WO2012167486A1

WO2012167486A1 - Sedimentation tank provided with horizontal pipe sediment separation device

Info

Publication number: WO2012167486A1
Application number: PCT/CN2011/077527
Authority: WO
Inventors: 张建国; 张良纯
Original assignee: 珠海九通水务有限公司
Priority date: 2011-06-07
Filing date: 2011-07-25
Publication date: 2012-12-13
Also published as: CN102284200A; TW201249521A; BR112013018543A2

Abstract

Disclosed is a sedimentation tank provided with a horizontal pipe sediment separation device, which comprises a tank body (1) having a water inlet (8) and a water outlet (7), a sedimentation device (4) arranged in a water channel in the tank body between the water inlet and the water outlet, a mud discharging hopper (11) arranged in the tank body and located right below the sedimentation device, a water distributing plate (9) provided with water holes (91) and disposed in a water channel from the water inlet to the sedimentation device, and water collecting devices (5, 13) provided with water holes (51) and disposed in a water channel from the sedimentation device to the water outlet.

Description

Sedimentation tank for filling horizontal pipe sedimentation separation device

Technical field

The invention relates to a feed water treatment device, in particular to a sedimentation tank for filling a horizontal pipe sedimentation separation device. The present invention is based on a Chinese invention patent application filed on Jun. 07, 2011, the number of which is hereby incorporated by reference.

Background technique

The water treatment of tap water includes four conventional processes of coagulation, sedimentation, filtration and disinfection, wherein the precipitation process is carried out in a sedimentation tank, and the coagulated water is subjected to precipitation treatment to obtain clean water. Generally, the structure of the sedimentation tank comprises: a tank body with a water inlet and a water outlet, and a flow device is provided in the flow direction from the water inlet to the water outlet, and a sedimentation device is arranged in the middle of the tank body, and the sedimentation device is arranged to make the water flowing in from the water inlet It must pass through the sedimentation device to reach the water outlet to achieve water purification and sedimentation. A drain hopper is arranged at the bottom of the tank body located below the sedimentation device. After the water flows into the pool body from the water inlet, it is precipitated in the sedimentation device, and the sludge is discharged from the mud hopper, and the water is discharged from the water outlet.

Fig. 6 shows a horizontal tube precipitation separation device disclosed by the applicant in the patent document No. CN100551482C, that is, a sedimentation device 4, which is mainly composed of a swash plate and a separator. The utility model comprises a plurality of sets of parallel inclined plates, each set of inclined plates is composed of an upper inclined plate 41 and a lower inclined plate 42, and a plurality of partition plates 43 are arranged between the upper and lower

inclined plates

41, 42, and each of the partition plates 43 is from above. Downwardly intersecting the upper and

lower sloping plates

41, 42, respectively, the intersection line 47 of each of the partition plates 43 of the lower sloping plate 42 is on a horizontal plane. An elongated discharge port 45 extending in the horizontal direction is opened above each intersection line 47 of the lower swash plate 42. A drain passage 46 is formed between the lower swash plate 42 and the upper swash plate 41 of the adjacent other slant plate, and a seal end plate 44 is provided on at least one end surface of the sludge passage 46 in the water flow direction.

Referring to Figure 7, Figure 7 is a cross-sectional view of the sedimentation apparatus in the direction of vertical water flow. The partition plate 43 partitions between the upper and lower

slanting plates

41, 42 by a plurality of parallelogram-shaped water flow passages having a semi-closed cross section. When the water flows through the water flow passage in the sedimentation device, the suspended matter continuously precipitates under its own gravity and slides down the lower sloping plate 42 and the partition plate 43, enters the sludge discharge passage 46 from the discharge port 45, and then enters the discharge passage from the sludge discharge passage 46. The mud is discharged and the direction indicated by the arrow in Fig. 7 is the sediment precipitation direction. Due to the presence of the sealed end plate 44, the mud channel 46 can be considered as a still water area where water does not flow from the water inlet to the water outlet, and the sediment is not washed and agitated, and the sedimentation effect is good.

technical problem

At present, the precipitation process is carried out in a sedimentation tank equipped with a sedimentation device. The distance from the water inlet to the sedimentation device is short. When the water flow enters from the relatively small cross-section water inlet to reach the relatively large section of the sedimentation device, the water flow velocity on the water inlet section of the sedimentation device is unevenly distributed, which is not conducive to the sedimentation device. Precipitation work; and when the water flow is discharged from the sedimentation device, there is a flow of water from the relatively large section of the sedimentation device to the relatively small cross-section of the water outlet on the side of the sedimentation tank, which in turn affects the sedimentation of the sedimentation device. effectiveness.

