KR20180024726A - Surface Agitator of Self-Levitation - Google Patents

Abstract

Disclosed by the present invention is sewage/waste water treatment technology. A magnetic levitation type surface agitator according to an embodiment of the present invention plays a role to make a floated low concentration organic material flow back to water as gas, generated when a high concentration organic material is decomposed, rises up and a low concentration organic material floats together. Additionally, the magnetic levitation type surface agitator of the present invention: flexibly deforms a bubble removal position according to the water level of sewage by removing bubbles generated in a septic tank or a sewage/waste water treatment tank and moving a bubble removal position to be automatically changed according to the water level of sewage; and efficiently removes bubbles generated in sewage by maintaining the levitation position of equipment for removing bubbles on the boundary of bubbles and water. The present invention improves the yield of equipment and saves costs by minimizing power loss while preventing a phenomenon to which bubbles are attached by making a pulverization blade come into contact with water with bubbles. The magnetic levitation type surface agitator includes a support frame, a bubble removal unit, a shaft fixing unit, and a driving means.

Description

{Surface Agitator of Self-Levitation}

The present invention relates to a magnetic surface type surface stirrer, and more particularly, to a magnetic surface type surface stirrer, more specifically, a gas generated by decomposition of a high concentration organic material is raised and a low concentration organic material is floated together, To a magnetic in-plane surface stirrer for removing bubbles generated during decomposition of a high concentration organic material.

Generally, in a water treatment plant for treating polluted water (hereinafter referred to as "sewage") such as sewage, wastewater, sewage, etc., a stirrer is installed in a treatment tank containing a certain amount of wastewater to stir the wastewater as a mixed solution, The purpose of the treatment is to prevent the supply of oxygen and the formation of sediments necessary for the assimilation of new cells while oxidizing the organic material by the activated sludge microorganisms in the treatment tank and to homogenize the water quality by stirring the wastewater in the treatment tank. Further, scum is generated in the treatment tank such as wastewater to float on the surface. Since the scum is not precipitated but is discharged on the water surface and is discharged, it acts as a main cause of secondary pollution. And a magnetic in-surface type surface stirrer for removing a large amount of scum floating thereon is mounted and used.

However, in the case of a conventional magnetic stirrer surface stirrer, a separate scum collecting means is provided in the treatment tank. When a certain amount of scum is collected, the scum collecting means is lifted and taken out to the outside, But it is dangerous and a separate cost is required.

In addition, in the conventional magnetic surface type surface stirrer, water sprinkling equipment is constructed on the upper side of the treatment tank to remove scum, so that the manufacturing cost of the apparatus is increased and the water level due to the separate sprinkling source is increased And there is a problem that the power loss is large.

As a conventional technique disclosed to solve the above problems, Korean Patent Registration No. 979150 (August 25, 2010) And an upper impeller coupled to the shaft and rotating together, wherein the upper impeller includes: an impeller arm protruding at an angle with respect to an axial direction of the shaft; Wherein the blade is located below the water surface and protrudes forward with respect to the rotating direction of the impeller arm, and the blade is configured to push up and disassemble the scum floated by rotation There is known a magnetic surface-type surface stirrer capable of reducing manufacturing and maintenance costs.

However, since the conventional magnetic surface type surface stirrer is mounted on the shaft as a rotation shaft so as to remove scum, the mounting position is fixed at a predetermined height above, so that scum generation up to a certain level of the wastewater in the treatment tank The scum can be removed only when the wastewater reaches a certain water level (high water level), and the removal efficiency of the scum is considerably deteriorated.

In addition, in the conventional magnetic sub-surface type surface stirrer, the rotating body having a rotatable structure is driven at a predetermined fixed position so that the scum is crushed so that the blade scrapes only the scum, so that the scum sticks to the contact surface of the blade itself, There is a problem that not only the removal efficiency is significantly reduced but also the power loss of the power source becomes large.

In the case of the conventional magnetic surface type surface stirrer, when a shaft as a rotation shaft is elongated and rotated in water, a force due to contact with water or scum is applied to the shaft, This shake of the shaft lowers the work efficiency for scum removal and shortens the service life of the equipment.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a magnetic stirrer and a surface stirrer which are relatively simple in designing an installation structure so that a working position can be automatically adjusted according to the level of a sewage The present invention relates to a magnetic stirrer and a magnetic stirrer.

