KR100998518B1 - installation structure of overflow weir for sedimentation tank - Google Patents

Abstract

The present invention allows to adjust the horizontal state of the overflow weir installed in the sedimentation tank of the sewage and wastewater treatment facility so that the supernatant inflow can be made uniformly through the front, rear, left and right sides of the overflow weir (overflow weir) It relates to the structure of the monthly weir installation of the sedimentation tank.

Monthly weir installation structure of the settling tank according to the present invention,

The sewage and wastewater inflow pipe 11 through which the wastewater from the previous treatment tank flows in the upper center of the inner side is provided, and the settling tank 10 provided with the scraper 12 for collecting the sludge deposited on the inner bottom thereof. The support piece 13 which has the through-hole 13a in which the spiral 13b was formed in front and protrudes toward the center in the upper end part of the four inner surfaces is provided,

The outer wall 21 in which the continuous 'V' grooves 21a are formed, the inner wall 22 facing the outer wall 21 at regular intervals, and the bottom plate extending from the lower end of the outer wall 21 to the lower end of the inner wall 22 ( 23) and the inner wall 22 of the four sides of the overflow weir 20 provided with a discharge pipe 24 for discharging the supernatant water stored in the space between the outer wall 21 and the inner wall 22 to the outside under one side outer wall 21. A fixing piece 25 having a through hole 25a in front is provided while protruding to the center portion on the outer surface,

The rotating handle 31 is provided at the upper end, and the rotating shaft 30 having the spiral 31a formed on the outer circumferential surface thereof has a fixing piece of the through hole 13a and the overflow weir 20 provided with the supporting piece 13 of the settling tank 10 ( It is characterized in that it is coupled to penetrate the through-hole 25a provided in 25).

Wastewater, sludge, sedimentation tank, overflow weir, support piece, fixed piece, rotating shaft, spiral, lever, supernatant, horizontal, adjustment

Description

Overflow weir of sedimentation tank installation structure of overflow weir for sedimentation tank}

The present invention relates to a monthly weir provided in the sedimentation tank of the sewage and wastewater treatment facility, and more particularly, by adjusting the horizontal state of the original weir installed in the sedimentation tank, the inflow of the supernatant from which the sludge is removed is transferred to the overflow of the weir. The present invention relates to a wall weir installation structure of a sedimentation tank so as to be uniform in all directions in the rear, left, and right sides.

Facilities for the treatment of sewage and waste water are usually composed of a collection tank, a physical and chemical treatment tank, a biological treatment tank, a sedimentation tank, and a discharge tank.

In such a wastewater treatment facility, the sedimentation tank traps the wastewater introduced into the sewage for a long time to settle and remove the sludge contained in the wastewater. Since it maintains the state, the upper part of the inside of the sedimentation tank is provided with a monthly weir to allow only the supernatant to flow, and the supernatant introduced into the monthly weir is supplied to another treatment tank.

The wall weir provided in the sedimentation tank has an outer wall where a continuous 'V' groove is formed, an inner wall facing the outer wall at regular intervals, a bottom plate extending from the lower end of the outer wall to the lower inner wall, and provided at the center of one inner wall of the outer wall and inner wall. It is made of a discharge pipe for discharging the supernatant stored in the storage between the outside, conventionally coupled to one end of the support rod 40 to the outer wall 21 'of the four-way weir (20') as shown in Figure 5 By fixing the other end of each support rod 40 to the inner surface of the settling tank (10 ') has been installed on the overflow weir (20') in the settling tank (10 ').

The installation structure of the overflow weir 20 'of the sedimentation tank 10' through the existing support rod 40 is possible to recover the supernatant water having reached a predetermined level through the overflow weir 20 '. 20 ') installation state has elapsed for a long time or the maintenance bar 40 is turned by the load by the manager or the manager's entry into the overflow weir (20') for maintenance of the overflow weir (20 ') Since the horizontal state of the overflow weir (20 ') can be shifted, the inflow of the supernatant could be biased to one side of the overflow weir (20'), so that the recovery of the supernatant was not smooth, and the supernatant was biased to one side. In the process of flowing into the overflow weir (20 ') by the flow to the one side of the sewage and waste water stored in the sedimentation tank (10') occurred, the sludge that was in the sedimentation state could be resuspended (10) There was a problem that the sedimentation effect at ') is reduced.

