KR20160093419A - Dissolved Air Floatation Having Skimmer Cleaning Apparatus - Google Patents

Abstract

Disclosed is a dissolved air floatation apparatus including a skimmer cleaning device. According to an embodiment of the present invention, provided is the dissolved air floatation apparatus (100) for collecting and eliminating floating materials (2) floating on a surface of water (1) to be treated, which comprises: a floatation tank (130); a float trough (140); a skimmer (110) which is mounted between the floatation tank (130) and the float trough (140), has a cylindrical structure on an outer surface of which a plurality of blades (111) are formed, and transfers the floating materials (2) from the floatation tank (130) to the float trough (140) through rotation operation; and a skimmer cleaning device (120) which is mounted on the skimmer (110), and eliminates the floating materials (2) attached to the skimmer (110). According to the dissolved air floatation apparatus of the present invention, the skimmer cleaning device configured to eliminate floating materials or sludge attached to the skimmer is provided, and thus floating materials or sludge can be prevented from being attached to and solidified on the skimmer. Also, skimmer rotating efficiency and target material eliminating efficiency can be improved by preventing the floating materials or sludge from being attached to and solidified on the skimmer.

Description

[0001] Dissolved Air Floatation Having Skimmer Cleaning Apparatus Including a Skimmer Cleaning Apparatus [0002]

The present invention relates to a dissolved floating apparatus for collecting and removing suspended solids floating on the water surface of treated water, and more particularly to a dissolved floating apparatus including a skimmer washing apparatus.

The water treatment of sewage wastewater and the like causes the biological reaction process and the physical treatment to achieve the desired water treatment by sequentially passing the raw water inflow tank, the settling tank and the aeration tank for the rough treatment. For example, The step of decomposing and precipitating using the activated sludge, and the step of removing the supernatant in the precipitation step are carried out by activating the aerobic bacterial propagation by receiving oxygen from the aeration tank, separating the supernatant from the second precipitation tank, The best filtered water filtered through the third settling tank or the filtration tank is treated with chemicals and discharged to the river.

In this water treatment, the removal of suspended matters is mainly carried out in a settling tank. For example, a predetermined amount of treatment water is stored to maintain a low flow rate, and the surface of the treated water and the bottom Chain sprockets are used to install an infinite tracked chain flight, which is transported at a low speed by a separate drive motor. The settled sediment is treated to one side of the bottom of the tank, and floats rising to the surface of the water are treated using a separate collection device.

A number of such devices have been developed to date. As a representative example thereof, there is a method of pumping floating matters on the water surface by using a dipper, a method of harvesting using a scraper or a vacuum suction table, and a method of harvesting using a spinning type skimmer.

Fig. 1 is a side schematic view showing a conventional floating apparatus according to the related art, and Fig. 2 is an enlarged view of a portion A of Fig.

In these drawings, a dissolved floating device in a harvesting system using a water-borne skimmer among the above-mentioned collection devices is shown. In the case of a dredging system using a spinning mill type skimmer, floating materials (active sludge, sludge, etc.), which are substances to be removed, are adsorbed on the skimmer, which interferes with the rotation operation of the skimmer, There is a problem that the efficiency is lowered.

Accordingly, there is a need for a scum collecting apparatus including a structure capable of solving the above problems.

Korean Patent Laid-Open Publication No. 10-2001-0100631 (published November 14, 2001)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dissolved floating device including a skimmer cleaning device capable of preventing a floating material or sludge from adhering to a skimmer and solidifying the same.

It is also an object of the present invention to provide a dissolved floating device including a shaker cleaning device capable of improving the rotation efficiency of a skimmer and the removal efficiency of a target material by preventing a suspended material or sludge from sticking to solidify the skimmer will be.

According to an aspect of the present invention, there is provided a dredging apparatus for collecting and removing suspended solids floating on a water surface of a treated water, comprising: a float separating tank and a float trough; An apparatus comprising: a skimmer mounted between a floating separation tank and a float trough and having a cylindrical structure having a plurality of blades formed on an outer surface thereof, the floating tank moving from the floating separation tank to the float trap by rotation; And a skimmer cleansing device mounted on the skimmer for removing suspended solids attached to the skimmer.

