KR20120102207A - Coagulant throwing apparatus for waste water treatment device - Google Patents

Abstract

PURPOSE: A chemical introducing apparatus of a sewage and wastewater treating facility is provided to easily coagulate and eliminate sludge by rapidly reacting the sludge with an introduced solution mixed with coagulant. CONSTITUTION: A chemical introducing apparatus of a sewage and wastewater treating facility includes a coagulant mixing and distributing bath(110) and a mixed solution distributing part. The coagulant mixing and distributing bath mixes coagulant and water and distributes the mixed solution to be discharged. The mixed solution distributing part is combined with both sides of the coagulant mixing and distributing bath. The mixed solution, which is discharged from the coagulant mixing and distributing bath, flows through the mixed solution distributing part to be introduced into sewage and wastewater in a reactor.

Description

Coagulant throwing apparatus for waste water treatment device

The present invention relates to a wastewater treatment facility for purifying wastewater, and more particularly, in order to aggregate and remove sludge contained in the wastewater in any one of the reaction tanks of the wastewater treatment facility. The present invention relates to a chemical input device of a wastewater treatment facility for mixing and dispersing a flocculant and water in a reactor to evenly disperse the diluted liquid mixture.

As the interest in environmental pollution such as air, soil, and water has increased due to the development of industrial technology and the improvement of living standards, the regulations on the emission of various pollutants are gradually being strict, especially among the pollutants related to water quality. No matter how much interest is concerned, water management is very important, as pollutants related to water quality must be purified and discharged.

Water pollutants, which are important resources as described above, are largely divided into sewage and wastewater generated from industrial sites and domestic sewage discharged from homes.The waste and wastewater and household sewage (collectively referred to as "wastewater") are The wastewater treatment facility is purified and discharged into a river.

Here, the treatment efficiency of the wastewater treatment facility is determined according to how efficiently the sludge contained in the wastewater is treated in the process of purifying the wastewater in the wastewater treatment facility. Treatment efficiency is very important.

The sludge treatment process included in the wastewater treatment facility in the wastewater treatment facility, the wastewater sent to the wastewater treatment facility is composed of each reaction tank of the wastewater treatment facility, that is, screen, sedimentation tank, sedimentation tank, bioreactor, aeration tank, etc. The waste water treatment facility is purged with clean water in the wastewater treatment facility because the sludge, such as foreign matter or suspended matter contained in the wastewater and suspended matter, dissolved matter, phosphorus substance, etc. is filtered out or aggregated while being sequentially passed through each reactor. do.

In each of the reaction tanks of the wastewater treatment facility, the bioreactor is used to treat dissolved substances or phosphorus contained in the wastewater by using microorganisms, as well as sludge such as foreign substances or suspended matter contained in the wastewater / wastewater in the bioreactor. The drug, that is, flocculates in a floc form by the flocculant, and the flocculated floc sludge is removed while settling to the bottom of the reactor.

However, due to the large area of the bioreactor in which the coagulant is introduced in each reaction tank of the conventional wastewater treatment facility to agglomerate and remove the sludge in the form of flocs, it is difficult to select a suitable point for the coagulant addition and evenly add the coagulant evenly. Not only very difficult but also the input of the coagulant solution in a small amount of the sludge contained in the waste water in the reaction tank and the reaction between the coagulant is slow, it takes a lot of time to remove the sludge agglomeration and waste water in the reaction tank There was a problem that the treatment efficiency for agglomeration and removal of the sludge included is lowered.

The present invention has been proposed in order to solve the problems in the prior art as described above, the chemical injection device to install a chemical injection device in any one of each reaction tank of the waste water treatment facility to purify the waste water. In the present invention, not only can the slurry mixed with the flocculant and water be uniformly dispersed in the reaction tank, but also the sludge contained in the mixed solution and the waste water dispersed in the reaction tank is easily reacted to quickly aggregate the sludge. The purpose is to improve treatment efficiency by removing and purifying.

In the present invention for achieving the above object, in the chemical input device for injecting a flocculant into the reaction tank to agglomerate the sludge contained in the waste water of each reaction tank of the waste water treatment facility to purify the waste water, The chemical injection device is combined with the coagulant mixing distribution tank to mix the incoming flocculant and water, as well as to dispense and discharge the mixed mixture, and to be respectively located on both sides of the coagulant mixing distribution tank, the coagulant mixing distribution tank Provided is a chemical input device for a wastewater treatment facility, characterized in that the mixed solution dispensing unit for dispensing the mixed solution into the waste water in the reaction tank while the mixed liquid discharged from the flow.

In another aspect, the present invention, the flocculant admixture distribution tank, the main body forming the appearance, the chemical inlet pipe installed in the upper portion of the main body to introduce the coagulant sent from the drug supply pump into the main body, and is spaced apart from the outer surface of the chemical inlet pipe A water inlet pipe installed in the upper portion of the main body and flowing water from the water supply pump into the main body, and formed in a main body in which end portions of the chemical inlet pipe and the water inlet pipe are respectively located; The mixing unit and the dispensing unit formed in the main body in communication with the mixing unit, the dispersing unit having a distribution hole for dispensing and discharging the mixed liquid introduced as well as the mixed liquid in which the flocculant and water are mixed and flowed in; A coagulant admixture for the mixed liquid which is located in both sides of the part and is formed in the main body in communication with the distribution part and is sent from the distribution part. The set of drugs in the waste water treatment plant, characterized by comprised discharge portion having a discharge hole for discharging to the external input device are provided.

In addition, the present invention, the mixed liquid distribution unit, the width of the gradually gradually narrowed toward the outside so that the mixed liquid discharged from the flocculant mixed dispensing tank, as well as the box-shaped distribution body of which the top is open, any one of the front and rear of the distribution body A plurality of mixed liquid dispersing grooves formed on one side to disperse and mix the mixed liquid in the main body with the reaction tank, and are coupled to the side of the flocculant mixed dispensing tank and installed inside the dispensing body and flow into the distributing body. Provided is a chemical injection device of a wastewater treatment facility, characterized in that it consists of a jet plate having a plurality of injection holes on the bottom to disperse.

According to the present invention made as described above, the chemical injection device installed in any one of the reaction tank of the waste water treatment facility for purifying the waste water, the coagulant mixing distribution tank for mixing and diluting the flocculant and water, and It is provided on both sides of the flocculant admixture dispensing tank and consists of a mixed-liquid distribution tube for dispersing and diluting the mixed liquid diluted with the flocculant into the reaction tank. As the contact area of the resin becomes wider, the effect of adding the flocculant is improved, that is, the sludge contained in the wastewater and the wastewater in the reaction tank is easily reacted with the mixed liquid to be added in a dispersed manner, and the sludge is easily aggregated and removed. The effect of improving the treatment efficiency to purify have.

In addition, as the chemical injector is open, it is possible to visually confirm that the coagulant is dispersed and injected in the chemical injector, so that an appropriate amount of coagulant may be easily added to the sludge, that is, floc or precipitate in the reactor. There is also an effect of more easily removing the floc or precipitate during closure.

In addition, the structure of the coagulant mixed dispensing tank and the mixed liquid dispensing tube of the chemical injecting device is simple, and the chemical injecting device is assembled to be movable by the device fixing unit, and thus, the chemical injecting device can be installed in the reaction tank having various forms. In addition, the drug injection device is easy to repair, replace, repair, there is also an effect that is firmly supported and fixed so as not to flow to external vibration or shock.

On the other hand, in the chemical input device, dispersing and mixing the mixed solution of the flocculant and the water into the reaction tank is made only by the pressure of the flocculant and the water without any power, so that the flocculant can be easily added, and the installation cost is low and semi-permanent. There is also a possible effect.

1 is a front view showing a state in which the chemical injection device is installed in the waste water treatment facility of the present invention.
Figure 2 is a side view showing a state in which the chemical injection device is installed in the waste water treatment facility of the present invention.
Figure 3 is a perspective view of the chemical injection device of the present invention waste water treatment facility.
Figure 4 is a plan view showing only one side of the chemical injection device of the present invention waste water treatment facility.
Figure 5 is a perspective view cut away to show the interior of the coagulant mixing dispensing tank of the present invention drug injection device.
Figure 6 is a cross-sectional view showing a flocculant mixing distribution tank of the present invention chemical injection device.
Figure 7 is a cross-sectional view showing the flocculant mixing distribution tank of the present invention chemical injection device.

