KR20240039735A - Scum skimmer for water treatment - Google Patents

Abstract

The present invention relates to a scum skimmer for water treatment, and the present invention includes an installation fixture, a worm reducer, a central support, a fixed block, a scum pipe, a rotation guide, a scum discharge pipe, and a fixed support means, so that it has a large rotation radius for discharge. Since rotation is not required, it is possible to prevent stagnation of scum on the water surface and reverse flow of water. This allows scum floating on the surface of the coagulation pond to flow smoothly into the scum inlet side of the scum pipe and then flows into the exact center of the longitudinal direction of the scum pipe. The scum removal efficiency can be improved by directing the flow to the side and discharging it through the downward scum discharge pipe. Meanwhile, the lower part is installed on the rear wall with an anchor structure, and the installation fixture and scum pipe have a constant upward direction compared to the central part on both sides. By applying a fixed support means of a turnbuckle structure that supports the scum skimmer at a high incline, the scum skimmer can be easily dismantled and reinstalled for maintenance, thereby significantly improving the convenience of maintenance for the scum skimmer.

Description

Scum skimmer for water treatment

The present invention relates to a scum skimmer for water treatment, and more specifically, to a large rotation radius for discharge by including an installation fixture, a worm reducer, a central support, a fixed block, a scum pipe, a rotation guide, a scum discharge pipe, and a fixed support means. Since rotation of the scum is not required, it is possible to prevent stagnation of scum on the water surface and reverse flow of water. This allows scum floating on the water surface of the coagulation pond to flow smoothly into the scum inlet side of the scum pipe and then flows through the scum pipe in the longitudinal direction of the scum pipe. The scum removal efficiency can be improved by directing the flow to the center and discharging it through the downward scum discharge pipe, while the lower part is installed on both sides of the installation fixture and scum pipe in an anchor structure on the rear wall, which is located higher than the center part. By applying a fixed support means of a turnbuckle structure that supports a fixed length at a high slope, disassembly and reinstallation for maintenance of the scum skimmer can be easily performed, significantly improving the convenience of maintenance for the scum skimmer. It concerns scum skimmers for water treatment.

Generally, sewage discarded from homes or factories is sent to a sewage treatment plant and then treated.

This sewage treatment process includes a water purification process and a sludge treatment process. First, in the water purification process, the sewage is purified to the extent that the river's self-purifying effect can be activated and then discharged into public water bodies such as rivers. Additionally, in the sludge treatment process, the sewage is purified to the extent that the river's self-purifying effect can be activated. Sludge generated during the process is treated through processes such as concentration and dehydration.

The water purification process at a sewage treatment facility is usually carried out at a water purification plant, including a physical purification process that removes solid suspended solids (tree branches, plastic bottles, Styrofoam, etc.) and solid sediments (sand, gravel, metal, etc.), and organic matter. It includes chemical/biological water purification processes to remove dissolved substances such as

At this time, the chemical/biological water purification process includes the process of forming scum by administering chemicals to the raw water flowing into the flocculation pond at the water purification plant through the previous steps and then removing the scum from the raw water.

The conventional scum removal device is a device used to remove the above-mentioned scum from raw water. It is installed on the rear wall of the coagulation pond at the water purification plant and has a scum outlet at the upper side of the scum pipe to remove scum floating on the inflow water. It is formed.

In addition, the scum removal device as described above usually rotates the scum pipe to make the scum outlet horizontal to the flow direction of the water surface where the scum floats, and then rotates more than 180 degrees when a certain amount of scum and water flows in to remove the scum outlet from the rear wall. The process involves discharging scum and water into a drain formed by a concrete structure at the rear, rotating it back to its original position to let scum and water in, and then rotating more than 180 degrees when a certain amount of scum and water flows in to discharge the scum and water into the drain. It is operated repeatedly.

In the water treatment process described above, scum can be removed from the treated water in the flocculation pond through a scum removal device in the flocculation pond.

However, the conventional scum removal device as described above had a problem in that when a certain amount of scum was introduced and then discharged to the rear drain through rotation, waves were generated on the water surface, causing a reverse flow of water due to the waves.

Moreover, due to the generation of waves on the surface of the water, a reverse flow of water occurred, causing scum to stagnate and not flow in, thereby lowering the scum removal efficiency.

