KR200286711Y1 - 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, having a front inlet (11) in which waste water is introduced into the inside, having a discharge port (12) outside the treated water is discharged in the rear, the body having a predetermined size of internal space 10; A hollow cylinder-shaped center drum (20) rotatably received in the inner space of the main body (10) and having a rear end connected to a drive shaft of a drive motor for generating a rotational power, the leading end of which waste water is introduced therein is opened; A plurality of slit holes 22 are formed in the circumferential direction on the outer circumferential surface of the center drum 20, and the slit balls are configured to pass the waste water introduced into the inner space through the slit holes 22 to the front and rear surfaces. 22, vertically installed in the radial direction, provided with at least one at a predetermined interval in the longitudinal direction of the center drum (20) for filtering the waste water 30; It is equipped with a backwashing supply pipe having a plurality of backwashing nozzles 41 so as to spray backwashing water to the front and rear surfaces of the filter member 30, and collects foreign substances falling off from the filter member 30 together with the backwashing water. It includes a backwashing processing unit (40) for treating the backwashing water equipped with a backwashing water discharge collection container (45) fixedly installed in the center hole of the center drum (20) so as to be discharged outside.

Description

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

The present invention relates to a disc drum filter for treating wastewater, and more particularly, to pass pollutants such as suspended foreign matter, turbidity, microorganisms, etc. contained in the wastewater through a porous filter membrane, and to filter the contaminants of the filtered treated water. The present invention relates to a disc drum filter for wastewater treatment, in which the concentration is lowered below the legal standard, so that the water quality standard of the treated water can be completely satisfied.

In general, river, lake or soil pollution leads to serious ecosystem pollution such as seawater and wells, which are pollutants from wastewater discharged from homes and factories, including sewage discharged water, and decay 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 wastewater treatment facility according to the prior art, as shown, which is a sedimentation tank 110 in which wastewater is introduced and stored from the outside, the reaction tank 120 to condense contaminants by reacting the contaminants and chemicals. ) And the treatment tank 130 for treating the treated water and the sludge separately, and the motors 111, 121, 131 installed in the settling tank 110, the reaction tank 120, and the treatment tank 130. By rotating the stirrer by means of a driving source, the precipitated contaminants are 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 110, the reaction vessel 120 and the treatment tank 130 in proportion to the inflow of the wastewater to be treated, and occupies occupied at the time of 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.

Therefore, the present invention has been proposed to solve the conventional problems as described above, the purpose is to minimize the occupied space occupied during installation, greatly reduce the initial investment cost, significantly reduce the waste water treatment time during operation to increase the treatment efficiency In addition, the present invention aims to provide a disk drum filter that can reduce wastewater treatment costs during microfiltration of organic materials and microorganisms, minimize contamination of media, stabilize water quality of treated water, and minimize the use of backwash water.

1 is a schematic view showing a general wastewater treatment facility,

Figure 2 is a perspective view showing a disk drum filter for wastewater treatment according to the present invention,

Figure 3 is an operating state showing a disk drum filter for wastewater treatment according to the present invention,

Figure 4 is a detailed view showing the filter member employed in the disk drum filter for wastewater treatment according to the present invention,

Figure 5 (a) (b) is a front view, a side view showing a disk drum filter for wastewater treatment according to the present invention.

Explanation of symbols on the main parts of the drawings

10 ... Main Unit 11 ... Inlet

12 ...... Outlet 20 ...... Center drum

22 ...... Slit hole 30 ...... Filter element

31 ...... Filter membrane 32 ...... Fixed frame

33 ...... Block 40 ...... Backwash

41 ...... Reverse nozzle 42 ...... Nozzle branch

43 ...... Backwashing supply pipe 45 ...... Collector for backwashing water discharge

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

A main body having an inlet through which waste water is introduced into the front and an outlet through which the treated water is discharged to the rear, and having a predetermined internal space;

A hollow cylinder-shaped center drum rotatably received in the inner space of the main body, the front end of which waste water is introduced therein is opened, and a rear end thereof connected to the drive shaft of the driving motor generating rotational power is hermetically sealed;

A plurality of slit balls are formed in the circumferential direction on the outer circumferential surface of the center drum, and the slit balls are installed perpendicularly in the radial direction to pass the waste water introduced into the inner space through the slit holes to the front and rear surfaces in the radial direction. At least one filter member having a predetermined interval in the longitudinal direction of the center drum to filter waste water;

A backwashing supply pipe having a plurality of backwashing nozzles for injecting backwashing water into the front and rear surfaces of the filter member, and together with the backwashing water, collects foreign substances that are separated from the filter member and falls to the center hole of the center drum. It is equipped with a collection tank for backwash water discharge fixedly installed in the waste water treatment disk drum filter characterized in that it comprises a backwash treatment unit for treating the backwash water.