Technical solution

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a sedimentation tank for a filling horizontal pipe sedimentation separation device for increasing the uniformity of water flow velocity at the upstream and downstream sections of a horizontal pipe sedimentation separation device.

Another object of the present invention is to provide a sedimentation tank for smooth filling of a horizontal pipe sedimentation separation device.

In order to achieve the above object, the present invention provides a sedimentation tank for a horizontal pipe sedimentation separation device, comprising a pool body having a water inlet and a water outlet; a sedimentation device, the sedimentation device being disposed in the pool body from the water inlet to the water outlet Between the water flow channels; the mud hopper is disposed in the pool body and located directly below the sedimentation device; the water distribution plate, the water distribution plate is provided with a plurality of water holes and is disposed between the water inlet and the sedimentation device On the channel; the water collecting device, the water collecting device is provided with a plurality of water holes and is disposed on the water flow channel between the self-precipitating device and the water outlet.

A specific solution is that the bottom of the water flow passage from the water inlet to the sedimentation device is inclined from top to bottom; the bottom of the water flow passage from the sedimentation device to the water outlet is inclined from bottom to top. In use, a small amount of sediment in the water flow outside the sedimentation tank in the sedimentation tank can slide down the inclined bottom to the sedimentation device, and finally enter the sludge discharge tank through the sedimentation device.

Another specific solution is that the angle between the two bottom edges of the bucket is 60 degrees to 100 degrees. This makes it easy for the sediment in the bucket to slide down the inclined inner wall to the bottom of the bucket and eventually drain.

A specific solution is that a plurality of vertical holes are uniformly distributed on the water distribution plate, and the lower end of the vertical hole is an open end; the water collecting device is composed of a water collecting tank and a water collecting plate, and the water collecting tank is uniformly distributed thereon a rectangular box body having an open end surrounded by a plate surface of a circular hole, the water collecting plate is evenly distributed with a plurality of horizontal strip holes, the open end of the water collecting tank abuts on the water collecting plate and the water collecting tank is located in the water collecting The water flow of the plate is on the upstream side. This allows the water entering the water inlet to pass through the vertical hole of the water distribution board, and uniformly distributes the water through the water distribution board, so that the water flow speed on the upstream side of the water flow of the sedimentation device is uniform and stable, and the open end of the lower end of the vertical hole is The design makes a little sediment on the upstream side of the water flow of the water distribution board pass through the sedimentation device smoothly; the water collection tank uniformly collects the clean water flowing out from the sedimentation device, and then the clean water is uniformly discharged from the water hole on the water collecting plate, so that the sedimentation device is The flow velocity on the downstream side of the water flow is uniform and stable, which is conducive to the precipitation of sediment in the sedimentation device.

More specifically, the precipitating device comprises a plurality of sets of inclined plates parallel to the direction of the water flow and parallel to each other, each set of inclined plates being composed of a pair of parallel upper inclined plates and lower inclined plates, each pair of upper and lower inclined plates being arranged There are a plurality of parallel partitions, the partitions intersecting the upper and lower inclined plates respectively from top to bottom, and the intersection line of the partition and the upper and lower inclined plates is in the horizontal plane, and each intersection line on the lower inclined plate is above A long opening extending in a horizontal direction is defined, and a drain passage is formed between the lower inclined plate and the upper inclined plate of the adjacent one of the inclined plates, and at least one end of the both ends of the mud discharging passage extending in the water flow direction is a closed end. The sedimentation device is combined with the water distribution plate, the water collecting tank and the water collecting plate disposed at both ends of the water flow direction of the sedimentation device, so that the horizontal flow of the water flowing through the sedimentation device is uniform and stable, so that the sediment is quickly settled and discharged, thereby improving the sedimentation efficiency.

