EP2906349A1 - Grinding mill - Google Patents

Grinding mill

Info

Publication number
EP2906349A1
EP2906349A1 EP13777001.2A EP13777001A EP2906349A1 EP 2906349 A1 EP2906349 A1 EP 2906349A1 EP 13777001 A EP13777001 A EP 13777001A EP 2906349 A1 EP2906349 A1 EP 2906349A1
Authority
EP
European Patent Office
Prior art keywords
classifier
conveyor
roller press
classifying
grinding
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
EP13777001.2A
Other languages
German (de)
French (fr)
Other versions
EP2906349B1 (en
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
Application filed by ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp Industrial Solutions AG
Publication of EP2906349A1 publication Critical patent/EP2906349A1/en
Application granted granted Critical
Publication of EP2906349B1 publication Critical patent/EP2906349B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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.
  • EP 0 650 763 A1 discloses a circulation grinding plant with a static sifter arranged above the roll press, wherein the coarse material of the sifter passes into the feed shaft of the roll press by means of gravity. The fresh material, together with the rams of the roller press discharge, will be delivered to the static sifter via a conveyor.
  • DE 10 221 739 AI shows an arrangement in which the roller press is arranged above the static separator.
  • the width of the classifier is substantially adapted to the width of the grinding rollers, so that the comminuted material to be ground with optimal 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, wherein the Grobgutauslass is in communication with the roller press.
  • This grinding plant also contains a conveyor, which promotes the discharge of the roller press to prepare for the static classifier.
  • DE 694 21 994 T2 finally shows 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 terms of design 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.
  • FIG. 1 is a schematic front view of the grinding plant according to the invention
  • FIG. 2 is a schematic plan view of the grinding plant according to FIG. 1
  • FIG. 3 is a schematic side view of the separator.
  • the grinding installation shown in FIGS. 1 and 2 essentially has 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 roll press is particularly suitable for comminution, as described in EP 0 084 383 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 in more detail below with reference to FIG. 3. 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 substantially 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.
  • About a arranged in the line 23 damper 24 is diverted from the lower dream 17 diverted sub-stream to thereby also affect the visibility in the transverse vision zone in the upper viewing space 16 targeted.
  • Line 23 withdrawn amount of sight gas reduces the amount of sight gas flowing through the vent bottom 7 accordingly.
  • the visual gas velocity distribution of the static classifier 3 for the dynamic classifier 19 can be optimized without the associated aeration floor divergence, i. H. the good that falls through the aeration floor can adversely affect the entire process.
  • the conveyor 2 side facing the sifter the conveyor 2 side facing the sifter, while the reformgaseinlass 18 for the classifying gas 6 in a region facing away from the conveyor, here on the opposite side, to the sifter. 3 connected.
  • the classifying gas is supplied via two or more reformgaseinlässe.
  • a lateral feed into consideration.
  • 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 separator 3.
  • the convey 2 can be arranged as close to the separator 3.
  • the conveygaseinlass 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 la of the roll 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)

Abstract

The grinding mill according to the invention substantially comprises the following parts: a roller press for crushing brittle material to be ground, which comprises two counter-running grinding rollers, a static classifier with a classifying-material inlet for fresh material to be ground and/or material crushed in the roller press, an aerating base, arranged at an angle to the horizontal and flowed through by classifying gas, a first and a second coarse-material outlet and a fine-material outlet, and a transporting unit, which is in connection with the roller press and the classifying-material inlet of the classifier, in order to raise the fresh material to be ground and/or material crushed in the roller press, wherein the roller press, the transporting unit and the classifier are structurally arranged next to one another and one behind the other in a straight line in the direction of material flow, the classifying-material inlet is arranged on the side of the classifier that is facing the transporting unit, the classifier has a classifying-gas inlet, which is connected to the classifier in a region facing away from the transporting unit, the classifier has two classifying chambers, arranged one above the other, wherein the classifying-material inlet opens out into the upper classifying chamber and the classifying-gas inlet is connected to the lower classifying chamber, and wherein the first coarse-material outlet is connected to the upper classifying chamber and the lower classifying chamber is provided with a second coarse-material outlet.

Description

Mahlanlage  grinding plant
Die Erfindung betrifft eine Mahlanlage entsprechend dem Oberbegriff des Anspruches 1 zur Zerkleinerung von sprödem Mahlgut. The invention relates to a grinding plant according to the preamble of claim 1 for the comminution of brittle material.