Hereinafter, the chemical input device of the wastewater treatment facility according to the present invention will be described in more detail with reference to FIGS. 1 to 7.

The present invention is to clean or remove the sludge, such as foreign matter and suspended solids contained in the sewage and wastewater (2), the sewage and wastewater generated in industrial sites and domestic sewage discharged from the home, to clean state Wastewater treatment facilities are installed to purify.

The waste water treatment facility is equipped with a reaction tank for filtering or flocculating and removing the sludge, that is, a screen, a sedimentation tank, a sedimentation tank, a bioreactor, and an aeration tank. The waste water (2) is different from each other. The sludge contained in the wastewater is filtered or aggregated and removed while sequentially passing through each reactor performing the function.

Here, the chemical injection device 100 is introduced into a reaction tank 1 into which a coagulant is added to coagulate and remove sludge contained in the waste water in the waste water treatment facility, that is, a precipitation tank, a biological reaction tank, and an aeration tank. It is not only located above the water surface of the waste water, but also installed on the side where the waste water flows from the reactor into another reactor.

The chemical injection device 100 is located on the upper surface of the water of the waste water of the reaction tank 1 by the device fixing part 200 provided on the ground of the outer side of the reaction tank 1 as shown in Figs. The support is fixed.

Here, the drug injection device 100 is composed of a mixed solution distribution pipe 120 is installed on both sides of the flocculant mixing distribution tank 110 and the flocculant mixing distribution tank 110 as shown in Figures 1 to 4. .

The flocculant admixture distribution tank (110) is introduced with a flocculant and water, respectively, and the introduced flocculant is diluted while mixing with water, and the diluted mixed liquid is discharged while being distributed to the outside of the flocculant mixture distribution tank (110). It is sent to the pipe (120).

The mixed liquid distribution pipe 120 distributes the mixed liquid to the waste water in the reaction tank 1 while flowing the mixed liquid discharged from the flocculant mixed distribution tank 110.

As shown in FIGS. 5 to 7, the flocculant admixture distribution tank 110 is formed with a main body 111 to form an appearance, and is installed at an upper portion of the main body 111 to pump the chemical supply pump. The chemical inlet pipe 112 for introducing the coagulant sent from the chemical supply pump by the force into the main body 111 is installed, so that one end of the chemical inlet pipe 112 is located inside the main body 111 of the main body 111. The upper part is provided with a water inlet pipe 113 for introducing the water sent from the water supply pump into the main body 111 by the pumping force of the water supply pump.

The chemical inlet pipe 112 and the water inlet pipe 113 is manufactured in the form of a double tube so that the coagulant stock solution flowing through the drug inlet pipe 111 is not in contact with the metal, that is, the water inlet pipe 113 Is a form surrounding the outer circumferential surface of the drug inlet pipe 112 in the spaced apart state as well as the outer surface of the one end of the drug inlet pipe 112, the one end and the water inlet pipe 113 of the drug inlet pipe (112) One end of is in communication.

The chemical inlet pipe 112 uses a synthetic resin, that is, a urethane hose, the water inlet pipe 113 is made of a stainless material.

In the main body 111, one end of the chemical inlet pipe 112 and one end of the water inlet pipe 113 are located, as well as the coagulant flowing from the chemical inlet pipe 112 and the water inlet pipe 113 A mixing unit 114 for mixing water with water is formed, and in the mixing unit 114, a mixed liquid is formed in which a coagulant is dissolved while being dissolved in water.

In the main body 111, the mixed liquid diluted while the coagulant and the water are mixed in the mixing unit 114 is introduced, and the distribution unit 115 distributing and distributing the introduced mixed liquid to the discharge unit 116, which will be described later, is provided. It is formed in communication with the mixing section 114, the distribution holes 115a are formed on both sides of the distribution section 115 to respectively send the mixed liquid to the discharge section 116.

Between the mixing unit 114 and the distribution unit 115, the distribution unit 115 than the bottom of the mixing unit 114 so that the flow of the mixed liquid from the mixing unit 114 to the distribution unit 115 is smoothly flowed in. Step 118 is formed so that the bottom of the bottom.

