WO2021036459A1 - 一种水处理用竖流式沉淀与气浮装置及其工作方法 - Google Patents

一种水处理用竖流式沉淀与气浮装置及其工作方法 Download PDF

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Publication number
WO2021036459A1
WO2021036459A1 PCT/CN2020/098068 CN2020098068W WO2021036459A1 WO 2021036459 A1 WO2021036459 A1 WO 2021036459A1 CN 2020098068 W CN2020098068 W CN 2020098068W WO 2021036459 A1 WO2021036459 A1 WO 2021036459A1
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water
area
pipe
sedimentation
air flotation
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PCT/CN2020/098068
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English (en)
French (fr)
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周碧波
蔡健明
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中清信益环境(南京)有限公司
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Publication of WO2021036459A1 publication Critical patent/WO2021036459A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/007—Modular design

Definitions

  • the present invention relates to the fields of environmental protection and sewage treatment, and more specifically, it relates to an efficient solid-liquid separation device, which is a vertical flow type precipitation and air flotation device for water treatment and its working method.
  • Suspended matter is the blackening factor of the water body, and it is also the inducing factor of the water body's odor. Removal of suspended solids in the water body can effectively solve the problem of black water body and relieve the odorous environmental pressure.
  • the existing solid-liquid separation technology cannot simultaneously solve the solid-liquid separation of suspended solids with large specific gravity and small specific gravity in terms of fluid state and process.
  • the existing design scheme generally has a square shape of the tank body, and the volume utilization rate of the separation zone is low.
  • the existing technology superimposes air flotation technology and sedimentation technology, through adjusting the valve, separate air flotation or sedimentation, but the air flotation and sedimentation cannot be operated at the same time, otherwise the flow state of the system will be turbulent, and the dissolved air flotation water will be released in the sedimentation zone, which will seriously affect the solid Liquid separation effect.
  • there may be unreasonable hydraulic flow patterns which cannot effectively guarantee the good operation of the air flotation process and the precipitation process, and the quality of the effluent water cannot be guaranteed.
  • nanobubbles are used to float up, and the release process of nanobubbles in the water is very slow. After the flocs adhere to the bubbles, the density decreases and the settling speed slows down, reducing the surface load of the sedimentation tank.
  • the Chinese patent with publication number CN208747821U discloses a water treatment device integrating reaction, precipitation, and air flotation, including a reaction tank, a sedimentation tank, a sludge hopper, and an air flotation tank.
  • a sludge hopper is set below the sedimentation tank, and the reaction tank Located above the sedimentation tank and connected by a connecting pipe, the connecting pipe extends to the lower part of the sedimentation tank.
  • the top of the sedimentation tank is provided with a water collection chamber, and an air flotation chamber is provided above the water collection chamber.
  • the air flotation chamber is composed of a contact chamber and a separation chamber.
  • the contact chamber is a hollow pipe structure, the lower end of the contact chamber is fixed on the water collection chamber, the upper end of the contact chamber is connected with dissolved gas water, the lower end of the separation chamber is provided with an air flotation water outlet, and the upper part of the air flotation chamber is provided with a slag discharge Device, the slag discharge device is composed of a slag scraping device and a slag discharge collection device, and the formed scum is scraped into the slag discharge collection device through the slag scraping device.
  • the purpose of the present invention is to provide a vertical flow sedimentation and air flotation device for water treatment and its working method, which has a reasonable structure, clear functional partitions, and subsequent processes are not affected by the previous processes. Stability, high solid-liquid separation efficiency, excellent effluent water quality, etc.
  • a vertical flow type sedimentation and air flotation device for water treatment comprising a pool body, the upper part of the pool body is cylindrical, and the pool body is vertical from bottom to top Arranged with sludge discharge area, inlet water distribution area, sedimentation area, sedimentation effluent steady flow area, air flotation contact area and slag water separation area;
  • the middle of the tank body is provided with a water inlet pipe connected to the water inlet and water distribution area, the water inlet pipe passes through the sedimentation water steady flow area and through the center of the precipitation area, and the end of the water inlet pipe is connected with a diversion cone located in the center of the water inlet water distribution area ;
  • Fillers are arranged inside the sedimentation zone for intercepting flocs in the upward water flow
  • the sedimentation water steady flow zone and the air flotation contact zone are provided with partitions, the bottom of the air flotation contact zone penetrates the middle of the partition, and the top of the sedimentation water steady flow zone is provided with a plurality of radial communication pipes on the same plane and An annular water collecting pipe, the radial connecting pipe and the annular water collecting pipe are provided with multiple sets of perforations, the upward water flow is connected to the radial connecting pipe through the annular water collecting pipe, the radial connecting pipe is connected to the air flotation contact area, and the middle of the pool body is provided with Dissolved gas water pipe connected to the air flotation contact area;
  • the radial connecting pipe is provided with a flocculant replenishing device
  • the bottom of the slag-water separation zone is provided with a water outlet pipe connected to the outside of the tank body, and the top of the slag-water separation zone is provided with a slag scraper and a skimmer driving device.
