KR0123883B1 - An apparatus for removing a float and a bubble in cohesion station - Google Patents

Abstract

The remover is designed to eliminate suspension such as sludge and bubbles generated from aggregates of water in a filtration plant. The remover includes: a damper(7) including a gate member(17) exposed over an open water surface, the damper(7) being provided on the wall side adjacent to a chemical precipitation tank(3) of an aggregation tank(1) in the width direction of the aggregation tank(1); a lever(16) connected to the damper(7) for regulating the discharging amount of the suspension and the bubbles; a flexible hose(8) extending through one of a plurality of water paths formed on the wall side under the open water surface and having one end thereof connected to a hose nipple formed at the bottom of the damper(7); a discharge pipe(9) connected to the other end of the flexible hose and in communication with an overflow pipe(5) in a discharge groove; and a flow stopper valve(10) switched by a regulator handle(11) and provided in the discharge pipe(9) in vicinity of the overflow pipe(5).

Description

An apparatus for removing a float and a bubble in a cohesion station

Figure 1a is a schematic partial front cross-sectional view of a conventional flocculation paper and drug settling basin.

1B is a plan view thereof.

Figure 2a is a schematic partial front cross-sectional view of the pond and drug settling basin equipped with the float and defoamer of the present invention.

2b is a plan view thereof.

Figure 3 is a schematic cross-sectional view showing the overall configuration and installation state of the float and defoamer according to the present invention.

4 is an enlarged cross-sectional view of a damper means which is a main part of the floating and defoamer shown in FIG.

* Explanation of symbols for main parts of the drawings

1: flocculation paper 3: chemical precipitation paper

5: overflow pipe 7: damper means

8: flexible hose 10: flow shutoff valve

13: link 16: lever

17: gate member 18: hinge

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for removing suspended solids and bubbles such as sludge residue from a flocculation paper that primarily aggregates purified water drawn into a water purification plant.

It is well known that today, as the problem of environmental pollution is getting worse all over the world, more and more people want to drink cleaner and sanitary water. Accordingly, in order to meet these demands, various efforts have been made, such as the development of sewage and wastewater treatment apparatuses for clearing river water as a water source. In addition, the water drawn into the water purification plant is purified through various treatment stages, for example, flocculation and chemical precipitation, filtration, and sterilization. In this stage, the water purification technology can be supplied to provide clearer water to end users. Various studies are being done on. Among such water treatment steps, there is a problem in the flocculation paper which performs the step of first agglomerating impurities such as sludge waste in the water drawn into the water purification plant. In other words, no matter how clear the river water is, the water flowing into the flocculation basin basically contains impurities such as sludge residue. Therefore, it floats on the open water of the flocculation basin and floats in the form of impurity floats and bubbles. A large bubble band gathered on the wall facing the flocculant's chemical sedimentation basin.

However, the removal of suspended solids and bubbles such as sludge residues floating on the open water surface has not been treated with great interest so far in view of their importance. That is to say, even now, the removal of these fine bubbles in the water is discharged to the sewer through the overflow pipe in the drain groove provided in the partition plate between the flocculant and the chemical sedimentation basin by the worker who works at the water purification plant directly using the container. Not only did they have to check for the accumulation of these floats and bubbles, it was a huge annoying and cumbersome task for the workers as well as a huge waste of time and manpower.

In addition, when the rain falls and floats to the bottom of the flocculation paper is settled in order to prevent this to remove the floats and bubbles quickly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel and useful device for easily removing floating matters and bubbles such as sludge residues generated in flocculation papers for agglutination of water supplies drawn into a water purification plant. It is done.

It is still another object of the present invention to provide a device capable of quickly removing floating matter and bubbles floating on an open water surface of agglomerates by simply operating.

In order to achieve this object, the present invention is a device for removing suspended solids and bubbles, such as sludge residues generated in the flocculation paper to agglomerate the water firstly drawn into the water purification plant, in the width direction of the flocculation paper drug settled paper A damper means installed on the wall portion facing the wall and provided on the side opposite to the side mounted on the wall portion, the damper means comprising a gate member whose size is about half the height of the total damper means and whose top is exposed above the open water surface; A lever connected to the damper means to angularly control the discharge of floats and bubbles, and one end of which is connected to a hose nipple formed at the lower end of the damper means, and one of a plurality of channels formed in the wall portion below the open water surface. A flexible hose extending through and having one end connected to the other end of the flexible hose Floating pipe and the bubble removing device, characterized in that the other end comprises a drain pipe communicating with the over-blower pipe in the drain groove, and a flow shutoff valve installed in the drain pipe adjacent to the overflow pipe and opened and closed by an adjustment handle. to provide.

