WO2001045849A1 - Mühlensichter - Google Patents
Mühlensichter Download PDFInfo
- Publication number
- WO2001045849A1 WO2001045849A1 PCT/EP2000/004637 EP0004637W WO0145849A1 WO 2001045849 A1 WO2001045849 A1 WO 2001045849A1 EP 0004637 W EP0004637 W EP 0004637W WO 0145849 A1 WO0145849 A1 WO 0145849A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- guide
- classifier
- mill
- flow
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Definitions
- the invention relates to a mill classifier, in particular a roller mill classifier according to the preamble of claim 1.
- Roller mill classifiers which can be arranged in an integrated manner in a roller mill or in a roller mill, for example in an airflow mill, or can be placed thereon, can be designed as static or dynamic classifiers. Combinations of a static and a dynamic classifier are also known, which are then also referred to as high-effect classifiers.
- a high-effect classifier is described in ZKG, 46th year (1993), issue 8, pages 444 to 450, figure 7.
- the classifier has a cylindrical ledge rotor and a concentrically arranged guide flap ring.
- the most effective possible tangential flow is to be generated between the static guide apparatus and the strip rotor so that the coarse particles cannot reach the rotor.
- Disadvantages are an increased pressure loss and increasing wear of the guide flaps, especially with high particle concentrations.
- a mill classifier is known from EP 0 204 412 B1, which has two guide flap rings arranged one above the other.
- the guide flaps are arranged so as to be adjustable about vertical axes, the guide flaps of the guide flap rings having axes which are mounted independently of one another.
- a stationary ring is provided between the flapper rings and the adjusting devices are arranged at opposite ends of the flapper flaps.
- the cylindrical ledge or rod basket rotor used in the above-mentioned mill classifiers generally has a number of ledges which is at least twice as high as in the so-called standard classifiers, which is associated with relatively high production costs.
- the suspension and storage of a bar basket rotor also differs from the rotors of the standard classifier and contributes to the higher manufacturing and assembly costs.
- a well-known standard sifter is the Loesche rotary / basket sifter type LKS (ZKG, 46th year (1993) issue 8, p. 446, picture 5).
- This dynamic classifier is designed as a conical bar rotor and has a double cone rotor with screwed-on sight bars. The inclined rotor strips correspond to the inflow from below and lead to a weak deflection of the regrind fluid flow.
- a high-effect classifier is known from DE 44 23 815 C2, in which a double cone rotor of a Loesche centrifugal / basket classifier has been preceded by a static classifier.
- Part of the coarse material is separated by means of at least two guide flap rings axially one above the other and adjustable and a directed deflection of the regrind fluid flow before a dynamic induction is carried out by the downstream conical ledge rotor.
- the classifier has an improved selectivity and a lower energy consumption compared to the standard classifiers, but does not always meet the constantly increasing requirements for efficiency and the lowest possible production and maintenance costs.
- the invention is based on the object of creating a mill classifier, in particular a roller mill classifier, which, with a particularly simple construction, has extraordinarily low production costs and at the same time enables great flexibility and optimization of the vision processes.
- a basic idea of the invention can be seen in maintaining the advantages of a strip rotor of a Loesche gyro / basket sifter and in achieving a purely dynamic screening with the aid of at least one guide flap ring, the guide flaps and the rotor strips being designed and aligned with one another in such a way that the regrind particles are not forced into an orbit outside the ingot rotor, but are conveyed into the ingot rotor.
- the guide flaps have such a shape and positioning that no so-called cyclone flow occurs, but rather a regrind-fluid mixture is immediately and dynamically sighted without an upstream static sight stage.
- a roller mill classifier is provided with a slatted rotor of basically known design and a guide flap ring arranged concentrically around the slatted rotor with flow-optimized guide flaps which are adjustable about a vertical axis of rotation and a flow of regrind fluid from the mill to a tangential to radial inflow force the rotor strips of the strip rotor.
- rotor strips are preferably used, as are known from the LKS classifiers, but are arranged at least vertically in the region of the guide flaps and thus parallel to the guide flaps.
- a double-cone rotor in particular a Loesche centrifugal / basket classifier of the LKS type, as a strip rotor and to convert it in such a way that the known rotor strips are retained, but perpendicular to a cylindrical rotor area and are no longer arranged at an angle.