The second object of the present invention is to provide a water treatment system which is configured to be floated on the water surface of a sewage and configured to be rotatably driven in a state of being locked at a certain depth in the water, This is to further improve the foaming ability to remove the foam that has floated on the surface at all times.

The third object of the present invention is to prevent the breaking blade from adhering to bubbles due to contact with water and to minimize the power loss and to keep the water only by the inflow of raw water without additional configuration, To provide a magnetic in-surface type surface stirrer that is easy to be disassembled and has a bubbling removal capability while reducing production costs for equipment.

A fourth object of the present invention is to provide a magnetic stirrer surface stirrer capable of increasing the working efficiency of the equipment for bubble removal while extending the life of the equipment while securing the driving stability of the rotating shaft by fixing the rotating shaft rotationally driving in water under double- .

The magnetic in-surface type surface stirrer proposed by the present invention is a magnetic surface type surface stirrer mounted on a treatment tank provided with a top manhole cover and capable of removing bubbles floating on the surface of the wastewater flowing into the treatment tank, A support frame fixedly installed on the manhole cover; A rotating body provided on the water surface of the wastewater introduced into the treatment tank so as to be able to flow vertically in accordance with the water level of the wastewater while being rotated in contact with the bubbles so as to scatter the water together with the bubbles; And a rotating shaft for guiding the ascending or descending of the rotating body so that the rotating body can be elastically moved up and down according to the level of the wastewater; A shrinking portion provided on the support frame and rotatably fixing the rotary shaft of the foam removing unit; And a driving unit fixedly installed on the upper portion of the support frame and connected to the rotary shaft of the foam removing unit to apply rotary power.

The rotating body includes a rotating body having a structure in which four sides are closed so as to form an empty space therein, and a fitting engagement member connected to the lower end of the rotating shaft so as to be able to slide up and down in the longitudinal direction of the rotating shaft. And a plurality of breaking blades extending outwardly from the outer circumference of the rotating body so as to be able to hit the water together with the bubbles and spaced apart from each other along the outer circumference of the rotating body.

Wherein the crushing blade includes a contact inclined portion which is located on the boundary line between the foam and the water and is tilted so as to disperse the foam and the water upwardly, an upper bent portion which is bent at the upper end of the contact inclined portion and is extended to one side, To form a lower bent end which is bent at the lower end of the portion and extends toward the bending direction.

The crushing blade is inclined downward toward the rotating direction of the rotating body and abuts to disperse the foam and water upward on the boundary between the foam and the water and is capable of maintaining the floating position on the boundary line between the foam and the water when the rotating body rotates .

The rotation shaft includes a driving shaft connected to one end of the driving means and extending in the vertical direction and a guide shaft extending in the longitudinal direction at a lower end of the driving shaft and guiding the up- do.

Wherein the rotation shaft is formed with a locking protrusion formed at a boundary between the driving shaft and the guide shaft and preventing the upward movement of the rotating body of the foam removing unit.

And the shaft fixing portion is arranged in a double-spaced manner on the rotary shaft of the foam removing device at an upper and lower interval.

The magnetic in-surface type surface stirrer of the present invention is constructed so that the position of the rotating body can be flexibly moved up and down according to the level of the wastewater so that bubbles are always removed from a low water level and the bubbles are regenerated, Thereby giving a first effect that can be improved.

The present invention has the second effect of securing the safety of the work while keeping the number of the raw water in accordance with the inflow of raw water as well as reducing the manufacturing cost of the apparatus in accordance with the necessity of the discharge operation for discharging the foam or the separate spraying configuration .

Since the present invention is constructed such that it can be simply mounted on a manhole cover of a treatment tank, the structure can be easily designed to simplify the installation of the equipment, and the manufacturing cost and maintenance cost of the product can be reduced.

The present invention provides a fourth effect that the energy consumption can be reduced to reduce the maintenance cost and the bubble removing efficiency can be further improved because the rotating body is configured to rotate by being positioned on the water surface of the wastewater at all times.

Since the rotating body and the crushing blade are driven in a slightly submerged state in water, the water is scattered together with the bubbles to enlarge the bubbles removing area, more effectively remove the bubbles, and the rotating body and the crushing blade Thereby preventing the bubble from sticking to the contact, thereby increasing the service life of the equipment, reducing the power loss, and reducing the depreciation cost for the maintenance.

