KR100316968B1 - Scum skimmer for use in precipitation tank - Google Patents

Abstract

PURPOSE: Provided is a scum skimmer for use in a precipitation tank, the scum skimmer being helpful for an operator to easily go across from one side to the other side and easily operate a precipitation tank. CONSTITUTION: The scum skimmer comprises a scum skimming device(30) being comprised of a pair of scum skimming guide plates(31) separated from each other to have a large distance at upstream of a precipitation tank and a small distance at downstream of the precipitation tank, and a scum collecting trough(32) at downstream of the precipitation tank for collecting scum therein, wherein an upper portion of the guide plates(31) is positioned above the surface of water and a lower portion of the guide plates(31) is positioned under the water; a scum removing device(50) installed at the center of the scum collecting trough(32) and provided with a scum overflow tube(51) which has a horn-shape effluent weir at the top thereof and the effluent weir is positioned at the same level as the highest water level; and a scum discharging device(60) connected to the scum overflow tube(51) for discharging scum outside.

Description

Floating material removal device of chemical needle battery

The present invention relates to an apparatus for removing suspended solids of a drug settler, and more particularly, to an apparatus for removing suspended solids from a settler for reducing the burden on rapid filter paper by removing the suspended solids generated in the settler.

According to the general water supply standards, the rapid filtration process is carried out through the water wells → mixed papers → floc forming papers → flocculators → sedimentation cells → rapid filtration papers → purified water.

The raw water undertaken in the impingement mixes with the chemicals in the mixing pond, which flows into the flocculent through the flocculent inlet, and the floc grows in the flocculent, which flows between the floc to reach the settling basin. Because of the possibility of being destroyed when it is influenced from the outside, floc forming paper is installed as an integrated structure between the mixed paper and the chemical needle battery. That is, the floc forming paper and the sedimentation basin are installed in an integral structure.

In the mixed paper, the turbidity of the drug-mixed raw water, that is, the suspended solids aggregate into micro flocs and then flow into the floc forming paper, causes the flocculated flocs to become large and heavy. do.

As such, the drug settler can reduce the burden on the subsequent rapid filter paper by removing most of the large and heavily grown large floes through the step of chemical injection, mixing, and floc formation by sedimentation.

In other words, the drug settler is to perform three functions of precipitation, buffering and sludge discharge, these functions are complementary to each other so that each function can be fully exhibited.

In addition, in the commentary of the standards of water supply facilities, the direction of wind is investigated to remove dust or oil suspended in the sedimentation basin, and the overflow pipe is installed at the place where dust such as the right angled part of the wind is easy to collect.

However, in the conventional general medicine sedimentation battery, a floating pipe located at one end on the surface of the sedimentation basin is installed so that the suspended material is collected by overflowing the overflow pipe.However, the suspended material in the area adjacent to the overflow pipe is collected to some extent. The collection of suspended solids flowing in the area separated from the flow pipe is not performed smoothly, so that the suspended solids are not properly removed from the sedimentation basin, and as a result, they are attached to the wall of the subsequent rapid filter paper. There was a problem given.

Accordingly, it is an object of the present invention to provide an apparatus for removing suspended solids of a drug settler battery, which enables the collection and removal of suspended solids more effectively.

It is another object of the present invention to provide an apparatus for removing suspended solids in a drug settler battery to increase the strength of both side walls of the settler and to facilitate the worker's settling and crossing work.

1 is a plan view of a drug immersion battery according to the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged cross-sectional plan view of the portion “B” of FIG. 1.

4 is a cross-sectional view taken along the line C-C of FIG.

5 is an enlarged cross-sectional view taken along the line D-D of FIG. 3.

6 is a detail view of the portion “E” of FIG. 5.

7 is an enlarged plan view of a portion “F” of FIG. 1.

8 is a cross-sectional view taken along the line G-G of FIG.

