KR101455180B1 - Pressure airflotation for stream disperse - Google Patents

Abstract

The present invention relates to a water stream dispersion type pressure air floatation tank including: a housing (100) having a waste water introduction tank (101) and a floatation separation tank (102) therein; multi-stepped first, second and third distribution parts (210, 220, 230) having gradually increasing area and disposed on one sidewall of the waste water introduction tank (101) having a waste water introduction hole (A) to widely distribute and supply influent water; a water stream dispersion fixture plate (310) in which a plurality of dispersion holes (311) are defined in a predetermined distance, the water stream dispersion fixture plate (310) being fixedly disposed on a boundary line of the waste water introduction tank (101) and the floatation separation bath (102); a water stream dispersion driving plate (320) vertically sliding on the water stream dispersion fixture plate (310) and in which a dispersion hole (321) matching with the dispersion hole (311) is defined; a bubble and floatation sludge collector (400) for collecting bubble and floatation sludge on an upper portion of the housing (100); a discharge tube (500) for easily adjusting a discharge amount and pressure of effluent water supplied from the floatation separation tank 102 to a wast water discharge tank (103) by using a valve (501); and a circulation line (601) connected between the waste water introduction tank (101) and the floatation separation tank (102), the circulation line (601) pressurizing discharge water of the floatation separation tank (102) with outdoor air by using a high-pressure pump (600) to transfer the pressurized water into the waste water introduction tank (101). Thus, the tank may rapidly easily respond according to the introduction amount and concentration of the waste water to properly adjust uniform dispersion and flow velocity, thereby increasing floatation efficiency of floating materials and saving an installation space due to a compact structure thereof.

Description

{Pressure air flotation for stream disperse}

The present invention relates to a water-dispersed pressurized float tank, and more particularly, it relates to a flood control type float tank capable of easily adjusting the flow rate and the uniform distribution of inflow wastewater according to the inflow amount of the wastewater or the concentration of the wastewater. The present invention relates to a water floating type floating floatation vessel capable of maximally increasing floatation efficiency of a floating body in response to an easy response, and being installed in a compact facility, thereby saving the installation space as much as possible.

Generally, in case of discharge of wastewater (hereinafter referred to as "wastewater") which is polluted and discharged from waste water, wastewater including various domestic sewage from home and business places, factories of various industrial sites, livestock farms, etc., Of course, since it is the main cause of soil and air pollution, such wastewater must be cleaned and discharged through a wastewater treatment device.

As a system for treating wastewater, there is a wastewater treatment apparatus including a floatation tank, a settling tank and an oil water separator, wherein the floatation tank is a solid / liquid separation system in which a substance, which is lighter than water, Liquid separator for precipitating and removing a substance heavier than water in the wastewater to the lower part of the treatment tank. The oil water separator is a device for removing the self-lifting force (natural injury) of a substance (natural injury) Is used to separate water from water.

In the conventional wastewater treatment apparatus having no blocking plate in the wastewater treatment tank, since the wastewater flowing into the wastewater inlet through the wastewater inlet is floated in the wastewater treatment tank without being roughly moved in the horizontal direction, As the floatation efficiency of sludge drops considerably, wastewater treatment functions such as the amount of floatation sludge are insufficient. In order to increase the throughput of the wastewater treatment system with such a structure, the size of the facility must be excessively increased. It should be consumed.

Prior art for solving this problem is disclosed in Korean Patent Publication No. 10-2007-0048142 (published on May 8, 2007) of the following patent document registered by the applicant of the present application, and includes a flotation tank, a waste water treatment including a settling tank and an oil separator (Hereinafter referred to as "prior art 1") and a vertical induction plate type flotation tank using a flow of water in a wastewater treatment apparatus of Patent Publication No. 10-2012-0068327 (published on Jun. 27, 2012) (Hereinafter referred to as " Prior Art 2 ").