The present invention constitutes a crushing blade having an inclined contact portion inclined to one side and an upper bent portion and a lower bent portion bent at the upper and lower ends, respectively, The present invention provides a sixth effect that maximizes the bubble removing effect according to the breaking and dispersing efficiency of the foam or water by preventing the twisting phenomenon of the breaking blade and dispersing the foam and water upward.

The present invention provides a seventh effect that further improves the efficiency of bubble removal by utilizing the pulverizing blade which is continuously driven on the bubble-water boundary line while upwardly dispersing the bubble and water.

The present invention constitutes a double shaft-arranged shafts in the longitudinal direction of the rotary shaft, thereby preventing the shaking of the rotary shaft during rotary drive, thereby achieving highly stable operation, improving work efficiency and extending the life of the equipment Gives an eighth effect.

1 is a front view of a magnetic in-plane surface stirrer according to an embodiment of the present invention.
2 is a perspective view illustrating a rotating body of the foam removing unit according to an embodiment of the present invention.
3 is another perspective view showing a rotating body of the foam removing unit according to another embodiment of the present invention.
4 is a front view illustrating a rotating body according to an embodiment of the present invention.
5 is a front cross-sectional view of a magnetic in-plane surface stirrer according to another embodiment of the present invention.
6 is a sectional view taken along the line AA in Fig.
FIG. 7 is an exemplary view showing a use state of a magnetic in-plane surface stirrer according to an embodiment of the present invention. FIG.

[Example]

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the magnetic in-surface type surface stirrer, which is an embodiment of the present invention, the gas generated by the decomposition of the high concentration organic material (the high concentration organic material can be floated by the density difference) is raised and the low concentration organic material floats together, , And also removes the bubbles generated when decomposing organic matter at a high concentration.

Here, the main reason for carrying out the action of the magnetic in-surface type surface stirrer to move downward the low-concentration organic matter which is moved by vertically moving the rotating body in the vertical direction according to the water level of the wastewater is to return the low- It is possible to more effectively decompose and remove high-concentration organic substances according to repetitive operations.

That is, the magnetic in-plane surface agitator of the present invention is a magnetic in-plane surface agitator mounted on a processing vessel having an upper manhole cover, a support frame fixedly mounted on the manhole cover; A rotating body which rotates in contact with the water surface of the wastewater flowing into the treatment tank so that the bubbles and water are crushed and scattered and flows in the vertical direction according to the level of the wastewater; A foam removing unit including a rotating shaft for guiding the lifting movement of the rotating body so as to be elastically moved up and down according to the level of the wastewater; A shrinking portion installed in the support frame to fix the rotary shaft so that the rotary shaft of the foam removing unit is rotated; And driving means fixed to the upper portion of the support frame and connected to the rotation shaft to transmit the rotation power to the rotation shaft.

In another embodiment, the magnetic in-plane surface agitator of the present invention is a magnetic in-surface surface agitator mounted on a treatment tank having a top manhole cover and removing floating bubbles on the surface of the wastewater flowing into the treatment tank A support frame fixedly installed on the manhole cover; A rotating body that rotates and contacts bubbles and water on the water surface of the wastewater introduced into the treatment tank and rotates in a vertical direction according to the level of the wastewater, A foam removing unit including a rotating shaft for guiding the ascending or descending of the rotating body so that the entire body is elastically moved up and down according to the level of the wastewater; A shrinking portion provided on the support frame and fixed to rotate the rotary shaft of the foam removing unit; And a driving unit fixedly installed on the upper part of the support frame and connected to the rotary shaft of the foam removing unit to apply a rotary power.

According to another embodiment, the magnetic in-surface type surface stirrer of the present invention removes bubbles generated in a septic tank, an ozone / wastewater treatment tank and the like so that the bubble removing position is automatically changed according to the level of the wastewater, And effectively removes foam generated on the waste water by maintaining the floating position of the equipment for bubble removal on the boundary line between the foam and the water.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the drawings on a preferred embodiment of a magnetic in-plane surface stirrer.

Throughout the specification, the term "wastewater" is not limited to wastewater, which is simply a domestic wastewater, and is not limited to organic wastes such as agricultural / livestock wastes or waste wastewater sludge, desorption filtrate of food wastes, surplus sludge, Wastewater and other wastewater.

1 is a front view of a magnetic in-plane surface stirrer according to an embodiment of the present invention.

