CN106311040A - Interlaced shoveling plate-type mixer - Google Patents
Interlaced shoveling plate-type mixer Download PDFInfo
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- CN106311040A CN106311040A CN201510349360.7A CN201510349360A CN106311040A CN 106311040 A CN106311040 A CN 106311040A CN 201510349360 A CN201510349360 A CN 201510349360A CN 106311040 A CN106311040 A CN 106311040A
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Abstract
The invention provides an interlaced shoveling plate-type mixer, the mixer comprises a mixer main body, the mixer main body is rotated with a rotating shaft, a shoveling plate is arranged on the mixer main body, the long edge of the shoveling plate is fixed on the inner wall of the mixer main body, the length direction of the shoveling plate is parallel with the rotating shaft, and the length of the shoveling plate is less than that of the cross section of the shoveling plate. A structure of the mixer is simple, the mixture is used for mixing the particle materials, the axial direction mixing efficiency is high, the time for an axial direction mixing balance state is short, the influence degree of the major axis to the mixing speed of the mixer main body is reduced, the mixture is suitable for high efficiency mixing of the materials with different physical properties, filling rates and filling modes.
Description
Technical field
The invention belongs to mixing equipment and technology, particularly relate to a kind of staggered flight formula blender.
Background technology
In chemical industry, there are about the product of half and the raw material of 3/4ths belongs to particulate matter, thus
Powder technology for particulate matter obtains relatively broad concern and research, and at pharmacy, pottery, water
The fields such as mud, coal, metallurgy, food, the energy and chemical industry have the most universal application.According to estimates, exist
Related industries department, owing to people are the most deep enough, by granular material to the understanding of particle flow and mixing mechanism
The reduction of the industrial equipment utilization ratio that the problem that the conveying of material and mixing aspect meet with is brought and energy consumption
Waste be up to 40%, this far do not reach design parameter optimization and save the energy requirement.
Currently, radially mixed is relatively strong, be easy to the manufacturing, easily operated cleaning because of it for cylinder mixer
Etc. feature, more it is applied to the mixing of particulate matter, is dried and the different types of course of processing such as grinding.
But, the axial backmixing ability of cylinder mixer is more weak, therefore, generally uses less in its design process
Cylinder draw ratio, thus weaken the impact that entirety is mixed by axial backmixing.Nonetheless, axial backmixing effect
Rate still greatly limit the lifting of roller equipment entirety mixing efficiency, and limits rolling significantly
The commercial Application of cylinder mixing apparatus.
CN 102294191 A discloses the mixing arrangement of a kind of powder body material and granular materials, this mixing arrangement
Including mix cylinder, the inwall of mix cylinder being provided with flight, described flight is by main flight and secondary flight
Composition, the most main flight is ribbon in many groups, and often in group, one end of ribbon is directly installed on the interior of mix cylinder
On wall, and organize interior ribbon more and be uniformly distributed, between the fixing clearance of every two groups of main flights, be the most uniformly provided with
One group of pair flight, secondary flight is and the blade of main flight reversed arrangement, and secondary flight is arranged on mixed by bracing frame
Closing on the inwall of cylinder, i.e. install with main flight staggered floor, height is in the range of 0.1-0.6m, but this mixing
Apparatus structure is complicated, and its axial backmixing is inefficient, reaches axial backmixing poised state required time relatively
Long；CN 203853034U discloses a kind of rare earth functional fertilizer production mixer, and this mixer includes shell
Body, the main shaft being arranged in housing by bearing, the flight that is arranged on main shaft, the upper end of described housing sets
Having charging aperture, the lower end of housing is provided with discharging opening, and described flight and main shaft are 5-10 ° of angle, flight interior
End is fixedly connected on main shaft, and the outer end of flight is fixedly connected with perching knife, and described perching knife is vertical with flight to be set
Putting, the stage casing of described flight is provided with strip small opening, but, when this mixer is used for the mixing of granule materials,
Easily get stuck, and mixed effect is the best.
Summary of the invention
Present invention aims to the deficiency that prior art exists, it is provided that a kind of staggered flight formula mixing
Device, described mixer structure is simple, and for the mixing of granule materials, axial backmixing efficiency is high, reaches axial
Time needed for combined balance system state is short, and can weaken the length-width ratio of blender main body to mixing efficiency
Influence degree.