9 is a plan view of the nozzle part of FIG. 8;

10 is a side view of FIG. 9;

** Explanation of symbols for the main parts of the drawing **

10: floc forming region 20: sedimentation basin

28: walk way 30: suspended solids collection means

31: suspended solids collection guide plate 32: suspended solids collection gutter

33: floating material collection unit 40: floating material collection promoting means

41: pressure water main 42: pressure water injection nozzle

44: pressure water injection pressure control valve 46: pressure water control valve

50: floating material removal means 51: floating material overflow pipe

53: fixed pipe for adjusting the height of the moon 55: adjustment of the height of the moon

60: airborne discharge means 61: airborne discharge pipe

62: floating material collection manhole 63: floating material off-site discharge pipe

In order to achieve the object of the present invention, the upstream side is wider on the water surface of the drug settler and gradually narrower toward the downstream side, and the upper half is installed on the surface of the sedimented water and the lower half is installed below the surface of the floating material collection space. Suspended solids collecting means having a suspended solids collecting guide plate forming a suspended solids collecting plate and a suspended solids collecting groove forming a suspended solids collecting unit at a downstream end of the suspended solids collecting guide plate; Floating material removal means installed in a central lower portion of the suspended solids collection unit of the suspended solids collecting means and having a floating material overflow pipe at the top of which a trumpet-shaped overhang is located at the highest level of the sedimentation basin; It is connected to the suspended solids suspension pipe of the suspended substance removing means is provided with a suspended solids discharge means for discharging the suspended substances to the ground; provides a suspended solids removing device of the drug settler.

The suspended matter overflow pipe of the suspended matter removal means is screwed to the fixed height for adjusting the height of the moon fixed to the sedimentation basin, and is configured to adjust the height of the overflow by turning the suspended matter overflow pipe left and right.

Hereinafter, an apparatus for removing suspended solids of a drug needle battery according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of a drug immersion battery according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A of FIG.

The floc forming paper 10 is a floc forming paper inlet 11 and a raw water introduced through the inlet 11, the drug is injected into the mixed paper (not shown) from the upstream side; An inflow rectifying wall 13 for rectifying the condensate and an agglomeration paper 14 for condensing the raw water introduced through the inflow rectifying wall 13 are provided.

An inlet side 12 is installed between the floc forming inlet 11 and the inlet rectifying wall 13.

The aggregated paper 14 is divided into a plurality of aggregated papers 14a, 14b, and 14c by a plurality of (in the example shown, three storage walls 15a, 15b, and 15c).

Channels 16a and 16c are formed at lower ends of the first and third reservoir walls 15a and 15c, and second reservoir walls 15b are formed lower than the first and third reservoir walls 15a and 15c. So that the upstream portion 16b is formed at an upper end thereof, so that the raw water introduced into the first agglomerator 14a of the agglomeration paper 14 is formed through the water channel 16a formed at the lower end of the first storage wall 15a. Flows into the flocculation paper 14b, flows through the upper overflow portion 16b of the second reservoir wall 15b into the flocculation paper 14b, and flows into the flocculation paper 14c, and again into the third flocculation paper. At 14c, the water flows in such a manner as to flow into the sedimentation basin 20 through the water channel 16c formed at the lower end of the third reservoir wall 15c, thereby increasing the coagulation effect in the entire flocculation basin 14.

A floating material outlet 17 is installed at an upper end of the third storage wall 15c.

1 and 2, the sedimentation basin 20 allows sedimentation of the sedimentation basin inlet rectifying wall 21 formed between the floc forming basin 10 and the sedimentation basin 20 from the upstream side to settle the sludge. It consists of a sedimentation part 22, the overflow weir 23 provided in the downstream of the sedimentation part 22, and the sediment water outlet 24.

A sludge collection hopper 25 is formed at an upstream side of the sedimentation part 22, and a sludge discharge hopper 26 is installed below the sedimentation inlet rectifying wall 21, and the sludge collection hopper ( The sludge discharge valve 27 is installed between the 25 and the sludge discharge port 26.

In addition, between the upper end of both side walls (20a, 20a) of the sedimentation basin 20 to allow the worker to cross the sedimentation basin 20, and to reinforce the strength of both side walls (20a, 20a) of the sedimentation basin 20 Work way 28 is connected. Walkway railings 29 are erected on both sides of the upper surface of the walkway 28.

