WO2018094621A1 - 污水生化处理装置 - Google Patents

污水生化处理装置 Download PDF

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Publication number
WO2018094621A1
WO2018094621A1 PCT/CN2016/106988 CN2016106988W WO2018094621A1 WO 2018094621 A1 WO2018094621 A1 WO 2018094621A1 CN 2016106988 W CN2016106988 W CN 2016106988W WO 2018094621 A1 WO2018094621 A1 WO 2018094621A1
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stirring blade
biochemical treatment
treatment device
mixing chamber
nozzle
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PCT/CN2016/106988
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English (en)
French (fr)
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李静
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李静
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Priority to PCT/CN2016/106988 priority Critical patent/WO2018094621A1/zh
Publication of WO2018094621A1 publication Critical patent/WO2018094621A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the invention relates to a sewage treatment device, in particular to a sewage gasification biochemical treatment device.
  • the invention provides a sewage biochemical treatment device, which can add air to the sewage while dispersing the air bubbles and thoroughly mixing with the water to provide sufficient oxygen to the biochemical bacteria.
  • a sewage biochemical treatment device comprising a plurality of fermentation tanks connected in series, each of which is provided with a gas agitation device comprising a coaxial and erected inner chamber a nozzle and an outer nozzle, wherein the outer nozzle is sequentially connected by a mixing chamber, a reduced diameter section and a diffusing section from top to bottom, and the inner nozzle is axially inserted into the outer nozzle from the upper end of the mixing chamber, and is inserted all the way to
  • the upper end of the reducing section is provided with a plurality of air inlet holes around the inner nozzle, and a stirring blade is arranged outside the diffusing section, and a shroud, a shroud, a diffusing section and a shroud are arranged on the outer circumference of the stirring blade.
  • the agitating blades are inserted into the fermentation tank from the upper port of the corresponding fermentation tank.
  • the shroud, the diffuser section and the stirring blade are inserted into the fermentation tank from the upper mouth of the fermentation tank, the air inlet hole is exposed to the atmosphere, and the circulating pump is used to pump water from the fermentation tank and then enter from the inner nozzle.
  • the water jet forms a jet, and the air is ejected from the air inlet hole.
  • the air is mixed with the sewage in the diffuser section and then exits from the diffuser section nozzle to form a large number of bubbles and fully mix with the sewage, while the stirring blade rotates.
  • the air bubbles When the sewage is stirred, the air bubbles will also generate agitating force during the ascending process, which will cause the liquid inside and outside the shroud to convect.
  • the stirring blade can further break the air bubbles, mix with the sewage, and dissolve a large amount of oxygen into the sewage to give biochemical bacteria in the sewage. Oxygen is supplied to better decompose the organic matter in the sewage; the device can complete the aeration and agitation at the same time by using a single device, which simplifies the structure and can be used in domestic sewage treatment.
  • the shroud has a downwardly large and small taper shape, and the agitating blade is provided with two or more layers, and the diameter of the entire agitating blade is reduced from the bottom to the top.
  • the gas entering the sewage does not rise straight, but rises along the inner wall of the shroud, which can have more contact with the sewage.
  • a further improvement is that a plurality of air holes are provided in the shroud. Part of the gas passes through the pores of the cloth, which can form more small bubbles, increase the contact area with the bubbles and the sewage, and achieve the purpose of more fully dissolving oxygen.
  • the shroud is connected to an outer nozzle or agitating blades.
  • the shroud can be rotated with the outer nozzle or the agitating blades.
  • the shroud can also be connected to the inner wall of the fermentation tank. This can reduce the moment of inertia of the outer nozzle and the stirring blade and reduce energy consumption.
  • the upper end of the inner nozzle is connected with a hollow positioning shaft via a flange, and the upper end of the positioning shaft is connected with a rotary joint, the positioning shaft is mounted on the bracket via a bearing, and the positioning shaft is drivingly connected with the transmission mechanism.
  • the transmission mechanism includes a transmission wheel mounted on the positioning shaft, and the transmission wheel is connected to the motor disposed on the fermentation tank via a transmission belt. Its power layout is simple and easy to repair.
  • adjacent fermentation tanks are connected via an overflow pipe, and the inlet of the rotary joint is connected to any of the fermentation tanks via a circulation pump. It can form a single cell cycle or a multi-pool cycle.