For reaching this purpose, the present invention by the following technical solutions:
A kind of blender, described blender includes blender main body, described blender main body with axis of rotation,
Described blender main body is provided with flight, and the long limit of described flight is fixed on the inwall of blender main body, copies
The length direction of plate and shaft parallel, the length of flight is less than the length in cross section, flight place.
The number of described flight is the even number more than zero.
Preferably, the number of described flight is 2-10.
Preferably, the number of described flight is 4 or 6.
The projection in rotating shaft of the long limit of each flight not exclusively overlaps.
Preferably, described flight is equidistantly distribution.
The length of described flight is 0.6-0.9 with the length ratio in its cross section, place.
Preferably, the length of each flight is identical.
The width of described flight is 0.1-0.5 with the ratio of the width in its cross section, place.
Preferably, the width of each flight is identical.
Described flight is installed vertically on the inwall of blender main body.
Described blender be conical mixers, cylinder mixer, twin cone mixer, vee-blender or
Side's cone blender.
Preferably, described blender is cylinder mixer.
Preferably, the draw ratio of described cylinder mixer intermediate roll is 0.1-4.0.
Described blender also includes feeding device and power set, described feeding device and described blender main body
Connecting, described power set are connected with described rotating shaft.
Described power set are motor.
Preferably, described feeding device is funnel.
Compared with prior art, the invention have the benefit that
1, the granule mixer that the present invention provides, the length of the flight that its blender main body inner wall is installed is little
The length in the cross section of the blender main body in flight place, and described flight staggers and is arranged on blender main body
Inwall on, it is possible to while retaining the radial direction mixed that original cylinder is excellent, be greatly promoted blender
Axial backmixing efficiency, its mixing efficiency has respectively reached and has mixed with full flight cylinder without flight cylinder mixer
16 times of device with 5 times, and its reach axial backmixing poised state needed for time short；
2, the granule mixer simple in construction that the present invention provides, it is possible to weaken the length-width ratio pair of blender main body
The influence degree of mixing efficiency；
3, the granule mixer that the present invention provides, be applicable to different physical property, filling rate (less than 60%) with
And the high efficient mixed of the granule materials of filling mode.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cylinder of the staggered flight formula cylinder mixer that embodiment 1 provides；
Wherein, 1, cylinder；2, cylinder left side；3, cylinder right side；4, left side the first flight；
5, left side the second flight；6, right side the first flight；7, right side the second flight.
Fig. 2 is that the increasing of granule materials is mixed mechanism signal by the staggered flight formula cylinder mixer that embodiment 1 provides
Figure；
Fig. 3 is that the cylinder mixer of embodiment 1, embodiment 8 and embodiment 9 offer is for granule materials
Mixing, at the mixed effect figure of different mixing moment granules；
Fig. 4 is the draw ratio influence curve figure to the mixing velocity of granule materials of cylinder；
Fig. 5 is that the arrangement mode of flight is to the influence curve figure of the mixing velocity of granule in cylinder；
Fig. 6 is the cylinder interior flight number the installed influence curve figure to granule mixing velocity.
Detailed description of the invention
The invention provides a kind of blender, described blender includes blender main body, described blender main body
With axis of rotation, described blender main body is provided with flight, and blender main body is fixed on the long limit of described flight
Inwall on, the length direction of flight and shaft parallel, the length of flight is less than the length in cross section, flight place
Degree.
The number of described flight is the even number more than zero.
Preferably, the number of described flight is 2-10, such as 2,4,6,8 or 10 etc..
Preferably, the number of described flight is 4 or 6.
The increase of flight number can promote it that radial direction of granule sheds effect to a certain extent, but mistake
Many flights can cause the reduction of flight spacing, will cause granule blocking between flight on the contrary, thus reduces
The mixing efficiency of granule.
As preferred technical scheme, the blender that the present invention provides, the throwing in rotating shaft of the long limit of each flight
Shadow not exclusively overlaps.
Preferably, described flight is equidistantly distribution.
