KR102096208B1 - Floating supernatant discharge device is provided with SS exhaust floor plate opening and closing part - Google Patents

Abstract

Disclosed is a floating supernatant discharge apparatus with a floor plate opening/closing part for removing a suspension substance (SS), capable of fundamentally preventing discharge risk of scum and the SS which exceeds a discharge standard due to pure sludge precipitation. According to one embodiment of the present invention, the floating supernatant discharge apparatus comprises: a chamber (100) including a supernatant weir part (110) forming an inflow section supplying supernatant (2) therein and a discharge section discharging the supernatant (2) flowing therein to a supernatant discharge pipe (4) and first and second walls (101, 103) forming a flowing section allowing the supernatant (2) flowing therein to flow to the discharge section together with the supernatant weir part (110); a floating body (200) coupled to a side surface of the chamber (100) and allowing the chamber (100) to float on a discharge cycle water level (B) or a non-discharge cycle water level (C) from sewage (3) of a reactor (1); a support part (300) for supporting the chamber (100) from flow of the sewage (3); a turbidity sensor (400) generating detection information when the turbidity of the flowing supernatant (2) is equal to or greater than a preset value; a control unit (500), when receiving the detection information, injecting compressed air into the floating body (200) to allow the chamber (100) to float on the non-discharge cycle water level (C); and a floor plate opening/closing part (600) discharging the SS (5) suspended in the supernatant (2) received in the flowing section to the reactor (1) by the control unit (500).

Description

Floating supernatant discharge device is provided with SS exhaust floor plate opening and closing part}

The present invention relates to a floating supernatant discharge device equipped with a bottom plate opening and closing portion for excluding SS, and more specifically, to prevent the discharge of the scum at the same time, and at the same time, suspended substances exceeding discharge standards due to poor sludge sedimentation (SS ) It is related to the floating supernatant water discharge device provided with a bottom plate opening and closing part for SS exclusion that can block the discharge concern.

There are various processes for so-called advanced treatment for removing nitrogen and phosphorus from sewage, but most of them are modified based on the A2O (Anaerobic / Anoxic / Oxic) method, which consists of an anaerobic tank, anoxic tank and aerobic tank.

On the other hand, the Sequencing Batch Reactor (SBR) method, which is widely applied in small and medium-sized sewage treatment facilities, is a single reaction tank that changes the concept of space, which is divided into reactors such as anaerobic tank, anaerobic tank, and aerobic tank in A2O method. Method for biologically removing organic matter, nitrogen and phosphorus from sewage under anaerobic, aerobic and anaerobic conditions in which the inflow process, the reaction process, the precipitation process, the discharge process and the rest process of sewage are continuously progressed over time. to be.

In the SBR process discharge process, sewage discharge is performed through a decanter, which is a discharge device. The discharge devices of the currently commercially available SBR methods are largely classified as floating type and fixed type, and according to the type of switchgear, air tube type, electric valve It is divided into types and other tools.

In the case of the electric valve type, it is located below the surface of the outer wall of the continuous batch reactor to control the discharge of the supernatant (symbol) through the opening and closing of the valve. However, there has been a problem in that the supernatant containing a large amount of suspended solids is discharged out of the reaction tank and exceeds the discharge standard due to malfunction of the electric valve or defective opening and closing. Accordingly, in recent years, a floating decanter of the air tube type has been mainly used.

However, in the case of the air tube type, scum floating on the surface of the water is discharged together, and thus there is a possibility of exceeding the discharge standard. In order to prevent this, many SBR methods suggest various types of scum discharge preventing devices.

As a prior art of the scum discharge prevention device, Korean Patent Registration No. 10-0786419, "Floating Decanter", is supported by a housing supported by a support rail fixed to a reaction tank, and is mounted to be movable up and down by buoyancy means such as a buoy. Disclosed is a floating decanter having a baffle and a pump for preventing the inflow of suspended solids, which are suspended in a partially submerged state on the surface of the treated water of the reaction tank so that only the supernatant of the sewage treated by the SBR treatment method is discharged.