- the rotor strips have a radial dimensioning as in an LKS classifier, the number of rotor strips can be significantly reduced compared to the cylindrical rod-basket rotors of the high-effect classifiers. It was found that the number of bars can be about a third of the number of bars of a rod basket sifter and a maximum of 50%.
- a sharp separation without an upstream static sighting can be achieved by at least one guide flap ring with flow-optimized guide flaps, which have a rounded leading edge and at least one guide plate and which are positioned in relation to the ledge rotor in such a way that an imaginary extension of the guide plates does not pass the ledge rotor, but at least leads tangentially to the outer edges of the rotor strips or radially into the rotor center.
- Guide flaps with a rounded leading edge and at least one guide plate arranged thereon are particularly advantageous such that parallel or widening flow channels are formed between two guide flaps and the inflow and outflow are approximately the same.
- Inexpensive production, assembly and simple adjustment of the flow-optimized guide flaps can be achieved if a cylindrical or tubular inflow body, for example an inflow pipe, is used as the rounded leading edge, on which the guide plate is arranged tangentially, for example welded on. It is also possible to indirectly, for example via a to attach additional mounting plate to the inflow pipe. While the fastening plate, which can be kept relatively narrow, can be fixed directly to the inflow pipe, the guide plate can be detachably fastened, for example screwed, to the fastening plate. If the guide plate is worn, a relatively quick, inexpensive replacement is possible in this way.
- the inflow tube is expediently circular-cylindrical and made of an abrasion-resistant material, and the axis of rotation of the guide flaps is formed by the longitudinal axis of the inflow tube.
- Streamlined flaps are particularly advantageous for flow channels with a diffuser effect.
- These can be formed, for example, by two guide plates which are attached tangentially to the inflow body or inflow tube.
- the two baffles are essentially identical and are in contact with one another with rotor-side edge regions, i.e. run out pointed.
- the second plate can also be narrower than the guide plate, which faces the flow of material to be viewed, and can be attached to the inflow body at a different angle of attack than the guide plate facing the flow of material to be viewed, in order to bring about an opening flow channel with a diffuser effect.
- a sharp separation with a ledge rotor and at least one guide flap ring can be achieved which have an equal number of rotor strips or guide flaps.
- the rotor strips can be Z-shaped.
- the heights of the guide flaps and the rotor strips are coordinated.
- the cylindrical rotor area above a conical rotor area must be dimensioned such that the vertical rotor bars of the cylindrical rotor area have approximately the same height as the concentrically arranged guide flaps of the guide valve ring .
- the conical rotor area can advantageously be covered by a cover, e.g. a cover cone, which is arranged between the cylindrical and conical rotor area, are rendered ineffective in terms of flow. Since the ledge rotor with its conical rotor area already works within the semolina return cone, it is not necessary to cover this area or the conical ledge ends in the form of a jacket.
- the rotor strips of the strip rotor are expediently used trained at the LKS, but also the classifier housing, at least the upper part of the classifier housing, the bearing cartridge and also the drive and the drive shaft can be designed as in a Loesche gyro / basket classifier. It is advantageous that the lower cone of the double-cone rotor is omitted and the drive shaft can be made shorter.
- the classifier housing known from the LKS classifier can in principle be adopted, but the space for the ascending regrind fluid flow is narrowed above the height of the guide flap ring, whereby the particle flow is accelerated into the flow channels of the guide valve ring.
- the mill classifier according to the invention makes it possible to feed the entire regrind particles from fine material to coarse material to the ingot rotor for a purely dynamic screening.
- This particle stream is thrown into the fluid flow after passing the grinding gap between the grinding rollers and the grinding path, flows upwards as a grinding fluid flow at the periphery of the grinding bowl and is transported through the guide flap ring into the ingot rotor without prior separation of coarse particles.
- the ledge rotor separates the coarse particles from the total particle flow by centrifugal force separation, in that the coarse particles are thrown by the ledge rotor against the guide flap ends, where they fall into the semolina return cone due to gravity as oversize particles.
- rod basket classifier of a high-effect classifier instead of a converted rotor of a Loesche centrifugal / basket classifier and to provide it with concentrically arranged, flow-optimized guide flaps according to the present invention.
- mill classifier according to the invention is relatively low manufacturing, assembly and storage costs due to the possible retrofitting of an LKS.
