CN101549261A - Improved-blade type disc turbine stirring device - Google Patents
Improved-blade type disc turbine stirring device Download PDFInfo
- Publication number
- CN101549261A CN101549261A CNA2008101032625A CN200810103262A CN101549261A CN 101549261 A CN101549261 A CN 101549261A CN A2008101032625 A CNA2008101032625 A CN A2008101032625A CN 200810103262 A CN200810103262 A CN 200810103262A CN 101549261 A CN101549261 A CN 101549261A
- Authority
- CN
- China
- Prior art keywords
- disc turbine
- improved
- stirring device
- blade type
- type disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to an improved-blade type disc turbine stirring device which comprises a stirring tank and a stirring shaft positioned in the stirring tank, wherein an improved-blade type disc turbine impeller is installed on the stirring shaft, the ratio of the impeller diameter and the tank diameter (D) is equal to D/4-D/2, 4-12 vertical baffle plates are evenly installed in the circumferential direction of the tank wall, and the width of each baffle plate is D/12-D/10. Compared with the traditional disc turbine, the improved-blade type disc turbine stirring device is characterized in that 4-12 rectangular impeller blades vertically and evenly distributed above and below a disc in a staggered manner, and each impeller blade has a height of D/15-D/10 and a width of D/8-D/4. The improved-blade type disc turbine stirring device makes up the defect of axial mixing capacity of the stirring devices of the type on the basis of having the advantages of the ordinary radial flow impeller, reduces the mixing time and improves the gas and solid dispersing power.
Description
Technical field
The invention belongs to the heterogeneous mixed stirring device of hydrometallurgy, environmental protection, biochemical pharmacy and field of petrochemical industry, the solid that is particularly suitable for heterogeneous system such as gas-liquid-solid, liquid-solid suspends, evenly mixes and the heterogeneous chemical reaction process.
Background technology
The paddle of industrial application is divided into two classes according to the flow field difference of its formation, one class is radial flow impeller (as the Rushton paddle), this oar has bigger shearing force and very strong gas dispersion ability, broken and dispersion for bubble, effect is obvious, be suitable for gas-liquid two-phase mixed process, energy consumption also is lower than other type paddle in the stirring system of high solid holdup; Another kind of is axial flow impeller (as screw), and this oar has stronger axial circulation ability and lower power consumption, has obtained using widely in solid suspension and liquid-solid mixed process.And when in mechanical agitating tank, carrying out the gas-liquid-solid three-phase married operation, to realize simultaneously that gas disperses and solid two processes that suspend the end of from fully fully, desirable mixed-level not only require to reach the two on macroscopic view evenly, and on microcosmic mixes, also to reach certain uniformity, for this design to paddle has proposed higher requirement.At a high speed the impeller of rotation produces flows, and its radial velocity is that gas is sheared the major impetus of disperseing, and its axial velocity to be solid suspend and the major impetus of liquid axial circulation.Not only require impeller to have stronger shearing dispersibility to three-phase system, and certain axially mixing ability to be arranged, disperse simultaneously to reach three-phase, so it is complicated that problem just becomes, single runoff oar or axial flow oar evenly mix when all can not realize three-phase, normal double-deck oar and even three layers of oar of adopting reach the purpose that three-phase mixes in the industrial practice, and this will increase the consumption of energy undoubtedly.
In research and development to novel paddle, domestic most of patent and research concentrate on the improvement of blade shape and the invention of agitating device annex, such as a kind of enamel air foil profile axial flow paddle (Chinese patent, application number 03231827.8), a kind of paddle (Chinese patent, application number 200620064206.1) and combined surface aeration stirring paddle (Chinese patent, application number 00102745.X), not about the relevant patent and the report of the asymmetric blade paddle that can improve flow pattern.
Summary of the invention
The objective of the invention is to overcome the defective of radial flow impeller ability aspect axial mixing, provide a kind of axial mixing ability is improved, incorporation time reduces, the solid heterogeneous agitating device of the gas-liquid that the gas dispersion ability is stronger.
Specific embodiments of the present invention is as follows:
A kind of improved-blade type disc turbine stirring device, comprise a tank diameter 2, one is positioned at the shaft 1 of tank diameter 2, improved-blade type disc turbine oar 6 of the present invention is installed on shaft 1, oar footpath with the ratio calculation in groove footpath (D): D/4-D/2, cell wall is circumferentially evenly installed 4-12 upright baffle 4, barrier width D/12-D/10.Compare with traditional disc turbine, it is characterized in that: 4-12 sheet rectangle blade 5 is installed, the staggered disk upper and lower, paddle size of vertically being uniformly distributed in: high D/15-D/10, wide D/8-D/4 on the disk.
A kind of improved-blade type disc turbine stirring device of the present invention, under the air agitation state, disk can stop bubble directly to pass paddle, reduced the spotting out rotating speed, simultaneously because the high shear force and the action of centrifugal force of impeller, gas can outwards reverse from the center along dull and stereotyped, and is crashed to pieces into tiny bubble and is distributed in around the blade, and then circulates in groove with liquid.Disk blade alternate up and down produces Radial Flow, two radial flows that produce are propagated as two train waves, and generation coupling effect, speed produces certain fluctuation (suspending favourable to solids), make that the stability and the continuity in flow field, impeller working region are broken, and might diffuse to whole flow field, so not only enlarged the blade working region, and axially producing flowing of zonule, in addition, the baffle plate of installing makes the interior peripheral flow of groove convert axial flow up and down to after bumping against with it, has promoted axial mixing, has remedied the defective of runoff oar.
In a word, improved-blade type disc turbine stirring device provided by the present invention on the basis that has common radial flow impeller advantage, has remedied the deficiency of this class agitating device on axial mixing ability, and has shortened incorporation time, has improved the gas dispersion ability.
Description of drawings
Accompanying drawing 2 is the structural representation of a kind of improved-blade type disc turbine stirring device of the present invention;
Accompanying drawing 3 is the structural representation of paddle among the present invention.
Wherein: shaft 1 tank diameter 2 gas-liquid interfaces 3
Baffle plate 4 blades 5 modified form disc turbines 6
Embodiment
Attached Fig. 1 and 2 is the structural representation of two embodiment of the present invention.As seen from the figure, improved-blade type disc turbine stirring device provided by the invention, comprise: a tank diameter 2, one is positioned at the shaft 1 of tank diameter, improved-blade type disc turbine oar 6 of the present invention is installed on shaft 1, oar footpath with the ratio calculation in groove footpath (D): D/4-D/2, cell wall circumferentially evenly install 4-12 upright baffle 4, barrier width D/12-D/10.Compare with traditional disc turbine, it is characterized in that: 4-12 sheet rectangle blade 5 is installed, the staggered disk upper and lower, paddle size of vertically being uniformly distributed in: high D/15-D/10, wide D/8-D/4 on the disk.
Accompanying drawing 1 is the schematic diagram of normally used Rushton disc turbine oar tank diameter, and accompanying drawing 2 is a kind of improved-blade type disc turbine stirring device schematic diagram of the present invention, and accompanying drawing 3 is the structural representation of paddle among the present invention.
Embodiment 1:
At the gas-liquid-solid three-phase system, in 380 millimeters of internal diameter Φ, high 600 millimeters, cylindrical flat uncovered tank diameter that the wall inboard is symmetrical arranged 4 baffle plates, it is 2.403g/cm that solid phase adopts density
3, the bead of particle size range 4.00-4.10 millimeter, liquid and gas are respectively water and air from the beginning, and liquid level is high 380 millimeters in the groove, and the tank diameter barrier width is 38 millimeters; Accompanying drawing 1 device adopts traditional standard 6 blade Rushton paddles, and diameter of propeller blade is 127 millimeters, is 67 millimeters from end height, and gas distributor is 33 millimeters from end height; Accompanying drawing 2 devices adopt improved-blade type disc turbine of the present invention, 6 rectangle blades, and diameter of propeller blade is all 127 millimeters, is 67 millimeters from end height, and gas distributor is 33 millimeters from end height.
At solid concentration is 36.45g/L, Ventilation Rate 2.9m
3During/h, adopt in accompanying drawing 1 device of traditional Rushton paddle,, accumulate in that 90% above particle of oar below is still very difficult to suspend the end of from even speed of agitator reaches 800rpm, seldom have particle can flow on the wall, it is very difficult that traditional Rushton paddle will reach critical floating condition; Review the new equipment (accompanying drawing 2) that has adopted improved-blade type disc turbine, about rotating speed 760rpm, promptly reached critical suspension stirring condition, do not have particle deposition to produce at bottom land, and can observe solids and move to groove top wall, obviously produced axial flow with the flow field; Further improve rotating speed, can find, just can thoroughly eliminate the dead angle at baffle plate place about 850rpm, reach complete floating condition.As can be seen, the effect that solid suspends in gas-liquid-solid three-phase of the improved-blade type disc turbine among the present invention will be significantly better than traditional standard Rushton paddle.
Embodiment 2:
At the liquid-solid two-phase system, in the tank diameter with embodiment 1, solid phase and liquid phase are removed ventilation for the influence that solid suspends with embodiment 1, investigate the critical speed of agitator of solids in two kinds of devices more respectively in structure and size.Experimental result is found: for the Rushton paddle of tradition 6 blades that accompanying drawing 1 is installed (diameter of propeller blade be 127 millimeters, be 67 millimeter from end height), critical speed of agitator is 685rpm, and adopted the improved-blade type disc turbine stirring device (diameter of propeller blade be all 127 millimeters, be 67 millimeter from end height) of accompanying drawing 2, rotating speed reaches 575rpm and has promptly satisfied the critical condition that particle suspended the end of from, rotating speed is just can eliminate the baffle plate dead angle about 675rpm, and effect is better than the device of accompanying drawing 1.
Embodiment 3:
In structure and size in the tank diameter with embodiment 1, liquid phase is with embodiment 1, adopt acid-base indicator variable color method to measure incorporation time, with phenolphthalein is indicator, under stirring, at first add 0.3% phenolphthalein indicator of preparation in advance and the NaOH solution of 1mol/L, because phenolphthalein shows red at pH value alkali condition, so solution reddens in the whole groove, the HCl solution that adds 3mol/L then at liquid level rapidly near wall, and pick up counting, observe tank diameter solution decolourization situation, treat that whole cell body redness takes off and stop timing to the greatest extent, read incorporation time.
When rotating speed was 200rpm, having adopted the incorporation time of standard 6 blade Rushton paddle devices (accompanying drawing 1) was 12.86s, was 8.85s and adopt the incorporation time of the novel agitating device (accompanying drawing 2) of improved-blade type disc turbine, had shortened 31.2%.
Embodiment 4:
In the tank diameter with embodiment 1, liquid level is high 380 millimeters in the groove, 80 millimeters away from end be of gas distributors, 127 millimeters away from end be of paddles in structure and size.Liquid and gas are with embodiment 1.
For the gas-liquid two-phase system, because the limited mixing ability of radial flow impeller, gas-liquid mixed is relatively poor in the tank diameter, especially at bottom land, add the buoyancy of gas itself, the zone that can exist a gas phase to arrive, under certain gas speed, increase rotating speed this zone is disappeared.For the device (accompanying drawing 1, size is with embodiment 1) that adopts traditional 6 blade Rushton paddles, when gas speed is respectively 3.5m
3/ h and 4.0m
3During/h, critical speed of agitator is 580rpm and 650rpm; And for the agitating device (accompanying drawing 2, size is with embodiment 1) that adopts improved-blade type disc turbine, under identical gas speed, critical speed is respectively 560rpm and 600rpm, has reduced by 3.45% and 7.69% respectively.
Claims (5)
1. improved-blade type disc turbine stirring device, comprise: tank diameter, be positioned at the shaft of tank diameter, the improved-blade type disc turbine oar is installed on shaft, 4-12 sheet rectangle blade is installed on the disk, and cell wall is circumferentially evenly installed 4-12 upright baffle.
2. modified form disc turbine stirring device according to claim 1 is characterized in that: disc turbine oar oar footpath with the ratio calculation of groove footpath D: D/4-D/2.
3. modified form disc turbine stirring device according to claim 1 is characterized in that: the tank diameter cell wall is circumferentially evenly installed 4-12 upright baffle, barrier width D/12-D/10.
4. modified form disc turbine stirring device according to claim 1 is characterized in that: 4-12 sheet rectangle blade is installed, the staggered disk upper and lower that vertically is uniformly distributed on the disk.
5. modified form disc turbine stirring device according to claim 1 is characterized in that: disc turbine oar paddle size: high D/15-D/10, wide D/8-D/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101032625A CN101549261A (en) | 2008-04-02 | 2008-04-02 | Improved-blade type disc turbine stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101032625A CN101549261A (en) | 2008-04-02 | 2008-04-02 | Improved-blade type disc turbine stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101549261A true CN101549261A (en) | 2009-10-07 |
Family
ID=41153890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101032625A Pending CN101549261A (en) | 2008-04-02 | 2008-04-02 | Improved-blade type disc turbine stirring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101549261A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120155A (en) * | 2011-01-28 | 2011-07-13 | 无锡中晶材料科技有限公司 | Aluminum oxide micro-powder sorting and stirring device |
| CN102350250A (en) * | 2011-07-05 | 2012-02-15 | 中国科学院过程工程研究所 | Double-layer stirring paddle combination device |
| CN102513006A (en) * | 2012-01-09 | 2012-06-27 | 重庆大学 | Stirring device for leaching of manganese ore |
| CN102989349A (en) * | 2011-09-14 | 2013-03-27 | 中国科学院过程工程研究所 | Multifunctional improved disc-turbine stirring device |
| CN106215835A (en) * | 2016-08-30 | 2016-12-14 | 无锡上工搪化工设备有限公司 | A kind of detachable agitator |
-
2008
- 2008-04-02 CN CNA2008101032625A patent/CN101549261A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120155A (en) * | 2011-01-28 | 2011-07-13 | 无锡中晶材料科技有限公司 | Aluminum oxide micro-powder sorting and stirring device |
| CN102350250A (en) * | 2011-07-05 | 2012-02-15 | 中国科学院过程工程研究所 | Double-layer stirring paddle combination device |
| CN102989349A (en) * | 2011-09-14 | 2013-03-27 | 中国科学院过程工程研究所 | Multifunctional improved disc-turbine stirring device |
| CN102513006A (en) * | 2012-01-09 | 2012-06-27 | 重庆大学 | Stirring device for leaching of manganese ore |
| CN102513006B (en) * | 2012-01-09 | 2014-06-11 | 重庆大学 | Stirring device for leaching of manganese ore |
| CN106215835A (en) * | 2016-08-30 | 2016-12-14 | 无锡上工搪化工设备有限公司 | A kind of detachable agitator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102068955A (en) | Flocculation reactor with special-shaped spoiler | |
| CN101549261A (en) | Improved-blade type disc turbine stirring device | |
| CN118416813B (en) | Active microreactor and method for high-efficiency dispersion and mass transfer of large phase ratio gas/liquid or liquid/liquid | |
| CN106693745A (en) | Multiblade combined impeller | |
| CN102989349A (en) | Multifunctional improved disc-turbine stirring device | |
| CN203494430U (en) | Dynamic mixer of plant oil and liquid auxiliary materials | |
| CN204816310U (en) | Stirring tank | |
| CN201120262Y (en) | Combined impact agitating apparatus | |
| CN102350250A (en) | Double-layer stirring paddle combination device | |
| CN204147861U (en) | A kind of hydriding reactor self-absorbing type stirrer | |
| CN109589852A (en) | A kind of gas-solid-liquid mixed stirring device | |
| CN102049208B (en) | Stirring paddle device generating centripetal flow | |
| CN204159326U (en) | A kind of self-absorbing type stirrer of the application in hydriding reactor | |
| CN204816457U (en) | A reactor that is used for biomimetic catalysis cyclohexanone gas -liquid phase oxidation preparation epsilon - caprolactone | |
| CN207970760U (en) | A kind of combined agitator | |
| CN203196566U (en) | Circular disc turbine agitator | |
| CN2636982Y (en) | Synthesis reaction kettle | |
| CN210097480U (en) | Biax printing ink allotment cauldron | |
| CN203886532U (en) | Reaction kettle with good stirring effect | |
| CN202570004U (en) | Stirring system capable of multi-layer stirring | |
| CN202538686U (en) | High-speed lifting dispersion machine with stirring function | |
| CN207628319U (en) | A kind of efficient stainless steel agitating device | |
| JP6251547B2 (en) | Stirrer | |
| CN207822851U (en) | A kind of liquid scrubbing device | |
| CN201454528U (en) | Biochemical reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20091007 |