  • Figure 1 is a schematic view showing the partial structure of the present invention.
  • FIG. 2 is a schematic view showing the structure of a fermentation tank equipped with a gas agitation device.
  • 1 intake hole 1 inner nozzle, 2 inner nozzle, 3 mixing chamber, 4 reduced diameter section, 5 diffuser section, 6 positioning shaft, 7 stirring blade, 8 diversion cover, 9 cloth air hole, 10 bearing, 11 bracket, 12 Inlet tube, 13 swivel joint, 14 drive wheel, 15 fermentation tank, 16 drive belt, 17 motor, 18 overflow tube.
  • FIG. 1 and 2 it is a sewage biochemical treatment device having a plurality of fermentation tanks 15 connected in series, wherein one of the fermentation tanks 15 is provided with a gas agitation device, and the aeration stirring device comprises a coaxial and upright arrangement.
  • the inner nozzle 2 and the outer nozzle are respectively connected from the top to the bottom by the mixing chamber 3, the reduced diameter section 4 and the diffusing section 5, and the inner nozzle 2 is axially inserted into the outer spray from the upper end of the mixing chamber 3.
  • the inside of the tube is inserted into the upper mouth of the reduced diameter section 4, and the upper end of the mixing chamber 3 is provided with a plurality of air inlet holes 1 around the inner nozzle 2, and the agitating blades 7 are arranged outside the diffusing section 5, and the outer circumference of the stirring blade 7 is provided with a guide.
  • the flow hood 8, the shroud 8, the diffuser section 5, and the agitating blades 7 are inserted into the fermentation tank 15 from the upper port of the corresponding fermentation tank 15.
  • the shroud 8 has a large and small taper shape, and the agitating blades 7 are provided with two or more layers.
  • the diameter of the agitating blades 7 as a whole is reduced from bottom to top, and the air guiding cover 8 is provided with a plurality of air holes 9.
  • the shroud 8 is connected to the outer nozzle.
  • the upper end of the inner nozzle 2 is flanged with a hollow positioning shaft 6, and the upper end of the positioning shaft 6 is connected with a rotary joint 13.
  • the positioning shaft 6 is mounted on the bracket 11 via the bearing 10, and the positioning shaft 6 is drivingly connected with the transmission mechanism.
  • the transmission mechanism includes a transmission wheel 14 mounted on the positioning shaft 6, and the transmission wheel 14 and the motor 17 disposed on the fermentation tank 15 are drivingly connected via the transmission belt 16;
  • the adjacent fermentation tanks 15 are connected via an overflow pipe 18, and the inlet pipe 12 of the rotary joint 13 is connected to any of the fermentation tanks 15 via a circulation pump.
  • the shroud 8, the diffuser section 5 and the agitating blades 7 are inserted into the fermentation tank 15 from the upper port of the fermentation tank 15, and the intake port 1 is exposed to the atmosphere, and the pump is pumped from the fermentation tank 15 by a circulation pump.
  • the inner nozzle 2 enters, and under the action of the diffusing section 5, the water flows to form a jet, and the air is exhausted from the air inlet hole 1, and the air is mixed with the sewage in the diffusing section 5, and then exits from the nozzle of the diffusing section 5, forming a large amount.
  • the bubbles are thoroughly mixed with the sewage, and the stirring blade 7 rotates to agitate the sewage, and during the ascending process, the stirring force is generated to promote the convection of the liquid inside and outside the shroud 8.
  • the stirring blade 7 can further break the bubbles and mix with the sewage. a large amount of oxygen is dissolved in the sewage to supply oxygen to the biochemical bacteria in the sewage to better decompose the organic matter in the sewage; the device performs a sewage circulation between the single fermentation tank or the plurality of fermentation tanks through the circulation pump due to the biochemical bacteria A relatively stable implantation environment is also required.
  • the manner in which the multiple pools are connected in series through the overflow ensures that some of the biochemical pools are less disturbed, and the biochemical bacterial community can stably divide and proliferate.
  • the device can complete the aeration and agitation at the same time, simplifying the structure, and it can be used in domestic sewage treatment.
  • the present invention is not limited to the above embodiments, and based on the technical solutions disclosed by the present invention, those skilled in the art can make some substitutions for some of the technical features without any creative labor according to the disclosed technical content. Modifications, such substitutions and modifications are within the scope of the invention.
  • a structure different from the above embodiment may be employed to connect the shroud to the inner wall of the fermentation tank or to the stirring blade.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

