CN101259467A - Powder separating machine for cement raw material, chamotte and mineral waste residue vertical type roller mill - Google Patents

Powder separating machine for cement raw material, chamotte and mineral waste residue vertical type roller mill Download PDF

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Publication number
CN101259467A
CN101259467A CNA2008100496270A CN200810049627A CN101259467A CN 101259467 A CN101259467 A CN 101259467A CN A2008100496270 A CNA2008100496270 A CN A2008100496270A CN 200810049627 A CN200810049627 A CN 200810049627A CN 101259467 A CN101259467 A CN 101259467A
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CN
China
Prior art keywords
rotor
stator
main shaft
lower case
powder concentrator
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Granted
Application number
CNA2008100496270A
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Chinese (zh)
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CN101259467B (en
Inventor
张廷龙
张路明
黄敏
马颖
吴晓红
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CITIC Heavy Industries Co Ltd
Luoyang Mining Machinery and Engineering Design Institute Co Ltd
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CITIC Heavy Industries Co Ltd
Luoyang Mining Machinery and Engineering Design Institute Co Ltd
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Application filed by CITIC Heavy Industries Co Ltd, Luoyang Mining Machinery and Engineering Design Institute Co Ltd filed Critical CITIC Heavy Industries Co Ltd
Priority to CN2008100496270A priority Critical patent/CN101259467B/en
Publication of CN101259467A publication Critical patent/CN101259467A/en
Application granted granted Critical
Publication of CN101259467B publication Critical patent/CN101259467B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of powder concentrator that is used for cement raw material, grog and slag vertical roller grinder
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 by powder concentrator obtains, and therefore is necessary that 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, 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 determine by 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 at present industrial widely used mainly be the centrifugal classification field of force, 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 achieving the above object, 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 outer body 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, be provided with four air bubble blast pipes deviating from powder concentrator center line one side, one of them blast pipe is positioned at hull 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 by four main shaft urceolus struts in a circumferential direction, the main shaft bottom is bored circle by Ifold flange down with rotor in the axial direction and is linked, rotor is bored the radial connecting rod that encloses by horizontal direction and incline direction down and is linked with rotor, rotor is formed cage structure by along the circumferential direction uniform vertical V shape rotor blade and horizontal baffle, and rotor blade is welded by inboard rotor blade general steel plate and outside rotors blade clad steel plate; In rotor periphery the along the circumferential direction uniform stator of one circle is arranged, stator is made up of stator axis guide plate and guiding stator vane around the stator axis adjustable angle, wherein stator vane by bolting 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 by 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 by 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, because the ad hoc structure of rotor and stator, make that winner's stepped zone flow field is stable, classification power is strong, classification is rapid, and classification efficiency height, mill efficiency height, effectiveness of classification index height;
Three, main shaft adopts the adjustable angle of frequency control motor driving and guide vane, make that product fineness is easy to adjust, 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 by 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 is made up of upper body 9, central enclosure 7, lower case 3 and the charging chute 11 of outside and the inner following awl circle 4 of main shaft 10, main shaft urceolus strut 8, rotor 6, rotor, coarse-grained material collection cone 1; 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 the outer part of lower case 3 and is hollow cylindrical structure, is positioned at lower case 3 and partly 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, be provided with four air bubble blast pipes deviating from powder concentrator center line one side, one of them blast pipe is positioned at hull 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 by four main shaft urceolus struts 8 in a circumferential direction, main shaft 10 bottoms are bored circle 4 by Ifold flange down with rotor in the axial direction and are linked, the rotor awl circle 4 radial connecting rods by horizontal direction and incline direction down links with rotor 6, rotor 6 is formed cage structure by along the circumferential direction uniform vertical V shape rotor blade and horizontal baffle, 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 along the circumferential direction uniform stator 5 of a circle, 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 by 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 by 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 by eight collection cone arms 2 with lower case 3 hypomeres in peripheral sides.
During work, the raw material of supplying with vertical roller grinder by charging chute 11 is fed into mill central authorities, 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 fed by the dish border rises to the top, in this interval---at first carry out gravity classification in the auxilliary graded region, then two phase flow stator 5 even action enter the concentric annular zone that rotor 6 outer rings and stator 5 inner rings form---in the main graded region, in this zone, because 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, the classification field of force in the stepped zone is highly stable, and 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 enters 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, a kind of powder concentrator that is used for cement raw material, grog and slag vertical roller grinder is characterized in that: its agent structure is made up of upper body 9, central enclosure 7, lower case 3 and the charging chute 11 of outside and the inner following awl circle 4 of main shaft 10, main shaft urceolus strut 8, rotor 6, rotor, coarse-grained material collection cone 1; 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 the outer part of lower case 3 and is hollow cylindrical structure, is positioned at lower case 3 and partly 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, be provided with four air bubble blast pipes deviating from powder concentrator center line one side, one of them blast pipe is positioned at hull 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 by four main shaft urceolus struts 8 in a circumferential direction, main shaft 10 bottoms are bored circle 4 by Ifold flange down with rotor in the axial direction and are linked, the rotor awl circle 4 radial connecting rods by horizontal direction and incline direction down links with rotor 6, rotor 6 is formed cage structure by along the circumferential direction uniform vertical V shape rotor blade and horizontal baffle, 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 along the circumferential direction uniform stator 5 of a circle, 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 by 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 by 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 by eight collection cone arms 2 with lower case 3 hypomeres in peripheral sides.
CN2008100496270A 2008-04-25 2008-04-25 Powder separating machine for cement raw material, clinker and slag vertical type roller mill Expired - Fee Related CN101259467B (en)

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

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CN101259467A true CN101259467A (en) 2008-09-10
CN101259467B CN101259467B (en) 2012-01-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974540A (en) * 2012-12-17 2013-03-20 王新军 Steel slag classifier
CN103028547A (en) * 2012-12-25 2013-04-10 Lv技术工程(天津)有限公司 Splitting type rotor for powder concentrator and manufacturing process of splitting type rotor
CN104907252A (en) * 2015-06-10 2015-09-16 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
CN109482487A (en) * 2018-12-26 2019-03-19 张润成 A kind of Eider down processing screening plant
CN112718484A (en) * 2021-01-28 2021-04-30 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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
DE19961837A1 (en) * 1999-12-21 2001-06-28 Loesche Gmbh Sifter mill, and especially rolling sifter mill, has guide vanes with flow-optimized form, and has vaned rotor in dynamic sieve section cylindrically constructed and has cylindrical rotor section with perpendicularly disposed vanes
DE10022536A1 (en) * 2000-05-09 2001-11-29 Loesche Gmbh Mill classifier

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974540A (en) * 2012-12-17 2013-03-20 王新军 Steel slag classifier
CN102974540B (en) * 2012-12-17 2013-09-11 王新军 Steel slag classifier
CN103028547A (en) * 2012-12-25 2013-04-10 Lv技术工程(天津)有限公司 Splitting type rotor for powder concentrator and manufacturing process of splitting type rotor
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
CN104907252A (en) * 2015-06-10 2015-09-16 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
CN109482487A (en) * 2018-12-26 2019-03-19 张润成 A kind of Eider down processing screening plant
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
CN112718484A (en) * 2021-01-28 2021-04-30 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

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