In the prior art 1, a plurality of water distribution panels having a plurality of holes are formed in the wastewater treatment tank, a sedimentation induction tank filled with a plurality of swash plates is installed at the rear of the water dispersion panels, And a flow rate adjusting unit for adjusting the flow rate and speed of the wastewater by adjusting the flow rate of the wastewater discharged from the wastewater discharge outlet according to the size of the inlet port. So that it can be adjusted.

In the prior art 2, a water distribution panel having a plurality of holes is provided between a wastewater inlet and a wastewater outlet of a wastewater treatment tank to form a vertical space flow with dozens of vertical guide plates having a wave- The induction part is installed between the water distributing panels and the water flow control valve installed on the bottom of the water flow control valve isolated on the inner part of the wastewater treatment tank is installed to make the water flow upward. In front of the water flow control valve, The water flow distribution panel and the wave guide vertical guide plates change the flow of the water flow to the uniform vertical flow and decrease the flow rate of the water flow so as to sufficiently secure the floatation time of the foreign matter, .

Korean Patent Laid-Open Publication No. 10-2007-0048142 (published on May 8, 2007) discloses a wastewater treatment apparatus including a flotation tank, a settling tank and an oil water separator, Korean Patent Publication No. 10-2012-0068327 (published on Jun. 27, 2012) discloses a vertical induction plate type flotation tank using a flow of water in a waste water treatment apparatus,

However, the prior art 1 uses a sedimentation induction tank in which the inclined plate is obliquely inclined, inducing the flow of the water stream downward to induce the sediment of the wastewater downward, but the floating effect of the foreign matter is not so good .

The prior art 2 proposed to solve the problem of the prior art 1 can increase the floatation efficiency of the foreign matter by slowing the flow rate of the water flow. However, according to the inflow amount of the wastewater or the concentration of the wastewater, It is not possible to easily adjust the speed of the float to the site where the fluctuation of the inflow of wastewater is severe. Therefore, it is difficult to quickly and easily cope with the installation of the float, so that the floatation efficiency of the float can not be maximized.

In addition, since the size can not be installed in a more compact size depending on the installation space, there is a problem that the installation space is limited.

SUMMARY OF THE INVENTION The present invention has been developed to solve the problems of the prior art described above, and it is an object of the present invention to provide an apparatus and method for efficiently distributing wastewater flowing into a wider area, So that it is possible to quickly cope with the installation of the water flooding type floating float tank.

Another object of the present invention is to provide a water dispersion which can maximize the floatation efficiency and can be installed in a compact facility while minimizing installation space, Type pressurized floating tank.

The above-described object of the present invention is also achieved by a washing machine comprising: a housing, which is compact in size and whose inside is divided into a waste water inflow tank and a floating separation tank; A first, a second, and a third distribution unit installed in an outer wall of a waste water inflow side and provided in a staggered arrangement so that the number of distribution holes increasing in an area gradually increasing from the waste water inlet A to the waste water inflow chamber do not overlap each other; A water dispersion fixed plate and a water dispersion dispersing copper plate which are installed at a predetermined height on a boundary line between a wastewater inflow tank and a floating separation tank and each have a water dispersion hole; A bubble and floating sludge collector installed in the upper part of the housing for circulating rotation to collect bubbles and floating sludge and send them to the sludge discharge tank; The other end is connected to the waste water discharge tank to control the flow rate and pressure of the wastewater according to the opening degree of the valve. The outer surface of the wastewater inflow tank and the floating separation tank is connected to a floating separation tank Pressure pump and a circulation line that pressurizes the outside air to the wastewater inflow tank to the drawn-out water that is drawn out from the wastewater inflow tank.

Another object of the present invention is to provide a water dispersion fixed plate that forms a dispersion hole as a whole from the upper part to the lower part depending on the amount of water flowing into the wastewater being very large or small or depending on the concentration of the suspended substance, Or a plurality of induction plates each having a wavy cross section in the floating separation tank and provided with the inclined space flow inducing unit or the vertical space flow inducing unit.

According to the present invention, it is possible to quickly and easily adjust the uniform distribution and flow velocity of the inflow wastewater according to the inflow amount of the wastewater or the concentration of the wastewater at an optimal optimum speed. Therefore, sufficient mixing effect and floatation effect can be obtained, Can be increased as much as possible.

