CN101718486A - Sectional type rotor centrifugal particle drier - Google Patents
Sectional type rotor centrifugal particle drier Download PDFInfo
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- CN101718486A CN101718486A CN200910084367A CN200910084367A CN101718486A CN 101718486 A CN101718486 A CN 101718486A CN 200910084367 A CN200910084367 A CN 200910084367A CN 200910084367 A CN200910084367 A CN 200910084367A CN 101718486 A CN101718486 A CN 101718486A
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- centrifugal particle
- type rotor
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Abstract
The invention relates to a centrifugal particle drier of a sectional type rotor, which belongs to the technical field of centrifugal dewatering and drying. The centrifugal particle drier of the sectional type rotor comprises a water separation device and a centrifugal particle drier, wherein the centrifugal particle drier comprises a cylinder body, a sieve mesh, a rotor, a motor and a bracket, the sieve mesh is arranged in the cylinder body, the rotor is arranged in the sieve mesh, the motor is coaxially connected with the rotor, and the bracket is connected with the bottom of the cylinder body and used for supporting the cylinder body. The water separation device is communicated with the bottom of the sieve mesh in the centrifugal particle drier by a guide flume. The rotor is a sectional type rotor, and vanes with four obliquities are distributed on the sectional type rotor and are respectively a bottom vane with a 60 DEG obliquity, a middle vane with a 45 obliquity DEG, an upper vane with a 30 DEG obliquity and a top layer vane with a 90 DEG obliquity. The vanes in each area of the sectional type rotor in the invention have different obliquities because of different functions, the defects of poor drying effect and lower transportation capacity caused by the single obliquity and no sectional distribution of rotor vanes in the prior art are overcome, and the invention has the characteristics of reasonable structure, better drying effect and higher transportation capacity.
Description
Technical field
The present invention relates to centrifugal particle drier, belong to the centrifugal drying technical field.
Background technology
In the prior art, centrifugal particle drier is generally used for polyethylene, polypropylene, polyester and rubber etc. toughness is granular dehydrating.The centrifugal particle drier primary structure comprises pre-dehydration equipment, particulate mass remover, discontinuous helical feed rotor, screen cloth and body.The mixed flow of transporting water and particle is at first sloughed a large amount of transporting water at pre-dehydration equipment place.When being risen by helical feed in the whizzer place, the bump dehydration bounces back into blade again on the screen cloth because of the rotor high-speed centrifugal action is thrown to, and reaches drying purpose by this repeated impact then.The deficiency of traditional centrifugal particle drier is that rotor blade structure is single, all be to adopt equally distributed 45 ° of inclination angle blades, (45 ° of inclination angle blades are meant that the inclination angle that is become with the rotor bottom surface is 45 ° a blade, below blade all according to said method is described), drying effect is relatively poor, and conveying capacity is lower.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of existing centrifugal particle drier, a kind of sectional type rotor centrifugal particle drier is provided, these dry facility have sectional type rotor, and rational in infrastructure, drying effect is better, and conveying capacity is higher.
To achieve these goals, the present invention has taked following technical scheme: this device comprises water separation device and centrifugal particle drier.Described centrifugal particle drier comprises cylindrical shell, be arranged on screen cloth in the cylindrical shell, be arranged on the rotor in the screen cloth, the motor that links to each other with rotor coaxial, the support that is used to support cylindrical shell of linking to each other bottom cylindrical shell, be arranged on the discharge outlet of cylindrical shell bottom sides and be arranged on the discharging opening at cylindrical shell top.Described rotor is a sectional type rotor, is distributed with the blade at four kinds of inclination angles on the sectional type rotor, is followed successively by bottom 60 ° of inclination angle blades, the 45 ° of inclination angle blades in middle part, the 30 ° of inclination angle blades in top and 90 ° of blades of top layer from top to bottom along rotor axial.In the blade at four kinds of inclination angles, the number of the 45 ° of inclination angle blades in middle part is maximum.
Described water separation device mainly comprises guiding skewed slot and sieve plate.The upper end of guiding skewed slot is connected with charging aperture, and the bottom of the screen cloth in lower end and the centrifugal particle drier is connected.The lower surface of guiding skewed slot is a sieve plate, and when the inclined screen plate current of the recirculated water that has particle below the guiding skewed slot was moving, under the effect of impact and gravity, about 90% water was directly deviate from from the sieve plate that tilts, and deviate from water and was discharged by the dehydration outlet.
Blade in the sectional type rotor of above-mentioned centrifugal particle drier is divided into four zones: first district's blade is the 60 ° of inclination angle blades in bottom; Second district's blade is the 45 ° of inclination angle blades in middle part; The 3rd district's blade is the 30 ° of inclination angle blades in top; The 4th district's blade is 90 ° of blades of top layer.
The movement of particles process that is different from the prior art to be thought is single, it is considered herein that particle mainly divides four processes when moving in centrifugal particle drier, first process occurs in rotor bottom, the particle water content that enters here is more, and the blade here mainly plays the effect of particle dehydration, and adopting the inclination angle here is 60 ° blade, the stop of particle is comparatively sufficient, spring collision dehydration is comparatively abundant, alleviates rotor load, strengthens drying effect.Second process occurs in the rotor middle part, enter the particle moisture content less here, the blade here mainly plays the effect of particle drying and conveying, and adopting the inclination angle here is 45 ° blade, and the middle part blade is more, can well play particle spring collision effect dry and that carry fast.The 3rd process occurs in rotor top, the particle water content that enters here is few, the blade here mainly plays stable effect of carrying, here adopting the inclination angle is 30 ° blade, can well play the stable conveying effect of particle, increase the output that drying machine particle transport ability promptly increases drying machine.The 4th process occurs in rotor top, and adopting the inclination angle here is 90 ° blade, mainly plays the effect of discharging particle.
Theoretical and experimental study shows: the speed v that blade tilt θ and particle at the uniform velocity rise along rotor axis
uBetween satisfy following relation: v=wr
aCos θ
So v when θ=45 °
uMaximum, so when θ=30 ° and 60 °, v
uEquate
The v-particle is along the blade rate of climb at the uniform velocity, m/s
r
a-screen cloth internal diameter, m
v
u-particle is along the rotor axis rate of climb at the uniform velocity, m/s
θ-blade lean angle, °
W-rotor speed, rad/s
As can be seen from the above equation: the speed maximum that particle rose when the rotor blade inclination angle was 45 °; The speed that particle rose when blade tilt was 60 ° and 30 ° is less, the speed minimum that particle rose when wherein blade tilt was 60 °.Blade tilt increases, and particle is difficult for rising, drop easily, otherwise particle rise easily, be difficult for dropping.Particle time of staying minimum when so the rotor blade inclination angle is 45 °; When blade tilt is 60 ° and 30 ° the particle time of staying bigger, particle time of staying maximum when wherein blade tilt is 60 °.
Compared with prior art, the present invention has the following advantages:
The blade of sectional type rotor is divided into four zones, and blade has solved prior art rotor blade tilt is single and the subregion not of distributing causes drying effect and the lower deficiency of conveying capacity because of function difference inclination angle difference in each zone.It has rational in infrastructure, and drying effect is better, the characteristics that conveying capacity is higher.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure: 1, centrifugal particle drier, 2, screen cloth, 3, sectional type rotor, 4, cylindrical shell, 5, charging aperture, 6, water separation device, 7, sieve plate, 8, dehydration outlet, 9, motor, 10, support, 11, discharge outlet, 12, the 60 ° of inclination angle blades in bottom, 13,45 ° of inclination angle blades in middle part, 14, the 30 ° of inclination angle blades in top, 15,90 ° of blades of top layer, 16, discharging opening, 17, air inlet.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, the centrifugal particle drier in the present embodiment is made up of water separation device 6 and centrifugal particle drier 1, and water separation device links to each other with the centrifugal particle drier bottom by the guiding skewed slot.The cylindrical shell of water separation device 6 is respectively equipped with charging aperture 5 and dehydration outlet 8 up and down, and the skewed slot bottom of wherein leading is provided with sieve plate 7.Centrifugal particle drier is made up of screen cloth 2, sectional type rotor 3, cylindrical shell 4, motor 9, support 10, discharge outlet 11, the 60 ° of inclination angle blades 12 in bottom, the 45 ° of inclination angle blades 13 in middle part, the 30 ° of inclination angle blades 14 in top, 90 ° of blades 15 of top layer, discharging opening 16 and air inlet 17 etc.Whole particle whizzer 1 all is placed on the support 10.Cylindrical screen 2 is installed in the inboard of cylindrical shell 3, and screen cloth 2 inside are equipped with sectional type rotor 3.The left side and the water separation device 6 of cylindrical shell 3 bottoms are connected, and the right side is equipped with discharge outlet 11, and top right side is equipped with discharging opening 15.Sectional type rotor 3 two ends are separately fixed at cylindrical shell 4 tops and bottom, and the bottom is connected with motor 9 by shaft coupling.Be distributed with the blade at four kinds of inclination angles on the sectional type rotor 3, blade is followed successively by the 60 ° of inclination angle blades 12 in bottom, the 45 ° of inclination angle blades 13 in middle part, the 30 ° of inclination angle blades 14 in top, 90 ° of blades of top layer, 15 compositions from top to bottom along rotor axial, the discontinuous blade here makes and forms many spiral rising passwaies between rotor and screen cloth, cross section of rotor among Fig. 1 is a square, so it has four spiral rising passwaies.Centrifugal particle drier in the present embodiment has sectional type rotor 3, and its blade is divided into four zones, and first district's blade is the 60 ° of inclination angle blades 12 in bottom; Second district's blade is the 45 ° of inclination angle blades 13 in middle part; The 3rd district's blade is the 30 ° of inclination angle blades 14 in top; The 4th district's blade is 90 ° of blades 15 of top layer.Wherein the number of the 45 ° of inclination angle blades 13 in middle part mostly is 5 most, and the number of 60 ° of inclination angle blades 12 in bottom and the 30 ° of inclination angle blades 14 in top is respectively 2, and 90 ° of blades of top layer 15 are a slice.
After extruding pelletizing, the recirculated water that has particle at first flows to following inclination sieve plate 7 along the pre-dehydration passage of water separation device by conveyance conduit, under the effect of impact and gravity, about 90% water is directly deviate from from the sieve plate 7 that tilts, and deviates from water and is discharged by dehydration outlet 8.Particle and surface attachment water thereof fall into whizzer 1 bottom, enter the centrifugal drying system.When whizzer 1 bottom pellet is stacked into rotor 3 lower edges when above, the material that exceeds the lower edge is swept by 60 ° of inclination angle blade 12 edges in first district, high speed rotor rotated lower edge, and upwards promote at its helix that drives the lower edge blade, while impact screen 2 under centrifugal action, slough large quantity of moisture, this is the dehydration of rotor bottom.Particle rises to 45 ° of inclination angle blades 13 in second district along the blade screw line, continue spring bump uphill process, collision back particle surface loses portion of water and is reflected back to higher leveled helical blade, constantly repeat this process subsequently, the moisture of particle surface gradually reduces, thereby reach dry requirement, this is the drying and the course of conveying at rotor middle part.Be thus lifted to 90 ° of inclination angle blades 15 in 30 ° of inclination angle blades 14 in the 3rd district at drying machine top and top and the 4th district when particle after, steadily carried and discharged from discharge nozzle.
Dehydrate in the process, the most of moisture of particle surface falls into the drying machine bottom along screen surface, and discharges from the drying machine bottom.Air inlet 17 generation inverted drafts remove the surface residue humidity of degranulation and stop the moisture more air rising in the drying machine to influence the particle drying effect simultaneously, stop extraneous humid air to enter machine simultaneously.Final product controlled humidity is below 0.05% (low density polyethylene) or 0.85% (nylon PA).After particle left drying machine, with excessive meticulous particle separation, certified products delivered into feed bin by strength by vibratory sieve.
Claims (3)
1. sectional type rotor centrifugal particle drier, comprise water separation device (6) and centrifugal particle drier (1), described centrifugal particle drier (1) comprises cylindrical shell (4), be arranged on screen cloth (2) in the cylindrical shell, be arranged on the rotor in the screen cloth, the motor (9) that links to each other with rotor coaxial, the discharging opening (16) that links to each other the support (10) that is used to support cylindrical shell, the discharge outlet (11) that is arranged on the cylindrical shell bottom sides and be arranged on the cylindrical shell top bottom cylindrical shell; Described water separation device is connected by the bottom of the interior screen cloth (2) of guiding skewed slot and centrifugal particle drier (1); It is characterized in that: described rotor is sectional type rotor (3), be distributed with the blade at four kinds of inclination angles on the sectional type rotor (3), be followed successively by bottom 60 ° of inclination angle blades (12), the 45 ° of inclination angle blades in middle part (13), the 30 ° of inclination angle blades in top (14) and 90 ° of blades of top layer (15) from top to bottom along rotor axial.
2. sectional type rotor centrifugal particle drier according to claim 1 is characterized in that: in the blade at described four kinds of inclination angles, the number of the 45 ° of inclination angle blades in middle part (13) is maximum.
3. sectional type rotor centrifugal particle drier according to claim 1 is characterized in that: be provided with air inlet (17) at the top of cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100843675A CN101718486B (en) | 2009-05-22 | 2009-05-22 | Sectional type rotor centrifugal particle drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100843675A CN101718486B (en) | 2009-05-22 | 2009-05-22 | Sectional type rotor centrifugal particle drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101718486A true CN101718486A (en) | 2010-06-02 |
| CN101718486B CN101718486B (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100843675A Expired - Fee Related CN101718486B (en) | 2009-05-22 | 2009-05-22 | Sectional type rotor centrifugal particle drier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100050458A1 (en) * | 2008-09-02 | 2010-03-04 | Gala Industries, Inc. | Dryer System With Improved Throughput |
| CN108525971A (en) * | 2017-03-02 | 2018-09-14 | 耐克创新有限合伙公司 | Handle the method and system of rubber spherolite |
| TWI738891B (en) * | 2016-10-14 | 2021-09-11 | 美商葛拉工業公司 | Pellet dryer with outlet guidance plate |
| CN113739521A (en) * | 2021-09-24 | 2021-12-03 | 广东九彩新材料有限公司 | Drying device for high-content carbon black master batches |
| CN114608303A (en) * | 2022-03-25 | 2022-06-10 | 合肥三伍机械有限公司 | Small-size grain drying-machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100562154B1 (en) * | 2005-11-16 | 2006-03-17 | 정창의 | Apparatus for drying food garbage |
| CN201006490Y (en) * | 2006-09-22 | 2008-01-16 | 上海瑞威机电设备有限公司 | Helical pusher for highly effective horizontal snail machine |
| CN201417062Y (en) * | 2009-05-22 | 2010-03-03 | 北京化工大学 | Segmented rotor particle centrifugal dryer |
-
2009
- 2009-05-22 CN CN2009100843675A patent/CN101718486B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100050458A1 (en) * | 2008-09-02 | 2010-03-04 | Gala Industries, Inc. | Dryer System With Improved Throughput |
| US8205350B2 (en) * | 2008-09-02 | 2012-06-26 | Gala Industries, Inc. | Dryer system with improved throughput |
| US10119762B2 (en) | 2008-09-02 | 2018-11-06 | Gala Industries, Inc. | Dryer system with improved throughput |
| TWI738891B (en) * | 2016-10-14 | 2021-09-11 | 美商葛拉工業公司 | Pellet dryer with outlet guidance plate |
| CN108525971A (en) * | 2017-03-02 | 2018-09-14 | 耐克创新有限合伙公司 | Handle the method and system of rubber spherolite |
| US11472930B2 (en) | 2017-03-02 | 2022-10-18 | Nike, Inc. | Rubber pellet treatment |
| CN113739521A (en) * | 2021-09-24 | 2021-12-03 | 广东九彩新材料有限公司 | Drying device for high-content carbon black master batches |
| CN113739521B (en) * | 2021-09-24 | 2022-08-23 | 广东九彩新材料有限公司 | Drying device for high-content carbon black master batches |
| CN114608303A (en) * | 2022-03-25 | 2022-06-10 | 合肥三伍机械有限公司 | Small-size grain drying-machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101718486B (en) | 2011-07-27 |
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Granted publication date: 20110727 Termination date: 20120522 |