The present invention has been made in view of the above situation, by allowing the control of the horizontal state of the original flow weir installed in the sedimentation tank to allow the inflow of the supernatant water from which the sludge is removed before, after, left and right of the overflow weir. The purpose is to provide a wall weir installation structure of the sedimentation tank to be made uniformly through.

Monthly weir installation structure of the settling tank according to the present invention for achieving the above object,

The wastewater inflow pipe into which the wastewater from the previous treatment tank flows is provided in the upper center of the inner side, and the scraper for the collection of the sludge deposited on the inner bottom is provided. While being provided with a support piece having a through-hole formed in the front spiral,

An outer wall with a continuous 'V' groove, an inner wall facing the outer wall at regular intervals, a bottom plate extending from the lower end of the outer wall to the lower inner wall, and a supernatant stored in the space between the outer wall and the inner wall at the lower side of the outer wall to the outside The fixing piece is provided with a through-hole in the front while protruding toward the center portion on the outer surface of the inner wall of the four-way weir provided discharge pipe,

Rotating handle is provided at the top, the rotating shaft is formed on the outer circumferential surface is characterized in that coupled to penetrate through the through hole provided in the support piece of the settling tank and the fixed piece of the weir flow weir.

Wall weir installation structure of the sedimentation tank according to the present invention is rotated by the rotation of the rotary knob coupled through the through hole provided in the support piece of the sedimentation tank and the fixed piece of the weir flow weirs, the up and down weir As it is possible to raise the one side that has fallen to the bottom or lower one side that rises to the upper side to adjust the overflow weir, so that the inflow of the supernatant can be made uniformly through the overflow weir in all directions Therefore, the recovery of the supernatant can be made smoothly, and the flow of the wastewater stored in the sedimentation tank can be minimized during the inflow of the supernatant, thereby preventing resuspension of the precipitated sludge.

Hereinafter, with reference to the accompanying drawings in more detail as follows.

1 is a perspective view illustrating main parts of the weir installation structure of the sedimentation tank according to the present invention, FIG. 2 is a cross-sectional view for explaining the weir installation structure of the sedimentation tank according to the present invention, and FIG. Figure 4 is a cross-sectional view for explaining the coupling form of the rotary shaft in the weir installation structure, Figure 4 is an operating state diagram for explaining the horizontal adjustment of the weir through the weir installation structure of the settling tank according to the present invention.

As shown in Figure 1 and Figure 2, the weir installation structure of the sedimentation tank according to the present invention consists of a sedimentation tank 10, the overflow weir 20, and the rotating shaft 30.

The sedimentation tank 10 is provided with a sewage and wastewater inflow pipe 11 through which wastewater from the previous treatment tank flows into the upper center of the inner side, and a scraper 12 for collecting the sludge deposited on the inner bottom thereof is provided. The support piece 13 provided with the through-hole 13a in which the spiral 13b was formed in front is provided, protruding toward the center in the upper end part of the four sides inner surfaces.

The sewage and wastewater inlet pipe 11 and the scraper 12 in such a sedimentation tank 10 may be any type of ordinary wastewater and wastewater inlet pipe and scraper provided in the sedimentation tank of the sewage and wastewater treatment facility. Is omitted.

On the other hand, since the support piece 13 provided on all four inner surfaces of the settling tank 10 should be able to firmly support the overflow weir 20, one end of the support piece 13 to support the load of the overflow weir 20 or more. It is preferable to fix to the inner surface of the settling tank 10 with an anchor or bolt.