In addition, Republic of Korea Registered Utility Model No. 20-0469172, "Floating type decanter" is supported by a hinge unit having a fixed bracket installed on one side of the reaction tank and is rotatably installed, and a rotating tube having branch discharge pipes on both sides and , A discharge pipe connected to the rotation pipe, a buoyant passage installed at the end of the rotation pipe, and valve units installed on the branch discharge pipe to open and close the branch discharge pipe so that the treated water of the reaction vessel can be selectively discharged through the rotation pipe Disclosed is a floating decanter capable of selectively discharging supernatant water using buoyancy.

However, the above prior arts block the discharge of the scum in a suspended state so that only supernatant water is discharged, but it is impossible to detect whether the suspended matter contained in the supernatant flowing from the decanter to the discharge zone exceeds the discharge standard. There was a problem in that there was a concern of the discharge of suspended substances exceeding the discharge standard.

Republic of Korea Registered Patent No. 10-0786419 Republic of Korea Utility Model No. 20-0469172

The present invention has been devised to solve the above problems, and it is possible to fundamentally block the concerns of discharge of scum and at the same time SS that can block the concerns of discharge of suspended matter (SS) exceeding the discharge standard due to sludge sedimentation failure. The purpose is to provide a floating supernatant discharge device equipped with an opening and closing part of the bottom plate for exclusion.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly understood by those skilled in the art from the following description. It could be.

As a technical means for achieving the above object, the floating supernatant discharge device equipped with a bottom plate opening and closing unit for excluding SS according to an embodiment of the present invention, the inlet zone, the supernatant (2) to be introduced into the interior With the supernatant water weir portion 110 and the supernatant water weir portion 110 constituting a discharge area allowing the supernatant water 2 introduced into the supernatant water discharge pipe 4 to flow into the discharge area Chamber 100 is provided with the first and second walls (101, 103) constituting the flow zone; A floating body 200 coupled to the side portion of the chamber 100 and allowing the chamber 100 to float from the sewage 3 of the reaction tank 1 to the discharge cycle water level B or the discharge discharge cycle water level C; A support portion 300 for supporting the chamber 100 from the flow of the sewage 3; A turbidity sensor 400 that generates detection information when the turbidity of the flowing supernatant 2 is greater than a predetermined value; Upon receiving the detection information, the control unit 500 to allow the compressed air to be injected into the floating body 200 to float the chamber 100 to a cycle water level C other than discharge; And a bottom plate opening / closing part 600 to allow the suspended material 5 suspended in the supernatant 2 of the flow zone by the control unit 500 to be discharged to the reaction tank 1.

And the supernatant weir portion 110, the first supernatant weir 111, which forms an inflow zone, to which the rotary shaft 620 provided on the bottom plate opening and closing part 600 is coupled; A second supernatant weir 113 which forms a flow zone together with the first and second walls 101 and 103 and contacts the opening and closing member 610 provided in the bottom plate opening and closing part 600 according to the rotation of the rotating shaft 620; And a third upper water weir 115, which forms the discharge area, and the end of the opening / closing member 610 is contacted to the bottom according to the rotation of the rotating shaft 620, and the bottom is inclined to stop rotation of the opening / closing member 610; Includes.

In addition, the second upper water weir 113, the turbidity sensor 400 is coupled, the rubber packing 114 provided at the bottom to prevent damage to the opening and closing member 610 by collision with the opening and closing member 610; It includes.

And the third upper water weir 115, the lower end is inclined in the direction in which the diameter of the discharge zone is reduced.

In addition, the floating body 200 is coupled to the remaining side portions of the chamber 100 except for one side portion where the inflow zone is provided.

And the floating body 200, the compressed air inlet 210 for the compressed air is injected to allow the chamber 100 to float from the discharge cycle water level (B) to the discharge cycle water level (C); And a compressed air outlet 220 through which the injected compressed air is discharged so that the chamber 100 floats from the discharged non-discharged cycle water level to the discharged cycle water level B.

In addition, the support 300, the support 310 is formed extending in the vertical direction installed in the reaction tank (1); And the ends of the upper and lower support rods 322 and 324 extending in a horizontal direction toward the side wall of the reaction tank 1 from the other side of the chamber 100 facing one side of the chamber 100 provided with the inflow zone. It is provided on, and the upper and lower support rings (321, 323) penetrated through the support (310).