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

Figure 2 is a perspective view showing a disk drum filter for wastewater treatment according to the present invention, Figure 3 is an operating state diagram showing a disk drum filter for wastewater treatment according to the present invention, Figure 4 is a disk for wastewater treatment according to the present invention Figure 5 is a detailed view showing a filter member employed in the drum filter, Figure 5 (a) (b) is a front view, a side view showing a disk drum filter for wastewater treatment according to the present invention.

The disc drum filter 1 of the present invention, as shown in Figures 2 to 5, passing the waste water containing suspended matter, microorganisms and contaminants through a porous filter membrane to be separated into reusable treated water and contaminants, filter It is possible to maintain the filtration efficiency of the filter membrane by backwashing the filter membrane by the backwashing water sprayed into the membrane. Such a disc drum filter 1 includes a main body 10, a center drum 20, a filter member 30, and backwashing. The processing part 40 etc. are comprised.

The main body 10 is an accommodating member having an internal space of a predetermined size so that the center drum 20 and the filter member 30 mounted on the outer circumferential surface thereof are accommodated without interference, and the front of the main body 10 is generated at home and factory. The waste water is provided with an inlet 11 through which the wastewater flows into the inside, and the rear side of the wastewater penetrates through the outlet 12 through which the treated water separated from the pollutant is discharged.

The main body 10 is formed through the inlet port (11) in communication with the inlet pipe (not shown) for guiding the waste water inside, and the discharge pipe (not shown) for discharging the treated water filtered by contaminants to a later process While forming a discharge port (12) in communication with the rear surface, the upper surface is provided in the form of a tank assembled to open and close the cover 13 for observation on one side.

In addition, the main body 10 is an upper tank assembled to open and close the cover 13 on one side so as to be installed in a concrete channel or a water tank, and also as a lower structure for supporting it as a plurality of vertical and horizontal frames. It may be configured.

In addition, the center drum 20 is a hollow cylindrical member rotatably assembled in the inner space of the main body 10, the front end of the total amount of waste water supplied through the inlet 11 of the main body 10 It is opened so that the rear end is connected to the drive shaft of the drive motor which generates the rotational power when the power is applied, and is sealed to prevent waste water from being discharged without filtration, while cutting the slit hole 22 in the circumferential direction on the outer circumferential surface, At least one slit hole 22 is provided at a predetermined interval in the drum length direction.

Here, the center hole of the center drum 20 is installed to enable the idle rotation of the plurality of guide rolls 23 circumferential to the inner peripheral surface of the tip. When the one-way rotational drive of the center drum 20 by the drive motor will be able to smoothly guide the rotation.

In addition, the filter member 30 for filtering the waste water is to pass the waste water in the center drum 20 introduced into the inner space through the slit hole 22 formed on the outer circumferential surface of the center drum 20 to the front and rear. Each slit hole (22) is a disk-type filtration member installed perpendicular to the radial direction.

The filter member 30 is a set of a pair of front and back to filter the waste water introduced through the fixed frame 32 and the slit hole 22 vertically installed along the rim of the slit hole 22 to the front and rear surfaces. And a blocking plate 33 mounted as a clamp 33a to seal the outer peripheral end of the filter membrane 31 fixed to the fixed frame 32 and the front and rear pairs of the filter membrane 31.

Here, the front and rear of the pair of filter membrane 31 is configured to widen or narrow the front and rear intervals in accordance with the width of the slit hole 22 in which the waste water in the center drum 20 is introduced, the surface by the solid or foreign matter during the filtration process Preferably, at least one divided assembly in the circumferential direction is made in the fixing frame 32 to facilitate individual replacement when damaged.

