KR100926078B1 - Apparatus for purifying waste water - Google Patents

Abstract

PURPOSE: A sewage purification device for reducing energy is provided to minimize energy consumption, and to improve washing efficiency of a filter member and purification efficiency of sewage. CONSTITUTION: A sewage purification device includes a sewage treatment tank(10), a plurality of filter members(20), a discharge pipe(30), and a washing unit(40). A filter part(21) is equipped on both sides of the filter member, and a purification water flow path(26) is formed between both filter parts. The filter part purifies the sewage, and formed to a square shape. The washing unit includes a suction pipe(41), a plurality of suction members(42), a drive motor(43), and a suction pump(44). The suction member is installed at the suction pipe. The drive motor rotates the suction pipe connected with the suction pipe.

Description

Wastewater Purification System {APPARATUS FOR PURIFYING WASTE WATER}

The present invention relates to a sewage purification apparatus, and more particularly, to an energy-saving sewage purification apparatus that can filter and purify sewage through a filter member and wash the filter member by itself.

Household sewage discharged from homes and wastewater discharged from factories contain various kinds of suspended solids and sewage. The sewage purification device is a device for filtering and filtering various suspended matters and dirt from such waste water.

Korean Patent Registration No. 10-522906 discloses a wastewater purification apparatus for purifying wastewater in such a manner that wastewater passes through a rotating disk-shaped filter member. As shown in FIG. 1, the filthy water purification apparatus is provided with a central drum 1 into which filthy water flows, and a plurality of disc filter elements installed around the drum 1 for filtration of filthy water and rotated by driving of a motor. (2) and a washing device (3) provided above the filter member (2) so as to wash the filter member (2) by spraying high-pressure washing water on the outer surface of the filter member (2). In addition, it is provided with a trough (4, trough) for receiving the dirt flowing down from the inside of the filter member (2) during the cleaning to discharge to the outside.

The sewage purification apparatus is introduced into the inside of the filter member 2 in which the sewage supplied to the drum 1 in the center rotates, and is filtered while being discharged to the outside through the filter member 2. The filtered suspended matter or dirt accumulates inside the filter member 2, and the purified water passing through the filter member 2 is discharged to the outside through the discharge port 5a of the treatment tank 5. When the washing is performed, high-pressure washing water is sprayed to the outer surface of the filter member 2 while the filter member 2 is rotated, so that suspended matter or dirt inside the filter member 2 falls into the tub 4 and is discharged.

However, since the sewage purification apparatus is introduced into the inside of the filter member 2 rotating through the drum 1 and discharged to the outside, suspended matter or dirt is attached or accumulated inside the filter member 2. Therefore, despite the cleaning of the filter member 2, there is a problem that as the use becomes longer, the floating particles floating in the filter member 2 increase (as the concentration of the internal suspended solids increases), thereby reducing the amount of purified water of the sewage. In particular, this apparatus has a problem that the purification efficiency is low because purification of the sewage is made only in the lower region of the filter member (2).

In addition, since the filthy water purification apparatus cleans the dirt attached to the inside of the filter member 2 by washing the sprayed water from the outside of the filter member 2 when the filter member 2 is washed, the washing efficiency is not only low, but also the washing water requirements are required. There were many drawbacks. In addition, it is difficult to partially replace the filter member 2, so that it is difficult to maintain, and when the filter member 2 is replaced, the operation has to be stopped.

In addition, such a wastewater purification device has a big problem of energy loss because the filter member 2 must be rotated during the purification process and the filter member 2 must be rotated while the filter member 2 is rotated while the high pressure pump is operated for spraying the washing water.

The present invention is to solve such problems, it is an object of the present invention to provide a sewage purification apparatus to increase the purification efficiency of the sewage and the cleaning effect of the filter member.

Another object of the present invention is to provide a wastewater purification device which facilitates maintenance of the device such as replacement of the filter member.

Still another object of the present invention is to provide a wastewater purification apparatus which can minimize the consumption of energy.

