CN100457297C - Turbine classifier for processing powder - Google Patents
Turbine classifier for processing powder Download PDFInfo
- Publication number
- CN100457297C CN100457297C CNB200610023545XA CN200610023545A CN100457297C CN 100457297 C CN100457297 C CN 100457297C CN B200610023545X A CNB200610023545X A CN B200610023545XA CN 200610023545 A CN200610023545 A CN 200610023545A CN 100457297 C CN100457297 C CN 100457297C
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- Prior art keywords
- labyrinth
- plate
- impeller
- powder processing
- blade
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- 239000000843 powder Substances 0.000 title description 3
- 238000009700 powder processing Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Abstract
The invention discloses a turbine grading machine for powder processing. It includes a grading room, cover piece which is equipped on the grading room and is connected with it firmly, main axle is equipped in the cover piece and grading room, blade wheels which are in said grading room and installed on main axle; the blade wheels are welded by frames and blade group, said frames includes a axle sleeve, maze plate welded on the axle sleeve from up to down and forming ''Wang-type'' construction, central plate and end plate; a plurality of blades are equipped on the sides of said maze plate, central plate and end plate in equidistance. The invention can greatly enhance the super-fine grading capacity of product, and structure is simple and cost is low. The invention can be assemblyed in tilting miller and also be sold or use separately.
Description
Technical field
The present invention relates to a kind of pendulum type ring roll pulverizer that is used for powder processing, particularly relate to a kind of grader of pendulum type ring roll pulverizer.
Background technology
R type pendulum type ring roll pulverizer (Raymond mill) is one of the most universal most widely used milling equipment in the powder processing industry.Since earlier 1960s, first 4R Raymond mill introduced from U.S. Lei Meng company in Shanghai, equipment spread to all parts of the country very soon, and kind extends to 3R, 5R until 6R (R represents the diameter of impeller).Three during the last ten years the whole nation formed the industry size that has several hundred tame Raymond machine device fabrication factories and several ten thousand tame users, it serves to show its popularity.Its advantage is: applied range, and product fineness is moderate; Simple to operation, directly be processed into qualified powder from original ore, accomplish without any letup; Dry process can be dried simultaneously even modification is handled; Device structure is simple, and maintenance easily; Device fabrication producer spreads all over the country, and complete machine and fittings supply are convenient; Cheap, investment and production run cost are low or the like.
Grader is the key components that guarantee product fineness in the pendulum type ring roll pulverizer, and it both can be assemblied in the pendulum type ring roll pulverizer also can sell use separately.
The finished product Design Orientation of existing Raymond mill is in the scope of 80-325 order (logical sieve rate 95%).The grader that it adopts (referring to Fig. 1) is the individual layer analyzer of axial fan type.The blade 1 of this grader less, rotating speed is low, and blade 1 is linear velocity difference (grading range broad) everywhere radially, and the short bulky grain that easily causes in big path, gap, place, labyrinth leaks.Therefore the Cut size of this grader is bigger, has bulky grain to pollute easily, can't be applicable to the needs of ultra-fine accurate classification.
In order to improve the fineness of product, increase output, more domestic R﹠D institutions adopt the method for a plurality of minor diameter turbine classifier of combined type parallel connection that the classification fineness is improved.At present both at home and abroad extensively the ATP type turbine type superfine classifier that adopts adopts many wheel combinations for improving output under the prerequisite of guaranteeing the classification fineness, the maximum φ 500 * 6 that accomplishes.This design is complex structure not only, but also will guarantee synchronous operation between each impeller, so the very high also easy care not of cost.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of turbine classifier that is used for powder processing, and it can significantly promote the super-fine classified ability of product, and simple in structure, and cost is low.
For solving the problems of the technologies described above, the present invention is used for the turbine classifier of powder processing, comprises a grading room, is arranged on this grading room and the case of fixedlying connected with it, be located in the main shaft in case and the grading room, be positioned at described grading room and be arranged at impeller on the main shaft; This impeller is formed by skeleton and blade assembly welding, described skeleton comprises an axle sleeve, be welded on the labyrinth plate, intermediate plate, the base plate that form king's font structure on the axle sleeve from top to bottom, pitch is distributed on the side end face of described labyrinth plate, intermediate plate, base plate between a plurality of blades etc.; Described grading room be shaped as conical shell, its bottom radius equals 1 times of impeller diameter.
Because adopt said structure, turbine classifier of the present invention is the column-style structure, linear velocity is identical everywhere when rotating at a high speed, so the high narrow range of Cut size precision.Minimum Cut size can arrive 2500 orders (≤5 μ m) although adopted single major diameter impeller.And output increases by area because of impeller, and the single-wheel configuration can be satisfied the production capacity demand.Compare with a plurality of minor diameter turbine classifier of combined type parallel-connection structure, designs simplification, cost reduce, and easy operating is safeguarded.Labyrinth structure can effectively stop bulky grain to pass through.Corollary equipment cost, energy efficient have been simplified because of need not pressure-air.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is existing grader structure chart;
Fig. 2 is a grader structure chart of the present invention;
Fig. 3 is the impeller vertical view in the grader of the present invention;
Fig. 4 is that C-C among Fig. 3 is to cutaway view;
Fig. 5 is that E among Fig. 3 is to partial enlarged drawing;
Fig. 6 is that D among Fig. 3 is to partial enlarged drawing.