In addition, it is very easy to cope with fluctuations in the amount of wastewater when installed on a site where fluctuation of wastewater inflow is severe due to the flow control by the water distribution panel fixed plate and movable plate and the operation of the pressure control valve of the outflow pipe.

In addition, the three-stage distributing unit is integrally assembled to the outer wall of the housing, and the wastewater inflow tank and the floating separating tank are provided together in the housing to effectively mix the wastewater and the fine bubbles to improve floatation efficiency, The size can be maintained in a compact size, so that it is possible to save the installation space as much as it is not restricted by the installation space.

1 is a plan view schematically showing a pressurized floating structure of the present invention;
FIG. 2 is a plan view showing an enlarged view of the three-stage distributor structure in the pressurized floating-
FIG. 3A is a side view of an embodiment schematically showing the pressurized floating tank of the present invention
3B is a front view showing the water dispersion fixed plate and the water dispersion copper plate used in FIG.
4A is a side view of another embodiment schematically showing the pressurized floating tank of the present invention
FIG. 4B is a front view showing the water dispersion fixed plate and the water dispersion dispersing copper plate used in FIG.

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

FIG. 1 is a plan view showing an example of a pressurized floating tank of the present invention. FIG. 2 is a plan view of a three-stage distribution structure at the tip of a pressurized floating tank according to the present invention. And a waste water outlet (B) are provided on both sides of the housing (100), the pressurized floating tank for waste water treatment is constituted by the housing (100) having a compact size.

The present invention is characterized in that the interior of the housing 100 is divided into a wastewater inflow tank 101 and a floating separation tank 102. The first, second and third distribution units 210 and 220 230 are assembled and installed in the outer wall of the housing 100 at the side of the waste water inflow tank 101 so that the area gradually increases from the waste water inlet A toward the waste water inflow tank 101 and the distribution holes 211, (231) is increased, but is formed in a zigzag manner so as not to overlap with each other.

A water dispersion dispersing copper plate 320 which is slid on the water dispersion fixed plate 310 and the water dispersion fixed plate 310 at a predetermined height and lifted up and down is installed on the boundary line between the waste water inlet tank 101 and the floating separation tank 102 do.

A plurality of dispersion holes 311 and 321 are formed at predetermined intervals in the water flow dispersion fixed plate 310 and the water flow dispersion copper plate 320 so that when the dispersion holes 311 and 321 are aligned with each other, And when the water distributor copper plate 320 is moved upward, the water flow passage holes gradually become smaller while gradually decreasing the water flow passage holes.

A bubble and a floating sludge collector 400 are installed in the upper portion of the housing 100 to circulate and collect bubbles and floating sludge and send them to the sludge discharging tank 401.

The outflow pipe 500 is connected to the waste water discharge tank 103 in the state where one end having a plurality of outflow holes is connected to the waste water discharge tank 103. The outflow pipe 500 is connected to the valve 501 So that the flow rate and pressure of the wastewater can be adjusted according to the degree of opening of the valve 501.

A high pressure pump 600 is provided on the outer surface between the waste water inflow tank 101 and the floating separating tank 102 for pressurizing the external air to the effluent extracted from the floating separating tank 102 and sending it to the waste water inflow tank 101 A circulation line 601 is installed.

The present invention is characterized in that the first distributor 210 in which the influent water (raw wastewater) flows sequentially from the waste water inlet A has a larger number of distribution holes 211 than the waste water inlet A and the second distributor The number of the distribution holes 221 is larger than that of the first distribution portion 210 and the number of the distribution holes 231 is larger than that of the second distribution portion 220 in the third distribution portion 230 Since the positions of the dispensing holes of the respective dispensing portions are staggered so as not to overlap with each other, the inflow water gradually diffuses and flows into the third dispensing portion 230 from the first dispensing portion 210 to the third dispensing portion 230.

In particular, the third distributor 230 is inclined toward the wastewater inlet tank 101 such that the rear diameter thereof is larger than that of the inlet (or funnel), thereby maximizing the dispersion effect of the influent water.