The sewage purification apparatus according to the present invention for achieving this object is installed in the sewage treatment tank containing the sewage, and in the immersion state in the sewage treatment tank and each water on both sides so that the sewage of the sewage treatment tank can be purified while flowing into the inside thereof. At least one filter member having a filtration section through which the purified water flows, and a discharge pipe connected to the filter member so as to communicate with the purified water passage for discharging the purified water, and both sides of the filter member. And a washing apparatus for washing the filter member in a manner of sucking and discharging dirt attached to the filter part from the outer side of the filter part together with water.

The filter member is installed so that the plurality of filter members are opposed to each other in a form facing each other, the discharge pipe is characterized in that the detachable connection with the plurality of filter members.

The washing apparatus is radially extended from a suction pipe rotatably installed in the sewage treatment tank so as to penetrate through a central portion of the filter member provided with the filtering part on both sides, and the suction pipe at a position proximate to the filtering part of the filter member. A suction member having a flow path communicating with the inside and a suction port formed at a side facing the filter part, a driving motor for rotating the suction pipe, and a suction pump connected to the suction pipe to suck water and dirt by applying suction to the suction pipe It includes.

The filter member includes a tube entry portion cut from the center portion through which the suction tube penetrates to its edge so that the filter member can be replaced without separating the suction tube.

The sewage purification apparatus further includes a water level sensor for controlling the water level of the sewage treatment tank, wherein the water level of the sewage treatment tank is set higher than the height of the discharge pipe.

The filter portion of the filter member includes a filtration member for filtering dirt, an inner support portion for supporting an inner surface side of the filtration member, and an outer support portion for supporting an outer surface side of the filtration member.

The filter member includes a discharge guide provided at an upper portion thereof to guide the water of the purified water flow path toward the discharge pipe, and a connection device provided at the discharge guide to connect the discharge pipe.

The sewage purification apparatus according to the present invention has the effect that the filter members are completely submerged in the sewage treatment tank, and almost all regions of each filter member are used to purify the sewage, thereby improving the purification efficiency of the sewage. In addition, there is an advantage that the size of the device can be miniaturized by the high efficiency of sewage purification.

In addition, in the wastewater purification apparatus according to the present invention, since the water of the sewage treatment tank is purified while flowing from the outside of each filter member to the inside, dirt or suspended matter filtered by each filter member is attached to the outside of each filter member. Since the suction member outside the filter member sucks and discharges it with a strong suction force, there is an effect of increasing the washing effect of the filter member. This is because washing with a strong suction force may increase the washing effect than when spraying with a high pressure pump as in the prior art.

In addition, the sewage purification apparatus according to the present invention can separate and replace each filter member individually, and there is no need to separate the suction pipe during the replacement of the filter member, and the filter member can be replaced while performing the purification operation. There is an advantage that the maintenance of the device is easy.

In addition, the sewage purification apparatus according to the present invention is because the height of the discharge pipe is lower than the water level of the sewage treatment tank can perform the purification of the sewage as the water flows naturally without inputting additional energy, and also a washing device for cleaning the filter member Since only a short time when the cleaning operation is performed there is an effect that can minimize the consumption of energy.

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

The sewage purification apparatus according to the present invention, as shown in Figure 2, the sewage treatment tank 10 containing the sewage, such as domestic sewage or factory wastewater, and filter members 20 installed in the immersion state in the sewage treatment tank 10 ), A discharge pipe 30 connected to the filter members 20 for discharging the purified water, and a washing device 40 for removing dirt or suspended matter attached to the filter member 20.

The sewage treatment tank 10 is in the form of a square tank with an open top, and a sewage inflow pipe 11 through which sewage is introduced is connected. The sewage treatment tank 10 may be any one capable of accommodating sewage for purification treatment, and the form thereof is not necessarily limited to the square. The sewage inflow pipe 11 may also be installed in a manner of being connected to the sewage treatment tank 10 or may be installed in a manner of entering through the upper opening of the sewage treatment tank 10. The upper part of the sewage treatment tank 10 may also be opened and closed by a cover.

As shown in FIGS. 3 and 4, the filter members 20 are provided in the form of a square panel, and water is passed through both sides so that the sewage of the sewage treatment tank 10 can be purified while flowing into the interior thereof. The filter unit 21 is provided, and a purified water flow path 26 through which purified water flows between both filter units 21. The purified water flow passage 26 is formed by spaced spaces between the two side filtering portions 21. These filter members 20 are provided in a form in which the filtration units 21 on both sides thereof are spaced apart from each other in the sewage treatment tank 10 in the lateral direction.

As shown in FIG. 4, the filtration unit 21 on both sides of the filter member 20 has a filtration member 22 made of a nonwoven fabric, a porous fiber, or the like, and a grill-shaped inner side that supports the inner surface side of the filtration member 22. The support 23 and the outer support 24 in the form of a metal mesh or grill to support the outer surface side of the filtering member 22. This is to allow the sewage inside the sewage treatment tank 10 to be purified while flowing through both side filtering members 22 toward the purified water flow passage 26, and the filtering members 22 have inner and outer support portions 23 and 24. It is supported by) to maintain its shape.

Discharge guide portion 27 for guiding the water in the purified water flow path 26 toward the discharge pipe 30 at the upper portion of each filter member 20, and discharged to connect each filter member 20 to the discharge pipe 30. The connecting device 28 provided in the guide portion 27 is provided. Purified water in the purified water flow passage 26 is to be discharged to the discharge pipe 30 through the discharge guide portion 27 of the upper side. The connection device 28 may be made of a conventional pipe connection coupling or connection socket or the like so that each filter member 20 can be separately separated and exchanged.

As shown in FIG. 2, the discharge pipe 30 is connected to the plurality of filter members 20 to guide the discharge of purified water while passing through each filter member 20. In addition, the discharge pipe 30 is installed in the immersion state in the sewage contained in the sewage treatment tank 10 so that the purified water can be naturally discharged. That is, the water level of the sewage treatment tank 10 is set higher than the height of the discharge pipe 30 so that water flows naturally toward the discharge pipe 30 by the head difference. This is to ensure that the water of the sewage treatment tank 10 is purified by flowing into each filter member 20 and then naturally discharged through the discharge pipe 30 so that energy is not required to perform the purification treatment. To this end, a water level sensor 13 for controlling the water level may be installed on the top of the sewage treatment tank (10).

Figure 5 shows another embodiment of the discharge passage in which the purified water is discharged. This shows an example in which the discharge pipes 30a extending from the filter member 20 to the outside of the sewage treatment tank 10 are discharged through the drainage passage 60 such as an open sewage system. Each discharge pipe 30a may be provided with valves 35 for selectively opening and closing the discharge pipe 30a.

Washing apparatus 40 for washing the filter member 20 is installed in the transverse direction so as to pass through the center of each filter member 20, as shown in Figures 2 to 4, both ends of the sewage treatment tank (10) A suction pipe 41 rotatably supported on the suction pipe, suction members 42 provided on the suction pipe 41 so as to be close to both side filter portions 21 of each filter member 20, and a drive to rotate the suction pipe 41. And a suction pump 44 connected to the suction pipe 41 to apply the suction force to the motor 43 and the suction pipe 41 to suck and discharge water and dirt.

3 and 4, the suction members 42 are elongated in the radial direction of the suction pipe from the suction pipe 41 and have a flow passage 42a communicating with the inside of the suction pipe 41. In addition, the suction ports 42b formed on the side facing the filtration unit 21 of each filter member 20 for suction of water and dirt. Suction members 42 disposed on both sides of each filter member 20 are arranged to be opposite to each other for smooth rotation.

As shown in FIG. 2, the driving motor 43 may be formed of a conventional reduction gear motor having a deceleration function. The driving motor 43 may be installed outside the sewage treatment tank 10 and may be provided with a suction pipe 41 by a belt and a pulley. Can be connected. As shown in FIG. 3, the driving motor 43 rotates the suction pipe 41 when cleaning the respective filter members 20, so that the suction members 42 on both sides of each filter member 20 are suction pipes. Rotate with (41).