The sedimentation unit 22 is provided with a suspended solids collecting means 30 for collecting and removing suspended solids floating in the form of a scum on the water surface.

The suspended solids collecting means 30 is at least one pair of suspended solids collecting guide plate that defines both sides of the suspended solids collecting space (S) is wider upstream and gradually narrower toward the downstream as shown in Figs. 31 and a floating material collecting trough 32 which connects and installs the downstream side of the floating material collecting guide plate 31 to form a floating material collecting unit 33.

The suspended solids collection plate 31 and the suspended solids collecting trough 32 are formed of a stainless steel plate, and the lower edge thereof is lower than the highest water level HWL of the sedimentation basin 20 and the upper edge thereof is higher than the highest water level HWL. Installed in a high state.

In addition, the floating material collection guide plate 31 has a plurality of water holes 31a formed in the lower half lower than the highest water level HWL, except for the upper half higher than the highest water level HWP, as shown in FIG. 4.

The floating material collection guide plate 31 may be installed only in pairs in the total width of the sedimentation basin 20, but in order to increase the effect of collecting the suspended substances in consideration of the width of the sedimentation basin 20, it may be provided in several pairs (two pairs in the example). It is desirable to install.

The suspended solids collection guide plate 31 is fixed to the lower end of the guide collecting plate fixing bracket 34 suspended from the upper end is fixed to the work way 28 as shown in FIG.

Upstream side of the suspended solids collecting means 30 is provided with a suspended solids collection promoting means 40 for forcibly moving the suspended solids suspended in the sedimentation basin 20 toward the suspended solids collecting guide plate 31.

The floating material collection facilitating means 40 includes a pressure water main pipe 41 installed over the full width between both side walls 20a and 20a of the sedimentation basin 20 upstream of the floating material, and the pressure water main pipe 41. A plurality of pressure water injection nozzles 42 which are installed in the air and supply the pressure water to the floating material side downstream, a pressure water supply pipe 45 for supplying pressure water to the pressure water main pipe 41, and the pressure water main pipe A pressure water control valve 46 is provided between the 41 and the pressure water supply pipe 45.

In the installation of the pressure water injection nozzle 42 in the pressure water main pipe 41, a screw hole may be formed in the pressure water main pipe 41, and the pressure water injection nozzle 42 may be screwed into the screw hole. However, as shown in the example, it is preferable to divide the pressure water main pipe 41 into a plurality and connect them with the T-type pipe joints 43 to couple the pressure water injection nozzles 42 to the respective T-type pipe joints 43. Do.

In addition, between the pressure water injection nozzle 42 and the T-shaped pipe joint 43 is provided with a pressure water injection pressure control valve 44 for adjusting the pressure of the pressure water injected from the pressure water injection nozzle 42 It is preferable.

The pressure water main 41 is installed at a position higher than the highest water level HWL of the sedimentation basin 20, and the pressure water injection nozzle 42 is downstream of the pressure water injection angle as shown in FIGS. It is installed to be inclined downward with respect to the side.

The pressure water control valve 46 is installed in the pressure water valve chamber 47 formed on one side wall 20a of the settling basin 20.

The pressure water main pipe 41 is supported by a pressure water main pipe support hole 48 which is fixed to the bottom of the work way 28 and extends upstream.

In supporting the pressure water main pipe 41 in the pressure water main support port 48, a U-shaped fastener 49 having a U-shaped bolt and a nut fastened thereto is used.

Floating material removal means 50 for removing the floating material collected in the floating material collecting unit 33 in the lower center of the floating material collecting unit 33 constituting the floating material collecting means 33 This is installed.

The suspended matter removing means 50 is installed vertically at the center lower portion of the suspended solids collecting part 33 as illustrated in FIGS. 1 to 8, and an upper end thereof is disposed at a position lower than the highest water level HWL. It is configured to include a floating material uptake pipe 51 having a type upstream outlet 51a.

The suspended material overflow pipe 51 may be fixed directly to the fixing bracket 52 which is fixed to both side walls (20a, 20a) of the settling basin (20) extending to the center, as shown in the example, fixed bracket 52 It is preferable to couple to the lifting height adjustment fixing pipe 53 to be lifted.

