EP0352192B1 - Verfahren zur Zerkleinerung und Verdichtung irgendeines Mineralgutes und Vorrichtung zur Durchführung dieses Verfahrens - Google Patents

Verfahren zur Zerkleinerung und Verdichtung irgendeines Mineralgutes und Vorrichtung zur Durchführung dieses Verfahrens Download PDF

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Publication number
EP0352192B1
EP0352192B1 EP89402066A EP89402066A EP0352192B1 EP 0352192 B1 EP0352192 B1 EP 0352192B1 EP 89402066 A EP89402066 A EP 89402066A EP 89402066 A EP89402066 A EP 89402066A EP 0352192 B1 EP0352192 B1 EP 0352192B1
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EP
European Patent Office
Prior art keywords
press
product
density
outlet
agglomerated
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.)
Expired - Lifetime
Application number
EP89402066A
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English (en)
French (fr)
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EP0352192A1 (de
Inventor
Maurice Paliard
Jean-Marc Martin
Francis Cochet
Benoît Valdelievre
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Technip Energies France SAS
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Technip SA
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Application filed by Technip SA filed Critical Technip SA
Priority to AT89402066T priority Critical patent/ATE99563T1/de
Publication of EP0352192A1 publication Critical patent/EP0352192A1/de
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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
    • B02C23/10—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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/002—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill
    • B02C21/005—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill the roller mill having cooperating rollers
    • 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
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator

Definitions

  • the present invention essentially relates to a process for grinding and compacting any mineral material, such as for example cement clinker.
  • roller presses for grinding and compacting various mineral or organic materials has been known for a long time. It is also known that, in order to obtain regular operation of the roller presses, the material feeding the press must be preconditioned to avoid excessive swelling in the feed.
  • Also known from document US-A-3 887 142 is a process for grinding ore with added water, in which the arrival of ore and water at using density and flow measurement devices placed on the circuit traversed by the aqueous suspension collected downstream of the mill.
  • the present invention aims to remedy this drawback in particular by proposing a method and a grinding installation which make it possible to ideally precondition the material feeding the press, which can thus work optimally.
  • the subject of the invention is a process for grinding and compacting any raw mineral material, such as for example cement clinker, and of the type consisting in preconditioning this material before crushing it by crushing in a press.
  • rollers characterized in that a mixture of said raw mineral material is passed with an agglomerated or compacted product recycled and with a grainy or pulverized product recycled in said roller press, the product leaving the roller press is fractionated in an agglomerated or compacted product, in a grainy or powdery product, and in a product end which is evacuated, and at least part of the agglomerated or compacted product and at least part of the granular or pulverulent product are recycled to said roller press to form a preconditioned mixture sent to said roller press, and the density is checked.
  • the bulk density at the press feed is regulated between 1.7 and 2.05.
  • the invention also relates to a grinding and compacting installation for the implementation of the process corresponding to the above characteristics and of the type comprising a roller press allowing the grinding and partial agglomeration of any mineral material, means for passing said mineral material through said press, and, downstream of this press, a means of transport associated with a first distributor system and allowing the recycling of a part of the crushed and partially agglomerated material towards the press supply, characterized in that it comprises a second distributor system supplied with the other part of the material leaving the first distributor system, said second distributor system having a first outlet and a second outlet, the first outlet communicating with said means of transport to thereby regulate the quantity and density of the crushed and partially agglomerated material recycled to the feed of the roller press, and the second outlet communicating with a separator to separate the fine product from a grainy or powdery product ranging by a pipe to the feed to the roller press, and in that it further comprises an apparatus for measuring the density of the material feeding the press, located at the entrance to said press.
  • one of the two aforementioned distributing systems is a screen or a sieve.
  • This installation is further characterized in that it is further equipped with a third distributor for the grainy or pulverulent product, a first outlet of which is connected by a conduit to the inlet of the roller press, and a second outlet is connected. at the second output of the aforementioned second distributor system.
  • this installation also comprises means allowing the device for measuring the density of the material feeding the press to act automatically on the first distributor system and the third distributor system so as to allow the control of the density of the products feeding said press.
  • the installation visible in the single figure is a grinding installation in a closed circuit comprising a press 1 with rollers 2, the inlet 3 of which is provided with a device for measuring the density of the products feeding the press. 1, which device is identified schematically in 4.
  • the press 1 is supplied with raw products as materialized by line 5, with a ground product and partially agglomerated by the press and recycled, as materialized by line 6, and with grainy or powdery products, as materialized by line 7, these latest products from a pneumatic separator or equivalent system 8.
