CN109310961A - Stirring blade and agitating device - Google Patents
Stirring blade and agitating device Download PDFInfo
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- CN109310961A CN109310961A CN201780035206.XA CN201780035206A CN109310961A CN 109310961 A CN109310961 A CN 109310961A CN 201780035206 A CN201780035206 A CN 201780035206A CN 109310961 A CN109310961 A CN 109310961A
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- Prior art keywords
- stirring blade
- blade
- stirring
- rotation
- base portion
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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
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
-
- 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
- B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
-
- 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
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/50—Mixing receptacles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention is provided used in a kind of agitating device around the stirring blade of regulation axle center rotation.Above-mentioned stirring blade includes base portion and multiple blade parts.Above-mentioned multiple blade parts are set to the same side of above-mentioned base portion, and arrange around above-mentioned axle center.Above-mentioned multiple blade parts include the inner end radially with above-mentioned axis perpendicular respectively；The front curve for being connected with the inner end and being protruded to the front of direction of rotation.Stirring blade with this spline structure can suitably be stirred stirring subject material, be conducive to the dispersion degree and degree of mixing that improve above-mentioned subject material.
Description
Technical field
The present invention relates to stirring blades and agitating device.
Background technique
At present it is known that there is the agitating device for many kinds of substance to be mutually mixed.Such as following patent documents 1 disclose and make
With an example of the agitating device of stirring blade.The existing stirring blade is installed on the front end for the axis being driven in rotation, as stirring
The mixture (" subject material ") of object is accommodated in regulation container.By rotating stirring blade in the container, stirring pair
As material.
In general, in existing agitating device, near agitating unit (above-mentioned paddle etc.), subject material is obtained
It is sufficiently stirred, different material mixes (dispersion degree is high) well each other.On the other hand, in the position far from agitating unit, object
The stirring of material is insufficient, and dispersion degree is low.So, dispersion degree is different because of position in existing agitating device, leads to object material
Expect that total quality is uneven (i.e. degree of mixing is low).
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 10-180073 bulletin
Summary of the invention
Technical problems to be solved by the inivention
The present invention is to complete based on the above issues.Therefore, one of technical problem of the invention is, provide it is a kind of with
The prior art is compared can improve the dispersion degree of subject material and the stirring blade of degree of mixing and agitating device simultaneously.
Technical teaching for solving the problem was
According to the first aspect of the invention, a kind of stirring blade rotated around axle center is provided.The stirring blade has: base
Portion；With the first side that above-mentioned base portion is set, and around above-mentioned axle center arrangement multiple first blade parts.Above-mentioned multiple first blades
Portion includes the inner end radially with above-mentioned axis perpendicular respectively；It is connected with the inner end and to the front of direction of rotation
The front curve of protrusion.
Preferably, each above-mentioned first blade part has rear bending section, and above-mentioned rear bending section is with above-mentioned front curve above-mentioned
Radial outside is connected, and protrudes to the rear of above-mentioned direction of rotation.
Preferably, each above-mentioned first blade part with on the direction of above-mentioned axis parallel further away from above-mentioned base portion, it is offside
Mode in the front of above-mentioned direction of rotation tilts.
Preferably, each above-mentioned first blade part more leans on above-mentioned diameter relative to the tilt angle in the direction with above-mentioned axis parallel
To inside it is bigger.
Preferably, above-mentioned stirring blade further includes multiple second blade parts, and above-mentioned base portion has opposite with above-mentioned first side
Second side.Above-mentioned multiple second blade parts are set to above-mentioned second side and arrange around above-mentioned axle center.
Preferably, position of above-mentioned multiple first blade parts on above-mentioned direction of rotation and above-mentioned multiple second blade parts are not
Together.
Preferably, the first inclined surface and the second inclined surface that above-mentioned base portion has direction opposite toward each other tapered.
Above-mentioned multiple first blade parts are set to above-mentioned first inclined surface, and above-mentioned multiple second blade parts are set to above-mentioned second inclination
Face.
The agitating device that the second aspect of the present invention provides includes: the stirring blade of above-mentioned first aspect；It is stirred for storing
Mix the container of object；With the rotary shaft being inserted into said vesse, above-mentioned stirring blade is installed on above-mentioned rotary shaft.
By reference to the following detailed description that attached drawing carries out, other feature and advantage of the invention can be further appreciated that.
Detailed description of the invention
Fig. 1 is the perspective view for indicating the stirring blade of first embodiment of the invention.
Fig. 2 is the main view for indicating the stirring blade of first embodiment of the invention.
Fig. 3 is the top view for indicating the stirring blade of first embodiment of the invention.
Fig. 4 is the cross-sectional view for indicating the agitating device of the stirring blade using first embodiment of the invention.
Fig. 5 is the stirring blade perspective view for indicating second embodiment of the present invention.
Fig. 6 is the stirring blade top view for indicating second embodiment of the present invention.
Fig. 7 is the figure for indicating the stirring of stirring blade of first embodiment.
Fig. 8 is the figure for indicating the stirring of stirring blade of second embodiment.
Fig. 9 is the perspective view for indicating the stirring blade of comparative example.
Figure 10 is the figure for indicating the stirring of stirring blade of comparative example.
Figure 11 is the perspective view for indicating the stirring blade of third embodiment of the present invention.
Figure 12 is the main view for indicating the stirring blade of third embodiment of the present invention.
Figure 13 is the section view for indicating to have used an example of the agitating device of stirring blade of third embodiment of the present invention
Figure.
Figure 14 is the perspective view for indicating the stirring blade of the 4th embodiment of the invention.
Figure 15 is the perspective view for indicating the stirring blade of the 5th embodiment of the invention.
Figure 16 is the figure for indicating the stirring of stirring blade of third embodiment.
Figure 17 is the figure for indicating the stirring of stirring blade of the 4th embodiment.
Figure 18 is the figure for indicating the stirring of stirring blade of the 5th embodiment.
Figure 19 is the figure for indicating the stirring of stirring blade of comparative example.
Figure 20 is the figure for indicating the flowing trace analysis result of the marker stirred by the stirring blade of third embodiment.
Figure 21 is the figure for indicating the flowing trace analysis result of the marker stirred by the stirring blade of the 4th embodiment.
Figure 22 is the figure for indicating the flowing trace analysis result of the marker stirred by the stirring blade of the 5th embodiment.
Figure 23 is the figure for indicating the flowing trace analysis result of the marker stirred by the stirring blade of comparative example.
Figure 24 is another cross-sectional view for indicating to have used the agitating device of the stirring blade of third embodiment.
Specific embodiment
In the following, illustrating the preferred embodiment of the present invention with reference to attached drawing.
In the present invention, it about " stirring ", is not particularly limited, may include " dispersion " and " mixing ".Disperse referring to
It is that micro Distribution has other materials (such as powder or other liquid) in single-phase substance (such as liquid) on.In addition, mixed
Conjunction is to instigate the whole dispersion degree of subject material uniform.For example, it is assumed that subject material is made of liquid A and powder B.Such case
Under, " stirring " of subject material is to instigate powder B (at least part) to be distributed in liquid A (at least part) (" to divide
Dissipate "), and regulation mobility is generated in subject material, so that the distribution of powder B is homogeneous in any place of subject material
With (or substantially identical) (" mixing ").
FIG. 1 to FIG. 3 indicates the stirring blade of first embodiment of the invention.The stirring blade A1 of diagram includes base portion 1
With blade group 2.
Fig. 1 is the perspective view for indicating stirring blade A1.Fig. 2 is the main view for indicating stirring blade A1.Fig. 3 is to indicate to stir
The top view of blade A1.In Fig. 1 and Fig. 3, the direction (circumferential direction) of stirring blade A1 rotation is indicated with θ.In Fig. 2, stirring blade A1
The direction of rotation is indicated with arrow of the label at stirring blade A1.In addition, in these figures, it is flat with the rotary shaft of stirring blade A1
Capable direction (axial direction) indicates that the direction vertical with axial z (radial direction) is indicated with r with z.
Stirring blade A1 is for example installed in agitating device B1 shown in Fig. 4.Agitating device B1 includes container 81, rotary shaft
82, driving portion 83 and axle envelope 85.Container 81 stores the subject material T being stirred.Rotary shaft 82 is hung down through the bottomland of container 81
Straight to extend, the upper end is equipped with stirring blade A1.Axle envelope 85 is set between the bottom of container 81 and rotary shaft 82, allows to rotate
Axis 82 rotates, but prevents subject material T from leaking into outside from container 81.Driving portion 83 in order to make rotary shaft 82 around with axial z
Parallel defined axle center rotation, and there is such as motor.About other components of agitating device B1, it is not particularly limited,
The shell of supporting container 81 and driving portion 83 can be appropriately arranged with and control the control unit etc. of the driving of driving portion 83.
It about stirring blade A1, is not particularly limited, by the material shape of the suitable stirring subject material T such as metal or resin
At.As the metal for forming stirring blade A1, for example, stainless steel.Stirring blade A1 can be by base portion 1 and blade group 2
It is integrally formed, it can also be composed of separately formed multiple components.Rotary shaft 82 is installed on as by stirring blade A1
Unit, can be using well-known clamping mechanism or link mechanism etc..Furthermore it is possible in advance by a part of stirring blade A1
Another part of stirring blade A1 is removably installed on the part by fixed (such as bonding) in rotary shaft 82.About stirring
The size for mixing blade A1, is not particularly limited, and can suitably be selected according to the size of container 81 or viscosity of subject material T etc..
As an example, the diameter of stirring blade A1 is about 40mm.
1 supporting blade group 2 of base portion, is fixed on rotary shaft 82.The shapes and sizes of base portion 1 are not particularly limited.Diagram
Base portion 1 is rounded at vertical view (observing along axial z).Base portion 1 has outer circumference end 10 and inclined surface 11.In the present embodiment,
Outer circumference end 10 is located at the lower end of base portion 1, and when vertical view is rounded.Inclined surface 11 is set to 10 top of outer circumference end.Inclined surface 11 is in axis
More up on z, radial r size is smaller.In other words, inclined surface 11 is in taper upward.In the example shown in the series of figures, base portion 1 is whole
Body is in truncated cone (truncated cones) shape, and inclined surface 11 is made of the side of the truncated cone.
Blade group 2 is made of multiple blade parts 20.These blade parts 20 are set to the same surface side of base portion 1, and are rotating
Arrangement is spaced apart from each other on the θ of direction.In the present embodiment, multiple blade parts 20 are set to inclined surface 11.As shown in Fig. 2, multiple
Blade part 20 is configured in the prescribed limit of axial z.
The number for constituting the blade part of blade group 2 is not particularly limited.In the present embodiment, blade group 2 is by 4 blades
Portion 40 forms.The equidistant arrangement when looking down of this 4 blade parts 20, is separated from each other 90 degree on the θ of direction of rotation.
Each blade part 20 has inner end 21, outboard end 22, cardinal extremity 23, top 24, leading flank 25, trailing flank 26, antecurvature
Pars convoluta 27 and rear bending section 28.Inner end 21 is located at the radial r most inner side of blade part 20, for linear with specific length or
Forniciform edge.In the present embodiment, between being spaced from each other on the θ of direction of rotation between the inner end 21 of multiple blade parts 20
Every.Outboard end 22 is located at the radial r outermost of blade part 20, for the linear or forniciform edge with specific length.Such as
Shown in Fig. 3, outboard end 22 is consistent with the outer circumference end 10 of base portion 1 when looking down.I.e. any of base portion 1 and blade part 20 do not have
Than another more to prominent on the outside of radial r.In another example, at least one blade part 20 can be than base portion 1 more to the radial outside r
It is prominent, it can also be than base portion 1 more to retraction on the inside of radial r.
Cardinal extremity 23 is the position that blade part 20 is connected with base portion 1.Top 24 on axial z far from cardinal extremity 23, for
The linear or forniciform edge of specific length.
The leading flank 25 of each blade part 20 is the face of the front side positioned at direction of rotation θ, and trailing flank 26 is to be located behind side
Face.
Front curve 27 is the position for being connected with inner end 21, and protruding when looking down to the front direction of rotation θ.More specifically
For, front curve 27 has compared with the virtual line at the radial both ends r of connection front curve 27 more to the front direction of rotation θ
The shape of protrusion.Bending section 28 is to be connected on the outside of radial r with front curve 27 afterwards, and when looking down to the direction of rotation rear θ
The position of protrusion.More specifically, rear bending section 28 has compared with the virtual line at the radial both ends r of bending section 28 after connection
The shape more protruded to the direction of rotation rear θ.In Fig. 1 and Fig. 3,27 He of front curve is respectively indicated with chain-dotted line with the arrow
The range of bending section 28 afterwards.In the example shown in the series of figures, top 24 is set to the portion that front curve 27 is generally comprised in blade part 20
Point, as shown in figure 3, having when looking down to the shape of protrusion in front of the θ of direction of rotation.In addition, cardinal extremity 23 is respectively arranged at composition
The part of front curve 27 and rear bending section 28, as shown in figure 3, S-type shape when looking down.In addition, front curve 27 is with after
The setting range of bending section 28 and respective bending degree etc. are not particularly limited.
In addition, in the present embodiment, each blade part 20 is, far from base portion 1, to be located at rotation side on axial z
It is obliquely installed to the mode in front of θ.Moreover, in the present embodiment, blade part 20 is got over relative to the tilt angle of axial z to diameter
It is gone on the inside of to r bigger.More specifically, as shown in Fig. 2, the inner end 21 of blade part 20 is greater than with axial direction z angulation α 1
The outboard end 22 and axial direction z angulation α 2 of blade part 20.Therefore, after front curve 27 and axial direction z angulation are greater than
Bending section 28 and axial direction z angulation.
Fig. 5 and Fig. 6 indicates the stirring blade of second embodiment of the present invention.In the stirring blade A2 of diagram, blade part
20 structure is different from above-mentioned stirring blade A1.Fig. 5 is the perspective view for indicating stirring blade A2.Fig. 6 is bowing for stirring blade A2
View.
In the present embodiment, each blade part 20 only has 1 bending section, that is, front curve 27, without rear bending section 28.Such as
Shown in Fig. 6, in vertical view, the entirety of blade part 20 is made of front curve 27.The phase of multiple blade parts 20 in stirring blade A2
It is substantially identical as stirring blade A1 to the structure of relationship and base portion 1.Stirring blade A2 is identical as stirring blade A1, and installation is used in combination
In agitating device B1 (Fig. 4).
Then, illustrate the effect of stirring blade A1, A2 and agitating device B1.
Fig. 7 and Fig. 8 shows the analysis examples for the stirring that stirring blade A1, A2 are analyzed using fluid dynamic numerical simulation.
It is corresponding with multiple points in these figures, it is labeled with multiple arrows respectively.Each arrow indicates the flowing side of the subject material at the point
To (wherein, θ component in direction of rotation is not in limit of consideration).In addition, the flow velocity of the grayscale corresponding objects material in figure, expression pair
As the velocity flow profile of material (wherein, θ component in direction of rotation is not in limit of consideration).The more shallow region of color, relative velocity are got over
(white area flow velocity is maximum) greatly, the deeper region of color, relative velocity are smaller (black region flow velocity is minimum).Between adjacent area
Velocity ratio be 2.15.Each condition of this analysis is as follows.The internal diameter of container 81 is 126mm.Subject material T is high viscosity non newtonian
Fluid (sodium carboxymethylcellulose 1.7wt%), liquid depth 89.8mm.The bottom center of container 81 is configured with stirring blade A1
(Fig. 7) or A2 (Fig. 8).The rotation speed (peripheral speed) of stirring blade A1, A2 are 10m/s.
When stirring blade A1, A2 rotation, subject material T will be along direction of rotation θ rotational flow.In addition, from Fig. 7 and figure
8 arrow it is understood that subject material T axially z from the top (and close to liquid level) of stirring blade A1, A2 towards stirring blade
After A1, A2 flow downwards, from the lower end (near outer circumference end 10) of stirring blade A1, A2 along the bottom of container 81 to radial r
Outside flowing.Subject material T is the flowing of liquid level direction also along the side wall of container 81 upward.It flows in this way, container 81
Interior formation Maelstrom.In Fig. 7 and Fig. 8, there is symmetrical 2 whirlpools of axis of rotation relative to stirring blade A1, A2.With this
The mixing for the flowing mainly useful for subject material T that the whirlpool of sample generates.In addition, especially existing near stirring blade A1, A2
Near outer circumference end 10, flow velocity maximum (referring to white area).In this way, flow velocity locally significantly increases mainly useful for subject material T
Dispersion.In this way, dispersing a part of subject material T effectively near stirring blade A1, A2 by stirring blade A1, A2
Afterwards, the part after the completion of dispersion is moved to other positions by above-mentioned vortex, so that realizing keeps subject material T whole appropriate mixed
The effect of conjunction.
Fig. 9 indicates the stirring blade X for making comparisons with stirring blade A1, A2.Stirring blade X has base portion 91, first
Blade group 92a and the second blade group 92b.Base portion 91 is flat disc.Blade group 92a and 92b along base portion 91 periphery
Configuration.First blade group 92a is made of the multiple blade parts 920 being folded upward at relative to base portion 91.Second blade group 92b is by phase
Multiple blade parts 920 that base portion 91 is bent downward are constituted.Each blade part 920 is generally trapezoidal plate, is had along rotation
Turn inner face and the outside of direction θ.Such stirring blade X is obtained and carrying out cutting and bending process to such as metal plate.
Figure 10 indicates under the same conditions, utilizing fluid dynamics Numerical-Mode with Fig. 7 and fluid analysis example shown in Fig. 8
Intend to analyze the analysis example of stirring blade X (outer diameter is identical as stirring blade A1, A2).As shown in Figure 10, in the outer of stirring blade X
Near Zhou Duan, flow velocity is maximum.In addition, generating vortex in the left and right of the axis of rotation of stirring blade X.But close to container 81
Side wall and subject material T liquid level region, flow velocity is substantially reduced.It is including mainly paddle when using stirring blade X
Mushroom-shaped region including piece X is stirred, and does not carry out substantial stirring in other regions.It follows that being stirred with using
The case where mixing blade X is compared, can be in the big flow velocity of realization in larger scope of container 81 using stirring blade A1, A2.Therefore, lead to
Stirring blade A1, A2 are crossed, more suitably can integrally be mixed subject material T than stirring blade X.
The main reason for as being appropriately mixed by stirring blade A1, A2, first consists in the front curve of blade part 20
The contribution in portion 27.As shown in Figure 3 and Figure 6, front curve 27 is protruded to the front direction of rotation θ.It can according to the research of inventor etc.
Know, by this structure, can strongly attract subject material T in inner end 21, at the same by the subject material T of attraction smoothly to
It is mobile on the outside of radial r.Especially in the example shown in the series of figures, although angle formed by the blade part 20 of inner end 21 and direction of rotation θ
It spends relatively small (α 1 in Fig. 2 is relatively large), but thus, it is possible to more strongly attract subject material T.In addition, illustrating
Front curve 27 in, more to going on the outside of r, blade part 20 is more gradually increased with direction of rotation θ angulation.It was found that the structure
Be conducive to mobile on the outside of the more smooth geocentric vertical r of the subject material T for making to have attracted.The strength attracts and smooth movement is considered as
It is capable of a reason of more suitably blending objects material T.
In addition, the analysis example of the stirring blade A1 of Fig. 7 is compared with the analysis example of the stirring blade A2 of Fig. 8, in Fig. 7
Thin shade region (the fast region of flow velocity) it is wider than the thin shade region in Fig. 8.It is different from stirring blade A2, stirring blade A1
Equipped with to the direction of rotation rear θ it is outstanding after bending section 28.In other words, it in rear bending section 28, is gone on the outside of more radial r, blade
Portion 20 is formed by angle with direction of rotation θ and is more gradually increased.According to the research of inventor etc. it is found that by with this structure
Rear bending section 28, can by the subject material T of attraction from stirring blade A1 to radial r on the outside of more effectively be discharged.Moreover,
Strengthened by front curve 27 and attracted, strengthened by rear bending section 28 and be discharged, the two complements each other, and promotes subject material T whole
Mixing.
In addition, as described above, each blade part 20 is tilted to the front direction of rotation θ.Thereby, it is possible to avoid being mixed into subject material
The boundary part (corner) of bubble residence in T in trailing flank 26 and inclined surface 11.Bubble residence can hinder to stir in the corner
The mixing for the subject material T that blade A1, A2 are carried out.By stirring blade A1, A2, the corner residual bubble is avoided, therefore is had
Conducive to the degree of mixing for improving subject material T.
Figure 11 and 12 indicates the stirring blade A3 of third embodiment of the present invention.Stirring blade A3 includes base portion 1, a pair
Blade group (upside blade group and bottommost blade group) 2.
Figure 11 is the perspective view for indicating stirring blade A3.Figure 12 is the main view for indicating stirring blade A3.Stirring blade A3
Top view it is identical as top view (Fig. 3) of stirring blade A1.
Stirring blade A3 is for example installed on agitating device B3 shown in Figure 13.Agitating device B3 includes container 81, rotary shaft
82 and driving portion 83.Container 81 is for storing subject material T.A part of rotary shaft 82 is inserted in the subject material T of container 81
Interior, lower end is equipped with stirring blade A3.Driving portion 83 rotates rotary shaft 82 around axial z, such as with motor.About stirring
The other components for mixing device B3, are not particularly limited, and can be appropriately arranged with shell and the control of supporting container 81 and driving portion 83
The control unit etc. that driving portion 83 drives.
The base portion 1 of stirring blade A3 supports the upper side and lower side blade group 2.Base portion 1 has outer circumference end 10 and a pair of angled face
(incline upward face and lower lateral incline) 11.Outer circumference end 10 is located at the center axial z of base portion 1, and when vertical view is rounded.In addition, outer
All ends 10 become the boundary of the upper side and lower side blade group 2.The upper side and lower side inclined surface 11 on axial z to clamp outer circumference end 10
Mode is arranged.Incline upward face 11 is cone cell upward, and lower lateral incline 11 is cone cell directed downwardly.In the example shown in the series of figures, respectively
Inclined surface 11 is made of the side of truncated cone (truncated cones).
Each blade group 2 along multiple blade parts 20 that direction of rotation θ is arranged by forming.As shown in figure 12, each blade group 2 is more
A blade part 20 is configured in the prescribed limit of axial z.In addition, multiple blade parts 20 of upside blade group 2 are set to and downside
The position that multiple blade parts 20 of blade group 2 are staggered on circumferential θ.Therefore, in one example, multiple blades of upside blade group 2
Portion 20 is not overlapped on axial z with multiple blade parts 20 of bottommost blade group 2.The structure of each blade part 20 and above-mentioned stirring blade
The blade part 20 of A1 is identical.
In the example shown in the series of figures, the number for constituting multiple blade parts 20 of each blade group 2 is 4.In addition, in each blade group
In 2,4 blade parts 20 spacing arrangements such as on circumferential θ are separated from each other 90 degree on circumferential θ.
In the example of Figure 11 and Figure 12, the blade part 20 of upside blade group 2 is configured at the blade part with bottommost blade group 2
20 positions for being staggered 45 degree (90 degree/2) on the θ of direction of rotation.
Figure 14 indicates the stirring blade A4 of the 4th embodiment of the invention.The stirring blade A4 and above-mentioned paddle of diagram
Piece A3 is identical, including a pair of of blade group 2 up and down, such as is installed and used in agitating device B3 (Figure 13).The structure of each blade part 20
It is identical as the blade part 20 of above-mentioned stirring blade A1, A3, there is front curve 27 and rear bending section 28.The vertical view of stirring blade A4
Scheme identical as top view (Fig. 3) of stirring blade A1.In stirring blade A4, multiple blade parts 20 of blade group 2 up and down are constituted
Number it is identical.In addition, multiple blade parts 20 of upside blade group 2 be set on the θ of direction of rotation it is more with bottommost blade group 2
The identical position of a blade part 20.
Figure 15 indicates the stirring blade A5 of the 5th embodiment of the invention.The stirring blade A5 of diagram includes a pair of up and down
Blade group 2.The structure of each blade part 20 is identical as above-mentioned stirring blade A2, has front curve 27, without rear bending section 28.It stirs
The top view for mixing blade A5 is identical as top view (Fig. 6) of stirring blade A2.Multiple blade parts 20 of upside blade group 2 are configured at
Be staggered on the θ of direction of rotation with multiple blade parts 20 of bottommost blade group 2 position of 45 degree (90 degree/2).
Then, illustrate the effect of stirring blade A3~A5 and agitating device B3.
Figure 16~Figure 18 indicates the analysis that the stirring of stirring blade A3~A5 is analyzed using fluid dynamic numerical simulation
Example.Identical as Fig. 7 and Fig. 8, each arrow indicates that (direction of rotation θ component is not considering for the flow direction of the subject material at the point
In range), the flow velocity of the grayscale corresponding objects material in figure, indicating the velocity flow profile of subject material, (direction of rotation θ component does not exist
In limit of consideration).The more shallow region of color, relative velocity is bigger (white area flow velocity is maximum), the deeper region of color, relatively
Flow velocity is smaller (black region flow velocity is minimum).Velocity ratio between adjacent area is 2.15.Each condition of this analysis is as follows.Container 81
Internal diameter be 210mm.Subject material T is high viscosity non-newtonian fluid (sodium carboxymethylcellulose 1.7wt%), and liquid depth is
158mm.The substantial middle of subject material T is configured with stirring blade A3 (Figure 16), A4 (Figure 17) and A5 (Figure 18).Stirring blade A3
The rotation speed (peripheral speed) of~A5 is 10m/s.
When stirring blade A3~A5 is rotated along direction θ, subject material T also can rotational flow in same direction.In addition, by
Figure 16~Figure 18 is it is understood that subject material T flows above and below stirring blade A3~A5 towards stirring blade A3~A5.
Then, flowing on the outside of from the axial z of stirring blade A3~A5 central (near outer circumference end 10) towards radial direction r.Then, along container
81 side wall is flowed towards the liquid level of subject material T or the bottom surface of container 81.Flowing in this way, in stirring blade A3~A5
The left and right sides of axis of rotation generate 2 whirlpools respectively.The flowing mainly useful for subject material T's that the adjoint whirlpool generates
Mixing.In addition, especially near outer circumference end 10, flow velocity is maximum near stirring blade A3~A5.Such part is faster
The dispersion of flow velocity mainly useful for subject material T.
Figure 19 expression under the same conditions, is utilizing fluid dynamics numerical value with fluid analysis example shown in Figure 16~Figure 18
It simulates to analyze the analysis example of outer diameter stirring blade X (Fig. 9) identical with stirring blade A3~A5.As shown in figure 19, it is stirring
Near the outer circumference end of blade X, flow velocity is maximum.In addition, the left and right sides of the axis of rotation in stirring blade X, there are 2 whirlpools.
But in the region of the bottom surface of the liquid level and container 81 of the side wall or subject material T close to container 81, flow velocity is substantially reduced.By
, it is found that opposite with stirring blade X, stirring blade A3~A5 more can suitably being mixed in larger scope in container 81 for this.
The main reason for degree of mixing is high is realized as stirring blade A3~A5, it is identical as stirring blade A1, A2, it is each leaf
The contribution of the front curve 27 in piece portion 20.The strength of front curve 27 attracts and smooth movement is considered as keeping subject material T whole
One reason of body mixing.
In addition, by stirring blade A5 shown in the fluid analysis example of stirring blade A3, A4 shown in Figure 16 and 17 and Figure 18
Fluid analysis example be compared, the thin shade region (the fast region of flow velocity) in Figure 16 and 17 is than the thin shade region in Figure 18
It is wider.The reason is that as described above, stirring blade A3, A4 have rear bending section 28.Strengthened by front curve 27 and is inhaled
Draw, strengthened by rear bending section 28 and be discharged, the two complements each other, and promotes the mixing of subject material T entirety.
Figure 20~Figure 23 is to analyze stirring blade A3~A5 using the another way of fluid dynamic numerical simulation and stir
Mix the analysis example of the stirring of blade X.The condition of these analyses is identical as Figure 16~Figure 19, and the internal diameter of container 81 is 210mm, object
The high viscosity non-newtonian fluid (sodium carboxymethylcellulose 1.7wt%) that material T is 158mm using liquid depth.In the object material
Expect that the substantial middle of T configures stirring blade A3~A5 and stirring blade X.The rotational circle of stirring blade A3~A5 and stirring blade X
Circular velocity is 10m/s.In these analysis examples, subject material T is added with multiple granular markers.Each stain in figure indicates each
A marker.The quantity of marker is 1000.Marker is located at stirring blade A3~A5 and stirring blade X in the initial stage
Surface substantially disc-shaped zone.Specifically, the initial configuration region of marker is the depth from subject material T liquid level
Degree is 40~50mm, and laterally diameter centering on the rotation axis is in the circle of 60mm.Marker tracks the time as from upper
The 0.8168s after initial range addition marker starts is stated, this is equivalent to stirring blade A3~A5 and stirring blade X rotation 6.5
The time of circle.
Firstly, (being stirred in analysis example (stirring blade A3~A5) shown in Figure 20~Figure 22 with analysis example shown in Figure 23
Mix blade X) it compares, marker is distributed in subject material T in larger scope.Especially in the analysis example shown in Figure 23,
Stain near the side of container 81 or near the liquid level of subject material T substantially without indicating marker.In contrast, in Figure 20
In analysis example shown in~Figure 22, there are many markers near the side of container 81 or near the liquid level of subject material T.Such as
Referring to described in Figure 16~Figure 19, this is that stirring blade A3~A5 has the effect of that front curve 27 reaches.
Then, the analysis example (stirring blade A3) of Figure 20 and the analysis example (stirring blade A4) of Figure 21 are compared, are stirred
The marker quantity below blade A3 and stirring blade A4 is mixed to have differences.Specifically, the marker below stirring blade A3
Quantity is 110, and the marker quantity below stirring blade A4 is 47.The reasons why generating this species diversity is as follows.
Stirring blade A3 and stirring blade A4 has upper and lower a pair of angled face 11 in base portion 1, is equipped in each inclined surface 11
Multiple blade parts 20, this point are identical.In addition, subject material T, the row is discharged to the radial outside r by each blade part 20
Fluid out also has on axial z towards the velocity component for the blade group 2 for being located at opposite side.As described above, in stirring blade
In A3, upper and lower blade group 2 mutually staggers half of spacing on the θ of direction of rotation.Therefore, the stirring carried out in stirring blade A3
In, the case where axial z-component of subject material T being discharged from upper and lower blade group 2 interferes with each other, is relatively fewer.Axis will not be interfered
To on z from a blade group 2 towards the flowing of another 2 side of blade group.Admixture discovery of the observation using stirring blade A3, companion
The position (position of outer circumference end 10) equipped with stirring blade A3 is crossed in the whole inner shaft of container 81 with the relatively maelstrom that whirlpool generates
The phenomenon that mobile (i.e. vertical to wear in container 81) to z, can periodically occur.This with there is the mutually vortex that separates up and down on axial z
(not moving along the vertical direction) and formed admixture compare, be more advantageous to promote subject material T entirety mixing.Another party
Face, in stirring blade A4, upper and lower blade group 2 is consistent with each other on the θ of direction of rotation, and therefore, it is difficult to reach and stirring blade A3 phase
Same effect.It follows that can make more markers using stirring blade A3 stirring, the lower section z is mobile in the axial direction.
It is stirred in addition, the longitudinal flow in the container 81 generated by stirring blade A4 stirring is weaker than by stirring blade A3
The longitudinal flow of generation.It on the other hand, converging by the fluid that is discharged from upper and lower blade group 2, can be in the bigger model of radial r
Enclose interior generation flowing.This is suitable for suitably stirring subject material T in the biggish situation of 81 internal diameter of container.
In addition, the analysis example (stirring blade A3) of Figure 20 and the analysis example (stirring blade A5) of Figure 22 are compared, deposit
It is that the marker quantity below stirring blade A3 is 110, and being present in the marker quantity below stirring blade A5 is 72.Such as
Upper described, which is since stirring blade A3 has caused by rear bending section 28.Moreover, it has been found that in stirring blade A5,
Upper and lower blade group 2 mutually staggers half of spacing setting on the θ of direction of rotation, to keep the analysis example than stirring blade A4 more
Marker moves downwards.
Figure 24 indicates to use the agitating device B3 of stirring blade A3.The agitating device B3 of diagram include 2 rotary shafts 82, with
And stirring blade A3 and stirring blade 84.
2 rotary shafts 82 pass through the driving rotation of driving portion 83 respectively.The length and rotation speed of 2 rotary shafts 82 can fit
Work as setting.In the example shown in the series of figures, 2 rotary shafts 82 are parallel to each other, and are set to the rotary shaft at the center (when vertical view) of container 81
82 is longer than another rotary shaft 82.Stirring blade 84 is greater than stirring blade A3 (when vertical view), is configured near the bottom of container 81.
When looking down, the center of stirring blade 84 is consistent with the center of container 81.In addition, according to stirring blade 84 relative to container 81
Size can be such that the center of stirring blade 84 configures far from the central place of container 81.Stirring blade 84 is for example provided for promoting
Into the mixing of the subject material T entirety in container 81.
In the example of Figure 24, stirring blade A3 be set to from overlook when container 81 side wall from center to container 81 it is inclined
The position moved, and be located above stirring blade 84 on axial z.In addition, stirring blade 84 has from central rotary shaft 82
The horizontally extending multiple blades in lower end (illustrated example is 2).Each blade is set as not interfering with the medial surface of container 81
Length, in illustrated example, for the spacing between greater than 2 rotary shafts 82.The revolving speed of unit time when about driving, without special
It limits, as an example, central rotary shaft 82 (and stirring blade 84) is less than another rotary shaft 82 (and stirring blade A3).
The dispersion degree and degree of mixing of subject material T can be also improved by the agitating device B3 of said mechanism.In addition, passing through group
It closes and uses stirring blade 84 and stirring blade A3, can suitably mix and disperse the interior object accommodated of container 81 of larger capacity
Material T.
In conclusion stirring blade A1~A5 of the invention can significantly improve object compared with stirring blade X (Fig. 9)
The degree of mixing of material T.In addition, in order to improve the dispersion degree of subject material T, preferably the rotation speed of raising stirring blade A1~A5
Degree.About this point, even if being also enough to maintain to stir in the case where setting high speed for the rotation speed of stirring blade A1~A5
Mix the mixed effect of the subject material T of blade A1~A5 realization.Therefore, according to stirring blade A1~A5 and agitating device B1, B3,
The dispersion degree and degree of mixing of subject material T can be improved simultaneously.
Stirring blade and agitating device of the invention is not limited to above embodiment.For stirring blade of the invention and stir
The specific structure of each section of device is mixed, various design variations can be freely implemented.
Claims (8)
1. a kind of stirring blade rotated around axle center characterized by comprising
Base portion；With
First side of the base portion, and multiple first blade parts arranged around the axle center are set,
The multiple first blade part includes the inner end radially with the axis perpendicular respectively；With with the inner end phase
The front curve even and to the front of direction of rotation protruded.
2. stirring blade according to claim 1, it is characterised in that:
Each first blade part has rear bending section, and the rear bending section is with the front curve in the radial outside phase
Even, and to the rear of the direction of rotation it protrudes.
3. stirring blade according to claim 1 or 2, it is characterised in that:
Each first blade part with, further away from the base portion, be located the rotation side on the direction of the axis parallel
To the mode in front tilt.
4. stirring blade according to claim 3, it is characterised in that:
Each first blade part relative to the direction with the axis parallel tilt angle more leaning on the radial inside
Greatly.
5. stirring blade according to any one of claims 1 to 4, it is characterised in that:
It further include multiple second blade parts,
The base portion have second side opposite with first side, the multiple second blade part be set to described second side and
It is arranged around the axle center.
6. stirring blade according to claim 5, it is characterised in that:
The position of the multiple first blade part on the direction of rotation is different from the multiple second blade part.
7. stirring blade according to claim 5 or 6, it is characterised in that:
The first inclined surface and the second inclined surface that the base portion has direction opposite toward each other tapered, the multiple first
Blade part is set to first inclined surface, and the multiple second blade part is set to second inclined surface.
8. a kind of agitating device characterized by comprising
Stirring blade according to any one of claims 1 to 7；
For storing the container of stirring object；With
The rotary shaft being inserted into the container, the stirring blade are installed on the rotary shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-115133 | 2016-06-09 | ||
| JP2016115133 | 2016-06-09 | ||
| PCT/JP2017/019543 WO2017212935A1 (en) | 2016-06-09 | 2017-05-25 | Stirring blade and stirring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109310961A true CN109310961A (en) | 2019-02-05 |
| CN109310961B CN109310961B (en) | 2021-08-17 |
Family
ID=60577808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780035206.XA Active CN109310961B (en) | 2016-06-09 | 2017-05-25 | Stirring blade and stirring device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6858184B2 (en) |
| KR (1) | KR102275224B1 (en) |
| CN (1) | CN109310961B (en) |
| WO (1) | WO2017212935A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403346A (en) * | 2020-11-30 | 2021-02-26 | 王建勋 | Jun porcelain slurry stirring equipment and using method thereof |
| CN114053932A (en) * | 2020-07-30 | 2022-02-18 | 精工爱普生株式会社 | Stirring device and stirring method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7237561B2 (en) * | 2018-12-19 | 2023-03-13 | プライミクス株式会社 | Stirrer and Stirrer |
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- 2017-05-25 KR KR1020197000523A patent/KR102275224B1/en active IP Right Grant
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- 2017-05-25 WO PCT/JP2017/019543 patent/WO2017212935A1/en active Application Filing
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| US4109872A (en) * | 1977-07-29 | 1978-08-29 | The Black Clawson Company | Pulping apparatus for liquid slurry stock |
| US5239847A (en) * | 1991-06-12 | 1993-08-31 | Samsung Electronics Co., Ltd. | Agitator for a washing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017212935A1 (en) | 2017-12-14 |
| JP6858184B2 (en) | 2021-04-14 |
| JPWO2017212935A1 (en) | 2019-04-11 |
| KR20190016554A (en) | 2019-02-18 |
| CN109310961B (en) | 2021-08-17 |
| KR102275224B1 (en) | 2021-07-08 |
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