WO2011160271A1 - 含油污水净化处理装置 - Google Patents

含油污水净化处理装置 Download PDF

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Publication number
WO2011160271A1
WO2011160271A1 PCT/CN2010/073786 CN2010073786W WO2011160271A1 WO 2011160271 A1 WO2011160271 A1 WO 2011160271A1 CN 2010073786 W CN2010073786 W CN 2010073786W WO 2011160271 A1 WO2011160271 A1 WO 2011160271A1
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WO
WIPO (PCT)
Prior art keywords
sludge
sewage
water
oil
pipe
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Application number
PCT/CN2010/073786
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English (en)
French (fr)
Inventor
姜学文
张余凯
邬扬善
Original Assignee
Jiang Xuewen
Zhang Yukai
Wu Yangshan
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Filing date
Publication date
Application filed by Jiang Xuewen, Zhang Yukai, Wu Yangshan filed Critical Jiang Xuewen
Priority to US13/144,865 priority Critical patent/US8828224B2/en
Priority to PCT/CN2010/073786 priority patent/WO2011160271A1/zh
Priority to EP10838363.9A priority patent/EP2583949A4/en
Publication of WO2011160271A1 publication Critical patent/WO2011160271A1/zh

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Classifications

    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • 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
    • B01D21/0084—Enhancing liquid-particle separation using the flotation principle
    • 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
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
    • 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
    • B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
    • 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
    • B01D21/245—Discharge mechanisms for the sediments
    • 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
    • B01D21/2494—Feed or discharge mechanisms for settling tanks provided with means for the removal of gas, e.g. noxious gas, air
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • B01D21/245—Discharge mechanisms for the sediments
    • B01D21/2483—Means or provisions for manually removing the sediments
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/02—Fluid flow conditions
    • C02F2301/026—Spiral, helicoidal, radial

Definitions

  • This invention relates to the field of sewage treatment, and more particularly to an apparatus for oilfield reinjection and petrochemical wastewater treatment of a petrochemical enterprise.
  • the traditional "secondary sedimentation” and “secondary filtration” water treatment process technologies and equipment have long purification process, large system, and high purification efficiency, and it is difficult to adapt to the purification process requirements of high-emulsified oil and suspended solids.
  • the traditional oily wastewater treatment process system has the disadvantages of low efficiency and unstable operation.
  • the ceramic ultrafiltration membrane wastewater treatment technology that has been studied since 1991 is expensive because of the high cost of ceramic membranes, strict pre-treatment requirements, and high requirements for membrane cleaning. It is still in the industrial test stage.
  • the cyclone degreasing method is simple, The price is not too high, but the treated water quality can not meet the water quality standard of re-injection. Therefore, various oilfields and petrochemical enterprises urgently need a high purification efficiency, and the treated effluent can meet the existing water quality/return water quality standards, investment and New technologies and equipment for wastewater treatment with low operating costs.
  • the object of the present invention is to provide an improved device for an oily sewage purification system with simple and reliable process, low investment and operation cost, small land occupation and good solid-liquid separation effect, and solves the current treatment of oilfield produced water and petrochemical discharge water.
  • There are a series of problems such as long process, large investment, poor treatment effect, complicated operation of filter operation, and advanced treatment after pretreatment and biochemical treatment of petrochemical enterprises. ,
  • An oil-containing sewage purification treatment device comprises a normal pressure vertical tank, and the interior thereof comprises a central coagulation reaction cylinder, an inverted conical swirling flocculation section, a suspended sludge filtration layer, and a sloping plate clear water rectifying section from bottom to top;
  • the bottom of the central coagulation reaction tank is provided with a sewage inlet along a tangential direction;
  • the outer layer of the suspended sludge filter layer is provided with a raft to form a sludge collecting tank, and is connected to the sludge concentration zone through the sludge overflow pipe, the sludge
  • the concentrating zone is connected with a drain pipe;
  • the upper part of the sloping water clearing section is provided with a clear water outlet formed by the water slab along the tank wall and connected to the outlet pipe.
