (138 of FIG. 3) described above with reference to FIG. It may include. In addition, the rod movable unit here may also be of a type configured to operate by power from a driving source such as a motor, or may be of a type configured to operate manually.

The scum discharge line 40 is connected to at least one of both ends of the pipe skimmer 20. The scum discharge line 40 serves to discharge the scum introduced into the pipe skimmer 20 to a desired place.

For reference, the pipe skimmer 20 may have a structure in which the inner diameter gradually expands toward the end where the scum discharge line 40 is connected (a structure in which scum discharge is smoothly performed).

The wave generating means 50 causes a wave to induce scum inflow into the opening 22 on the surface of the raw water. The wave generating means 50 includes a water injection mechanism 51 for injecting water at a constant water pressure from the water of the raw water to the water surface side upward. The water injection mechanism 51 includes a water pipe 52 and a plurality of nozzles 53.

The water pipe 52 is formed to be elongate. The water pipe 52 is disposed to be parallel to the pipe skimmer 20 at the lower side of the pipe skimmer 20. Water pipe 52 receives water from a water source, and water from the water source flows along the interior of this water pipe 52.

The nozzle 53 is provided in the water supply pipe 52 so that the injection hole may face the water surface of the raw water, and water flowing along the inside of the water supply pipe 52 is sprayed to the water surface of the raw water through the nozzle 53. Preferably, the nozzles 53 are arranged at regular intervals so as to be spaced apart from each other along the longitudinal direction of the water pipe 52.

The water injection mechanism 51 is installed in the water treatment tank 10 by the movable mechanism 54 so as to change the position with respect to the pipe skimmer 20.

The movable mechanism 54 includes two mounting holes 55 and a flexible rod 56. Flexible rod 56 is configured to be able to bend freely and continue to bend, for example, used as a neck portion connecting the base and the lamp in order to be able to freely adjust the angle of the light in the floor lamp It may be. The ends of the flexible rod 56 are respectively connected to both sides of the water pipe 52 in the longitudinal direction, and are mounted on the water treatment tank 10 by the mounting holes 55 in this state.

The scum removing apparatus according to the present invention as described above removes the scum as follows.

As shown in FIG. 8, when the opening 22 is not submerged in raw water, scum on the water surface does not flow into the pipe skimmer 20.

In this state, as shown in FIG. 9, the skimmer 20 rotates the pipe skimmer 20, but the scum on the water surface does not flow into the pipe skimmer 20 through the opening 22. The opening 22 is as close to the water surface as possible.

Next, as shown in FIG. 10, the water injection mechanism 51 is operated. Then, water is sprayed to the water surface side in the nozzle 53, and a wave is generated by the water from this nozzle 53 on the water surface. At this time, the scum on the water surface is introduced into the pipe skimmer 20 through the opening 22 under the influence of the wave generated in the water surface.

As described above, since the scum removing apparatus according to the present invention causes the scum to flow into the water and introduces the scum into the pipe cummer 20, the amount of raw water introduced with the scum into the pipe skimmer 20 is significantly reduced. Can be.

As shown in FIG. 11, when the flexible rod 56 is deformed and the water jet mechanism 51 is moved, the wave generated by the water jet mechanism 51 on the water surface is sized (induces scum to be introduced into the pipe skimmer through the opening). Force) is changed. For example, when the water jet mechanism 51 is lowered and separated from the pipe skimmer 20, the wave generated on the water surface is relatively reduced. That is, according to the positional movement of the water injection mechanism 51, the scum can be smoothly introduced into the pipe skimmer 20, and the amount of raw water introduced with the scum can be more easily adjusted. will be.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

For example, in the above description, the wave generating means 50 causes water to wave on the surface using water, but the wave generating means 50 may include an air injection mechanism instead of the water injection mechanism 51. Alternatively, the wave generating means 50 may include a mechanism for transmitting sound waves to the water surface by using an underwater speaker. On the other hand, they may not be located underwater, but may be positioned to send energy for wave generation towards the surface on the surface.

In addition, although the movable mechanism 54 has been described as including the flexible rod 56 in the above, instead, the movable mechanism 54 includes front, rear, left, and right slide units, or a combination of two or more thereof. It may be.

10: water treatment tank 20: pipe skimmer
22: opening 30: skimmer operating mechanism
40: scum discharge line 50: wave generating means
51: water injection mechanism 52: water pipe
53: nozzle 54: movable mechanism

Claims (8)

It has a tubular structure, and an opening for introducing a scum into the inner side is provided along a longitudinal direction, and is rotatably installed with respect to the center in a state lying down at the height of the water in the water treatment tank so that the opening is made according to the rotation angle. A pipe skimmer with an inflow rate of the water whiskey through the water;
Scum removing device including a wave generating means for causing a wave to induce scum flow into the opening on the water surface. The method according to claim 1,
And a skimmer operation mechanism for rotating the pipe skimmer. The method according to claim 1 or 2,
The wave generating means is scum removal device configured to send energy for wave generation from the water to the water surface. The method according to claim 1 or 2,
The wave generating means includes a scum removing device installed in the water treatment tank to inject water toward the surface of the water in the water. The method according to claim 4, wherein the water injection mechanism,
A water pipe disposed below the pipe skimmer to be parallel to the pipe skimmer;
And a plurality of nozzles provided on the water pipe so as to be spaced apart from each other along the longitudinal direction of the water pipe, and the injection holes are directed toward the water surface. The method of claim 4,
The scum removal device is installed in the water treatment tank so that the position can be changed by the movable mechanism. The method of claim 6,
The movable mechanism includes at least one flexible rod mounted on the water treatment tank and connected to the water injection mechanism, the at least one flexible rod configured to be freely bent and to maintain the bent state. Scum removing device whose position changes according to deformation. Rotating the pipe skimmer installed in the water treatment tank as set forth in claim 1 to access the opening to the water surface within a range in which the scum on the water surface does not flow through the opening of the pipe skimmer;
Causing the scum to flow into an opening approaching the water surface by causing a wave to surface the scum.
KR1020110094411A 2011-09-20 2011-09-20 Device and method for removing scum KR20130030860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110094411A KR20130030860A (en) 2011-09-20 2011-09-20 Device and method for removing scum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110094411A KR20130030860A (en) 2011-09-20 2011-09-20 Device and method for removing scum

Publications (1)

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KR20130030860A true KR20130030860A (en) 2013-03-28

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KR1020110094411A KR20130030860A (en) 2011-09-20 2011-09-20 Device and method for removing scum

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101712564B1 (en) * 2016-07-29 2017-03-07 이에스피 주식회사 Floating type scum removing apparatus
KR102206214B1 (en) 2020-09-07 2021-01-21 현성덕 Scum removal device for water treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101712564B1 (en) * 2016-07-29 2017-03-07 이에스피 주식회사 Floating type scum removing apparatus
KR102206214B1 (en) 2020-09-07 2021-01-21 현성덕 Scum removal device for water treatment

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