Aus der EP 0 650 763 AI ist eine Umlaufmahlanlage mit einem oberhalb der Walzenpresse angeordneten statischen Sichter bekannt, wobei das Grobgut des Sichters mittels Schwerkraft in den Aufgabeschacht der Walzenpresse gelangt. Das Frischgut wird zusammen mit den Schülpen des Walzenpressenaustrags über ein Förderwerk dem statischen Sichter aufgeben. Weiterhin zeigt die DE 10 221 739 AI eine Anordnung, bei der die Walzenpresse oberhalb des statischen Sichters angeordnet ist. Hierbei ist die Breite des Sichters im Wesentlichen an die Breite der Mahlwalzen angepasst, sodass das zerkleinerte Mahlgut mit optimaler Breitenverteilung in den statischen Sichter gelangt. Beide Varianten erfordern jedoch einen hohen konstruktiven Aufwand und führen zu einer sehr hohen Bauhöhe. Insbesondere ist die Anordnung der Walzenpresse oberhalb des statischen Sichters aufgrund des hohen Gewichts mit enormen Kosten verbunden. EP 0 650 763 A1 discloses a circulation grinding plant with a static sifter arranged above the roll press, wherein the coarse material of the sifter passes into the feed shaft of the roll press by means of gravity. The fresh material, together with the rams of the roller press discharge, will be delivered to the static sifter via a conveyor. Furthermore, DE 10 221 739 AI shows an arrangement in which the roller press is arranged above the static separator. Here, the width of the classifier is substantially adapted to the width of the grinding rollers, so that the comminuted material to be ground with optimal width distribution passes into the static classifier. However, both variants require a high design effort and lead to a very high height. In particular, the arrangement of the roller press above the static classifier is associated with enormous costs due to the high weight.
Es hat sich ferner inzwischen herausgestellt, dass die Effizienz des statischen Sichters gesteigert werden kann, wenn er mehr in die Breite und entsprechend weniger hoch gebaut wird. Gemäß der EP 1 786 573 Bl hat sich dabei ein Verhältnis von Breite zu vertikaler Höhe des Belüftungsbodens von wenigstens 0,45 als besonders vorteilhaft herausgebildet. Walzenpressen haben jedoch üblicherweise nur eine Breite von 1,5 bis maximal 2 m und eine signifikante Steigerung der Breite ist derzeitig nicht denkbar. Derzeit werden daher sehr hohe und schmale statische Sichter verwendet. Wollte man einen breiteren und entsprechend niedrigeren Sichter unter einer Walzenpresse positionieren, so müsste man Mittel vorsehen, um das Walzenpressenaustragsgut auf die Breite des Sichters zu verteilen. Solche Maßnahmen bedingen jedoch eine zusätzliche Bauhöhe. Aus der US 1 002 504 A ist weiterhin eine Mahlanlage bekannt, die eine Walzenpresse zur Zerkleinerung von sprödem Mahlgut mit zwei gegenläufigen Mahlwalzen enthält, ferner einen statischen Sichter mit einem Sichtguteinlass für in der Walzenpresse zerkleinertes Mahlgut, mit einem Grobgutauslass und einem Feingutauslass, wobei der Grobgutauslass mit der Walzenpresse in Verbindung steht. Diese Mahlanlage enthält ferner ein Förderwerk, das den Austrag der Walzenpresse zum Sichtguteinlass des statischen Sichters hochfördert. It has now also been found that the efficiency of the static classifier can be increased if it is built more in width and correspondingly less high. According to EP 1 786 573 Bl, a ratio of width to vertical height of the ventilation floor of at least 0.45 has been found to be particularly advantageous. Roller presses, however, usually only have a width of 1.5 to a maximum of 2 m and a significant increase in the width is currently unthinkable. Currently very high and narrow static classifiers are used. If one wanted to position a wider and correspondingly lower classifier under a roll press, then one would have to provide means for distributing the Walzenpressenaustragsgut to the width of the classifier. However, such measures require an additional height. From US 1 002 504 A a grinding plant is further known, which includes a roller press for crushing brittle material with two counter-rotating grinding rollers, also a static separator with a Sichtguteinlass for comminuted in the roll press mill, with a Grobgutauslass and a fine material, wherein the Grobgutauslass is in communication with the roller press. This grinding plant also contains a conveyor, which promotes the discharge of the roller press to Sichtguteinlass the static classifier.
Die DE 694 21 994 T2 zeigt schließlich eine Mahlanlage mit einer Walzenmühle und einer Klassifiziereinrichtung des Fluidbett-Typs. Das kastenförmige Gehäuse dieser Klassifiziereinrichtung ist durch eine poröse, geneigte Trennplatte in eine obere Fluidbettkammer und eine untere Lufteintrittskammer unterteilt. Das zu klassifizierende Mahlgut wird auf der einen Seite von oben in die Fluidbettkammer eingeleitet, während auf der anderen Seite das fluidisierte Feingut nach oben ausgetragen und das nicht schwebende Grobgut nach unten abgezogen wird. DE 694 21 994 T2 finally shows 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.
Der Erfindung liegt die Aufgabe zugrunde, eine Mahlanlage der im Oberbegriff des Anspruches 1 genannten Art in konstruktiver Hinsicht zu vereinfachen und zugleich eine hohe Sichteffizienz zu ermöglichen. The invention has for its object to simplify a grinding system referred to in the preamble of claim 1 species in terms of design and at the same time to allow a high visual efficiency.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruches 1 gelöst. According to the invention, this object is solved by the features of claim 1.
Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Advantageous embodiments of the invention are the subject of the dependent claims.
Indem die Walzenpresse, das Förderwerk und der Sichter baulich nebeneinander angeordnet sind, kann die Bauhöhe und dadurch der konstruktive Aufwand erheblich reduziert werden. Auch dadurch, dass die Anlagenteile in Materialflussrichtung in gerader Linie hintereinander angeordnet werden, kann die Konstruktion vereinfacht werden, da keine seitlichen Materialumlenkungen zwischen Walzenpresse und Sichter erforderlich sind. Das zu sichtende Material wird somit in einer Richtung transportiert und dabei lediglich durch das Förderwerk angehoben. Für eine effiziente Sichtung im statischen Sichter ist eine möglichst gleichmäßige Materialaufgabe auf den Sichter wichtig. Es ist daher besonders wichtig, dass die auf dem Förderwerk vorhandene Breitenverteilung des zu sichtenden Gutes nicht durch etwaige, von der eigentlichen Transportrichtung abweichende Umlenkungen gestört wird. By the roll press, 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. For an efficient sighting in the static classifier, it is important to distribute the material as evenly as possible to the classifier. It is therefore particularly important that the existing on the conveyor width distribution of the goods to be inspected is not disturbed by any deviating from the actual transport direction deflections.
Im Rahmen der Erfindung können jedoch auch mehrere Walzenpressen und/oder mehrere Förderwerke und/oder mehrere statische Sichter zum Einsatz kommen. Within the scope of the invention, however, it is also possible to use a plurality of roller presses and / or a plurality of conveyors and / or a plurality of static classifiers.
Da erfindungsgemäß der Sichtguteinlass auf der dem Förderwerk zugewandten Seite des Sichters angeordnet ist, während der Sichtgaseinlass in einem vom Förderwerk abgewandten Bereich an den Sichter angeschlossen ist, lassen sich die in einer Linie hintereinander angeordneten Anlagenteile, insbesondere das Förderwerk und der Sichter, sehr kompakt anordnen. Since according to the invention the Sichtguteinlass is arranged on the conveyor side facing the sifter, while the Sichtgaseinlass 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 ,
Erfindungsgemäß weist der statische Sichter zwei übereinander angeordnete und durch den Belüftungsboden voneinander getrennte Sichträume auf, wobei der Sichtguteinlass für das frische und/oder in der Walzenpresse zerkleinerte Mahlgut in den oberen Sichtraum mündet und der Sichtgaseinlass an den unteren Sichtraum angeschlossen ist. Erfindungsgemäß ist ferner der erste Grobgutauslass an den oberen Sichtraum angeschlossen und der untere Sichtraum mit einem zweiten Grobgutauslass versehen. According to the invention, 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. According to the invention, 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.
Weitere Ausgestaltungen der Erfindung, die Gegenstand der Unteransprüche sind, werden im Folgenden anhand der Beschreibung eines Ausführungsbeispiels und der Zeichnung näher erläutert. Further embodiments of the invention, which are the subject of the dependent claims, are explained in more detail below with reference to the description of an embodiment and the drawing.
In der Zeichnung zeigen In the drawing show
Fig. 1 eine schematische Vorderansicht der erfindungsgemäßen Mahlanlage, Fig. 2 eine schematische Draufsicht der Mahlanlage gemäß Fig. 1 und Fig. 3 eine schematische Seitenansicht des Sichters. Die in den Figuren 1 und 2 dargestellte Mahlanlage weist im Wesentlichen eine Walzenpresse 1, ein Förderwerk 2 und einen Sichter 3 auf. Die Walzenpresse ist zur Zerkleinerung von sprödem Mahlgut, wie beispielsweise Kalkstein, mit zwei gegenläufig rotierenden Mahlwalzen ausgestattet, die zwischen sich einen Mahlspalt bilden und mit hohem Druck gegeneinander gepresst werden. Die Walzenpresse ist insbesondere zur Gutbettzerkleinerung geeignet, wie sie in der EP 0 084 383 näher beschrieben ist. Der statische Sichter 3 weist einen Sichtguteinlass 4 für frisches und/oder in der Walzenpresse 1 zerkleinertes Mahlgut 5, einen schräg zur Horizontalen angeordneten, von Sichtgas 6 durchströmten Belüftungsboden 7, einen Grobgutauslass 8 und einen Feingutauslass 9 auf. Das Förderwerk 2 ist vorzugsweise als Becherwerk ausgebildet, wobei dessen oberes Ende 2a mit dem Sichtguteinlass 4 des Sichters 3 über eine Schurre 10 in Verbindung steht. 1 is a schematic front view of the grinding plant according to the invention, FIG. 2 is a schematic plan view of the grinding plant according to FIG. 1 and FIG. 3 is a schematic side view of the separator. The grinding installation shown in FIGS. 1 and 2 essentially has 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 roll press is particularly suitable for comminution, as described in EP 0 084 383 in more detail. The static sifter 3 has a Sichtguteinlass 4 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 Sichtguteinlass 4 of the classifier 3 via a chute 10.