Therefore, rotation at a large turning radius for discharge is not required, preventing stagnation of scum on the water surface and reverse flow of water currents. Through this, scum floating on the water surface of the coagulation pond is smoothly introduced into the inlet side. There is a need for research and development on a scum removal device for water treatment that can improve the removal efficiency of scum while discharging it.

Korean Patent No. 10-2013285 2019.08.16. registration. Korean Patent No. 10-2036627 2019.10.21. registration. Korean Patent Publication No. 10-2020-0133591 2020.11.30. open. Korean Patent No. 10-2221697 2021.02.23. registration. Korean Patent No. 10-2292010 2021.08.13. registration.

In order to solve the above problems, the present invention includes an installation fixture, a worm reducer, a central support, a fixed block, a scum pipe, a rotation guide, a scum discharge pipe, and a fixed support means, so that rotation at a large turning radius for discharge is possible. Since there is no requirement, it is possible to prevent scum stagnation on the water surface and the reverse flow phenomenon of water flow. This allows scum floating on the water surface of the coagulation pond to flow smoothly into the scum inlet side of the scum pipe and then flows toward the exact center of the scum pipe in the longitudinal direction. The purpose is to provide a scum skimmer for water treatment that can improve the removal efficiency of scum by inducing and discharging it through a downward scum discharge pipe.

Another object of the technology according to the present invention is to include an installation fixture, a worm reducer, a central support, a fixing block, a scum pipe, a rotation guide, a scum discharge pipe, and a fixing support means, and the lower part of the installation fixture includes an anchor bolt and an anchor bolt on the rear wall. It is fixedly installed with an anchor nut structure, and the fixed support means is applied to the scum pipe on both sides as a turnbuckle structure that supports the scum pipe in a state with a certain length upward slope higher than the center part, making disassembly and reinstallation for maintenance of the scum skimmer easy. At the same time, the convenience of maintenance for the scum skimmer can be significantly improved.

The present invention for achieving the above-mentioned object is as follows. That is, the scum skimmer for water treatment according to the present invention is installed and fixed on the rear wall forming a flocculation pond in a water purification plant for sewage water purification treatment, and generates a flow of water surface toward the rear wall in the flocculation pond to create scum in the water surface area. A scum skimmer for water treatment that guides inflow with a small amount of water and then discharges it to the outside, comprising: an installation fixture whose lower part is fixed to the upper surface of the rear wall and whose upper part protrudes a certain distance forward from the rear wall; A worm reducer whose lower end is installed downwardly on the upper part of the installation fixture and whose drive sprocket is fixed to the drive shaft protruding to one side; A central support bar provided in the form of a vertical bar, the upper part of which is connected to and supported by the upper end of the installation fixture; A fixed block provided in a hollow cylindrical shape with a horizontal through hole, the lower end of the central support is connected to the outer upper side, and bearings and O-rings are installed on both sides toward the center, respectively; It is provided in the shape of a hollow pipe with both ends sealed, with a scum discharge hole formed in the longitudinal center along a certain length in the circumferential direction, and a long, long-hole type scum inlet with a certain width on both sides from the longitudinal center. A scum pipe is formed and fixed through the hole of the fixing block so as to be rotatable about the central portion where the scum discharge hole is formed; An interlocking sprocket is fixedly installed to surround the outer surface of one side of the fixed block of the scum pipe and is rotated interlockingly with a chain and a drive sprocket fixed to the drive shaft of the worm reducer; A rotation guide that rotatably surrounds and secures the outer surface of the scum pipe at a certain distance on both sides from the fixed block; A scum discharge pipe provided in the shape of a hollow tube, the upper end of which penetrates the lower central part of the fixed block to communicate with the internal space, and which guides the scum flowing in through the scum inlet of the scum pipe and discharged into the scum discharge hole downward. And a fixed support means that connects the rotation guide and the side parts of the central support so that tension can be adjusted so that both sides of the scum pipe can be fixedly supported at a certain length upward from the center.

In the present invention, which has the above configuration, the rear end is fixed to the front at a certain distance downward and perpendicular to the upper surface of the rear wall so that both sides of the scum pipe are supported upward, and extends a certain distance toward the front, and the lower end of the rotation guide is upward. It is desirable to further include a supporting lateral support.

