KR100707490B1 - Decanter - Google Patents

Abstract

The present invention is to be installed to move up and down in the reaction tank to the water treatment to minimize the pollution of the river by preventing the discharge of pollutants by selectively collecting and discharging only the symbol water of the bioreactor tank And a collecting container into which the symbol water flows in, a driving unit for raising and lowering the collecting container, a sealing plate for selectively opening and closing the lower part of the collecting container, and raising and lowering the sealing plate with respect to the collecting container to selectively open and close the collecting container. To provide a symbol water discharge device which is connected to the opening, the discharge tube for the discharge pipe for drawing the symbol water in the collecting container and a control unit for controlling the operation of each of the driving unit and the opening and closing.

Collector, hermetic plate, float, blower, wire, sealing material

Description

Super water discharge device {Decanter}

1 is a schematic configuration diagram showing a structure in which a symbol water discharge device according to an embodiment of the present invention is installed in a reaction tank.

2 and 3 are perspective views showing the structure of the symbol water discharge apparatus according to an embodiment of the present invention.

4 is a cross-sectional view of the symbol water discharge apparatus according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

600: reactor 630: raw water inlet pipe

640: diffuser 641: air pipe

642: Blower 650: Symbol Collector

651: guide bar 652: frame

653: collecting container 654: driving motor

655: wire 656: sealing plate

657: discharge pipe 660: floating body

661: guide holder 662: guide rod

663: nozzle 664: airline

665: exhaust pipe 666: sealing material

670,671,672: Valve 680: Sensor

681: controller 682: pump

The present invention relates to a facility for treating sewage, sewage, and wastewater. More specifically, the present invention relates to a symbolic water discharge device which can easily discharge only symbolic water from a bioreactor of sewage and wastewater treatment facilities.

In general, in the reaction tanks of sewage and wastewater treatment facilities, raw water is introduced to precipitate sludge generated after biological or chemical reactions, and only the symbolic water on the surface of the water is discharged to the stream.

Therefore, in order to prevent pollution of rivers, there is a need to reliably clean pollutants contained in sewage and wastewater, and to prevent untreated sewage or wastewater, such as symbolic water, from being discharged as symbolic water.

Accordingly, the present invention has been made in view of the above-mentioned necessity, and sewage and wastewater treatment facilities that can minimize the pollution of rivers by preventing the discharge of pollutants by selectively collecting and discharging only symbol water. The purpose is to provide a supernatant discharge device.

In order to achieve the object as described above, the present invention, sewage and wastewater treatment facilities including a reaction tank for separating and discharging the symbolic water, symbol symbol collector for separating and discharging only the symbolic water in the reaction tank is installed, The symbol collector is installed to be moved up and down in the reaction vessel and the lower end is open, the collecting vessel into which the symbolic water is introduced, a drive unit for raising and lowering the collecting vessel, a sealing plate for selectively opening and closing the lower end of the collecting vessel, Opening and closing unit for selectively opening and closing the collecting container by raising and lowering the sealing plate relative to the collecting container, a discharge pipe for communicating with the collecting container to draw the symbol water in the collecting container and a control unit for controlling and operating the respective driving unit and the opening and closing unit It may include.

Here, the opening and closing portion is movable to the upper part of the collecting container, the lower end of the floating body, the guide holder is installed vertically on the side of the collecting container, is installed vertically on the side of the floating body is fitted to the guide holder and the lower end There is a guide rod to which the sealing plate is attached, an air nozzle for supplying air to the inside of the collecting vessel, a blower for supplying air connected to the air nozzle, and installed at the top of the float It may include an exhaust pipe for selectively exhausting air in the fluid.

The driving unit may include a guide bar vertically installed in the reactor, a frame slidably installed along the guide bar, and a collection tube attached thereto, a drive motor installed on the reaction tank, and connecting the drive motor and the frame. In accordance with the operation of the drive motor may include a wire for raising or lowering the frame.

In addition, the controller may include a water level sensor for sensing the water level in the reactor, and a controller for controlling and operating the driving motor according to the signal of the sensor.

In addition, the sealing plate is preferably attached to the sealing material on the surface in contact with the collecting container to increase the sealing force.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the following embodiment, the reactor equipped with the discharge device will be described as an example of a single reactor for removing nitrogen and phosphorus while operating alternately with the aeration stage and the anaerobic stage or the anaerobic stage. That is, a single reactor of a sequencing batch reactor (SBR) method will be described as an example.

Of course, it is not limited to the reactor and all the facilities for treating sewage and wastewater will be applicable to all the equipment surface to finally discharge the symbol water.