涉及环保设备领域内的污水生化处理装置，包括串联连接的多个发酵池（15），任一发酵池（15）内设有加气搅拌装置，所述加气搅拌装置包括同轴且直立设置的内喷管（2）和外喷管，所述外喷管由上至下由混合室（3）、缩径段（4）和扩压段（5）顺序连接而成，内喷管（2）轴向从混合室上端***外喷管内，并一直***到缩径段（4）的上口，混合室（3）上端位于内喷管（2）周围设有若干进气孔（1），所述扩压段（5）外设有搅拌叶片（7），搅拌叶片（7）外周设有导流罩（8），导流罩（8）、扩压段（5）和搅拌叶片（7）从相应发酵池（15）的上口***发酵池（15）内。工作时，水流形成射流，从进气孔（1）引射空气，大量气泡并与污水充分混合，搅拌叶片可以把气泡进一步打碎，使大量氧气溶入污水中，给污水中的生化细菌提供氧气，其可用于生活污水处理中。

Description

污水生化处理装置 技术领域
本发明涉及一种污水处理装置，特别涉及一种污水加气生化处理装置。
背景技术
现有的污水生化处理技术领域中，常常需要在污水中加入氧气，以提供特定菌群的有氧呼吸，保持细菌的活性，以便更好地分解污水中的有机物，在加入氧气时，需要有气泵或空压机向液体中注入空气，还需要有搅拌装置给其搅拌，使空气形成小的气泡，与水更好地混合。其不足之处在于：现有的搅拌装置和加气装置相分离，其结构复杂，需要有相互独立的驱动***。两者独立工作时，污水中的氧溶解量小，效率低下；而搅拌装置在没有气参与的情况下，其搅拌动力差，搅拌不均匀。
发明内容
本发明提供污水生化处理装置，使其能在污水中加入空气的同时，能将气泡打散，并与水充分混合，以给生化细菌提供足够的氧气。
本发明的目的是这样实现的：一种污水生化处理装置，包括串联连接的多个发酵池，任一发酵池内设有加气搅拌装置，所述加气搅拌装置包括同轴且直立设置的内喷管和外喷管，所述外喷管由上至下由混合室、缩径段和扩压段顺序连接而成，内喷管轴向从混合室上端***外喷管内，并一直***到缩径段的上口，混合室上端位于内喷管周围设有若干进气孔，所述扩压段外设有搅拌叶片，搅拌叶片外周设有导流罩，导流罩、扩压段和搅拌叶片从相应发酵池的上口***发酵池内。
该装置工作时，导流罩、扩压段和搅拌叶片从发酵池的上口***发酵池内，进气孔露在大气中，利用循环泵从发酵池中抽水，再从内喷管进入，在扩压段作用下，水流形成射流，从进气孔引射空气，空气在扩压段内与污水混合后再从扩压段管口离开，形成大量气泡并与污水充分混合，同时搅拌叶片旋转搅动污水，气泡在上升过程中，也会产生搅动力，促使导流罩内外的液体对流，搅拌叶片可以把气泡进一步打碎，与污水混合，大量氧气溶入污水中，给污水中的生化细菌提供氧气，使其更好地分解污水中的有机物；该装置利用一套装置即可同时完成加气和搅拌作用，简化了结构，其可用于生活污水处理中。
作为本发明的进一步改进在于，所述导流罩呈下大上小的锥形，所述搅拌叶片设有两层以上，搅拌叶片整体的直径从下向上逐层缩小。进入污水内的气体不会直线上升，而是沿导流罩内壁上升，其可以与污水有更多的接触机会。
其进一步改进在于所述导流罩上设有若干布气孔。部分气体穿过布气孔，可以形成更多的小气泡，增大与气泡与污水的接触面积，达到更加充分溶解氧气的目的。