These and other objects and advantages will be more clearly understood from the following description with reference to the accompanying drawings.

First, referring to FIGS. 1 (a) and 1 (b), water is supplied from a water source such as a river to a general water treatment plant through an inlet port 2 by operation of a flow control valve (not shown). In the so-called flocculation and chemical sedimentation basin together with the active agent. At this time, of course, the incoming water contains a large amount of impurities such as sludge waste. In general, the flocculation and chemical sedimentation basin is a flocculation paper (1) which aggregates impurities such as sludge residues in the form of floats and bubbles, and a chemical which precipitates and removes water filtered first from the flocculation paper (1) using a chemical. It is divided into sedimentation basins (3). The water entering the flocculation paper 1 is always adjusted to maintain the same level of open water surface, and gradually flows in the direction of the arrow A by appropriate rotational operation of three stirrers 4 having different rotational speeds. Bubble bands are formed in the form of floats and bubbles, and are collected in the wall portion facing the chemical precipitation paper 3 of the flocculation paper 1.

Thus, when buoyant and bubble-shaped foam bands continue to collect and accumulate in the wall portion of the flocculation paper, they can be directly scooped out, for example using a container, around the wall between the flocculation paper 1 and the chemical precipitation paper 2. It is discharged | emitted to the sewer 6 via the overflow pipe 5 in the provided drain groove. It is clear that this is not only a significant waste of time and manpower, but also annoying for workers.

The water exiting the flocculation basin 1, which is still purified primarily but still contains some impurities, is chemically treated in the chemical sedimentation basin 3 and settled in the form of sludge at the bottom of the sedimentation basin. And are removed from the floor by interaction with the rope. The details of this removal are irrelevant to the present invention and will be omitted here.

2 (a) and 2 (b) are a plan view and a cross-sectional view schematically showing a state in which the float and defoaming device according to the present invention is installed on the wall portion facing the chemical sedimentation basin 3 of the waste paper 1; As can be seen from these figures, the float and defoaming device of the present invention is a U-shaped damper having a long cross-section which is divided into two sections in the width direction of the flocculation paper 1 and mounted on a wall part for the convenience of installation. Means (7), wherein at the lower end of the damper means (7) three hose nipples to which one end of the flexible hose (8) is connected are formed in each section, and the other end of the flexible hose (8) is underwater It is connected to the drain pipe 9 through one of the plurality of waterways provided in the inner wall part.

As can be clearly seen from FIG. 3, which shows an enlarged float and defoamer of the present invention, the drain pipe 9 is in communication with the above-described overflow pipe 5, between which a flow shutoff valve ( 10) is installed. The overflow pipe 5 protrudes slightly higher than the open water surface of the coagulation paper. The adjustment handle 11 for opening and closing the flow shutoff valve 10 extends vertically adjacent to the installation site of the overflow pipe 5 provided at a predetermined position on the intermediate wall and is exposed out of the drain groove. On the other hand, a link plate 12 is attached to the upper portion of the damper means 7, and one end of the vertically elongated link 13 is connected to the link plate 12 by a pin 14. The other end of the link 13 is fixedly connected to one end of the lever 16 that is angularly adjustable to the bracket 15 on the intermediate wall. In the bracket 15, a plurality of minute holes for adjusting the angle are formed at appropriate positions at predetermined intervals. In order to engage with this micro hole and a pin, a pin hole is formed in the corresponding part attached to the bracket 15 also in the lever 16. As shown in FIG. The damper means 7 is mounted on the side wall of the intermediate wall by means of fastening means such as bolts, the upper end of which is installed to be somewhat higher than the open water surface of the aggregate.