1 is a schematic configuration diagram showing a structure in which a symbol water discharge device according to an embodiment of the present invention is installed in a reaction tank, and FIGS. 2 and 3 illustrate a structure of a symbol water discharge device according to an embodiment of the present invention. Perspective view.

According to the drawings, the reaction tank 600 is introduced into the raw water through the transfer pipe 520 installed from the inside to the outside, and the aeration-sedimentation-discharge step may be repeatedly operated in one cycle to maintain aerobic, anaerobic and anaerobic conditions. Consists of a single reactor.

In addition, an aeration part is provided at the bottom of the reactor, and the aeration part is connected through a plurality of diffusers 640 installed at the bottom of the reactor 600, the diffuser 640 and the air pipe 641 to supply air. And a blower 642 for the purpose of operation.

The reactor is equipped with a symbol collector for discharging the symbolic water to the outside, the aeration-sedimentation-discharge in a single reactor is repeatedly operated as one cycle, and the cycle number is operated as an automatic conversion or a randomly selected time depending on the inflow quantity. After the sludge is completely settled, the sewage water is selectively collected and discharged.

Looking at the configuration of the symbol collector as follows.

The symbol collector 650 is attached to the guide bar 651 which is vertically installed in the reactor 600, the frame 652, which is slidably installed along the guide bar 651, the frame 652. A collection vessel 653 which is installed and the bottom thereof is opened and the symbol water flows in, the driving motor 654 installed on the reactor 600, the driving motor 654 and the frame 652 by connecting the driving motor 654. A wire 655 for raising or lowering the frame 652, a sealing plate 656 for selectively opening and closing a lower end of the collecting container 653, and the sealing of the collecting container 653. An opening and closing portion for selectively opening and closing the collecting container 653 by elevating the plate 656, a discharge pipe 657 communicating with the collecting container 653 to draw out the symbol water in the collecting container 653, and the symbol. The control unit for adjusting the position of the collecting container 653 according to the water level Include.

The opening and closing part is placed in the upper portion of the collecting container 653, the floating body 660 is open, the guide holder 661 is installed perpendicular to the side of the collecting container 653, the floating body ( 660 is installed vertically on the side of the guide holder 661 and the lower end of the guide rod 662 to which the sealing plate 656 is attached, and is installed at an upper end of the collecting container 653, and inside the floating body 660. An air nozzle 663 for supplying air to the air, a blower 642 for supplying air if necessary, connected to the air nozzle 663 and an air line 664, and installed on an upper portion of the floating body 660 An exhaust pipe 665 for exhausting air in the fluid 660.

Accordingly, when air is supplied through the air line 664, the air is introduced into the floating body 660, and the floating plate 656 connected to the guide rod 662 as the floating body 660 floats up is collected in the collecting container 653. When the air is shut off and the air is shut off after exhausting the air in the float 660 through the exhaust pipe 665, the float 660 is lowered to allow the sealing plate 656 to open the collecting container 653. do.

In the present embodiment, one blower 642 is provided and connected to the diffuser 640 and the air nozzle 663 of the aeration unit through the air pipe 641 and the air line 664, respectively, so that the air pipe ( Opening and closing valves (670, 671) for opening and closing the flow path is mounted on the 641 and the air line 664 has a structure for supplying the air individually to the place where necessary according to the operation of the opening and closing valve.

In addition, the controller includes a water level sensor 680 for detecting the water level in the reactor 600, and a controller 681 for controlling and operating the driving motor 654 according to the water level signal of the sensor 680. .

Here, the controller 681 controls the opening and closing valves 670, 671, and 672 of the air pipe 641, the air line 664, and the exhaust pipe 665 connected to the blower 642 together with the control operation of the driving motor 654. To operate the device.

The operation of the controller 681 will be described later in detail.

In addition, as shown in FIG. 4, the sealing plate 656 is coated with a sealing material 666 such as silicon on a surface contacting the collecting container 653 so as to maintain airtightness with the collecting container 653.

Hereinafter, the operation of the present invention will be described.

The treated raw water introduced into the reactor is purged while repeating the process of aeration, sedimentation and discharge in one cycle. In this process, the symbol water collector collects only symbol water and discharges it to the outside.

As the pump is driven, the raw water supplied to the reaction tank 600 through the transfer pipe 520 is supplied at a predetermined height into the reaction tank through the raw water inlet pipe 630 installed in the reaction tank 600.

As the blower 642 is driven, air is supplied to the diffuser 640 installed at the bottom of the reactor 600 to be ejected into fine bubbles, and the aeration process proceeds in the reactor.