Then, the control unit 500 is connected to the rotating shaft 620 to control the motor 630 to rotate the rotating shaft 620, the suspension material 5 through the opening and closing member 610, the supernatant of the flow zone (2) To be discharged to the reaction tank (1) together.

In addition, the bottom plate opening and closing part 600 is formed extending from the rotating shaft 620 to contact the first wall 101 according to the rotation of the rotating shaft 620, and the flow zone is opened and closed through contact with the first wall 101. It includes; rotation stop member 640 to block the opening of the width (A) or more predetermined by the member 610; includes.

And the bottom plate opening and closing part 600, a third upper water weir () to prevent damage to the opening and closing member 610 or the third upper water weir 115 by the collision of the opening and closing member 610 and the third upper water weir 115 It includes; 115) the rubber packing 650 provided at the end of the opening and closing member 610 in contact with the bottom.

In addition, the chamber 100 is provided on one side of the other side except for the side portion to which the floating body 200 is coupled, and includes a ring portion 120 through which the lifting wire 6 passes.

According to an embodiment of the present invention, the SBR method based discharge device capable of blocking the discharge concern of the suspended solids (SS) exceeding the discharge standard due to the sludge sedimentation failure while fundamentally blocking the discharge concern of the scum. Can provide.

In addition, according to an embodiment of the present invention, it is possible to prevent the suspension material inside the chamber from being discharged to the outside together with the supernatant.

On the other hand, the effects that can be obtained in the present invention are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description. Will be able to.

1 is a front view of a floating supernatant discharge device equipped with a bottom plate opening and closing part for SS exclusion according to an embodiment of the present invention.
2 is a plan view of a floating supernatant discharge device equipped with a bottom plate opening and closing portion for SS exclusion according to an embodiment of the present invention.
Figure 3 is a side view of a floating supernatant water discharge device is provided with a bottom plate opening and closing portion for excluding SS according to an embodiment of the present invention.
4 is a side view showing a state in which the lower side of the chamber 100 is closed among examples of use of the floating supernatant discharge device provided with the bottom plate opening and closing portion for excluding SS according to an embodiment of the present invention.
5 is a side view showing a state in which the lower side of the chamber 100 is opened among the use examples of the floating supernatant discharge device provided with the bottom plate opening and closing portion for excluding SS according to an embodiment of the present invention.

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 to which the present invention pertains can easily practice. However, since the description of the present invention is only an example for structural or functional description, the scope of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments can be variously modified and have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing technical ideas. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such an effect, and the scope of the present invention should not be understood as being limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. When a component is said to be "connected" to another component, it may be understood that other components may exist in the middle, although they may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the components, that is, "between" and "immediately between" or "adjacent to" and "directly neighboring to" should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" include the features, numbers, steps, actions, components, parts or components described. It is to be understood that a combination is intended to be present, and should not be understood as pre-excluding the presence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted to be consistent with the meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

<Configuration>

Hereinafter, with reference to the accompanying drawings, a floating supernatant discharge device 10 provided with a bottom plate opening and closing portion for SS exclusion according to an embodiment of the present invention (hereinafter, referred to as "floating supernatant discharge device 10") I will explain the composition of.) In detail.

1 is a front view of a floating supernatant discharge device provided with a bottom plate opening and closing portion for excluding SS according to an embodiment of the present invention, and FIG. 2 is a floating plate having a bottom plate opening and closing part for excluding SS according to an embodiment of the present invention. 3 is a side view of a floating supernatant discharge device provided with a bottom plate opening and closing portion for excluding SS according to an embodiment of the present invention.

The floating supernatant water discharge device 10 according to an embodiment of the present invention is a device for discharging the supernatant 2 from which the suspended material 5 is excluded to the outside in a suspended state in the reaction tank 1, the chamber ( 100), the floating body 200, the support 300, the turbidity sensor 400, the control unit 500 and the bottom plate opening and closing portion 600 is provided. However, the above-described configuration of the floating supernatant discharge device 10 is not essential, and some of the configurations may be omitted or configurations other than those described above may be added.

