EP2106301A2 - Dispositif de tamisage destiné à tamiser des produits granuleux et installation de broyage en circuit fermé à laquelle est raccordé un te dispositif de tamisage - Google Patents

Dispositif de tamisage destiné à tamiser des produits granuleux et installation de broyage en circuit fermé à laquelle est raccordé un te dispositif de tamisage

Info

Publication number
EP2106301A2
EP2106301A2 EP07801812A EP07801812A EP2106301A2 EP 2106301 A2 EP2106301 A2 EP 2106301A2 EP 07801812 A EP07801812 A EP 07801812A EP 07801812 A EP07801812 A EP 07801812A EP 2106301 A2 EP2106301 A2 EP 2106301A2
Authority
EP
European Patent Office
Prior art keywords
classifier
classifying
mill
sifter
static
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07801812A
Other languages
German (de)
English (en)
Other versions
EP2106301B1 (fr
Inventor
Siegfried Strasse
Albert Süsseger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP2106301A2 publication Critical patent/EP2106301A2/fr
Application granted granted Critical
Publication of EP2106301B1 publication Critical patent/EP2106301B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
    • 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
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • 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
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents

Definitions

  • the invention relates to a sifting device for sifting granular material, with a arranged within a classifier static cascade classifier as beware, the sicht Kunststoffströ- mung side optionally another sifter is connected as a Nachsichter, with inlets and outlets for conveyluft, reformgut, fines and coarse material.
  • a classifying device in which a static cascade classifier without moving components and a dynamic rod basket classifier with a rotating rod basket are assembled to form a compact structural unit within a classifier housing.
  • the classifying device is switched on in a grinding circuit with a bed comminution roller mill or roller press.
  • the circulated material which contains Gutagglomerate as pressing slugs, is introduced at the top of the acting as a custodial cascade classifier.
  • the good agglomerates are dissolved and the visible air flowing transversely to the falling crop curtain through the staircase cascade the fine grain or middle fraction, while the coarse grain fraction is recirculated to the roll press so that the bar cage classifier downstream of the postharvester is no longer burdened with coarse grain components with its rotating turbo elements.
  • the fine grain fraction is using of the digestion leaving the classifying air stream discharged from the grinding circuit.
  • DE-AS 1 607 536 discloses an air stream separator arranged above the grinding bowl of a roller mill, with a set of static conical rings arranged one above the other and concentric to one another, to which the feed material is not introduced from above and separated from the classifying air, but rather In this case, the feedstock to be viewed must already be introduced into the annealing air from below into the annulus between the classifier housing and the conical rings, in the flow through which and flow deflection the withdrawgutsuspension undergoes a Grobgutvo- decision, while the fine grain fraction contained in the suspension via a centrally in the Sifter rotating rod basket and is withdrawn via an induced draft fan.
  • the invention has for its object to provide a compact built sifter of the type mentioned and a Kreislaufmahlstrom with such a sifting device, which hin- Clearly throughput but also with regard to specific energy requirements can overcome previous limits.
  • the classifying device is round in plan view, namely it consists of two packets each one above the other and concentric circular or polygonal conical rings, namely a radially outer stepping ring package and a radially inner visual flooding -Ringmon. Between the radially outer and the radially inner ring packet the viewing zone is formed, which has the shape of a conical-cone stump in circular conical rings, in such a way that the large diameter of the viewing zone at the top and the small diameter of the viewing zone at the bottom of the ring pacts.
  • a bleed-off preventer the view air loaded with the fine material be arranged.
  • the classifying air itself is introduced into the classifier housing via one or more circumferentially distributed supply ports, travels radially to tangentially from outside to inside the conical ring packets and the classifying zone, and is then withdrawn laden with the fines from the integrated downstream trimmers.
  • the incorporated indulgent can be a static air classifier.
  • the obdurator can also be a dynamic rod basket sifter with a rod axis rotatable about a vertical axis with distributed over the rotor circumference arranged turbo elements.
  • the coarse grain fraction discharge opening of the sifter is advantageously arranged above the crop feed of the mill.