The specific scheme is that the bottom of the mud bucket is connected with the mud discharging pipe; the mud discharging pipe is provided with a mud discharging valve; the sludge interface device is arranged in the mud discharging bucket; the sludge interface device is electrically connected with the mud discharging valve, and the mud discharging valve is based on the sewage The signal from the mud interface is turned on or off. Through the electric control of the sludge interface meter and the mud discharge valve, the sediment can be discharged in time to avoid excessive siltation in the mud bucket.

Beneficial effect

It can be seen from the above scheme that the water flowing from the water inlet passes through the water hole on the water distribution board, so that the water distribution on the water inlet side of the sedimentation tank is uniform, and the water flow speed is stable; after the sedimentation by the sedimentation device, the clean water passes through the water collecting device. The water hole is discharged, so that the water flow on the water outlet side is uniform, the water flow speed is stable; the water flow at both ends of the sedimentation device is uniform and the water flow is stable, which is favorable for the sedimentation of the sediment in the sedimentation device, so that the sedimentation effect is improved.

DRAWINGS

Figure 1 is a top plan view of an embodiment of the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a schematic plan view of the water distribution plate in a direction perpendicular to the water flow;

Figure 4 is a plan view showing the development of the water collecting tank plate;

Figure 5 is a schematic plan view of the water collecting plate in a direction perpendicular to the flow of water;

Figure 6 is a perspective structural view of a sedimentation device;

Figure 7 is a cross-sectional view of Figure 6 showing the precipitation device in a direction perpendicular to the flow of water.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiments of the invention

Referring to Fig. 1, there is shown a top plan view of a sedimentation tank for a horizontal pipe sedimentation separation apparatus according to an embodiment of the present invention, and the direction indicated by the arrow in Fig. 1 is the direction of water flow. The sedimentation tank has a pool body 1, and the opposite side walls of the tank body 1 are respectively provided with a water inlet 8 and a water outlet 7. In the direction of the water inlet 8 from the water inlet 8 to the water outlet 7, the water distribution zone 2 is a water distribution zone 2, a sedimentation zone 3 and a water collection zone 6, and a water distribution plate 9 is arranged in the water distribution zone 2, and a sedimentation is installed in the sedimentation zone 3. In the device, the water collecting area 6 is provided with a water collecting tank 5 and a water collecting plate 13.

Referring to Fig. 2, the bottom of the water flow passage from the water inlet 8 to the sedimentation device 4 is inclined from top to bottom with an inclination angle of 60 degrees; the bottom of the water flow passage from the sedimentation device to the water outlet is inclined from bottom to top, inclined The angle is 60 degrees. This is a preferred angle of inclination. Obviously, depending on the other parameters of the sedimentation tank, other inclination angles can be used to achieve the purpose of causing the sediment in the water distribution area and the water collection area to descend to the sedimentation area by gravity.

Below the sedimentation device 4 is a drain hopper 11 which is supported by a support frame 12 fixed in the drain hopper 11. The water flow at the top of the mud hopper and the upper portion of the sedimentation tank is separated by a partition 10, and a drain pipe 14 is connected to the bottom of the sludge hopper 11. The angle B between the two bottom edges of the bucket is 80 degrees. The inclination angle A of the partition plate is 60 degrees. It should be noted that the angle A in FIG. 2 is in the range of 60 degrees to 100 degrees, and the inclination angle B is in the range of 10 degrees to 70 degrees to achieve the purpose of improving the precipitation effect.

Referring to Figure 3, Figure 3 is a schematic plan view of the water distribution plate 9 in a direction perpendicular to the flow of water. A plurality of vertical strip holes 91 are uniformly distributed on the rectangular water distribution plate 9 in the longitudinal direction, and the lower end of the vertical strip holes 91 is an open end. The water flows from the vertical hole 91 on the water distribution plate 9 and enters the sedimentation zone 3, and the opening at the lower end of the vertical hole 91 facilitates the passage of sludge which has just settled from the water flow entering the water inlet.