The chamber 100 is a device that blocks the inflow of the suspension material 5 and discharges the supernatant 2, which does not exceed the discharge standard, to the outside. The first wall 101, the second wall 103, the supernatant A weir portion 110, a loop portion 120 and an air inlet and outlet portion 130 are provided.

The first wall 101 extends from the top of the chamber 100 toward the bottom, and is spaced apart from the second wall 103 at regular intervals.

And the first wall 101 is in contact with the rotation stop member 640 according to the rotation of the opening and closing member 610 provided in the bottom plate opening and closing part 600 to be described later, the opening and closing member 610 with the rotation stop member 640 ) To stop the rotation.

The second wall 103 extends from the top of the chamber 100 toward the bottom, and is spaced apart from the first wall 101 at a predetermined interval.

The first and second walls 101 and 103 are provided with supernatant weirs 110 in spaces apart from each other, and together with supernatant weirs 110, form a flow zone of supernatant 2. And in the flow zone of the supernatant (2), the supernatant (2) is partitioned by the first and second walls (101, 103) and the supernatant weir (110).

The supernatant water weir portion 110 has an inlet zone and a supernatant water 2 to allow the supernatant 2 to flow into the interior of the chamber 100 together with the side housing of the chamber 100 or the first and second walls 101 and 103. In order to form a discharge zone that allows the flow zone and the supernatant 2 to be discharged from the chamber 100 to flow inside the chamber 100, the first supernatant weir 111, the second supernatant weir 113, and the third supernatant Weir 115 is provided.

The first supernatant weir 111 forms an inflow zone that allows the supernatant 2 to flow into the chamber 100 together with the housing on one side of the chamber 100. Specifically, the first supernatant weir 111 is spaced at a predetermined distance from the housing of one side of the chamber 100, and this separation space serves as the supernatant inlet to allow the supernatant 2 to be introduced.

The second supernatant weir 113 forms a flow zone allowing the supernatant 2 to flow in the chamber 100 together with the first and second walls 101 and 103. Specifically, the second upper water weir 113 is spaced apart from the first wall 101 and the second wall 103 at regular intervals, and is formed to extend in a direction opposite to the first and second walls 101, 103. The supernatant (2) is allowed to flow into the compartment.

And the lower end of the second upper water weir 113 is in contact with the opening and closing member 610 according to the angle at which the opening and closing member 610 is rotated. There is a possibility that the lower end or the opening / closing member 610 of the second upper water weir 113 is damaged by the contact. In order to eliminate the fear of such damage, a rubber packing 114 is provided at the bottom of the second upper water weir 113 to prevent the opening and closing member 610 from being damaged by a collision with the opening and closing member 610.

The third supernatant weir 115 forms a discharge zone that allows the supernatant 2 to be discharged from the chamber 100 together with the other side housing of the chamber 100. Specifically, the third supernatant weir 115 is spaced apart from the other side housing of the chamber 110 by a predetermined interval, and this separation space serves as a supernatant discharge port so that the supernatant 2 is discharged toward the supernatant discharge pipe 4 do.

In addition, the lower end of the third upper weir 115 is in contact with the rubber packing 650 to be described later provided on the end of the opening and closing member 610 according to the angle at which the opening and closing member 610 is rotated, and through this contact, the first The rotation of the opening and closing member 610 together with the wall 101 and the rotation stop member 640 is stopped.

Further, the lower end of the third supernatant weir 115 is made to be inclined in the direction in which the diameter of the supernatant outlet is reduced to stop the rotation of the opening / closing member 610.

Here, the lower end of the third supernatant weir 115 is reduced in diameter toward the discharge direction of the supernatant 2, thereby increasing the flow rate of the supernatant 2 flowing from the supernatant outlet to the supernatant discharge pipe 4 It can have an additional effect.

The loop portion 120 is provided on one side (preferably, the upper side) of the other side except for the side portion to which the floating body 200 is coupled, and the lifting wire for lifting the chamber 100 (not shown) By passing through, the chamber 100 is lifted out from the reaction tank 1.

The air inlet / outlet portion 130 is provided at the upper portion of the chamber 100 to allow air to flow into or out of the chamber 100.