  • the mill itself can be a high-pressure roller press for comminuted bedding with mechanical promotion of the press sleeves to the reformguteintragsö Maschinenen the static cascade classifier.
  • the mill may also be a roller mill or roller mill or another mill with promotion of the coarse grain fraction leaving the mill to the reformguteintragsö Samuelen the static cascade classifier.
  • the static cascade screen part first of all has the advantage that there are good agglomerates coming out of the mill, such as, for example.
  • B. pressing slugs can exploit the use of gravity virtually without energy supply desagglo- merge before the actual sighting begins.
  • the height of the conical ring packages of the static classifying element is at least 5 m.
  • the conical ring construction of the static classifier part in such a way that the diameter of the conical rings at the top of the ring packages with the sighting-in openings distributed around the circumference is significantly greater than the corresponding diameter at the bottom of the conical ring packages makes it possible to achieve much higher throughput rates the sizing device according to the invention opened without this would require an increased energy input into the static cascade classifier. This also results in the low specific energy requirement of the classifying device according to the invention and the cycle grinding plant equipped therewith.
  • FIG. 1 shows a vertical section of a first embodiment of a separator device according to the invention with a static cascade classifier as a cautionary and static air classifier as a hindrance
  • a static cascade classifier is arranged in the lower part of a conical classifier housing 10 as a precautionary measure and in the upper part a static air classifier as an indulgence classifier.
  • the static cascade classifier consists of two packets each spaced above and concentrically arranged conical frustum-shaped conical rings, namely a radially outer staircase cone ring package 11 and a radially inner preparefluten Konusringtext 12.
  • a viewing zone 13 is also formed in the shape of a conical stump, the large diameter D at the top and its small diameter d is located on the underside of the ring packages, where D is significantly greater than d.
  • the material to be sighted which may also contain Gutagglomerate as the pressing slugs of a Gutbettzerkleine- tion roller press introduced.
  • thisstreamgutes 16 the fresh material and / or may be recirculated Good in a Kreislaufmahlstrom, by gravity from top to bottom on the steps of the radially outer conical ring packet 11 with Impact of the goods in particular on these outer conical rings and with Gutummélzung, the Gutagglomerate be deagglomerated, approximately in the cross flow through the inserted into the classifier housing 10 of the static cascade classifier air stream 17 vorgesichtet, and effectively dried when using hot gas instead of cold air.
  • the coarse fraction 18, which leaves the cascade peeler below through the discharge opening 15, is generally recirculated to the grinding mill mill with the separator inserted.
  • the Nachsichter with exit of the laden with the fines classifying air 19 is arranged.
  • the separating air / fine material flow 19 is supplied to a separator, not shown in the drawing, for the purpose of separating off the fine fine material, the exhaust air of which can be recirculated again into the static cascade classifier as part of the air flow 17.
  • the above-installed inside the cascade classifier is a static Luftstromsichter without moving components.
  • the distributed around the circumference exhaust air 20a, 20b, etc. of the cascade classifier flows, in this exhaust air to the prospect of coarse grain fraction a mid-grain fraction and the fine grain fraction is suspended, from bottom to top in the annulus between the inner Gutroterichter 21 and the outer housing
  • the suspension is separated into a middle-grain fraction 23 which, as a result of the action of gravity on the inside of the funnel 21, runs down to a central Gutaustragsöff- 24 of the classifier is transported while in the classifying air stream 19 remaining fine crown fraction is withdrawn via the central deflecting hood 25 from the classifier.
  • the center grain fraction 26 leaving the sifter means may be fed to a separate use.
  • it is also possible to recirculate the coarse grain fraction 18 and the middle grain fraction 26 of the classifying device if necessary in a summarized manner for the purpose of feeding the mill of a grinding cycle.
  • the after-sighting device integrated in the interior of the radially inner conical ring package 12 of the static cascade classifier is not, as in FIG. 1, a static air flow sensor without moving parts, but a dynamic rod cage sensor whose rotatably mounted, on Rotor periphery provided with turbo elements rod basket 27 with a vertical axis of rotation 28 concentrically within the vane ring 22 at the top of the sifter is arranged.