Referring to Figure 4, Figure 4 is a developed plan view of the header plate. 1 and 2, the water collecting tank 5 is a rectangular box body having an open end surrounded by a water collecting tank plate on which the circular holes 51 are uniformly distributed. The clean water discharged from the sedimentation device 4 is uniformly collected through the circular hole 51 in the header tank 5.

Referring to Figure 5, Figure 5 is a schematic plan view of the water collecting plate 13 in a direction perpendicular to the flow of water. A plurality of horizontal strip holes 131 are evenly distributed on the rectangular water collecting plate 13. 2, the open end of the water collecting tank 5 abuts on the water collecting plate 13 and the water collecting tank 5 is located on the upstream side of the water flow of the water collecting plate 13. The clean water collected in the header tank 5 can be uniformly discharged from the horizontal strip holes 131 on the water collecting plate 13 to reach the water outlet 7.

Referring to Fig. 6, Fig. 6 is a structural view of a sedimentation device 4 installed in a sedimentation tank filled with a horizontal pipe sedimentation separation device, and the direction indicated by an arrow in Fig. 6 is a water flow direction. The precipitating device 4 comprises a plurality of sets of parallel inclined plates, each set of inclined plates is composed of an upper inclined plate 41 and a lower inclined plate 42, and a plurality of partition plates 43 are disposed between the upper and lower

inclined plates

41, 42 each of the partition plates 43 The upper end edge intersects the upper slanting plate 41, the lower end edge 43 of each of the partition plates intersects the lower slanting plate 42, and the intersection line 47 of the partition plate 43 and the lower slanting plate 42 are on different horizontal planes. The angle between the upper and

lower slanting plates

41, 42 and the partition plate 43 and the horizontal plane are both 60°, and the partition plate 43 partitions the upper and

lower swash plates

41 and 42 into a plurality of water flow passages having a parallelogram shape in cross section. The upper swash plate 42 has an elongated discharge port 45 extending in the horizontal direction above the intersection line 47 of each of the partition plates 43 and the lower slanting plates 42. The bottom sloping plate 42 is disposed between the lower sloping plate 42 and the upper slanting plate 41 of the adjacent other slanting plate. If it is near the side wall of the pool body, the sloping plate 42 and the side wall are drained. Channel 46. A seal end plate 44 is provided on one end face or both end faces of the mud discharge passage 46 in the direction of the water flow.

sloping plates

41, 42 by a plurality of water flow passages having a semi-closed parallelogram in cross section. When the water flows through the water flow passage in the sedimentation device, the suspended matter continuously precipitates under its own gravity and slides down the lower sloping plate 42 and the partition plate 43, enters the sludge discharge passage 46 from the discharge port 45, and then enters the discharge passage from the sludge discharge passage 46. The bucket 11 is discharged, and the direction indicated by the arrow in Fig. 7 is the sediment precipitation direction. Due to the presence of the sealed end plate 44, the mud discharge passage 46 can be regarded as a still water area where water does not flow from the water inlet to the water outlet, and the sediment is not washed and agitated, and the sediment precipitation effect is good.

A mud discharging valve (not shown) is disposed on the drain pipe 14, a sludge interface device (not shown) is disposed in the mud hopper 11, and the sludge interface device is used for detecting sludge in the mud hopper 11. The amount of the sludge interface device is electrically connected to the mud discharge valve, and the mud discharge valve is opened or closed according to the signal of the sludge interface device. When the sludge in the sludge hopper 11 accumulates to a certain amount, the sludge discharge valve is opened, and the sludge is discharged in time to avoid sludge deposition in the sludge hopper 11 and affect the sedimentation.

In the embodiment, the water flowing from the water inlet passes through the vertical hole of the water distribution board, so that the water flow speed on the upstream side of the water flow of the sedimentation device is uniform and stable; the water flow enters the sedimentation device and flows in the horizontal water flow channel. After the sedimentation and separation of the sludge enters the sludge hopper from the sludge discharge channel; the clean water is uniformly collected by the water collection tank, and then the water is discharged through the horizontal hole of the water collecting plate, so that the water flow velocity on the downstream side of the water flow of the sedimentation device is uniform and stable. The smooth water flow environment makes the precipitation efficiency high in the sedimentation device.

