KR200436557Y1 - Wastewater Treatment System - Google Patents

Abstract

The present invention relates to a wastewater treatment apparatus, the upper side is opened, the sludge discharge port 11 is provided at the lower end and the sedimentation tank 10 of the upper and lower strait structure provided with a drip tray 12 on the upper edge; The upper edge is disposed at the inner center upper end of the settling tank 10, the upper edge is isolated from the water surface of the settling tank 10, the upper and lower ends are opened, and has a plurality of stirring blades (21b) to push the waste water up and down in the center of the inner A stirrer 21 is provided and the stirrer 21 includes a waste water input hopper 20 having a rotary motor 24 connected to the top thereof; A discharge pump 40 connected to the sludge discharge port 11 of the settling tank 10 to discharge the sludge to the outside; A fresh water tank (50) having an inner space while receiving a lower portion of the sedimentation tank (10) while sealingly sealing the upper outer side and having a lower edge sealed with the ground; The outer peripheral surface of the fresh water tank (50) and the drip tray 12 of the settling tank 10 is characterized in that it is provided with a communication channel 60 to allow the fresh water of the drip tray 12 to enter the fresh water tank (50). do.

Wastewater treatment device, sedimentation tank, agitator blade, fresh water tank, tunnel,

Description

Apparatus for treating waste waters

1 and 2 is a schematic longitudinal cross-sectional view showing a wastewater treatment apparatus according to an embodiment of the present invention.

3 is a schematic plan view showing a wastewater treatment apparatus according to an embodiment of the present invention.

Figure 4 is a perspective view showing a stirrer in the waste water input hopper of the wastewater treatment apparatus according to an embodiment of the present invention.

Figure 5 is a schematic diagram showing a waste water input hopper of the wastewater treatment apparatus according to an embodiment of the present invention.

Figure 6 is a schematic view showing a waste water input hopper of the wastewater treatment apparatus according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: sedimentation tank 11: sludge outlet

12: drip tray 13: check table

13a: handrail 13b: scaffold

13c: door 14: check ladder

15: reinforcement 16: reinforcement column

20: wastewater input hopper 21: stirrer

21a: rotating shaft 21b: stirring blade

22: brush 23: air nozzle

24: rotating motor 30: residue discharge outlet

32: floatation guide plate 40: discharge pump

42: discharge pipe 50: fresh water tank

51: open passage 52: check ladder

53: tunnel 54: spiral ladder

55: drain hole 60: communication channel

The present invention relates to a wastewater treatment apparatus, and more specifically, by combining the fresh water tanks integrally under the sedimentation tank, no space for installing a separate fresh water tank is needed, so that the sedimentation tank and the fresh water tank can be installed in a narrow space. It is advantageous to secure space according to their installation, and because they are integrated, they are easy to manage and repair. Also, the fresh water tank surrounds the sedimentation tank, which prevents the sludge at the bottom of the sedimentation tank from freezing in winter. The present invention relates to a wastewater treatment apparatus capable of safely performing wastewater treatment operations.

In general, wastewater treatment devices are required to be crushed, separated and sorted and washed in order to recycle various waste materials such as construction waste and industrial materials as aggregate or other materials, and thus, waste water, garbage and sludge are generated. The waste water generated in the process refers to a device that can utilize the fresh water obtained by sedimenting the sludge as washing water again.

 A typical conventional wastewater treatment system, for example, has at least one sedimentation tank which is arranged to allow the flow of waste water to settle for a sufficient time and then settle out, and the fresh water flowing out of the sedimentation tank below the sedimentation tank. The fresh water tank is formed in the shape of stairs on the side.

In the existing wastewater treatment apparatus, since the sedimentation tank and the fresh water tank are separated in a staircase shape, it becomes disadvantageous to secure a space such as the need for a large occupied space for the installation of the sedimentation tank and the fresh water tank, and it becomes impossible to install in a narrow space. In addition, because the sedimentation tank and the fresh water tank are exposed to the outside, the sedimentation tank and the fresh water tank are frozen in winter, and thus the waste water treatment operation is almost impossible in the winter season.

The purpose of the present invention was devised to solve the conventional problems as described above, by providing a sedimentation tank in a funnel shape (conical) and by providing a tubular fresh water tank holding the sedimentation tank as an integral type of separate fresh water tank It is not necessary to install the space, so it is possible to install the sedimentation tank and fresh water tank in a narrow space, and thus, it is advantageous to secure the space according to their installation, and they are integrally formed for easy management and repair work, and also the fresh water tank. Since it is a shape surrounding the sedimentation tank to prevent freezing of the inner sludge at the bottom of the sedimentation tank in winter, it is to provide a wastewater treatment apparatus that can safely perform the wastewater treatment work in winter.