When the inflow water (raw water) through the first, second and third distribution units 210, 220 and 230 is dispersed into the waste water inflow tank 101 as described above, the floating separation tank 102 and the waste water inflow tank When the high pressure pump 600 of the circulation line 601 installed between the circulation line 601 and the circulation line 601 is operated, the outside air pumped by the flotation tank 102 in the pressurization tank is supersaturated through the circulation line 601 Circulation water containing a large amount of fine bubbles made in the state is mixed smoothly and effectively with the influent water (raw water) in the wastewater inlet tank 101.

Therefore, since the particulate matter of the inflow water (raw water) and the fine bubbles are mixed with each other in a sufficient time of contact in the wastewater inflow tank 101, the floating effect can be excellently achieved.

When the pressurized floating vessel of the present invention is installed in a place where the inflow rate of the wastewater is very large or the concentration of the wastewater is high, the dispersion of the water dispersion fixed plate 310 and the water dispersion- When the holes 311 and 321 are formed and constructed, it is possible to easily control the even distribution of the influent water, the diffusion of the flow, and the flow rate during the lifting and lowering operation of the water distributor copper plate 320.

In addition, it is preferable that a plurality of induction plates 700 having a wave shape in cross section are overlapped on the outflow pipe 500 placed in the floating separation tank 102 to provide an inclined space flow inducing unit 710 inclined at an oblique angle.

If the water dispersion fixed plate 310 and the dispersion holes 311 and 321 of the water dispersion dispersing plate 320 are opened too small compared to the water flowed into the waste water inlet tank 101, the flow velocity becomes excessively high, The fine bubbles are not sufficiently brought into contact with the particulate matter and the sufficient floatation effect can not be obtained. In this case, the water distributor 320 is operated to adjust the open size of the dispersion holes 311 and 321 to an appropriate size The flow rate and speed of the water flowing into the floating separation tank 102 can be appropriately adjusted according to the inflow amount and concentration of the wastewater flowing into the wastewater inflow tank 101.

That is, when the inflow water is very large or when the concentration is high, the dispersion hole 311 of the water flow dispersion fixed plate 310 and the dispersion hole 321 of the water flow dispersion floating plate 320 are made to coincide with each other as much as possible. At this time, since the dispersion holes 311 and 321 are formed in the water flow dispersion fixed plate 310 and the water dispersion dispersed copper plate 320 from the upper part to the lower part, the dispersion holes 311 and 321 from the upper part to the lower part are uniformly dispersed And is introduced into the floating separation tank 102.

The water streams passing through the lower dispersion holes 311 and 321 are obliquely inclined and hit obliquely to the front guide plate 700 of the inclined space flow guide portion 710 and are upwardly inclined, 311) 321, so that the particulate matter of the influent water is mixed with the fine bubbles in better contact with each other.

Accordingly, various foreign substances including floating substances float very well. At this time, the wastewater flows downward between the guide plates 700 of the inclined space flow inducing unit 710 inclined in an obliquely reverse direction, It induces the flow to have enough horizontal and vertical space to enhance the dispersion effect.

If the amount of wastewater flows considerably less than the amount of water introduced at the time of designing, if the dispersion holes 311 and 321 are opened too much, the flow velocity becomes too slow, . In this case, it is preferable to move the water dispersion actuator copper plate 320 to block a part of the dispersion holes 311 and 321 coinciding with the water flow dispersion fixing plate 310. In this case, The flow of the air is quickly adjusted to the optimum state.

When the pressurized floating tank of the present invention is installed at a place where the inflow amount of the wastewater is small and the concentration of the suspended matter is low, it is preferable to induce the dispersion flow of the water flow only in a region close to the water surface A dispersion hole 311 is formed in the entire area at regular intervals in the water flow dispersion fixed plate 310 and a dispersion hole 321 is formed only in the upper part in the water dispersion dispersion copper plate 320, As shown in FIG.