  • the separator 8 receives a mixture of ground products, as will be described in detail below, and this by line 9, and it separates said mixture into a fine and finished product which is discharged in suspension in the gases extracted via line 10 , and in a grainy or pulverulent product which leaves the separator 8 via the pipe 11. It will be observed here that the separator 8 ensures, at the level of the bodies for distributing the material, a disaggregation function.
  • the crushed and agglomerated product forms a stream 12 passing through a first distributor system 13 dividing the material into two partial streams marked at 14 and 15.
  • the stream 14 essentially comprising compacted plates is recycled to the input 3 of the press 1 by a means of transport 16 connected to the line 6 previously mentioned.
  • the other part or flow 15 of the material leaving the first system distributor 13 feeds a second distributor system 17 dividing the flow of crushed and partially agglomerated product on the one hand into coarse elements leaving through line 18 communicating with the means of transport 16, and on the other hand into fine products leaving through line 19 .
  • line 19 could lead directly to the conveyor 20 recycling the fine products to the inlet of the pneumatic separator 8 via the line 9 mentioned above.
  • the separator 8 outlet pipe 11 is equipped with a third distributor system 21, the outlet of which is connected on the one hand to the line 7 leading to the inlet 3 of the press 1, and on the other hand, although this is not shown, at the outlet 19 of the second distributor system 17, via a conduit or the like 22, for the purpose of directly recycling the grainy product to the feed of the separator 8.
  • the installation comprises additional grinding equipment shown diagrammatically at 23 which may be constituted by a ball, bar, vibrating, impact or similar mill.
  • outlet 19 can be equipped with a distribution flap 24 for the finished products leaving the second distribution system 17.
  • the distribution flap 24 subdivides the material which reaches it into two lines, namely a line 25 terminating in the crusher 23 and a line 26 terminating in the conveyor 20, which also receives the ground products extracted from the crusher 23 by the line 27.
  • the duct 22 instead of being directly connected to the outlet 19 of the second distributor system 17, is here connected to the inlet of the crusher 23, which may include ventilation which can be used to extract at least part of the ground product.
  • the density in bulk or of the mixture of the various forms of the material fed to the inlet 3 of the roller press 1 by the lines 5, 6 and 7 will be modulated in such a way that it lies within a range allowing stable operation. of the press, and this essentially by modulating the proportion of recycled platelets in line 6, by actuation of the first distributor system 13.
  • the above-mentioned bulk density will also be advantageously modulated by acting on the third system distributor 21 to modulate the proportion of granular products passing through line 7.
  • the second distributor system 17 also intervenes for the regulation of the bulk density of the products feeding press 1 since, as we understand, it plays a role as regards the quantity of plates leaving the first distributor system 13 and recycled at the inlet 3 of the press 1 via the transport means 16.
  • the second distributor system 17 or the first distributor system 13 can be constituted by a screen, a sieve or the like.
  • the bulk density of the material feeding the roller press should have, according to an essential characteristic of this invention, a value between 0.60 D p and 0.90 D p , D p being the density of the agglomerated or compacted product leaving the press.
  • the density of the material feeding the press will preferably be between 0.68 and 0.85 D p, it being understood that the regulation of the density giving the press excellent operating stability can be carried out in any suitable manner.
  • the density measuring device 4 located at the inlet 3 of the press 1 will advantageously and at all times allow the density of the products feeding said press to be controlled, this device possibly being able to act automatically on the distributing systems 13 and 21.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Press Drives And Press Lines (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Fertilizers (AREA)