In addition, the drain channel and the water flow channel in the upper part of the sedimentation tank are separated by a partition to prevent the agitation caused by the upper water flow from affecting the sludge discharge process in the sludge dump. Moreover, the bottom of the mud hopper is provided with an inclined surface which is easy to slide, so that the sludge slides into the drain pipe.

Of course, the above embodiment is only a preferred embodiment of the present invention, and there may be more changes in practical applications. For example, the angle B of the bucket is other angles, such as a range of 60 degrees to 100 degrees. Or; the shape of the water hole in the water collecting tank and the water collecting plate has other structures, such as an elliptical shape and a vertical hole, etc., and these changes can also achieve the object of the present invention.

Industrial applicability

The invention passes the incoming water flow from the water hole on the water distribution board, so that the water distribution on the water inlet side of the sedimentation tank is uniform, and the water flow speed is stable; after the sedimentation action of the sedimentation device, the clean water is discharged through the water hole of the water collecting device, The water flow on the water outlet side is uniform, the water flow speed is stable; the water flow at both ends of the sedimentation device is uniform and the water flow is stable, which is favorable for the sedimentation of the sediment in the sedimentation device, so that the sedimentation effect is improved.

Claims

a sedimentation tank for filling a horizontal pipe sedimentation separation device, including

a pool body having a water inlet and a water outlet;

a sedimentation device disposed in the water body passage between the water inlet and the water outlet in the pool body;

a mud hopper disposed in the pool body and located directly below the sedimentation device;

It is characterized by:

a water distribution plate, wherein the water distribution plate is provided with a plurality of water holes and is disposed on a water flow passage from the water inlet to the sedimentation device;

A water collecting device is provided with a plurality of water holes and disposed on a water flow passage from the sedimentation device to the water outlet.
The sedimentation tank for filling a horizontal pipe sedimentation separation device according to claim 1, wherein:

The bottom of the water flow passage from the water inlet to the sedimentation device is inclined from top to bottom;

The bottom of the water flow passage from the sedimentation device to the water outlet is inclined from the bottom to the top.
The sedimentation tank for filling a horizontal pipe sedimentation separation device according to claim 1, wherein:

The angle between the two bottom edges of the mud hopper is 60 degrees to 100 degrees.
The sedimentation tank for filling a horizontal pipe sedimentation separation device according to claim 1, wherein:

The water distribution plate is evenly distributed with a plurality of vertical holes, and the lower end of the vertical hole is an open end;

The water collecting device is composed of a water collecting tank and a water collecting plate, and the water collecting tank is a rectangular box body having an open end surrounded by a plate surface on which a plurality of circular holes are uniformly distributed, and the water collecting plate is A plurality of horizontal strip holes are disposed, the open end of the water collecting tank abuts against the water collecting plate, and the water collecting tank is located on the upstream side of the water flow of the water collecting plate.
The sedimentation tank for filling a horizontal pipe sedimentation separation device according to any one of claims 1 to 4, characterized in that:

The precipitation device includes

a plurality of inclined plates parallel to the direction of the water flow and parallel to each other, wherein each of the inclined plates is composed of a pair of parallel upper inclined plates and lower inclined plates, and each pair of upper and lower inclined plates is provided with a plurality of parallel a partition, each of the partitions respectively intersecting the upper and lower sloping plates from top to bottom, and the intersection line of the partition and the upper and lower sloping plates is in a horizontal plane, and the lower sloping plate An elongated opening extending in a horizontal direction in a longitudinal direction is defined above each intersecting line, and a draining passage is formed between the lower inclined plate and the upper inclined plate of the adjacent set of inclined plates, and the mud discharging channel is along At least one end of the two ends extending in the direction of water flow is a closed end.
The sedimentation tank for filling a horizontal pipe sedimentation separation device according to claim 5, wherein:

The bottom of the mud hopper is connected to the drain pipe;

a mud discharge valve is arranged on the drain pipe;

a sludge interface device is arranged in the mud hopper;

The sludge interface device is electrically connected to the mud discharge valve, and the mud discharge valve is opened or closed according to a signal of the sludge interface device.