Referring now to FIG. 4, there is shown in detail the damper means 7 which is the main part of the float and defoaming device of the present invention. The damper means 7 has an elongated trough shape in the width direction of the aggregated paper having a U-shaped cross section with an open top, and has a gate member 17 which can pivot inward up to 90 ° on the side facing the inside of the aggregated paper. ) Is provided. The gate member 17 has a dimension (approximately 60 mm) corresponding to approximately half of the total height from the top of the damper means, and is hinged by the hinge 18 on the inner wall of the damper means 7 and a rubber plate on the outer wall. It is coupled with the main body by the flat iron plate 20 via (19). The use of a rubber plate is intended to prevent the joining portion between the gate member and the main body from being directly exposed to water in the coagulation paper and corroding during long-term use. In addition, the rubber plate has a shape that can bend smoothly along its movement angle during the inward swinging movement of the gate member.

Hereinafter, the operation of the float and bubble removing device of the present invention having the above-described configuration will be described. First, near the wall facing the chemical sedimentation basin (3) of the flocculation paper, when some of the floating matter and bubbles, such as debris collects to some extent, the operator operates the control handle 11 to open the flow shutoff valve (10), Pull the lever 16 to move it upward to the desired angle position. As a result, the gate member 17 of the damper means 7 connected thereto is moved downward inwardly by a predetermined angle, because it is moved downward of the link 13 connected to the lever 16, and is blocked by the gate member 17. The suspended solids and bubbles enter the damper means 7 and flow through the flexible hose 8 connected to the lower end thereof to the drain pipe 9 and finally to the drain 6 through the overflow pipe 5.

Thereafter, the operator who has completed the removal of the floating matter and bubbles gathered in the bubble band in the flocculation paper 1 again pulls the lever 16 downward to return the gate member 17 of the damper means 7 to its original position. To allow no more water to escape, and after some time after the discharge of the floats and bubbles through the drain pipe 9 is finished, turn the adjustment handle 11 to close the flow shutoff valve 10. The removal of the floats and bubbles is complete.

In this embodiment, the pivoting movement of the gate member 17 of the damper means 7 using the link and the lever is described, but it will be fully understood that the present invention can be automatically operated by using an electronic control device.

As can be seen from the above description, according to the floating and defoamer of the present invention, it is possible to easily remove impurities such as sludge residues floating on the open water surface of the flocculation paper by simple operation, and to be done by hand. Float and foam can be removed much faster and more reliably.

The present invention has been described in the case of being applied to the flocculation paper installed in the water purification plant for supplying water, which is exemplary and not intended to limit the present invention, for example, may be applied to the case of sewage and wastewater treatment plants. Therefore, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention as set forth in the appended claims.

Claims (3)

A device for removing suspended solids such as sludge residues and bubbles generated from flocculation papers, which firstly aggregates the purified water drawn into the water purification plant, wherein the chemical precipitation papers of the flocculation papers 1 in the width direction of the flocculation papers 1 A damper comprising a gate member (17) mounted on a wall portion facing the wall) and provided on a side opposite the side mounted on the wall portion, the size of which is about half the height of the total damper means and the top of which is exposed above the open water surface. A lever (16) connected to the damper means (7) via a link (7), a link (13) to angularly regulate the discharge of suspended matter and foam, and a hose nipple formed at the lower end of the damper (7). One end is connected and extends through one of the plurality of waterways formed in the wall portion below the open water surface, and one end is connected to the other end of the flexible hose 8, and the other end is Within the drain groove A drain pipe 9 communicating with the bur flow pipe 5 and a flow shutoff valve 10 installed in the drain pipe 9 adjacent to the overflow pipe 5 and opened and closed by the adjustment handle 11 are provided. The gate 17 is pivotable inwardly with the main body of the damper means 7 by the hinge 18 of its inner side and by the flat iron plate 20 via the rubber plate 19, respectively. At the same time, it is pivotally moved inwardly of the damper means (7) by the operation of the link (13) and the lever (16). 2. The damper means (7) according to claim 1, wherein the damper means (7) is divided into two sections having a U-shaped cross section with an open top, and each section has one end of the flexible hose (8) spaced at a lower end. Floating and bubble removing device in the pond, characterized in that three connected hose nipples. 2. Apparatus according to claim 1, characterized in that the gate member (17) is operated using an electronic control device instead of the link (13) and the lever (16).