The specific embodiment
As shown in Figure 2, the grader that the present invention is used for powder processing is a turbine classifier, and it adopts the column type structure.
Described turbine classifier comprises a grading room 7, impeller 6, case 12, main shaft 10, buncher 14, big belt pulley 13, small belt pulley 15.
Described grading room 7 be shaped as conical shell, tapering is 60 °, its bottom radius equals 1 times of impeller 6 diameters substantially.Described case 12 is arranged on the grading room 7, is bolted to connection together.Be provided with collar bush 11 in this case 12.
Described impeller 6 is positioned at described grading room, forms (in conjunction with Fig. 4) by skeleton 16 and blade 17 assembly weldings.Described skeleton 16 is formed king's font structure by axle sleeve 21, labyrinth plate 20, intermediate plate 19, base plate 18, and labyrinth plate 20, intermediate plate 19, base plate 18 are welded on the axle sleeve 21 from top to bottom.Pitch is distributed on the side end face of described labyrinth plate 20, intermediate plate 19, base plate 18 between a plurality of blade 17 grades.
Described main shaft 10 is arranged in collar bush 11 and the axle sleeve 21 by bearing, impeller 6 rotations.The outer end that main shaft 10 is positioned at case 12 is provided with small belt pulley 15, and the axle head of buncher 14 is provided with big belt pulley 13, is connected by driving belt 25 between big belt pulley 13 and the small belt pulley 15.Impeller 6 can be dragged by buncher 14 like this, adopts the transmission of one-level speedup, and can realize stepless speed regulation.Because impeller 6 adopts the transmission of one-level speedup, the stepless excursion of rotating speed is big, and maximum speed can reach 1400～1750 rev/mins.Because of impeller diameter big (550mm or 750mm) cutting particle diameter linear velocity can satisfy the super-fine classified needs of≤1500 orders (dp≤8 μ m) up to 50～55 meter per seconds.
The radical N of described blade 17 is 0.1～0.15 times of impeller 6 circumference L (mm), ratio≤0.3 (combining Fig. 5) of pitch L/N between the thickness H of blade 17 and blade.Adopt the turbine classifier of above-mentioned parameter, under the situation of shape that cooperates suitable grading room 7 and the graded region between impeller and size, minimum Cut size all can realize≤the super-fine classified requirement of 5 μ m.
The side end face of the labyrinth plate 20 of described skeleton 16, intermediate plate 19, base plate 18 is provided with the notch 22 (combine Fig. 3,5) suitable with described blade 17, and blade 17 is inserted in the described notch 22.The side end face of described labyrinth plate 20, intermediate plate 19, base plate 18 is provided with V-shaped welding groove 23 (referring to Fig. 6) along circumference.After blade 17 inserted notch 22, three weldering circles of built-up welding accurately were fixed on blade 17 on " king " font skeleton 16 in V-shaped welding groove 23.Impeller 6 behind the assembly welding need carry out fine finishining again and do dynamic balancing.
Described labyrinth plate 20 adopts double-deck long labyrinth labyrinth 8, and the end play in labyrinth 8 is adjustable.This labyrinth structure labyrinth approach not only dark not only narrow (it is following that labyrinth 8 end plays are adjustable to 1mm) but also long, and through 8 quarter bends, its relative linear velocity is very high.The blade 17 that import 9 places rotate at a high speed can produce auxiliary centrifugal action, stop oarse-grained infiltration, so labyrinth 8 sealing effectiveness is extremely strong, and its performance surpasses advanced pressurized seal.According to measured data, the bulky grain of revealing at labyrinth place less than 100,000/.The water content of the 8 pairs of raw materials in this labyrinth requires tight (best≤6%), powder for the higher raw material of classification water content such as bentonite, attapulgite, shepardite (moisture content is separated out in grinding), little gap in the labyrinth 8 rises sharply the impeller resistance easily by all plugs, can't work long hours.
After adopting grader of the present invention, the high pressure blower air quantity Q of coupling reduced near half more help super-fine classified (Cut size dp ∝ √ Q/N).
Grader of the present invention can satisfy the needs of ultra-fine Accurate Classification, and production capacity is big, the structure letter Single, volume is little, working service and speed regulating control are all very convenient, dependable performance.