Weiterhin ist eine Fördereinrichtung 11, beispielsweise ein Bandlaufwerk oder ein Gurtförderer, vorgesehen, die mit einer Frischgutaufgabe 12 und der Walzenpresse 1 in Verbindung steht, um frisches Mahlgut 13 und/oder in der Walzenpresse zerkleinertes Mahlgut 14 zum unteren Ende 2b des Förderwerks 2 zu transportieren. Furthermore, a conveyor 11, for example a tape drive or a belt conveyor, is provided, which communicates with a Frischgutaufgabe 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 ,
Wie sich aus Figuren 1 und 2 ergibt, sind die Walzenpresse 1, das Förderwerk 2 und der Sichter 3 baulich nebeneinander und in Materialflussrichtung 15 in gerader Linie hintereinander angeordnet. Um eine optimale Breitenverteilung des Sichtgutes bei der Aufgabe in den Sichter 3 zu erreichen, entspricht die Breite des Förderwerks 2 im Wesentlichen der Breite des Sichtguteinlasses 4 des Sichters 3. Dabei kann die Breite von Förderwerk und Sichter beispielsweise wenigstens 2,5 m, 3 m, 3,5 m, oder 4 m betragen. Das Förderwerk kann selbstverständlich auch durch zwei oder mehrere quer zur Förderrichtung 15 unmittelbar nebeneinander angeordnete, entsprechend schmalere Förderwerke gebildet werden. As is apparent from Figures 1 and 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. In order to achieve an optimal width distribution of the goods to be seen in the task in the classifier 3, the width of the conveyor 2 substantially corresponds to the width of the Sichtguteinlasses 4 of the classifier 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.
Der Sichter 3 wird im Folgenden anhand der Fig. 3 näher beschrieben. Er besteht im Wesentlichen aus einem oberen Sichtraum 16, einem unteren Sichtraum 17 und dem schräg zur Horizontalen angeordneten Belüftungsboden 7, der die beiden Sichträume voneinander trennt. Der Belüftungsboden 7 ist als geneigte Ebene mit Belüftungsöffnungen oder als geneigter Lochboden ausgebildet. Die Öffnungen des Belüftungsbodens können über die gesamte Fläche verteilt unterschiedliche Öffnungsgeometrien aufweisen. Das hat den Vorteil, dass sowohl durch die Anordnung als auch die jeweilige Öffnungsgeometrie die Sichtgasverteilung, die Sichtgasgeschwindigkeit und die Sichtgasrichtung beeinflussbar sind, um eine optimale Durchströmung des Sichtgutes an jedem Punkt des Belüftungsbodens zu gewährleisten. Damit kann die Sichteffizienz weiter gesteigert werden. The classifier 3 will be described in more detail below with reference to FIG. 3. 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. This has the advantage that both the arrangement and the respective opening geometry the Sichtgasverteilung, the Sichtgasgeschwindigkeit and the Sichtgasrichtung can be influenced to ensure optimum flow through the visual material at each point of the ventilation floor. Thus, the visual efficiency can be further increased.
Der Sichtguteinlass 4 mündet in den oberen Sichtraum 16 im Bereich des oberen Endes des Belüftungsbodens 7, während am unteren Sichtraum 17 ein Sichtgaseinlass 18 zum Zuführen des Sichtgases 6 vorgesehen ist. Das Sichtgas strömt vom Sichtgaseinlass 18 nach oben und durch den Belüftungsboden 7. Das Sichtgut 5 wird somit im oberen Sichtraum 16 im Wesentlichen quer vom Sichtgas durchströmt, wobei das Grobgut über den am unteren Ende des Belüftungsbodens 7 angeordneten ersten Grobgutauslass 8 ausgeschleust wird. Das Feingut wird zusammen mit dem Sichtgas über den Feingutauslass 9 einem nachfolgend angeordneten dynamischen Sichter 19 zugeführt. Es bildet sich somit im oberen Sichtraum eine Querstromsichtzone aus, während im unteren Sichtraum eine Gegenstromsichtzone für das durch den Belüftungsboden hindurchfallende Sichtgut vorgesehen ist. Die Ausgestaltung des dynamischen Sichters 19 und das Zusammenspiel mit dem statischen Sichter ist beispielsweise aus der EP 1 786 573 Bl bekannt. The Sichtguteinlass 4 opens into the upper viewing space 16 in the region of the upper end of the ventilation floor 7, while at the lower Sichtraum 17 a Sichtgaseinlass 18 is provided for supplying the Sichtgas 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 substantially 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. It thus forms in the upper Sichtraum a Querstromsichtzone, while in the lower Sichtraum a Gegenstromsichtzone is provided for the falling through the aeration bottom Sichtgut. The design of the dynamic classifier 19 and the interaction with the static classifier is known, for example, from EP 1 786 573 B1.