  • the mixed and flocculated sewage is distributed radially through the central diversion cone, and the flocs with large specific gravity sink to the mud discharge area, and the flocs with small specific gravity follow the water flow through the sedimentation area and are intercepted in the filler. It accumulates to a certain extent and naturally slides down to the mud discharge area. The remaining flocs follow the water flow into the annular water collecting pipe at the upper part of the sedimentation water steady flow area.
  • the annular water collecting pipe is connected with the radial connecting pipe, and the water flows through the middle of the radial connecting pipe.
  • one side of the radial connecting pipe is supplemented with a small amount of flocculant through the flocculant replenishing device.
  • the refluxed dissolved air water merges with the effluent water of the sedimentation tank in the air flotation contact zone and releases the dissolved air; the flocs float up To the surface of the slag-water separation zone, it is scraped and discharged by the slag scraper on the top, and the clean water is discharged through the perforated pipe at the bottom of the air flotation tank.
  • the lower part of the air-floating contact zone is a vertical contact mixing section
  • the upper part is an inclined diffusion section with a diffusion angle of 40°.
  • the height of the inclined diffusion section is greater than the height of the vertical contact mixing section.
  • the design of the air flotation contact area facilitates the full mixing of gas, water and flocs in the contact area, the gas adheres to the flocs, the density is reduced, and scum is formed on the surface.
  • the connecting cone angle of the diversion cone is 150°
  • the diameter of the bottom circle is not less than 4 times that of the water inlet pipe
  • the water distribution is horizontal and in a circular radial shape.
  • the water distribution is as horizontal as possible and in a circular radial shape.
  • the advantage is that the vertical flow sedimentation tank is used to create the flow pattern of the radial flow sedimentation tank, and the particle size and flow field distribution are optimized.
  • the filler is set as a plastic inclined pipe or a plastic inclined plate, the installation angle is 65°-70°, the vertical height is not less than 1.0m, and the top is provided with a reinforced mesh for compressing and anti-floating.
  • the inclined pipe of the packing adopts a pipe diameter of 50mm, or inclined plates, the spacing of the inclined plates is 50mm, the material is plastic, the installation angle is optimally 65° ⁇ 70°, and the vertical height can be optimized to 1.0m ,
  • the top adopts reinforced mesh to press the top to resist floating.
  • the flocculant replenishing device includes a dosing pipe at the beginning of the radial connecting pipe, the dosing pipe is arranged obliquely, and an elongated pipeline mixer is connected behind the dosing pipe.
  • the dosing pipe is used to supplement the flocculant required for air flotation, and the extended pipe mixer is connected after the dosing point to promote the flocculation reaction between the flocs and the medicament.
  • the dosing tube is annular in the tank, and a plurality of ports are evenly distributed to connect with the radial communication tube.
  • the multiple sets of radial communication pipes arranged radially along the center of the air-floating contact zone need to be fully added with flocculant, and the multiple sets of interface dosing pipes can perform dosing and fusion with high efficiency and uniformity. .
  • the slag scraper is a surface rotating type, one end of the slag scraper is connected with the skimmer drive device, a slag hopper is arranged under one side of the slag scraper, the bottom of the slag hopper is inclined, and the inclination angle is not less than 11.25 °, the inclined end of the slag bucket is connected with a slag discharge pipe.
  • the slag scraper is driven by the skimmer drive device to rotate horizontally, which is convenient for scraping the sludge on the surface into the slag hopper, and the inclined slag hopper is used
  • the sludge enters the slag discharge pipe and flows out by gravity, further optimizing the structure.
  • the hole diameter of the annular water collecting pipe is 10mm-30mm, two holes are opened on each section, and the interval between the sections is 10cm-50cm.
  • the arrangement of porous intervals facilitates that the upward water flow can enter the annular water collecting pipe fully and uniformly, thereby evenly contacting the radial connecting pipe and the air-floating contact area.
  • a water level regulator is connected to one side of the water outlet pipe.
  • a vertical flow sedimentation and air flotation working method for water treatment the steps include:
  • the present invention has a high utilization rate of pool capacity, a small footprint, and adopts assembly-type processing to reduce the difficulty of equipment processing;
  • the present invention treats sewage with different heavy suspended solids without switching, and the operation is simple;
  • the sedimentation part enters water in the center and exits at the periphery, which prolongs the hydraulic flow and improves the sedimentation treatment effect;
  • the air flotation part of the present invention is supplemented with flocculant before entering the contact area, and is mixed in the radial connecting pipe, fully reacts, and re-forms flocs in the contact area to improve the air flotation effect.
  • Figure 1 is a schematic diagram of the overall structure of this embodiment
  • Figure 2 is an upper schematic diagram of the overall structure of this embodiment
  • Figure 3 is a schematic diagram showing the arrangement of pipes in this embodiment
  • Figure 4 is a schematic diagram showing the arrangement of fillers in this embodiment
  • Figure 5 is a schematic diagram of the bottom structure of this embodiment.
  • a vertical flow sedimentation and air flotation device for water treatment includes a tank body 1, and the material of the tank body 1 is reinforced concrete, anticorrosive carbon steel, stainless steel plate or plastic plate.
  • the middle and upper part of the tank body 1 is cylindrical, and the tank body 1 is vertically arranged from bottom to top with a mud discharge area, an inflow water distribution area 6, a sedimentation area 9, a sedimentation effluent steady flow area 10, and an air flotation contact area 14 to separate the slag water from the slag water.
  • District 17 a vertical flow sedimentation and air flotation device for water treatment.
  • the middle of the tank body 1 is provided with an inlet pipe 2 connected to the water inlet distribution area 6.
  • the inlet pipe 2 passes through the sedimentation outlet steady flow area 10 and penetrates the center of the sedimentation area 9.
  • the end of the inlet pipe 2 is connected to the inlet water distribution area.
  • the diversion cone 5 in the center of the water distribution zone 6, the connecting cone angle of the diversion cone 5 is 150°
  • the bottom circle diameter is not less than 4 times of the water inlet pipe 2
  • the water distribution is horizontal and in a circular radial shape
  • the water distribution is as horizontal as possible, in a circular shape Radial
  • the advantage is that the vertical flow sedimentation tank is used to create the flow pattern of the radial flow sedimentation tank, and the particle size and flow field distribution are optimized.
  • the sludge area includes a sludge bucket 7 at the bottom.
  • the sludge bucket 7 is an inverted hollow frustum with an angle of 50° between the side wall and the horizontal plane.
  • the bottom of the sludge bucket 7 is connected with
  • the sludge discharge pipe 8 is used to discharge sludge with a high specific gravity for the first time.
  • the sedimentation zone 9 is equipped with fillers to intercept the flocs in the upstream water flow.
  • the fillers are set as plastic inclined pipes or plastic inclined plates, the installation angle is 65° ⁇ 70°, and the vertical height No less than 1.0m, the top is equipped with a steel mesh for pressing and anti-floating.
  • the inclined pipe of the filling adopts a pipe diameter of 50mm, or an inclined plate, and the spacing of the inclined plate is 50mm.
  • the material is plastic, and the installation angle is 65°.
  • the vertical height can be optimized to 1.0m, and the top is made of steel mesh to press the top to resist floating, which is convenient for the sludge accumulated on the filler to slide down smoothly, reducing the anaerobic reaction of sludge accumulation on the filler and causing the sludge to float up risk.
  • the air flotation contact zone 14 there is a partition 23 between the sedimentation water steady flow zone 10 and the air flotation contact zone 14.
  • the lower part of the air flotation contact zone 14 is the vertical contact mixing section, the upper part is the inclined diffusion section, and the inclined diffusion section
  • the height is greater than the height of the vertical contact mixing section.
  • the height of the vertical section is 30 cm
  • the diffusion angle of the diffusion section is 40°
  • the height of the diffusion section is 50 cm.
  • the height of the settled effluent steady flow zone 10 is not less than 700 mm
  • the center of the annular water collecting pipe 12 and the radial connecting pipe 11 is not lower than the center of the settled effluent steady flow zone 10.
  • the design of the air flotation contact zone 14 facilitates the full mixing of gas, water and flocs in the contact zone, the gas adheres to the flocs, the density is reduced, and scum is formed on the surface.
  • the bottom of the air flotation contact zone 14 penetrates the middle of the partition 23, and the top of the sedimentation water steady flow zone 10 is provided with a plurality of radial communication pipes 11 and annular water collecting pipes 12 on the same plane.
  • the radial connecting pipes 11 and the annular water collecting pipe 12 are provided There are multiple sets of perforations.
  • the upward water flow is connected to the radial connecting pipe 11 through the annular water collecting pipe 12, and the radial connecting pipe 11 is connected to the air flotation contact area 14.