Claims (6)

  1. Verfahren zur Zerkleinerung und Verdichtung irgendeines Mineralrohstoffes, wie z.B. von Zementklinker und derjenigen Gattung, die darin besteht, diesen Werkstoff vorzubehandeln bevor man ihn durch Zermalmen in einer Walzenpresse zerdrückt, dadurch gekennzeichnet, dass man ein Gemisch des besagten Mineralrohstoffes (5) zusammen mit einem zurückgeführten brikettierten oder verdichteten Gut (6) und mit einem zurückgeführten graupigen oder pulverigen Gut (7) in die besagte Presse (1) mit Walzen (2) einfahren lässt, man das aus der Walzenpresse herauskommende Gut in ein brikettiertes bzw. verdichtetes Gut (14), in ein graupiges bzw. pulveriges Gut (11) und in ein feines Gut (10), das abgeführt wird, zerteilt und dass man wenigstens einen Teil des brikettierten oder verdichteten Gutes (14, 16, 6) und wenigstens einen Teil des graupigen oder pulverigen Gutes (11) zur besagten Walzenpresse zurückführt, um ein zu der besagten Walzenpresse gesandtes vorbehandeltes Gemisch zu bilden und man die Schüttwichte der die Presse speisenden Erzeugnisse kontrolliert, indem man den Anteil des zurückgeführten brikettierten Gutes (6) und den Anteil des zurückgeführten graupigen Gutes (7) moduliert, damit die besagte Schüttwichte der die Walzenpresse speisenden Erzeugnisse bei einem zwischen 0,68 Dp und 0,85 Dp gehalten wird, wobei Dp die Dichte des aus der Presse herauskommenden brikettierten bzw. verdichteten Gutes ist, um eine stabile Arbeitsweise der Letzteren zu gewährleisten, also den für das Zerquetschen erforderlichen augenblicklichen Energieverbrauch zu stabilisieren.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass für die Zerkleinerung des Zementes die Schüttwichte am Speisungseingang der Presse zwischen 1,7 und 2,05 eingestellt wird.
  3. Zerkleinerungs- und Verdichtungsanlage zur Durchführung des Verfahrens gemäss Anspruch 1 oder 2 und derjenigen Gattung, mit einer das Zerdrücken und das Teilbrikettieren irgendeines Mineralstoffes gestattenden Presse (1) mit Walzen (2), Mitteln, um den besagten Mineralstoff in die besagte Presse einzuführen und stromabwärts dieser Presse, einem einem ersten Verteilersystem (13) zugeordneten und die Zurückführung eines Teiles (14) des zermalmten und teilweise stückiggemachten Gutes zum Speiseeingang (3) hin der Presse (1) gestattenden Fördermittel (16), dadurch gekennzeichnet, dass sie ein zweites durch den anderen Teil (15) des aus den ersten Verteilersystem (13) herauskommenden Gutes gespeistes Verteilersystem (17) umfasst, wobei das besagte zweite Verteilersystem (17) einen ersten Austritt (18) und einen zweiten Austritt (19) hat, wobei der erste Austritt (18) mit dem besagten Fördermittel (16) in Verbindung steht, um somit die Menge und die Dichte des zu dem Speiseeingang (3) der Walzenpresse zurückgeführten zermalmten und teilweise brickettierten Gutes einzustellen und der zweite Austritt (19) mit einem Abscheider (8) in Verbindung steht, um Feingut (10) von einem durch eine Leitung (7) zum Speiseeingang (3) der Walzenpresse gehenden graupigen oder pulverigen Gut (11) zu trennen und dass sie ausserdem ein am Eingang (3) der besagten Presse liegendes Gerät (4) zur Messung der Dichte des die Presse (1) speisenden Gutes aufweist.
  4. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass das eine der beiden vorgenannten Verteilersysteme (13, 17) ein Sichter oder ein Sieb ist.
  5. Anlage gemäss Anspruch 3 oder 4, dadurch gekennzeichnet, dass sie ausserdem mit einem dritten Verteiler (21) für das graupige oder pulverige Gut ausgerüstet ist, von dem ein erster Austritt durch die Leitung (7) an den Eingang (3) der Walzenpresse (1) angeschlossen ist und ein zweiter Austritt (22) an den zweiten Austritt (19) des vorgenannten zweiten Verteilersystems (17) angeschlossen ist.
  6. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass sie ausserdem Mittel aufweist, die es dem Gerät (4) zur Messung des die Presse speisenden Gutes gestattet, automatisch auf das erste Verteilersystem (13) und das dritte Verteilersystem (21) einzuwirken, um die Kontrolle der Dichte der die besagte Presse speisenden Erzeugnisse zu gestatten.
EP89402066A 1988-07-22 1989-07-20 Verfahren zur Zerkleinerung und Verdichtung irgendeines Mineralgutes und Vorrichtung zur Durchführung dieses Verfahrens Expired - Lifetime EP0352192B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402066T ATE99563T1 (de) 1988-07-22 1989-07-20 Verfahren zur zerkleinerung und verdichtung irgendeines mineralgutes und vorrichtung zur durchfuehrung dieses verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809975A FR2634402B1 (fr) 1988-07-22 1988-07-22 Procede de broyage et compactage d'une matiere minerale quelconque et installation pour la mise en oeuvre de ce procede
FR8809975 1988-07-22