Wastewater treatment apparatus according to the present invention for achieving the above object is a settling tank of the Sanggwanggyeop structure having an upper opening and a sludge discharge port is provided at the lower end and a drip tray at the upper edge; It is disposed at the top of the inner center of the sedimentation tank, the upper edge is isolated from the surface of the sedimentation tank, the upper and lower ends are open, and a stirrer having a plurality of agitating blades for pushing the wastewater up and down is provided at the inner center thereof, and the stirrer is provided at the top thereof. A waste water input hopper installed with a rotating motor; And a discharge pump connected to the sludge discharge port of the settling tank to discharge the sludge to the outside; A fresh water tank having an inner space while receiving a lower portion of the sedimentation tank to seal the upper outer side to be sealed and the lower edge thereof is sealed with the ground; It is characterized in that a communication channel for communicating the outer peripheral surface of the fresh water tank and the drip tray of the sedimentation tank so that the fresh water of the drip tray flows into the fresh water tank.

In the wastewater treatment apparatus according to the present invention, it is preferable that an open passage and a ladder are provided to the bottom along the open passage so that an operator can enter the predetermined portion of the upper edge of the fresh water tank.

In addition, in the wastewater treatment apparatus according to the present invention, a tunnel is provided in the lower part of the fresh water tank from the outside to the sludge discharge port of the sedimentation tank, which is connected to the sludge discharge port for discharging the sludge of the sedimentation tank in the tunnel. It is preferable that a pump is further provided.

And in the wastewater treatment apparatus according to the present invention, on the upper end of the wastewater input hopper and the stirrer, the floating guide plate staggered with respect to the centerline direction of the wastewater input hopper so as to push the wastewater residue floating on the water surface of the wastewater input hopper to the residue outlet side. And it is preferable to have a brush or the air nozzle for injecting air axial rotation while rubbing the bottom of the float guide plate.

In addition to the brush, it is preferable to further include an air nozzle for pushing the waste water dregs floating on the water surface of the waste water input hopper to the waste outlet side.

Hereinafter, on the basis of the accompanying drawings will be described in detail the wastewater treatment apparatus of the present invention.

1 to 5, the wastewater treatment apparatus according to an embodiment of the present invention is a sedimentation tank 10 into which the waste water is introduced, and the wastewater input hopper 20 disposed on the upper inner center of the sedimentation tank 10. And, the waste discharge inlet hopper 20, which is provided to be inclined downward from the upper edge of the waste discharge port 30, the discharge pump 40 for discharging the sludge precipitated in the lower portion of the sedimentation tank 10 and the sedimentation tank ( It is configured to include a fresh water tank (50) installed in the lower portion while holding 10) and a communication channel 60 for communicating the fresh water tank (50) and the drip tray (12) of the settling tank (10).

The sedimentation tank (10) is provided with a conical shape of the upper and lower strait, the sludge discharge port (11) including a valve that is opened upward and selectively opened and closed according to the operation of the discharge pump (40) at the lower end, The drip tray 12 for collecting the fresh water of the surface of the sedimentation tank 10 is provided in the outer peripheral surface. The settling tank 10 is provided in a state in which the upper outer peripheral surface lower portion is further supported by the cylindrical fresh water tank 50.

Here, the upper edge surrounded by the drip tray 12 of the settling tank 10 has a predetermined amount of water into the drip tray 12 before the fresh water of the surface of the settling tank 10 flows from the upper edge as sludge is precipitated in the settling tank 10. In order to flow down, so-called triangular notches are formed in which unevenness is repeated continuously.

In addition, the spiral ladder 54 is installed from the outer peripheral surface of the lower end of the fresh water tank 50 to the upper end of the settling tank 10, and the upper end of the settling tank 10 is connected to the upper end of the spiral ladder 54. A check stand 13 is provided across the diameter of the settling tank 10. Handrails 13a are formed on both sides of the check table 13, and a footrest 13b having a wire mesh structure is installed on a bottom surface thereof, and in particular, one end of the footrest 13b may enter the settling tank 10. A door 13c is provided to allow the user to

And, on the inner circumferential surface of the settling tank 10 through the door 13c of the check table 13, a check ladder 14 leading to the sludge discharge port 11, which is the lower end thereof, is provided.

