CN101327418B - Novel super fine powder fluidizing equipment - Google Patents
Novel super fine powder fluidizing equipment Download PDFInfo
- Publication number
- CN101327418B CN101327418B CN2008100585452A CN200810058545A CN101327418B CN 101327418 B CN101327418 B CN 101327418B CN 2008100585452 A CN2008100585452 A CN 2008100585452A CN 200810058545 A CN200810058545 A CN 200810058545A CN 101327418 B CN101327418 B CN 101327418B
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- CN
- China
- Prior art keywords
- bed body
- fine powder
- super fine
- gas distribution
- fluidizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000843 powder Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 1
- 229910000410 antimony oxide Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims 1
- 229910001887 tin oxide Inorganic materials 0.000 claims 1
- 235000010215 titanium dioxide Nutrition 0.000 claims 1
- 238000005243 fluidization Methods 0.000 abstract description 23
- 230000009471 action Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000013590 bulk material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present invention discloses a novel ultrafine powder fluidizing device which is arranged in a certain elevation angle, and the angle can be adjusted properly according to the character of material. The bottom is equipped with an air distributing board, and a bed body with a spiral slot rotates around the air distributing board. A screw feeder sends the material to the upper part of the columnar bed body with the spiral slot, the bed body is driven by a motor to rotate continuously and move down to enter into the fluidizing part, and at the same time, the rotation of the bed body is good for improving the fluidizing quality. After the feeding quantity is more than set processing quantity, well fluidized powder can be discharged from a pore at the lower part of the bed body under the action of centrifugal force, casted material is concentrated at the internal wall of an annular cover body outside the bed body and finally slides out from a cover opening. An inclined rotary fluidizing device can ensure that the ultrafine powder has very good fluidization quality. The device is characterized by being capable of working continuously with high reliability and has the wide application range of the ultrafine material; the device is simple for manufacturing and has wide industrial use.
Description
Technical field
Patent of the present invention relates to field of powder engineering, particularly relates to a kind of equipment that improves superfine powder fluidization quality, can be used for the various superfine powders of fluidisation.
Technical background
As everyone knows, the superfine powder yardstick is generally between the asking of molecule, atom and bulk material, makes a general reference the small pressed powder of 10nm in 100 mu m ranges usually, comprises multiple powder body materials such as metal, nonmetal, organic and inorganic and biology.Ultra-fineization along with material, its surface electronic structure and crystal structure change, produced the skin effect that bulk material did not have, small-size effect, quantum effect and macro quanta tunnel effect, thereby made the fluidization characteristic of ultra-fine grain and common powder that very big difference be arranged.Along with reducing of powder size, specific area enlarges markedly, surface atom increases, because the geometric configuration of surface atom, spin configuration, interaction between atoms power and electron spectrum all are different from bulk material, very strong viscous effect power is arranged between the ultra-fine grain, mainly comprise Van der Waals force, capillary tension, electrostatic force etc.This viscous force will significantly impact the ultra-fine grain fluidization characteristics, easily produce channel and joint gushes.Generally can be by external force auxiliary as: add sound field, magnetic field and the mechanical oscillation of bed body and wait and improve fluidization quality.
Vibrated fluidized bed is by bed body up-down vibration thereby vibrational energy to be introduced the gas-solid fluidization technology that common fluid bed improves fluidization quality, on behalf of maximum bed, the frequency that it causes resonance expand and chaotic stimulating frequency, and it can form uniform fluidized state under very low fluidizing gas velocity.Fluidized particles mutually in, the adding of vibrational energy is for the stability that keeps bed, the volume of keeping the fluidization desired gas has important effect.Though vibrated fluidized bed has lot of advantages, still there are some problems in actual applications.As the vibration of vibrated fluidized bed, the vibrating motor that required power is bigger, along with the increase of mass of vibration, the power of corresponding motor increases, and energy consumption is very big like this.And in vibration processes, the dynamic stress on the vibration parts increases, thereby very high to the requirement of body intensity, if do not take some corresponding measures, some parts of machine (as cell body, side plate, sieve plate etc.) are more fragile.
Summary of the invention:
The present invention can solve the problem of above-mentioned existence, and a kind of equipment that improves superfine powder fluidization quality is provided, and can be used for the various superfine powders of fluidisation.
The present invention adopts following technical scheme: the present invention includes the tilt table body, a screw rod conveyer above the oblique bed body, tilt table body inwall has helicla flute, motor rotates by gear band movable bed body, there is an aperture at 1/10 place below the bed body, the bed body is with the fixed ring-like cover of a bottom opening at the aperture position place, gas distribution grid is equipped with in bed body bottom, and the bed body can rotate around it.With bottom connection be conical cavity, gas is fed by the osculum of conical cavity.
Novel super fine powder tilting rotary fluid equipment provided by the invention is placed by certain inclination angle, and angle can suitably be adjusted according to the character of material.Gas distribution grid is equipped with in the bottom, and band spiral fluted bed body rotates around it.The screw rod conveyer is sent material into the top of being with the cylindrical bed of spiral fluted body, and the bed body constantly rotates under the drive of motor, and it is moved down, and enters the fluidisation part, and the rotation of a body simultaneously helps improving fluidization quality.Be higher than the treating capacity of setting when inlet amount after, the part that fluidisation is good can be from the aperture discharging of bed body bottom under action of centrifugal force, and the material that throws away is enriched in the annular cover body inwall of external of bed, skids off from the cover mouth at last.This tilting rotary fluid equipment can make superfine powder have good fluidization quality.
The invention belongs to and add a kind of novel fluidized bed of mechanical force, compare with vibrated fluidized bed and have many good qualities.The rotation of bed body can make material enter the fluidisation position simultaneously and plays auxiliary fluidisation.Because the pulse jitter of particle, strengthened gas-solid, the contact between solid, reduced the cementing machine meeting, so improved transfer rate, improved fluidization quality.And motor only drives the rotation of a body among the present invention, and energy consumes little, and is also not high to the requirement of body intensity, and the rotation of bed body can continue the material that enters to be fed forward, thereby and reduces interparticle adhesive force and improve fluidization quality.
Advantage of the present invention:
1. effective.Handle identical superfine powder, the best fluid effect that reaches by the present invention of adjusting parameter is better than the optimum efficiency that vibrated fluidized bed reaches, and pressure drop fluctuation is little.
2. can be many for regulating parameter.The present invention has two to regulate parameter, and bed body gradient and bed body rotating speed have reduced the designing requirement to gas distribution grid, can regulate by parameter.
3. energy consumption is little.Motor is the rotation that drives the bed body among the present invention, and energy consumes little, and is also not high to the requirement of body intensity.
4. can produce continuously.Common fluid bed and vibrated fluidized bed are difficult to all realize serialization production that mostly be intermittent operation, this equipment is easy to realize the continuous production of super fine powder fluidizing processing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1: 1, air inlet, 2, the taper air chamber, 3, taper air chamber fixture, 4, gas distribution grid, 5, the outer cover that goes in ring, 6, the outer cover fixture of going in ring, 7, bed body, 8, helicla flute, 9, motor, 10, travelling gear, 11, screw rod conveyer, 12, bed body turning cylinder, 13, discharging opening, 14, aperture, 15 hydraulic presses.
The specific embodiment
The present invention includes tilt table body 7, a screw rod conveyer 11 above the tilt table body 7, tilt table body 7 inwalls have helicla flute 8, motor 9 drives bed body 7 by travelling gear 10 and rotates, there is an aperture 14 at 1/10 place below the bed body 7, bed body 7 is with the fixed belt outer cover 5 of a bottom opening in aperture 14 positions, gas distribution grid 4 is equipped with in bed body 7 bottoms, and bed body 7 can rotate around it.With bottom connection be taper air chamber 2, gas is fed by the air inlet 1 of taper air chamber 2.The particle size range of its powder is between 20nm-500 μ m.
Novel super fine powder tilting rotary fluid equipment provided by the invention is placed by certain inclination angle, and angle can suitably be adjusted according to the character of material.Gas distribution grid 4 is equipped with in the bottom, and band spiral fluted bed body 7 rotates around it.Screw rod conveyer 11 is sent material into the top of being with the cylindrical bed of spiral fluted body 7, and bed body 7 constantly rotates under the drive of motor 9, and it is moved down, and enters the fluidisation part, and the rotation of a body 7 simultaneously helps improving fluidization quality.Be higher than the treating capacity of setting when inlet amount after, the part that fluidisation is good can be from aperture 14 dischargings of bed body bottom under action of centrifugal force, and the material that throws away is enriched in the annular cover body inwall of external of bed, skids off from the cover mouth at last.This tilting rotary fluid equipment can make superfine powder have good fluidization quality.