Claims (8)
1, a kind of turbine classifier that is used for powder processing, it is characterized in that: it comprises a grading room, be arranged on this grading room and the case of fixedlying connected, be located in the main shaft in case and the grading room, be positioned at described grading room and be arranged at impeller on the main shaft with it; This impeller is formed by skeleton and blade assembly welding, described skeleton comprises an axle sleeve, be welded on the labyrinth plate, intermediate plate, the base plate that form king's font structure on the axle sleeve from top to bottom, pitch is distributed on the side end face of described labyrinth plate, intermediate plate, base plate between a plurality of blades etc.; Described grading room be shaped as conical shell, its bottom radius equals 1 times of impeller diameter.
2, the turbine classifier that is used for powder processing as claimed in claim 1, it is characterized in that: the tapering of described grading room is 60 °.
3, the turbine classifier that is used for powder processing as claimed in claim 1 or 2, it is characterized in that: the radical N of described blade is 0.1～0.15 times of the long L of circumference of impeller, ratio≤0.3 of pitch L/N between the thickness H of described blade and blade.
4, the turbine classifier that is used for powder processing as claimed in claim 1, it is characterized in that: the side end face of the labyrinth plate of described skeleton, intermediate plate, base plate is provided with and the suitable notch of described blade, this blade is inserted in the described notch, and the side end face of described labyrinth plate, intermediate plate, base plate is provided with V-shaped welding groove along circumference.
5, the turbine classifier that is used for powder processing as claimed in claim 1, it is characterized in that: described impeller is dragged by stepless speed-regulating motor, adopts the transmission of one-level vee-pulley speedup.
6, as claim 1,2, the 4 or 5 described turbine classifiers that are used for powder processing, it is characterized in that: described labyrinth plate adopts double-deck long labyrinth labyrinth structure, and the end play in labyrinth is adjustable.
7, the turbine classifier that is used for powder processing as claimed in claim 3 is characterized in that: described labyrinth plate adopts double-deck long labyrinth labyrinth structure, and the end play in labyrinth is adjustable.
8, the turbine classifier that is used for powder processing as claimed in claim 1 or 2, it is characterized in that: the diameter of described impeller is Φ 550mm or 750mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610023545XA CN100457297C (en) | 2006-01-23 | 2006-01-23 | Turbine classifier for processing powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610023545XA CN100457297C (en) | 2006-01-23 | 2006-01-23 | Turbine classifier for processing powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101007307A CN101007307A (en) | 2007-08-01 |
| CN100457297C true CN100457297C (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610023545XA Expired - Fee Related CN100457297C (en) | 2006-01-23 | 2006-01-23 | Turbine classifier for processing powder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274826B (en) * | 2011-05-06 | 2013-01-16 | 桂林恒达矿山机械有限公司 | Superfine turbine classifier |
| CN104689747B (en) * | 2013-12-10 | 2017-08-08 | 丹东东方测控技术股份有限公司 | Ultrasonic wave particle size analyzer stirs turbine apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004261B (en) * | 1984-10-13 | 1989-05-24 | 福德勤有限公司 | Wild joint |
| US5366095A (en) * | 1993-11-15 | 1994-11-22 | Christopher Martin | Air classification system |
| US5630557A (en) * | 1994-12-31 | 1997-05-20 | Omya Gmbh | Stirring bead mill with separator to strain out grinding beads |
| CN1038396C (en) * | 1994-10-06 | 1998-05-20 | 石油大学(北京) | Fluid-bed opposite-jetting superthin air flow crusher |
| CN2579522Y (en) * | 2002-09-04 | 2003-10-15 | 江永镜 | High speed wortex super fine crahsing self mill |
| CN2738901Y (en) * | 2004-10-15 | 2005-11-09 | 李恩华 | Powder nano axial-flow end directional blade type grading wheel |
-
2006
- 2006-01-23 CN CNB200610023545XA patent/CN100457297C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004261B (en) * | 1984-10-13 | 1989-05-24 | 福德勤有限公司 | Wild joint |
| US5366095A (en) * | 1993-11-15 | 1994-11-22 | Christopher Martin | Air classification system |
| CN1038396C (en) * | 1994-10-06 | 1998-05-20 | 石油大学(北京) | Fluid-bed opposite-jetting superthin air flow crusher |
| US5630557A (en) * | 1994-12-31 | 1997-05-20 | Omya Gmbh | Stirring bead mill with separator to strain out grinding beads |
| CN2579522Y (en) * | 2002-09-04 | 2003-10-15 | 江永镜 | High speed wortex super fine crahsing self mill |
| CN2738901Y (en) * | 2004-10-15 | 2005-11-09 | 李恩华 | Powder nano axial-flow end directional blade type grading wheel |
Non-Patent Citations (2)
| Title |
|---|
| 再论超细雷蒙磨的性能和效益. 吴学锋.中国非金属矿工业导刊，第31卷第1期. 2003 |
| 再论超细雷蒙磨的性能和效益. 吴学锋.中国非金属矿工业导刊，第31卷第1期. 2003 * |
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| CN101007307A (en) | 2007-08-01 |
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