In order to adjust the height of the suspended material of the suspended material pipe 51, the threaded portion 51b is formed on the outer circumferential surface of the suspended material suspended pipe 51, and the threaded portion 53a is formed on the inner circumferential surface of the fixed pipe 53 for adjusting the height of the suspended material. By turning the suspended solids upstream pipe 51 to the left and right it is preferable to be able to adjust the height of the overflow of the suspended material upflow pipe 51.

In order to turn the floating material overflow pipe 51 to the left and right, the cross-shaped rib 54 is fixed inside the trumpet-shaped overflow port 51a, and an intermediate part is fixed to the walkway 28. By fixing the lower end of the moon height adjustment rod 55 rotatably supported by (57) by turning the moon height adjustment rod 55 to the left and right, it is possible to turn the suspended matter flow pipe 51 to the left and right. .

The upper height of the moon height adjustment rod 55 is set to a height that allows the operator to easily grasp the handle 56 of the upper end on the walkway (28).

At the lower end of the floating material removing means 50, floating material discharge means 60 for discharging the removed floating material is installed.

As shown in Figure 1, Figures 3 to 8, the suspended solids discharging means 60, the suspended solids underground discharge pipe 61 is connected to the lower end of the stationary wall height adjustment fixed pipe 53, and the sedimentation basin 20 Floating material collecting manhole 62 formed on both side walls (20a) of the floating material connected to the ground discharge pipe 61 and the suspended solids connected to the floating material collecting manhole 62 to discharge the floating material to the ground. It is established by the external discharge pipe (63).

Hereinafter, a method for removing suspended solids by the suspended solids removing device in the drug settling battery according to the present invention will be described.

First, as in the conventional medicine settling method, when the chemically mixed raw water is introduced into the flocculation paper 14 through the floc forming paper inlet 11, the inlet 12, and the inlet rectifying wall 13, As the coagulant aggregates from the first coagulation paper 14a, the micro floc grows into a giant floc, and then flows into the second coagulation paper 14b through the water channel 16a formed at the lower end of the first reservoir wall 15a, and continues to be huge. It grows into a floc, and flows over the upper end of the second storage wall 15b again to the third flocculation paper 14c and grows again into a large floc.

The large floc in the third flocculation paper 14c flows out to the settling basin 20 through the floating material outlet 17 formed at the upper end of the third storage wall 15c, and the win water is the lower end of the third storage wall 15c. It flows into the sedimentation basin 20 through the water channel 16c and the sedimentation basal inlet rectifying wall 21 formed in the.

On the other hand, the raw water introduced into the sedimentation basin 20 is subjected to the precipitation process, and as the sedimentation in the sedimentation basin 20 proceeds, the precipitated sludge is collected into the sludge collection hopper 25 by a sludge scraper (not shown) and the like. When a certain amount is collected to open the discharge valve 26 to be discharged through the sludge discharge basin (27).

In addition, the sedimentation water precipitated in the sedimentation basin 20 is discharged to a rapid filter (not shown) through the sedimentation outlet 24.

This process is the same as for a conventional drug settler.

On the other hand, scum-like floating material (F) introduced into the sedimentation basin 20 will flow in a state floating on the water surface of the sedimentation basin (20).

Floating material (F) floating while floating on the water surface of the sedimentation basin 20 is guided by the floating material collection guide plate 31 is gradually collected when it reaches the upstream end of the floating material collection guide plate 31.

At this time, the floating material collection guide plate 31 is installed with its lower edge lower than the highest water level (HWL) of the sedimentation basin 20, and its upper edge is higher than the highest water level (HWL), and the upper half higher than the highest water level (HWP). Except for this, since a number of flowing holes 31a are drilled in the lower half lower than the HWL, the suspended solids floating on the HWL are guided by the upper half, and the water below the HWL is flowed. Since it flows through the ball 31a, it does not interfere with the flow of raw water.

When the suspended solids guided by the suspended solids collection guide plate 31 reaches the downstream end of the suspended solids collection guide plate 31, the suspended solids collecting unit 33 is collected by the suspended solids collecting unit 33 formed by the suspended solids collecting container 32. .

