EP2906349B1 - Installation de broyage - Google Patents

Installation de broyage Download PDF

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Publication number
EP2906349B1
EP2906349B1 EP13777001.2A EP13777001A EP2906349B1 EP 2906349 B1 EP2906349 B1 EP 2906349B1 EP 13777001 A EP13777001 A EP 13777001A EP 2906349 B1 EP2906349 B1 EP 2906349B1
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EP
European Patent Office
Prior art keywords
classifier
classifying
grinding
roller press
installation according
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.)
Active
Application number
EP13777001.2A
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German (de)
English (en)
Other versions
EP2906349A1 (fr
Inventor
Olaf Hagemeier
Aimo Dirk HAACK
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Industrial Solutions 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
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Publication of EP2906349A1 publication Critical patent/EP2906349A1/fr
Application granted granted Critical
Publication of EP2906349B1 publication Critical patent/EP2906349B1/fr
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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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • 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
    • 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
    • B02C23/10—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
    • 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
    • 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
    • B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • 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

Definitions

  • the invention relates to a grinding plant according to the preamble of claim 1 for the comminution of brittle material.
  • a Umlaufmahlstrom is known with a static sifter arranged above the roller press, wherein the coarse material of the classifier passes by gravity into the feed chute of the roller press.
  • the fresh material, together with the rams of the roller press discharge, will be delivered to the static sifter via a conveyor.
  • the width of the classifier is substantially adapted to the width of the grinding rollers so that the comminuted material to be ground with optimum width distribution passes into the static classifier.
  • both variants require a high design effort and lead to a very high height.
  • the arrangement of the roller press above the static classifier is associated with enormous costs due to the high weight.
  • a grinding plant which includes a roller press for crushing brittle material with two counter-rotating grinding rollers, also a static separator with a prepare for crushing brittle material with two counter-rotating grinding rollers, also a static separator with a prepare for crushing brittle material with two counter-rotating grinding rollers, with a Grobgutauslass and a fine material outlet, wherein the Grobgutauslass communicates with the roll press ,
  • This grinding plant also contains a conveyor, which promotes the discharge of the roller press to prepare for the static classifier.
  • the DE 694 21 994 T2 shows finally a grinding plant with a roller mill and a classifier of the fluid bed type.
  • the box-shaped housing of this classifier is divided by a porous inclined partition plate into an upper fluid bed chamber and a lower air inlet chamber.
  • the regrind to be classified is introduced from above into the fluid bed chamber on one side, while on the other side the fluidized fines are discharged upwards and the non-floating coarse material is drawn off downwards.
  • the invention has for its object to simplify a grinding system referred to in the preamble of claim 1 species in a constructive respect and at the same time to allow a high visual efficiency.
  • the conveyor and the classifier are structurally arranged side by side, the overall height and thus the design complexity can be significantly reduced. Also, the fact that the plant parts are arranged in the material flow direction in a straight line one behind the other, the construction can be simplified, since no lateral material deflections between roller press and sifter are required. The material to be inspected is thus transported in one direction and thereby raised only by the conveyor.
  • the conveyor side facing the sifter while the reformgaseinlass is connected in a remote from the conveyor area to the sifter, which arranged in a line one behind the other system parts, in particular the conveyor and the classifier, very compact ,
  • the static sifter has two viewing chambers arranged one above the other and separated from one another by the aeration bottom, wherein the fresh material inlet and / or ground material comminuted in the roller press opens into the upper sifting space and the sifting gas inlet is connected to the lower sifting space.
  • the first coarse material outlet is also connected to the upper viewing space, and the lower viewing space is provided with a second coarse material outlet.
  • the in the FIGS. 1 and 2 Milling plant shown essentially comprises a roller press 1, a conveyor 2 and a separator 3.
  • the roller press is equipped for crushing brittle ground material, such as limestone, with two counter-rotating grinding rollers, which form a Mahlspalt between them and are pressed against each other with high pressure.
  • the roller press is particularly suitable for comminution, as in the EP 0 084 383 is described in more detail.
  • the static sifter 3 has a prepare for fresh and / or comminuted in the roller press 1 regrind 5, an angle to the horizontal arranged, traversed by classifying gas 6 aeration bottom 7, a Grobgutauslass 8 and a fines outlet 9.