In one embodiment of the present invention, the skimmer cleaning device includes: a water transfer pipe mounted on the blade in the longitudinal direction of the skimmer, the water transfer pipe having water supply pipes and water return pipes at both ends; And a water jet opening formed at a predetermined distance from the water transfer pipe to jet water flowing into the water transfer pipe into the blade of the skimmer.

In one embodiment of the present invention, the skimmer cleaning device comprises: a microtubule formed on the surface of a blade of a skimmer in a plurality of lattice structures or a network structure, and having water supply pipes and water return pipes at both ends; And a water discharge port formed in the microtubes to discharge water flowing into the microtubes to the surface of the blade of the skimmer.

In one embodiment of the present invention, the skimmer cleaning device may be a high frequency vibration energy generating device that supplies high frequency vibration energy to the blade of the skimmer. In this case, the skimmer cleaning device may further include a temperature holding device for maintaining the temperature of the blade of the skimmer at a predetermined temperature. At this time, the preset temperature may be 40 to 60 degrees Celsius.

A dissolved floating device according to another aspect of the present invention is a dissolved floating device for collecting and removing floating substances floating on a water surface of a treated water having a floating separation tank and a float trough, A skimmer mounted between the separating tank and the float trough and having a cylindrical structure with a plurality of blades formed on an outer surface thereof and transferring the suspended substances from the float separating tank to the float trap by the rotating operation; And a skimmer cleansing device mounted adjacent to the skimmer for removing suspended solids attached to the skimmer.

In one embodiment of the present invention, the skimmer cleaning device includes: a spray nozzle fixing part mounted to be rotatable by a predetermined angle adjacent to a skimmer, and mounting a fluid spray nozzle at one end; And a fluid spray nozzle mounted at one end of the spray nozzle fixing part and spraying a fluid to the blade of the skimmer. At this time, the fluid ejected from the fluid injection nozzle may be water, a washing solution, or compressed air.

In one embodiment of the present invention, the skimmer cleaning device includes: a reciprocating motion part reciprocating in the longitudinal direction of the skimmer adjacent to the skimmer and mounting the skimming means at one end; And a kicking unit mounted on one end of the reciprocating unit and sweeping the surface of the blade of the skimmer in one direction by the reciprocating motion of the reciprocating unit. Optionally, the kicking means may be a plate-like blade or a brush. Further, the kicking means may include a high frequency vibration energy generating device.

As described above, according to the dissolved floating apparatus of the present invention, the floating material attached to the skimmer or the skimmer cleaning device for removing the sludge is provided, so that the floating material or the sludge can be prevented from adhering to the skimmer.

Further, according to the dissolved floating device of the present invention, it is possible to improve the rotation efficiency of the skimmer and the removal efficiency of the target material by preventing the floating material or the sludge from sticking to the skimmer.

1 is a side view schematically showing a conventional floating spinning device.
2 is an enlarged view of a portion A in Fig.
3 is a side schematic view showing a part of a dissolved floating device according to an embodiment of the present invention.
4 is a front schematic view showing a skimmer of the dissolved floating device shown in Fig. 3;
5 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention.
6 is an enlarged view of a portion B in Fig.
7 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention.
8 is a side schematic view showing a part of a dissolved floating device according to another embodiment of the present invention.
9 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is " on " another member, this includes not only when the member is in contact with another member, but also when there is another member between the two members.

Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

Fig. 3 is a side schematic view showing a part of a dissolved floating device according to an embodiment of the present invention, and Fig. 4 is a schematic front view showing a skimmer of the dissolved floating device shown in Fig.

Referring to these drawings, the dissolved floating device 100 according to the present embodiment includes a floating separation tank 130 and a float trough 140, and is configured to float on the surface of the treated water 1 A dewatering apparatus 100 for collecting and removing suspended solids 2, and a skimmer cleansing device 120.

3, the skimmer 110 is mounted between the floating separation tank 130 and the float trough 140 and has a cylindrical shape with a plurality of blades 111 formed on the outer surface thereof. And the floating material 2 can be transferred from the floating separation tank 130 to the float trough 140 by the rotation operation.

The skimmer cleaner 120 may also be mounted to the skimmer 110 to remove the suspended solids 2 attached to the skimmer 110.