Located in both sides of the dispensing unit 115, the mixed liquid sent from the dispensing unit 115 through each dispensing hole 115a of the dispensing unit 115 is disposed inside the main body 111. Discharge parts 116 are formed to be discharged to the mixed liquid distribution pipe 120 so as to be discharged to the lower part of the discharge parts 116, and the mixed liquid is discharged from the discharge parts 116 to the coagulant admixture distribution tank 110. A discharge hole 116a for discharging is formed.

Each of the discharge parts 116 in the distribution hole (115a) to send to the discharge hole (116a) while the mixed liquid sent from the distribution unit 115 to the discharge unit 116 smoothly flows through the distribution hole (115a) An inclined surface 117 that is gradually inclined toward the discharge hole 116a is provided.

Therefore, the coagulant and water are introduced into the main body 111 of the coagulant admixture distribution tank 110 through the chemical inlet pipe 112 and the water inlet pipe 113, respectively, and are combined in the mixing unit 114 by water. A mixed solution in which the flocculant is diluted is formed.

The mixed liquid is sent from the mixing unit 114 to the distribution unit 115, the distribution unit 115 is sent to each discharge unit 116 while the mixed liquid is distributed through each distribution hole (115a), The mixed liquid sent to each discharge part 116 is guided to the discharge hole 116a while flowing along the inclined surface 117 and discharged to the mixed liquid distribution pipe 120 through the discharge hole 116a.

On the other hand, the mixed liquid dispensing unit 120 is provided with a dispensing body 121 through which the mixed liquid discharged from each discharge portion 116 of the flocculant mixing dispensing tank 110 flows, the distribution body 121 of the One surface is coupled to the outer surface of the flocculant mixing distribution tank 110, the upper portion of the distribution body 121 is formed in an open box shape.

In addition, the distribution body 121 is formed so that the width gradually becomes narrower toward the outside in the flocculant mixing distribution tank 110, which shortens the residence time of the mixed liquid introduced into the distribution body 121, the distribution body This is to smoothly flow to the outside of the 121.

The distribution body 121 is formed with a plurality of mixed liquid dispersion injection grooves 122 to disperse the mixed liquid flowing therein into the waste water in the reaction tank 1, and the outer surface of the mixed liquid dispersion injection groove 122 A guide piece 123 for guiding the flow of the mixed liquid discharged from the distribution body 121 is provided, and the guide piece 123 is preferably formed in the same shape as the mixed liquid dispersion injection groove 122.

The mixed liquid dispersion injection groove 122 is formed in an inverted triangular shape to facilitate the discharge of the mixed liquid. If the shape of the mixed liquid dispersion injection groove 122 is a shape that can be easily discharged of the mixed liquid, as well as the reverse triangular shape It can be formed in various shapes such as square and round.

The mixed liquid dispersion injection groove 122 of the distribution body 121 to smoothly aggregate the sludge contained in the waste water (2) in the reaction tank 1 by the mixed liquid dispersed into the reaction tank (1) It is formed on either the front or back side.

The mixed liquid flows into the distribution body 121 and flows into the distribution body 121 so that the mixed liquid is dispersed and introduced into the waste water 2 in the reaction tank 1 through each of the mixed liquid dispersion injection grooves 122 in the main body 121. A jet plate 124 smoothly dispersed in the dispersion injection groove 122 is coupled to the side of the flocculant mixing distribution tank 110, a plurality of powders to be dispersed while the mixed liquid passes through the bottom of the jet plate 124 The hole 124a is formed.

Therefore, the mixed liquid sent from the flocculant mixed dispensing tank 110 is introduced into the distribution body 121 of the mixed liquid spray tube 120, and the introduced mixed liquid is injected through the spray plate 124 and the respective injection holes 124a. Evenly distributed and sent to each mixed liquid dispersion injection groove 122, the mixed liquid is injected into the waste water (2) in the reaction tank (1) by each of the mixed liquid dispersion injection groove 122 and the guide piece 123 Therefore, the sludge contained in the wastewater 2 in the reactor 1 is agglomerated while reacting with a mixed liquid, that is, a mixed liquid containing a flocculant, and the agglomerated sludge, that is, flocs or precipitates, is caused by a natural fall phenomenon. It is precipitated to the bottom in the reactor 1.

When the reaction tank 1 is closed by flocs or sediments settled to the bottom in the reaction tank 1, it is taken out and removed.