  • the hole diameter of the annular water collecting pipe 12 is 10mm-30mm, and 2 holes are opened on each section. The distance between the cut-out sections is 10cm ⁇ 50cm.
  • the arrangement of the porous intervals facilitates the upward water flow to enter the annular water collection pipe 12 uniformly and uniformly, so as to evenly contact the radial communication pipe 11 and the air flotation contact area 14.
  • a dissolved gas water pipe 3 connected to the air flotation contact zone 14 is provided in the middle of the tank body 1, and the refluxed dissolved gas water merges with the effluent water of the sedimentation tank in the air flotation contact zone 14 and releases the dissolved gas.
  • the radial connecting pipe 11 is provided with a flocculant replenishing device.
  • the flocculant replenishing device includes a dosing pipe 13 at the beginning of the radial connecting pipe 11.
  • the dosing pipe 13 is arranged diagonally, and the dosing pipe After 13 is connected with an elongated pipeline mixer.
  • the dosing pipe 13 is used to supplement the flocculant required for air flotation.
  • an elongated pipeline mixer is connected to promote the flocculation reaction between the flocs and the medicament.
  • the dosing pipe 13 is annular in the tank, and a plurality of ports are evenly distributed and connected to the radial communication pipe 11.
  • the bottom of the slag-water separation zone 17 is provided with an outlet pipe 18 connected to the outside of the tank body 1.
  • the outlet pipe 18 is a section of the slag-water separation zone 17 with evenly provided multiple through holes for supplying clean water.
  • a water level regulator 19 is connected to one side of the water outlet pipe 18, and a water level regulator 19 is installed inside the water level regulator 19.
  • the top of the slag-water separation zone 17 is provided with a slag scraper 20 and a skimmer driving device 21.
  • the slag scraper 20 is a surface rotating type.
  • One end of the slag scraper 20 is connected with the skimmer driving device 21.
  • a slag hopper 16 is provided under one side of the slag scraper 20.
  • the bottom of the slag hopper 16 is inclined, and the inclination angle is not less than 11.25°.