Here, the check ladder 14 is a stepped (C) reinforcing bar of the shape of each scaffold in order to minimize the accumulation or sedimentation of waste water, sludge, etc. They are repeatedly spaced at regular intervals in the door (13c) It has a structure extending to the sludge discharge port 11 at the lower end.

In addition, the inner center of the settling tank 10 is provided with a plurality of reinforcing rods 15 whose upper end supports the upper end of the wastewater input hopper 20 and the lower end thereof is fixed to the inner circumferential surface of the settling tank 10.

Reference numeral 16 denotes a reinforcing column disposed between the outer circumferential surface of the settling tank 10 and the ground to support the outer circumferential surface of the settling tank 10.

The wastewater injection hopper 20 is disposed on the inner center top of the settling tank 10, the upper portion is a large diameter and the lower edge is provided to extend to the middle lower portion of the settling tank 10 with a small diameter, the upper edge An agitator 21 having a plurality of agitator blades 21b for pushing the wastewater up and down is provided in the center of the inner side of the sedimentation tank 10 and the lower end thereof is opened. It is provided to be driven by a rotary motor 24 connected to the upper end.

Here, the stirrer 21 is a rod-shaped rotary shaft 21a and a plurality of stirring blades 21b are mounted on the outer circumferential surface of the rotary shaft 21a, in particular, the stirring is provided at the top of the rotary shaft 21a The blade 21b has a wing angle for discharging the water upwards during rotation, and the remaining stirring blades 21b have a wing angle for discharging the water downward.

Wastewater residues which float to the surface of the wastewater introduced by the combination of the stirring blade 21b are quickly floated to the surface to be discharged to the residue outlet 30 and at the same time, the sludge is quickly sinked to the lower portion.

In addition, the wastewater input hopper 20 and the stirrer 21 are disposed on the top of the wastewater input hopper 20 so as to push the wastewater floating on the water surface of the wastewater input hopper 20 toward the residue outlet 30. The float guide plate 32 which is crossed with respect to, and the brush 22 which is axially rotated while rubbing the lower end of this float guide plate 32 are further provided.

Here, the edges of the wastewater input hopper 20 are formed by the brush 22 and the float guide plate 32 on the top of the wastewater input hopper 20 as the centrifugal force is generated in the water stream by the rotation of the brush 22. It will be apparent that after being pushed back to the final discharge outlet (30).

On the other hand, as another embodiment of the present invention, as shown in Figure 6, the wastewater residues floating on the water surface of the wastewater input hopper 20 instead of the brush 22 in the upper center portion of the wastewater input hopper 20 It may be provided with an air nozzle 23 using air to blow out to the outlet 30 side.

The air nozzle 23 is provided in the shape of a nozzle having a flat rectangular air discharge hole of the front end, which may be provided by one air nozzle or two or more air nozzles.

The waste discharge port 30 is a passage inclined downward so that the upper end is discharged to the ground through the settling tank 10 and the fresh water tank 50 in the upper edge of the waste water input hopper 20, the waste water input hopper 20 When the waste water floated on the water surface is pushed to the edge by the centrifugal force of the brush 22, it performs a function to discharge it to the outside.

Here, since the waste water is discharged together with some waste water, a predetermined waste water collecting container (not shown) having a container shape for collecting the waste water is also disposed on the ground spaced a certain distance from the lower end of the waste discharge port 30. It may be arranged.

The discharge pump 40 is connected to the sludge discharge port 11 at the bottom of the settling tank 10 to selectively discharge the sludge to the outside through the discharge pipe 42, which is the sludge discharge port only when the discharge pump 40 is driven. (11) is provided to open the valve just to drive the discharge pump 40 performs the function of sucking the sludge in the settling tank 10 to force the discharge to the outside.

The fresh water tank 50 has a cylindrical shape having an inner space sealed to surround the outer circumferential surface of the upper part of the settling tank 10 and sealed at the bottom edge thereof so as to prevent the fresh water flowing into the outside from leaking to the outside.

In addition, the fresh water tank 50 is provided with an open passage 51 opened at a predetermined portion of the upper edge so that the worker can enter the interior through the check stand 13 of the settling tank 10. The open passage 51 is provided with an inspection ladder 52 on the inner circumferential surface of the fresh water tank 50 from the open passage 51 to the bottom surface of the fresh water tank 50.