In this way, the chemical input device 100 is installed on the discharge side of the reaction tank 1, which is the side where the waste water 2 flows from the reaction tank 1 to the other reaction tanks, and the flocculant through each inlet pipe 112, 113. The coagulant and water introduced into the mixing dispensing tank 110 are mixed, and the mixed liquid in which the coagulant is diluted is introduced into the mixed solution distribution pipe 120 and the waste water in the reaction tank 1 through each of the mixed solution dispersion input grooves 122. (2) By dispersing and distributing it evenly, the sludge contained in the wastewater 2 in the reactor 1 is aggregated to remove it, and the wastewater 2 is purified to a clean state.

Meanwhile, an apparatus fixing part 200 for supporting and fixing the chemical injection device 100 from the outside of the reaction tank 1 or for taking out the chemical injection device 100 from the reaction tank 1 for repair or maintenance is provided. It is.

The device fixing part 200 is coupled to the flocculant admixture distribution tank 110 to install the drug input device 100 in the reaction tank 1 while raising and lowering the drug input device 100 in the reaction tank (1). It consists of a lower support 210 and a fixed support 220 is connected to the mixed solution distribution pipe 120 to support and fix the drug injection device 100 outside the reactor (1).

The lifting support 210 is provided with a fixed column 211 which is located outside the reaction tank 1 to be coupled to the ground (1a), the reaction tank (1) on the upper portion of the fixed column (211) An arm 212 positioned in a direction orthogonal to the fixing pillar 211 is provided to face the inside, and the coagulant is raised to lower the chemical injection device 100 at a predetermined position of the fixing pillar 211. The winding part 213 which is connected by the fastening ring 215 and the connection line 214 fastened to the mixing dispensing tank 110 and wound and unwound said connection line 214 is provided.

The upper portion of the arm 212 between the fastening ring 215 and the winding portion 213 is at least guided by the winding portion 213 to guide the movement of the connecting line 214 so that the connecting line 214 is easily wound up and released. One or more rollers 216 are rotatably coupled.

The fixed pillar 211 may be composed of a single piece, or when the length of the fixed pillar 211 is long, several pieces may be connected to each other.

The fixed support part 220 is provided with a fixing bracket 221 which is located on the outer side of the reaction tank (1) and coupled to the ground (1a), the upper side of the fixing bracket 221 to the inside of the reaction tank (1) A fixed beam 222 is positioned to face in a direction orthogonal to the fixing bracket 221, and a connection link 223 is coupled to an outer surface of the mixed liquid distribution pipe 120, and the mixed liquid distribution pipe ( A support link 224 is coupled to an end of the connection link 223 opposite to the 120, and the height and horizontality of the chemical injection device 100 is adjusted between the fixed beam 222 and the support link 224. Of course, the turnbuckle 225 is fixed to the same position to the external shock and vibration is installed.

Therefore, the chemical injection device 100 is not only supported and fixed to the outside of the reaction tank 1 by the elevating support 210 and the fixed support 220, the winding portion 213 and the connecting line of the elevating support 210 As the chemical injection device 100 is moved up and down by 214, the chemical injection device 100 can be smoothly installed in the reaction tank 1 as well as the chemical injection device 100 is removed from the reaction tank 1. Repair and replacement of parts is easy.

In addition, by the fixing bracket 221 and the fixing beam 222 and the connecting link 223, the support link 224 of the fixed support 220, the drug injection device 100 is firmly on the outside of the reaction tank (1). Not only can be fixed and fixed by the turnbuckle 225 connected between the fixed beam 222 and the support link 224, and easily adjust the height and horizontal of the drug injection device 100, as well as vibration or shock Also about the drug injection device 100 is fixed at the same position.

As described above, the chemical input device of the wastewater treatment facility according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings described herein, and the skilled person within the technical scope of the present invention. Since various modifications may be made by the present invention, they should not be individually understood from the technical spirit or the prospect of the present invention.