The length ratio in the length of described flight and its cross section, place is 0.6-0.9, such as 0.65,0.7,0.75,
0.8 or 0.85 etc..
Each flight in described blender can be the flight of equal length, it is also possible to be copying of different length
Plate.
Preferably, the length of each flight is identical.
Described flight promotes the granule axial diversion effect along flight, and the length of flight to a certain extent
Degree affects the distribution in blender main body of the flight axial end, thus carries out axial convective motion to along flight
Particle position produce considerable influence, and affect granule between flight axial circulation motion.
The width of described flight is 0.1-0.5 with the ratio of the width in its cross section, place, such as 0.1,0.2,0.3,0.4
Or 0.5.
Each flight in described blender can be the flight of same widths, it is also possible to be copying of different in width
Plate.
Preferably, the width of each flight is identical.
Along with the increase of flight width, the effect of shedding of the radial direction of flight is day by day notable, thus to a certain extent
Promote radial direction mixing and the axial backmixing of granule.But, when flight width is closer to even equal to mix
During the half of device main body radical length, partial particulate is likely between the flight in cylinder occur certain to block up
Plug, this will reduce the axial backmixing performance of granule on the contrary.
Described flight is installed vertically on the inwall of blender main body.Described flight is upright flight.
Described blender be conical mixers, cylinder mixer, twin cone mixer, vee-blender or
Side's cone blender.
Preferably, described blender is cylinder mixer.
Preferably, the draw ratio of described cylinder mixer intermediate roll is 0.1-4.0, such as 0.2,0.5,0.8,
1.0,1.2,1.5,1.8,2.0,2.5,3.0,3.2,3.5 or 3.8 etc..
Preferably, the draw ratio of described cylinder is 1-1.5.
When the draw ratio of described cylinder mixer intermediate roll is 0.1-4.0, granule materials is mixed by described blender
Conjunction efficiency is best, and along with the increase of cylinder draw ratio, axial solids mixing performance will be gradually reduced, but relatively
For, (flight length is equal to rolling for the cylinder without flight of its mixed performance still above routine or full flight cylinder
Tube length degree).
In view of the application in industrial quarters of the long cylinder is relatively broad, the design of the most described flight has particularly significant
Potential industrial application value.
The blender that the present invention provides can weaken the cylinder draw ratio shadow for its mixing efficiency to a certain extent
The degree of sound, provides for the raising of granule mixing efficiency in roller equipment and the further genralrlization of its range of application
A kind of design with higher feasibility.
The inwall of described flight and blender main body has smooth or coarse surface.
Described blender also includes feeding device and power set, described feeding device and described blender main body
Connecting, described power set are connected with described rotating shaft.
Described power set are motor.
Preferably, described feeding device is funnel.
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Embodiment 1
Fig. 1 is the structural representation of staggered flight formula cylinder mixer intermediate roll 1.Wherein, L, D and R
It is respectively the length of cylinder 1, diameter and radius, LbWith WbBeing respectively length and the width of flight, ω is rolling
The velocity of rotation of cylinder 1.It is axially installed with flight along cylinder 1, the long limit of flight on the inwall of described cylinder 1
Being fixed on the inwall of cylinder 1, flight can rotate with cylinder 1, and the number of flight is 4, left side
One flight 4 is close to cylinder left side 2 with left side the second flight 5；Right side the first flight 6 and right side second
Flight 7 is close to the length of 3,4 flights in cylinder right side and width is the most identical, and is equidistantly point
Cloth, described is axially the direction along cylinder 1 length L.Draw ratio L/D of described cylinder 1 is 0.1-4.0,
Length L of described flightbRatio L with cylinder 1 length Lb/ L is 0.6-0.9, the width W of described flightb
Ratio W with the radius R of cylinder 1b/ R is 0.1-0.5.
Embodiment 2
A kind of cylinder mixer, the structure of described cylinder mixer and the staggered flight formula rolling described in embodiment 1
The structure of cylinder blender is identical, and unique difference is, 4 flights are installed near cylinder left side
On the inwall of 2, and the projection that the long limit of 4 flights is on roller shaft is completely superposed.
