CN102336466A - Aerator and working method thereof - Google Patents
Aerator and working method thereof Download PDFInfo
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- CN102336466A CN102336466A CN2011101696331A CN201110169633A CN102336466A CN 102336466 A CN102336466 A CN 102336466A CN 2011101696331 A CN2011101696331 A CN 2011101696331A CN 201110169633 A CN201110169633 A CN 201110169633A CN 102336466 A CN102336466 A CN 102336466A
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- impeller
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- 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
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to a sewage treatment device and a working method thereof. The impeller of the device is reverse umbrella-type and comprises eight blades uniformly distributed in the radial direction, and the parts of the cross sections of the blades are positioned in the same plane and bent. The method comprises the following steps of: 1) starting a driving device, measuring the water level through a water level measuring instrument, and controlling lifting of a lifting device by a programmable logic controller (PLC) based on the measured data so that the impeller reaches the preset position; 2) starting the impeller, and slowly upgrading the revolving speed of the impeller to the normal revolving speed for working; and 3) monitoring dissolved oxygen quantity in water in real time through a dissolved oxygen measuring instrument, transmitting the detection data to the PLC, and controlling the operation of a speed adjusting device through the PLC so that the revolving speed of the impeller is adjusted to accord with the specified revolving speed. The device has the advantages of high stirring capacity, strong impelling capacity, high oxygen filling quantity, good treatment effect, dirt resistance, low energy consumption and the like.
Description
Technical field
The present invention relates to a kind of waste disposal plant and method of work thereof, relate to a kind of aerator and method of work thereof specifically.
Background technology
The oxidation ditch treatment process is extensively adopted by countries in the world as the two stage biological treatment technology that strong competitive power is arranged in municipal effluent and the Industrial Wastewater Treatment; In recent years because it has denitrogenation dephosphorizing ability and running maintenance convenience preferably; Become the first-selected technology of newly-built sewage work in China; In the sewage treatment project of whole nation commencement of commercial operation, oxidation ditch process accounts for 40% of sewage work's sum greatly.Oxidation ditch process is main with the surface aeration mode mainly, and the aerator that is adopted mainly contains: brush aeration machine, rotating disk aerator and inverted umbrella-shaped aeration machine, inverted umbrella-shaped aeration machine is used the most extensive because of having good oxygen-transfer efficiency and plug-flow ability.
The research and development production of the domestic impeller of falling umbrella aerator is started in the seventies, the impeller diameter of the enterprise's inverted umbrella-shaped aeration machine product of going together at present generally about 0.5～3m, the long-term dependence on import of the high-power inverted umbrella-shaped aeration machine of the above major diameter of 3m.And all remain on a position, with a rotating speed during its impeller work of existing aerator, can not make necessary adjustment, make sewage treating efficiency not satisfactory according to the real-time change of water.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide high aerator of a kind of operational efficiency and method of work thereof.
The technical scheme of the present invention's employing is for this reason: impeller of the present invention is down umbrella shape, comprises eight blades radially all establishing distribution, and each position of leaf cross-section is also bending in same plane.
Said impeller diameter is 4m.
Aerator of the present invention comprises drive unit and the transmission mechanism that is driven by drive unit, and the transmission mechanism lower end connects said impeller, includes the lifting device that said impeller is gone up and down on the transmission mechanism; Transmission mechanism is provided with the speed regulation device by PLC control, and the other end of PLC connects water stage measurement appearance and dissolved oxygen meter.
The method of work of aerator of the present invention, carry out according to following steps:
1) open drive unit, measure water level through the water stage measurement appearance, the data that record are gone up and down through PLC control lifting device, make impeller reach predeterminated position;
2) start impeller, make its rotating speed slowly be promoted to normal speed work;
3) monitor the dissolved oxygen amount in the water in real time through dissolved oxygen meter, and the data transmission that detection is obtained is to PLC, and, makes wheel speed be adjusted to rotating speed up to specification through the work of PLC control speed regulation device.
Advantage of the present invention is: 1) blade wheel structure form of the present invention can well be accomplished the oxygenation to water, has that stirring capacity is big, the plug-flow ability is strong, oxygenation capacity is high, treatment effect is good, do not hang advantages such as dirty; 2) the present invention has the lifting device of adjustment impeller height and the speed regulation device of adjustment wheel speed, can adjust the height and the rotating speed of impeller during use according to actual needs, to realize best way of economic operation, energy efficient.
Description of drawings
Fig. 1 is an aeration machine impeller structural representation of the present invention
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is an aerator structural representation of the present invention
Fig. 4 is an aerator workflow diagram of the present invention
Fig. 1 is that blade, 2 is that transmission shaft, 3 is that drive unit, 4 is that lifting device, 5 is shaft coupling.
Embodiment
Impeller of the present invention is down umbrella shape, comprises eight blades 1 radially all establishing distribution, and each position of blade 1 xsect is also bending in same plane.
Said impeller diameter is 4m.