The filter membrane 31 may be made of polyester or fabric filter material, and the fixing frame 32 may be made of stainless steel (STS304 or STS306), and may be made of a special alloy in a highly corrosive environment. .

In addition, the filter member 30 is preferably submerged in water about 60%, the head loss passing through the filter membrane 31 varies in a variety of 50 to 200mm, the maximum allowable head loss during operation is 300mm. .

On the other hand, the backwashing processing unit 40 is composed of a backwash nozzle 41 and a backwash collection tube 45, the backwash nozzle 41 is reversed to the front and rear of the filter member 30 facing each other. It is disposed between them to inject the washing water, the collection cylinder 45 is separated from the filter member 30 with the backwashing water during backwashing to collect the foreign matter falling through the slit hole 22 to discharge the outside It is fixedly installed horizontally in the hollow of the center drum (20).

Here, the backwash nozzle 41 is disposed in the drum length direction on the upper portion of the filter member 30, and on the front and rear surfaces of the filter member 30 facing each other from the backwashing supply pipe 43 to which the backwashing water is supplied. A plurality of nozzle branch pipes 42 are disposed therebetween so as to spray backwash water.

In addition, the collection cylinder 45 is a cylinder member having an upper portion open to receive the entire amount of contaminants along with backwash water falling to the upper portion, and fixed at both ends to the front and rear surfaces of the main body 10. It is preferable to be inclined so that it is easy to discharge the backwashed water that has fallen through the tip exit.

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

When the disc dream filter (1) of the present invention is equipped with a source of generation of waste water to filter contaminants contained in the waste water, and the recycled filtered water is to be reused as circulating water, first, waste water generated in a factory or home Is introduced by a predetermined amount through the inlet 11 of the main body 10, and gradually introduced into the central hole through the open end of the center drum 20 in communication with the inlet 11 and the center drum 20 It will start to fill in the center hole.

In this case, slit holes 22 are formed in the inner circumferential surface of the center drum 20, respectively, and the porous filter membrane 31 constituting the front and rear surfaces is formed in the slit hole 22, and the outer edge is formed. Since the filter member 30 having an internal space is formed by the fixing frame 32 and the blocking plate 33, the wastewater introduced into the center hole of the center drum 20 is transferred through the slit hole 22. It naturally falls into the inner space of the filter member 30.

Subsequently, contaminants in the wastewater introduced into the filter member 30 constitute the front and rear surfaces of the filter member 30 and are filtered through a filter membrane 31 made of a porous material, while water is filtered through the filter membrane ( 31 is filtered while passing through, the water level of the filtered water is gradually increased as time passes in the main body 10, the level of the treated water is increased to the outlet 12 formed on the rear surface of the main body 10 As early as this, it is discharged to the outside and used in a later process.

On the other hand, the solid contaminants adhere to the inner surface of the filler film 31 by the filtration process using the filter membrane 31 of the filter member 30, thereby reducing the filtration efficiency of the waste water is filtered through, The water level in the inner space of the filter member 31 starts to rise gradually.

In addition, the filter member 31 is configured to detect the water level is changed up and down in the internal space, and equipped with a level sensor for controlling the operation time of the drive motor and the opening and closing time of the backwash supply pipe in accordance with the detected water level change, the filter Head loss is 300mm or more by the level sensor that detects the water level rising in the inner space of the member 31, and if it detects this, the external power is supplied to the driving motor by the detection signal generated at the same time and the backwash supply pipe 43 Open the valve member (not shown).

In this case, the center drum 20 connected to the drive shaft of the drive motor receives the power of the drive motor being rotated and starts to rotate in one direction, counterclockwise in the drawing, and the filter member 31 mounted on the outer circumferential surface thereof. Also rotated with this.

At the same time, a washing backwash having an injection pressure of about 5 to 8 bar is injected through the backwash nozzle 41 of the nozzle branch pipe 42 disposed for each filter member 31 facing each other, and the injected backwash water is injected into the filter member. While hitting the outer surface of the filter membrane 31 constituting the front and rear surfaces of the 31, the solid contaminants attached to the inner surface of the filter membrane 31 are separated, and the separated contaminants are slit holes 22 by their own weight. Fall through).

