KR20060005533A - A disk drum filter for disposing a sludge or sewage - Google Patents

Abstract

The present invention relates to a disc drum filter for treating waste water, the main body having an inlet for introducing waste water and an outlet for discharging filtered water, and a hollow cylinder cylindrical center drum rotated in one direction about a drive shaft by a driving motor. A filter membrane for filtering the foreign substances contained therein through the wastewater discharged through the slit hole formed in the outer surface of the center drum and a plurality of nozzles for spraying backwash water to the outer surface of the filter membrane to filter the wastewater An apparatus, comprising: a plurality of filter bases formed in at least one through hole overlapping the slit hole in an arc-shaped cross-section, and fixed by a plurality of fixing brackets assembled to the center drum, and an upper surface of the filter base; The lower end opened in the fitting is assembled, and the filter membrane is placed in the openings at the front and rear sides. It is made up of a plurality of filter housing which is assembled by each filter flange portion provided on an outer surface of the center drum; And a nozzle arm swing operation unit for swinging the nozzle arm having the nozzle so as to spray backwash water to the entire outer surface of the filter membrane.

Disc drum filter, center drum, filter membrane, center drum, filter base, backwash, level control

Description

Disc drum filter for wastewater treatment {A DISK DRUM FILTER FOR DISPOSING A SLUDGE OR SEWAGE}

1 is a schematic diagram showing a general wastewater treatment facility.

2 is a perspective view showing a disc drum filter for wastewater treatment according to the prior art.

3 is a plan view of a disk drum filter for wastewater treatment according to the present invention.

4 is a front view of the disc drum filter for wastewater treatment according to the present invention.

5 is a longitudinal sectional view of the disc drum filter for wastewater treatment according to the present invention.

Figure 6 (a) (b) is a side view showing the front and rear of the disk drum filter for wastewater treatment according to the present invention.

Figure 7 is a detailed view of the filter portion provided in the disk drum filter for wastewater treatment according to the present invention.

8 (a) (b) (c) (d) are a plan view, a rear view and a sectional view of the filter base provided in the wastewater treatment disk drum filter according to the present invention.

Figure 9 (a) (b) is an exploded perspective view and assembly view of the filter unit provided in the wastewater treatment disk drum filter according to the present invention.

10 is a cross-sectional view of the filter unit provided in the wastewater treatment disk drum filter.

11 is a block diagram of a nozzle arm swing operation unit provided in the disk drum filter for wastewater treatment according to the present invention.

Figure 12 (a) (b) is an assembly and cross-sectional view of the water level control unit provided in the disk drum filter for wastewater treatment according to the present invention.

Explanation of symbols on the main parts of the drawings

110: main body 111, 112: inlet, outlet

115: drive shaft 119: vertical bulkhead

120: center drum 130: filter unit

131: filter membrane 132: filter base

133,136: upper and lower thread holes 134a, 134b: upper and lower sealing grooves

135: filter case 137: fixing frame

138a, 138b: upper and lower sealing member 140: back detail

141: nozzle 142: nozzle arm

143: main station customs 150: nozzle arm swing operation part

151: eccentric cam 152: circular cam

153,155: upper and lower link 170: water level control

171: guide frame 172: gate

173 screw 174 support bar

The present invention relates to a disk drum filter for treating wastewater, and more particularly, the replacement of the filter membrane for filtering foreign matter contained in the wastewater is easy, the dropping of the foreign matter filtered on the filter membrane is easy, and the water level of the treated water. Disclosed is a disk drum filter for wastewater treatment, which is greatly improved to be able to adjust and shorten treatment time.

In general, river, lake or soil pollution leads to serious ecosystem pollution such as seawater and wells, which are polluted from wastewater discharged from homes and factories, including sewage discharged water, into rivers and seas. In addition, aquatic organisms are killed by the pollutants introduced and the destruction of algae and fish ecosystems is caused by the accumulation of suspended substances.

Therefore, the pollutants contained in the wastewater discharged to the outside must be treated. Such techniques include sedimentation, adsorption, ion exchange, neutralization treatment, flocculation, flotation, reverse osmosis, etc. This removed treated water was reused.

1 is a schematic view showing a general wastewater treatment facility, as shown, which is a sedimentation tank (2) in which wastewater is introduced and stored from the outside, a reaction tank (3) for condensing contaminants by reacting pollutants and chemicals and treating them. A driving source of the motor 2a, 3a, 4a provided in the sedimentation tank 2, the reaction tank 3, and the treatment tank 4, which is composed of a treatment tank 4 for treating water and sludge separately from each other. By rotating the stirrer, the contaminated pollutant is dehydrated and discarded, and the supernatant is circulated to recycle.

However, such a conventional wastewater treatment facility has to increase the internal volume of the sedimentation tank 2, the reaction tank 3 and the treatment tank 4 in proportion to the inflow amount of the wastewater to be treated, and occupies occupied during installation. Due to the large area, the installation site must be secured in a wide area, and the treatment efficiency is low due to the long precipitation, reaction and treatment time for treating the waste water with recyclable treated water. With this increase, there was a problem that wastewater treatment costs are excessively consumed.

FIG. 2 is a perspective view illustrating a disc drum filter for wastewater treatment according to the prior art, and as illustrated, a body 10 having an inlet 11 through which wastewater flows in and a discharge hole 12 through which treated water is discharged. And a hollow cylinder-shaped center drum 20 which is rotated in one direction by the rotation driving force of a driving motor (not shown), one end of which waste water is introduced into the inside, and the other end of which is sealed, and the center drum ( A plurality of filter parts 30 mounted on the outer surface of the center drum 20 and filtered through the slit hole 22 of the 20 through the slit hole 22, the drop is removed from the filter unit 30 The collection cylinder 45 is configured inside the center drum 20 to collect and discharge foreign substances.

In FIG. 2, reference numeral 13 denotes a cover covering the upper portion of the main body, and 25 denotes a guide roll inscribed on an inner circumferential surface to guide rotation of the center drum.

However, the filter unit 30 is provided with a plurality of filter membranes 31 on the front and rear, integrally with the outer surface of the center drum 20 in accordance with the slit hole 22 of the center drum 20. Since it is composed of a ring-shaped fixed frame 32 to be assembled and a blocking film 33 for blocking the outer surface thereof, only one of the plurality of filter films 31 provided in the filter unit 30 is damaged. Even if the worker wants to replace it, the operator had to disassemble the entire heavy frame 32 from the center drum 20, separate it to the outside of the main body 10, and then replace the damaged filter membrane 31 with a new one.

For this reason, the worker's work load is large to replace the filter membrane 31, the replacement work takes too much time, and there is a concern that the other filter membrane 31 having a good state during the replacement operation may be damaged.

In addition, when the foreign matter adhering to the filter membrane 31 is backwashed with backwashing water and dropped into the collecting cylinder 45 in the center drum 20, the position at which the backwashing water is injected is determined, Since only a specific part is backwashed, it acted as a factor to lower the filtration efficiency of the filter membrane 31.

Therefore, the present invention has been proposed in order to solve the conventional problems as described above, the object of which is to replace the filter membrane to be replaced individually quickly and easily to improve the work burden and work productivity of the operator, attached to the filter membrane The present invention aims to provide a disk drum filter for wastewater treatment that can evenly remove the foreign substances over the entire surface to increase the filter efficiency.

As a technical configuration for achieving the above object, the present invention,

The main body has an inlet through which waste water flows in and a discharge port through which the filtered water is discharged, a hollow cylinder-type center drum rotated in one direction about a drive shaft by a drive motor, and discharged through a slit hole formed on an outer surface of the center drum. In the filter device for passing the waste water to filter the foreign matter contained therein and a plurality of nozzles for spraying backwash water to the outer surface of the filter membrane, the filter device for treating waste water

A plurality of filter bases formed in at least one through hole overlapping the slit hole in an arc-shaped cross-section, and fixed by a plurality of fixing brackets assembled to the center drum, and a lower portion open to an upper surface of the filter base. A stage is fitted and assembled, the filter membrane is formed in the opening of the front, rear, and a plurality of filter cases which are assembled by a fixed frame, respectively, provided in the outer surface of the center drum;

It provides a disk drum filter for wastewater treatment, characterized in that it comprises a nozzle arm swing operation unit for swinging the nozzle arm having the nozzle so as to spray the reverse washing water to the outer surface of the filter membrane.