The overflow weir 20 is provided with an outer wall 21 in which continuous 'V' grooves 21a are formed, and an inner wall 22 facing the outer wall 21 at regular intervals is provided, and the lower end of the outer wall 21 is provided. The bottom plate 23 which extends from the inner wall 22 to the lower end is provided, and the discharge pipe 24 for discharging the supernatant water stored in the space between the outer wall 21 and the inner wall 22 to the lower side of the outer wall 21 is provided to the outside. It is provided, the fixing piece 25 having a through hole 25a in front is provided while protruding to the center portion on the outer surface of the inner wall 22 on all sides.

Since the fixing piece 25 in the overflow weir 20 should be able to firmly support the overflow weir 20 itself, one end of the fixing piece 25 so as to support the load of the overflow weir 20 or more. It is preferable to weld or bolt to the inner wall 22 of the (20).

On the other hand, the through hole (25a) provided in the fixing piece 25 of the overflow weir (20) has a diameter equal to the diameter of the through hole (13a) formed in the support piece 13 of the settling tank 10, the settling tank (10) Vertical lower portion of the through hole (13a) formed in the support piece 13 of the settling tank 10 so that the rotating shaft (30) passing through the through hole (13a) formed in the support piece 13 of It is located in

The rotary shaft 30 is provided with a rotary knob 31 at the upper end, helix 30a is formed on the outer peripheral surface.

As shown in FIG. 3, the rotating shaft 30 includes a through hole 13a formed in the support piece 13 of the settling tank 10 and a through hole 25a formed in the fixed piece 25 of the overflow weir 20. It is coupled through and the nut 32 is fastened to the lower end in the engaged state.

Here, it is preferable that the nut 32 coupled to the lower end of the rotation shaft 30 is treated to prevent loosening by welding or the like so as to stably maintain the engaged state of the rotation shaft 30.

Wall weir installation structure of the settling tank according to the present invention as described above to enable horizontal adjustment of the weir flow weir (20).

This will be described in detail as follows.

The wastewater supplied from the previous treatment tank is introduced through the wastewater inflow pipe 11 of the sedimentation tank 10 and stored in the sedimentation tank 10.

In the process of storing the sewage and wastewater in the sedimentation tank 10, the storage level of the sewage and wastewater rises and at the same time the sediment of sludge contained in the sewage and sewage is formed, and the storage level of the sedimentation tank 10 is the overflow weir (20). When the height of the 'V' groove (21a) formed in the outer wall 21 of the () or more, the upper water flows into the inside of the overflow weir 20 through the 'V' groove (21a) is provided on one side wall (21) Outflow is made through the discharge pipe 24 to another adjacent treatment tank.

At this time, when the horizontal state of the overflow weir (20) is shifted, the inflow of the supernatant is not uniformly made in all four sides of the overflow weir (20) is biased toward one side of the overflow weir (20) biased to the lower because the supernatant water is not smoothly recovered It is desirable to adjust the overflow weir 20 in a horizontal state.

In the wall weir installation structure of the sedimentation tank according to the present invention, the weir flow weir 20 is a rotating shaft for coupling through the support piece 13 provided in the sedimentation tank 10 and the fixing piece 25 provided in the inner wall 22 of the sedimentation tank 10. When the rotary shaft 30 is rotated by being supported by the 30, the overflow weir 20 is formed by engaging the spiral 30a of the rotary shaft 30 and the spiral 13b formed in the through hole 13a of the support piece 13. It is possible to raise and lower the bar by the rotation of the rotary shaft 30 can be adjusted to the horizontal weir 20 in a horizontal state.

That is, as shown in FIG. 4a, when one side of the weir flows down to the lower side, the rotary shaft 30 is rotated counterclockwise when the rotary knob 31 of the rotary shaft 30 provided in the downwardly biased direction is rotated counterclockwise. Rotating and the rotating shaft 30 itself rises, the lower end of the rotating shaft 30 passing through the fixing piece 25 of the weir flow 20, the nut 32 is prevented from loosening, the rotating shaft 30 In the process of rising), the upper surface of the nut 32 is caught around the through hole 25a formed in the fixed piece 25 of the overflow weir 20, so that the fixed piece 25 itself is lifted. This will be able to adjust the horizontal side of the upstream weir (20) that was lifted down to the bottom.