  • a slag discharge pipe 22 is connected to the inclined end of the bucket 16.
  • the rotation of the skimmer driving device 21 of this embodiment is set to 1.5 r/min.
  • the slag scraper 20 When the sludge accumulates on the top of the slag-water separation zone 17, the slag scraper 20 is driven by the skimmer drive device 21 to perform a horizontal rotation movement, so that the sludge on the surface can be scraped into the slag hopper 16, and the inclined slag hopper 16 utilizes the sludge.
  • the slag enters the slag discharge pipe 22 by gravity and flows out.
  • the original water suspended solids concentration SS concentration is 80-100mg/L, and the ammonia nitrogen concentration is 12-15mg/L. After being treated by the vertical flow sedimentation-air flotation device, the SS concentration is stabilized below 8mg/L, and the ammonia nitrogen concentration is stabilized below 7.5mg/L .
  • a vertical flow sedimentation and air flotation working method for water treatment the steps include:

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Abstract

本发明公开了一种水处理用竖流式沉淀与气浮装置及其工作方法，其技术要点是：包括池体，所述池体中上部为圆柱形，所述池体从下至上竖向排布有排泥区、进水配水区、沉淀区、沉淀出水稳流区、气浮接触区与渣水分离区；所述沉淀区内部设有填料，所述沉淀出水稳流区与气浮接触区间设有隔板，所述气浮接触区底部贯穿隔板中部，所述沉淀出水稳流区顶部设有位于同一平面的多条径向连通管与环形集水管，所述径向连通管与环形集水管上设有多组穿孔，上行水流通过环形集水管连通径向连通管，径向连通管连通气浮接触区，所述径向连通管设有絮凝剂补充装置，结构合理、功能分区明确、前后工艺不互影响，运行稳定、固液分离效率高、出水水质优良等优点。

Description

一种水处理用竖流式沉淀与气浮装置及其工作方法 技术领域
本发明涉及环境保护、污水处理领域，更具体地说，它涉及到一种高效的固液分离装置，是一种水处理用竖流式沉淀与气浮装置及其工作方法。
背景技术
悬浮物是水体的发黑因子，也是水体发臭的诱发因子。去除水体中的悬浮物可有效解决水体发黑问题，缓解发臭的环境压力。现有的固液分离技术在流态和流程上不能同时解决大比重和小比重的悬浮物固液分离。
然而，现有的设计方案一般池体设计为方形，分离区容积利用率低。通常现有技术将气浮技术和沉淀技术叠加，通过调节阀门，单独气浮或沉淀，但气浮和沉淀不能同时运行，否则系统流态紊乱，溶气气浮水在沉淀区释放，严重影响固液分离效果。亦或存在水力流态不合理，不能有效保证气浮工艺与沉淀工艺的良好运行，出水水质无法保障。另有采用纳米气泡上浮，纳米气泡在水中的释放过程非常缓慢，絮体黏附气泡后，密度降低，沉降速度减缓，降低了沉淀池的表面负荷。
公开号为CN208747821U的中国专利公开了一种反应、沉淀、气浮一体化的水处理装置，包括反应池、沉淀池、污泥斗、气浮池，其中沉淀池下方设置有污泥斗，反应池位于沉淀池的上方且通过连接管连接，连接管延伸至沉淀池下部，沉淀池顶部设有集水室，集水室上方设置有气浮室，气浮室由接触室和分离室组成，所述接触室为中空管道结构，接触室下端固定于集水室上，接触室上端接入溶气水，所述分离室的下端设置有气浮出水口，所述气浮室上部设置有排渣装置，排渣装置由刮渣装置和排渣收集装置组成，形成的浮渣通过刮渣装置刮入排渣收集装置。
上述方案实现了沉淀与气浮的竖向串联，先沉淀后气浮，但其顶集水为锥形，出水口位于装置中心，运行时将会短流，影响沉淀效果。气浮阶段没有补充絮凝剂，沉淀池出水的SS不足以形成絮体，影响气浮效果。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种水处理用竖流式沉淀与气浮装置及其工作方法，具有结构合理、功能分区明确、后续工艺不受前面工艺的影响，运行稳定、固液分离效率高、出水水质优良等优点。