More specifically, the skimmer cleaning apparatus 120 may be configured to include a water transfer piping 1213 mounted on the blade 111 in the longitudinal direction of the skimmer 110, as shown in FIG. At this time, the water transfer pipe 1213 has a water supply pipe 1211 and a water return pipe 1212 at both ends, so that water can flow into the water transfer pipe 1213. In addition, the water transfer pipe 1213 may be provided with a plurality of water injection ports 1214 for discharging water flowing into the water transfer pipe 1213 to the outside. 4, the water jetting port 1214 is formed at a predetermined distance in the water transfer pipe 1213, and water flowing into the water transfer pipe 1213 is supplied to the blade of the skimmer 110 (Not shown).

It goes without saying that the embodiment can be modified by changing the mounting position of the water transfer pipe 1213 to the outside of the blade 111 and setting the water injection direction to the inside of the blade 111 in accordance with the intention of the designer or the operator . Therefore, the mounting position of the water transfer pipe 1213 and the water injection direction setting can be freely changed according to the intention of the designer or the operator.

Therefore, the skimmer cleaning device 120 of the dissolved sparking apparatus 100 according to the present embodiment including this configuration can easily remove the suspended solids adhered to the blade 111. In addition, since the blade 111 can be kept moist at all times, it is possible to prevent the floating material or the sludge from adhering to the skimmer 110 to be solidified.

Fig. 5 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention, and Fig. 6 is an enlarged view of a portion B in Fig.

Referring to these drawings, the skimmer cleaning apparatus 120 according to the present embodiment may be configured to include a micropipe 1223 and a water outlet 1224. [

Specifically, the micropipes 1223 can be mounted on the surface of the blades 111 of the skimmer 110 in a plurality of lattice structures or network structures, as shown in Fig. The fine pipe 1223 has a water supply pipe 1221 and a water return pipe 1222 at both ends, and can flow water into the inside thereof.

6, a water outlet 1224 may be formed in the micropipe 1223 to discharge water flowing into the micropipe 1223 to the surface of the blade 111 of the skimmer 110 .

Accordingly, the skimmer cleaning device 120 of the dissolved sparking apparatus 100 according to the present embodiment including this configuration can maintain the blade 111 at a constant moist state, so that the suspended material or sludge It can be prevented from being attached and solidified in advance.

7 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention.

Referring to FIG. 7, the skimmer cleaner 120 according to the present embodiment may be a high frequency vibration energy generator 123 for supplying high frequency vibration energy to the blade 111 of the skimmer 110.

The high frequency vibration energy generating device 123 generates high frequency vibration energy to remove the suspended substances or sludge attached to the surface of the blade 111 of the skimmer 110.

Specifically, the high frequency vibration energy generating device 123 can clean the surface of the blade 111 of the skimmer 110 by using a cavitation phenomenon. The cavitation phenomenon is a phenomenon used for ultrasonic cleaning, and is widely known to those skilled in the art. Therefore, detailed description thereof will be omitted.

In some cases, the skimmer cleaning apparatus 120 according to the present embodiment may further include a temperature holding device for keeping the temperature of the blade 111 of the skimmer 110 at a predetermined temperature.

In order to utilize the cavitation phenomenon most effectively, the temperature of the object to be cleaned must be maintained at an appropriate temperature. It is generally known that the effect of cavitation is reduced when the temperature is below 40 degrees Celsius or above 60 degrees Celsius. Therefore, the above-mentioned preset temperature is preferably 40 to 60 degrees Celsius.

It is most preferable that the frequency of the vibration energy generated by the above-described high-frequency vibration energy generating device 123 is within the range of the short-range frequency of 20 kHz to 40 kHz.

A plurality of high frequency vibration energy generators 123 may be mounted to apply a multiple frequency to selectively generate two or more frequencies so that uniformity of the surface of the blade 111 of the skimmer 110 A cleaning effect and a wide particle removing effect can be achieved. A plurality of high frequency vibration energy generators 123 may be mounted to simultaneously apply a simultaneous multi-frequency system that simultaneously generates a wide band frequency to uniformly apply a uniform frequency to the surface of the blade 111 of the skimmer 110. [ A cavitation effect and a precise cleaning effect can be achieved. When the multi-frequency method is applied, it is most preferable that the frequency range of the vibration energy is set in the range of 40 kHz to 90 kHz. In some cases, the frequency range of vibration energy may be extended to the range of 20 kHz to 90 kHz to achieve a more uniform cleaning effect.