Moreover, the rotation guide has a mountain-shaped depression in the center of the width direction, while the lateral support is a fixing part fixed to the front with an anchor bolt and anchor nut structure at a certain distance downward and perpendicular to the upper surface of the rear wall. It extends from the front side at right angles to the mountain-shaped frame, and it is preferable that the seating groove of the rotation guide is seated and fixed from the tip side of the mountain-shaped frame.

In addition, the fixed support means is applied as a turnbuckle, while one end and the other end of the turnbuckle are connected to a fixing piece provided on both sides of the outer surface at a certain distance upward from the bottom of the central support and a fixing piece provided on the upper side of the rotation guide. desirable.

At this time, the fixing pieces provided on both sides of the outer surface of the central support have one end fixed to both sides of the outer surface a certain distance upward from the bottom of the central support, and the other end has a fixed thickness with a through hole through which one end of the turnbuckle is connected and fixed. Meanwhile, the fixing piece provided on the upper side of the rotation guide is preferably provided in the shape of a piece with a certain thickness, the lower end of which is fixed to the upper side of the rotation guide, and the upper end through which the other end of the turnbuckle is connected and fixed. .

In addition, the interlocking sprocket is preferably fixed to the scum pipe through welding or bolting while surrounding the outer surface of the scum pipe.

In addition, the worm reducer is of the electric or manual type, and is rotated and driven by an electric motor or a manual handle to rotate and return the scum pipe within a certain angle range so that the scum inlet communicates with and closes the water surface in the coagulation pond. It is better to rotate it manually through a connection.

The effects of the scum skimmer for water treatment according to the present invention will be described as follows.

First, since it includes an installation fixture, worm reducer, central support, fixed block, scum pipe, rotation guide, scum discharge pipe, and fixed support means, rotation at a large turning radius for discharge is not required, preventing stagnation of scum on the water surface. It is possible to prevent the reverse flow of water, and through this, the scum floating on the surface of the coagulation pond is smoothly introduced into the scum inlet side of the scum pipe, and then the flow is guided to the exact center of the longitudinal direction of the scum pipe and discharged through the downward scum discharge pipe. The removal efficiency of scum can be improved.

Second, it includes an installation fixture, worm reducer, central support, fixing block, scum pipe, rotation guide, scum discharge pipe and fixed support means, and the lower part of the installation fixture is fixed on the rear wall with an anchor bolt and anchor nut structure. , the fixed support means is applied to the scum pipe on both sides in a turnbuckle structure that supports the scum pipe in a state with a certain length and a higher slope upward than the center part, so that disassembly and reinstallation for maintenance of the scum skimmer can be easily performed and at the same time, the scum skimmer can be The convenience of maintenance can be significantly improved.

1 is a perspective view showing a scum skimmer for water treatment according to the present invention.
Figure 2 is a front illustration showing a scum skimmer for water treatment according to the present invention.
Figure 3 is a plan view showing a scum skimmer for water treatment according to the present invention.
Figure 4 is a side illustration showing a scum skimmer for water treatment according to the present invention.
Figure 5 is a front illustration of the in-use and discharge flow of scum in the scum skimmer for water treatment according to the present invention.
Figure 6 is an exemplary diagram showing a state in which the scum pipe, which is the main part of the scum skimmer for water treatment according to the present invention, is rotated for the inflow and discharge of scum.

Hereinafter, a preferred embodiment of a scum skimmer for water treatment according to the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view showing a scum skimmer for water treatment according to the present invention, and Figure 2 is a front illustration showing a scum skimmer for water treatment according to the present invention.

Figure 3 is a plan view showing a scum skimmer for water treatment according to the present invention, and Figure 4 is a side view showing a scum skimmer for water treatment according to the present invention.

Figure 5 is a front illustration of a use state showing the inflow and discharge flow of scum in the scum skimmer for water treatment according to the present invention.

Figure 6 is an exemplary diagram showing a state in which the scum pipe, which is the main part of the scum skimmer for water treatment according to the present invention, is rotated for the inflow and discharge of scum.

As shown in Figures 1 to 6, the scum skimmer 1000 for water treatment according to a preferred embodiment of the present invention is installed on the rear wall 11 forming the flocculation pond 10 in a water purification plant for water purification treatment. It is fixed, and causes scum in the water surface area to flow in with a small amount of water through the generation of a flow of the water surface toward the rear wall 11 in the cohesive pond 10 and then is discharged to the outside.