First, as shown in FIG. 1, the magnetic in-surface type surface stirrer of the present invention is mounted on a treatment tank (not shown) provided with a top manhole cover. The surface agitator is mounted on the surface of the sewage introduced into the treatment tank 5 The main body of which is used for removing bubbles in a float state. The main structure includes the support frame 10, the shrinking portion 20, the driving means 30 and the foam removing portion 100.

The support frame 10 functions to support the foam removing part 100, the shrinking part 20, and the driving part 30 in a structure in which they are mounted at respective positions.

 That is, the support frame 10 supports the driving means 30 such that the driving means 30 is positioned on the upper side.

A shrinking portion 20 is provided inside the support frame 10 and a foam removing part 100 is connected to the lower side of the support frame 10 to be connected thereto.

The support frame 10 forms a flange structure that can be mounted on the manhole cover of the treatment tank and is fixedly installed on the manhole cover by means of tightening such as bolts.

The foam removing unit 100 comprises a rotating body 110 arranged to contact bubbles and water in a treatment tank and a rotating shaft 120 connecting the rotating body 110 with the driving means 30.

The rotating body 110 is positioned on the surface of the wastewater flowing into the treatment tank and rotates in contact with the bubbles and water to perform a function of breaking the bubbles while scattering the water or removing the bubbles due to the scattered water, And flows vertically and vertically according to the level of the sewage in the bath.

FIG. 2 is a perspective view showing a rotating body of the foam removing unit according to an embodiment of the present invention, and FIG. 4 is a front view showing a rotating body according to an embodiment of the present invention.

2 and 4, the rotating body 110 includes a rotating body 111 connected to the lower end of the rotating shaft 120 and at least one breaking blade 115 formed on the outer periphery of the rotating body 111 ).

The rotating main body 111 and the breaking blade 115 are made of a metal material having a predetermined rigidity and a relatively light weight (for example, copper steel, aluminum steel, stainless steel, alloy steel, etc.).

The rotating body 111 is formed in a cylindrical shape having a circular cross-sectional shape and has a structure in which the upper and lower surfaces are closed and closed at all sides, and a hollow space is formed so as to keep the floating state on the surface.

The upper and lower surfaces of the rotating main body 111 have a gentle curved surface so as to generate stable buoyancy on the water surface. That is, the upper surface of the rotating main body 111 forms a convex curved surface upward, and the lower surface of the rotating main body 111 forms a convex curved surface.

The air is introduced into the internal space of the rotary body 111 to maintain the state where the air is naturally introduced into the internal space of the rotary body 111. However, , So that a more stable buoyancy can be generated.

It is also possible to provide a buoyant body (not shown) in the inner space of the rotating body 111. That is, it is also possible to form a buoyant body filled with a foaming resin (for example, foamed styrene resin, expanded polystyrene, expanded polyethylene resin, crosslinked foamed polyurethane resin or the like) in the inner space of the rotating main body 111 .

The rotating body 111 has a fitting hole 112 which is connected to the lower end of the rotating shaft 120. The power of the driving means 30 is transmitted to the rotating body 110 and the rotating body 111 is rotated by the rotating shaft 111 120 in the longitudinal direction.

The fitting portion 112 has the same cross-sectional shape as the lower end connecting portion of the rotating shaft 120. That is, the fitting member 112 has a rectangular cross-sectional shape as shown in FIG. 2, and the lower end connecting portion of the rotating shaft 120 (hereinafter, the guide shaft 120b) Shape and maintain a bonding relationship with each other.

Accordingly, the rotating body 111 is configured to be able to rotate from the rotational force transmitted through the rotating shaft 120, as well as the up-and-down sliding movement of the rotating body 111.

When the fitting part 112 of the rotating main body 111 and the connecting part of the rotating shaft 120 (the guide shaft 120b) are formed in a rectangular cross-sectional shape as described above, the rotation of the rotating shaft 120 toward the rotating body 110 It is possible to smoothly transmit the driving force and to smoothly move the rotating body 110 in the vertical direction according to the water level.

The breaking blade 115 has a structure that is elongated outwardly on the outer periphery of the rotating main body 111.

As shown in FIG. 2, the breaking blade 115 is formed along the outer circumference of the rotating body 111 (two forward-direction impellers and two reverse-direction impellers in the drawing). Preferably, the breaking blade 115 on the rotating main body 111 has a radial structure at regular intervals.

In other words, the forward impeller of the crushing blade 115 has a downward inclined structure toward the rotating direction and functions to swell the generated foam, and the reverse impeller stirs the suspended low-concentration organic matter.