On the contrary, when one side rises to the upper side of the weir 20, the rotary shaft 30 rotates clockwise when the rotary knob 31 of the rotary shaft 30 provided in the upward direction rises upward and the rotary shaft 30 itself rotates. Is lowered, in the course of the rotating shaft 30 descends the fixed piece 25 of the overflow weir 20 is lowered by the falling height of the rotation shaft 30 by the load of the overflow weir 20 itself as a result One side of the overflow weir (20) soared to be to be adjusted to a horizontal state.

Monthly weir installation structure of the sedimentation tank according to the present invention so that the inflow of the supernatant water through the horizontal adjustment of the monthly weir (20) as described above can be made uniformly in all four sides of the monthly weir (20), the recovery of the supernatant smoothly In addition to being able to be made, it is possible to minimize the flow due to the deflected flow to one side of the waste water stored in the sedimentation tank 10 in the supernatant inflow process will be able to prevent the re-injury of the precipitated sludge.

Since the present invention as described above is not limited to the above-described embodiments, it can be changed within the scope not departing from the gist of the present invention claimed in the claims, such changes are within the claims described.

Figure 1 is a perspective view of the main part for explaining the weir installation structure of the settling tank according to the present invention

Figure 2 is a cross-sectional view for explaining the weir installation structure of the overflow weir according to the present invention

Figure 3 is a cross-sectional view for explaining the coupling form of the rotary shaft in the monthly weir installation structure of the settling tank according to the present invention

Figure 4 is an operating state diagram for explaining the horizontal adjustment of the weir flows through the weir installation structure of the settling tank according to the present invention

Figure 5 is a cross-sectional view showing the installation of the monthly weir of the existing sedimentation tank

 <Explanation of symbols for the main parts of the drawings>

10, 10 ': sedimentation tank 11: wastewater inflow pipe

12: scraper 13: support piece

13a: through hole 13b: spiral

20, 20 ': Overflow weir 21, 21': Outer wall

21a: 'v' groove 22: inner wall

23: bottom plate 24: discharge pipe

25: fixed piece 25a: through hole

30: rotation axis 30a: spiral

31: rotation knob 32: nut

40: support bar

Claims (4)

The wastewater inflow pipe into which the wastewater from the previous treatment tank flows is provided in the upper center of the inner side, and the scraper for the collection of the sludge deposited on the inner bottom is provided. While being provided with a support piece having a through-hole formed in the front spiral, An outer wall with a continuous 'V' groove, an inner wall facing the outer wall at regular intervals, a bottom plate extending from the lower end of the outer wall to the lower inner wall, and a supernatant stored in the space between the outer wall and the inner wall at the lower side of the outer wall to the outside The fixing piece is provided with a through-hole in the front while protruding toward the center portion on the outer surface of the inner wall of the four-way weir provided discharge pipe, Swivel weir installation structure of the sedimentation tank is provided, the rotary handle is provided, the rotating shaft formed on the outer circumferential surface is coupled to pass through the through hole provided in the support piece of the settling tank and the through hole provided in the fixed piece of the weir flow weir. The method of claim 1, The support piece provided in the settling tank is a weir installation structure of the settling tank characterized in that the bolt or anchor is fixed to the inner wall of the settling tank. The method of claim 1, The through-holes formed on the fixed piece of the weir flow we have the same diameter as the through-holes formed in the support piece of the sedimentation tank, install the overflow weir of the sedimentation tank, characterized in that formed in the vertical lower portion of the through-holes formed in the support piece of the sedimentation tank rescue. The method of claim 1, The fixing piece of the overflow weir is a weir installation structure of the sedimentation tank, characterized in that coupled to the inner wall of the overflow weir by welding or bolting.

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