Das Grobgut der Gegenstromsichtzone fällt nach unten auf einen geneigten Boden 20 des unteren Sichtraums 17, an dessen unterem Ende ein zweiter Grobgutauslass 21 für das Grobgut der Gegenstromsichtzone vorgesehen ist. Der Neigungswinkel des geneigten Bodens 20 ist zweckmäßigerweise größer als der Wandreibungswinkel des auszuschleusenden Grobgutes, damit sichergestellt ist, dass das Grobgut selbsttätig aus dem Sichter rutscht. The coarse material of the countercurrent sight zone falls down on an inclined bottom 20 of the lower Sichtraums 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.
Das Feingut der Gegenstromsichtzone wird entweder mit dem Sichtgas 6 durch den Belüftungsboden 7 gedrückt oder kann teilweise über einen am oberen Ende des unteren Sichtraums 17 vorgesehenen zweiten Feingutauslass 22 abgezogen und über eine Leitung 23 dem dynamischen Sichter 19 zugeführt werden. Über eine in der Leitung 23 angeordnete Klappe 24 wird der aus dem unteren Sich träum 17 abzuzweigende Teilstrom eingestellt, um dadurch auch die Sichtverhältnisse in der Quersichtzone im oberen Sichtraum 16 gezielt beeinflussen zu können. Eine über dieThe 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. About a arranged in the line 23 damper 24 is diverted from the lower dream 17 diverted sub-stream to thereby also affect the visibility in the transverse vision zone in the upper viewing space 16 targeted. One about the
Leitung 23 abgezogene Sichtgasmenge reduziert die durch den Belüftungsboden 7 strömende Sichtgasmenge entsprechend. Auf diese Weise kann die Sichtgasgeschwindigkeitsverteilung des statischen Sichters 3 für den dynamischen Sichter 19 optimiert werden, ohne dass der damit einhergehende Belüftungsbodendurchfall, d. h. das Gut, welches durch den Belüftungsboden fällt, den gesamten Prozess negativ beeinflussen kann. Line 23 withdrawn amount of sight gas reduces the amount of sight 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 associated aeration floor divergence, i. H. the good that falls through the aeration floor can adversely affect the entire process.
Wie aus den Figuren 1 und 2 deutlich hervorgeht, ist der Sichtguteinlass 4 auf der dem Förderwerk 2 zugewandten Seite des Sichters angeordnet, während der Sichtgaseinlass 18 für das Sichtgas 6 in einem vom Förderwerk abgewandten Bereich, hier auf der gegenüberliegenden Seite, an den Sichter 3 angeschlossen ist.As clearly shown in Figures 1 and 2, the Sichtguteinlass 4 is arranged on the conveyor 2 side facing the sifter, while the Sichtgaseinlass 18 for the classifying gas 6 in a region facing away from the conveyor, here on the opposite side, to the sifter. 3 connected.
Selbstverständlich ist es im Rahmen der Erfindung auch möglich, dass das Sichtgas über zwei oder mehrere Sichtgaseinlässe zugeführt wird. Dabei kommt insbesondere auch eine seitliche Zuführung in Betracht. Der Winkel zwischen der Ausrichtung des Sichtguteinlasses 4 und des Sichtgaseinlasses 18 sollte wenigstens 15° und höchstens 345° betragen, damit das Förderwerk 2 möglichst nahe am Sichter 3 angeordnet werden kann. Der Sichtgaseinlass 18 mit der angeschlossenen Sichtgasleitung 25 sollte daher nicht mit dem Förderwerk 2 in Konflikt kommen. Es muss insbesondere sichergestellt werden, dass die Transportrichtung des Fördergutes bis in den Sichter in gerader Linie (in der Draufsicht) verläuft und somit auch die Verbindung zwischen Förderwerk 2 und Sichtguteinlass 4 in gerader Linie angeordnet ist, um jegliche Materialumlenkungen, die zwangsläufig eine verschlechterte Breitenverteilung auf den Belüftungsboden bewirken, zu vermeiden. Of course, it is within the scope of the invention also possible that the classifying gas is supplied via two or more Sichtgaseinlässe. In particular, a lateral feed into consideration. The angle between the orientation of the Sichtguteinlasses 4 and the Sichtgaseinlasses 18 should be at least 15 ° and at most 345 ° so that the conveyor 2 can be arranged as close to the separator 3. The Sichtgaseinlass 18 with the connected sighting gas line 25 should therefore not come into conflict with the conveyor 2. In particular, it must be ensured that the transport direction of the conveyed material extends straight into the sifter (in plan view) and thus the connection between conveyor 2 and sifter inlet 4 is arranged in a straight line to any material deflections, which inevitably has a worsened width distribution on the aeration floor cause to avoid.