The check ladder 52 is also similar to the check ladder 14 of the sedimentation tank 10, so that each scaffold has a slender reinforcing bar shape in order to minimize the waste or sludge, etc., which are repeatedly spaced at regular intervals. It would be desirable to have a structure that is.

The lower end of the fresh water tank 50 is provided with a tunnel 53 from the outer peripheral surface to the sludge discharge port 11 at the bottom of the sedimentation tank 10, the tunnel 53, the discharge pump described above 40 is installed through the sludge outlet 11 at the bottom of the sedimentation tank 10, the tunnel 53 is freezing sludge outlet 11, the discharge pump 40, etc. at the bottom of the sedimentation tank 10 in winter. It is preferable to provide a door so as not to.

In addition, the outer circumferential surface of the fresh water tank 50 is provided with a spiral ladder 54 spirally installed from the ground to the upper end so as to ascend to the upper end check table 13 of the settling tank 10. The lower end of the fresh water tank 50 is provided with a discharge pipe 55 for removing the fresh water therein to the outside and to send it to other tanks.

The communication channel 60 communicates with the drip tray 12 of the sedimentation tank 10 to the upper end of the outer circumferential surface of the fresh water tank 50 so that the fresh water of the drip tray 12 flows into the fresh water tank 50. It is okay. The communication channel 60 may be selected and applied variously from one to a plurality depending on the rate of collecting fresh water to the drip tray 12 or the amount of wastewater input.

Wastewater treatment apparatus of the present invention according to such a configuration, by first driving the rotary motor 24, the wastewater to be treated in the state in which the rotating shaft 21a of the stirrer 21 to the upper portion of the wastewater input hopper 20 The wastewater treatment operation starts by adding. Waste water input in the above there is no scaffolding (13b) of the check base 13 to cross the top of the settling tank 10 and the waste water input hopper 20 to supply the waste water generated in the process of separating, sorting and washing It is made through a pipe (not shown) installed up to the opening of the upper end of the wastewater input hopper 20.

In this case, it is assumed that the sedimentation tank 10 is filled with wastewater or fresh water up to the upper end, and a predetermined flocculant is administered to the wastewater according to the hardness and turbidity of the wastewater so that the wastewater treatment proceeds smoothly.

Looking at the process of the waste water is continuously treated in the waste water input hopper 20 and the sedimentation tank 10, the waste water residues that are mixed with the waste water while the waste water is stirred by the rotation of the stirrer 21 is the waste water input hopper ( 20) The sludge that rises to the surface of the water and does not float is moved downward.

Here, the stirring blade 21b disposed at the upper end of the rotating shaft 21a discharges the water upwards, and the remaining stirring blades 21b positioned below the bottom push the current downwards, thereby floating the floating water in the wastewater. Phosphorous waste dregs (paper, vinyl or styrofoam) and non-floating sludges (concrete powder, stone powder, soil or fine iron, etc.) are quickly moved up and down.

As described above, the wastewater is moved to the lower portion of the wastewater input hopper 20 at a slightly faster speed by the stirring blade 21b of the rotary shaft 21a, and then flows into the settling tank 10 while passing through the bottom of the wastewater input hopper 20. Ascendingly slowed down to rise. As such, the flow rate of the wastewater is drastically slowed, which is precipitated by the specific gravity of the sludge itself, and in addition, the sludge in the wastewater is rapidly aggregated more effectively by the flocculant and the precipitation starts to occur. Therefore, the sludge sinks to the bottom of the settling tank 10 and is settled so that the top of the settling tank 10 becomes clean fresh water.

The centrifugal force of the brush 22 in the state in which the waste water residue, which is a floating material, is suspended by the stirring blade 21b installed at the top of the stirrer 21 and the floating waste water residue is suspended. And guided by the float guide plate 32 is pushed to the outer edge is discharged to the outside through the dregs discharge port (30).

Here, instead of the brush 22 that uses the centrifugal force, the air nozzle 23 that blows to the edge side using air may be used.

As described above, while the wastewater introduced into the wastewater input hopper 20 is moved from the lower part of the sedimentation tank 10 to the upper part through this, the sludge aggregates and sinks to the lower end of the sedimentation tank 10. Becomes clean fresh water, and the amount of wastewater flowing into the wastewater input hopper 20 flows through the top of the sedimentation tank 10 to the drip tray 12 and the fresh water tank passes through the communication channel 60 and the fresh water tank ( 50).

