CN2403494Y - Air lift air stirring reactor - Google Patents
Air lift air stirring reactor Download PDFInfo
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- CN2403494Y CN2403494Y CN99255621U CN99255621U CN2403494Y CN 2403494 Y CN2403494 Y CN 2403494Y CN 99255621 U CN99255621 U CN 99255621U CN 99255621 U CN99255621 U CN 99255621U CN 2403494 Y CN2403494 Y CN 2403494Y
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- reactor
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- center pipe
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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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Abstract
The utility model particularly relates to an air lift type air stirring reactor, comprising a circular reactor outer pipe, an upper end cover and an outer center pipe. The utility model is characterized in that the inner part of the outer center pipe is provided with a thinner inner center pipe; the lower ends of the outer center pipe and the inner center pipe are connected and sealed by a ring; the upper ends of the outer center pipe and the inner center pipe are connected by a supporting plate; the three pipes keep proper distances; the inner center pipe is provided with a small hole on the bottom at definite height; the inner part of the reactor is provided with a transverse rod which is connected with the inner wall of the circular reactor outer pipe and is arranged above the inner center pipe and the outer center pipe; a cambered baffle plate is hung on the transverse rod. The utility model provides fast and uniformly mixed dynamic force for reaction medium.
Description
The utility model belongs to gas, liquid, solid two-phase or three-phase chemical industry operation reactor, particularly gas-lifting type air stirred reactor.
The initial period of chemical industry and hydrometallurgy industry, adopt mechanically stirred reactor more, its advantage is that speed of agitator, direction can be regulated, the scope of application is wider.But in application process, also there are many problems: as under high temperature, condition of high voltage, operating, the sealing of axle is a big problem, maintenance of device interior simultaneously and maintenance are all very inconvenient, and main problem is just to amplify very difficulty again after mechanically stirred reactor is amplified to certain scale.
Along with the progress and the industrial expansion of science and technology, gas-lifting type air stirred reactor has appearred in the research of reactor.At metallurgy, oil, chemical industry, pharmacy, fields such as wastewater treatment widely used gas-lifting type air stirred reactor is the tubular reactor that the principle of utilizing the jet flow of fluid produce to stir mixes reaction system, reactor center is installed a vertical blank pipe (central tube), the air inlet jet pipe inserts from the outer tube tapered bottom end, nozzle is concordant with central tube, when air is blown into certain flow rate, in central tube, cause negative pressure, solid on every side, liquid is inhaled into central tube from the bottom, and the gas with big kinetic energy is carried to the top, kinetic energy is converted into potential energy, be converted in the process of kinetic energy at potential energy, return outer tube again, so move in circles, mix, and carry out chemical reaction thereby reach.Do not have moving component in this reactor, power consumption is few, and relatively simple for structure, thereby is widely used always.
Yet when above-mentioned crust groove reactor be applied to light, when weighing two immiscible liquid phase reactors, when light when few with respect to heavy phase, the weak point of finding this structure is: (1), owing to gently compare quantity few (1%-5%) with the liquid in the former system, density contrast is big (0.1-0.2), a part can only swim in above the heavy phase in air blowing process, promptly can't all circulate in reactor, again can not be broken, more do not reach even mixing, reactor inner transmission matter effect extreme difference.(2), because great majority crust groove is uncovered, the light gas that very easily is passed into mutually carries volatilization, and the influence reaction is carried out.
The purpose of this utility model is the shortcoming that overcomes former crust groove reactor, provide a kind of light, when weighing two immiscible liquid phase reactors, can reach good mixing at short notice, and the light gas-lifting type air stirred reactor simple in structure that can not overflow mutually.