At this time, the water surface flow, although not specifically shown in the drawings, refers to the water surface flow generated according to the drive of the flocculator, for example, in a flocculator having a paddle structure, it means the water surface flow generated according to the rotational drive of the paddle. do.

Of course, the present invention is intended to remove scum floating on the water surface in a water treatment facility, and can be applied and used in various water treatment facilities such as sedimentation tanks other than the flocculation pond 10.

The scum skimmer 1000 for water treatment according to the present invention as described above includes an installation fixture 1100, a worm reducer 1200, a central support 1300, a fixed block 1400, a scum pipe 1500, and an interlocking sprocket 1500a. , a rotation guide (1600), a scum discharge pipe (1700), and a fixed support means.

Specifically, the lower part of the installation fixture 1100 is fixed to the upper surface of the rear wall 11, and the upper part protrudes forward from the rear wall 11 at a certain distance.

The lower end of the worm reducer 1200 is installed downwardly on the upper part of the installation fixture 1100, and the drive sprocket 1220 is fixed to the drive shaft 1210 protruding to one side.

As shown in the drawing, the worm reducer 1200 is installed downwardly on the upper part of the installation fixture 1100, and has a pair of 'ㄷ'-shaped structures between the upper part of the installation fixture 1100. It can be installed with the bracket (B) interposed.

Of course, the worm reducer 1200 may be installed directly downwardly on the upper part of the installation fixture 1100 without the pair of 'ㄷ' shaped brackets (B) being interposed.

In addition, the central support 1300 is provided as a vertical bar type, and the upper part is connected to and supports the upper end of the installation fixture 1100.

This central support 1300 is preferably provided with a pair of fixing flanges 1310, especially at the upper portion.

In addition, the fixing block 1400 is provided in the shape of a hollow cylinder with a horizontal through hole, so that the lower end of the central support 1300 is connected to the upper outer side, and a bearing 1410 and an O-ring 1430 are installed on both sides toward the center, respectively. ) is installed.

In addition, the scum pipe 1500 is provided in the shape of a hollow pipe with both ends sealed, and a scum discharge hole 1570 is formed through the longitudinal center portion over a certain length in the circumferential direction, and extends from the center in the longitudinal direction to both sides. A scum inlet 1510 of a long hole type having a certain width is formed penetrating and is fixed through the hole of the fixing block 1400 so as to be rotatable with respect to the central portion where the scum discharge hole 1570 is formed.

And the interlocking sprocket (1500a) is fixedly installed to surround one outer surface of the fixed block (1400) of the scum pipe (1500), and the drive sprocket (1220) and chain ( It is connected in interlocking rotation with C).

The interlocking sprocket 1500a as described above is preferably fixed to the scum pipe 1500 through welding or bolting while surrounding the outer surface of the scum pipe 1500.

For example, the interlocking sprocket 1500a includes a flange portion that extends a certain length at right angles from the inner end surrounding the outer surface of the scum pipe 1500 of the sprocket portion and then extends on a plate of a certain length while crossing again at right angles to be parallel to the sprocket portion. It is preferable that the welding in this case is performed on the inner end surrounding the outer surface of the scum pipe 1500 of the flange part and the inner end surrounding the outer surface of the scum pipe 1500 of the sprocket part.

In addition, when the interlocking sprocket (1500a) is fixed to the scum pipe (1500) through bolting, a threaded hole is formed in the extended portion between the sprocket portion and the flange portion, and the threaded rod portion of the bolt is coupled to the threaded hole. The end of the serrated rod can be fixed through bolting to press the outer surface of the scum pipe (1500).

Meanwhile, the rotation guide 1600 rotatably surrounds and fixes the outer surface of the scum pipe 1500 at a certain distance on both sides from the fixing block 1400.

In addition, the scum discharge pipe 1700 is provided in the shape of a hollow tube so that the upper end penetrates the lower central part of the fixed block 1400 to communicate with the internal space, and is connected through the scum inlet 1510 of the scum pipe 1500. The scum that flows in and is discharged through the scum discharge hole (1570) is guided to discharge downward.

In particular, the scum discharge pipe 1700 has a flange structure, and it is more desirable for the scum discharge extension pipe 1700a to be connected to each other through a butt joint to extend and guide the discharge of the scum toward the discharge location.

In addition, the fixed support means is connected to the rotation guide 1600 and the side of the central support 1300 so that tension can be adjusted so that both sides of the scum pipe 1500 can be fixed and supported at an angle upward at a certain length relative to the center. will be.

This fixed support means is preferably applied as a turnbuckle 1800 in particular.

In addition, one end and the other end of the turnbuckle 1800 have fixing pieces 1350 provided on both sides of the outer surface spaced a certain distance upward from the bottom of the central support 1300, and fixing pieces 1650 provided on the upper side of the rotation guide 1600. ) is desirable to be connected to.

At this time, the fixing pieces 1350 provided on both sides of the outer surface of the central support 1300 have one end fixed to both sides of the outer surface a certain distance upward from the bottom of the central support 1300, and one end of the turnbuckle 1800 is connected to the other end. It is provided in a flat shape with a constant thickness through which the fixed through hole is formed.

In addition, the fixing piece 1650 provided on the upper side of the rotation guide 1600 has a lower end fixed to the upper side of the rotation guide 1600 and a through hole through which the other end of the turnbuckle 1800 is connected and fixed to the upper side. It is preferable that it be provided in a flat shape with a certain thickness.

Meanwhile, it is important for the scum skimmer 1000 for water treatment according to the present invention, which has the above-described configuration, to allow both sides of the scum pipe 1500 to be supported upward.

For this purpose, the scum skimmer 1000 for water treatment according to the present invention has its rear end fixed to the front at a certain distance downward and perpendicular to the upper surface of the rear wall 11, extends a certain distance toward the front, and has a lower end of the rotation guide 1600. It is desirable to further include a lateral support 1900 that supports upward.

In this case, the rotation guide 1600 has a mountain-shaped depression formed at the center of the rotation guide 1600 in the width direction.

In addition, the lateral support 1900 is perpendicular to the upper surface of the rear wall 11 and extends to the mountain-shaped frame at right angles to the front from a fixing part fixed to the front with an anchor bolt and anchor nut structure at a certain distance downward. It is preferable that the seating groove 1610 of the rotation guide 1600 is seated and fixed from the tip side of the mold frame.

In the scum skimmer (1000) for water treatment according to the present invention configured as described above, the worm reducer (1200) is an electric or manual type, and the scum pipe (1500) is connected to the scum inlet (1510) by the coagulation paper (10). It is important to rotate and return within a certain angle range to ensure communication and closure with the water surface within.

Accordingly, the worm reducer 1200 is rotationally driven electrically through connection to an electric motor or manually through connection to a manual handle.

At this time, the configuration to which the electric motor or manual handle of the worm reducer 1200 is connected is the main drive shaft 1201 protruding on a surface orthogonal to the drive shaft 1210 with respect to the upper part of the drive shaft 1210.

The angle range by which the scum inlet 1510 of the scum pipe 1500 as described above is rotated and returned to communicate with and close the water surface in the coagulation pond 10 is 90 degrees in (a), (b), and (c) of FIG. 6. Within a range of degrees, it can be rotated and returned to an angle vertically upward, diagonally upward, or horizontally.

In the scum skimmer 1000 for water treatment according to the present invention configured as described above, it is preferable that the scum discharge pipe 1700 penetrates upward from the lower center of the fixed block 1400 and is connected and fixed to communicate with the internal space.

Of course, as shown in the drawing, the fixed block 1400 has a communication hole (not marked) formed on the lower side to communicate with the internal space of the scum discharge pipe 1700, so that the upper peripheral portion of the scum discharge pipe 1700 is located around the bottom of the communication hole. In this close contact state, it can be connected and fixed through welding.

Furthermore, although not specifically shown in the drawings, the fixing block 1400 may be provided as a hexahedral type with a circular hole formed through it in the horizontal direction rather than a cylindrical shape, and is bisected based on the exact center in the width direction so that it can be used for welding, bolting, etc. It may be mutually fixed through the means of district administration.

In the scum skimmer 1000 for water treatment according to the present invention configured as described above, the installation fixture 1100 is preferably composed of a fixed frame 1110, a vertical frame 1120, and a connecting frame 1130. do.

At this time, the fixing frame 1110 is provided in the form of a horizontal plate that is fixed to the upper surface of the rear wall 11 of the cohesive paper 10 through anchor bolts and anchor nuts.

In addition, the vertical frame 1120 is provided in the form of a vertical plate, and its lower end is connected to the upper front side of the fixed frame 1110.

In addition, the connection frame 1130 has a rear end connected to the top of the vertical frame 1120, and a front end is provided in the shape of a horizontal plate extending a certain length forward from the vertical frame 1120.

In particular, this connection frame 1130 is sandwiched between the fixing flanges 1310 provided as a pair of the central support 1300 for a certain length of the front end, and is fixedly installed through the fixing flange 1310, bolts, and nuts, and is fixed to the center. This is so that the upper end of the support 1300 can be connected.

For this purpose, the connection frame 1130 is preferably recessed backward from the center in the width direction of the front end with a width corresponding to the outer diameter of the central support 1300, and a fitting groove (not marked) is recessed so that the rear end portion has a hemispherical shape.

The scum skimmer 1000 for water treatment according to the present invention, configured as described above, has a scum inlet 1510 parallel to the water surface or at a certain portion relative to the water surface with respect to the scum pipe 1500 according to the operation of the worm reducer 1200. After allowing the scum to flow in in a state where it is tilted upward to allow the scum to flow in, the scum flowing in through the scum inlet 1510 passes through the scum outlet 1570 while making the scum inlet 1510 perpendicular to the water surface. It can be operated to be discharged to the outside via the scum discharge pipe 1700, etc.

According to the scum skimmer for water treatment according to the present invention configured as described above, it includes an installation fixture, a worm reducer, a central support, a fixed block, a scum pipe, a rotation guide, a scum discharge pipe, and a fixed support means, thereby providing a large size for discharge. Since rotation to the turning radius is not required, it is possible to prevent stagnation of scum on the water surface and reverse flow of water. This allows scum floating on the water surface of the coagulation pond to flow smoothly into the scum inlet side of the scum pipe and then flows into the scum pipe. The scum removal efficiency can be improved by directing the flow to the center of the longitudinal direction and discharging it through the downward scum discharge pipe.

Moreover, it includes an installation fixture, worm reducer, central support, fixing block, scum pipe, rotation guide, scum discharge pipe and fixed support means, and the lower part of the installation fixture is fixed on the rear wall with an anchor bolt and anchor nut structure. , the fixed support means is applied to the scum pipe on both sides in a turnbuckle structure that supports the scum pipe in a state with a certain length and a higher slope upward than the center part, so that disassembly and reinstallation for maintenance of the scum skimmer can be easily performed and at the same time, the scum skimmer can be This can significantly improve the convenience of maintenance.

Although specific embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and the present invention can be implemented in various modifications by those skilled in the art in the technical field to which the present invention pertains. is included in the scope of the present invention.

10: Cohesive paper
11: Rear wall
1000: Scum Skimmer
1100: Installation fixture 1110: Fixed frame
1120: Vertical frame 1130: Connection frame
1200: Worm reducer 1201: Main drive shaft
1210: Drive shaft 1220: Drive sprocket
1300: Central support 1310: Fixed flange
1350, 1650: Fixed piece 1400: Fixed block
1410: Bearing 1430: O-ring
1500: Scum pipe 1510: Scum inlet
1570: Scum discharge hole 1500a: Interlocking sprocket
1600: Rotation guide 1610: Seating groove
1700: Scum discharge pipe 1700a: Scum discharge extension pipe
1800: Turnbuckle 1900: Lateral support
C:chain
B: bracket

Claims (7)