  • the conveyor 2 is preferably designed as a bucket elevator, wherein the upper end 2a is in communication with the prepareguteinlass 4 of the classifier 3 via a chute 10.
  • a conveyor 11 for example a tape drive or a belt conveyor, which communicates with a Frischgutiergabe 12 and the roller press 1 to transport fresh material to be ground 13 and / or ground in the roller press ground material 14 to the lower end 2b of the conveyor 2 ,
  • the roller press 1, the conveyor 2 and the classifier 3 are structurally arranged side by side and in the material flow direction 15 in a straight line one behind the other.
  • the width of the conveyor 2 substantially corresponds to the width of the preparefory conveyor 3.
  • the width of conveyor and classifier for example, at least 2.5 m, 3 m , 3.5 m, or 4 m.
  • the conveyor can of course also be formed by two or more transversely to the conveying direction 15 directly juxtaposed, correspondingly narrower conveyors.
  • the classifier 3 will be described below with reference to FIG Fig. 3 described in more detail. It essentially consists of an upper viewing area 16, a lower viewing area 17 and the ventilation floor 7 arranged obliquely to the horizontal, which separates the two viewing areas from one another.
  • the ventilation floor 7 is as an inclined plane with Ventilation openings or formed as an inclined hole bottom.
  • the openings of the ventilation floor can have different opening geometries distributed over the entire area.
  • the crusherguteinlass 4 opens into the upper viewing space 16 in the region of the upper end of the ventilation floor 7, while at the lower reformraum 17 a reformgaseinlass 18 is provided for supplying the reformgas 6.
  • the classifying gas 5 flows from the classifying gas inlet 18 upwards and through the aeration bottom 7.
  • the classifying material 5 is thus flowed through in the upper classifying chamber 16 essentially transversely through the classifying gas, whereby the coarse material is discharged via the first crude material output 8 arranged at the lower end of the aeration bottom 7.
  • the fine material is fed together with the classifying gas via the fine material outlet 9 to a subsequently arranged dynamic classifier 19.
  • the coarse material of the countercurrent sight zone falls down on an inclined bottom 20 of the lower reformraums 17, at the lower end of a second Grobgutauslass 21 is provided for the coarse material of the counterflow view zone.
  • the angle of inclination of the inclined bottom 20 is expediently greater than the wall friction angle of the coarse material to be rejected, in order to ensure that the coarse material automatically slips out of the classifier.
  • the fines of the countercurrent view zone is either pressed with the classifying gas 6 through the vent bottom 7 or can partially via one at the top of the lower view space 17 provided second fine exhaust outlet 22 withdrawn and fed via a line 23 to the dynamic classifier 19.
  • Via a arranged in the line 23 flap 24 of the branched off from the lower viewing space 17 partial flow is adjusted to thereby also affect the visibility in the transverse vision zone in the upper viewing space 16 targeted.
  • a withdrawn via line 23 amount of visible gas reduces the amount of visible gas flowing through the vent bottom 7 accordingly. In this way, the visual gas velocity distribution of the static classifier 3 for the dynamic classifier 19 can be optimized without the attendant aeration bottom failure, ie the material falling through the aeration bottom, can adversely affect the entire process.
  • the sortguteinlass 4 is arranged on the conveyor 2 side facing the sifter, while the reformgaseinlass 18 is connected to the classifying gas 6 in a region facing away from the conveyor, here on the opposite side of the separator 3.
  • the classifying gas is supplied via two or more reformgaseinlässe.
  • the angle between the orientation of the reformguteinlasses 4 and the reformgaseinlasses 18 should be at least 15 ° and at most 345 °, so that the conveyor 2 can be arranged as close to the classifier 3.
  • the sortgaseinlass 18 with the connected sighting gas line 25 should therefore not come into conflict with the conveyor 2.
  • the two coarse material outlets 8 and 21 allow an unrestricted return of the coarse material in the grinding and visual process.
  • the ventilation floor throughput is through the second Grobgutauslass 21 in the lower
  • the coarse material discharged via the coarse material outlets 8 and 21 of the static classifier 3 is conveyed upwards via a second conveyor 26, wherein the upper end is connected to the feed chute 1 a of the roller press 1 via a further conveyor 27.
  • the second conveyor 26 is expediently again designed as a bucket elevator, with a belt or belt conveyor being considered for the further conveyor 27.
  • a metal discharge device 28 is furthermore provided, via which any metal parts falling from the separator can be removed in front of the roll press 1, in order to avoid damage or destruction of the roll surfaces.
  • the fines 29 of the dynamic classifier 19 is supplied to a separator 30 together with the classifying gas.
  • roller press, conveyor and separator the height can be significantly reduced.
  • all high loads are located close to the ground, which also allows easier accessibility to the individual machines during maintenance.
  • the throughput can be increased by the use of wider classifiers.
  • the lower heights of the conveyors also increase mechanical safety and thus enable higher sales.