本发明的上述目的是通过以下技术方案实现的，一种水处理用竖流式沉淀与气浮装置，包括池体，所述池体中上部为圆柱形，所述池体从下至上竖向排布有排泥区、进水配水区、沉淀区、沉淀出水稳流区、气浮接触区与渣水分离区；
所述池体中部设有连通进水配水区的进水管，所述进水管穿过沉淀出水稳流区并贯穿沉淀区中心，所述进水管末端连接有位于进水配水区中心的导流锥；
所述沉淀区内部设有填料，用于截流上行水流中的絮体；
所述沉淀出水稳流区与气浮接触区间设有隔板，所述气浮接触区底部贯穿隔板中 部，所述沉淀出水稳流区顶部设有位于同一平面的多条径向连通管与环形集水管，所述径向连通管与环形集水管上设有多组穿孔，上行水流通过环形集水管连通径向连通管，径向连通管连通气浮接触区，所述池体中部设有连通气浮接触区的溶气水管；
所述径向连通管设有絮凝剂补充装置；
所述渣水分离区底部设有连通池体外部的出水管，所述渣水分离区顶部设有刮渣板与撇渣机驱动装置。
通过采用上述技术方案，混合、絮凝后的污水，通过中心导流锥径向布水，比重大的絮体下沉至排泥区，比重小的絮体随水流通过沉淀区，被截流在填料上，累积到一定的程度，自然滑落至排泥区，剩余的絮体随水流进入沉淀出水稳流区上部的环形集水管，环形集水管与径向连通管连通，水流通过径向连通管中部与气浮接触区的底部连接，径向连通管一侧通过絮凝剂补充装置补充少量的絮凝剂，回流的溶气水在气浮接触区与沉淀池出水汇合，并释放溶气；絮体上浮至渣水分离区表面，由顶部的刮渣板刮掉排出，清水通过气浮池底部的穿孔管排出。
作为优选，所述气浮接触区下部为竖直接触混合段，上部为倾斜扩散段，扩散角40°，倾斜扩散段高度大于竖直接触混合段高度。
通过采用上述技术方案，气浮接触区的设计便于气、水和絮体在接触区充分混合，气体粘附与絮体上，密度降低，在表面形成浮渣。
作为优选，所述导流锥的连接锥角为150°，底部圆直径不小于进水管的4倍，布水水平且呈环形辐射状。
通过采用上述技术方案，布水尽量水平，呈环形辐射状，优点在于利用竖流式沉淀池的池型，创造辐流式沉淀池的流态，优化了颗粒粒径和流场分布。
作为优选，所述填料设为塑料斜管或塑料斜板，安装角度为65°～70°，竖向高度不低于1.0m，顶部设有用于压顶抗浮的钢筋网片。
通过采用上述技术方案，填料的斜管采用管径50mm，或斜板，斜板的间距为50mm，其材质为塑料，安装角度最优为65°～70°，竖向高度可优化为1.0m，顶部采用钢筋网片压顶抗浮，优点在于：填料上堆积的污泥能顺利滑落，减少了污泥堆积在填料上发生厌氧反应导致污泥上浮的风险。
作为优选，所述絮凝剂补充装置包括位于径向连通管起端的加药管，所述加药管斜向设置，所述加药管后连接有加长型的管道混合器。
通过采用上述技术方案，加药管用于补充气浮所需的絮凝剂，加药点后连接加长型的管道混合器，促进絮体与药剂的絮凝反应。
作为优选，所述的加药管在池内呈环形，均匀分布多个接口与径向连通管连接。
通过采用上述技术方案，沿气浮接触区的中心径向排布的多组径向连通管需要皆充分添加絮凝剂，通过多组接口的加药管可以高效率高均匀度的进行加药融合。
作为优选，所述刮渣板为表面旋转式，刮渣板一端与撇渣机驱动装置连接，所述刮渣板一侧下方设有渣斗，所述渣斗底部倾斜，倾斜角不小于11.25°，所述渣斗倾斜末端连接有排渣管。
通过采用上述技术方案，当渣水分离区的顶部积聚了泥渣后，通过撇渣机驱动装置带动刮渣板进行水平旋转运动，便于将表面的泥渣刮入渣斗，倾斜的渣斗利用泥渣自身 重力进入排渣管流出，进一步优化了结构。
作为优选，所述的环形集水管的孔径为10mm～30mm，各断面上开2个孔，开孔断面间距10cm～50cm。
通过采用上述技术方案，多孔间隔设置便于上行水流得以充分均匀的进入环形集水管，从而均匀与径向连通管与气浮接触区接触。
作为优选，所述出水管一侧连接有水位调节器。
通过采用上述技术方案，水位调节器内部有水位调节阀，通过调整水位调节阀的开启度，控制渣水分离区内的水位。
一种水处理用竖流式沉淀与气浮工作方法，步骤包括：
(1)混合、絮凝后的污水，通过中心导流锥径向布水，比重大的絮体下沉至污泥斗；
(2)比重小的絮体随水流通过沉淀区，被截流在填料上，累积到一定的程度，自然滑落至污泥斗；
(3)残留的絮体随水流进入沉淀出水稳流区上部的环形集水管的穿孔进入，通过径向连通管与气浮池的接触区连接，径向管上补充少量的絮凝剂；
(4)回流的溶气水在接触区与沉淀池出水汇合，并释放溶气；絮体上浮至分离区表面，由顶部的撇渣机刮至渣斗，通过排渣管排出，清水通过气浮池底部的穿孔管排出。
综上所述，本发明的有益效果有：
1、本发明池容利用率高，占地小，采用装配式加工降低设备加工难度；
2、本发明在处理含有不同重度悬浮物的污水，不需要切换，操作简单；
3、本发明的沉淀部分中心进水，周边出水，延长了水力流程，提高了沉淀处理效果；
4、本发明的气浮部分在进入接触区前补充了絮凝剂，并在径向连通管内混合，充分反应，在接触区内重新形成絮体，提高气浮效果。
附图说明
图1为本实施例的整体结构的示意图；
图2为本实施例的整体结构的上部示意图；
图3为本实施例中用于表现管道布置的示意图；
图4为本实施例中用于表现填料布置的示意图；