The floating body 200 is coupled to the rest of the side surfaces of the chamber 100 except for one side where the inlet area of the chamber 100 is provided, and through the injection or discharge of compressed air, the chamber 100 sewage of the reaction tank 1 ( Compressed air inlet 210 and compressed air outlet 220 are provided to float from 3) to discharge cycle water level B or discharge discharge cycle water level C.

The compressed air injection port 210 is connected to a compressed air injection device (not shown) operated by the control unit 500 and allows compressed air of the compressed air injection device (not shown) to be injected into the floating body 200.

Here, the compressed air is injected into the interior of the floating body 200 through the compressed air injection port 210 is to ensure that the chamber 100 is suspended from the discharge cycle water level (B) to the cycle water level outside the discharge (C), When compressed air is injected into the interior of the floating body 200 through the compressed air inlet 210, the turbidity of the supernatant 2 in the chamber 100 from the turbidity sensor 400 is detected to be more than a predetermined value. It is time for detection information to be generated.

On the other hand, when the chamber 100 is suspended from the discharge cycle water level (B) by the floating body 200 to the discharge discharge cycle water level (C), the supernatant (2) is prevented from passing through the first supernatant weir (111) It does not flow into the interior of the chamber 100.

That is, when the chamber 100 is suspended from the discharge period water level B by the floating body 200 to the discharge discharge period water level C, the supernatant 2 is prevented from flowing inside.

The compressed air discharge port 220 is connected to a compressed air discharge device (not shown) operated by the control unit 500 and allows compressed air inside the floating body 200 to be discharged through the compressed air discharge device (not shown). .

Here, the compressed air is discharged from the floating body 200 through the compressed air discharge port 220 is to ensure that the chamber 100 is suspended from the non-discharge cycle water level (C) to the discharge cycle water level (B), compressed air When the air is discharged from the floating body 200 through the compressed air outlet 220, the turbidity sensor 400 is closed with the non-generation of detection information, or the flow zone of the chamber 100 is closed or the turbidity sensor 400 is detected information. It is time to generate the detection information after generating, and when the opening / closing member 610 completely closes the flow zone opened through rotation.

As described above, when the chamber 100 is suspended from the main discharge water level C to the discharge cycle water level B by the floating body 200, the supernatant 2 is the first supernatant water, which is an inflow zone of the chamber 100. It passes through the weir 111 and flows into the flow zone formed through the first and second walls 101 and 103 and the second supernatant weir 113.

And the floating body 200 is suspended in the sewage 3 by floating the chamber 100 at the discharge cycle water level B or the cycle water level C other than discharge so that only the supernatant 2 is introduced into the chamber 100. The precipitated material to be precipitated is blocked from entering the interior of the chamber 100.

The support part 300 is provided with a support 310, an upper support ring 321 and a lower support ring 323 to support the chamber 100 from the flow of the sewage 3.

The support 310 is installed inside the reaction tank 1, and is formed to extend in the vertical direction in the same manner as the side wall of the reaction tank 1.

The upper support ring 321 extends in the horizontal direction toward the side wall of the reaction tank 1 from the other side of the chamber 100 opposite to one side of the chamber 100 where the inlet area of the chamber 100 is provided. It is provided at the end of. In addition, the upper support ring 321 is penetrated through the support 310 to prevent the chamber 100 from flowing by the sewage 3 of the reaction tank 1.

The lower support ring 323 is horizontally directed toward the side wall of the reaction vessel 1 from the other side of the chamber 100 opposite to one side where the inlet area of the chamber 100 is provided, as in the upper support ring 321. Is formed as an extension, it is provided at the end of the lower support bar (324). In addition, the lower support ring 323 is penetrated through the support 310 in the same way as the upper support ring 321, thereby preventing the chamber 100 from being flowed by the sewage 3 of the reaction tank 1.

The turbidity sensor 400 is used when the turbidity of the supernatant 2 containing the suspension material 5 that can be introduced into the chamber 100 is turbidity equal to or higher than a value previously set in the controller 500, the turbidity sensor 400 Generates detection information for. The turbidity sensor 400 is provided on one side of the second supernatant weir 113 constituting the flow zone of the chamber 100 to sense the turbidity of the supernatant 2 flowing in the flow zone of the chamber 100. Would be desirable.