The technical solution of the utility model is: comprise circular reactor outer tube 13, flange 10, packing ring 7, conical bottom 9, the upper end cover 1 that has thief hole 2, thermometer hole 15 and exterior central tube 14, it is characterized in that being equipped with in the exterior central tube 14 thinner inner central tube 4, be connected with ring seal between its exterior central tube 14 and inner central tube 4 lower ends, the upper end connects by gripper shoe 17, keeps suitable spacing between three pipes; Have several apertures 6 at inner central tube 4 apart from its certain altitude place, bottom (as required); In reactor, have one to be connected with circular reactor outer tube 13 inwalls and cross bar 16, one curved baffles 3 above inner central tube 4 and exterior central tube 14 are suspended on the cross bar 16.Stainless steel breather pipe 12 inserts from the conical lower portion air admission hole 8 of reactor.Gripper shoe 17 can be provided with a plurality of as required.
The utility model is that a thinner central tube (inner central tube) has been installed again in the central tube of former crust groove reactor, keep suitable spacing between three pipes, inside and outside central tube lower end closed is connected, make the lower end flow regime of systemic circulation in the inner and outer pipe identical with lower end flow regime in the former gas-lifting type air stirred reactor, open simultaneously the aperture of some, make that medium forms the partial circulating that does not have in the former reactor between the inside and outside central tube in the inner central tube lower end.Reactor can be according to application conditions, environmental selection different materials.
Whole reactor is connected with tapered bottom end upper end cover by flange, packing ring with the reactor outer tube, to reach excellent sealing, prevent from gently to volatilize mutually and medium contaminated; Adopt nut to flexibly connect between reactor outer tube and the exterior central tube, helping the reactor dismounting cleans: exterior central tube and inner central tube lower end closed, in making, the lower end flow regime of big partial circulating is identical with lower end flow regime in the former crust groove reactor in the outer tube, the aperture that some is opened in the inner central tube lower end is in guaranteeing, form partial circulating between the exterior central tube, when arriving between two pipes bottom, reaction medium enters inner central tube because the negative pressuren zone that gas flow forms is carried between each pipe of reactor by gas and circulates with bigger speed by the perforate sudden contraction; Lift a curved baffle by cross bar above the central tube of reactor, its slightly larger in diameter is in exterior central tube, when uprising gas carries liquid-liquid, when liquid-solid phase rises, curved baffle the splashing of phase that can prevent to rise is converted into kinetic energy with its potential energy, and strengthening rises returns the speed of each pipe mutually.In addition, electric heating tube is housed also in the reactor, by the contact thermometer temperature control, the thermometer that inserts reactor from upper end cover is in order to observe process temperature.Thief hole is tightened by nut, turns on during sampling, simultaneously so as to bleeding off the accumulation air, reduces reactor pressure.
The utility model reactor is applied to other fields such as oil, chemical industry, biological metallurgy, pharmacy can obtain good result equally.
The fluid circulation is divided into two parts in the utility model gas-lifting type air stirred reactor:
A. central tube partial circulating: above when the beginning air-blowing gently gas carry and the curved baffle effect under
Flow downward between two central tubes, and mix with the air-flow particle or the ore deposit of carrying that constantly move upward, with
In time, be broken, the partial circulating in forming between the exterior central tube.
B. central tube systemic circulation: the light phase that is broken, in arriving between the exterior central tube bottom the time by bottom opening
The negative pressure that forms sucks inner central tube again, is carried between each pipe of reactor by gas and carries out systemic circulation.
Fluid reaches when stablizing two circulations and carries out simultaneously in the utility model gas-lifting type air stirred reactor, has promptly prevented the coalescence of light phase, reaches mixed uniformly effect again.Fig. 3, Fig. 4 has done contrast to gas phase, light motion state and effect mutually in the utility model reactor and the former crust groove reactor, table 1 provided light phase liquid-drop diameter in the utility model in time moment the data that reduce, experimental result shows, mass-transfer performance is good in the utility model reactor after the improvement, reaction speed is fast, and do not stir because of there being machinery, shearing force is little, the growth of microorganism situation is good, thereby obtain higher oil removal rate than former gas-lifting type air stirred reactor, and help the microorganism cycling and reutilization.