Embodiment 3
A kind of cylinder mixer, the structure of described cylinder mixer and the staggered flight formula rolling described in embodiment 1
The structure of cylinder blender is identical, and unique difference is, 4 flights are mounted on the middle part of cylinder, and
The projection on roller shaft of the long limit of 4 flights is completely superposed.
Embodiment 4
A kind of staggered flight formula cylinder mixer, the structure of described cylinder mixer and the friendship described in embodiment 1
The structure of wrong flight formula cylinder mixer is identical, and unique difference is, the number of flight is 2, point
It is not arranged close on the inner wall of rotary drum of cylinder left side 2 and cylinder right side 3.
Embodiment 5
A kind of staggered flight formula cylinder mixer, the structure of described cylinder mixer and the friendship described in embodiment 1
The structure of wrong flight formula cylinder mixer is identical, and unique difference is, the number of flight is 6, its
In, 3 flights are arranged close on the inner wall of rotary drum of cylinder left side 2, and 3 flights are arranged close to cylinder
On the inner wall of rotary drum of right side 3, the spacing of 6 flights is identical.
Embodiment 6
A kind of staggered flight formula cylinder mixer, the structure of described cylinder mixer and the friendship described in embodiment 1
The structure of wrong flight formula cylinder mixer is identical, and unique difference is, the number of flight is 8, its
In, 4 flights are arranged close on the inner wall of rotary drum of cylinder left side 2, and 4 flights are arranged close to cylinder
On the inner wall of rotary drum of right side 3, the spacing of 8 flights is identical.
Embodiment 7
A kind of staggered flight formula cylinder mixer, the structure of described cylinder mixer and the friendship described in embodiment 1
The structure of wrong flight formula cylinder mixer is identical, and unique difference is, the number of described flight is 10
Individual, wherein, 5 flights are arranged close on the inner wall of rotary drum of cylinder left side 2, and 5 flights are arranged on and lean on
On the inner wall of rotary drum of nearly cylinder right side 3, the spacing of 10 flights is identical.
Embodiment 8
A kind of without flight cylinder mixer, the structure of described cylinder mixer and staggered described in embodiment 1 are copied
Board-like cylinder mixer structure is identical, and difference is: do not contain flight in cylinder.
Embodiment 9
A kind of full flight cylinder mixer, the structure of described cylinder mixer and staggered described in embodiment 1 are copied
Board-like cylinder mixer structure is identical, and difference is: the length of flight is identical with the length of cylinder.
Mixed performance is tested:
The mixing quality index that the present invention uses is characterized by the relative standard deviation of mixed zone granule density, and
By acquired results compared with current conventional tumble blender.Sampling method is " number grid " method
(Chemical Engineering Science 58 (2003) 401-415), is divided into Finite Number by Mixed Zone
The grid that mesh is equivalently-sized, analyzes (numbers of particles needs in grid accordingly to grid middle particle concentration
More than certain certain value, elect 50 herein as).The computational methods of standard deviation are (AICHE Journal 48
(2002)50-58)
Wherein, C is the actual concentration of certain component, CiBeing certain concentration of component in i-th sample, N is sample
Number.
Staggered flight formula cylinder mixer described in embodiment 1 is used for the mixing of granule materials, in cylinder not
Particles Distribution in the same time is as shown in Figure 2.Wherein, a, b and c represent what incorporation time was gradually increased
Particles Distribution.In order to more clearly describe granule motion feature, figure show only part flight.
Figure it is seen that staggered flight formula cylinder mixer can not only promote that the radial direction of granule sheds effect,
And stronger granule axial diversion effect can be introduced；Additionally, exist a certain degree of in cylinder end
Particles circulation flow.Owing to axial diversion effect can remarkably promote the axial convection current mixing of granule, thus lead
Causing effective lifting of granule entirety mixed performance, therefore this factor is to improving cylinder endocorpuscular mixed performance tool
It is of great significance.