That is, the turbidity sensor 400 is provided to prevent the suspension material 5 having a predetermined turbidity or higher that may be included in the supernatant 2 flowing into the chamber 100 from being discharged to the outside.

The turbidity sensor 400 may be replaced with a sensor that measures or detects DO, pH, MLSS, temperature, etc. of the supernatant 2, not the turbidity of the supernatant 2 in the present invention. In addition, the turbidity sensor 400 may be provided as a plurality of sensors that measure turbidity, DO, pH, MLSS, temperature, and the like, rather than one sensor.

The control unit 500 receives the detection information from the turbidity sensor 400, and controls the compressed air injection device (not shown) or the compressed air discharge device (not shown) according to whether or not the detection information is received, and the floating body 200 To the compressed air is discharged from the injection or floating body 200, the periodic water level at which the chamber 100 is suspended is changed to the discharge periodic water level B or the non-discharged cycle water level C.

An embodiment in which the control unit 500 changes the cycle water level of the chamber 100 will be described in detail in a use example to be described later.

The bottom plate opening / closing part 600 discharges the supernatant 2 flowing in the flow zone of the chamber 100 into the reaction tank 1 or in the flow zone of the chamber 100 depending on whether the control unit 500 receives the detection information. Opening and closing members 610, a rotating shaft 620, a motor 630, a rotating stop member 640 and a rubber packing to discharge the flowing supernatant 2 into the discharge zone of the chamber 100 and the supernatant discharge pipe 4 650) is provided.

The opening / closing member 610 keeps the lower side of the chamber 100 open or open to prevent the suspension material 5 suspended in the supernatant 2 from being discharged to the outside, or the supernatant 2 is the chamber ( In order to allow the discharge zone of 100) and the supernatant discharge pipe 4 to flow, the lower side of the chamber 100 is kept closed or closed.

The opening and closing member 610 is coupled to one end of the rotating shaft 620 coupled with the lower end of the first upper water weir 111, and the rubber packing 650 contacting the lower end of the third upper water weir 115 is provided at the other end. do.

The rotating shaft 620 is coupled to one end of the opening and closing member 610, and the opening and closing member 610 rotates the opening and closing member 610 to open or close the lower side of the chamber 100.

The motor 630 is connected to the rotating shaft 620, and when the control unit 500 receives the detection information, it is controlled by the control unit 500 to generate a driving force to rotate the rotating shaft 620, thereby rotating the rotating shaft 620 As possible.

The rotation stop member 640 is formed extending from the rotation shaft 620, and the rotation of the opening / closing member 610 is stopped through contact with the first wall 101 according to the rotation of the rotation shaft 620. Block the flow zone from opening beyond a predetermined width (A).

The rubber packing 650 is the third upper water weir () to prevent the opening and closing member 610 or the third upper water weir 115 from being damaged by the collision of the other end of the opening and closing member 610 with the third upper water weir 115. 115).

<Use example>

Hereinafter, with reference to the accompanying drawings will be described in detail the use of the floating supernatant water discharge device 10 according to an embodiment of the present invention.

4 is a side view showing a state in which the lower side of the chamber 100 is closed among examples of use of the floating supernatant discharge device provided with a bottom plate opening and closing unit for excluding SS according to an embodiment of the present invention, and FIG. 5 is a side view of the present invention It is a side view showing a state in which the lower side of the chamber 100 is opened among the use examples of the floating supernatant discharge device provided with the bottom plate opening and closing portion for excluding SS according to an embodiment.

First, referring to FIG. 4, an example of using the state in which the lower side of the chamber 100 is closed, the turbidity sensor 400 controls the turbidity of the supernatant 2 flowing in the flow zone of the chamber 100 to the control unit 500. When the sensing information is not generated by detecting that the turbidity is less than a predetermined value by), the controller 500 does not receive the sensing information from the turbidity sensor 400.

In addition, when the chamber 100 floats on a cycle water level C other than discharge, the control unit 500 controls the compressed air discharge device (not shown) to compress the compressed air of the floating body 200 to the compressed air discharge port 200. By being discharged from the floating body 200 through, the chamber 100 is suspended in the discharge cycle water level B.