When the aeration is started, the symbol collector 650 is in a standby state in accordance with the water level in a closed state in which the lower portion of the collecting container 653 is closed by the sealing plate 656. Accordingly, in the aeration process, the contaminants and foreign matters that are turbidly introduced by the aeration into the collection container 653 are completely sealed, thereby completely preventing the inflow of foreign matters.

The reactor is converted to a precipitation step after the aeration process is subjected to the precipitation process of the sludge.

When switching from the aeration stage to the precipitation stage, the blower 642 is stopped under the control of the controller 681 and the air supply to the diffuser 640 is stopped so that the aeration is stopped.

As the aeration stops, sludge in the raw water precipitates under the reactor 600.

By the end of the sedimentation step, the on-off valve 672 is opened by the control of the crawler, which is a symbol after the collecting container 653 of the symbol collector 650 is gradually opened while the air of the floating body 660 is gradually released. The discharge of water is made. When it enters the collecting container, it is installed in a circular shape and flows to the front side. In the case of the conventional structure, the inlet port is vertically directed to the lower part and the suction is impossible at the same time. In contrast, the present invention has a circular inlet with a single inlet 360 degrees all over the side and only flows into the side is not affected by the flow rate at all, and also to prevent the vertical flow rate by the closing plate at the bottom of the inlet source sedimentation by sedimentation Since the symbol water can be discharged and discharged up to the sludge layer, it is economically efficient and stable as it can process a large amount of symbol water at once.

In this embodiment, only one symbol collector 650 is installed in the reaction tank 600 to collect symbol water, but two or more symbol collectors may be installed depending on the size of the treatment facility or the size of the symbol collector.

Here, the discharge of the symbolic water is made in a state in which the aeration stops and the sludge is settled, and during the aeration phase and the precipitation step, the collecting container 653 for collecting the symbolic water is closed by a sealing plate 656 and becomes turbid inside. It completely blocks the inflow of foreign substances such as and sludge.

That is, the controller 681 also has an on / off valve 671 on the air line 664 connected to the air nozzle 663 when the on / off valve 670 on the air pipe 641 connected to the diffuser 640 is opened. After the opening operation, the air is supplied to the air nozzle 663 for a limited time, and then the closing operation is closed immediately to eliminate unnecessary waste of air during the aeration time. And the on-off valve 672 of the exhaust pipe 665 is installed in communication with the floating body 660 before the air supply is closed by the controller to block the discharge of air.

In this state, the air supplied from the blower to the air nozzle 663 is blown into the floating body 660 through the air nozzle 663, and the air is filled in the floating body 660 having only the lower end.

As air is filled in the float 660, the float 660 floats due to buoyancy.

As the float 660 rises, the guide rod 662 installed on the float 660 is also slid up from the guide holder 661 and finally the sealing plate 656 installed on the guide rod 662 is moved upward. It is moved to be in close contact with the lower portion of the collecting container 653.

Therefore, the sealing plate 656 blocks the open lower end of the collecting container 653 and is aerated into the collecting container 653 to block the inflow of raw water containing foreign substances.

The driving motor 654 is operated according to the signal of the controller 681 to move the position of the frame 652 to a position suitable for symbolic water collection according to the water level.

The symbol water collecting position is changed according to the water level in the reaction tank 600. The water level is continuously detected by the water level sensor 680 installed in the reaction tank 600, and the signal of the detection sensor 680 is received. The controller 681 controls and operates the drive motor 654.

When the driving motor 654 is actuated, the wire 655 is unwound or wound to move the frame 652 connected to the wire 655.

For example, when the wire 655 is wound, the frame 652 connected to the wire 655 is raised along the guide bar 651.

As the frame 652 moves, the collecting container 653 attached to the frame 652 is moved to be placed at the symbol water collecting position.

Here, the symbolic water collecting position is located below the layer formed by the foreign matters floating on the upper part of the raw water, and means the point about 40-50cm below the surface of the water to avoid the discharge of the foreign matters.

When the aeration and precipitation steps are coagulated in this way and the collecting container 653 is positioned at an appropriate height in accordance with the water level, the sealing plate 656 is opened to start collecting and discharging the symbolic water.

That is, the on / off valve 671 of the air line 664 connected to the air nozzle 663 is closed under the control of the controller 681, and the on / off valve 672 provided on the exhaust pipe 665 is opened. The air filled in the float 660 while the supply of air into the float 660 is blocked is exhausted to the outside through the exhaust pipe 665.

As air in the float 660 decreases, the float 660 gradually descends toward the collecting container 653 due to the weight of the float 660 and the sealing plate 656.