图5为本实施例的底部结构示意图。
附图标记：1、池体；2、进水管；3、溶气水管；4、释放器；5、导流锥；6、进水配水区；7、污泥斗；8、排泥管；9、沉淀区；10、沉淀出水稳流区；11、径向连通管；12、环形集水管；13、加药管；14、气浮接触区；16、渣斗；17、渣水分离区；18、出水管；19、水位调节器；20、刮渣板；21、撇渣机驱动装置；22、排渣管；23、隔板。
具体实施方式
下面结合附图详细说明本发明的具体实施方式。
实施例1：如图1所示，一种水处理用竖流式沉淀与气浮装置，包括池体1，池体1材料为钢筋混凝土、防腐碳钢、不锈钢板或塑料板。池体1中上部为圆柱形，池体1从下至上竖 向排布有排泥区、进水配水区6、沉淀区9、沉淀出水稳流区10、气浮接触区14与渣水分离区17。
如图1所示，池体1中部设有连通进水配水区6的进水管2，进水管2穿过沉淀出水稳流区10并贯穿沉淀区9中心，进水管2末端连接有位于进水配水区6中心的导流锥5，导流锥5的连接锥角为150°，底部圆直径不小于进水管2的4倍，布水水平且呈环形辐射状，布水尽量水平，呈环形辐射状，优点在于利用竖流式沉淀池的池型，创造辐流式沉淀池的流态，优化了颗粒粒径和流场分布。
如图1、图5所示，排泥区包括位于底部的污泥斗7，污泥斗7为倒置的空心锥台，其侧壁与水平面夹角为50°，污泥斗7底部连接有排泥管8，用于将比重大的污泥进行首次的排出。
如图1、图4所示，沉淀区9内部设有填料，用于截流上行水流中的絮体，填料设为塑料斜管或塑料斜板，安装角度为65°～70°，竖向高度不低于1.0m，顶部设有用于压顶抗浮的钢筋网片，填料的斜管采用管径50mm，或斜板，斜板的间距为50mm，其材质为塑料，安装角度最优为65°～70°，竖向高度可优化为1.0m，顶部采用钢筋网片压顶抗浮，便于填料上堆积的污泥能顺利滑落，减少了污泥堆积在填料上发生厌氧反应导致污泥上浮的风险。
如图1、图3所示，沉淀出水稳流区10与气浮接触区14间设有隔板23，气浮接触区14下部为竖直接触混合段，上部为倾斜扩散段，倾斜扩散段高度大于竖直接触混合段高度。本实施例竖直段高度30cm，扩散段的扩散角40°，扩散段高50cm。沉淀出水稳流区10高度不小于700mm，环形集水管12、径向连通管11的中心不低于沉淀出水稳流区10的中心。气浮接触区14的设计便于气、水和絮体在接触区充分混合，气体粘附与絮体上，密度降低，在表面形成浮渣。
气浮接触区14底部贯穿隔板23中部，沉淀出水稳流区10顶部设有位于同一平面的多条径向连通管11与环形集水管12，径向连通管11与环形集水管12上设有多组穿孔，上行水流通过环形集水管12连通径向连通管11，径向连通管11连通气浮接触区14，环形集水管12的孔径为10mm～30mm，各断面上开2个孔，开孔断面间距10cm～50cm。多孔间隔设置便于上行水流得以充分均匀的进入环形集水管12，从而均匀与径向连通管11与气浮接触区14接触。池体1中部设有连通气浮接触区14的溶气水管3，回流的溶气水在气浮接触区14与沉淀池出水汇合，并释放溶气。
如图1、图3所示，径向连通管11设有絮凝剂补充装置，絮凝剂补充装置包括位于径向连通管11起端的加药管13，加药管13斜向设置，加药管13后连接有加长型的管道混合器。加药管13用于补充气浮所需的絮凝剂，加药点后连接加长型的管道混合器，促进絮体与药剂的絮凝反应。加药管13在池内呈环形，均匀分布多个接口与径向连通管11连接。沿气浮接触区14的中心径向排布的多组径向连通管11需要皆充分添加絮凝剂，通过多组接口的加药管13可以高效率高均匀度的进行加药融合。
如图1、图2所示，渣水分离区17底部设有连通池体1外部的出水管18，出水管18为于渣水分离区17内的一段均匀设有多个通孔，供清水流入，出水管18一侧连接有水位调节器19，水位调节器19内部有水位调节阀，通过调整水位调节阀的开启度，控制渣水分离区17内的水位。渣水分离区17顶部设有刮渣板20与撇渣机驱动装置21。刮渣板20为表面旋转式，刮渣板20一端与撇渣机驱动装置21连接，刮渣板20一侧下方设有渣斗16，渣斗16底部倾 斜，倾斜角不小于11.25°，渣斗16倾斜末端连接有排渣管22。本实施例的撇渣机驱动装置21转设定为1.5r/min。当渣水分离区17的顶部积聚了泥渣后，通过撇渣机驱动装置21带动刮渣板20进行水平旋转运动，便于将表面的泥渣刮入渣斗16，倾斜的渣斗16利用泥渣自身重力进入排渣管22流出。
工作过程：混合、絮凝后的污水，通过中心导流锥5径向布水，比重大的絮体下沉至排泥区，比重小的絮体随水流通过沉淀区9，被截流在填料上，累积到一定的程度，自然滑落至排泥区，剩余的絮体随水流进入沉淀出水稳流区10上部的环形集水管12，环形集水管12与径向连通管11连通，水流通过径向连通管11中部与气浮接触区14的底部连接，径向连通管11一侧通过絮凝剂补充装置补充少量的絮凝剂，回流的溶气水在气浮接触区14与沉淀池出水汇合，并释放溶气；絮体上浮至渣水分离区17表面，由顶部的刮渣板20刮掉排出，清水通过渣水分离区17底部的出水管18排出，在不同水质情况下的运行效果均良好。原水悬浮物浓度SS浓度80～100mg/L，氨氮浓度12～15mg/L，通过竖流式沉淀—气浮装置处理后，SS浓度稳定在8mg/L以下，氨氮浓度稳定在7.5mg/L以下。
