CN101259467B - Powder separating machine for cement raw material, clinker and slag vertical type roller mill - Google Patents
Powder separating machine for cement raw material, clinker and slag vertical type roller mill Download PDFInfo
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- CN101259467B CN101259467B CN2008100496270A CN200810049627A CN101259467B CN 101259467 B CN101259467 B CN 101259467B CN 2008100496270 A CN2008100496270 A CN 2008100496270A CN 200810049627 A CN200810049627 A CN 200810049627A CN 101259467 B CN101259467 B CN 101259467B
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Abstract
The invention provides a powder concentrator of a vertical roller mill used for cement material, clinkers and slags. The main structure of the body of the powder concentrator consists of an upper part housing (9), a middle part housing (7), a lower part housing (3) and a feed downspouting (11) at the outside as well as a main shaft (10), a supporting rod 8 of the outer cylinder of the main shaft, a rotor (6), a lower prick ring (4) of the rotor and a thick grain material collecting prick (1) at the inside. The powder concentrator has the advantages of good dispersing effect, high grading rate and grading precision, wide grading granularity range, small device resistance, being easy to realize maximazation, compact structure, small machine body size, convenient manufacture and mounting, stable operation, small vane abrasion and high performance price ratio.
Description
Technical field
The invention belongs to the mining machinery technical field, refer more particularly to a kind of powder concentrator that is used for cement raw material, grog and slag vertical roller grinder.
Background technology
The finished product materials of vertical roll grinder is that the sorting through powder concentrator obtains, and is necessary that therefore the powder concentrator of studying with which kind of type could produce the most effective grading effect.
Make a general survey of the main structure parameters of successive dynasties powder concentrator; At first, the stator department guide vane needs a radially angle with respect to the powder concentrator center line, and the size of this angle is bigger to the influence of finished product Cut size; And this angle changes with the composition and the air velocity of material; Must could confirm through the test run of band material, and mostly present roller type vertical mill powder concentrator is that the stator angle is non-adjustable, has therefore influenced the long-time steady operation of system; Secondly, width was inconsistent before and after the slab construction of the guide vane of powder concentrator made overflow section at present, and the change of powder concentrator body resistance causes system fan to become big greatly, is unfavorable for macroscopical target of energy-saving consumption-reducing; The 3rd; Although it mainly is the centrifugal classification field of force that industry is at present gone up widely used; But varying of rotor shapes, graded region width and highly unreasonable etc. all can not form stable pressure reduction and stable air velocity at graded region; Therefore also all can't form the stable classification field of force, thereby can't become high-efficient powder concentrator truly.
Summary of the invention
For addressing the above problem; The present invention has designed a kind of powder concentrator that is used for cement raw material, grog and slag vertical roller grinder; It is good that this powder concentrator has a dispersion effect, and classification efficiency and effectiveness of classification height, partition size wide ranges, equipment resistance be little, be easy to advantages such as maximization.
For realizing the foregoing invention purpose, the present invention adopts following technical scheme:
The described powder concentrator that is used for cement raw material, grog and slag vertical roller grinder, its agent structure is made up of upper body, central enclosure, lower case and the charging chute of outside and the inner following awl circle of main shaft, main shaft urceolus strut, rotor, rotor, coarse-grained material collection cone; Wherein upper body is the hollow truncated cone shape structure of square top and round bottom, and the upper body lower flange is with Bolt Connection between the central enclosure upper flange; Central enclosure is hollow cylinder, and the central enclosure lower flange is with Bolt Connection between the lower case upper flange; Lower case is thin, the middle thick hollow truncated cone-shaped structure in two ends; Charging chute center line is in a certain angle with the powder concentrator longitudinal centre line; The charging chute is positioned at the lower case exterior portions and is hollow cylindrical structure, is positioned at lower case part and is half cylindrical structure; The lower case upper side is run through on its top, the bottom fits with the coarse-grained material collection cone; The charging chute deviates from powder concentrator center line one side and is provided with four air bubble blast pipes, and one of them blast pipe is positioned at outside, and other three blast pipes are positioned at enclosure interior; Main shaft top connects with the top housing; The main shaft bottom connects with central enclosure through four main shaft urceolus struts in a circumferential direction; The main shaft bottom is bored circle through Ifold flange down with rotor in the axial direction and is linked; Rotor is bored the radial connecting rod that encloses through horizontal direction and incline direction down and is linked with rotor; Rotor is formed cage structure by the vertical V shape rotor blade and the horizontal baffle that along the circumferential direction are uniformly distributed with, and rotor blade is welded by inboard rotor blade general steel plate and outside rotors blade clad steel plate; Have one to enclose the stator that along the circumferential direction is uniformly distributed with in rotor periphery; Stator is made up of with the guiding stator vane the stator axis guide plate around the stator axis adjustable angle; Wherein stator vane passes through bolt to the stator axis guide plate; The stator vane arranged tangential is on stator axis, and stator vane is the clad steel plate hard formation towards rotor-side; The stator upper end is with central enclosure lower flange and lower case upper flange Bolt Connection; The stator lower end puts together on the coarse-grained material collection cone through bolt; The open circles taper structure that the coarse-grained material collection cone is big up and small down, the coarse-grained material collection cone connects through eight collection cone arms with the lower case hypomere in peripheral sides.