Die beiden Grobgutauslässe 8 und 21 ermöglichen ein uneingeschränktes Zurückführen des Grobgutes in den Mahl- und Sichtprozess. Der Belüftungsbodendurchfall stellt durch den zweiten Grobgutauslass 21 im unteren Sichtraum kein Problem mehr dar. Hierzu wird das über die Grobgutauslässe 8 und 21 des statischen Sichters 3 abgeführte Grobgut über ein zweites Förderwerk 26 nach oben gefördert, wobei das obere Ende über eine weitere Fördereinrichtung 27 mit dem Aufgabeschacht la der Walzenpresse 1 in Verbindung steht. Das zweite Förderwerk 26 wird zweckmäßigerweise wiederum als Becherwerk ausgebildet, wobei für die weitere Fördereinrichtung 27 ein Band- oder Gurtförderer in Betracht kommt. Im Bereich der weiteren Fördereinrichtung 27 ist ferner eine Metallausschleuseinrichtung 28 vorgesehen, über die etwaige aus dem Sichter fallende Metallteile vor der Walzenpresse 1 entfernt werden können, um dadurch eine Beschädigung oder Zerstörung der Walzenoberflächen zu vermeiden. Das Feingut 29 des dynamischen Sichters 19 wird zusammen mit dem Sichtgas einem Abscheider 30 zugeführt. 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 For this purpose, 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 la of the roll 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. In the area of the further conveying device 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.
Durch die erfindungsgemäße Anordnung von Walzenpresse, Förderwerk und Sichter kann die Bauhöhe deutlich reduziert werden. Darüber hinaus sind alle hohen Lasten nahe am Boden angeordnet, was auch eine einfachere Zugänglichkeit zu den einzelnen Maschinen bei Wartungsarbeiten ermöglicht. Weiterhin kann der Durchsatz durch den Einsatz von breiteren Sichtern gesteigert werden. Auch die geringeren Höhen der Förderwerke erhöhen die mechanische Sicherheit und ermöglichen dadurch höhere Umsätze. The inventive arrangement of roller press, conveyor and separator, the height can be significantly reduced. In addition, all high loads are located close to the ground, which also allows easier accessibility to the individual machines during maintenance. Furthermore, 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.

Claims

Patentansprüche claims
1. Mahlanlage mit einer Walzenpresse (1) zur Zerkleinerung von sprödem Mahlgut, die zwei gegenläufige Mahlwalzen umfasst, einem statischen Sichter (3) mit einem Sichtguteinlass (4) für frisches und/oder in der Walzenpresse (1) zerkleinertes Mahlgut (5), einem schräg zur Horizontalen angeordneten, von Sichtgas durchströmten Belüftungsboden (7), einem mit der Walzenpresse in Verbindung stehenden ersten Grobgutauslass (8) und einem Feingutauslass (9), und mit einem Förderwerk (2), das mit der Walzenpresse (1) und dem Sichtguteinlass (4) des Sichters (3) in Verbindung steht, um das frische und/oder in der Walzenpresse zerkleinerte Mahlgut (5) anzuheben, dadurch gekennzeichnet, dass die Walzenpresse (1), das Förderwerk (2) und der Sichter (3) baulich nebeneinander und in Materialflussrichtung in gerader Linie hintereinander angeordnet sind, der Sichtguteinlass (4) auf der dem Förderwerk (2) zugewandten Seite des Sichters (3) angeordnet ist, der Sichter (3) einen Sichtgaseinlass (18) für das Sichtgas (6) aufweist, der in einem vom Förderwerk (2) abgewandten Bereich an den Sichter (3) angeschlossen ist, wobei der Sichter (3) ferner zwei übereinander angeordnete und durch den Belüftungsboden (7) voneinander getrennte Sichträume (16, 17) aufweist, wobei der Sichtguteinlass (4) für das frische und/oder in der Walzenpresse zerkleinerte Mahlgut (5) in den oberen Sichtraum (16) mündet und der Sichtgaseinlass (18) an den unteren Sichtraum (17) angeschlossen ist, und wobei der erste Grobgutauslass (8) an den oberen Sichtraum (16) angeschlossen und der untere Sichtraum (17) mit einem zweiten Grobgutauslass (21) versehen ist. 1. Grinding plant with a roller press (1) for crushing brittle grinding material, comprising two counter-rotating grinding rollers, a static classifier (3) with a Sichtguteinlass (4) for fresh and / or in the roll press (1) comminuted millbase (5), a ventilation base (7) arranged obliquely to the horizontal, through which tracing gas flows, a first coarse material outlet (8) connected to the roller press and a fine material outlet (9), and a conveyor (2) connected to the roller press (1) and the Sichtguteinlass (4) of the classifier (3) is in communication to raise the fresh and / or comminuted in the roller press grinding material (5), characterized in that the roller press (1), the conveyor (2) and the separator (3) structurally arranged side by side and in the material flow direction in a straight line one behind the other, the Sichtguteinlass (4) on the conveyor (2) facing side of the classifier (3) is arranged, the classifier (3) a Sichtgaseinlass (18 ) for the classifying gas (6) which is connected to the sifter (3) in a region facing away from the conveyor (2), the classifier (3) further comprising two viewing spaces (16) arranged one above the other and separated by the aeration bottom (7) , 17), wherein the Sichtguteinlass (4) for the fresh and / or comminuted in the roll press grinding material (5) opens into the upper Sichtraum (16) and the Sichtgaseinlass (18) to the lower Sichtraum (17) is connected, and wherein the first Grobgutauslass ( 8) connected to the upper viewing space (16) and the lower viewing space (17) is provided with a second Grobgutauslass (21).
2. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass der Winkel zwischen der Ausrichtung des Sichtguteinlasses (4) und des Sichtgaseinlasses (18) wenigstens 15° und höchstens 345° beträgt. 2. grinding plant according to claim 1, characterized in that the angle between the orientation of the Sichtguteinlasses (4) and the Sichtgaseinlasses (18) is at least 15 ° and at most 345 °.
3. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass das Förderwerk (2) als Vertikalförderwerk, insbesondere als Becherwerk oder als schräg angestellter Gurtförderer, ausgebildet ist. 3. grinding plant according to claim 1, characterized in that the conveyor (2) is designed as a vertical conveyor, in particular as a bucket elevator or as an inclined belt conveyor.
4. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass das Förderwerk (2) ein unteres (2b) und ein oberes Ende (2a) aufweist, wobei das obere Ende (2a) mit dem Sichtguteinlass (4) des Sichters (3) über eine Schurre (10) in Verbindung steht. 4. grinding plant according to claim 1, characterized in that the conveyor (2) has a lower (2b) and an upper end (2a), wherein the upper end (2a) with the Sichtguteinlass (4) of the classifier (3) via a Schurre (10) communicates.
5. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass das Förderwerk (2) ein unteres (2b) und ein oberes Ende (2a) aufweist, wobei das obere Ende (2a) mit dem Sichtguteinlass (4) des Sichters (3) in Verbindung steht und das untere Ende (2b) über eine Fördereinrichtung (11) mit der Walzenpresse (1) und einer Frischgutaufgabe (12) verbunden ist. 5. grinding plant according to claim 1, characterized in that the conveyor (2) has a lower (2b) and an upper end (2a), wherein the upper end (2a) with the Sichtguteinlass (4) of the classifier (3) in connection is and the lower end (2b) via a conveyor (11) with the roller press (1) and a Frischgutaufgabe (12) is connected.
6. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Sichtraum (17) einen schrägen Boden (20) aufweist, an dessen unterem Ende der zweite Grobgutauslass (21) angeordnet ist. 6. grinding plant according to claim 1, characterized in that the second viewing space (17) has an inclined bottom (20), at the lower end of the second Grobgutauslass (21) is arranged.
7. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass der Feingutauslass (9) mit einem dynamischen Sichter (19) derart in Verbindung steht, dass das Feingut des statischen Sichters (3) zusammen mit der Sichtluft in den dynamischen Sichter (19) gelangt. 7. Mahlanlage according to claim 1, characterized in that the fine material outlet (9) with a dynamic separator (19) is in communication that the Fine material of the static classifier (3) passes together with the classifying air in the dynamic classifier (19).
8. Mahlanlage nach Anspruch 7, dadurch gekennzeichnet, dass der statische (3) und der dynamische Sichter (19) in einem gemeinsamen Sichtergehäuse untergebracht sind. 8. Mahlanlage according to claim 7, characterized in that the static (3) and the dynamic classifier (19) are housed in a common classifier housing.
9. Mahlanlage nach Anspruch 7, dadurch gekennzeichnet, dass der dynamische Sichter (19) mit einer nachfolgend angeordneten Abscheidevorrichtung (30) in Verbindung steht. 9. grinding plant according to claim 7, characterized in that the dynamic classifier (19) with a subsequently arranged separating device (30) is in communication.
10. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass ein zweites Förderwerk (26) vorgesehen ist, das mit den Grobgutauslässen (8, 21) des statischen Sichters (3) und der Walzenpresse (1) in Verbindung steht. 10. grinding plant according to claim 1, characterized in that a second conveyor (26) is provided, which communicates with the Grobgutauslässen (8, 21) of the static separator (3) and the roller press (1).
11. Mahlanlage nach Anspruch 10, dadurch gekennzeichnet, dass das zweite Förderwerk (26) ein unteres und ein oberes Ende aufweist, wobei das untere Ende mit den Grobgutauslässen (8, 21) des statischen Sichters (3) und das obere Ende über eine Fördereinrichtung (27) mit der Walzenpresse (1) in Verbindung steht. 11. grinding plant according to claim 10, characterized in that the second conveyor (26) has a lower and an upper end, wherein the lower end with the Grobgutauslässen (8, 21) of the static separator (3) and the upper end via a conveyor (27) communicates with the roller press (1).