- the possible retrofitting of an LKS can quickly and easily meet corresponding customer requirements for a sharp, inexpensive mill classifier.
- FIG. 1 shows a mill classifier according to the invention with a guide flap ring
- FIG. 2 shows a second variant of a mill classifier according to the invention with a guide flap ring
- FIG. 3 shows a detail of a ledge rotor and enlarged guide vanes of a guide valve ring
- Fig. 4 shows a second variant of guide flaps
- FIG. 5 shows a highly schematic illustration of guide flaps and rotor strips of a strip rotor according to FIGS. 1 and 2.
- a mill classifier shown in FIG. 1 and FIG. 2 is a roller mill classifier 2, which can be placed on a roller mill.
- the roller mill is indicated by grinding rollers 37 and a grinding track 39.
- the roller mill sifter 2 has in a sifter housing 23 with an upper part 25 a dynamic sifter part 6 and a static guide flap ring 4 for an upward flowing material-fluid mixture 3.
- the feed material to be ground is fed via a feed tube 30, which is arranged on the side of the classifier housing 23 and extends almost up to a discharge opening 33 of a semolina cone 31, so that the feed material together with the semolina or coarse material particles 32 rejected by the dynamic classifier part 6 rotating grinding table 39 and grinding rollers 37 is supplied.
- a dynamic rotor section 6 with a cylindrical rotor area 8 and a conical rotor area 18 is used as the dynamic separator part 6, which in terms of number and design, in particular in relation to the radial width of the rotor bars 7, and in relation to a bearing cartridge 24, an overlying drive, not shown, and a drive shaft 26 essentially corresponds to a double cone rotor of a Loesche centrifugal / basket sifter.
- the conical rotor region 18 is rendered ineffective by a blind, which is formed by a cover cone 28 in connection with the semolina cone 31.
- the inclined visible strips of the conical rotor area 18 ensure the mechanical connection to the double-cone rotor 35.
- the sifter housing 23 and the upper part 25 of the sifter housing 23 were in principle taken over from the Loesche centrifugal / basket sifter, a standard sifter, but the sifter housing 23 tapers or narrows upward in the region of the cylindrical rotor region 8 and a "retracted""Housing shape 38 results.
- the mill sifter 2 shown in FIG. 2 corresponds to the sifter housing 23 except for the retracted housing shape 38 and with respect to the sifter housing upper part 25, the bearing cartridge 24, drive shaft 26 and in the form and radial expansion of the rotor strips 7 also the known aforementioned LKS standard sifter
- it does not have a conical red area 18, but only a cylindrical rotor area 8 with vertical rotor strips 7 in the narrowing housing 38.
- a double cone 35, as in the mill classifier 2 according to FIG. 1, is no longer present.
- Corresponding features of the mill classifier 2 according to FIGS. 1 and 2 are provided with identical reference numerals.
- the guide flap ring 4 of the mill classifier 2 in FIGS. 1 and 2 is provided with flow-optimized guide flaps 5 which can be adjusted about a vertical axis of rotation 9 (see FIGS. 3 to 5).
- the guide flaps 5 are designed and arranged in such a way that in a viewing space 20 between the strip rotor 16 and the guide flap ring 4 does not have a centrifugal flow, but a tangential flow up to the radial flow against the ledge rotor 16 (see FIGS. 3 and 5).
- Flow-optimized guide flaps 5 of the guide flap ring 4 are shown by way of example in FIGS. 3 to 5.
- the guide flaps 5, shown enlarged in comparison to the rotor strips 7, are provided with a rounded leading edge 10 and a guide plate 11, which is attached directly and tangentially to the rounded leading edge 10.
- Such baffles 5 are shown in FIG. 3 as lower baffles, while the two upper baffles 5 are of streamlined design and, in addition to the baffle plate 11 which faces the ground material / fluid mixture 3 or the sighted material flow, also have a plate 12.
- the sheet 12, which faces away from the flow of material to be viewed, is also attached tangentially to the rounded leading edge 10, which is advantageously a circular inflow pipe.
- the second plate 12 can be attached to the leading edge 10 with a different angle of attack than the guide plate 11.
- Baffle plate 11 and plate 12 of the two upper streamlined guide flaps 5 of FIG. 3 are largely identical and are in contact with one another with edge regions 21, 22 on the rotor side and thus run out “pointed”.
- streamlined flaps 5 are not limited to this variant.