The crushing blade 115 performs a first function of stirring the low-concentration organic matter suspended in one stirrer and a second function of defoaming (defoaming).

In addition, the crushing blade 115 made of a Z-shaped bend structure is designed for a larger buoyancy with a minimum thickness, and it is specially designed so that it can be stably driven by preventing warping and deformation due to rotational force .

The breaking blade 115 directly contacts the water surface so as to be able to hit the water together with the foam. In other words, the crushing blade 115 scatters in contact with the bubbles and water as the rotating body 111 rotates, and also removes the distant bubbles from the water scattered by the crushing blades.

4, the crushing blade 115 includes a contact sloping portion 115a which is tilted to one side so as to contact the foam and water, and a contact sloping portion 115a which is formed on the upper and lower ends of the contact sloping portion 115a of the crushing blade 115, A bent end 115b and a lower bent end 115c.

The contact slope part 115a is located on the boundary line between the foam and the water and contacts the foam and water. The contact slope part 115a receives a force corresponding to the rotational force of the rotation body 111 and is inclined so as to distribute the foam and the water upward.

The contact slope portion 115a of the breaking blade 115 forms an inclination angle? Inclined within a range of 1 to 90 degrees with respect to the rotation axis. Preferably, the inclination angle alpha of the contact slope portion 115a is in the range of 40 to 50 degrees, and the scattering region of the scattered water is further enlarged.

If the crushing blade 115 having the contact inclined portion 115a is formed on the rotating body 110 as described above, it is possible to disperse the bubbles and water upward to increase the efficiency of dispersing the bubbles and dispersing the water, It is possible to further improve the efficiency.

The upper bending end 115b is bent at the upper end of the contact bending portion 115a and extended to one side while the lower bending end 115c is bent at the lower end of the contact bending portion 115a and extends toward the bending direction.

When the crushing blade 115 having the upper bent end 115b and the lower bent end 115c is formed as described above, the contact between the crushing blade 115 and the water and bubbles becomes smooth due to the high rotational force for removing the bubbles, A distortion phenomenon can be prevented.

Furthermore, it is possible to smoothly guide the foam and water to the contact inclined portion 115a by the lower bent end 115c, thereby further improving the foam removing efficiency.

3, the breaking blade 115 according to another embodiment of the present invention includes a contact slope portion 115a which is inclined to one side so as to contact the foam and water, a contact slope portion 115a of the breaking blade 115 And at least one rear contact inclined portion 115d is formed by side cutting a part of the contact inclined portion 115a so as to form at least one rear contact inclined portion 115d .

At least one of the rear contact slopes 115d serves to smooth the contact with water and foam due to the high rotational force for bubble removal.

More specifically, at least one rear contact slope portion 115d, when the contact slope portion 115a, which disperses the foam and water upwardly and increases the efficiency of dispersing the foam and dispersing the foam, is driven by a fast rotational force, Or the resistance is directly applied to the contact slope portion 115a, there is a physical limitation that the surface of the contact slope portion 115a is lost or cracks due to internal damage occur.

In order to overcome this problem, at least one rear contact inclining portion 115d of the present invention has a portion of the contact inclining portion 115d side-cut, and then the upper side of the contact inclining portion 115d, By forming a structure in which the surface is folded back and forth in the range of 1 to 90 degrees, the frictional force or resistive force applied to the contact inclined portion 115d is reduced to improve the yield of the contact inclined portion 115a.

At least one of the rear contact slopes 115d is provided with a function of dispersing bubbles and water caused by the contact slopes 115a while reducing the fatigue of the contact slopes 115a driven by a high rotational force, It will also do the same.

As shown in FIGS. 2 and 4, the breaking blade 115 has a structure in which the breaking blades 115 extending from the rotating body 111 are separated from each other by a region, and have a structure inclined in opposite directions. That is, the breaking blade 115 has a downward inclined structure toward the rotating direction of the rotating body 111 and a downward inclined structure toward the reverse direction of rotation of the rotating body 111.

The crushing blade 115 functions to remove bubbles because the bubbles and water are in contact with each other to disperse upwardly on the boundary line between the bubbles and water.

The crushing blade 115 has an upper bent end 115b bent and extended in the direction opposite to the rotation of the rotating body 111 and a lower bent end 115c bent and extended in the rotating direction of the rotating body 111 .

The breaking blade 115 may be lowered by a pressing force of the water pressure when the rotating body 111 is in contact with water and bubbles by the rotation of the rotating body 111, Itself may rise, thus maintaining the levitation position on the boundary line between foam and water due to such repetitive motion.

The shredding blade 115 will disperse the foam and water upward and keeps the float position between the foam and the water so that it can be continuously driven only at the boundary between the foam and the water to improve the foam removal more efficiently.

The rotating shaft 120 is for transmitting the power of the driving means 30 to the rotating body and extends vertically on the rotating body 110 so as to be rotatable. And the upper portion of the rotating shaft 120 is connected to the driving means so as to be rotatable.

The rotating shaft 120 has a function of rotating the driving means 30 to transmit the power to the rotating body 110 and a function of guiding the rotating body 110 to be moved up and down in accordance with the water level .

FIG. 5 is a front sectional view of a magnetic in-plane surface stirrer according to another embodiment of the present invention, and FIG. 6 is a sectional view taken along line A-A of FIG.

As shown in FIG. 5, the rotary shaft 120 includes a drive shaft 120a and a guide shaft 120b, which have a vertically-divided structure and form mutually-separated shaft structures having different cross-sectional shapes.

The drive shaft 120a has a circular cross-sectional shape, and has a shape elongated in the vertical direction so that one side of the drive means 30 can be connected and rotated.

The guide shaft 120b extends in the longitudinal direction at the lower end of the drive shaft 120a and is integrated with the drive shaft 120a and has a different cross-sectional shape from the drive shaft 120a.

As shown in FIG. 6, the guide shaft 120b has a square cross-sectional structure, and guides the up-and-down flow of the rotating body 110 in the up-and-down direction in a straight line direction when the rotating body 110 floats according to the water level.

The rotating body 110 is vertically moved up and down according to the water level within the range of the length of the guide shaft 120b.

The rotation shaft 120 includes a locking protrusion 125 at a boundary between the driving shaft 120a and the guide shaft 120b so that the locking protrusion 125 protrudes upward from the rotating body 110 of the foam removing part 100, , The rotating body 110 performs upward movement at a predetermined maximum limit point.

1 and 5, the shrinking portion 20 is provided on the support frame 10 and fixes the rotary shaft 120 so that the rotary shaft 120 of the foam removing unit 100 is rotated.

The shrinking portion 20 is disposed on the rotary shaft 120 of the foam removing unit 100 with a space therebetween at an upper and a lower spacing and is spaced apart from the rotary shaft 120 in the longitudinal direction of the rotary shaft 120 And is arranged in a double structure.

As described above, the shrinking portion 20, which is disposed in the lengthwise direction of the rotary shaft 120, can prevent the shaking of the rotary shaft 120 during the rotation operation, and can achieve stable operation. It is possible to extend the lifetime of the equipment while improving the work efficiency.

The driving means 30 is fixed to the upper portion of the support frame 10 and connected to the rotary shaft 120 of the foam removing unit 100 to transmit the rotary power to the rotary shaft 120.

That is, the rotational power of the driving means 30 is finally applied to the rotating body 110 of the foam removing unit 100 via the rotating shaft 120.

FIG. 7 is an exemplary view showing a use state of a magnetic in-plane surface stirrer according to an embodiment of the present invention. FIG.

Referring to FIG. 7, the use state or operation relationship of the magnetic in-plane surface stirrer according to the embodiment of the present invention is easy to carry out as described below.

First, when the wastewater continues to flow into the treatment tank 5, the rotating body 110 of the foam removing unit 100 floats on the water surface and comes into contact with the foam produced along with water on the water surface of the wastewater.

At this time, as the driving means 30 is driven, the rotating shaft 120 is rotated, and the rotating force of the driving means 30 is transmitted to the rotating body 110 through the rotating shaft 120 and rotated.

As the rotating body 110 is rotated, the breaking blade 115 blows water along with water by hitting the water surface including bubbles, thereby splashing water to remove bubbles.

Here, the rotating body 110 moves up and down according to the water level while continuously holding the floated state on the water surface, and the guide shaft 120b of the rotating shaft 120 guides in the vertical direction to move the working position of the rotating body 110 By modifying, it is possible to continuously remove bubbles from low water level to high water level.

That is, the magnetic surface type surface stirrer according to the present invention maximizes the removal efficiency of bubbles while preventing the regeneration of the bubbles by removing the bubbles at all times from the low water level since the position of the rotating body flows upward and downward according to the level of the wastewater It is possible.