If a vertical space flow guide unit 720 is installed vertically installed on the upper part of the outflow pipe 500 in the floatation separation tank 102, The flow of the water current is very weak on the lower side of the water separating tank 102 (on the lower end side without the dispersion hole 311 of the water flow dispersion fixing plate 310), whereas the water flow is distributed and flow only on the upper side of the floating separating tank 102, The water flow passes vertically between the vertically standing guide plates 700 of the vertical space flow inducing unit 720, so that even if the amount of water to be inflow is small, the water flow can obtain sufficient dispersion and flow effects, thereby enhancing the floatation efficiency of the foreign matter.

In the present invention, the suspended solids in the floatation separation tank 102 float up and the separated effluent is supplied upwardly to the waste water discharge tank 103 through the outflow pipe 500. At this time, the valve 501 ) Can be adjusted depending on the degree of opening and closing of the wastewater.

In this case, the inflow amount or the flow rate flowing into the floatation separation tank 102 can be adjusted more appropriately, thereby maximizing the floatation effect of the float. The sludge and bubbles are effectively removed, (103).

100: housing 101: waste water inlet tank
102: floating separation tank 210, 220, 230: first, second,
211, 221, 231: Distribution hole 310:
311,321: Dispersion hole 320: Water dispersion stirrer copper plate
400: floating sludge collector 500: effluent pipe
501: valve 600: high pressure pump
601: circulation line 700: guide plate
710: Inclined space flow inducing unit 720: Vertical space flow inducing unit

Claims (3)

In a pressurized floating vessel for wastewater treatment in which a waste water inlet and a waste water outlet are provided,
A housing 100 having an inside divided into a waste water inflow tank 101 and a floating separation tank 102;
And the distribution holes 211, 221, and 231 are provided so as not to overlap each other as the area is gradually widened from the waste water inlet A toward the waste water inlet tank 101 The first, second, and third distribution units 210, 220, and 230 that gradually and broadly distribute the multi-stage distribution;
A water dispersion fixed plate 310 fixed at a predetermined height on a boundary line between the waste water inflow tank 101 and the floating separation tank 102 and having a plurality of dispersion holes 311 at regular intervals;
A water distributor movable plate 320 slidably moved up and down from one side of the water flow dispersion fixing plate 310 and having a plurality of dispersion holes 321 coinciding with the dispersion holes 311;
A bubble and floating sludge collector 400 installed to be circulated and rotated at the upper portion of the housing 100, collecting bubbles and floating sludge and sending the collected bubbles and floating sludge to a sludge discharge tank 401;
The other end is connected to the wastewater discharge tank 103 of the housing 100 in an upward direction and the wastewater discharge amount and pressure are adjusted according to the degree of opening of the valve 501 And an outlet pipe (500)
A high-pressure pump 600 and a circulation line (not shown) are provided on the outer surface between the waste water inflow tank 101 and the floating separation tank 102 to pressurize the outflow water of the floatation separation tank 102 and send it to the waste water inflow tank 101. 601,
When the pressurized float tank is installed at a place where the amount of wastewater to be introduced is high or the concentration of suspended matter is high,
Dispersion holes 311 and 321 are formed at regular intervals from the upper portion to the lower portion of the water dispersion fixed plate 310 and the water dispersion dispersed copper plate 320. The dispersion holes 311 and 321 are formed on the upper portion of the outflow pipe 500 placed in the floating separation tank 102, A plurality of induction plates 700 in the form of waves are obliquely inclined so that the inclined space flow inducing unit 710 is installed so that the flow of water is guided in an oblique direction,
When the pressurized floating tank is installed in a place where the inflow amount of the wastewater is small and the concentration of the suspended substance is low
Dispersion holes 311 are formed in the entire area of the water dispersion fixed plate 310 at regular intervals and the water dispersion dispersed copper plate 320 is formed only in the upper portion so that the dispersed flow of the water streams is directed toward the water surface portion of the wastewater And a vertical space flow inducing unit 720 in which the induction plates 700 having a wave shape in the cross section are vertically stacked is installed on the outflow pipe 500 placed in the floating separation tank 102, To obtain a pressurized floating bed for wastewater treatment. delete delete

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