The cleaning device 40 washes dirt or suspended matter attached to the outside of each filter member 20 by driving the driving motor 43 while the suction pump 44 is operated to rotate the suction members 42. do. That is, when the suction pump 44 operates, as shown in FIG. 4, a strong suction force acts on the suction port 42b of each suction member 42 provided to be adjacent to the filtration unit 21 of each filter member 20. Therefore, the dirt attached to the outer surface of the filtration unit 21 of the filter member 20 is sucked into the suction member 42 together with the water. At the same time, since each suction member 42 rotates together with the suction pipe 41 as shown in FIG. 3, it is possible to wash a large area (the area reached by the suction member by rotation) of both sides of the filter member 20. .

Water and dirt sucked into each suction member 42 are discharged to the outside through the suction pipe 41 and the suction pump 44. At this time, the water and dirt discharged through the suction pipe 41 is collected in a separate treatment tank (not shown) provided upstream of the sewage treatment tank 10 and then introduced into the sewage treatment tank 10 again or through a separate process. Can be processed.

When the dirt or foreign matter attached to the outside of the filter member 20 is washed in a suction manner, a locally strong suction force acts on the outer surface of the filter member 20 where the suction member 42 is located to suck the dirt or foreign substance. As the position of the suction member 42 is changed by rotation, the area of the filtration unit 21 is washed, so that the washing effect of the filter member 20 can be improved as compared with the related art. In other words, washing with a strong suction force than when spraying by washing at a high pressure as in the prior art also has a high cleaning effect and advantageous in energy efficiency. This is because the influence of suction force is usually much greater than the blowing force acting on the same area.

This washing operation can be performed by the user as needed or can be automatically executed periodically by the control means of the device. For example, it can be set in such a way that the cleaning operation is performed for 1 minute every hour during the purification process.

As shown in FIG. 3, each filter member 20 includes a pipe inlet 29 provided in a shape cut from the center portion through which the suction pipe 41 penetrates to its edge. This makes it possible to easily replace each ejector member 20 individually without removing the suction pipe 41. In this embodiment, the pipe inlet portion 29 of each filter member 20 from the center of each filter member 20 so that the filter member 20 can be removed or mounted through the upper opening of the sewage treatment tank 10. It is formed long to the bottom.

Next, a wastewater purification operation of such a wastewater purification apparatus will be described.

As shown in FIG. 2, the sewage flowing into the sewage treatment tank 10 through the sewage inflow pipe 11 is filled up to the set water level of the sewage treatment tank 10 in which the water level sensor 13 is installed. The sewage in the sewage treatment tank 10 is purified as it flows into the inside of each filter member 20 through both side filter portions 21 of each filter member 20, and the purified water is purified from each filter member 20. It is discharged through the discharge pipe 30 through the purified water flow path 26 and the discharge guide 27.

Since the discharge pipe 30 is lower than the set water level of the sewage treatment tank 10, the water introduced into the sewage treatment tank 10 naturally passes through each filter member 20 and is purified while flowing toward the discharge pipe 30. As described above, the present invention can reduce the energy because the sewage can be purified by the natural flow of water. In addition, since the filter members 20 are completely submerged in the sewage treatment tank 10 to purify water using almost the entire area of each filter member 20, the purification efficiency may be increased. Therefore, the device can be miniaturized as compared with a conventional device having a similar processing capacity.

The cleaning of the filter members 20 can be performed without draining the water during the purification. At this time, the suction pump 44 is operated while the suction pipe 41 is rotated through the driving motor 43 so that the dirt attached to both outer surfaces of each filter member 20 is sucked into each suction member 42 together with water. do. The suction port 42b of each suction member 42 is close to the outer surface of both filter portions 21 of each filter member 20 and a strong suction force acts through the suction port 42b, so that both filter portions of each filter member 20 are provided. (21) The dirt attached to the outer surface is sucked into the suction member 42 together with the water. The sucked dirt is discharged through the suction pipe 41 and the suction pump 44.