Because adopt aforesaid technical scheme, the present invention has following superiority:
One, because material disperses to be in the strength feed status before main graded region, so powder concentrator is pre-dispersed effective;
Two,, make that winner's stepped zone flow field is stable, classification power is strong, classification is rapid, and classification efficiency is high, mill efficiency is high, the effectiveness of classification index is high because the ad hoc structure of rotor and stator;
Three, main shaft adopts the adjustable angle of frequency control motor driving and guide vane, make product fineness be easy to adjustment, and the adjustable fineness adjustable extent is big, can realize that product fineness is between 3～80 microns;
Four, higher gas flow and higher solid-gas ratio makes the processed in units amount of this powder concentrator big, equipment resistance is little;
Five, this powder concentrator also has compact conformation, body volume is little, manufacturing is easy for installation, running is steady, blade wear is little, cost performance is high, be easy to realize the characteristics that maximize.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is rotor of the present invention and stator partial enlarged drawing;
Among the above-mentioned figure: 1-coarse-grained material collection cone; 2-collection cone arm; The 3-lower case; The 4-rotor is the awl circle down; The 5-stator; The 6-rotor; The 7-central enclosure; 8-main shaft urceolus strut; The 9-upper body; The 10-main shaft; 11-charging chute; 12-rotor blade general steel plate; 13-rotor blade clad steel plate; The 14-stator vane; The 15-stator axis; 16-stator axis guide plate; The 17-bolt.
The specific embodiment
Can find out through Fig. 1,2: the powder concentrator that is used for cement raw material, grog and slag vertical roller grinder of the present invention, its agent structure descends awl circle 4, coarse-grained material collection cone 1 to form by upper body 9, central enclosure 7, lower case 3 and charging chute 11 and inner main shaft 10, main shaft urceolus strut 8, rotor 6, the rotor of outside; Wherein upper body 9 is the hollow truncated cone shape structure of square top and round bottom, and upper body 9 lower flanges are with Bolt Connection between central enclosure 7 upper flanges; Central enclosure 7 is hollow cylinder, and central enclosure 7 lower flanges are with Bolt Connection between lower case 3 upper flanges; Lower case 3 is thin, the middle thick hollow truncated cone-shaped structure in two ends; Charging chute 11 center lines are in a certain angle with the powder concentrator longitudinal centre line; Charging chute 11 is positioned at lower case 3 exterior portions and is hollow cylindrical structure, is positioned at lower case 3 part and is half cylindrical structure; Lower case 3 upper sides are run through on its top, the bottom fits with coarse-grained material collection cone 1; Charging chute 11 deviates from powder concentrator center line one side and is provided with four air bubble blast pipes, and one of them blast pipe is positioned at outside, and other three blast pipes are positioned at enclosure interior; Main shaft 10 tops connect with top housing 9; Main shaft 10 bottoms connect with central enclosure 7 through four main shaft urceolus struts 8 in a circumferential direction; Main shaft 10 bottoms are bored circle 4 through Ifold flange down with rotor in the axial direction and are linked; The rotor awl circle 4 radial connecting rods through horizontal direction and incline direction down links with rotor 6; Rotor 6 is formed cage structure by the vertical V shape rotor blade and the horizontal baffle that along the circumferential direction are uniformly distributed with, and rotor 6 blades are welded by inboard rotor blade general steel plate 12 and outside rotors blade clad steel plate 13; Outside rotor 6, be with the stator 5 that a circle along the circumferential direction is uniformly distributed with; Stator 5 is made up of with guiding stator vane 14 the stator axis guide plate 16 around the stator axis adjustable angle; Wherein stator vane 14 is fixed on the stator axis guide plate 16 through bolt 17; Stator vane 14 arranged tangential are on stator axis 15, and stator vane 14 is the clad steel plate hard formation towards rotor 6 sides; Stator 5 upper ends are with central enclosure 7 lower flanges and lower case 3 upper flange Bolt Connection; Stator 5 lower ends put together on the coarse-grained material collection cone 1 through bolt; The open circles taper structure that coarse-grained material collection cone 1 is big up and small down, coarse-grained material collection cone 1 connects through eight collection cone arms 2 with lower case 3 hypomeres in peripheral sides.