Therefore, the skimmer cleaning device 120 of the dissolved floating device 100 according to the present embodiment including this configuration can easily remove the floating material or the sludge attached to the blade 111. [

8 is a side schematic view showing a part of a dissolved floating device according to another embodiment of the present invention.

Referring to FIG. 8, the skimmer cleaning apparatus 120 according to the present embodiment may be configured to include a spray nozzle fixing portion 1242 and a fluid injection nozzle 1241, which are mounted adjacent to the skimmer 110.

More specifically, as shown in FIG. 8, the spray nozzle fixing portion 1242 is a structure that is mounted so as to be rotatable by a predetermined angle adjacent to the skimmer 110, and mounts the fluid spray nozzle 1241 at one end thereof . The fluid injection nozzle 1241 is mounted at one end of the spray nozzle fixing portion 1242 and can spray fluid to the blade 111 of the skimmer 110. [

The skimmer cleaning device 120 may be disposed on either the float separation tank 130 side or the float trough 140 side, for example, water, a cleaning solution, or compressed air. Can be installed.

The skimmer cleaning apparatus 120 may use the spray nozzle 1241 described above to remove suspended solids or sludge attached to the blade 111 of the skimmer 110. At this time, the direction of the fluid ejected from the ejection nozzle 1241 can be adjusted by using the ejection nozzle fixing portion 1242.

The position of the jet nozzle fixing portion 1242 may be appropriately changed so as to effectively remove the floating matters or sludge attached to the blade 111 while preventing the fluid such as water from flowing into the float truff 140 have.

Accordingly, the skimmer cleaning device 120 of the dissolved floating device 100 according to the present embodiment including this configuration can easily remove floating substances or sludge that are adhered to or pressed against the blade 111.

9 is a front schematic view showing a skimmer of a dissolved floating device according to another embodiment of the present invention.

Referring to FIG. 9, the skimmer cleaning apparatus 120 according to the present embodiment may be configured to include a reciprocating unit 1252 and a kicking unit 1251.

Specifically, the reciprocating portion 1252 reciprocates in the lengthwise direction of the skimmer 110 adjacent to the skimmer 110, and can mount the skimmer 1251 at one end. The kicking means 1251 is mounted on one end of the reciprocating portion 1252 and can sweep the surface of the blade 111 of the skimmer 110 in one direction by the reciprocating motion of the reciprocating portion 1252 .

More specifically, the above-mentioned kicking means 1251 can physically push and drop the floating material or sludge attached to the surface of the blade 111 of the skimmer 110. A blade-type blade or a brush may be used as the blade 1251 suitably adopted in the present embodiment. It goes without saying that the above-mentioned example is merely an example, and can be appropriately changed and adopted according to the intention of the user or the designer's intention.

Further, the reciprocation portion 1252 can be mounted on the rail 1253 and reciprocated.

Optionally, the kicking means 1251 can be engaged with the reciprocating portion 1252 by a hinge structure 1254, as shown in Fig. At this time, the removal effect can be further improved by suitably changing the contact angle between the breaking unit 1251 and the blade 111 by using the hinge structure 1254.

In addition, the above-described kicking means 1251 may be configured to include a high-frequency vibration energy generating device. In this case, as described above, the high-frequency vibration energy generator can more effectively remove the suspended substances or sludge attached to the surface of the blade 111 of the skimmer 110 by using the cavitation phenomenon.

Furthermore, the high-frequency vibration energy generating device can be employed together with the skimmer cleaning device according to all of the above-mentioned embodiments and can be operated more effectively.

As described above, according to the dissolved floating apparatus of the present invention, the floating material attached to the skimmer or the skimmer cleaning device for removing the sludge is provided, so that the floating material or the sludge can be prevented from adhering to the skimmer.

Further, according to the dissolved floating device of the present invention, it is possible to improve the rotation efficiency of the skimmer and the removal efficiency of the target material by preventing the floating material or the sludge from sticking to the skimmer.

In the above description of the present invention, only specific embodiments thereof are described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

That is, the present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. And such variations are within the scope of protection of the present invention.