Embodiment 1, embodiment 8 and the cylinder mixer described in embodiment 9 are used for the mixing of granule materials,
Its same mixture moment mixed effect as shown in Figure 3.Wherein, A is without flight cylinder, and B is staggered
Flight formula cylinder, C is full flight cylinder.The mixed effect of B from figure is it can be seen that prolonging over time
Long, initially lay respectively at two kinds of granules in region, cylinder left and right and gradually produce the motion on axially, and both
Mixability constantly increases；The mixed effect to granule of A and C is less than B, and the different arrangements of flight are described
Mode has a significant impact for Particle Mixing Result tool, relative to conventional cylinder without flight and the rolling of full flight
Cylinder, staggered flight formula cylinder mixer can promote the mixing of granule quickly.
Embodiment 1, embodiment 8 and the cylinder mixer described in embodiment 9 are used for the mixing of granule materials,
The impact on granule materials mixing velocity of the draw ratio of research cylinder, result is as shown in Figure 4.From figure permissible
Finding out, staggered flight formula cylinder mixer is along with the increase of cylinder draw ratio, and it axially increases mixed ability and presents one
Fixed downward trend.But, under the conditions of several different cylinder draw ratios (1,1.5,2 and 3), hand over
The mixing velocity of granule materials is mixed by wrong flight formula cylinder mixer the most to some extent more than without flight cylinder
Device and full flight cylinder mixer.Illustrate that described staggered flight formula cylinder mixer can weaken cylinder draw ratio
Impact on mixing velocity.
The cylinder described in the cylinder mixer described in embodiment 1-3 and embodiment 8 and embodiment 9 is utilized to mix
Device hybrid particles material, its mixing velocity is as shown in Figure 5.In cylinder, granule is at initial left and right filling mode
Under, the relative standard deviation of particle system rotates, along with cylinder, the change that the number of turns occurs.At this kind of filling mode
Under, the axial backmixing impact of restriction cylinder mixed performance will be further magnified, become main restriction because of
Element.From fig. 5, it can be seen that compared with conventional cylinder mixer without flight and full flight cylinder mixer,
Staggered flight formula cylinder mixer can significantly improve the axial backmixing performance of granule in cylinder, its mixing efficiency
Respectively reached 16 times without flight cylinder mixer and full flight cylinder mixer with 5 times.Further, implement
The mixing velocity of the cylinder mixer of example 1-3 is all higher than without flight cylinder mixer and full flight cylinder mixer
Mixing velocity, illustrate reduce flight length, the beneficially raising of granule mixing efficiency；Additionally, implement
The mixing velocity of the staggered flight formula cylinder mixer described in example 1 is more than described in embodiment 2 and embodiment 3
The mixing velocity of cylinder mixer, illustrates that the mixed performance of granule in cylinder is had great by the arrangement mode of flight
Impact, alternating expression flight shows the most superior in terms of promoting granule mixed performance.
Staggered flight formula cylinder mixer described in embodiment 1 and embodiment 4-7 at different revolutions to particulate matter
The mixing velocity of material is as shown in Figure 6.Described mixing velocity is based on the particles filled mode in initial left and right and relatively
The time evolution of standard deviation.As seen from Figure 6, when flight number is less (such as 2), along with
Increasing of flight number, in cylinder, the mixed performance of granule is consequently increased.But, flight spacing is with flight
The increase of number and reduce, too much flight number will cause the granule between flight to block on the contrary, thus reduces mixed
Close efficiency.It can be seen that optimum flight number is between 4-6.
Applicant states, the foregoing is only the detailed description of the invention of the present invention, but protection scope of the present invention
Being not limited thereto, person of ordinary skill in the field is it will be clearly understood that any skill belonging to the art
Art personnel in the technical scope that the invention discloses, the change that can readily occur in or replacement, all fall within the present invention
Protection domain and open within the scope of.
Claims (9)
1. a blender, described blender includes that blender main body, described blender main body turn with rotating shaft
Dynamic, described blender main body is provided with flight, it is characterised in that blender is fixed on the long limit of described flight
On the inwall of main body, the length direction of flight and shaft parallel, the length of flight is less than cross section, flight place
Length.
Blender the most according to claim 1, it is characterised in that the number of described flight is for being more than
The even number of zero；
Preferably, the number of described flight is 2-10；
Preferably, the number of described flight is 4 or 6.