  • a stirrer is arranged at the bottom of the central coagulation reaction tube, wherein the rotation speed of the agitator is adjustable.
  • a sludge water outlet is arranged at the top of the sludge concentration zone, a gas barrier is arranged below the sludge water outlet, and an exhaust pipe is arranged above the gas barrier.
  • a sludge bucket is arranged in the sludge concentration zone, and a sludge drain pipe is connected to the sludge bucket.
  • a sewage lifting pump is disposed, and the inlet and outlet pipes of the sewage lifting pump are respectively provided with a charging port and a standby feeding port.
  • the internal structure of the utility model is precisely designed according to the coagulation mechanism.
  • the medicinal sewage is tangentially entered from the bottom of the cylindrical central coagulation reaction tube, the direction of the water flow is large due to the special structure of the cylindrical cylinder.
  • the change, due to the agitation of the agitator, causes a strong turbulence, thus achieving sufficient mixing.
  • the sludge particles in the sewage are in the early stage of flocculation, and the turbulence has little effect on the flocculation;
  • the sludge particles are getting larger and larger;
  • the flocculation process of the sludge reaches the flocculation stage in the later stage, and the adverse effect of the turbulence is also increasing, which is compatible with the requirements of the flocculation process.
  • the mixed liquid flows into the inverted conical swirling flocculation section.
  • the cross-section is continuously expanding, the flow rate is gradually reduced, and the flow tends to be moderated.
  • flocculation has been basically completed; the flocculated sludge particles are constantly rising. , the density is getting bigger and bigger, the flow rate is getting smaller and smaller, and the sedimentation begins slowly.
  • the sludge particles are also supported and squeezed by the rising water flow of the sewage continuously flowing from the bottom of the tank.
  • the sludge remains dynamically stationary, thus forming a suspension.
  • the sedimentation rate of the sludge particles is continuously increased, so that the flow rate of the water flow and the amount of water produced can be increased, and a filtering effect is formed.
  • the dense suspended sludge filter layer is composed of the floc body formed by the suspended matter in the sewage and the coagulating agent, as the floc moves from the bottom to the top, the lower layer of the mud layer is continuously increased and thickened, and at the same time With the bypass flow of the tank formed by the principle of filtration hydraulics, the upper surface layer of the suspended sludge layer is continuously flowed into the surrounding mud collecting tank, and the upper surface layer is continuously reduced and thinned.
  • the thickness of the suspended sludge filtration layer A dynamic balance is reached; when the effluent after coagulation passes through the suspended mud layer from bottom to top, the floc filter layer is suspended colloidal particles by the interface physical adsorption and electrochemical properties and the effect of van der Waals force and mechanical filtration. All impurities such as flocs and bacterial cells are intercepted in the suspended mud layer, so that the effluent water quality reaches the level of fine filtration. Since the suspended sludge layer is composed of flocs, the density is high, and the filtration efficiency is much higher than that of the conventional sand layer filtration. Because the floc layer is in suspension, the filtration head has a very large loss of water (resistance).
  • the power consumption is far lower than the conventional sand filtration, microfiltration or reverse osmosis membrane filtration, and because the filtration mud layer is automatically added by the suspended solids in the purification process, it is automatically taken away, that is, The filter mud layer itself is constantly being renewed, the filter mud layer always maintains a stable thickness, and always maintains stable physical adsorption and electrochemical adsorption properties, so that a stable filtration effect can be obtained, and the conventional system is completely avoided. Backwashing procedures for essential filter layers and filter updates and additions.
  • the invention has the beneficial effects that the oily sewage is sequentially subjected to coagulation reaction, suspended sludge purification and water rectification treatment through the internal structure of the device, thereby realizing the sewage purification reaction, flocculation, fine filtration and sludge concentration process in one sewage.
  • FIG. 1 is a schematic view showing the structure of an oily sewage purification treatment device according to the present invention.
  • Sewage lifting pump 2. Central coagulation reaction tube; 3. Inverted conical swirling flocculation section; 4. Seesaw; 5. Suspended sludge filtration layer; 6. Sloping plate clear water rectifier section; 8, water raft; 9, sludge concentration zone; 10, gas barrier; 11, gas outlet; 12, dosing mouth; 13, spare dosing mouth; 14, sludge ⁇ pipe; 15, sludge bucket 16, sludge overflow pipe; 17, outlet pipe; 18, agitator; 19, sludge water out ⁇ .
  • the oily sewage purification treatment device comprises a normal pressure vertical tank, and the interior thereof includes a central coagulation reaction cylinder 2 and an inverted conical swirl flocculation section 3 from bottom to top. a suspended sludge filter layer 5, a sloping plate fresh water rectifying section 6; a bottom of the central coagulation reaction cylinder 2 is provided with a sewage inlet in a tangential direction; a bottom of the central coagulation reaction cylinder 2 is provided with a stirrer, wherein The speed is adjustable, and the appropriate speed can be set according to the characteristics of the oily sewage to achieve the optimal mixing effect.
  • the cuvette 4 is disposed on the outer periphery of the suspended sludge filter layer 5 to form a sludge collecting tank 7, and is connected to the sludge concentration zone 9 through the sludge overflow pipe 16, and the sludge concentration zone 9 is connected with the sludge discharge pipe 14;
  • the upper portion of the rectifying section 6 is provided with a clean water outlet formed by the water discharge raft 8 along the tank wall and connected to the water outlet pipe 17.
  • annular coagulation reaction tube 2 at the bottom of the device, the annular space between the periphery of the inverted conical swirling flocculation section 3 and the tank wall constitute a sludge concentration zone 9, the upper part of the space is provided with a gas barrier plate 10, and the top portion is provided with an air outlet pipe 11
  • the sludge concentration zone 9 is provided with a sludge bucket 15 , and the sludge bucket 15 is connected with a sludge discharge pipe 14 to the outside of the tank wall, which is beneficial to the collection and discharge of the sludge after concentration.
  • a sewage lifting pump 1 Before the sewage is imported, a sewage lifting pump 1 is arranged, and the inlet and outlet pipes of the sewage lifting pump 1 are respectively provided with a dosing port 12 and a spare dosing port 13, which can facilitate the addition of various matching agents, such as a high-efficiency degreaser. , compound water purifying agent, coagulant, coagulant, etc.
  • the oily sewage is sequentially passed through the central coagulation reactor 2, the inverted conical swirling flocculation section 3 for coagulation reaction, and the suspended sludge filtration layer 5 is used for filtration and purification of the suspended sludge, and the sloping plate is cleaned and rectified.
  • 6 After the clear water rectification treatment, it is discharged, and the suspended sludge is collected from the sludge collecting tank 7 and led to the sludge concentration zone 9 for further sedimentation and concentration treatment, and then discharged to the outside of the tank to achieve purification reaction, flocculation, fine filtration and sludge concentration of the sewage.
  • the program incorporates the purpose of the tank in a sewage purification unit.
  • the above-mentioned device adopts a novel design concept. It uses the dense suspended mud layer formed by the sewage itself to purify and filter the water, which breaks the mechanical filtration mode of the Chuanyu, making the whole purification system structure simpler, and the process flow is shorter and more reliable.
  • the oil well station can directly enter the purification system and directly process to the A-grade water quality, which is equivalent to the sum of the current sewage pretreatment and fine filtration system; no cleaning and replacement of the filter material, the premise of ensuring water quality
  • the utility model saves the replacement cost of the filter material and reduces the running cost; the water quality condition of the incoming water is not high, and can be widely used for coagulation, sedimentation or air flotation and fine filtration in the treatment of various industrial sewage and domestic sewage. Alternative to the process.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Filtration Of Liquid (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Physical Water Treatments (AREA)

Description

说 明 书
含油污水净化处理装置
技术领域
本发明涉及污水处理领域， 具体地说， 涉及一种用于油田回注和石化企业 含油污水净化处理的装置。
背景技术
目前， 油田大多采用注水开采方式， 每采出 1 吨原油约需向地下注回 5~8 立方米水 油田采出水经处理后几乎全部回注， 如果将含有大量悬浮物、 乳化 油和其它污染物的污水注回地下， 将影响油田以后的产油量。 因此， 油田污水 回注的处理技术和设备对于油田的开发、 生产具有极其重要的意义。
传统的 "二级沉降" 及 "二级过滤" 水处理工艺技术和设备由于净化工艺 流程长， ***庞大， 净化效率不够高， 难以适应高含乳化油、 悬浮物的采出水 的净化工艺需求。 传统含油污水处理工艺***， 存在效率低， 运行不稳定的缺 点。 自 1991年开始研究的陶瓷超滤膜废水处理技术由于陶瓷膜价格昂贵， 前处 理要求严格， 膜清洗工作要求高而尚处在工业性试验阶段； 另外， 旋流器除油 法虽然设备简单、 价格不太高， 但处理的水质尚不能达到回注水水质标准， 因 此， 各油田和石化企业十分迫切需要一种净化效率高、 处理后出水能满足现有 回注水 /回用水水质标准、 投资和运行费用低的污水处理新技术和新设备。
发明内容
本发明的目的是提供一种流程简单可靠、 投资和运行费用低、 占地少、 固 液分离效果好的含油污水净化***改进型装置， 解决了目前在油田采出水及石 化排出水的处理上存在的流程长、 投资大、 处理效果差和滤池操作管理复杂以 及石化企业含油污水生化之前的预处理和生化处理之后的深度处理等一系列的 问题。 ,
替换页 (细则第 26条） 说 明 书
本发明的目的是通过以下技术方案来实现：
一种含油污水净化处理装置， 包括常压立式罐， 其内部从底部至顶部依次 包括中心混凝反应筒、 倒锥形旋流絮凝段、 悬浮污泥过滤层、 斜板清水整流段； 所述中心混凝反应筒的底部沿切线方向设置有污水进口； 所述悬浮污泥过滤层 外周设置有堰板形成集泥槽， 并通过污泥溢出管与污泥浓缩区相连， 所述污泥 浓缩区接有排泥管； 斜板清水整流段上部沿罐壁设置有出水堰板形成的清水出 口并与出水管相连。