Hereinafter, the present invention will be described in more detail.

3 is a plan view of a disk drum filter for wastewater treatment according to the present invention, FIG. 4 is a front view of a disk drum filter for wastewater treatment according to the present invention, and FIG. 5 is a longitudinal section of a disk drum filter for wastewater treatment according to the present invention. 6 is a side view of the disc drum filter for wastewater treatment according to the present invention.

3 to 6 of the present invention, as shown in Figures 3 to 6, through the waste water containing the foreign matter of various forms to replace the filter membrane for separating the reused treated water and foreign matter easily, quickly It can be performed to improve the filtration performance by increasing the efficiency of removing foreign matter attached to the filter membrane, which is the main body 110, the center drum 120, the filter unit 130, the backwashing unit 140 and The nozzle arm swing operation unit 150 and the like.

That is, the main body 110 is an accommodating member having an internal space of a predetermined size so that the center drum 120 and the filter unit 130 mounted on the outer circumferential surface thereof are accommodated without interference, and in front of the main drum and the factory The waste water generated therein is provided with an inlet 111 through which the inside is introduced, and the opposite side forms a through hole 112 through which the treated water separated from the pollutant is discharged outside.

The main body 110 penetrates through the inlet 111 connected to the inlet pipe (not shown) for guiding the waste water inside, and discharges only the treated water from which the pollutant is filtered to a post process (not shown). While forming a discharge port (12) connected in communication with the rear, it is provided in the form of a tank having a cover 113 on the top.

One side of the main body 110 is provided with a bearing member 1116 for rotatably supporting the drive shaft 115 is driven by a drive motor not shown, the rotary shaft 115 of the center drum 110 It is connected to one side.                     

In addition, the center drum 120 is a hollow cylindrical member rotatably assembled in the inner space of the main body 110, and one side to which one end of the rotating shaft 115 is connected is sealed to prevent waste water from being discharged without filtration. It is formed, the other side of the opposite side is formed to be open so that the waste water supplied through the inlet 111 of the main body 110 into the inner space, the inner circumferential surface is formed by a plurality of guide rolls 125 circumscribed thereto Supported.

The outer surface of the center drum 120 is formed through the plurality of slit holes 122 in the circumferential direction to discharge the waste water introduced therein, the slit holes 122 are at least one with a predetermined interval in the drum length direction Equipped above, a plurality of high information screws that are fixed to the fixing bracket to be described later are formed integrally protruding from the left and right sides of the slit hole (122).

Figure 7 is a detailed view of the filter portion provided in the wastewater treatment disk drum filter according to the present invention, Figure 8 (a) (b) (c) (d) is provided in the wastewater treatment disk drum filter according to the present invention 9 is a plan view, a rear view, and a cross-sectional view of the filter base, and FIGS. 9 (a) and 9 (b) are exploded perspective views and assembling views of the filter unit provided in the wastewater treatment disc drum filter, and FIG. 10 is a wastewater treatment disc drum. It is sectional drawing of the filter part with which a filter is equipped.

In addition, the filter unit 130 for filtering the waste water discharged from the center drum 120 is discharged through the slit hole 122 formed on the outer peripheral surface of the center drum 120, as shown in Figs. It is installed radially perpendicular to the outer surface of the slit hole 122 and the corresponding center drum 120 to pass the waste water to the filter membrane 131, and is divided into a plurality of fan-shaped to allow individual replacement work .                     

The filter unit 130 is composed of a filter membrane 131, a filter base 132, a filter case 135, the filter membrane 131 is the opening of the front, rear opening of the filter case 135 Filtration members respectively fixed to the 135a, and the filter base 132 is a fixing member fixed to the outer surface of the center drum 120 to fix the filter case 135.

The filter base 132 penetrates at least one through hole 132a in a body on an arc-shaped cross section corresponding to the slit hole 122 of the center drum 120, and the filter is formed around the through hole 132a. A plurality of lower threaded holes 133 are formed to coincide with the upper threaded holes 136 of the case 135, and are provided by screw members 135b fastened through the upper and lower threaded holes 133 and 136. The filter base 132 and the filter case 135 are integrally connected.