1: treated water 2: suspended material
10: Dissolved floating device according to the prior art 100: Dissolved floating device
110: Skimmer 111: Blade
120: Skimmer cleaning device 1211: Water supply piping
1212: water return pipe 1213: water feed pipe
1214: Water nozzle 1221: Water supply pipe
1222: water return pipe 1223: fine pipe
1224: Water outlet 123: High frequency vibration energy generating device
1241: fluid jet nozzle 1242: jet nozzle fixing portion
1251: kicking means 1252:
1253: Rail 1254: Hinge structure
130: Float separator 140: Float trough

Claims (12)

A dissolved floating device (100) for collecting and removing suspended solids (2) floating on a water surface of treated water (1), comprising a floating separator (130) and a float trough (140)
The float material 140 is installed between the floating separator 130 and the float trap 140 and has a plurality of blades 111 formed on the outer surface thereof. A skimmer 110 for transferring the water from the float trap 140 to the float trap 140;
A skimmer cleaning device 120 mounted on the skimmer 110 for removing suspended solids 2 attached to the skimmer 110;
And a plurality of dummy lifting devices. The method according to claim 1,
The skimmer cleansing device 120 comprises:
A water transfer pipe 1213 mounted on the blade 111 in the longitudinal direction of the skimmer 110 and having water supply pipes 1211 and water return pipes 1212 at both ends; And
A water jet opening 1214 formed at a predetermined distance in the water transfer pipe 1213 and discharging water flowing into the water transfer pipe 1213 to the blade 111 of the skimmer 110;
And a plurality of dummy lifting devices. The method according to claim 1,
The skimmer cleansing device 120 comprises:
A micropipe 1223 formed on the surface of the blade 111 of the skimmer 110 in a plurality of grid structures or a network structure and having water supply pipes 1221 and water return pipes 1222 at both ends; And
A water discharge port 1224 formed in the micropipes 1223 for discharging water flowing into the micropipes 1223 to the surface of the blades 111 of the skimmer 110;
And a plurality of dummy lifting devices. The method according to claim 1,
Wherein the skimmer cleaning device (120) is a high frequency vibration energy generation device (123) for supplying high frequency vibration energy to the blade (111) of the skimmer (110). 5. The method of claim 4,
Characterized in that the skimmer cleaning device (120) further comprises a temperature holding device for maintaining the temperature of the blade (111) of the skimmer (110) at a predetermined temperature. 6. The method of claim 5,
And the predetermined temperature is 40 to 60 degrees Celsius. A dissolved floating device (100) for collecting and removing suspended solids (2) floating on a water surface of treated water (1), comprising a floating separator (130) and a float trough (140)
The float material 140 is installed between the floating separator 130 and the float trap 140 and has a plurality of blades 111 formed on the outer surface thereof. A skimmer 110 for transferring the water from the water tank 130 to the float trap 140;
A skimmer cleaning device 120 mounted adjacent to the skimmer 110 for removing suspended solids attached to the skimmer 110;
And a plurality of dummy lifting devices. 8. The method of claim 7,
The skimmer cleansing device 120 comprises:
A spray nozzle fixing portion 1242 mounted adjacent to the skimmer 110 so as to be rotatable by a predetermined angle and having a fluid injection nozzle 1241 mounted at one end thereof; And
A fluid injection nozzle 1241 mounted at one end of the spray nozzle fixing portion 1242 and spraying a fluid to the blade 111 of the skimmer 110;
And a dewatering device for dewatering the dewatering device. 9. The method of claim 8,
Wherein the fluid ejected from the fluid ejection nozzle (1241) is water, a cleaning liquid, or compressed air. 8. The method of claim 7,
The skimmer cleansing device 120 comprises:
A reciprocating portion 1252 reciprocating in the lengthwise direction of the skimmer 110 adjacent to the skimmer 110 and mounting the lifting means 1251 at one end; And
A kicking means 1251 installed at one end of the reciprocating portion 1252 and sweeping the surface of the blade 111 of the skimmer 110 in one direction by the reciprocating motion of the reciprocating portion 1252;
And a dewatering device for dewatering the dewatering device. 11. The method of claim 10,
Characterized in that the kicking means (1251) is a plate-like blade or a brush. 11. The method of claim 10,
Characterized in that the kicking means (1251) comprises a high frequency vibration energy generating device.

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