- FIG. 4 shows alternatively designed guide flaps 5 with an inflow pipe 10, a vertical axis of rotation 9 on the longitudinal axis of the inflow pipe 10, with a guide plate 11 and a plate 12.
- the guide plate 11 is not directly on the Inflow pipe 10, but releasably attached to this via an additional fastening plate 17.
- Both the guide plate 11 and the inflow pipe 10 are expediently made of an abrasion-resistant material or at least partially have an abrasion-resistant coating and / or surface structure.
- the plate 12 and / or the additional fastening plate 17 can also be designed to be resistant to abrasion.
- angles of attack of the indirectly attached guide plate 11 and / or of the plate 12 can be chosen to be the same or different, as a result of which either parallel or widening flow channels 13 are formed and a sighting according to the respective requirements can be achieved.
- FIG. 5 two rotor strips 7 of a strip rotor 16 are shown as an example.
- the rotor strips 7 are basically Z-shaped, but have a rounded leg 27 at their end facing the guide flap ring 4, which leads to a lower resistance and a higher bending stiffness.
- the guide flaps 5 shown in FIG. 5 also have an inflow pipe as a rounded leading edge 10, the vertical axis of which forms the axis of rotation 9 of the guide flaps 5.
- the guide flaps 5 are provided with a guide plate 11 which is held on the inflow pipe 10 indirectly, namely via fastening devices, for example fastening plates 17. While the mounting plates 17 shown in FIG. 4 are angled, flat mounting plates 17 are used for the guide flaps 5 according to FIG. 5, which are attached tangentially to the inflow pipe 10, for example welded on.
- FIGS. 3 and 5 the guide flaps 5 are set at an angle of approximately 60, so that the radially aligned rotor strips 7 are flowed in and the coarse material particles 32 are rejected while the fine material particles enter the strip rotor 16.
- FIG. 5 it is shown on the lower guide flap 5 that the coarse material particles 32 are thrown from the Z-shaped rotor strips 7 in the direction of the guide flap 5 and fall down into the semolina cone 31 in this flow-minimized area (see FIGS. 1 and 2).
- FIG. 3 and in particular FIG. 5 also illustrate the formation of approximately parallel flow channels 13 with approximately the same inflow 14 and outflow 15 due to the flow-optimized guide flaps 5 with guide plates 11 and an inflow body 10.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Pulverization Processes (AREA)
- Seasonings (AREA)
- Cyclones (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Fats And Perfumes (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50009307T DE50009307D1 (de) | 1999-12-21 | 2000-05-22 | Mühlensichter |
JP2001546785A JP3836028B2 (ja) | 1999-12-21 | 2000-05-22 | ローラミル分級機 |
DK00927230T DK1239966T3 (da) | 1999-12-21 | 2000-05-22 | Formalingsseparator |
AT00927230T ATE287295T1 (de) | 1999-12-21 | 2000-05-22 | Mühlensichter |
US10/168,845 US6827221B1 (en) | 1999-12-21 | 2000-05-22 | Mill classifier |
EP00927230A EP1239966B1 (de) | 1999-12-21 | 2000-05-22 | Mühlensichter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19961837A DE19961837A1 (de) | 1999-12-21 | 1999-12-21 | Mühlensichter |
DE19961837.2 | 1999-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001045849A1 true WO2001045849A1 (de) | 2001-06-28 |
Family
ID=7933686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004637 WO2001045849A1 (de) | 1999-12-21 | 2000-05-22 | Mühlensichter |
Country Status (10)
Country | Link |
---|---|
US (1) | US6827221B1 (de) |
EP (1) | EP1239966B1 (de) |
JP (1) | JP3836028B2 (de) |
CN (1) | CN1204972C (de) |
AT (1) | ATE287295T1 (de) |
DE (2) | DE19961837A1 (de) |
DK (1) | DK1239966T3 (de) |
ES (1) | ES2235871T3 (de) |
WO (1) | WO2001045849A1 (de) |
ZA (1) | ZA200205044B (de) |
Cited By (3)
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GB2484333A (en) * | 2010-10-07 | 2012-04-11 | William Graham Bell | Method of converting the body of a grinding mill |
CN106583018A (zh) * | 2016-12-16 | 2017-04-26 | 大唐东北电力试验研究所有限公司 | 中速磨煤机一次风粉选择性分配器 |
CN115888960A (zh) * | 2022-12-26 | 2023-04-04 | 中国科学院上海高等研究院 | 一种直吹式制粉装置及其使用方法 |
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DE10022536A1 (de) | 2000-05-09 | 2001-11-29 | Loesche Gmbh | Mühlensichter |
US7156235B2 (en) * | 2004-02-26 | 2007-01-02 | Foster Wheeler Energy Corporation | Apparatus for and method of classifying particles discharged from a vertical mill |
WO2008009019A1 (en) * | 2006-07-14 | 2008-01-17 | University Of Florida Research Foundation, Inc. | Rotating cone classifier |
EP2014346A1 (de) * | 2007-07-03 | 2009-01-14 | Evodos B.V. | Trennvorrichtung |
JP4785802B2 (ja) * | 2007-07-31 | 2011-10-05 | 株式会社日清製粉グループ本社 | 粉体分級装置 |
TWI483787B (zh) * | 2007-09-27 | 2015-05-11 | Mitsubishi Hitachi Power Sys | A grading device and an upright pulverizing device having the classifying device and a coal fired boiler device |
CN101259467B (zh) * | 2008-04-25 | 2012-01-25 | 中信重工机械股份有限公司 | 一种用于水泥原料、熟料及矿渣立式辊磨的选粉机 |
DE102008038776B4 (de) | 2008-08-12 | 2016-07-07 | Loesche Gmbh | Verfahren zur Sichtung eines Mahlgut-Fluid-Gemisches und Mühlensichter |
US20110308437A1 (en) * | 2010-06-18 | 2011-12-22 | William Latta | External pulverized coal classifier |
DE102011014592A1 (de) | 2011-03-21 | 2012-09-27 | Loesche Gmbh | Wälzmühle |
US8813967B2 (en) * | 2012-05-02 | 2014-08-26 | Alstom Technology Ltd | Adjustable mill classifier |
CN103521426A (zh) * | 2012-08-02 | 2014-01-22 | 洛阳超拓实业有限公司 | 一种减少磨机产品中铁屑含量的方法 |
CN103846126B (zh) * | 2012-11-30 | 2016-03-30 | 黄立娜 | 档板自动调节高效串联双轴向动态分选、回粉碾磨装置 |
WO2014117031A1 (en) * | 2013-01-24 | 2014-07-31 | Lp Amina Llc | Classifier |
DE102013101517A1 (de) * | 2013-02-15 | 2014-08-21 | Thyssenkrupp Resource Technologies Gmbh | Sichter und Verfahren zum Betreiben eines Sichters |
US9981290B2 (en) * | 2013-09-09 | 2018-05-29 | Coal Milling Projects (Pty) Limited | Static classifier |
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CN104353613A (zh) * | 2014-11-04 | 2015-02-18 | 杭州能云科技有限公司 | 一种选粉机层流装置 |
CN105642406B (zh) * | 2015-12-30 | 2018-04-24 | 溧阳中材重型机器有限公司 | 一种用于立磨机的导风组件及导风装置 |
CN107096609A (zh) * | 2016-02-22 | 2017-08-29 | 桂林桂强机械有限公司 | 一种直入喂料式磨粉机 |
DE102016106588B4 (de) | 2016-04-11 | 2023-12-14 | Neuman & Esser Process Technology Gmbh | Sichter |
DE102016121927B3 (de) | 2016-11-15 | 2018-01-18 | Neuman & Esser Gmbh Mahl- Und Sichtsysteme | Sichter und Mühle mit einem Sichter |
DE102016121925A1 (de) | 2016-11-15 | 2018-05-17 | Neuman & Esser Gmbh Mahl- Und Sichtsysteme | Sichter, Mühle und Verfahren zum Sichten eines Gas-Feststoff-Gemischs |
US10744534B2 (en) | 2016-12-02 | 2020-08-18 | General Electric Technology Gmbh | Classifier and method for separating particles |
CN107051706A (zh) * | 2017-06-20 | 2017-08-18 | 华北电力大学(保定) | 一种动静结合的中速磨煤机 |
CN107471490B (zh) * | 2017-08-20 | 2019-04-12 | 南京金腾橡塑有限公司 | 一种制备废旧轮胎精细橡胶粉生产线的使用方法 |
JP6982467B2 (ja) * | 2017-10-27 | 2021-12-17 | ホソカワミクロン株式会社 | 粉体処理装置 |
DE102019200191A1 (de) * | 2018-06-08 | 2019-12-12 | Sms Group Gmbh | Trockenaufbereitung von Kaolin bei der Herstellung von HPA |
CN109482487B (zh) * | 2018-12-26 | 2023-08-04 | 保定中狼服饰材料有限公司 | 一种羽绒加工筛分装置 |
CN113695051B (zh) * | 2021-08-27 | 2022-08-23 | 范旭辉 | 一种高水份工业尾矿渣固废的碎磨烘干生产系统 |
CN114029128B (zh) * | 2021-11-08 | 2023-01-31 | 矿冶科技集团有限公司 | 一种石墨矿碎磨浮选一体化设备及方法 |
CN114160268A (zh) * | 2021-12-16 | 2022-03-11 | 北京康盛宏达科技有限公司 | 多功能辊式立磨机 |
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EP0204412A2 (de) | 1985-06-03 | 1986-12-10 | F.L. Smidth & Co. A/S | Sichter zum Sortieren von Materialpartikeln |
DE3808023A1 (de) * | 1988-03-10 | 1989-09-21 | Krupp Polysius Ag | Sichter |
FR2642994A1 (fr) * | 1989-02-14 | 1990-08-17 | Fives Cail Babcock | Selecteur a air a action centrifuge |
DE4329662A1 (de) * | 1993-09-02 | 1995-03-09 | Krupp Polysius Ag | Leitschaufelkranz und Sichter |
DE4423815C2 (de) | 1994-07-06 | 1996-09-26 | Loesche Gmbh | Mühlensichter |
US5624039A (en) * | 1993-04-27 | 1997-04-29 | F. L. Smidth & Co. A/S | Separator for sorting of particular material |
-
1999
- 1999-12-21 DE DE19961837A patent/DE19961837A1/de not_active Withdrawn
-
2000
- 2000-05-22 JP JP2001546785A patent/JP3836028B2/ja not_active Expired - Fee Related
- 2000-05-22 DE DE50009307T patent/DE50009307D1/de not_active Expired - Lifetime
- 2000-05-22 WO PCT/EP2000/004637 patent/WO2001045849A1/de active IP Right Grant
- 2000-05-22 US US10/168,845 patent/US6827221B1/en not_active Expired - Fee Related
- 2000-05-22 ES ES00927230T patent/ES2235871T3/es not_active Expired - Lifetime
- 2000-05-22 AT AT00927230T patent/ATE287295T1/de active
- 2000-05-22 EP EP00927230A patent/EP1239966B1/de not_active Expired - Lifetime
- 2000-05-22 DK DK00927230T patent/DK1239966T3/da active
- 2000-12-21 CN CNB001364758A patent/CN1204972C/zh not_active Expired - Fee Related
-
2002
- 2002-06-24 ZA ZA200205044A patent/ZA200205044B/en unknown
Patent Citations (6)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2484333A (en) * | 2010-10-07 | 2012-04-11 | William Graham Bell | Method of converting the body of a grinding mill |
CN106583018A (zh) * | 2016-12-16 | 2017-04-26 | 大唐东北电力试验研究所有限公司 | 中速磨煤机一次风粉选择性分配器 |
CN106583018B (zh) * | 2016-12-16 | 2019-04-16 | 大唐东北电力试验研究院有限公司 | 中速磨煤机一次风粉选择性分配器 |
CN115888960A (zh) * | 2022-12-26 | 2023-04-04 | 中国科学院上海高等研究院 | 一种直吹式制粉装置及其使用方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1300645A (zh) | 2001-06-27 |
EP1239966B1 (de) | 2005-01-19 |
JP3836028B2 (ja) | 2006-10-18 |
DE19961837A1 (de) | 2001-06-28 |
ES2235871T3 (es) | 2005-07-16 |
US6827221B1 (en) | 2004-12-07 |
CN1204972C (zh) | 2005-06-08 |
ZA200205044B (en) | 2002-12-17 |
EP1239966A1 (de) | 2002-09-18 |
ATE287295T1 (de) | 2005-02-15 |
JP2003517927A (ja) | 2003-06-03 |
DK1239966T3 (da) | 2005-05-30 |
DE50009307D1 (de) | 2005-02-24 |
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