Landscapes

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

Claims (13)

  1. Installation de broyage comprenant :
    - une presse à rouleaux (1) pour broyer un produit cassant à broyer, qui comprend deux rouleaux de broyage tournant en sens inverse,
    - un séparateur statique (3) avec une entrée de produit à séparer (4) pour un produit à broyer (5) frais et/ou broyé dans la presse à rouleaux (1), un fond de ventilation (7) disposé obliquement par rapport à l'horizontale, traversé par du gaz de séparation, une première sortie de produit grossier (8) en liaison avec la presse à rouleaux et une sortie de produit fin (9), et
    - un système de transport (2) qui est en liaison avec la presse à rouleaux (1) et l'entrée de produit à séparer (4) du séparateur (3) afin de soulever le produit à broyer (5) frais et/ou broyé dans la presse à rouleaux,
    caractérisée en ce que
    - la presse à rouleaux (1), le système de transport (2) et le séparateur (3) sont disposés structurellement les uns à côté des autres et dans la direction du flux de matériau les uns derrière les autres en ligne droite,
    - l'entrée de produit à broyer (4) est disposée du côté du séparateur (3) tourné vers le système de transport (2),
    - le séparateur (3) présente une entrée de gaz de séparation (18) pour le gaz de séparation (6), laquelle est raccordée au séparateur (3) dans une région opposée au système de transport (2),
    - le séparateur (3) présente en outre deux espaces de séparation (16, 17) disposés l'un au-dessus de l'autre et séparés l'un de l'autre par le fond de ventilation (7),
    - l'entrée de produit à séparer (4) pour le produit à broyer (5) frais et/ou broyé dans la presse à rouleaux débouchant dans l'espace de séparation supérieure (16) et l'entrée de gaz de séparation (18) étant raccordée au niveau de l'espace de séparation inférieur (17),
    - et la première sortie de produit grossier (8) étant raccordée à l'espace de séparation supérieur (16) et l'espace de séparation inférieur (17) étant pourvu d'une deuxième sortie de produit grossier (21).
  2. Installation de broyage selon la revendication 1, caractérisée en ce que l'angle entre l'orientation de l'entrée de produit à séparer (4) et l'entrée de gaz de séparation (18) vaut au moins 15° et au plus 345°.
  3. Installation de broyage selon la revendication 1, caractérisée en ce que le système de transport (2) est réalisé sous forme de système de transport vertical, en particulier sous forme de système à godets ou sous forme de transporteur à courroie incliné obliquement.
  4. Installation de broyage selon la revendication 1, caractérisée en ce que le système de transport (2) présente une extrémité inférieure (2b) et une extrémité supérieure (2a), l'extrémité supérieure (2a) étant en liaison avec l'entrée de produit à séparer (4) du séparateur (3) par le biais d'une goulotte (10).
  5. Installation de broyage selon la revendication 1, caractérisée en ce que le système de transport (2) présente une extrémité inférieure (2b) et une extrémité supérieure (2a), l'extrémité supérieure (2a) étant en liaison avec une entrée de produit à séparer (4) du séparateur (3) et l'extrémité inférieure (2b) étant connectée par le biais d'un dispositif de transport (11) à la presse à rouleaux (1) et à un apport de produit frais (12).
  6. Installation de broyage selon la revendication 1, caractérisée en ce que le deuxième espace de séparation (17) présente un fond oblique (20) au niveau de l'extrémité inférieure duquel est disposée la deuxième sortie de produit grossier (21).
  7. Installation de broyage selon la revendication 1, caractérisée en ce que la sortie de produit fin (9) est en liaison avec un séparateur dynamique (19) de telle sorte que le produit fin du séparateur statique (3) parvienne conjointement avec l'air de séparation dans le séparateur dynamique (19).
  8. Installation de broyage selon la revendication 7, caractérisée en ce que le séparateur statique (3) et le séparateur dynamique (19) sont montés dans un boîtier de séparateur commun.
  9. Installation de broyage selon la revendication 7, caractérisée en ce que le séparateur dynamique (19) est en liaison avec un dispositif de séparation (30) disposé derrière lui.
  10. Installation de broyage selon la revendication 1, caractérisée en ce qu'un deuxième système de transport (26) est prévu, lequel est en liaison avec les sorties de produit grossier (8, 21) du séparateur statique (3) et de la presse à rouleaux (1).
  11. Installation de broyage selon la revendication 10, caractérisée en ce que le deuxième système de transport (26) présente une extrémité inférieure et une extrémité supérieure, l'extrémité inférieure étant en liaison avec les sorties de produit grossier (8, 21) du séparateur statique (3) et l'extrémité supérieure étant en liaison par le biais d'un dispositif de transport (27) avec la presse à rouleaux (1).
  12. Installation de broyage selon la revendication 11, caractérisée en ce que dans la région du dispositif de transport (27) conduisant à la presse à rouleaux (1) est prévu un dispositif d'éjection de métal (28).
  13. Installation de broyage selon la revendication 1, caractérisée en ce que la largeur du système de transport (2) correspond essentiellement à la largeur de l'entrée de produit à séparer (4) du séparateur (3).
EP13777001.2A 2012-10-10 2013-10-09 Installation de broyage Active EP2906349B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109644.9A DE102012109644B4 (de) 2012-10-10 2012-10-10 Mahlanlage
PCT/EP2013/071031 WO2014056974A1 (fr) 2012-10-10 2013-10-09 Installation de broyage