Since the cleaning operation is performed periodically, approximately once every hour, each filter member 20 can be maintained in a good state for purification. In addition, since the washing operation is performed while the purifying operation is performed and the time is short, the washing operation has little effect on the purifying process. In addition, since the driving motor 43 and the suction pump 44 operate only briefly when performing the washing operation, the consumption of energy due to the washing operation is not very large. That is, the energy consumption is significantly less than that of the conventional sewage purification apparatus which has to spray the washing water with the high pressure pump while continuously rotating the filter members 20.

When replacing the filter member 20 by long term use, as shown in FIG. 3, it can separate and replace individually as needed. In particular, each filter member 20 is provided with a pipe entry portion 29 can be easily replaced without the need to remove the suction pipe (41) or the like. As such, the present invention can be implemented while performing a purification operation because each filter member 20 can be easily replaced individually. It is not necessary to separate other parts of the device or to drain the water for the replacement of the filter member 20. Therefore, maintenance of the device is easy.

1 is a perspective view of a conventional sewage purification apparatus.

2 is a cross-sectional view showing the configuration of the wastewater purification apparatus according to the present invention.

Figure 3 is a perspective view showing the configuration of the filter member and the cleaning device of the sewage purification apparatus according to the present invention.

Figure 4 is a cross-sectional view showing the configuration of the filter member and the suction member of the sewage purification apparatus according to the present invention.

5 is a perspective view showing another embodiment of the filthy water purification apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: sewage treatment tank, 13: water level sensor,

20: filter element, 21: filtration unit,

26: purified water flow path, 27: discharge guide,

29: pipe entry, 30: discharge pipe,

40: washing device, 41: suction line,

42: suction member, 43: drive motor,

44: suction pump.

Claims (7)

Sewage treatment tank containing filthy water, At least one installed in the sewage treatment tank in the submerged state and provided with a filtration unit through each side of the water to be purified as the sewage of the sewage treatment tank is introduced into the inside of the sewage treatment tank, and the purified water flow path through which the purified water flows. Filter element, A discharge pipe connected to the filter member so as to communicate with the purified water flow path for discharge of purified water; And a washing apparatus for washing the filter member in a manner of sucking and discharging the dirt attached to the filter part together with water from the outer side of the filter part on both sides of the filter member. The washing apparatus includes a suction pipe rotatably installed in the sewage treatment tank so as to penetrate through the center of the filter member, a flow path extending radially from the suction pipe at a position proximate to the filtration part of the filter member, and communicating with an inside of the suction pipe; And a suction member having a suction port formed on the side facing the filtration unit, a driving motor for rotating the suction tube, and a suction pump connected to the suction tube to give suction force to the suction tube to suck water and dirt. Sewage purifier The method of claim 1, The filter member is installed in a plurality of spaced apart from each other in a form facing the filtration unit, the discharge pipe is a sewage purification device, characterized in that detachably connected to the plurality of filter members. delete The method according to claim 1 or 2, The filter member is a sewage purification device, characterized in that it comprises a pipe inlet formed in the form cut from the center portion through which the suction pipe penetrates so that the exchange without separation of the suction pipe. The method of claim 1, The sewage purification apparatus further includes a water level sensor for controlling the water level of the sewage treatment tank. The sewage treatment apparatus, characterized in that the water level of the sewage treatment tank is set higher than the height of the discharge pipe. The method of claim 1, The filtration unit of the filter member comprises a filtration member for filtering dirt, an inner support for supporting an inner surface side of the filtration member, and an outer support for supporting an outer surface side of the filtration member. The method of claim 6, The filter member includes a discharge guide provided at an upper portion thereof to guide the water of the purified water flow path toward the discharge pipe, and a connection device provided at the discharge guide to connect the discharge pipe. .

Images