Here, the upper and lower surfaces of the filter base 132, the upper sealing member 138a in contact with the open lower end of the filter case 135, and the lower sealing member sealed in contact with the outer surface of the center drum 120 The upper and lower sealing grooves 134a and 134b in which 138b are disposed are recessed, respectively.

And, the filter base 132 is a 'b' section fixing bracket 139 assembled as a screw member 139a fastened to a plurality of screw bosses 139b protruding from the outer surface of the center drum 120. It is firmly positioned by the bite force of.

In addition, in the filter case 135 in which the lower end opened on the upper surface of the filter base 32 is assembled, the filter membrane 131 is disposed in each of the openings 135a having the front and rear surfaces thereof, respectively. The lower portion of the filter base 132 is provided with a rib 136a forming an upper threaded hole 136 coinciding with the lower threaded hole 133.

The filter membrane 131 disposed at each of the openings 135a opened at the front and rear of the filter case 135 may have a rectangular frame-shaped fixing frame 137 having a size substantially similar to that of the edge of the filter case 135. A position is fixed between the fixing frame 137 and the filter case 135 by a plurality of screw members 137a fastened to the edge of the filter case 135.

In addition, the filter case 135 is configured in a cross-sectional shape that becomes narrower in the radial direction to facilitate the dropping of foreign matter attached to the inner surface of the filter membrane 131 disposed inclined in the opening (135a) of the front, rear. It is preferable.

In addition, the backwashing unit 140 for removing the foreign matter adhered to the inner surface of the filter membrane 31 is provided with a backwashing nozzle 141 for spraying backwash water to the outer surface of the front surface of the filter membrane 131, the nozzle 141 is provided with a plurality of nozzle arms 142 to correspond to the filter membrane 131, the nozzle arm 142 is a hollow pipe member connected in plurality in communication with the main back washing pipe 143 to which the backwash water is supplied. .

The inside of the center drum 120 is provided with a vertical barrel 145 to collect the foreign matter dropping from the inner surface of the filter membrane 131 with the backwashing water during backwashing and falling through the slit hole 122, External discharge

Here, both ends of the main back washing pipe 143, which is supplied with backwash water from the outside, is rotatably supported through a bearing member on an upper end of the vertical stand 144 provided perpendicular to the main body 110, and the main station Custom tubing 142 is preferably configured to be connected via a backwash water supply pipe 149 and the joint member 148 is positioned to allow free rotation.

11 is a configuration diagram of a nozzle arm swing operation unit provided in the wastewater treatment disk drum filter according to the present invention.

As shown in FIG. 11, the nozzle arm swing operation unit 150 pivots the nozzle arm 142 having the nozzle 141 to evenly spray backwash water to the entire outer surface of the filter membrane 131. By doing so, the eccentric cam 151 which is provided on the drive shaft 115 for rotating the center drum 120 and rotated together with the circular cam 152 external to the outer surface of the eccentric cam 151, The lower link 153 having a predetermined length having the circular cam 152 in the middle, and the intermediate link 154 and the middle of which the one end and the lower end of the lower link 153 which is pivoted up and down are connected to the pin member 153b. The upper and lower ends of the link 154 are connected to the pin member 154a and the 'b' shaped upper links 155 are connected to the upper end of the main station tubing 143 which is rotatably supported on the vertical stand 144. It is composed.

Accordingly, one end is hinged to the main body 110 by a hinge pin 153a while the circular cam 152 externally rotated while the eccentric cam 151 provided in the driving shaft 115 is rotated. The other end of the lower link 153, in which the cam 152 is mounted in the middle, is reciprocated up and down once each time the eccentric cam 151 is rotated.

In addition, the upper link 155 connected through the lower link 153 and the intermediate link 154 is pivoted together with the main back washing pipe 143 while being mounted on the nozzle arm 142 mounted on the main back washing pipe 143. ) Can be evenly sprayed backwash water to the entire outer surface of the filter membrane (131).                     

Figure 12 (a) (b) is an assembly and cross-sectional view of the water level control unit provided in the disk drum filter for wastewater treatment according to the present invention.

