CN106693745A - Multiblade combined impeller - Google Patents
Multiblade combined impeller Download PDFInfo
- Publication number
- CN106693745A CN106693745A CN201710092458.8A CN201710092458A CN106693745A CN 106693745 A CN106693745 A CN 106693745A CN 201710092458 A CN201710092458 A CN 201710092458A CN 106693745 A CN106693745 A CN 106693745A
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- Prior art keywords
- blade
- wide
- blades
- linear leaf
- composite
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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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
Abstract
The invention discloses a multiblade combined impeller. The multiblade combined impeller is characterized in that the impeller comprises a fixed ring (1) and composite blades, wherein the composite blades are connected with the fixed ring (1), extend from the fixed ring (1) and comprise connecting blades (2), upper long blades (3), upper wide blades (4), lower long blades (5) and lower wide blades (6); the number of groups of the composite blades is n; in addition, the connecting blades (2) are perpendicular to the fixed ring (1); the upper long blades (3), the upper wide blades (4), the lower long blades (5) and the lower wide blades (6) are sequentially connected, and center lines of the upper long blades (3), the upper wide blades (4), the lower long blades (5) and the lower wide blades (6) are parallel to the axis of the fixed ring (1). The impeller device is simple in structure, is suitable for wide fluid viscosity range and can be used for a single-phase fluid mixing process, a liquid-liquid dispersion process, a gas-liquid dispersion process, a liquid-solid dispersion process or a gas-liquid-solid dispersion process in stirred tanks with different height-diameter ratios (H/T); according to the stirring device, fluid can generate uniform axial-radial composite flowing.
Description
Technical field
The present invention relates to a kind of agitating device, specifically, agitating device involved in the present invention can be applied to chemical industry, stone
Single-phase or heterogeneous fluid the stirring in the fields such as oiling work, biochemical pharmacy and metallurgy, mixed process, it is adaptable to larger viscosity model
Homogeneous system mixing and heterogeneous system in enclosing dispersion process (such as immiscible two-phase dispersion of liquid-liquid, gas-liquid dispersion, liquid-
Gu dispersion, or airwater mist cooling dispersion).Agitating device involved in the present invention, cannot be only used for conventional ratio of height to diameter example (H/
1 or so, a height of H of liquid level, groove internal diameter is T to T) stirred tank in mixed process, can be also used for ratio of height to diameter (H/T) larger
The mixed process of mixed process, such as ratio of height to diameter 1.5~3.
Background technology
With continuing to develop for industrial process, the industry such as oil, chemical industry, pharmacy be faced with simultaneously " high pollution, high energy consumption,
Accident is occurred frequently " serious challenge, therefore, develop new chemical industry equipment or device, improve production process efficiency, reduction and produced
Journey energy consumption etc. has great importance.Agitator is one of core component of tank reactor, and its Main Function is realized in kettle
It is dispersed between the uniform mixing of fluid or heterogeneous fluid, therefore be also the master for influenceing stirred tank reactor energy consumption height
Factor is wanted, so the exploitation to Novel mixer is always one of focus of Process Equipment research field, it is produced for improving
The aspects such as process efficiency, the saving production process energy, raising product yield, reduction accessory substance are respectively provided with highly important meaning.
According to the difference of fluid viscosity, the type selecting of agitator difference is such as directed to low viscosity fluid, frequently with push type
Propeller, six blade turbine agitating paddles etc.；For the fluid mixing process of medium-high viscosity, frequently with frame, anchor formula, helical-ribbon type etc.
Agitator；To meet the fluid mixing process in wide viscosity range, many designers have developed maximum blade formula, general energy formula
Etc. the agitating paddle of form.
Turbine type agitating paddle is the agitator for being industrially most commonly used for low viscosity fluid mixing, as the Gao Jing of stirred tank
Than it is larger when, by the way of generally being connected using multiple vane wheel oars, the tank diameter such as ratio of height to diameter in the range of 2~3, general edge
Axial arranged two to four vane wheel oars.Vane wheel oar belongs to typical radial-flow type agitating paddle, and axial backmixing effect is weaker, and multiple whirlpools
Wheel oar collective effect meeting generating region effect when vertical stirring tank, i.e., between the liquid circulation flow produced between adjacent agitating paddle
Relatively independent, fluid communication effect is weaker, while in the presence of bulk flow moment in flowing negative function, therefore groove, mixed effect is not
It is good, during the liquid-solid system particularly with the larger system of two-phase density difference to be mixed or containing suspended particulate, because it is deposited
Area effect so that material is extremely difficult to another region by a regional diffusion, it is impossible to reach expected mixed effect.
, in the stirring for middle and high viscous liquid and mixing, material is mainly with radial motion for the agitators such as frame, anchor formula
Based on, axial exchange interaction is poor, and in the case of not having baffle plate in container, center easily forms whirlpool.Due to whirlpool
In the presence of, it is difficult to alternate with each other inside and outside blade, it mixes, conducts heat, reach that effect is excessively poor, the tubulence energy and turbulence energy consumption of center
Dissipate minimum, and the problems such as material hot-spot, coking near kettle wall easily occur.Although helix(ribbon type) agitator is stirred
It is that but the exchange interaction of radial direction is poor based on the effect of axis material lifting in journey, especially when the material viscosity of stirring is higher,
The poor fluidity of material, overall flow field is uneven, have impact on heterogeneous mass transfer, heat transfer and crystallization etc..
There are Many researchers to improve frame, anchor formula, helix(ribbon type) agitator at present, to solve its flow direction list
One problem, such as U of patent CN 203591753 disclose a kind of band gate stirrer, and it is provided with helical-ribbon type on power transmission shaft and stirs
Oar and multilayer cross blade are mixed, described cross blade is provided with vertical blade.The agitator overall structure similar to frame and
The combination of helix(ribbon type) agitator, the axial direction flowing that the Radial Flow effect that gate stirrer is produced and helix(ribbon type) agitator are produced
Effect is combined, and flow field presents and axially and radially crosses one another, so that material fully can uniformly be mixed.But the agitator
Complex structure, non-easy processing, and horizontal multiple layers of vanes is provided with power transmission shaft, can be to the overall axial direction in tank diameter after its rotation
Flowing produces cutting action so that flow field is axially being divided into several regions, reduces the exchange interaction of axial material.
Mixed process is caused when overcoming above-mentioned single agitator exclusive use or various stirrer combinations to use
Adverse effect, exploitation with simple structure, can realize axially and radially flowing simultaneously, the material in kettle between whole region is exchanged
Act on the focus that obvious combined type agitator researches and develops field as mixing plant.As the A of patent CN 103768980 disclose one
Sweep short blade composite stirrer is planted, its structure is mainly made up of bottom short blade and top sweep.The agitator passes through two kinds
The interaction of radial-flow type oar, makes fluid in kettle while generating overall axle flowing, and axially flowing interacts with Radial Flow,
Solve general radial-flow type oar and flow to Single-issue, enhance mixed process.But the agitator is produced due to short blade to fluid
Be lifted up that effect is limited, when for ratio of height to diameter excessive material mixed process, mixed effect has declined, and in liquid level
Easily there is mixing dead band in place.
The content of the invention
Technical problem：It is an object of the invention to provide a kind of multiple-blade Combined mixing device, for chemical industry, oil
Single-phase or heterogeneous fluid the stirring in the fields such as work, biochemical pharmacy and metallurgy, mixed process.The stirring dress that the present invention is provided
Put, the dispersion process of the homogeneous system mixing and heterogeneous system that are applicable in the range of larger viscosity, specifically for stirring
During kettle, the mixing in the stirred tank of conventional ratio of height to diameter example (H/T 1 or so, a height of H of liquid level, groove internal diameter is T) is cannot be only used for
Journey, can be also used for the larger mixed process of ratio of height to diameter (H/T), such as mixed process of the ratio of height to diameter 1.5~3.
Technical scheme：In order to solve the above technical problems, the invention provides a kind of multiple-blade combined blender, the stirring
Device includes the composite blading that retainer ring and retainer ring connection and self-retaining ring extend, and composite blading includes connection blade, upper minister
Blade, top blade wide, bottom linear leaf, bottom blade wide, wherein, composite blading has n groups, and connection blade perpendicular to fixation
Ring, top linear leaf, top blade wide, bottom linear leaf, bottom blade wide are sequentially connected and its center line is parallel to retainer ring
Axis；
The top linear leaf hypomere and bottom linear leaf upper end are connected with the upper and lower end for being connected blade respectively
Connect, the top blade wide is connected to the upper end of top linear leaf, the bottom blade wide is connected to the hypomere of bottom linear leaf.
Preferably, quantity n >=2 of composite blading, or 2≤n≤8, or 4≤n≤6.
Preferably, the angle between described connection blade and axis is 0~70 degree, or 0~45 degree.
Preferably, top blade wide, bottom blade wide are shaped as flat board, oblique blade or flexure plane.
Preferably, one end of the top linear leaf is connected with the optional position of top blade horizontal edge wide.
Preferably, one end of the bottom linear leaf is connected with the optional position of bottom blade horizontal edge wide.
Beneficial effect：The multiple-blade combined blender that the present invention is provided greatly enhances larger vertical of ratio of height to diameter and stirs
The flowing of fluid in groove is mixed, as shown in figure 1, making kettle interior while producing relatively uniform axial direction flowing and Radial Flow, and axially
The fluid of flowing and the fluid interaction of Radial Flow, fluid communication is effectively carried out, solve many oar combined blenders and hold
The problems such as being also easy to produce area effect, tubulence energy and tubulence energy dissipation skewness, substantially increase mixing efficiency, reduce it is mixed
Conjunction time, the power consumption for reducing agitating paddle；While the simple structure of the agitator, it is easy to process, reduce manufacturing cost.
In general, it is of the invention compared to other technologies, with advantage following prominent：
(1) the radially draining function produced in whipping process by linear leaf, blade wide and connection blade are in stirring
During the local eddy currents that produce by axial elongation, and multiply vortex produces stronger interaction and to pool one larger
Vortex, this makes connection blade and interlobate area effect wide greatly weaken, even disappears completely.
(2) top and the bottom of the multiple-blade combined blender in vertical stirring tank generate the big whirlpool of horizontal symmetrical respectively
Stream, and line of symmetry is near connection blade, further controls to connect the discharge opeing side of blade by controlling the angle of connection blade
To it causes that the mutual exchanging action of the symmetrical vortices of tank diameter top and the bottom is strengthened, and so effectively enhances vertical stirring
Mix the overall axial backmixing effect of device.
(3) blade wide, connection blade are linked to be entirety by the multiple-blade combined blender by linear leaf, and it can regard nothing as
Several radial-flow type agitating paddles can make the tubulence energy and turbulence energy consumption in whole groove in axial combination in whipping process
Scattered distribution is homogeneous, reduces local tubulence energy and the too small region of tubulence energy dissipation.
Brief description of the drawings
Fig. 1 a are multiple-blade combined blenders of the present invention.
Fig. 1 b are that the fluid flow pattern contrast produced in the leaf disk vane wheel oar combined impeller tank diameter of standard six is shown
It is intended to.
Fig. 2 is the agitator configuration picture in embodiment 1.
Fig. 3 is the agitator configuration picture in embodiment 2.
Fig. 4 is the agitator configuration picture in embodiment 3.
Fig. 5 is the agitator configuration picture in embodiment 4.
Fig. 6 is the agitator configuration picture in embodiment 5.
Fig. 7 is the agitator configuration picture in embodiment 6.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
The multiple-blade combined blender that the present invention is provided is further illustrated below in conjunction with the accompanying drawings, but the present invention
It is not limited thereby.
A kind of multiple-blade combined blender, the agitator includes retainer ring 1 and retainer ring 1 is connected and self-retaining ring 1 prolongs
The composite blading stretched, composite blading includes that connection blade 2, top linear leaf 3, top blade 4 wide, bottom linear leaf 5, bottom are wide
Blade 6, wherein, composite blading has a n groups, and connection blade 2 is perpendicular to retainer ring 1, top linear leaf 3, top blade 4 wide, under
Minister's blade 5, bottom blade 6 wide be sequentially connected and its center line parallel to retainer ring 1 axis；
The hypomere of top linear leaf 3 and the upper end of bottom linear leaf 5 respectively with the upper and lower end phase for being connected blade 2
Connection, the top blade 4 wide is connected to the upper end of top linear leaf 3, and the bottom blade 6 wide is connected to bottom linear leaf 5
Hypomere.
Quantity n >=2 of composite blading, or 2≤n≤8, or 4≤n≤6.
Angle between described connection blade 2 and axis is 0~70 degree, or 0~45 degree.
The top blade 4, bottom wide blade 6 wide is shaped as flat board, oblique blade or flexure plane.
One end of the top linear leaf 3 is connected with the optional position of the top horizontal edge of blade 4 wide.
One end of the bottom linear leaf 5 is connected with the optional position of the bottom horizontal edge of blade 6 wide.
Embodiment 1：
Stirred tank interior diameter 1m, 2m high, wall is uniformly distributed four pieces wide 0.1m baffle plates, stirred volume about 1.2m3, liquid level is high
1.6m, multiple-blade combined blender is arranged on the axis of diameter 65mm by retainer ring.As shown in Fig. 2 the agitator is straight
Footpath 0.58m, totally 4 composite bladings, the connection blade 12cm high on bottom 0.2m, its composite blading, and 0 degree of axis angle,
Upper and lower short blade is width 12cm, and the prismatic blade of 12cm high, short blade center is connected with linear leaf center, linear leaf 4cm wide, high
42cm。
Embodiment 2：
Stirred tank interior diameter 0.6m, 1.5m high, wall is uniformly distributed four pieces wide 0.06m baffle plates, stirred volume about 0.34m3,
Liquid level 1.2m high, multiple-blade combined blender is arranged on the axis of diameter 40mm by retainer ring.As shown in figure 3, this is stirred
Mix device totally 5 composite bladings, diameter 0.3m, away from bottom 0.15m, the connection blade 9cm high of its composite blading, with axis angle 0
Degree, upper and lower short blade is width 9cm, and the prismatic blade of 9cm high, short blade outer is connected with linear leaf, linear leaf 3cm wide, high
31.5cm。
Embodiment 3：
Stirred tank interior diameter 1m, 2m high, wall is uniformly distributed four pieces wide 0.1m baffle plates, stirred volume about 1.35m3, liquid level
1.8m high, multiple-blade combined blender is arranged on the axis of diameter 65mm by retainer ring.As shown in figure 4, the agitator
Totally 6 composite bladings, diameter 0.7m, away from bottom 0.25m, the connection blade 15cm high of its composite blading, and 0 degree of axis angle,
Upper and lower short blade is width 15cm, and high 12.5 prismatic blade, the interior edge of short blade is connected with linear leaf, linear leaf 5cm wide, 45cm high.
Embodiment 4：
Stirred tank interior diameter 1.2m, 3m high, wall is uniformly distributed four pieces wide 0.12m baffle plates, stirred volume about 2.8m3, liquid
Position 2.6m high, multiple-blade combined blender is arranged on the axis of 70mm by retainer ring.As shown in figure 5, the agitator is straight
Footpath totally 4 composite bladings, diameter 0.6cm, away from bottom 40cm, the connection blade 18cm high of its composite blading, with axis angle 45
Degree, upper and lower short blade is 16cm high, and the prismatic blade of 18cm wide, short blade outer is connected with linear leaf, linear leaf 6cm wide, high
63cm。
Embodiment 5：
Stirred tank interior diameter 0.6m, 1.8m high, wall is uniformly distributed four pieces wide 0.06m baffle plates, stirred volume about 0.44m3,
Liquid level 1.6m high, multiple-blade combined blender is arranged on the axis of diameter 45mm by retainer ring.As shown in fig. 6, this is stirred
Mix device totally 4 composite bladings, diameter 0.3m, away from bottom 0.2m, the connection blade 9cm high of its composite blading, with axis angle 0
Degree, upper and lower short blade is width 9cm, and 9cm high, the bent blades of camber line diameter 9cm, short blade outer is connected with linear leaf, linear leaf
3cm wide, 46cm high.
Embodiment 6：
Stirred tank interior diameter 1.6m, 3m high, wall is uniformly distributed four pieces of 0.16m baffle plates, stirred volume about 4.8m3, liquid level
2.4m high, multiple-blade combined blender is arranged on the axis of diameter 105mm by retainer ring.As shown in fig. 7, the agitator
Totally 4 composite bladings, diameter 0.8m, apart from bottom 0.26m, the connection blade 20cm high of its composite blading, with axis angle 45
Degree, upper and lower short blade is width 24cm, 20cm high, and with 45 degree of oblique blade of axis angle, short blade outer is connected with linear leaf, long
Blade 8cn wide, 64cm high.
Better embodiment of the invention is the foregoing is only, protection scope of the present invention is not with above-mentioned implementation method
Limit, as long as the equivalent modification made according to disclosed content of those of ordinary skill in the art or change, should all include power
In protection domain described in sharp claim.
Claims (6)
1. a kind of multiple-blade combined blender, it is characterised in that the agitator includes that retainer ring (1) and retainer ring (1) are connected
And the composite blading that self-retaining ring (1) extends, composite blading is including connecting blade (2), top linear leaf (3), top blade wide
(4), bottom linear leaf (5), bottom blade wide (6), wherein, composite blading has n groups, and connection blade (2) perpendicular to retainer ring
(1), top linear leaf (3), top blade wide (4), bottom linear leaf (5), bottom blade wide (6) are sequentially connected and its center line
Parallel to the axis of retainer ring (1)；
Top linear leaf (3) hypomere and bottom linear leaf (5) upper end respectively with the upper and lower end for being connected blade (2)
It is connected, the top blade wide (4) is connected to the upper end of top linear leaf (3), the bottom blade wide (6) is connected to bottom
The hypomere of linear leaf (5).
2. multiple-blade combined blender according to claim 1, it is characterised in that：Quantity n >=2 of composite blading, or 2
≤ n≤8, or 4≤n≤6.
3. multiple-blade combined blender according to claim 1, it is characterised in that：Described connection blade (2) and axle
Angle between line is 0~70 degree, or 0~45 degree.
4. multiple-blade combined blender according to claim 1, it is characterised in that：The top blade wide (4), bottom
Blade (6) wide is shaped as flat board, oblique blade or flexure plane.
5. multiple-blade combined blender according to claim 1, it is characterised in that：The one of the top linear leaf (3)
End is connected with the optional position of the top blade wide (4) horizontal edge.
6. multiple-blade combined blender according to claim 1, it is characterised in that：The one of the bottom linear leaf (5)
End is connected with the optional position of the bottom blade wide (6) horizontal edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092458.8A CN106693745B (en) | 2017-02-21 | 2017-02-21 | A kind of multiple-blade combined blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092458.8A CN106693745B (en) | 2017-02-21 | 2017-02-21 | A kind of multiple-blade combined blender |
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| Publication Number | Publication Date |
|---|---|
| CN106693745A true CN106693745A (en) | 2017-05-24 |
| CN106693745B CN106693745B (en) | 2019-08-20 |
Family
ID=58917038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092458.8A Active CN106693745B (en) | 2017-02-21 | 2017-02-21 | A kind of multiple-blade combined blender |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332937A (en) * | 2021-05-24 | 2021-09-03 | 东南大学 | Fractal blade stirrer |
| CN113952913A (en) * | 2021-11-24 | 2022-01-21 | 重庆工商大学 | Z-shaped overlapped stirring paddle for enhancing fluid mixing |
| CN114534542A (en) * | 2022-02-28 | 2022-05-27 | 华东理工大学 | Stirring paddle, stirring system, anode material, precursor of anode material and preparation method |
| CN114887511A (en) * | 2022-05-25 | 2022-08-12 | 东南大学 | Fish tail bionic stirring paddle |
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| CN204170680U (en) * | 2014-09-18 | 2015-02-25 | 天津市振东涂料有限公司 | Slurry dispersion mixing device |
| CN105344306A (en) * | 2015-12-03 | 2016-02-24 | 重庆太岳科技有限公司 | Multi-blade stirring-type dust collecting reaction system |
| CN105854774A (en) * | 2016-06-02 | 2016-08-17 | 范素琴 | Novel pharmaceutical reaction kettle stirrer |
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| US20130208560A1 (en) * | 2012-02-13 | 2013-08-15 | Council Of Scientific & Industrial Research | Fractal impeller for stirring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332937A (en) * | 2021-05-24 | 2021-09-03 | 东南大学 | Fractal blade stirrer |
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| CN113952913A (en) * | 2021-11-24 | 2022-01-21 | 重庆工商大学 | Z-shaped overlapped stirring paddle for enhancing fluid mixing |
| CN113952913B (en) * | 2021-11-24 | 2023-01-24 | 重庆工商大学 | Z-shaped overlapped stirring paddle for enhancing fluid mixing |
| CN114534542A (en) * | 2022-02-28 | 2022-05-27 | 华东理工大学 | Stirring paddle, stirring system, anode material, precursor of anode material and preparation method |
| CN114534542B (en) * | 2022-02-28 | 2024-01-26 | 华东理工大学 | Stirring paddle, stirring system, positive electrode material, precursor of positive electrode material and preparation method of precursor |
| CN114887511A (en) * | 2022-05-25 | 2022-08-12 | 东南大学 | Fish tail bionic stirring paddle |
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