During work, the raw material of supplying with vertical roller grinder through charging chute 11 is fed into mill central authorities, and the pulverizing district between grinding roller and mill is squeezed and pulverizes; And under centrifugal action, overflow from the dish edge, the thermal current that is coiled the border feeding rises to the top, in this interval---at first carry out gravity classification in the auxilliary graded region; The concentric annular zone of entering rotor 6 outer rings of two phase flow stator 5 even action and stator 5 inner rings formation then---in the main graded region; In this zone, since the rectified action of rotor 6 blades and horizontal baffle, the local eddy currents that does not exist wall effect and dead angle to form in this stepped zone; And on any height of same radius; Inside and outside differential pressure is consistent all the time, thereby air velocity equates to have guaranteed that the suffered equilibrium relation of each power is constant that the classification field of force in the stepped zone is highly stable; According to airflow centrifugal power and equilibrium of forces entad, material carries out centrifugal classification; Coarse granule is dropped to coarse-grained material collection cone 1 owing to gravity is used as oversized particles there by centrifugal stator vane 14 terminals that are thrown to of cage rotor.Qualified finished particle then gets into rotor 6 inside and is collected by dust-precipitator by the air-out meal outlet discharge machine of upper body 9 is outer.
Claims (1)
1. powder concentrator that is used for cement raw material, grog and slag vertical roller grinder is characterized in that: form down by awl circle (4), coarse-grained material collection cone (1) by upper body (9), central enclosure (7), lower case (3) and the charging chute (11) of outside and inner main shaft (10), main shaft urceolus strut (8), rotor (6), rotor for its agent structure; Wherein upper body (9) is the hollow truncated cone shape structure of square top and round bottom, Bolt Connection between the same central enclosure of upper body (9) lower flange (7) upper flange; Central enclosure (7) is hollow cylinder, Bolt Connection between the same lower case of central enclosure (7) lower flange (3) upper flange; Lower case (3) is thin, the middle thick hollow truncated cone-shaped structure in two ends; Charging chute (11) center line is in a certain angle with the powder concentrator longitudinal centre line; Charging chute (11) is positioned at that lower case (3) exterior portions is hollow cylindrical structure, (3) part is half cylindrical structure to be positioned at lower case; Lower case (3) upper side is run through on its top, the bottom fits with coarse-grained material collection cone (1); Charging chute (11) deviates from powder concentrator center line one side and is provided with four air bubble blast pipes; One of them blast pipe is positioned at outside, and other three blast pipes are positioned at enclosure interior; Main shaft (10) top connects with top housing (9); Main shaft (10) bottom connects through the same central enclosure of four main shaft urceolus struts (8) (7) in a circumferential direction; Main shaft (10) bottom is bored circle (4) through Ifold flange down with rotor in the axial direction and is linked; Awl circle (4) links through the same rotor of radial connecting rod (6) of horizontal direction and incline direction under the rotor; Rotor (6) is formed cage structure by the vertical V shape rotor blade and the horizontal baffle that along the circumferential direction are uniformly distributed with, and rotor (6) blade is welded by inboard rotor blade general steel plate (12) and outside rotors blade clad steel plate (13); Outside rotor (6), be with the stator (5) that a circle along the circumferential direction is uniformly distributed with; Stator (5) is made up of stator axis guide plate (16) and guiding stator vane (14) around the stator axis adjustable angle; Wherein stator vane (14) is fixed on the stator axis guide plate (16) through bolt (17); Stator vane (14) arranged tangential is on stator axis (15), and stator vane (14) is the clad steel plate hard formation towards rotor (6) side; Stator (5) upper end same central enclosure (7) lower flange and lower case (3) upper flange Bolt Connection; Stator (5) lower end puts together on the coarse-grained material collection cone (1) through bolt; The open circles taper structure that coarse-grained material collection cone (1) is big up and small down, coarse-grained material collection cone (1) connects through eight collection cone arms (2) at the same lower case of peripheral sides (3) hypomere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100496270A CN101259467B (en) | 2008-04-25 | 2008-04-25 | Powder separating machine for cement raw material, clinker and slag vertical type roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100496270A CN101259467B (en) | 2008-04-25 | 2008-04-25 | Powder separating machine for cement raw material, clinker and slag vertical type roller mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101259467A CN101259467A (en) | 2008-09-10 |
| CN101259467B true CN101259467B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100496270A Expired - Fee Related CN101259467B (en) | 2008-04-25 | 2008-04-25 | Powder separating machine for cement raw material, clinker and slag vertical type roller mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN101259467B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974540B (en) * | 2012-12-17 | 2013-09-11 | 王新军 | Steel slag classifier |
| CN103028547B (en) * | 2012-12-25 | 2015-01-07 | Lv技术工程(天津)有限公司 | Splitting type rotor for powder concentrator and manufacturing process of splitting type rotor |
| CN104907252B (en) * | 2015-06-10 | 2017-01-11 | 洛阳矿山机械工程设计研究院有限责任公司 | Replacement method for rotor blades of powder concentrator |
| CN105435948A (en) * | 2015-12-18 | 2016-03-30 | 太仓井林机械科技有限公司 | Efficient slag powder separation mechanical device |
| CN105964542A (en) * | 2016-07-27 | 2016-09-28 | 无锡市华通电力设备有限公司 | Rotating wheel for fineness grader |
| CN109482487B (en) * | 2018-12-26 | 2023-08-04 | 保定中狼服饰材料有限公司 | Down feather processing screening device |
| CN112718484B (en) * | 2021-01-28 | 2022-02-11 | 中国新型建材设计研究院有限公司 | Combined efficient powder concentrator for steel slag micro powder and sorting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142759Y (en) * | 1992-11-24 | 1993-09-29 | 黄文熙 | High-efficiency energy-saving powder selector |
| CN2263554Y (en) * | 1996-05-21 | 1997-10-01 | 中国石油化工总公司 | Turbine powdery particle classificator |
| CN1300645A (en) * | 1999-12-21 | 2001-06-27 | 勒舍有限公司 | Separator of mill |
| EP1153661A1 (en) * | 2000-05-09 | 2001-11-14 | Loesche Gmbh | Mill separator |
-
2008
- 2008-04-25 CN CN2008100496270A patent/CN101259467B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142759Y (en) * | 1992-11-24 | 1993-09-29 | 黄文熙 | High-efficiency energy-saving powder selector |
| CN2263554Y (en) * | 1996-05-21 | 1997-10-01 | 中国石油化工总公司 | Turbine powdery particle classificator |
| CN1300645A (en) * | 1999-12-21 | 2001-06-27 | 勒舍有限公司 | Separator of mill |
| EP1153661A1 (en) * | 2000-05-09 | 2001-11-14 | Loesche Gmbh | Mill separator |
Non-Patent Citations (1)
| Title |
|---|
| 陈强等.O-Sepa选粉机的改造.《水泥》.2007,(第11期),62-63. * |
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| CN101259467A (en) | 2008-09-10 |
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Granted publication date: 20120125 Termination date: 20200425 |