Blender the most according to claim 2, it is characterised in that the long limit of each flight is in rotating shaft
Projection not exclusively overlap；
Preferably, described flight is equidistantly distribution.
4. according to the blender one of claim 1-3 Suo Shu, it is characterised in that the length of described flight with
The length ratio in cross section, flight place is 0.6-0.9；
Preferably, the length of each flight is identical.
5. according to the blender one of claim 1-4 Suo Shu, it is characterised in that the width of described flight with
The ratio of the width in cross section, flight place is 0.1-0.5；
Preferably, the width of each flight is identical.
6. according to the blender one of claim 1-5 Suo Shu, it is characterised in that described flight right angle setting
On the inwall of blender main body.
7. according to the blender one of claim 1-6 Suo Shu, it is characterised in that described blender is circular cone
Shape blender, cylinder mixer, twin cone mixer, vee-blender or side's cone blender；
Preferably, described blender is cylinder mixer；
Preferably, the draw ratio of described cylinder mixer intermediate roll is 0.1-4.0.
8. according to the blender one of claim 1-7 Suo Shu, it is characterised in that described blender also includes
Feeding device and power set, described feeding device is connected with described blender main body, described power set with
Described rotating shaft is connected.
Blender the most according to claim 8, it is characterised in that described power set are motor；
Preferably, described feeding device is funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349360.7A CN106311040B (en) | 2015-06-23 | 2015-06-23 | Staggered shoveling plate type mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349360.7A CN106311040B (en) | 2015-06-23 | 2015-06-23 | Staggered shoveling plate type mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311040A true CN106311040A (en) | 2017-01-11 |
| CN106311040B CN106311040B (en) | 2022-07-01 |
Family
ID=57727947
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510349360.7A Active CN106311040B (en) | 2015-06-23 | 2015-06-23 | Staggered shoveling plate type mixer |
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| CN201350401Y (en) * | 2009-01-19 | 2009-11-25 | 山东兄弟科技股份有限公司 | Batch mixer |
| EP2346471A2 (en) * | 2008-10-08 | 2011-07-27 | Sanyasi R. Kalidindi | Method for alternately sifting and blending powders in the same operation |
| CN202169152U (en) * | 2011-07-11 | 2012-03-21 | 攀枝花泓兵钒镍有限责任公司 | Mixer roller for laterite nickel ore |
| CN202199301U (en) * | 2011-07-21 | 2012-04-25 | 合肥科德电力表面技术有限公司 | Powder mixer |
| CN203556328U (en) * | 2013-09-27 | 2014-04-23 | 安徽省林锦记食品工业有限公司 | Tilting efficient material mixing device |
| CN203710956U (en) * | 2014-01-06 | 2014-07-16 | 大连海洋大学 | Horizontal-type drum mixer |
| CN203899593U (en) * | 2014-04-30 | 2014-10-29 | 浙江鼎龙化工有限公司 | Stainless steel reaction still |
-
2015
- 2015-06-23 CN CN201510349360.7A patent/CN106311040B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2346471A2 (en) * | 2008-10-08 | 2011-07-27 | Sanyasi R. Kalidindi | Method for alternately sifting and blending powders in the same operation |
| CN201350401Y (en) * | 2009-01-19 | 2009-11-25 | 山东兄弟科技股份有限公司 | Batch mixer |
| CN202169152U (en) * | 2011-07-11 | 2012-03-21 | 攀枝花泓兵钒镍有限责任公司 | Mixer roller for laterite nickel ore |
| CN202199301U (en) * | 2011-07-21 | 2012-04-25 | 合肥科德电力表面技术有限公司 | Powder mixer |
| CN203556328U (en) * | 2013-09-27 | 2014-04-23 | 安徽省林锦记食品工业有限公司 | Tilting efficient material mixing device |
| CN203710956U (en) * | 2014-01-06 | 2014-07-16 | 大连海洋大学 | Horizontal-type drum mixer |
| CN203899593U (en) * | 2014-04-30 | 2014-10-29 | 浙江鼎龙化工有限公司 | Stainless steel reaction still |
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| Publication number | Publication date |
|---|---|
| CN106311040B (en) | 2022-07-01 |
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