When the floating body 660 is moved downward, the sealing plate 656 connected to the floating body 660 via the guide rod 662 is also moved downward, and is spaced apart from the bottom of the collecting container 653, and the collecting container ( 653 is open at the bottom.

In this case, the closing time of the sealing plate 656 may be controlled by controlling the opening and closing valve 672 on the exhaust pipe 665 for discharging the air in the floating body 660.

As the sealing plate 656 is opened, the symbol water flows into the collecting container 653 between the collecting container 653 and the sealing plate 656, and the symbol water flowing into the collecting container 653 is the collecting container 653. It may be discharged through a connected discharge pipe 657 connected to.

In this case, when the sealing plate 656 is opened, the inflow (suction) of the symbolic water is performed only along the outer circumference of the circular collecting container 653 to the side in all areas of 360 degrees, so that stable discharge can be achieved regardless of the influence of the flow rate. Will be.

As such, by moving the collecting container 653 according to the water level and opening and closing the lower end of the collecting container 653 according to the aeration time, only the symbol water can be easily collected and discharged.

In the present embodiment, the collecting container is illustrated as a circular structure, but is not limited thereto, and various shapes such as a rectangular shape or an elliptical shape may be applied in addition to the circular shape. In addition, it is possible to deform the floating body on the collecting vessel as a lower sealing plate. The collecting container is possible in various forms, and its size can be variously applied from a small capacity to a large capacity according to the processing capacity.

By discharging symbolic water through the symbolic collector 650 as described above, sludge or suspended solids are partially blocked into the collecting container and discharged during the aeration compared to the conventional method.

Here, as the discharge of the symbol water proceeds, the water level in the reactor continues to drop. When the discharge reaches the set limit level or time limit, the controller stops the discharge operation according to the detection signal or time limit of the water level sensor 680. So that the sludge is prevented as much as possible.

In addition, in the present embodiment, the discharge of the symbol water introduced into the collecting container 653 has a structure formed by driving the pump 682, but is not particularly limited thereto. For example, the drop of the discharge pipe 657 may be lowered. It can also be applied to the structure to discharge the symbolic water using no power, in this case can be used including an automatic valve device.

The present invention can be seen to provide an efficient symbol water discharge device as described above. While exemplary embodiments of the invention have been shown and described, various modifications and other embodiments may be made by those skilled in the art. If it is well known, in addition to the above-mentioned floating body using air, which is the non-power required for the opening and closing operation of the sealing plate, the opening and closing operation may be performed using power, and may also be installed under the submersible motor. The function of opening and closing can be used in various ways. Such modifications and other embodiments are all considered and included in the appended claims, without departing from the true spirit and scope of the invention.

According to the symbol water discharge device according to the present invention as described above, it is possible to minimize the environmental pollution by the discharge of pollutants by preventing the source of the sludge contained in the symbol water to selectively discharge only the symbol water.

Claims (5)

It is installed to be moved up and down in the reaction tank in which the water treatment is performed, and the lower end is opened, the collecting container into which the symbol water flows in, the driving unit for raising and lowering the collecting box, the sealing plate for selectively opening and closing the lower end of the collecting container, and the collecting container. And an opening and closing portion for selectively opening and closing the collecting container by raising and lowering the sealing plate, a discharge pipe communicating with the collecting container for drawing out symbol water in the collecting container, and a control unit for controlling and operating the respective driving units and the opening and closing unit. Super water discharge device. The method of claim 1, The driving unit is a guide bar installed vertically in the reactor, the frame is slidably installed along the guide bar and the collecting container is attached, the drive motor is installed on the reaction tank, the drive motor and the frame is connected to the drive Symbolic water discharge device including a wire for raising or lowering the frame in accordance with the operation of the motor. The method of claim 2, The control unit is a symbol water discharge device including a water level sensor for detecting the water level in the reaction vessel, and a controller for controlling and operating the drive motor according to the signal of the sensor. The method according to any one of claims 1 to 3, The opening and closing portion is movably placed on the upper part of the collecting container, and the lower part is an open body, a guide holder installed vertically on the side of the collecting container, and installed vertically on the side of the floating body and fitted to the guide holder. A guide rod to which the sealing plate is attached, an air nozzle installed at an upper end of the collecting container, a blower connected to the air nozzle to supply air, and installed at an upper end of the floating body Symbolic water discharge device including an exhaust pipe for selectively exhausting the air in the. The method of claim 4, wherein The sealing plate is a symbol water discharge device is attached to the sealing material in contact with the collecting container.

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