12. Mahlanlage nach Anspruch 11, dadurch gekennzeichnet, dass im Bereich der zur Walzenpresse (1) führenden Fördereinrichtung (27) eine Metallausschleuseinrichtung (28) vorgesehen ist. 12. grinding plant according to claim 11, characterized in that in the region of the roller press (1) leading to the conveyor (27) is provided a Metallausschleuseinrichtung (28).
13. Mahlanlage nach Anspruch 1, dadurch gekennzeichnet, dass die Breite des Förderwerks (2) im Wesentlichen der Breite des Sichtguteinlasses (4) des Sichters (3) entspricht. 13. grinding plant according to claim 1, characterized in that the width of the conveyor (2) corresponds substantially to the width of the Sichtguteinlasses (4) of the classifier (3).
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110981A1 (en) * 2013-10-02 2015-04-02 Thyssenkrupp Industrial Solutions Ag A method of operating a plant having at least one aggregate having a rotating surface
PL232821B1 (en) * 2013-11-26 2019-07-31 Czech Adam Przed Obrotu Surowcami Wtornymi Hermex Equipment for cleaning and grain classification of small metallurgical discards and method of cleaning and grain classification of small metallurgical discards
DE102015203856A1 (en) 2015-03-04 2016-12-15 Thyssenkrupp Ag Vertical roller mill
CN106111284B (en) * 2016-08-19 2018-10-09 天津市博爱制药有限公司 A kind of multifunctional crusher
CN106669888A (en) * 2017-01-10 2017-05-17 罗干年 Efficient roller pressing grinding station and technique thereof
CA3079989C (en) 2017-12-04 2023-03-28 Goldcorp Inc. Low energy process for metal extraction
CN109095032A (en) * 2018-08-02 2018-12-28 陈健 Classified-refuse recovery system
CN112620085B (en) * 2020-12-29 2021-12-21 中铁二十四局集团西南建设有限公司 Building engineering circulation screening sand device
CN114308361B (en) * 2022-01-17 2023-04-07 江苏鹏飞集团股份有限公司 Internal screening circulating roller press
CN115041260B (en) * 2022-06-14 2023-04-21 重庆市国信医药有限公司 Preparation process of ganoderma lucidum spore powder

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1002504A (en) * 1909-02-06 1911-09-05 Thomas A Edison Crushing and separating fine materials.
DE3302176A1 (en) 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD AND SYSTEM FOR CONTINUOUS PRESSURE REDUCTION OF SPROEDEN GROUND MATERIAL
DE3843338A1 (en) * 1988-12-22 1990-06-28 Krupp Polysius Ag SAFE
DE4223762B4 (en) * 1992-07-18 2009-07-23 Khd Humboldt Wedag Gmbh Classifying device for sifting granular material and circulation grinding plant with the involvement of such a sifting device
JP2579885B2 (en) 1993-10-15 1997-02-12 川崎重工業株式会社 Pulverizing method, pulverizing device and classifier for powder material
DE4337215A1 (en) 1993-10-30 1995-05-04 Kloeckner Humboldt Deutz Ag Circulating grinding plant
EP0912369B1 (en) * 1996-07-26 2003-05-14 CASCADE ENGINEERING, Inc. System for fastening sheet materials together
SG71081A1 (en) 1998-01-26 2000-03-21 Ssangyong Cement Singapore Ltd Roller press grinding plant
US6820829B1 (en) 2000-02-25 2004-11-23 Exportech Company, Inc. Method and apparatus for separating material
DE10221739A1 (en) 2002-05-16 2003-12-04 Kloeckner Humboldt Wedag Circular grinding plant with mill and sifter
CN2808292Y (en) 2004-10-10 2006-08-23 刘长福 Ferroalloy crushing device
DE102005045591A1 (en) 2005-09-23 2007-03-29 Polysius Ag Raw material e.g. granular material, separating device for use in grinding plant, has static separator with aeration base through which gas flows, where base is arranged in vertical direction and has specific ratio of breadth to height
DE202010009150U1 (en) * 2010-06-16 2010-08-26 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage with integrated buffer
CN101947490B (en) 2010-09-30 2014-04-16 成都利君实业股份有限公司 Method for rolling and grinding by high pressure roller press for fine chemical engineering

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AU2013328753B2 (en) 2017-05-04
CN104853847A (en) 2015-08-19
US20150258576A1 (en) 2015-09-17
BR112015007989A2 (en) 2017-07-04
DE102012109644B4 (en) 2016-02-11
AU2013328753A1 (en) 2015-04-30
IN2015DN03737A (en) 2015-09-18
MX2015004405A (en) 2015-09-25
DE102012109644A1 (en) 2014-05-15
CA2887631A1 (en) 2014-04-17
DK2906349T3 (en) 2016-11-28
EP2906349B1 (en) 2016-08-03
US9630214B2 (en) 2017-04-25
MX355558B (en) 2018-04-23
CL2015000888A1 (en) 2015-11-06
CA2887631C (en) 2020-01-07
PE20151160A1 (en) 2015-08-29
CN104853847B (en) 2017-09-08
WO2014056974A1 (en) 2014-04-17

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