It is installed and fixed on the rear wall (11) forming the coagulation pond (10) in a water purification plant for sewage water purification treatment, and generates a flow of water toward the rear wall (11) in the coagulation pond (10). In the scum skimmer (1000) for water treatment, which guides scum along with a small amount of water and then discharges it to the outside,
An installation fixture 1100, the lower part of which is fixed to the upper surface of the rear wall 11, and the upper part of which protrudes a certain distance forward from the rear wall 11;
A worm reducer (1200) whose lower end is installed downwardly on the upper part of the installation fixture (1100) and whose drive sprocket (1220) is fixed to the drive shaft (1210) protruding to one side;
A central support bar (1300) provided in a vertical bar type, the upper portion of which is connected to and supported by the upper end of the installation fixture (1100);
It is provided in a hollow cylindrical shape with a horizontal through hole, and the lower end of the central support 1300 is connected to the outer upper side, and a fixed block 1400 in which bearings 1410 and O-rings 1430 are installed at the center inside each side. );
It is provided in the shape of a hollow pipe with both ends sealed, and a scum discharge hole (1570) is formed through a certain length in the circumferential direction in the center of the longitudinal direction, and is a long long hole type with a certain width on both sides from the center in the longitudinal direction. A scum pipe (1500) formed through a scum inlet (1510) and fitted through the hole of the fixing block (1400) so as to be rotatable about the central portion where the scum discharge hole (1570) is formed;
It is fixedly installed to surround one side of the fixed block 1400 of the scum pipe 1500, and is rotated interlocked with the drive sprocket 1220 fixed to the drive shaft 1210 of the worm reducer 1200 and a chain (C). Interlocking sprocket (1500a);
A rotation guide (1600) that rotatably surrounds and fixes the outer surface of the scum pipe (1500) at a certain distance on both sides from the fixing block (1400);
It is provided in the shape of a hollow tube, and the upper end penetrates the lower central part of the fixing block (1400) so that the internal space is connected, and flows in through the scum inlet (1510) of the scum pipe (1500) to the scum discharge hole (1570). A scum discharge pipe (1700) that guides the scum discharged downward to discharge; and
A fixed support means connected to the rotation guide 1600 and the side parts of the central support 1300 so that tension can be adjusted so that both sides of the scum pipe 1500 can be fixedly supported at a certain length upward from the center. Scum skimmer for water treatment.
According to paragraph 1,
So that both sides of the scum pipe (1500) are supported upward,
The rear end is fixed to the front at a certain distance downward and perpendicular to the upper surface of the rear wall 11, extends a certain distance toward the front, and further includes a lateral support 1900 that supports the lower end of the rotation guide 1600 upward. A scum skimmer for water treatment.
According to paragraph 2,
The rotation guide 1600 has a mountain-shaped recessed seating groove 1610 at the center of the width direction.
The lateral support 1900 is perpendicular to the upper surface of the rear wall 11 and extends to the mountain-shaped frame at right angles to the front from a fixing part fixed with an anchor bolt and anchor nut structure on the front at a certain distance downward. A scum skimmer for water treatment, characterized in that the seating groove 1610 of the rotation guide 1600 is seated and fixed from the tip side of the.
According to paragraph 1,
While the fixed support means is applied as a turnbuckle (1800),
One end and the other end of the turnbuckle 1800 are attached to a fixing piece 1350 provided on both sides of the outer surface at a certain distance upward from the bottom of the central support 1300 and a fixing piece 1650 provided on the upper side of the rotation guide 1600. A scum skimmer for water treatment, characterized in that it is connected.
According to paragraph 4,
The fixing pieces 1350 provided on both sides of the outer surface of the central support 1300 have one end fixed to both sides of the outer surface a certain distance upward from the bottom of the central support 1300, and one end of the turnbuckle 1800 is connected and fixed to the other end. While it is provided in a flat shape with a certain thickness formed through this,
The fixing piece 1650 provided on the upper side of the rotation guide 1600 has a lower end fixed to the upper side of the rotation guide 1600 and has a certain thickness formed through a through hole through which the other end of the turnbuckle 1800 is connected and fixed to the upper side. A scum skimmer for water treatment, characterized in that it is provided in a flat shape having.
According to paragraph 1,
The interlocking sprocket (1500a) is a scum skimmer for water treatment, characterized in that it surrounds the outer surface of the scum pipe (1500) and is fixedly installed with the scum pipe (1500) through welding or bolting.
According to paragraph 1,
The worm reducer 1200 is an electric or manual type that rotates and returns the scum pipe 1500 within a certain angle range so that the scum inlet 1510 communicates with and closes the water surface in the coagulation pond 10,
A scum skimmer for water treatment, characterized in that it is rotated electrically through connection to an electric motor, or rotated manually through connection to a manual handle.

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