进一步的， 所述中心混凝反应筒的底部设有搅拌器， 其中， 搅拌器的转速 可调。
进一步的， 所述污泥浓缩区的顶部设有污泥水出口， 在所述污泥水出口下 方设有挡气板， 挡气板上方设有排气管。
进一步的， 所述污泥浓缩区内设有污泥斗， 污泥斗接有排泥管。
进一步的， 在所述污水进口之前设有污水提升泵， 所述污水提升泵的进出 口管上分别设置有加药口和备用加药口。
本实用新型的内部结构是完全按照混凝机理精确设计的， 当加药后的污水 由圆柱形的中心混凝反应筒底部切线进入， 由于圓柱形筒体的特殊构造， 水流 方向发生很大的变化， 又因搅拌器的搅动， 造成较强烈的紊动， 从而达到充分 的混合， 这时污水中的污泥颗粒正处于前期絮凝阶段， 紊动对絮凝的影响不大； 随着絮凝不断进行， 污泥颗粒越来越大； 污泥的絮凝过程到了后期絮凝阶段， 紊动的不利影响也越来越大， 与絮凝过程的要求相适应， 这时混合液流入倒锥 形旋流絮凝段， 断面不断扩大， 流速逐步降低， 且流动开始趋于緩和， 因此在 倒锥形旋流絮凝段下部的很小底层里， 絮凝作用已基本完成； 絮凝成形的污泥 颗粒在不断上升的过程中， 密度越来越大， 流速越来越小， 慢慢开始发生沉降
2
替换页 (细则第 26条） 说 明 书
的污泥颗粒还会被罐底不断涌入的污水的上升水流所顶托和挤压， 当重力与向 上的顶托和挤压力量相等时， 污泥保持动态的静止， 于是形成了一个悬浮污泥 粒沉降速率不断提高， 从而可以提高水流上升流速和产水量， 并且形成过滤作 用。
.由于致密的悬浮污泥过滤层是由污水中的悬浮物及混凝药剂形成的絮体本 身组成的， 随着絮体由下向上运动， 使泥层的下表层不断增加、 变厚， 同时， 随着过滤水力学原理形成的罐体的旁路流动， 引导着悬浮污泥层的上表层不断 流入周边的集泥槽， 上表层不断减少、 变薄， 这样， 悬浮污泥过滤层的厚度达 到一个动态的平衡； 当混凝后的出水由下向上穿过此悬浮泥层时， 此絮体滤层 靠界面物理吸附和电化学特性及范德华力的作用以及机械过滤作用， 将悬浮胶 体颗粒、 絮体、 细菌菌体等杂质全部拦截在此悬浮泥层中， 使出水水质达到精 细过滤的水平。 由于悬浮污泥层是由絮体组成， 致密度高， 过滤效率远远高于 常规的砂粒层过滤， 由于是处于悬浮状态的絮体泥层作滤层，其过滤的水头（阻 力）损失非常小， 所以动力消耗远远低于常规的砂层过滤、 微孔过滤或反渗透 膜过滤， 又由于过滤泥层是净化过程中由污水中的悬浮物自动补充添加， 又自 动被引走， 即过滤泥层自身在不断地更新， 过滤泥层总是保持着稳定的厚度， 而且总是保持着稳定的物理吸附和电化学吸附性能， 因此能获得稳定的过滤效 果， 并完全避免了常规***中必不可少的滤料层的反冲洗程序以及滤料更新和 补充。
本发明的有益效果为， 通过装置内部结构， 使含油污水依次经过混凝反应、 悬浮污泥净化和清水整流处理， 达到将污水的净化反应、 絮凝、 精细过滤以及 污泥浓缩程序合并在一个污水净化装置的罐体内的目的， 让本发明具有流程简
3
替换页 (细则第 26条） 说 明 书
单可靠、 投资和运行费用低、 占地少、 对来水水质要求不高、 净化效果好、 避 免滤料层的反沖洗及滤料污染等众多优势， 为油田采出水的回注和石化企业污 水的净化处理开创了一条新路， 具有不可估量的社会效益和经济效益。
附图说明
下面根据附图和实施例对本发明作进一步详细说明。
图 1是本发明所述含油污水净化处理装置组成结构示意图。
图中：
1、 污水提升泵； 2、 中心混凝反应筒； 3、 倒锥形旋流絮凝段； 4、 堰板； 5、 悬浮污泥过滤层； 6、 斜板清水整流段； 7、 集泥槽； 8、 出水堰板； 9、 污泥 浓缩区； 10、 挡气板； 11、 出气管； 12、 加药口； 13、 备用加药口； 14、 排泥 · 管； 15、 污泥斗； 16、 污泥溢出管； 17、 出水管； 18、 搅拌器； 19、 污泥水出 π。 具体实施方式
如图 1 所示， 本发明实施例所述的含油污水净化处理装置， 包括常压立式 罐， 其内部从底部至顶部依次包括中心混凝反应筒 2、 倒锥形旋流絮凝段 3、 悬 浮污泥过滤层 5、 斜板清水整流段 6; 所述中心混凝反应筒 2的底部沿切线方向 设置有污水进口； 中心混凝反应筒 2的底部设有搅拌器， 其中， 搅拌器的转速 可调， 可根据含油污水特性设置适当的转速， 达到最优的混合效果。
悬浮污泥过滤层 5外周设置有堰板 4形成集泥槽 7, 并通过污泥溢出管 16 与污泥浓缩区 9相连， 所述污泥浓缩区 9接有排泥管 14; 斜板清水整流段 6上 部沿罐壁设置有出水堰板 8形成的清水出口并与出水管 17相连。
所述装置底部中心混凝反应筒 2、 倒锥形旋流絮凝段 3 ***与罐壁之间的 环形空间构成污泥浓缩区 9 , 空间上部设置有挡气板 10， 顶部设置有出气管 11
4
替换页 (细则第 26条） 说 明 书
与外界相通； 污泥浓缩区 9内设有污泥斗 15 , 污泥斗 15接有排泥管 14穿出至 罐壁外， 有利于污泥浓缩后的收集和排出。
污水进口之前设有污水提升泵 1 , 所述污水提升泵 1 的进出口管上分别设 置有加药口 12和备用加药口 13 , 可方便各种适配药剂的加入， 如高效除油剂、 复合净水剂、 助凝剂、 混凝剂等。
通过装置内部结构， 使含油污水依次经过中心混凝反应筒 2、 倒锥形旋流 絮凝段 3进行混凝反应、 经过悬浮污泥过滤层 5进行悬浮污泥过滤净化、 经过 斜板清水整流段 6进行清水整流处理后排出， 由集泥槽 7收集悬浮污泥并引至 污泥浓缩区 9进一步进行沉降浓缩处理后排出罐外， 达到将污水的净化反应、 絮凝、 精细过滤和污泥浓缩程序合并在一个污水净化装置的罐体内的目的。 ■ 上述装置采用新颖的设计理念， 利用污水自身形成的致密悬浮泥层进行水 质的净化、 过滤， 打破了传铳的机械过滤模式， 使得整套净化***装置结构更 为简单， 工艺流程更短更可靠； 可以实现油井站来水直接进入净化***并直接 处理到 A级水质， 功能上相当于目前的污水预处理和精细过滤***的总和； 没 有滤料的清洗和补充更换问题， 在保证水质的前提下， 节约了滤料的更换费用， 降低了运行费用； 对来水水质条件要求不高， 可广泛用于各种工业污水及生活 污水的处理中混凝、 沉淀或气浮、 精细过滤三个工艺的替代。
5
替换页 (细则第 26条)

Claims

权 利 要 求 书
1、 一种含油污水净化处理装置， 包括常压立式罐， 其特征在于， 其内部从 底部至顶部依次包括中心混凝反应筒 （2)、 倒锥形旋流絮凝段 （3)、 悬浮污泥 过滤层（5)、 斜板清水整流段（6); 所述中心混凝反应筒 （2)的底部沿切线方 向设置有污水进口； 所述悬浮污泥过滤层 （5)外周设置有堰板（4) 形成集泥 槽（7), 并通过污泥溢出管（16)与污泥浓缩区（9)相连， 所述污泥浓缩区（9) 接有排泥管 （ 14 ); 斜板清水整流段（ 6 )上部沿罐壁设置有出水堰板（ 8 )形成 的清水出口并与出水管 （17)相连。
2、 根据权利要求 1所述的含油污水净化处理装置， 其特征在于， 所述中心 混凝反应筒 （2) 的底部设有搅拌器 （ 18), 其中， 搅拌器 （ 18) 的转速可调。
3、 根据权利要求 1所述的含油污水净化处理装置， 其特征在于， 所述污泥 浓缩区 （ 9 ) 的顶部设有污泥水出口 （ 19 ), 在所述污泥水出口 （ 19 ) 下方设有 挡气板（10), 挡气板 ( 10)上方设有排气管 （11)。
4、 根据权利要求 1所述的含油污水净化处理装置， 其特征在于， 所述污泥 浓缩区 （ 9 ) 内设有污泥斗 （ 15 )， 污泥斗 （ 15 )接有排泥管 （ 14 )。
5、根据权利要求 1至 4所述的任一种含油污水净化处理装置，其特征在于， 在所述污水进口之前设有污水提升泵（1)， 所述污水提升泵（1) ·的进出口管上 分别设置有加药口 （12)和备用加药口 （13)。
6
替换页（细则第 26条)
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