WO2012167486A1 - 装填水平管沉淀分离装置的沉淀池 - Google Patents

装填水平管沉淀分离装置的沉淀池 Download PDF

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Publication number
WO2012167486A1
WO2012167486A1 PCT/CN2011/077527 CN2011077527W WO2012167486A1 WO 2012167486 A1 WO2012167486 A1 WO 2012167486A1 CN 2011077527 W CN2011077527 W CN 2011077527W WO 2012167486 A1 WO2012167486 A1 WO 2012167486A1
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WO
WIPO (PCT)
Prior art keywords
water
sedimentation
plate
tank
water flow
Prior art date
Application number
PCT/CN2011/077527
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English (en)
French (fr)
Chinese (zh)
Inventor
张建国
张良纯
Original Assignee
珠海九通水务有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海九通水务有限公司 filed Critical 珠海九通水务有限公司
Priority to BR112013018543A priority Critical patent/BR112013018543A2/pt
Publication of WO2012167486A1 publication Critical patent/WO2012167486A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0045—Plurality of essentially parallel plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0063—Settling tanks provided with contact surfaces, e.g. baffles, particles with cross-flow flow direction of liquid and solid particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B01D21/2416—Liquid distributors with a plurality of feed points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid

Definitions

  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the water flow velocity on the water inlet section of the sedimentation device is unevenly distributed, which is not conducive to the sedimentation device.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the water collecting area 6 is provided with a water collecting tank 5 and a water collecting plate 13.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 sloping plates 41, 42 by a plurality of water flow passages having a semi-closed parallelogram in cross section.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the above embodiment is only a preferred embodiment of the present invention, and there may be more changes in practical applications.
  • the angle B of the bucket is other angles, such as a range of 60 degrees to 100 degrees.
  • 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.
  • 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.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sewage (AREA)
PCT/CN2011/077527 2011-06-07 2011-07-25 装填水平管沉淀分离装置的沉淀池 WO2012167486A1 (zh)

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BR112013018543A BR112013018543A2 (pt) 2011-06-07 2011-07-25 célula de sedimentação para dispositivo de separação de sedimentação de tubo horizontal

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CN201110151083.0 2011-06-07
CN2011101510830A CN102284200A (zh) 2011-06-07 2011-06-07 装填水平管沉淀分离装置的沉淀池

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CN104307217A (zh) * 2014-10-28 2015-01-28 曾承旺 具有斜板助降结构的渠式浓密机
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CN103882866B (zh) * 2014-03-28 2015-10-28 上海山顺土木工程技术有限公司 立式泥浆存储分离系统
CN103882866A (zh) * 2014-03-28 2014-06-25 上海山顺土木工程技术有限公司 立式泥浆存储分离系统
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