Publications (2)

Publication Number Publication Date
EP2906349A1 EP2906349A1 (fr) 2015-08-19
EP2906349B1 true EP2906349B1 (fr) 2016-08-03

Family

ID=49378251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13777001.2A Active EP2906349B1 (fr) 2012-10-10 2013-10-09 Installation de broyage

Country Status (13)

Country Link
US (1) US9630214B2 (fr)
EP (1) EP2906349B1 (fr)
CN (1) CN104853847B (fr)
AU (1) AU2013328753B2 (fr)
BR (1) BR112015007989A2 (fr)
CA (1) CA2887631C (fr)
CL (1) CL2015000888A1 (fr)
DE (1) DE102012109644B4 (fr)
DK (1) DK2906349T3 (fr)
IN (1) IN2015DN03737A (fr)
MX (1) MX355558B (fr)
PE (1) PE20151160A1 (fr)
WO (1) WO2014056974A1 (fr)

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DE102013110981A1 (de) * 2013-10-02 2015-04-02 Thyssenkrupp Industrial Solutions Ag Verfahren zum Betreiben einer Anlage mit wenigstens einem Aggregat, das eine rotierende Oberfläche aufweist
PL232821B1 (pl) * 2013-11-26 2019-07-31 Czech Adam Przed Obrotu Surowcami Wtornymi Hermex Urządzenie do czyszczenia i klasyfikacji ziarnowej drobnych odpadów metalurgicznych oraz sposób czyszczenia i klasyfikacji ziarnowej drobnych odpadów metalurgicznych
DE102015203856A1 (de) 2015-03-04 2016-12-15 Thyssenkrupp Ag Vertikal-Rollenmühle
CN106111284B (zh) * 2016-08-19 2018-10-09 天津市博爱制药有限公司 一种多功能粉碎机
CN106669888A (zh) * 2017-01-10 2017-05-17 罗干年 高效辊压粉磨站及其工艺
AU2018379413B2 (en) 2017-12-04 2023-12-14 Goldcorp Inc. Low energy process for metal extraction
CN109095032A (zh) * 2018-08-02 2018-12-28 陈健 垃圾分类回收系统
CN112620085B (zh) * 2020-12-29 2021-12-21 中铁二十四局集团西南建设有限公司 一种建筑工程循环筛沙装置
CN114308361B (zh) * 2022-01-17 2023-04-07 江苏鹏飞集团股份有限公司 内筛选循环辊压机
CN115041260B (zh) * 2022-06-14 2023-04-21 重庆市国信医药有限公司 一种灵芝孢子粉制备工艺

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JP2579885B2 (ja) 1993-10-15 1997-02-12 川崎重工業株式会社 粉粒体原料の粉砕方法と粉砕装置および分級機
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Also Published As

Publication number Publication date
AU2013328753B2 (en) 2017-05-04
CA2887631C (fr) 2020-01-07
BR112015007989A2 (pt) 2017-07-04
IN2015DN03737A (fr) 2015-09-18
WO2014056974A1 (fr) 2014-04-17
CL2015000888A1 (es) 2015-11-06
CA2887631A1 (fr) 2014-04-17
DE102012109644B4 (de) 2016-02-11
CN104853847A (zh) 2015-08-19
CN104853847B (zh) 2017-09-08
MX355558B (es) 2018-04-23
PE20151160A1 (es) 2015-08-29
DK2906349T3 (en) 2016-11-28
MX2015004405A (es) 2015-09-25
DE102012109644A1 (de) 2014-05-15
EP2906349A1 (fr) 2015-08-19
AU2013328753A1 (en) 2015-04-30
US20150258576A1 (en) 2015-09-17
US9630214B2 (en) 2017-04-25

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