The inside of the main body 110 in which the treated water filtered by the filter unit 130 is filled is provided with a vertical bulkhead 119 having a predetermined height so that the treated water may be overflowed, and the vertical bulkhead 119 may have a water level of the treated water. It is provided with a water level adjusting unit 170 to adjust, as shown in Fig. 12 (a) (b), 'c' is mounted on the incision 119 is formed in the cut in the vertical bulkhead 119 Guide frame 171, the water level control gate 172 is provided so as to move up and down on the guide frame 171, the screw is connected to the top of the gate 172 and assembled to the support bar 174 ( It consists of a handle 175 for rotating the 173 in the forward and reverse directions.

Here, the height (h) of the formation of the gate 172 is the opening of the guide frame 171 to vary the level of the water stored in the main body 110 by the vertical height change of the gate 172. It is preferable to form smaller than the height H.

The operation and effects of the present invention having the configuration as described above will be described.

When the disc dream filter 100 of the present invention is equipped with a source of pollution in which waste water is generated, to filter contaminants contained in the waste water, and to reuse the filtered treated water as circulating water, power is supplied to a driving motor not shown. By rotating the drive shaft, the center drum 120 rotatably provided in the main body 110 starts to rotate in one direction.                     

In this state, the wastewater generated in the factory or home is inflowed by a predetermined amount through the inlet 111 of the main body 110 and through the open end of the center drum 120 connected to each other in communication with the inlet 111. The wastewater introduced inside is filled in the inner space of the center drum 120.

Subsequently, the wastewater in the center drum 120 is introduced into the filter unit 130 mounted on the outer surface of the center drum 120 through the slit hole 122, and the wastewater introduced therein is the filter membrane 131. ), While passing through the filter unit 130 including the filter base 132 and the filter case 135, foreign matter adheres to the inner surface of the filter membrane 131 and remains while water passes through the filter membrane 131. While being filtered while being filtered, the treated water is stored in the main body 110 formed by the vertical partition wall 119, and the water level is gradually increased as time passes.

When the water level of the treated water stored in the main body 110 reaches the upper end of the vertical bulkhead 119, the treated water is overflowed and discharged to the outside through the outlet 112 provided in the main body 110, the post-process Will be used for.

Here, in order to lower the water level in the main body 110, the handle 175 of the water level control unit 170 provided in the vertical bulkhead 119 is screwed to the support bar 174 by turning in the fastening direction. By moving the screw 173 downward, the gate 172 mounted at the lower end of the screw 173 is moved downward along the guide frame 171 to lower the water level of the treated water filled in the main body 110. .

Supplement 1) Why is the water level lowered and what is the effect?

In addition, foreign matter remaining on the inner surface of the filter membrane 131 is removed by the backwashing unit 140 that sprays the nozzle 141 to the outer surface of the filter membrane 131.

That is, the backwash water supplied to the main backwashing pipe 143 is branched into a plurality of nozzle arms 142 connected to the main backwashing pipe 143, and the branched backwashing water is filtered through a nozzle 141 mounted to the nozzle arm 142. Since it is injected to the outer surface of the 131, the foreign matter attached to the inner surface of the filter membrane 131 is dropped by the injection pressure of the backwash water, and the dropped foreign matter is dropped into the collecting container 145 to the outside It is discharged.

In addition, the nozzle arm 142 is reciprocated by the nozzle arm swing operation unit 150 for transmitting the rotational power of the drive shaft 115 for rotating the center drum 120 is sprayed through the nozzle 141 The range is such that the entire outer surface of the filter membrane 131 is included.

In this case, the eccentric cam 151 is rotated in one direction by the rotation driving force of the drive shaft 115, and the lower link 153 mounted in the middle of the length while the circular cam 152 is externally rotated is rotated. Since the other end is pivoted up and down about the hinge pin 153a of one end, and the upper link 155 connected to the pin member 154a and the upper end of the intermediate link 154 connected to the lower link 153 is pivoted. The main backwashing tube 143 rotatably supported at both ends on the vertical stand 144 is rotated in the forward and reverse directions, and the nozzle arm 142 connected thereto is pivoted along the surface of the filter membrane 131. Through 141, the backwash is jetted.