  • the medium grain fraction 23 shown in Fig. 1 is withdrawn, while deducted over the upper end face of the rotating rod basket 27 of the visual air / fine grain or Fertiggut-stream represented by the arrow 19 and for the purpose of separation of the finished good is fed to a separator, not shown in the drawing.
  • the sifter described above is switched into a grinding circuit with a roller mill or roller mill 29, in such a way that the discharge openings 15 and 24 for discharging the coarse grain fraction 18 and the middle grain fraction 26 are arranged from the classifying device above the crop feed of the roller mill ,
  • This mill has a horizontal grinding plate 30, which can be set in rotation by a drive motor 31 via a gear.
  • the grinding stock to be placed on the circular grinding track of the grinding table 30 is used by several Rolled around the circumference Mahlrolleri 32 rolled over and ground.
  • the roller mill 29 can work without air flow.
  • Theühlenaustragsgut 33 is via a conveyor 34 such. B. bucket elevator to the Guteintragsö réelleen 14 a, 14 b, etc. of the cascade ssichterteils the classifier transported, in which also the fresh material 35 is introduced, for. As cement raw material, cement clinker or the like.
  • the fresh material 35 can in principle be introduced at any point in the grinding circuit. If the fresh material 35 moist, it is introduced with particular advantage to the Guteintragsö Maschinenen 14a, 14b, etc. of the cascade sifter together with the coming of the roller mill mill 32 Mahlgut 33 in the grinding circuit. In this way, the moist fresh material is dried and pre-sifted in the cascade sifter, in particular with hot gas, so that only dry ground material passes into the cylindrical roller mill 32 and the roller mill can operate without air flow or gas flow.
  • the fresh agglomerates and possibly contained in Mühlenaustragsgut Gutagglomerate be effectively deagglomerated, effectively dried and about in the cross flow vorgesichtet. Due to this and due to the reduced pressure loss by eliminating the use of an air flow in the roller mill, the Kreislaufmahlstrom invention is characterized by a low specific energy consumption.
  • the classifying device in contrast to FIG. 2, is combined with a roller mill with a comminution-type roller press or roller press 36. niert, whose Austragsgut contains 37 so-called squeegees, which are particularly effectively disagglomerated and sighted after recirculation in Kaskadensicht part of the sifter.
  • the coarse grain fraction / middle grain fraction discharge 38 of the classifying device is arranged directly above the material feed chute 39 of the roller press 36.
  • the sifter is combined with a single roller press 36 as shown in FIG. However, because of its high throughput, it can also be combined with several such roller presses 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Pour créer un dispositif de tamisage compact pour le tamisage de produits granuleux qui présente comme pré-tamis un tamis statique en cascade auquel un autre tamis peut être raccordé comme tamis final, ledit tamis statique étant disposé à l'intérieur d'un boîtier de tamisage (10), l'invention a pour objet d'utiliser comme tamis en cascade deux paquets de bagues coniques disposées concentriquement les unes par rapport aux autres et à distance les unes au-dessus des autres, à savoir un paquet radialement extérieur (11) de bagues coniques en escalier et un paquet radialement intérieur (12) de bagues coniques d'écoulement de tamisage, et de donner à la zone de tamisage (13) formée entre le paquet radialement extérieur de bagues et le paquet radialement intérieur de bagues sensiblement la forme d'un tronc d'enveloppe conique dont le grand diamètre (D) est situé sur le côté supérieur et le petit diamètre (d) est situé sur le côté inférieur des paquets de bagues, et de disposer sur le côté supérieur de la zone de tamisage (13) du tamis statique en cascade de grand diamètre (D) plusieurs ouvertures (14a, 14b, etc.) d'entrée de produit à tamiser réparties à sa périphérie. L'invention concerne en outre le branchement de ce dispositif de tamisage dans un circuit de broyage doté de broyeurs et de tamis.
EP07801812.4A 2006-08-24 2007-08-22 Dispositif de tamisage destiné à tamiser des produits granuleux et installation de broyage en circuit fermé à laquelle est raccordé un tel dispositif de tamisage Not-in-force EP2106301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006039775A DE102006039775A1 (de) 2006-08-24 2006-08-24 Sichteinrichtung zum Sichten körnigen Gutes und Kreislaufmahlanlage mit Einschaltung einer solchen Sichteinrichtung
PCT/EP2007/007382 WO2008022778A2 (fr) 2006-08-24 2007-08-22 dispositif de tamisage destiné à tamiser des produits granuleux et installation de broyage en circuit fermé à laquelle est raccordé un tel dispositif de tamisage

Publications (2)

Publication Number Publication Date
EP2106301A2 true EP2106301A2 (fr) 2009-10-07
EP2106301B1 EP2106301B1 (fr) 2013-04-24

Family

ID=38962866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801812.4A Not-in-force EP2106301B1 (fr) 2006-08-24 2007-08-22 Dispositif de tamisage destiné à tamiser des produits granuleux et installation de broyage en circuit fermé à laquelle est raccordé un tel dispositif de tamisage

Country Status (9)

Country Link
EP (1) EP2106301B1 (fr)
CN (1) CN101528366A (fr)
CL (1) CL2007002482A1 (fr)
DE (1) DE102006039775A1 (fr)
DK (1) DK2106301T3 (fr)
EA (1) EA200900352A1 (fr)
PE (1) PE20080869A1 (fr)
TW (1) TW200831201A (fr)
WO (1) WO2008022778A2 (fr)

Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
DE102011055762B4 (de) 2011-11-28 2014-08-28 Maschinenfabrik Köppern GmbH & Co KG Vorrichtung zum Sichten von körnigem Gut und Mahlanlage
CN102744135B (zh) * 2012-07-20 2014-07-23 北京建筑大学 一种气流筛分粉碎机
DE102014001384B4 (de) * 2014-02-01 2018-03-29 Khd Humboldt Wedag Gmbh Ringförmiger Kaskadensichter mit nachgeschaltetem Stabkorbsichter
CN103964513B (zh) * 2014-05-05 2015-07-08 南通宝聚颜料有限公司 一种连续式硫酸亚铁游离酸分离装置
DE102014015550A1 (de) * 2014-10-22 2016-04-28 Thyssenkrupp Ag Sichteinrichtung zum Sichten eines körnigen Materialstroms
CN108435293B (zh) * 2018-03-14 2019-03-26 北京中核大地矿业勘查开发有限公司 一种矿山生态恢复设备
CN108940442A (zh) * 2018-08-03 2018-12-07 南京环务资源再生科技有限公司 一种废旧电器的重力分选式粉碎机
CN109158316B (zh) * 2018-09-07 2024-04-23 天津水泥工业设计研究院有限公司 一种用于料床粉磨系统的紧凑型组合式选粉机
CN109046694A (zh) * 2018-09-17 2018-12-21 长沙开元仪器有限公司 一种研磨式粉碎机
WO2020245768A1 (fr) * 2019-06-04 2020-12-10 Flsmidth A/S Séparateur intégré
CN113941407B (zh) * 2021-11-05 2025-04-15 湖南创大玉兔化工有限公司 一种钛白粉加工用反应釜
CN114345454A (zh) * 2021-12-01 2022-04-15 中材（天津）粉体技术装备有限公司 一种高效低阻型立式辊磨机
CN115625001B (zh) * 2022-12-20 2023-03-14 保定旗开得胜办公设备制造有限公司 一种打印机用均匀颗粒度碳粉研磨制备装置
CN116060185B (zh) * 2023-04-06 2023-06-20 山东埃尔派粉体科技有限公司 一种可实现惯性自分流的气流分级筛选机
CN117066115B (zh) * 2023-08-14 2026-01-16 天津水泥工业设计研究院有限公司 一种粗细梯度分级选粉机及其分级方法、设计方法
CN118022953B (zh) * 2024-04-12 2024-06-04 河北惠尔信新材料股份有限公司 磷酸铁锂生产用多级研磨装置
CN118698876B (zh) * 2024-08-19 2025-07-18 江苏西宏生物医药有限公司 一种生物制药用药品颗粒筛选设备

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Also Published As

Publication number Publication date
WO2008022778A3 (fr) 2008-04-17
CN101528366A (zh) 2009-09-09
DK2106301T3 (da) 2013-07-08
EP2106301B1 (fr) 2013-04-24
CL2007002482A1 (es) 2008-01-04
DE102006039775A1 (de) 2008-02-28
EA200900352A1 (ru) 2009-12-30
TW200831201A (en) 2008-08-01
WO2008022778A2 (fr) 2008-02-28
PE20080869A1 (es) 2008-07-02

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