100: chemical injection device 110: flocculant mixing distribution tank
111: main body 112: chemical inlet pipe
113: water inlet pipe 114: mixing section
115: distribution unit 115a: distribution hole
116: discharge part 116a: discharge hole
117: slope 118: step
120: mixed liquid distribution tube 121: distribution body
122: mixed liquid injection hole 123: guide piece
124: injection plate 124a: injection hole
200: device fixing part 210: lifting support
211: fixed column 212: arm
213: winding unit 214: connecting line
215: fastening ring 216: roller
220: fixed support 221: fixing bracket
222: fixed beam 223: connecting link
224: support link 225: turnbuckle

Claims (7)

In the chemical input device that puts a flocculant into the reaction tank to agglomerate the sludge contained in the waste water of each reaction tank of the waste water treatment facility to purify the waste water,
The chemical injection device, the coagulant mixed dispensing tank to mix the incoming flocculant and water, as well as to distribute and discharge the mixed liquid mixture,
The chemicals of the wastewater treatment facility are configured to be combined to be located on both sides of the flocculant admixture dispensing tank, the mixed liquid dispensing unit for dispensing the mixed liquid into the waste water in the reaction tank while flowing the mixed liquid discharged from the flocculant admixture distribution tank. Dosing device. The method of claim 1,
Flocculant admixture distribution tank,
The main body forming the appearance,
A chemical inlet pipe installed at an upper portion of the main body and introducing a coagulant sent from the chemical supply pump into the main body;
A water inlet pipe installed at an upper portion of the main body in a form spaced apart from the outer surface of the chemical inlet pipe and introducing water from a water supply pump into the main body;
A mixing part formed in a body in which ends of the chemical inflow pipe and the water inflow pipe are respectively located, and the inflowing flocculant and water are mixed;
A dispensing part formed in the main body in communication with the mixing part and having a dispensing hole for dispensing and discharging the mixed liquid introduced as well as introducing the mixed liquid in which the flocculant and water are mixed;
The chemical injection device of the wastewater treatment facility, which is located on both sides of the distribution unit is formed in the main body in communication with the distribution unit and having a discharge hole for discharging the mixed liquid sent from the distribution unit to the outside of the coagulant mixed dispensing tank .
The method of claim 2,
The bottom of the dispensing unit is a chemical injection device of the waste water treatment facility, characterized in that formed lower than the bottom of the mixing section.
The method of claim 2,
In the discharge portion, the chemical injection device of the wastewater treatment facility, characterized in that the slope is gradually inclined toward the discharge hole from the distribution hole.
The method of claim 1,
The mixed liquid distribution part,
A box-shaped distribution body having a wider opening as well as a narrower width toward the outside so that the mixed liquid discharged from the flocculant mixing distribution tank is introduced,
A plurality of mixed liquid dispersion feeding grooves formed on either of the front and rear surfaces of the distribution body to disperse the mixed liquid in the main body into a reaction tank;
Chemicals of the wastewater treatment facility is coupled to the side of the flocculant mixing distribution tank as well as installed in the distribution body having a plurality of injection holes in the bottom surface to disperse the mixed liquid introduced into the distribution body Dosing device.
The method of claim 5, wherein
The mixed liquid dispersion injection groove is formed in an inverted triangular shape, the chemical injection device of the wastewater treatment facility, characterized in that the guide piece for guiding the discharge of the mixed liquid is installed on the outer surface of the mixed liquid dispersion injection groove.
The method of claim 1,
In order to support and fix the drug injection device from the outside of the reaction tank, the elevating support portion coupled with the coagulant admixture distribution tank of the drug injection device to raise and lower the drug injection device, and is connected to the mixed solution distribution pipe of the drug injection device The device fixing portion made of a fixed support for supporting the input device is further provided,
The elevating support portion, a fixed pillar that is located on the outer side of the reaction tank coupled to the ground, an arm installed on the upper portion of the fixed pillar, and a fastening ring installed at a predetermined position of the fixed pillar is fastened to the coagulant mixing distribution tank It is connected by a connecting line and the winding is made of a winding unit wound and unwinded,
The fixed support portion, the fixed bracket which is located on the side of the reaction tank is coupled to the ground, the fixed beam is installed to be orthogonal to the fixed bracket on the upper portion of the fixed bracket, and the connecting link coupled to the outer side of the mixed liquid distribution pipe, And a support link coupled to the end of the connection link, and a turnbuckle installed between the fixed beam and the support link to adjust the horizontal level of the chemical injection device.

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