On the other hand, if some of the filter membranes 131 provided for each of the plurality of filter cases 135 assembled on the outer surface of the center drum 120 to constitute the filter unit 30 is damaged, the damaged filter membrane 131 Only the filter case 135 having a simple to separate from the filter base 132 to the outside to replace the damaged filter membrane 131 with a new one.

That is, the filter case 135 disassembles the screw member 135b fastened to the upper screw hole 136 that matches the lower screw hole 133 of the filter base 132, and thus the outer surface of the center drum 120. After separating the filter base 132 and the filter case 135 having the filter membrane 131 assembled in each, and then disassemble the screw member 137a fastened to the front and rear of the separated filter case 135 When the fixing frame 137 is disassembled, the filter membrane 131 assembled between the filter case 135 and the fixing frame 137 can be easily separated and replaced with a new one.

In addition, the filter base 132 is freed by disassembling the screw member 139a fastened to the screw boss 139b of the center drum 120 to remove the fixing bracket 139 to release the restriction. It can be decomposed from the center drum 120.

According to the present invention as described above, by having a filter membrane for each of the plurality of divided filter case, it is possible to individually disassemble only the filter case corresponding to the filter membrane damage, so that it is easy to replace the damaged filter membrane without the burden on the operator. Can be done quickly.

In addition, since the nozzle arm is rotated along the outer surface of the filter membrane, the backwash water can be evenly sprayed to the entire filter membrane, thereby extending the service life of the filter membrane and increasing the filtration efficiency.

And since the water level of the main body in which the filtered water is stored can be varied according to the operating conditions, the work productivity is increased, and the effect of filtering various kinds of wastewater can be obtained.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to clarify that knowledge is easy to know.

Claims (6)

The main body has an inlet through which waste water flows in and a discharge port through which the filtered water is discharged, a hollow cylinder-type center drum rotated in one direction about a drive shaft by a drive motor, and discharged through a slit hole formed on an outer surface of the center drum. In the filter device for passing the waste water to filter the foreign matter contained therein and a plurality of nozzles for spraying backwash water to the outer surface of the filter membrane, the filter device for treating waste water A plurality of filter bases formed in at least one through hole overlapping the slit hole in an arc-shaped cross-section, and fixed by a plurality of fixing brackets assembled to the center drum, and a lower portion open to an upper surface of the filter base. A stage is fitted and assembled, the filter membrane is formed in the opening of the front, rear, and a plurality of filter cases which are assembled by a fixed frame, respectively, provided in the outer surface of the center drum; And a nozzle arm swing operation unit for swinging the nozzle arm having the nozzle so as to spray backwash water to the entire outer surface of the filter membrane. The method of claim 1, The upper and lower surfaces of the filter base are recessed to form upper and lower sealing grooves respectively disposed in contact with the open lower end of the filter case, and lower and sealing members respectively contacted with the outer surface of the center drum. Disc drum filter for wastewater treatment, characterized in that. The method of claim 1, Around the through hole of the filter base is formed with a lower screw hole corresponding to the upper screw hole of the filter case, the filter base and the filter case is connected to the upper and lower screw holes by a screw member, characterized in that for wastewater treatment Disc Drum Filter. The method of claim 1, The filter case is a disk drum filter for wastewater treatment, characterized in that it is configured in the cross-sectional shape narrower in the radial direction to facilitate the drop treatment of foreign matter attached to the inner surface of the filter membrane. The method of claim 1, The nozzle arm swing operation unit includes an eccentric cam rotated together with the drive shaft, a circular cam external to the outer surface of the eccentric cam, a lower link of a predetermined length having the circular cam in the middle, and a lower link pivoted up and down. The upper and lower ends of the intermediate link is connected to the pin member and the upper and lower ends of the intermediate link is connected to the pin member and the upper link is integrally connected to the main station customs pipe rotatably supported on the vertical object Disc drum filter for wastewater treatment. The method of claim 1, The water level control unit for adjusting the water level of the treated water is provided in the vertical bulkhead of a predetermined height provided inside the main body, wherein the water level control unit is a guide frame mounted to the incision formed in the vertical bulkhead, and the guide frame The water level control gate is provided to move up and down, and the disk drum filter for wastewater treatment, characterized in that consisting of a handle for rotating the screw connected to the top and screwed to the support bar in the forward and reverse directions.

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