Alternatively, the control unit 500 maintains the current state when the chamber 100 floats at the discharge cycle water level B.

In addition, the control unit 500 controls the motor 630 so that the opening and closing member 610 is rotated when the lower side of the chamber 100 is opened while the chamber 100 is floating on the cycle water level C other than discharge. The lower side of 100) is closed, and compressed air is discharged from the floating body 200 by controlling the compressed air discharge device (not shown) so that the chamber 100 is suspended at the discharge cycle water level B.

Alternatively, the control unit 500 maintains the current state when the lower side of the chamber 100 is closed while the chamber 100 is suspended at the discharge cycle water level B.

On the other hand, with reference to FIG. 5, an example of use in a state in which the lower side of the chamber 100 is opened, the turbidity sensor 400 controls the turbidity of the supernatant 2 flowing in the flow zone of the chamber 100 to the control unit 500. When generating sensing information by detecting that the turbidity is higher than a predetermined value by), the controller 500 receives the sensing information generated from the turbidity sensor 400.

In addition, when the chamber 100 is suspended in the discharge cycle water level B, the control unit 500 controls the compressed air injection device (not shown) so that the compressed air is injected into the floating body 200 so that the chamber 100 is Make it float at the cycle water level (C) other than discharge.

Alternatively, the control unit 500 maintains the current state when the chamber 100 floats on the cycle water level C other than discharge.

In addition, when the lower side of the chamber 100 is closed while the chamber 100 is floating on the discharge cycle water level B, the control unit 500 controls the motor 630 so that the opening / closing member 610 is rotated to control the chamber 100 ) So that the lower side is opened. In particular, the motor 630 is controlled such that the lower side of the chamber 100 is opened to a predetermined width A.

Alternatively, the control unit 500 maintains the current state when the lower side of the chamber 100 is opened to a predetermined width (A) while the chamber 100 is floating at a cycle water level C other than discharge.

The detailed description of preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and practice the present invention. Although described above with reference to preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a manner of combining with each other. Accordingly, the present invention is not intended to be limited to the embodiments presented herein, but to give the broadest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments presented herein, but is intended to give the broadest scope consistent with the principles and novel features disclosed herein. In addition, in the claims, claims that do not have an explicit citation relationship may be combined to constitute an embodiment, or may be included as new claims by amendment after filing.

1: reactor, 2: supernatant,
3: sewage, 4: supernatant discharge pipe,
5: suspension material,
10: floating supernatant discharge device, 100: chamber,
101: first wall, 103: second wall,
110: first weir, 111: first weir,
113: second upper weir, 114: rubber packing,
115: third upper weir, 120: ring,
130: air inlet, 200: floating body,
210: compressed air inlet, 220: compressed air outlet,
300: support, 310: support,
321: upper support ring, 322: upper support bar,
323: lower support ring, 324: lower support bar,
400: turbidity sensor, 500: control unit,
600: bottom plate opening and closing portion, 610: opening and closing member,
620: rotating shaft, 630: motor,
640: rotation stop member, 650: rubber packing,
A: preset width, B: discharge cycle water level,
C: Cycle level other than discharge.

Claims (11)