In addition, the dropped pollutants and backwash water are collected and dropped into the opened upper portion of the backwash discharge collector 45 which is supported at both ends at the center hole of the center drum 20, and the collected backwash water is polluted. In addition to the material, it is discharged to the outside.

Accordingly, when the contaminants trapped in the filter membrane 31 are removed by the backwash water, the filtration efficiency of the filter membrane 31 is increased, and the amount of wastewater flowed through the filter membrane 31 increases and the water level in the filter member 31 is increased. Is lowered to its initial state. At this time, by stopping the rotation drive of the drive motor by the detection signal of the level sensor for detecting this to stop the rotation operation of the center drum 20 and at the same time by closing the valve member of the backwash supply pipe 43 backwash nozzle ( Stop spraying the backwash water through 41).

When some of the plurality of filter membranes 31 constituting the filter member 30 are damaged, the clamp 33a of the blocking member 33 holding the corresponding filter membrane 31 is loosened, and the fixed frame The filter membrane 31 supported by (32) is replaced. Accordingly, it is possible to improve work productivity by reducing the work time required when replacing the filter and reducing downtime of the facility.

According to the present invention as described above, it is installed to have a large filtration area in a small installation area to reduce the capital investment cost, while improving the work productivity by minimizing the work time and downtime when replacing the damaged filter member, Long service life and low maintenance costs are achieved.

While the subject innovation has been shown and described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the subject innovation as provided by the following claims. I would like to clarify that knowledge is easy to know.

Claims (7)

A main body (10) having an inlet (11) through which waste water is introduced into the front, and an outlet (12) through which the treated water is discharged to the rear, and having a predetermined internal space; A hollow cylinder-shaped center drum (20) rotatably received in the inner space of the main body (10) and having a rear end connected to a drive shaft of a drive motor for generating a rotational power, the leading end of which waste water is introduced therein is opened; A plurality of slit holes 22 are formed in the circumferential direction on the outer circumferential surface of the center drum 20, and the slit balls are configured to pass the waste water introduced into the inner space through the slit holes 22 to the front and rear surfaces. 22, vertically installed in the radial direction, provided with at least one at a predetermined interval in the longitudinal direction of the center drum (20) for filtering the waste water 30; A backwashing supply pipe 43 having a plurality of backwashing nozzles 41 is provided to spray backwashing water to the front and rear surfaces of the filter member 30, and the foreign matter dropped from the filter member 30 together with the backwashing water falls. For the wastewater treatment, characterized in that it comprises a backwashing processing unit 40 for treating the backwashing water equipped with a backwashing water collection collector 45 is fixed to the central hole of the center drum 20 to collect the external discharge Disc Drum Filter. The method of claim 1, The central drum of the center drum 20, a disk drum filter for wastewater treatment, characterized in that a plurality of guide rolls (23) to be in contact with the inner peripheral surface of the tip is installed to enable idle rotation. The method of claim 1, The filter member 30 is a set of a pair of front and back to filter the waste water introduced through the fixed frame 32 and the slit hole 22 vertically installed along the rim of the slit hole 22 to the front and rear surfaces. And a blocking plate 33 mounted as a clamp 33a to seal the outer circumferential end of the filter membrane 31 and the pair of front and rear filter membranes 31 fixed to the fixed frame 32. Disc drum filter for wastewater treatment. The method of claim 3, wherein The filter membrane (31) is a disk drum filter for wastewater treatment, characterized in that at least one divided assembly in the circumferential direction so as to facilitate individual replacement in case of surface damage. The method of claim 1, The backwash nozzle 41 is disposed longer in the drum length direction on the upper portion of the filter member 30 and backwashed on the front and rear surfaces of the filter members 30 facing each other from the backwashing supply pipe 43 to which water for backwashing is supplied. Disc drum filter for wastewater treatment, characterized in that a plurality is installed in the nozzle branch pipe (42) disposed between them to inject. The method of claim 1, The collection cylinder 45 is a disk drum filter for wastewater treatment, characterized in that the inclined so as to be easily discharged to the outside through the front outlet through the back-washed water collected. The method of claim 1, The filter member 31 is configured to detect the water level is changed up and down in the internal space, and equipped with a level sensor for controlling the operation time of the drive motor and the opening and closing time of the backwashing supply pipe in accordance with the detected water level change Drum filter