Further, since the magnetic stirrer type surface stirrer according to the present invention does not require a carry-out operation for discharging bubbles or a separate spraying configuration, it is possible to reduce the manufacturing cost of the apparatus, It will be possible to secure the above.

In addition, since the present invention can be simply mounted on a manhole cover of a treatment tank, the structure is simple, so that facility installation is simple, and production cost and maintenance cost of the product can also be reduced.

The present invention includes a rotatable rotating body located on the water surface of the waste water at all times, so that it is possible to reduce the energy consumption and the maintenance cost by reducing the load and improve the bubble removing efficiency.

Further, the present invention drives the rotating body and the crushing blade in a slightly submerged state in water to scatter water together with the foam, thereby making it possible to further expand the foam removing area and more effectively remove the foam.

Accordingly, the present invention can prevent the rotor and the crushing blade from adhering to the bubbles from the contact with water, thereby extending the service life of the equipment configuration and reducing the power loss, thereby further lowering the maintenance cost.

While the present invention has been described in connection with what is presently considered to be practical exemplary 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 appended claims. Are also within the scope of the present invention.

5: Treatment tank 7: Manhole cover
10: support frame 20:
30: driving means 100: foam removing agent
110: rotating body 111: rotating body
112: fitting part 115: crushing blade
115a: contact inclined portion 115b: upper bent edge
115c: Lower bending end 120:
120a: drive shaft 120b: guide shaft
125: hanging chin

Claims (10)

1. A magnetic levitation surface stirrer mounted on a treatment bath having a top manhole cover,
A support frame fixedly installed on the manhole cover;
A rotating body which rotates in contact with the water surface of the wastewater flowing into the treatment tank so that the bubbles and water are crushed and scattered and flows in the vertical direction according to the level of the wastewater; And a rotating shaft for guiding the lifting movement of the rotating body so that the rotating body is elastically moved up and down according to the level of the wastewater;
A shrinking portion installed in the support frame for fixing the rotary shaft so that the rotary shaft of the foam removing unit is rotated; And
And a driving unit fixedly installed on the upper portion of the support frame and coupled to the rotation shaft to transmit rotational power to the rotation shaft.
The rotary electric machine according to claim 1,
And is connected to the lower end of the rotary shaft in a structure in which four sides are closed so as to form an inner hollow space,
A rotating body having an engaging opening that is in contact with and connected to the rotating shaft so as to slide up and down in the longitudinal direction of the rotating shaft; And a crushing blade formed above the crushing blade.
The method according to claim 2,
A bubble generator for generating bubbles in the water,
And a lower bending step formed by bending at the lower end of the contact inclined portion and extending toward the bending direction, wherein the lower bending end is bent at the upper end of the contact inclined portion, Wherein the magnetic stirrer is a magnetic stirrer.
The method according to claim 3,
Characterized in that the bubble and the water are inclined downward toward the rotating direction of the rotating body so that the bubble and water are dispersed upward on the boundary line between the bubble and the water or the floating position is maintained on the boundary line between the bubble and the water when the rotating body rotates. agitator.
4. The apparatus according to claim 3, wherein the tilted inclination angle (?) Of the contact tilting portion
Is an optimum angle which is set to 40 to 50 degrees within a range of 1 to 90 degrees based on the rotation axis to enlarge a scattering region in which the foam and water are dispersed upwardly.
2. The apparatus according to claim 1,
And a guide shaft extending in the longitudinal direction of the lower end of the driving shaft and leading in a vertical linear direction so that the rotating body vertically moves upward and downward. A magnetic stirrer surface stirrer.
7. The apparatus according to claim 6,
Further comprising a stopper disposed at a boundary between the drive shaft and the guide shaft to prevent upward movement of the rotating body.
2. The apparatus according to claim 1,
Wherein the rotary shaft is supported and fixed on the upper side of the rotary shaft, and the rotary shaft is disposed in a double-spaced state with a difference in the longitudinal direction of the rotary shaft.
2. The apparatus according to claim 1,
And is finally applied to the rotating body of the foam removing unit via the rotating shaft.
The apparatus of claim 1, wherein the lower portion of the support frame
And the load of the shrinking portion is supported so that the rotation shaft connecting the driving means and the rotating body in direct contact with the bubble in the processing tank and the rotating body which is in direct contact with each other is prevented.

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