作为本发明的进一步改进，所述导流罩与外喷管或搅拌叶片相连。这样导流罩可以和外喷管或搅拌叶片一起旋转。更进一步地，导流罩还可以与发酵池内壁相连。这样可以减小外喷管和搅拌叶片的转动惯量，降低能耗。
为便于传动，所述内喷管上端经法兰连接有中空的定位轴，定位轴的上口连接有旋转接头，定位轴经轴承安装在支架上，定位轴与传动机构传动连接。所述传动机构包括安装在定位轴上的传动轮，传动轮与发酵池上设置的电机经传动带传动连接。其动力布置简单，检修方便。
作为本发明的进一步改进在于，相邻发酵池之间经溢流管相连接，旋转接头的进口经循环泵与任一发酵池相连。其可以形成单池循环，也可以形成多池循环。
附图说明
图1为本发明局部结构示意图。
图2为安装有加气搅拌装置的发酵池的结构示意图。
其中，1进气孔，2内喷管，3混合室，4缩径段，5扩压段，6定位轴，7搅拌叶片，8导流罩，9布气孔，10轴承，11支架，12进液管，13旋转接头，14传动轮，15发酵池，16传动带，17电机，18溢流管。
具体实施方式
下面举例进行具体说明
如图1、2所示，为一种污水生化处理装置，其有串联连接的多个发酵池15，其中一个发酵池15内设有加气搅拌装置，加气搅拌装置包括同轴且直立设置的内喷管2和外喷管，外喷管由上至下由混合室3、缩径段4和扩压段5顺序连接而成，内喷管2轴向从混合室3上端***外喷管内，并一直***到缩径段4的上口，混合室3上端位于内喷管2周围设有若干进气孔1，扩压段5外设有搅拌叶片7，搅拌叶片7外周设有导流罩8，导流罩8、扩压段5和搅拌叶片7从相应发酵池15的上口***发酵池15内。导流罩8呈下大上小的锥形，搅拌叶片7设有两层以上，搅拌叶片7整体的直径从下向上逐层缩小，导流罩8上设有若干布气孔9。导流罩8与外喷管相连。
内喷管2上端经法兰连接有中空的定位轴6，定位轴6的上口连接有旋转接头13，定位轴6经轴承10安装在支架11上，定位轴6与传动机构传动连接。传动机构包括安装在定位轴6上的传动轮14，传动轮14与发酵池15上设置的电机17经传动带16传动连接； 相邻发酵池15之间经溢流管18相连接，旋转接头13的进液管12经循环泵与任一发酵池15相连。
工作时，导流罩8、扩压段5和搅拌叶片7从发酵池15的上口***发酵池15内，进气孔1露在大气中，利用循环泵从发酵池15中抽水，再从内喷管2进入，在扩压段5作用下，水流形成射流，从进气孔1引射空气，空气在扩压段5内与污水混合后再从扩压段5管口离开，形成大量气泡并与污水充分混合，同时搅拌叶片7旋转搅动污水，气泡在上升过程中，也会产生搅动力，促使导流罩8内外的液体对流，搅拌叶片7可以把气泡进一步打碎，与污水混合，大量氧气溶入污水中，给污水中的生化细菌提供氧气，使其更好地分解污水中的有机物；该装置通过循环泵在单个发酵池或多个发酵池之间进行污水循环，由于生化细菌也需要相对稳定的着床环境，因此，通过溢流使得多池串联的方式，保证了部分生化池扰动较小，生化细菌群落能安定地***增生。该装置即可同时完成加气和搅拌作用，简化了结构，其可用于生活污水处理中。
本发明并不局限于上述实施例，在本发明公开的技术方案的基础上，本领域的技术人员根据所公开的技术内容，不需要创造性的劳动就可以对其中的一些技术特征作出一些替换和变形，这些替换和变形均在本发明的保护范围内。例如可采用区别于上述实施例的结构，使导流罩与发酵池内壁相连或与搅拌叶片相连。

Claims (7)

  1. 一种污水生化处理装置，包括串联连接的多个发酵池，任一发酵池内设有加气搅拌装置，其特征在于：所述加气搅拌装置包括同轴且直立设置的内喷管和外喷管，所述外喷管由上至下由混合室、缩径段和扩压段顺序连接而成，内喷管轴向从混合室上端***外喷管内，并一直***到缩径段的上口，混合室上端位于内喷管周围设有若干进气孔，所述扩压段外设有搅拌叶片，搅拌叶片外周设有导流罩，导流罩、扩压段和搅拌叶片从相应发酵池的上口***发酵池内。
  2. 根据权利要求1所述的污水生化处理装置，其特征在于：所述导流罩呈下大上小的锥形，所述搅拌叶片设有两层以上，搅拌叶片整体的直径从下向上逐层缩小。
  3. 根据权利要求2所述的污水生化处理装置，其特征在于：所述导流罩上设有若干布气孔。
  4. 根据权利要求1-3任意一项所述的污水生化处理装置，其特征在于：所述导流罩与发酵池内壁相连。
  5. 根据权利要求1-3任意一项所述的污水生化处理装置，其特征在于：所述导流罩与外喷管或搅拌叶片相连。
  6. 根据权利要求1-3任意一项所述的污水生化处理装置，其特征在于：所述内喷管上端经法兰连接有中空的定位轴，定位轴的上口连接有旋转接头，定位轴经轴承安装在支架上，定位轴与传动机构传动连接。
  7. 根据权利要求6所述的污水生化处理装置，其特征在于：所述传动机构包括安装在定位轴上的传动轮，传动轮与发酵池上设置的电机经传动带传动连接。
PCT/CN2016/106988 2016-11-23 2016-11-23 污水生化处理装置 WO2018094621A1 (zh)

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CN108949514B (zh) * 2018-07-26 2021-01-05 江苏丰泽生物工程设备制造有限公司 一种带导流装置发酵设备
CN112830564A (zh) * 2021-01-18 2021-05-25 中科华宝股份有限公司 一种垃圾渗滤浓缩液处理装置
CN113620437A (zh) * 2020-05-09 2021-11-09 无锡博泛特工程设备有限公司 一种二氧化碳废水降低硬度处理***
CN114288939A (zh) * 2022-03-09 2022-04-08 山东彩客东奥化学有限公司 可调节药剂用量的聚酰亚胺生产废水处理装置及处理工艺
CN115043550A (zh) * 2022-06-24 2022-09-13 苏州城投环境科技发展有限公司 一种环保污水处理装置及其处理方法
CN115478602A (zh) * 2022-10-17 2022-12-16 乐清市园林绿化管理所 一种生态园林水循环***

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CN108949514B (zh) * 2018-07-26 2021-01-05 江苏丰泽生物工程设备制造有限公司 一种带导流装置发酵设备
CN113620437A (zh) * 2020-05-09 2021-11-09 无锡博泛特工程设备有限公司 一种二氧化碳废水降低硬度处理***
CN112830564A (zh) * 2021-01-18 2021-05-25 中科华宝股份有限公司 一种垃圾渗滤浓缩液处理装置
CN114288939A (zh) * 2022-03-09 2022-04-08 山东彩客东奥化学有限公司 可调节药剂用量的聚酰亚胺生产废水处理装置及处理工艺
CN115043550A (zh) * 2022-06-24 2022-09-13 苏州城投环境科技发展有限公司 一种环保污水处理装置及其处理方法
CN115478602A (zh) * 2022-10-17 2022-12-16 乐清市园林绿化管理所 一种生态园林水循环***

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