一种水处理用竖流式沉淀与气浮工作方法，步骤包括：
(1)混合、絮凝后的污水，通过中心导流锥径向布水，比重大的絮体下沉至污泥斗；
(2)比重小的絮体随水流通过沉淀区，被截流在填料上，累积到一定的程度，自然滑落至污泥斗；
(3)残留的絮体随水流进入沉淀出水稳流区上部的环形集水管的穿孔进入，通过径向连通管与气浮池的接触区连接，径向管上补充少量的絮凝剂；
(4)回流的溶气水在接触区与沉淀池出水汇合，并释放溶气；絮体上浮至分离区表面，由顶部的撇渣机刮至渣斗，通过排渣管排出，清水通过气浮池底部的穿孔管排出。
本发明创造并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下，还可做出同等变型或替换，这些变形或替换包括沉淀(不论何种形式的沉淀池)+气浮(不论何种形式的气浮池)的所有形式，即先沉淀后气浮。这些同等的变型或替换均包含在本申请专利所限定的思想范围与保护范围内。

Claims (10)

  1. 一种水处理用竖流式沉淀与气浮装置，其特征在于：包括池体(1)，所述池体(1)中上部为圆柱形，所述池体(1)从下至上竖向排布有排泥区、进水配水区(6)、沉淀区(9)、沉淀出水稳流区(10)、气浮接触区(14)与渣水分离区(17)；
    所述池体(1)中部设有连通进水配水区(6)的进水管(2)，所述进水管(2)穿过沉淀出水稳流区(10)并贯穿沉淀区(9)中心，所述进水管(2)末端连接有位于进水配水区(6)中心的导流锥(5)；
    所述沉淀区(9)内部设有填料，用于截流上行水流中的絮体；
    所述沉淀出水稳流区(10)与气浮接触区(14)间设有隔板(23)，所述气浮接触区(14)底部贯穿隔板(23)中部，所述沉淀出水稳流区(10)顶部设有位于同一平面的多条径向连通管(11)与环形集水管(12)，所述径向连通管(11)与环形集水管(12)上设有多组穿孔，上行水流通过环形集水管(12)连通径向连通管(11)，径向连通管(11)连通气浮接触区(14)，所述池体(1)中部设有连通气浮接触区(14)的溶气水管(3)；
    所述径向连通管(11)设有絮凝剂补充装置；
    所述渣水分离区(17)底部设有连通池体(1)外部的出水管(18)，所述渣水分离区(17)顶部设有刮渣板(20)与撇渣机驱动装置(21)。
  2. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述气浮接触区(14)下部为竖直接触混合段，上部为倾斜扩散段，扩散角40°，倾斜扩散段高度大于竖直接触混合段高度。
  3. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述导流锥(5)的连接锥角为150°，底部圆直径不小于进水管(2)的4倍，布水水平且呈环形辐射状。
  4. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述填料设为塑料斜管或塑料斜板，安装角度为65°～70°，竖向高度不低于1.0m，顶部设有用于压顶抗浮的钢筋网片。
  5. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述絮凝剂补充装置包括位于径向连通管(11)起端的加药管(13)，所述加药管(13)斜向设置，所述加药管(13)后连接有加长型的管道混合器。
  6. 根据权利要求5所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述的加药管(13)在池内呈环形，均匀分布多个接口与径向连通管(11)连接。
  7. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述刮渣板(20)为表面旋转式，刮渣板(20)一端与撇渣机驱动装置(21)连接，所述刮渣板(20)一侧下方设有渣斗(16)，所述渣斗(16)底部倾斜，倾斜角不小于11.25°，所述渣斗(16)倾斜末端连接有排渣管(22)。
  8. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述的环形集水管(12)的孔径为10mm～30mm，各断面上开2个孔，开孔断面间距10cm～50cm。
  9. 根据权利要求1所述的一种水处理用竖流式沉淀与气浮装置，其特征在于：所述出水管(18)一侧连接有水位调节器(19)。
  10. 一种水处理用竖流式沉淀与气浮工作方法，步骤包括：
    (1)混合、絮凝后的污水，通过中心导流锥径向布水，比重大的絮体下沉至污泥斗；
    (2)比重小的絮体随水流通过沉淀区，被截流在填料上，累积到一定的程度，自然滑落 至污泥斗；
    (3)残留的絮体随水流进入沉淀出水稳流区上部的环形集水管的穿孔进入，通过径向连通管与气浮池的接触区连接，径向管上补充少量的絮凝剂；
    (4)回流的溶气水在接触区与沉淀池出水汇合，并释放溶气；絮体上浮至分离区表面，由顶部的撇渣机刮至渣斗，通过排渣管排出，清水通过气浮池底部的穿孔管排出。
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