The suspended solids collected in the suspended solids collecting unit 33 flows through the trumpet-shaped outlet 51a located at the lower portion thereof and flows into the suspended solids overflow pipe 51.

At this time, since the suspended matter overflow pipe 51 is installed to be adjustable in height, the suspended matter flow can be smoothly adjusted by interlocking with the water level of the sedimentation basin 20 and the collection height of the suspended matter. have.

Here, in adjusting the height of the moon flow of the suspended material flow pipe 51, if the handle 56 formed on the upper end of the moon height adjustment rod 55 is turned to the left and right, the bottom of the moon height adjustment rod 55 is rib ( 54 is fixedly connected to the suspended solids upstream pipe 51, so that the suspended solids upstream pipe 51 is turned to the left and right, and accordingly, the threaded portion 51b of the suspended solids upstream pipe 51 and the fixed height for adjusting the overflow height ( By the screw action of the screw portion (53a) of 53) as the floating material overflow pipe 51 is raised and lowered the height of the overflow.

The suspended solids suspended in the suspended solids flow pipe 51 are transferred to the suspended solids collecting manhole 62 through the suspended solids underground discharge pipe 61 connected to the fixed flow height adjustment pipe 53, where the suspended solids external discharge pipe 63 is located. ) Is discharged to the outside.

Suspended matter suspended in the suspended material suspended pipe 51 can be smoothly discharged through the suspended material suspended pipe 51 and the suspended solids discharge pipe 61 and the suspended solids discharge pipe 63.

On the other hand, the floating floc in the form of a large floc is not good fluidity may not be smoothly guided by the floating material collection guide plate 31, in this case, pressure water injection of the floating material collection promoting means 40 By spraying the pressure water through the nozzle 42, the floating material flows actively, thereby facilitating the collection of the floating material.

That is, when the pressure water control valve 46 is adjusted so that the pressure water supplied from the pressure water supply pipe 45 is supplied to the pressure water main pipe 41, a plurality of pressure water injection nozzles 42 installed in the pressure water main pipe 41 are provided. Through the pressure water is injected to push the floating material downstream to facilitate the flow and collection of the floating material.

At this time, since the pressure water is injected at an angle inclined downward toward the downstream side, the floating material is smoothly flowed to the downstream side without scattering the floating material.

In addition, by adjusting the injection pressure injected from the pressure water injection nozzle 42 by the pressure water injection pressure control valve 44, it is possible to maintain the flow and collection of suspended solids in an optimal state.

As described above, according to the present invention, the suspended solids collection guide plate and the suspended solids collecting unit are installed on the surface of the sedimentation basin to collect the suspended solids flowing on the surface of the sedimentation basin and discharge them to the outside. It will work smoothly. In addition, since the pressure water is injected to the suspended solids floating on the surface of the sedimentation basin to facilitate the collection of the suspended solids, the suspended solids are collected and removed so smoothly. In addition, by connecting the two side walls of the sedimentation basin with the walkway, it is possible to reinforce the strength of both sides of the wall as well as to allow workers to traverse the sedimentation basin and to carry out the work on it.

Claims (2)

The floating material collection guide plate is disposed so that the upstream side is wider and narrower gradually toward the downstream side of the chemical immersion battery, and the upper half is positioned above the water surface of the sedimentation water and the lower half is located below the water surface to form a floating material collection space. Floating material collecting means having a floating material collecting trough forming a floating material collecting part at a downstream end of the floating material collecting guide plate; Floating material removal means installed in a central lower portion of the suspended solids collecting unit of the suspended solids collecting means and having a floating material overflow pipe at the upper end of which a trumpet-shaped overflow hole is located at the highest level of the sedimentation basin; And floating material discharge means connected to the floating material overflow pipe of the floating material removing means for discharging the floating material to the outside. The method of claim 1, wherein the suspended material suspended pipe of the suspended material removing means is screwed to the fixed height for adjusting the height of the month fixed to the sedimentation basin is configured to adjust the height of the overflow by turning the suspended material suspended pipe left and right. Apparatus for removing suspended solids in the chemical needle battery.