The concrete course of work is: material is transported to a body 7 through screw rod conveyer 11, bed body 7 inwalls have helicla flute 8, motor 9 drives bed body 7 by travelling gear 10 and rotates around gas distribution grid 4, gas distribution grid 4 is fixedly linked with taper air chamber 2, taper air chamber 2 is fixing through taper air chamber fixture 3, fluidizing gas feeds from air inlet 1, the material on bed body 7 tops is delivered to a body 7 inside along conveying worm 11, the material of handling well throws away from aperture 14 under action of centrifugal force, the material impacting that throws away is on belt outer cover 5, the inwall of the belt outer cover 5 in last edge is from discharging opening 13 dischargings, can rotate around bed body turning cylinder at the effect of hydraulic press 15 body 7 of leaving the bed, thereby regulate the inclination angle of bed body.
Claims (4)
1. super fine powder fluidizing equipment, form by bed body (7), taper air chamber (2), screw rod conveyer (11), motor (9), screw rod conveyer (11) is sent into material on the top of band spiral fluted cylindrical bed body (7), it is characterized in that: gas distribution grid (4) is equipped with in bed body (7) bottom, gas distribution grid (4) is fixedly linked with taper air chamber (2), bed body (7) tilts to place, adjustable angle, and bed body (7) band helicla flute (8) also can rotate around gas distribution grid (4);
Described bed body (7) bottom has an aperture (14), bed body (7) outside is with the annular outer cover (5) that discharging opening (13) is opened in the bottom, bed body (7) rotates around annular outer cover (5), and the material that throws away can be collected by annular outer cover (5), and the discharging opening (13) from annular outer cover (5) skids off at last.
2. super fine powder fluidizing equipment according to claim 1 is characterized in that: the inclination angle of described bed body (7) can be adjusted according to the character of material in 2 ° of-50 ° of changes of angle, makes fluidized state the best of material.
3. super fine powder fluidizing equipment according to claim 1 is characterized in that: described gas distribution grid (4) maintains static, and bed body (7) rotates around it, and velocity of rotation is between 10 rev/mins-500 rev/mins.
4. super fine powder fluidizing equipment according to claim 1, it is characterized in that: described superfine powder is meant metal and nonmetallic oxide powders such as superfine titanium white, white carbon, aluminium oxide, zirconia, tin oxide, antimony oxide, perhaps both above mixtures, the particle size range of its powder is between 20nm-500 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100585452A CN101327418B (en) | 2008-06-17 | 2008-06-17 | Novel super fine powder fluidizing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100585452A CN101327418B (en) | 2008-06-17 | 2008-06-17 | Novel super fine powder fluidizing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101327418A CN101327418A (en) | 2008-12-24 |
| CN101327418B true CN101327418B (en) | 2011-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100585452A Expired - Fee Related CN101327418B (en) | 2008-06-17 | 2008-06-17 | Novel super fine powder fluidizing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN101327418B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216198A (en) * | 2015-10-20 | 2016-01-06 | 重庆跃发日用品有限公司 | Based on the automation feed system of the Mold for Plastics binder blending cylinder of its top feed |
| CN106994322A (en) * | 2017-04-25 | 2017-08-01 | 东南大学 | A kind of centrifugal field harmony field coordination strengthens the device of nanoparticle fluidization |
| CN109701382B (en) * | 2019-02-28 | 2022-05-17 | 兖矿集团有限公司 | Superfine powder dispersing and spraying system and processing method and application thereof |
| CN115539765B (en) * | 2022-08-25 | 2023-05-23 | 苏州易合医药有限公司 | Powder rotary fluidization device and method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514325A2 (en) * | 1991-05-17 | 1992-11-19 | HILTI Aktiengesellschaft | Rotary drum transportation device |
| CN1820827A (en) * | 2006-01-20 | 2006-08-23 | 哈尔滨工业大学 | Horizontal inclined rotary fluidized bed desulfurizing reactor |
-
2008
- 2008-06-17 CN CN2008100585452A patent/CN101327418B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514325A2 (en) * | 1991-05-17 | 1992-11-19 | HILTI Aktiengesellschaft | Rotary drum transportation device |
| CN1820827A (en) * | 2006-01-20 | 2006-08-23 | 哈尔滨工业大学 | Horizontal inclined rotary fluidized bed desulfurizing reactor |
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| Publication number | Publication date |
|---|---|
| CN101327418A (en) | 2008-12-24 |
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Granted publication date: 20111019 Termination date: 20140617 |
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| EXPY | Termination of patent right or utility model |