Publications (2)

Publication Number Publication Date
EP0352192A1 EP0352192A1 (de) 1990-01-24
EP0352192B1 true EP0352192B1 (de) 1994-01-05

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ID=9368710

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EP89402066A Expired - Lifetime EP0352192B1 (de) 1988-07-22 1989-07-20 Verfahren zur Zerkleinerung und Verdichtung irgendeines Mineralgutes und Vorrichtung zur Durchführung dieses Verfahrens

Country Status (8)

Country Link
US (1) US4976469A (de)
EP (1) EP0352192B1 (de)
JP (1) JP2665381B2 (de)
AT (1) ATE99563T1 (de)
CA (1) CA1316515C (de)
DE (1) DE68912012T2 (de)
ES (1) ES2049835T3 (de)
FR (1) FR2634402B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107597390A (zh) * 2017-10-19 2018-01-19 湖州城区天顺化工厂 一种化工产品粉碎和垃圾处理的运输一体机
WO2021008003A1 (zh) * 2019-07-18 2021-01-21 江苏新业重工股份有限公司 一种粉碎彻底的粉料辊压机

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NL9000105A (nl) * 1990-01-16 1991-08-16 Wiener & Co Apparatenbouw Bv Werkwijze en inrichting voor het verwerken van chocolademassa.
DE4005323A1 (de) * 1990-02-20 1991-08-22 Krupp Polysius Ag Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut
DE4029202A1 (de) * 1990-09-14 1992-03-19 Buehler Ag Verfahren zum sortieren von partikeln eines schuettgutes und vorrichtungen hierfuer
EP0476209A1 (de) * 1990-09-21 1992-03-25 Minas De Almaden Y Arrayanes, Sa Verfahren zur Anreicherung von heterogenen Mineralien
FR2670135B1 (fr) * 1990-12-06 1993-03-26 Cle Procede de broyage de matieres cassantes comportant pour la mise en óoeuvre du procede une desagglomeration selective et installation.
JPH089016B2 (ja) * 1991-05-14 1996-01-31 川崎重工業株式会社 竪型ローラミルによる粉砕装置および粉砕方法
DK101792A (da) * 1992-08-17 1994-02-18 Smidth & Co As F L Fremgangsmåde til formaling af materiale
DE4337215A1 (de) * 1993-10-30 1995-05-04 Kloeckner Humboldt Deutz Ag Umlaufmahlanlage
US5644181A (en) * 1995-01-05 1997-07-01 Dayton-Phoenix Group, Inc. Stator lamination design having a tapered opening
DE19528736A1 (de) * 1995-08-04 1997-02-06 Krupp Polysius Ag Verfahren und Anlage zur Erzeugung eines Gemisches aus zerkleinertem Mahlgut und Wasser
JP2920876B2 (ja) * 1996-04-18 1999-07-19 川崎重工業株式会社 竪型ローラミルによるセメントクリンカの粉砕装置および方法
US6193176B1 (en) * 1997-02-18 2001-02-27 Kawasaki Jukogyo Kabushiki Kaisha Cement clinker grinding method using vertical roller mill and apparatus
DE19757431A1 (de) * 1997-12-23 1999-06-24 Kloeckner Humboldt Wedag Verfahren zum Betrieb einer Kreislaufmahlanlage zum Mahlen von sprödem Gut
DE10056158C5 (de) * 2000-11-13 2014-11-13 Thyssenkrupp Industrial Solutions Ag Verfahren und Anlage zur Herstellung von Feingut
DE10147591B4 (de) * 2001-09-27 2006-11-16 Polysius Ag Mahlanlage
EP1717215A1 (de) * 2005-04-19 2006-11-02 Lafarge Verfahren zur Kompaktieren von hydraulischen Bindemitteln und gemahlene Tabletten
DE102006017510A1 (de) * 2006-04-13 2007-10-18 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage
US20080085160A1 (en) * 2006-10-04 2008-04-10 Taylor James W Soil substitute materials and methods of using the same
US8789784B2 (en) * 2010-05-14 2014-07-29 Ange Construction Co. Mobile self-contained loading and crushing apparatus
CN102008989B (zh) * 2010-12-15 2012-01-25 许相柱 节能球磨筛选联合机
DE102015001404B3 (de) * 2015-02-04 2016-08-04 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage mit zwei Mahlvorrichtungen und Verfahren zum Betrieb der Kreislaufmahlanlage
DE102015009273B3 (de) * 2015-07-16 2016-12-29 Khd Humboldt Wedag Gmbh Verfahren und Vorrichtung zum zweistufigen Mahlen von Frischgut
CN112264172A (zh) * 2020-09-24 2021-01-26 酒泉钢铁(集团)有限责任公司 一种低品位磁铁矿分级干磨干选生产铁精矿工艺

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EP0238432A2 (de) * 1986-02-14 1987-09-23 Nordberg Inc. Verfahren und Vorrichtung zur energiesparenden Zerkleinerung

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EP0238432A2 (de) * 1986-02-14 1987-09-23 Nordberg Inc. Verfahren und Vorrichtung zur energiesparenden Zerkleinerung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107597390A (zh) * 2017-10-19 2018-01-19 湖州城区天顺化工厂 一种化工产品粉碎和垃圾处理的运输一体机
WO2021008003A1 (zh) * 2019-07-18 2021-01-21 江苏新业重工股份有限公司 一种粉碎彻底的粉料辊压机

Also Published As

Publication number Publication date
ATE99563T1 (de) 1994-01-15
ES2049835T3 (es) 1994-05-01
EP0352192A1 (de) 1990-01-24
JP2665381B2 (ja) 1997-10-22
CA1316515C (en) 1993-04-20
FR2634402B1 (fr) 1992-04-03
JPH0372963A (ja) 1991-03-28
DE68912012T2 (de) 1994-05-19
FR2634402A1 (fr) 1990-01-26
DE68912012D1 (de) 1994-02-17
US4976469A (en) 1990-12-11

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