When the sludge settled at the bottom of the sedimentation tank 10 while the wastewater treatment is performed, the discharge pump 40 connected to the sludge outlet 11 of the sedimentation tank 10 in the tunnel 53 at the bottom of the fresh water tank 50 is driven. The valve is opened and sent to the sludge agitating tank through the discharge pipe 42 to be treated, and the fresh water in the fresh water tank 50 is supplied through the drain hole 55 to be recycled into the wash water.

On the other hand, when the wastewater treatment is performed for a long time and the maintenance of the settling tank 10 and the fresh water tank 50 is required, the worker in the state emptying the inside of the settling tank 10 and the fresh water tank 50 without performing the waste water treatment Take the spiral ladder 54 installed on the outer circumferential surface of the fresh water tank 50 and go up to the check table 13 provided at the upper end of the settling tank 10 and through these check ladders 14 and 52, the settling tank 10 and fresh water. Entering the inside of the tank 50, it is possible to perform the inspection, such as internal cleaning and repair. And, through the tunnel 53 in the lower fresh water tank 50, it is possible to perform the inspection and repair work of the sludge discharge port 11 and the discharge pump 40 of the settling tank 10.

As described above, the wastewater treatment apparatus of the present invention does not require a space for installing a separate fresh water tank by providing a sedimentation tank in a funnel shape (conical shape) and providing a tubular fresh water tank integrally holding the sedimentation tank. Sedimentation tanks and fresh water tanks can be installed in a narrow space, which is advantageous to secure the space according to their installation, and they are integrally formed for easy management and repair work, and the fresh water tanks surround the sedimentation tanks. Since the internal sludge at the bottom of the sedimentation tank can be prevented from freezing, it is possible to safely carry out wastewater treatment even in winter.

Claims (7)

A sedimentation tank 10 having an upper and lower narrow structure having an upper opening and a sludge discharge port 11 provided at a lower end thereof, and having a drip tray 12 at an upper edge thereof; The upper edge is disposed at the inner center upper end of the settling tank 10, the upper edge is isolated from the water surface of the settling tank 10, the upper and lower ends are opened, and has a plurality of stirring blades (21b) to push the waste water up and down in the center of the inner A stirrer 21 is provided and the stirrer 21 includes a waste water input hopper 20 having a rotary motor 24 connected to the top thereof; A discharge pump 40 connected to the sludge discharge port 11 of the settling tank 10 to discharge the sludge to the outside; A fresh water tank (50) having an inner space while receiving a lower portion of the sedimentation tank (10) while sealingly sealing the upper outer side and having a lower edge sealed with the ground; The outer peripheral surface of the fresh water tank (50) and the drip tray 12 of the settling tank 10 is characterized in that it is provided with a communication channel 60 to allow the fresh water of the drip tray 12 to enter the fresh water tank (50). Wastewater treatment device. The method of claim 1, The wastewater input hopper 20 is a wastewater treatment apparatus, characterized in that the upper portion is provided with a large diameter and the lower portion is extended to the middle lower portion of the settling tank 10 with a small diameter. The method according to claim 1 or 2, The upper end of the waste water input hopper 20 to the ground through the settling tank 10 and the fresh water tank 50 in the upper edge of the waste water input hopper 20 to discharge the waste water residues floating on the inner surface of the water to the outside. Waste water treatment apparatus, characterized in that provided with a discharge outlet (30) which is a passage inclined downward to be discharged. The method of claim 1, It is further provided with an open passage 51 opened to allow a worker to enter the predetermined portion of the upper edge of the fresh water tank 50 and a ladder 52 extending along the open passage 51 to the bottom surface. Wastewater treatment device characterized in that. The method according to claim 1 or 2, The sludge discharge port 11 at the bottom of the sedimentation tank 10 at the center of the outer surface of the fresh water tank 50 in which the discharge pump 40 for discharging the sludge of the sedimentation tank 10 is installed at the lower end of the fresh water tank 50. Waste water treatment apparatus, characterized in that the tunnel 53 is provided to. The method of claim 3, The float guide plate which is staggered with respect to the centerline direction of the wastewater inlet hopper to push the wastewater residue floating on the water surface of the wastewater inlet hopper 20 toward the residue outlet 30 on the top of the agitator 21 of the wastewater inlet hopper 20. And, waste water treatment apparatus characterized in that it is further provided with a brush 22 is axially rotated while rubbing the bottom of the float guide plate. The method of claim 3, Waste water treatment, characterized in that the upper end of the waste water input hopper 20 is further provided with an air nozzle 23 for blowing out the waste water floating on the water surface of the waste water input hopper 20 toward the waste discharge port 30 side. Device.

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