In the floating supernatant water discharge device (10) for discharging the supernatant (2) from which the suspended material (5) is excluded while suspended in the reaction tank (1),
The supernatant water weir portion 110 and the supernatant water weir portion 110 which form an inflow zone for the supernatant water 2 to be introduced into the inside, and the discharge zone for the supernatant water 2 introduced into the supernatant to be discharged to the supernatant discharge pipe 4 ) And the chamber 100 is provided with the first and second walls (101, 103) constituting a flow zone that allows the supernatant (2) flowing into the flow to the discharge zone;
A floating body (200) coupled to the side of the chamber (100) and allowing the chamber (100) to float from the sewage (3) of the reaction tank (1) to the discharge cycle water level (B) or to the discharge cycle water level (C). );
A support portion 300 for supporting the chamber 100 from the flow of the sewage 3;
A turbidity sensor 400 that generates sensing information when the turbidity of the flowing supernatant 2 is more than a predetermined turbidity;
When receiving the detection information, the control unit 500 to allow the compressed air to be injected into the floating body 200 to float the chamber 100 to a cycle water level (C) other than the discharge; And
It includes; the bottom plate opening and closing portion 600 to allow the suspended material (5) suspended in the supernatant (2) of the flow zone by the control unit 500 to be discharged to the reaction tank (1),
The supernatant weir portion 110,
A first supernatant weir 111 in which the rotating shaft 620 provided in the bottom plate opening and closing part 600 is coupled to form the inflow zone;
The second supernatant weir that forms the flow zone together with the first and second walls 101 and 103 and contacts the opening and closing member 610 provided in the bottom plate opening and closing part 600 according to the rotation of the rotating shaft 620. (113); And
A third upper water weir (which forms the discharge zone, is in contact with the end of the opening and closing member 610 according to the rotation of the rotating shaft 620, the lower end being inclined to stop rotation of the opening and closing member 610 ( 115); floating supernatant water discharge device is provided with a bottom plate opening and closing for SS exclusion, characterized in that it comprises a. delete According to claim 1,
The second upper water weir 113,
SS, characterized in that it comprises; the turbidity sensor 400 is coupled, rubber opening 114 provided at the bottom to prevent damage to the opening and closing member 610 by collision with the opening and closing member 610; Floating supernatant discharge device provided with a bottom plate opening and closing part for exclusion. According to claim 1,
The third upper water weir 115,
A floating supernatant discharge device having a bottom plate opening and closing part for SS exclusion, characterized in that the lower end is inclined in a direction in which the diameter of the discharge area is reduced. According to claim 1,
The floating body 200,
Floating supernatant water discharge device having a bottom plate opening and closing for SS exclusion, characterized in that coupled to the rest of the side of the chamber 100, except for one side of the inlet area is provided. The method of claim 5,
The floating body 200,
A compressed air inlet 210 through which compressed air is injected so that the chamber 100 floats from the discharge cycle water level B to the discharge cycle water level C; And
The SS exclusion bottom characterized in that it comprises; a compressed air discharge port (220) through which the injected compressed air is discharged to allow the chamber (100) to float from the discharge cycle level to the discharge cycle level (B). Floating supernatant discharge device provided with a plate opening and closing portion. According to claim 1,
The support 300,
A support 310 extending in a vertical direction installed in the reaction tank 1; And
The upper and lower support rods 322 and 324 extending horizontally from one side of the chamber 100 provided with the inflow zone to the side wall of the reaction tank 1 from the other side of the chamber 100 facing the other side. A floating supernatant discharge device provided with a bottom plate opening and closing part for SS exclusion, which is provided at an end and includes; upper and lower support rings 321 and 323 penetrating the support 310. According to claim 1,
The control unit 500,
It is connected to the rotating shaft 620 to control the motor 630 to rotate the rotating shaft 620, the suspension material (5) through the opening and closing member 610 with the supernatant (2) of the flow zone Floating supernatant water discharge device equipped with a bottom plate opening and closing for SS exclusion, characterized in that to be discharged to the reaction tank (1). According to claim 1,
The bottom plate opening and closing part 600,
Is formed extending from the rotating shaft 620 is in contact with the first wall 101 according to the rotation of the rotating shaft 620, through the contact with the first wall 101, the flow zone is the opening and closing member 610 Floating stop water discharge device provided with a bottom plate opening and closing portion for SS exclusion, characterized in that it comprises a; rotation stop member 640 to block the opening of more than a predetermined width (A) by. The method of claim 4,
The bottom plate opening and closing part 600,
The lower end of the third upper water weir 115 to prevent damage to the opening and closing member 610 or the third upper water weir 115 due to the collision of the opening and closing member 610 and the third upper water weir 115 And a rubber packing 650 provided at an end of the opening / closing member 610 in contact with the floating supernatant discharge device provided with a bottom plate opening / closing unit for SS exclusion. According to claim 1,
The chamber 100,
The floating body 200 is provided on one side of the rest of the side except for the side portion to be coupled, the hook portion 120 through which the lifting wire is passed; Floating supernatant discharge device.

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