Table 1: light phase liquid-drop diameter is delta data in time
| Time (min) | 2 | 4 | 6 | 8 | 10 |
| Liquid-drop diameter (μ m) | 20.90 | 15.28 | 12.60 | 12.40 | 12.4 |
The utility model has not only guaranteed the good flow situation of solution-air-liquid (or gas-liquid-solid) medium between three spaces in when ventilation reactor, and because the formation of big negative pressure in the inner central tube, for reaction medium provides quick, mixed uniformly power.Light oil phase diameter can drop to 12 μ m from 20 μ m in 10 minutes in reactor of the present utility model.
Below in conjunction with drawings and Examples the technical solution of the utility model is further described.
Fig. 1 the utility model structure of reactor vertical profile schematic diagram;
The cross-sectional schematic diagram of each pipe connecting structure of Fig. 2 the utility model reactor;
The diffusion process of reaction medium and dispersion situation schematic diagram in Fig. 3 the utility model reactor;
A
1: initial state, add in the reactor a certain proportion of water with gently mutually;
A
2: begin ventilation, carry out light mutually by the partial circulating under inhaling, light simultaneously between two central tubes mutually by broken
Broken;
A
3: moment after the ventilation, systemic circulation begins, and is light mutually by further broken;
A
4: behind the certain hour, the light phase breakup of drop is mixed fully to a certain size and with water, beginning
Stable circulation;
The diffusion process of reaction medium and dispersion situation schematic diagram in the former gas-lifting type air of Fig. 4 stirred reactor;
B
1: initial state, add in the crust groove a certain proportion of water with gently mutually;
B
2: begin ventilation, gently float over above the water mutually and do not move downward;
B
3: gently begin mutually to move downward after reaching certain gas speed, but liquid-drop diameter is bigger, and very fast
Coalescence;
B
4: reach stable state, above the reactor upper strata still has and gently floats over mutually on a small quantity, do not reach fully and mix;
Moment reduces figure to light phase liquid-drop diameter in time in Fig. 5 the utility model reactor.The icon title:
1. upper end cover 2. thief holes 3. curved baffles 4. inner central tubes 5. electric heating tubes 6. holes
7. packing ring 8. air admission holes 9. conical bottom 10. flanges 11. screws
12. breather pipe 13. reactor outer tube 14. exterior central tubes, 15. thermometer holes and thermometers
16. cross bar 17. gripper shoes 18. support bars 19. nuts 20. light oil phases
21. bubble 22. oil droplets
Embodiment 1.
The utility model reactor is applied in the bacterial treatment oily waste water.
In dischargeable capacity is the former gas-lifting type air of the lucite type stirred reactor, the utility model reactor of 6.8L, carry out respectively, in two reactors the electrothermal tube automatic temp controller is housed all.With the 6L aseptic culture fluid, cultured bacterium liquid of 300mL and 60mL light oil phase (dodecane) add respectively in two sterilized reactors, tighten reactor upper end cover 8, sealed reactor, the reactor outer tube diameter is Φ 180mm, the exterior central tube internal diameter is Φ 100mm, the inner central tube internal diameter is Φ 60mm, reactor outer tube and exterior central tube are connected and fixed with support bar, exterior central tube and inner central tube upper end are connected and fixed with gripper shoe, the lower end is connected and fixed with sealing plate, and diameter is 50mm place, exterior central tube top in the curved baffle of 120mm hangs over.Air is sterilized the back after filtration by 12 introducings of bottom breather pipe, and the adjusting throughput is 0.25m
3/ h, temperature is controlled to be 25 ℃.Upper strata light oil carried at ascending air and at first enters inner central tube 4 down when the utility model reactor began to ventilate, begin the inner central tube partial circulating in its bottom owing to suction function, under the gas effect, enter exterior central tube 14 then, the beginning outer circulation also reaches even mixing very soon, and has only fluid single cycle situation in the former gas-lifting type air stirred reactor.
Every 6 hours from the laggard promoting the circulation of qi analysis of hplc of thief hole 2 sampling 100mL extract and separate, degradation time is 192 hours.The biodegradation of different time oil phase the results are shown in subordinate list 2.
The former gas-lifting type 44.82 40.00 38.21 30.15 26.77 22.53 18.55 19.02 17.19 air stirred reactors (g/L) of the new 44.82 40.51 32.08 21.80 11.58 10.26 9.54 8.51 5.11 type reactors (g/L) of 0 24 48 72 96 120 144 168 192 practicalities of the transformation period of dodecane concentration (hr) in table 2 biodegradation process
Claims (1)
1. gas-lifting type air stirred reactor, comprise circular reactor outer tube (13), flange (10), packing ring (7), conical bottom (9), the upper end cover (1) that has thief hole (2), thermometer hole (15) and exterior central tube (14), it is characterized in that being equipped with in the exterior central tube (14) thinner inner central tube (4), be connected with ring seal between its exterior central tube (14) and inner central tube (4) lower end, the upper end connects by gripper shoe (17), makes the suitable spacing of maintenance between three pipes; Have aperture (6) at inner central tube (4) apart from its certain altitude place, bottom; In reactor, have one to be connected with circular reactor outer tube (13) inwall and at the cross bar (16) of inner central tube (4) and exterior central tube (14) top, a curved baffle (3) is suspended on the cross bar (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99255621U CN2403494Y (en) | 1999-12-09 | 1999-12-09 | Air lift air stirring reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99255621U CN2403494Y (en) | 1999-12-09 | 1999-12-09 | Air lift air stirring reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403494Y true CN2403494Y (en) | 2000-11-01 |
Family
ID=34038949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99255621U Expired - Fee Related CN2403494Y (en) | 1999-12-09 | 1999-12-09 | Air lift air stirring reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403494Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406398C (en) * | 2006-08-29 | 2008-07-30 | 华南理工大学 | Sequential air lifting circulation waste water biological treatment reactor and its process |
| CN102580350A (en) * | 2012-03-14 | 2012-07-18 | 中国科学院过程工程研究所 | Airlift air stirring multi-sublayer circulating extraction device and method |
| CN102838171A (en) * | 2012-08-28 | 2012-12-26 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| EP2540677A4 (en) * | 2010-08-19 | 2016-09-28 | Nanjing University Of Technology | Contact reaction tower with internal circulation ozone used in industrial wastewater advanced treatment |
| CN106745710A (en) * | 2017-02-20 | 2017-05-31 | 沈阳建筑大学建筑设计研究院 | A kind of reinforcement sludge aerator |
-
1999
- 1999-12-09 CN CN99255621U patent/CN2403494Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406398C (en) * | 2006-08-29 | 2008-07-30 | 华南理工大学 | Sequential air lifting circulation waste water biological treatment reactor and its process |
| EP2540677A4 (en) * | 2010-08-19 | 2016-09-28 | Nanjing University Of Technology | Contact reaction tower with internal circulation ozone used in industrial wastewater advanced treatment |
| CN102580350A (en) * | 2012-03-14 | 2012-07-18 | 中国科学院过程工程研究所 | Airlift air stirring multi-sublayer circulating extraction device and method |
| CN102580350B (en) * | 2012-03-14 | 2014-07-02 | 中国科学院过程工程研究所 | Airlift air stirring multi-sublayer circulating extraction device and method |
| CN102838171A (en) * | 2012-08-28 | 2012-12-26 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| CN102838171B (en) * | 2012-08-28 | 2014-10-22 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| CN106745710A (en) * | 2017-02-20 | 2017-05-31 | 沈阳建筑大学建筑设计研究院 | A kind of reinforcement sludge aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |