CN105268347A - Dynamic friction disperser - Google Patents
Dynamic friction disperser Download PDFInfo
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- CN105268347A CN105268347A CN201410244653.4A CN201410244653A CN105268347A CN 105268347 A CN105268347 A CN 105268347A CN 201410244653 A CN201410244653 A CN 201410244653A CN 105268347 A CN105268347 A CN 105268347A
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- dispersion
- ring
- central dispersion
- bellmouth
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Abstract
The invention relates to a fluid dynamic friction disperser, which mainly comprises an outer dispersing ring drive motor (1), an upper coupling (2), an outer dispersing ring (3), an upper motor seat (4), a dispersing pool (5), an inner dispersing ring (6), an inner dispersing ring drive motor (7), a lower coupling (8), a lower motor seat (9), a slurry inlet pipe (10), a slurry outlet pipe (11), an inner dispersing ring shaft (13), and an outer dispersing ring shaft (12), wherein the inner dispersing ring (6) is arranged in the inner round hole of the outer dispersing ring (3), the outer dispersing ring (3) is arranged in the dispersing pool (5), and inner ring horizontal liquid outlet cone holes (6b) are radially distributed on the inner dispersing ring (6). According to the present invention, the slurry distributed on the ring inner diameter wall surface of the high-speed rotating inner dispersing ring (6) is sprayed toward the external of the inner dispersing ring (6) through the inner ring horizontal liquid outlet cone holes (6b), the sprayed slurry impacts the ring inner wall of the oppositely-rotating outer dispersing ring (3), the agglomerated dry material ball in the slurry interacts with the rotating outer dispersing ring (3) to form the dynamic friction at the impacting moment, the agglomerated dry material ball in the slurry is affected by the dynamic friction, and the dynamic friction makes the agglomerated dry material ball be dispersed.
Description
Technical field
The present invention relates to a kind of dispersion technology, particularly dynamic friction disperser.
Background technology
Pharmaceutical production, industrial chemicals, coating, lithium ion battery manufacture etc., generally need to adopt powder and solution mixing system sizing process, whether powder pulping process is by agglomerated particle dispersion in powder, be related to product quality quality, along with nano-powder extensive use, the dispersion link of nano-powder pulping process has become the difficult point of bottleneck, particularly nano-lithium ion cell positive pole, negative material is in pulping process, when the particle of reuniting fails to reach dispersion object, properties of product are caused and has a strong impact on, existing stirring-type dispersion technology, to shear, disturbance theory, complete according to following six stages:
First stage, solid-liquid batch mixing, in batch mixing process, pressed powder is formed with aggregated form powder reuniting dry bulb;
Second stage, in the solution, reunion siccative ball surface is by solution impregnation for reunion dry bulb;
Phase III, reunion dry bulb siccative ball of reuniting under the shearing and disturbance of paddle is broken;
Fourth stage, under the shearing of mixer and disturbance, broken aggregate siccative ball disperses in the solution further;
Five-stage, the reunion siccative ball of dispersion mixes under the disturbance of mixer, becomes particle suspension mixed solution;
In 6th stage, under the continuation disturbance stirring action of mixer, broken reunion siccative ball particle is dispersed in solution further, becomes finely dispersed lithium battery coating sizing-agent.
Existing solid-liquid pulping process for mixed, nearly all agitating mode slurrying, all need just can reach abundant dispersion by above-mentioned six stages, be uniformly dispersed object, once fragmentation failed by powder reuniting siccative ball, the dispersion of reunion siccative ball just can not realize.
Disturbance shearing mechanism, reach the shearing-crushing all agglomerated particles being obtained to mixing arm, each individual reunion siccative ball just must be made by the shearing of mixer arm, and the paddle of existing mixer promotes solid-liquid mixed serum in the mode of screw to spin motion, under the relative motion of mixer arm and solid-liquid mixed serum, make the reunion siccative ball in mixing arm shearing slurries, the dry material ball crushing of agglomerated, and the relative motion of mixer arm and solid-liquid mixed serum, reunion siccative ball is sheared and there is probability opportunistic, fail to contact the reunion siccative ball occurring to shear with mixer arm, the squeezing action be difficult between reunion siccative ball and reunion siccative ball is broken, institute in, existing mixer prepare lithium ion battery pulping process for up to 6 hours, some lithium battery materials even need the longer time, by the chance that long-time stirring increase mixer arm is repeatedly sheared reunion siccative ball, some lithium ion battery have employed nano-powder material, the micro-nano reunion siccative ball that these nano-powders are formed, use existing mixer shear perturbation mode, it is more difficult that reunion siccative ball is sheared fragmentation fully.
Summary of the invention
The present invention is directed to the defect of existing mixer disturbance shearing mechanism, propose a kind of dynamic friction disperser.
Dynamic friction disperser of the present invention is theoretical based on dynamic friction, according to kinetic force of friction formula:
F
f moves=ukF
n
In formula
F
f moves-kinetic force of friction
Uk-dynamic friction factor
F
n-normal pressure
There is proportional relation in kinetic force of friction and normal pressure.
Technical solution of the present invention is as follows
Interior central dispersion is installed in the interior circular hole of outer central dispersion, dispersion pond is installed in the external diameter direction of outer central dispersion, dispersion installs motor cabinet above pond, upper motor cabinet towards upper end install outer central dispersion drive motors, outer central dispersion drive motors connects upper coupling, and upper coupling connects outer central dispersion by outer dispersion annulate shaft.Install lower motor cabinet below dispersion pond, interior central dispersion drive motors installed by lower motor cabinet towards lower end, interior central dispersion drive motors connects lower coupler, central dispersion in lower coupler is connected by interior dispersion annulate shaft.
Charging inner ring centripetal angle feed liquor bellmouth is furnished with bottom interior central dispersion.
When outer central dispersion drive motors and interior central dispersion drive motors synchronous working, outer central dispersion and interior central dispersion opposite direction rotating.
When interior central dispersion rotates, interior central dispersion forms centrifugal effect, the path port of the inner ring of arranging bottom interior central dispersion centripetal angle feed liquor bellmouth is liquid inlet direction, outside bottom interior central dispersion, liquid outlet is the large footpath of inner ring centripetal angle feed liquor bellmouth, in the inner side bottom interior central dispersion, when interior central dispersion High Rotation Speed, inner ring centripetal angle feed liquor bellmouth produces from absorption charging slurry, after slurry enters inner ring centripetal angle feed liquor bellmouth, slurry is under the tapering diffusion effect of taper hole, slurry produces acceleration at bellmouth, slurry enters in the ring of interior central dispersion with the potential energy of acceleration, circulation is formed rapidly in the ring of interior central dispersion, be distributed in the inwall in the ring of interior central dispersion.Under the centrifugal action of the interior central dispersion formation of High Rotation Speed, the slurry being distributed in the ring internal face of interior central dispersion is sprayed outward by the inside central dispersion ring of inner ring horizontal fluid bellmouth, the ring inwall of the outer central dispersion of the slurry ejected and opposite direction rotating clashes into, the moment of clashing into, the interaction of the reunion siccative ball in slurry and the rotary speed of outer central dispersion forms kinetic force of friction, interior central dispersion rotary speed is higher, the pressure that the ring inwall of the external central dispersion of slurry clashes into is larger, the normal pressure that reunion siccative ball in slurry is subject to and frictional force larger, the rotary speed of outer central dispersion is higher, siccative ball of reuniting in slurry is subject to normal pressure and frictional force is also larger, siccative ball of reuniting in slurry is subject to normal pressure and frictional force is larger, reunion siccative ball will be more remarkable by dispersion effect.
The path port of the horizontal fluid bellmouth of inner ring is liquid inlet direction, liquid outlet is the large footpath of inner ring centripetal angle feed liquor bellmouth, slurry flows in taper hole, due to tapering diffusion effect, the ring inwall that slurry produces the outside central dispersion of acceleration in bellmouth clashes into, and this acceleration effect increases in slurry the normal pressure and frictional force that siccative ball of reuniting is subject to.
Outer central dispersion High Rotation Speed produces centrifugal force, the slurry that interior central dispersion is sprayed is along the inwall swirling motion of outer central dispersion, under the effect of the centrifugal force of central dispersion High Rotation Speed outside, slurry sprays from outer shroud centripetal angle fluid bellmouth and the horizontal fluid bellmouth of outer shroud and enters dispersion pond, due to the eddy flow potential energy that outer central dispersion High Rotation Speed produces, make the slurries entering dispersion pond in the up flowing of dispersion pond internal face, slurries in the up flowing of dispersion pond internal face, then flow through the discharging of the stock discharge pipe in dispersion pond.
Be arranged in the centripetal angle fluid bellmouth at outer central dispersion top and the path port of the horizontal fluid bellmouth of outer shroud is liquid inlet, the inner side of central dispersion outside, liquid outlet is large footpath, the outside of central dispersion outside, slurry is in the tapering diffusion effect of taper hole, slurry is entered in taper hole and produces acceleration injection, this acceleration forms self-priming effect, self-priming effect makes the slurry of the inwall swirling two-phase flows of outer central dispersion spray to dispersion pond, the path port being arranged in the horizontal fluid bellmouth of outer central dispersion outer shroud is liquid inlet, the inner side of central dispersion outside, liquid outlet is large footpath, the outside of central dispersion outside, the tapering diffusion effect of slurry in taper hole, slurry is entered in taper hole and produces acceleration injection, this acceleration forms self-priming effect, self-priming effect makes the slurry of the inwall swirling two-phase flows of outer central dispersion spray to dispersion pond,
The effect of kinetic force of friction larger reunion siccative ball dispersion is more obvious.
According to kinetic force of friction formula, physical property between uk with two move toward one another contact surfaces is relevant, the contact surface uk that roughness is larger is larger, in blank preparation technics, reunion siccative spherolite footpath is larger very similar to the larger feature of roughness, and larger uk is larger for reunion siccative ball, on the contrary, reunion siccative ball is broken, disperses more thorough, and uk is less.That is, disperseed after uk dynamic friction factor can reduce thereupon.
F
nrelevant with the movement velocity of two move toward one another, in dynamic friction disperser technical scheme of the present invention, slurry fluid expulsion pressure depends on interior central dispersion and outer central dispersion opposite direction rotating speed, interior central dispersion and outer central dispersion opposite direction rotating speed higher, F
nalso can be larger.Regulate the speed of outer central dispersion drive motors and interior central dispersion drive motors can obtain optimum dispersion effect.
Compared with existing mixer arm shearing-crushing aggregate dry bulb, in solid-liquid mixed serum, aggregate dry bulb forms dynamic friction fragmentation by interior central dispersion and outer central dispersion move toward one another, aggregate dry bulb dispersion efficiency is significantly higher than existing mixer arm shearing-crushing, and the time of slurrying significantly shortens.
Accompanying drawing explanation
Fig. 1 is dynamic friction disperser principle assumption diagram, in figure, on 1 outer central dispersion drive motors, 2 upper couplings, 3 outer central dispersions, 4, in motor cabinet, 5 dispersion ponds, 6, in central dispersion, 7, central dispersion drive motors, 8 lower couplers, 9 times motor cabinets, 10 slurry feed pipes, 11 stock discharge pipes, 13 interior dispersions disperse annulate shaft outside annulate shafts, 12;
Fig. 2 is outer central dispersion structure chart, in figure, disperses annulate shaft, 3a outer shroud centripetal angle fluid bellmouth, centripetal angle α outside 3 outer central dispersions, 12
1-2be 30 ° ~ 60 ° preferably 45 °, angle of countersink α
1be 2 ° ~ 30 °, preferably 5 ° of path ports are inside ring, in ring top layout, and the horizontal fluid bellmouth of 3b outer shroud, angle of countersink α
2be 2 ° ~ 30 °, preferably 5 ° of path ports are inside ring, in ring radial arrangement;
Fig. 3 is interior central dispersion structure chart, in figure, disperses central dispersion, 6a inner ring centripetal angle feed liquor bellmouth in annulate shaft, 6, centripetal angle α in 13
3-4be 40 ° ~ 70 °, preferably 50 °, cone angle a3 is 2 ° ~ 30 °, and preferably 5 °, path port, outside ring, is arranged bottom ring, the horizontal fluid bellmouth of 6b inner ring, cone angle
4be 2 ° ~ 30 °, preferably 5 °, path port inside ring, in ring radial arrangement;
Fig. 4 is the top view of Fig. 2, in figure, and 12 outer shroud dispersion axle, 3a outer shroud centripetal angle fluid bellmouths;
Fig. 5 is the top view of Fig. 3, in figure, and dispersion annulate shaft, 6a inner ring centripetal angle feed liquor bellmouth in 13;
Fig. 6 is dynamic friction disperser operation principle schematic diagram of the present invention, in figure, central dispersion device axle in central dispersion, 6a inner ring centripetal angle feed liquor bellmouth, the horizontal fluid bellmouth of 6b inner ring, 11 stock discharge pipes, 13 in 3 outer central dispersions, 3b outer shroud horizontal fluid bellmouth, 5 dispersion ponds, 6.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the drawings and specific embodiments
As Fig. 2, shown in Fig. 6, interior central dispersion 6 is installed in the interior circular hole of outer central dispersion 3, the outer circle diameter of outer central dispersion 3 is to installation dispersion pond 5, dispersion installs motor cabinet 4 above pond 5, outer central dispersion drive motors 1 is installed in the upper end of upper motor cabinet 4, and outer central dispersion drive motors 1 connects upper coupling 2, and upper coupling 2 connects outer central dispersion 3 by outer dispersion annulate shaft 12.Install lower motor cabinet 9 below dispersion pond 5, interior central dispersion drive motors 7 is installed in the lower end of lower motor cabinet 9, and interior central dispersion drive motors 7 connects lower coupler 8, and lower coupler 8 connects interior central dispersion 6 by interior dispersion annulate shaft 13.
As shown in Figure 6, when outer central dispersion drive motors 1 and interior central dispersion drive motors 7 work asynchronously, outer central dispersion 3 and interior central dispersion 6 opposite direction rotating.
As Fig. 2, shown in Fig. 6, when interior central dispersion 6 rotates, the centrifugal action of interior central dispersion 6, enter from slurry feed pipe 10, then, enter in the ring of interior central dispersion 6 from the inner ring feed liquor bellmouth 6a of interior central dispersion 6, under the centrifugal action that central dispersion 6 is formed in High Rotation Speed, slurry is distributed along the inwall of interior central dispersion 6, be distributed in the slurry of the internal face of interior central dispersion 6, sprayed outward by inner ring horizontal fluid bellmouth 6b inside central dispersion 6 ring of interior central dispersion 6 radial arrangement, the inwall of the outer central dispersion 3 of the slurry ejected and opposite direction rotating clashes into, the pressure that the inwall of the external central dispersion of slurry 3 clashes into is larger, aggregate dry bulb in slurry is subject to frictional force and normal pressure is larger, the rotary speed of outer central dispersion 3 is larger, in slurry, aggregate dry bulb is subject to normal pressure and frictional force is also larger, in slurry, aggregate dry bulb is subject to normal pressure and frictional force is larger, aggregate dry bulb will be remarkable by dispersion effect.
As shown in Figure 6, the centrifugal force that outer central dispersion 3 High Rotation Speed produces, the slurry that interior central dispersion 6 is sprayed is along the inwall swirling motion of outer central dispersion 3, the slurry of the inwall swirling motion of outer central dispersion 3, spray from outer shroud centripetal angle fluid bellmouth 3a and outer shroud horizontal fluid bellmouth 3b and enter dispersion pond 5, through disperseing the discharging of the stock discharge pipe 11 in pond 5.
As shown in Figure 3, the path being arranged in the inner ring centripetal angle feed liquor bellmouth 6a bottom interior central dispersion 6 is liquid inlet direction at path port outside ring, bigger diameter end mouth is liquid outlet direction inside ring, after slurry enters inner ring centripetal angle feed liquor bellmouth 6a, the tapering diffusion effect of taper hole, make slurry enter bellmouth and produce acceleration, slurry enters in the ring of interior central dispersion 6 with the potential energy of acceleration, and in the ring of interior central dispersion 6, formation circulation is distributed in the inwall in the ring of interior central dispersion 6 rapidly.Under in High Rotation Speed, central dispersion 6 produces the effect of centrifugal force, make slurry along the inwall swirling two-phase flows of interior central dispersion 6, the effect of centrifugal force, sprayed outward by inner ring horizontal fluid bellmouth 6b inside central dispersion 6 ring being arranged in interior central dispersion 6 ring radial direction at the slurry of interior central dispersion 6 internal face, due to the taper hole diffusion effect of inner ring horizontal fluid bellmouth 6b, make slurry enter taper hole and produce acceleration, slurry is injected into the inwall of outer central dispersion 3 with acceleration potential energy, this taper hole diffusion effect, the reunion siccative ball that the potential energy formed increases in slurry is subject to normal pressure and frictional force, agglomerated siccative ball is more remarkable by dispersion effect.
Claims (3)
1. one kind by outer central dispersion drive motors (1), upper coupling (2), outer central dispersion (3), upper motor cabinet (4), dispersion pond (5), interior central dispersion (6), interior central dispersion drive motors (7), lower coupler (8), lower motor cabinet (9), slurry feed pipe (10), stock discharge pipe (11), interior dispersion annulate shaft (13), the dynamic friction disperser that outer dispersion annulate shaft (12) forms, it is characterized in that: interior central dispersion (6) is installed in the interior circular hole of outer central dispersion (3), the outer circle diameter of outer central dispersion (3) is to installation dispersion pond (5), motor cabinet (4) is installed in dispersion pond (5) top, outer central dispersion drive motors (1) is installed in the upper end of upper motor cabinet (4), outer central dispersion drive motors (1) connects upper coupling (2), upper coupling (2) connects outer central dispersion (3) by outer dispersion annulate shaft (12), lower motor cabinet (9) is installed in dispersion pond (5) below, interior central dispersion drive motors (7) is installed in the lower end of lower motor cabinet (9), interior central dispersion drive motors (7) connects lower coupler (8), central dispersion (6) in lower coupler (8) is connected by interior dispersion annulate shaft (13).
2. it is characterized in that by dynamic friction disperser according to claim 1: the horizontal fluid bellmouth (6b) of radial arrangement inner ring of interior rotation central dispersion (6), inner ring horizontal fluid bellmouth (6b) taper angle of spot hole α
4it is 2 ° ~ 45 °, preferably 5 °, arrange inner ring centripetal angle feed liquor bellmouth 6a bottom interior central dispersion 6, the path port of inner ring centripetal angle feed liquor bellmouth 6a outside ring, inner ring feed liquor bellmouth (6a) and the centripetal angle α in interior central dispersion (6) center of circle
3-4be 40 ° ~ 70 °, preferably 50 °.
3. it is characterized in that by dynamic friction disperser according to claim 1: outer central dispersion (3) radial arrangement outer shroud centripetal angle fluid bellmouth (3a), the angle of countersink α at outer shroud centripetal angle fluid bellmouth (3a)
1be 2 ° ~ 30 °, preferably 5 °, the centripetal angle α in outer shroud centripetal angle fluid bellmouth (3a)
1-2be 30 ° ~ 60 ° preferably 45 °, outer shroud horizontal fluid bellmouth (3b) the taper angle of spot hole α of outer central dispersion (3) radial arrangement
2be 2 ° ~ 45 °, preferably 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244653.4A CN105268347A (en) | 2014-05-26 | 2014-05-26 | Dynamic friction disperser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244653.4A CN105268347A (en) | 2014-05-26 | 2014-05-26 | Dynamic friction disperser |
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| Publication Number | Publication Date |
|---|---|
| CN105268347A true CN105268347A (en) | 2016-01-27 |
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ID=55138705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410244653.4A Pending CN105268347A (en) | 2014-05-26 | 2014-05-26 | Dynamic friction disperser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693760A (en) * | 2016-12-13 | 2017-05-24 | 力信（江苏）能源科技有限责任公司 | High speed dispersing device |
| CN107308849A (en) * | 2017-08-11 | 2017-11-03 | 上海弗鲁克科技发展有限公司 | Sub- high speed nano-fluid disperser |
-
2014
- 2014-05-26 CN CN201410244653.4A patent/CN105268347A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693760A (en) * | 2016-12-13 | 2017-05-24 | 力信（江苏）能源科技有限责任公司 | High speed dispersing device |
| CN107308849A (en) * | 2017-08-11 | 2017-11-03 | 上海弗鲁克科技发展有限公司 | Sub- high speed nano-fluid disperser |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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| WD01 | Invention patent application deemed withdrawn after publication |