Aerator of the present invention comprises drive unit 3 and the transmission mechanism that is driven by drive unit 3; The transmission mechanism lower end connects said impeller, includes the transmission shaft 2 that lifting device 4 that said impeller is gone up and down is connected with impeller and the shaft coupling 5 of connection lifting device 4 and transmission shaft 2 on the transmission mechanism; Transmission mechanism is provided with the speed regulation device by PLC control, and the other end of PLC connects water stage measurement appearance and dissolved oxygen meter.
The method of work of aerator of the present invention, carry out according to following steps:
1) open drive unit 3, measure water level through the water stage measurement appearance, the data that record are gone up and down through PLC control lifting device, make impeller reach predeterminated position;
2) start impeller, make its rotating speed slowly be promoted to normal speed work;
3) monitor the dissolved oxygen amount in the water in real time through dissolved oxygen meter, and the data transmission that detection is obtained is to PLC, and, makes wheel speed be adjusted to rotating speed up to specification through the work of PLC control speed regulation device.
Impeller diameter 4 000 mm of the present invention are made up of 8 blades 1, and blade 1 is uniform distribution radially, is down the shape of umbrella.The umbrella surface has blade 1 to be regular distribution, and umbrella point downwards during work, the umbrella body pivots in water.Blade wheel structure is designed to the form of straight blade and bending, can accomplish the oxygenation to water better.Impeller in manufacturing processed under expect that welding all passes through strict quality control, and after welding finishes, carry out balancing test, whole balance error is no more than ± 5 mm.
The present invention has powerful aeration, stir block, the three-in-one function of plug-flow; Its principle of work is: drive unit 3 drives the rotation of transmission shaft 2 drives impeller; Rotary blade promotes bottom sewage and mud along impeller back taper spirrillum; The sewage that the rises peripheral water body of carrying under one's arms throws away from the impeller edge, forms hydraulic jump and also wraps up in into a large amount of air and realize oxygenic aerations.And the pond bottom is contained the few mixed solution of oxygen upwards promote circulation, renewal; Simultaneously under the promotion and castering action of impeller rotation; Promote current in oxidation ditch with the helical state of water speed of＞0.3m/s circulation forward; Make active sludge intermixture maintenance suspended state in the ditch, satisfy the demand of biochemical process.
Aerator manufacturing process flow of the present invention is following: the structure basketry card according to the large-scale automatic adjusting impeller of falling umbrella aerator is used to instruct Production Flow Chart: materiology, and---the blanking operation------------------put in storage in electric installation in assembling (work is joined in pincers worker) in surperficial antirust processing in precision work in roughing by machine debugging---inspection after construction---.
Working process of the present invention: sensed water level → rotate according to water level automatic lifting impeller → open wheel beginning lowest speed, slowly with wheel speed be raised to normal operating conditions → begin in water automatic oxygenation and make active sludge in the water and the pond in the full and uniform mixing of sewage → make water the body design direction flows water is circulated in oxidation ditch along the pond.
Claims (4)
1. aeration machine impeller is characterized in that, is down umbrella shape, comprises eight blades radially all establishing distribution, and each position of leaf cross-section is also bending in same plane.
2. aeration machine impeller according to claim 1 is characterized in that, said impeller diameter is 4m.
3. an aerator that utilizes the said aeration machine impeller of claim 1 is characterized in that, comprises drive unit and the transmission mechanism that is driven by drive unit, and the transmission mechanism lower end connects said impeller, includes the lifting device that said impeller is gone up and down on the transmission mechanism; Transmission mechanism is provided with the speed regulation device by PLC control, and the other end of PLC connects water stage measurement appearance and dissolved oxygen meter.
4. a method of work of utilizing the said aerator of claim 3 is characterized in that, carries out according to following steps:
1) open drive unit, measure water level through the water stage measurement appearance, the data that record are gone up and down through PLC control lifting device, make impeller reach predeterminated position;
2) start impeller, make its rotating speed slowly be promoted to normal speed work;
3) monitor the dissolved oxygen amount in the water in real time through dissolved oxygen meter, and the data transmission that detection is obtained is to PLC, and, makes wheel speed be adjusted to rotating speed up to specification through the work of PLC control speed regulation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101696331A CN102336466A (en) | 2011-06-20 | 2011-06-20 | Aerator and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101696331A CN102336466A (en) | 2011-06-20 | 2011-06-20 | Aerator and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102336466A true CN102336466A (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101696331A Pending CN102336466A (en) | 2011-06-20 | 2011-06-20 | Aerator and working method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102336466A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013233507A (en) * | 2012-05-09 | 2013-11-21 | Sumitomo Heavy Industries Environment Co Ltd | Impeller |
| CN106745865A (en) * | 2016-12-23 | 2017-05-31 | 重庆市沃利克环保设备有限公司 | Double-layer combined aerator |
-
2011
- 2011-06-20 CN CN2011101696331A patent/CN102336466A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013233507A (en) * | 2012-05-09 | 2013-11-21 | Sumitomo Heavy Industries Environment Co Ltd | Impeller |
| CN106745865A (en) * | 2016-12-23 | 2017-05-31 | 重庆市沃利克环保设备有限公司 | Double-layer combined aerator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |