EP0628348B1 - Vertical pulveriser with a regulating device for the entry section - Google Patents
Vertical pulveriser with a regulating device for the entry section Download PDFInfo
- Publication number
- EP0628348B1 EP0628348B1 EP94890091A EP94890091A EP0628348B1 EP 0628348 B1 EP0628348 B1 EP 0628348B1 EP 94890091 A EP94890091 A EP 94890091A EP 94890091 A EP94890091 A EP 94890091A EP 0628348 B1 EP0628348 B1 EP 0628348B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vertical
- pulveriser
- crusher
- rotor
- dust
- 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
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1835—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed in between an upper and lower rotor disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C2013/1885—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate of dead bed type
Definitions
- the invention relates to a vertical crusher with a device for controlling a Inlet into the crusher chamber of the same according to the preamble of the claim.
- a vertical crusher of this type has become known from US-A 4 065 063.
- the shut-off device is designed as a valve, which consists of a pair opposite there is pivotable plates that are under the influence of preloaded springs.
- a hammer mill is known in which the task is a high utilization of the performance of the impact mill by adjusting the To achieve fineness, the solution being the adjustability of the gap width during the Operation is proposed.
- the known impact mill has a truncated cone Feed hopper on which is fixed in a truncated cone-shaped shell, which one cylindrical connecting piece of a side part of the upper housing part of the grinding cell.
- the Spigot has an inner jacket that serves to guide a cylindrical adjusting sleeve a lever is attached which penetrates a slot of the nozzle and that Swiveling the sleeve in the jacket to adjust the coverage of a window and allows a recess, whereby the amount of the good is metered by the leftover opening can go.
- This facility can neither alone nor in Solve the aforementioned problem in connection with the first-mentioned construction.
- a grist mill has become known in which Setting the desired supply quantity and also to shut off the dosing device a slide is provided which is parallel to the plane of the shredding tool is guided. The inlet is arranged to the side of the rotor axis.
- This too Device can do that alone or in conjunction with the former construction solve the mentioned problem satisfactorily.
- FR-A-1 054 714 is a device with one in a crusher chamber by one vertical axis rotatable rotor and a storage container, the Inlet opening is provided with a controllable shut-off device.
- the rotor has a cambered upper surface on which the material to be shredded is introduced from the storage container and by radial, about vertical axes swiveling blow bars are thrown against a grille, which by one annular outlet channel is enclosed, from which the material in a below the rotor located funnel is discharged.
- This device is not suitable for grinding a hard good, such as stones or the like, and therefore cannot solve the problem posed alone solve satisfactorily in connection with the first mentioned construction.
- the object of the invention is to provide measures which reduce the crushing of hard Goods such as stones enable and prevent unnecessary air from being sucked in by the crusher and leads to dust formation.
- the vertical crusher shown in the drawing has a storage container 1, which in is essentially funnel-shaped and preferably by a not shown Conveyor belt or a, if necessary regulating channel is loaded.
- the reservoir 1 is on a central inlet 2 of an essentially cylindrical crusher chamber 3 connected, in which one of the inlet 2 in the middle about the central axis X-X rotating rotor 4, which is driven by an underlying motor, rotates.
- Rotor 4 has a central inlet from which the material in the direction of arrows B in internal channels 14 of the rotor 4, in which the material to be broken accelerates becomes what it is on a baffle and subsequently on the baffle accumulating good is broken.
- This cementing layer on the baffle becomes thick until the material refracting on this layer passes through an opening 7 in an underlying chamber 6 falls. Also collects on the walls of the channels 14 Dust of the crushed material and forms a hard protective layer. That on the outer as baffle plates Trained walls of the crusher chamber 3 can accumulate in some cases Maintenance work on the system or for other purposes, e.g. blown out or by hand be removed.
- the inlet 2 remains due to the incoming material always closed.
- the size of the inlet 2 of the storage container 1, from which the crushing material introduced into the vertical crusher is by at least one controllable shut-off device adjustable.
- the motor 5 for the crusher rotor 4 is in the Chamber 6.
- the material arrives from chamber 6 via an annular funnel 8 a collection point.
- the size of the inlet 2 is controlled by at least one slide 10 in in the present case there are two slides 10 ', 10' 'which overlap in the middle. On Instead of such slides, any other type of shut-off device can occur.
- the slide 10 is closed.
- the vertical crusher will switched on.
- the belt or the trough for loading the storage container 1 is switched on.
- the slide opens intermittently until the motor of the vertical crusher approx. 95% of the Has reached the rated current.
- the task is reduced in cycles when the probe determines the maximum fill level III and the nominal motor current has increased by more than 95%.
- the loading system e.g. the conveyor belt or the gutter is put out of operation, whereupon the probe 11, the slide 10 when the Material closes at level II, then the entire system is shut down.
- This system is mainly used when there is a possibility that Regulate the amount of feed Material e.g. to withdraw from a bunker. This allows the Vertical crushers are always kept in the full load range and thus the crushing remains always almost the same. Another area of application is when the feed quantity varies or cannot be kept constant.
Abstract
Description
Die Erfindung betrifft einen Vertikalbrecher mit einer Vorrichtung zur Regelung eines Einlaufes in die Brecherkammer desselben nach dem Oberbegriff des Patentanspruches.The invention relates to a vertical crusher with a device for controlling a Inlet into the crusher chamber of the same according to the preamble of the claim.
Ein Vertikalbrecher dieser Art ist durch die US-A 4 065 063 bekannt geworden. Bei diesem Brecher ist das Absperrorgan als Ventil ausgebildet, das aus einem Paar gegenüberliegenden schwenkbaren Platten besteht, die unter dem Einfluß vorgespannter Federn stehen. Durch diese Maßnahme wird die der Patentschrift zugrundeliegende Aufgabe, den Eintritt von Luft in das Innere des Brechers zu beschränken und dadurch das Aufwirbeln von Staub aus dem ausfließenden Gut zu minimieren, nur unzureichend gelöst.A vertical crusher of this type has become known from US-A 4 065 063. With this Crusher, the shut-off device is designed as a valve, which consists of a pair opposite there is pivotable plates that are under the influence of preloaded springs. By this measure becomes the task on which the patent specification is based, the entry of air to limit the inside of the crusher and thereby whirl up dust from the to minimize outflowing material, only insufficiently solved.
Durch die DE-A-2 639 888 ist eine Schleudermühle bekannt geworden, bei welcher ein seitlich zur Drehachse des Rotors angeordneter Beschickungstrichter vorgesehen ist, welcher eine mittels eines äußeren Handgriffes betätigbare Dosierklappe aufweist. Diese Konstruktion würde auch in Verbindung mit der vorangehenden Konstruktion das zuvor erwähnte Problem der Staubentwicklung nicht lösen.From DE-A-2 639 888 a centrifugal mill is known, in which a Feed hopper arranged laterally to the axis of rotation of the rotor is provided, which has a metering flap which can be actuated by means of an outer handle. This construction would also, in connection with the foregoing construction, the aforementioned problem not solve the dust development.
Durch die DE-B 1 142 268 ist eine Schlagmühle bekannt geworden, bei welcher die Aufgabe gestellt ist, eine hohe Ausnutzung der Leistung der Schlagmühle durch Einstellung der Mahlfeinheit zu erzielen, wobei als Lösung die Einstellbarkeit der Spaltweite während des Betriebes vorgeschlagen wird. Die bekannte Schlagmühle weist einen kegelstumpfförmigen Zufuhrtrichter auf der in einem kegelstumpfförmigen Mantel befestigt ist, welcher einen zylindrischen Stutzen eines Seitenteils des Gehäuseoberteils der Mahlzelle abschließt. Der Stutzen weist einen Innenmantel auf, der zur Führung einer zylindrischen Stellmuffe dient, an der ein Hebel befestigt ist, welcher einen Schlitz des Stutzens durchdringt und das Verschwenken der Muffe in dem Mantel zur Einstellung der Überdeckung eines Fensters und einer Ausnehmung ermöglicht, wodurch die Menge des Gutes dosiert wird, welche durch die übriggebliebene Öffnung gehen kann. Auch diese Einrichtung kann weder allein noch in Verbindung mit der erstgenannten Konstruktion das erwähnte Problem lösen.From DE-B 1 142 268 a hammer mill is known in which the task is a high utilization of the performance of the impact mill by adjusting the To achieve fineness, the solution being the adjustability of the gap width during the Operation is proposed. The known impact mill has a truncated cone Feed hopper on which is fixed in a truncated cone-shaped shell, which one cylindrical connecting piece of a side part of the upper housing part of the grinding cell. Of the Spigot has an inner jacket that serves to guide a cylindrical adjusting sleeve a lever is attached which penetrates a slot of the nozzle and that Swiveling the sleeve in the jacket to adjust the coverage of a window and allows a recess, whereby the amount of the good is metered by the leftover opening can go. This facility can neither alone nor in Solve the aforementioned problem in connection with the first-mentioned construction.
Durch die DE-A 2 912 393 ist eine Schrotmühle bekannt geworden, bei welcher zur Einstellung der gewünschten Zufuhrmenge und auch zum Absperren der Dosiereinrichtung ein Schieber vorgesehen ist, welcher parallel zur Ebene des Zerkleinerungswerkzeuges verschiebbar geführt ist. Hiebei ist der Einlauf seitlich der Rotorachse angeordnet. Auch diese Vorrichtung kann weder allein noch in Verbindung mit der erstgenannten Konstruktion das erwähnte Problem zufriedenstellend lösen.From DE-A 2 912 393 a grist mill has become known in which Setting the desired supply quantity and also to shut off the dosing device a slide is provided which is parallel to the plane of the shredding tool is guided. The inlet is arranged to the side of the rotor axis. This too Device can do that alone or in conjunction with the former construction solve the mentioned problem satisfactorily.
Durch die FR-A-1 054 714 ist eine Vorrichtung mit einem in einer Brecherkammer um eine lotrechte Achse drehbaren Rotor und einem Vorlagebehälter bekanntgeworden, dessen Einlauföffnung mit einem steuerbaren Absperrorgan versehen ist. Bei dieser Vorrichtung ist der Rotor mit einer bombierten oberen Fläche versehen, auf welche das zu zerkleinernde Gut aus dem Vorlagebehälter eingebracht wird und durch radiale, um lotrechte Achsen schwenkbare Schlagleisten gegen ein Gitter geschleudert werden, welches von einem ringförmigen Auslaufkanal umschlossen ist, aus dem das Gut in einen unterhalb des Rotors befindlichen Trichter abgeführt wird. Diese Vorrichtung eignet sich nicht zur Vermahlung eines harten Gutes, wie Steinen oder dgl. und kann daher das gestellte Problem weder allein noch in Verbindung mit der erstgenannten Konstruktion zufriedenstellend lösen.FR-A-1 054 714 is a device with one in a crusher chamber by one vertical axis rotatable rotor and a storage container, the Inlet opening is provided with a controllable shut-off device. In this device is the rotor has a cambered upper surface on which the material to be shredded is introduced from the storage container and by radial, about vertical axes swiveling blow bars are thrown against a grille, which by one annular outlet channel is enclosed, from which the material in a below the rotor located funnel is discharged. This device is not suitable for grinding a hard good, such as stones or the like, and therefore cannot solve the problem posed alone solve satisfactorily in connection with the first mentioned construction.
Aufgabe der Erfindung ist die Schaffung von Maßnahmen, welche das Zerkleinern von harten Gütern, wie Steinen ermöglichen und verhindern, daß unnötige Luft vom Brecher angesaugt wird und zur Staubentwicklung führt.The object of the invention is to provide measures which reduce the crushing of hard Goods such as stones enable and prevent unnecessary air from being sucked in by the crusher and leads to dust formation.
Diese Aufgabe wird bei einem Vertikalbrecher der eingangs erwähnten Art erfindungsgemäß durch die Merkmale nach dem kennzeichnenden Teil des Patentanspruches gelöst.This object is achieved according to the invention in a vertical crusher of the type mentioned at the outset solved by the features according to the characterizing part of the claim.
Durch die Anordnung von nach außen verlaufenden Kanälen im Inneren des Rotors wird an den Wänden derselben ein Teil des durch das Brechen des Gutes in diesen Kanälen an den Wänden derselben Staub abgesetzt, sodaß diese Kanäle in Verbindung mit einer vollautomatischen Mengenregelung die Staubbildung beim Brechen des Gutes wesentlich vermindern.Due to the arrangement of outwardly extending channels inside the rotor becomes on the walls of it a part of by breaking the goods in these channels dust on the walls of the same, so that these channels in connection with a fully automatic flow control the dust formation when breaking the material is essential Reduce.
Die Erfindung wird an Hand der angeschlossenen Zeichnung erläutert, in welcher in vereinfachter Ausführung ein Querschnitt der Anlage mit einer Sondersteuerung dargestellt ist.The invention is explained with reference to the attached drawing, in which In a simplified version, a cross section of the system is shown with a special control is.
Der in der Zeichnung dargestellte Vertikalbrecher besitzt einen Vorlagebehälter 1, welcher im
wesentlichen trichterförmig ausgebildet ist und vorzugsweise durch ein nicht dargestelltes
Förderband oder eine, allenfalls regelnder Rinne beschickt wird. Der Vorlagebehälter 1 ist an
einem zentralen Einlauf 2 einer im wesentlichen zylindrischen Brecherkammer 3
angeschlossen, in welcher ein vom Einlauf 2 mittig beschickter um die Mittelachse X-X
rotierender Rotor 4, der von einem darunter befindlichen Motor angetrieben ist, rotiert. Der
Rotor 4 hat einen zentralen Einlaß, aus welchem das Gut in Richtung der Pfeile B in
innenliegende Kanäle 14 des Rotors 4 gelangt, in welchen das zu brechende Gut beschleunigt
wird, worauf es an einer Prallwand und in der Folge an dem sich an der Prallwand
ansammelnden Gut gebrochen wird. Diese sich zementierende Schicht an der Prallwand
erlangt eine Dicke, bis das an dieser Schicht sich brechende Material durch eine Öffnung 7 in
eine darunterliegende Kammer 6 fällt. An den Wänden der Kanäle 14 sammelt sich ebenfalls
Staub des Brechgutes und bildet eine harte Schutzschicht. Das an den äußeren als Prallplatten
ausgildeten Wänden der Brecherkammer 3 angesammelte Gut kann fallweise bei
Wartungsarbeiten der Anlage oder zu anderen Zwecken, z.B. ausgeblasen oder händisch
entfernt werden. Während des Betriebes bleibt der Einlauf 2 durch das einlaufende Material
stets verschlossen. Die Größe des Einlaufes 2 des Vorlagebehälters 1, aus welchem das zu
zerkleinernde Gut in den Vertikalbrecher eingeführt wird, ist durch mindestens ein
steuerbares Absperrorgan regelbar. Der Motor 5 für den Brecherrotor 4 befindet sich in der
Kammer 6. Aus der Kammer 6 gelangt das Material über einen ringförmigen Trichter 8 zu
einer Sammelstelle. The vertical crusher shown in the drawing has a
Die Größe des Einlaufes 2 wird durch mindestens einen Schieber 10 gesteuert, im
vorliegenden Falle sind es zwei Schieber 10', 10'', welche sich in der Mitte überlappen. An
Stelle solcher Schieber kann auch ein beliebig anders ausgeführtes Absperrorgan treten. Diese
Schieber 10', 10'' werden automatisch durch eine Sonde gesteuert, wobei allenfalls nur einer
der beiden Schieber gesteuert wird.The size of the
Bei der Ausführungsform der Anlage nach der Figur wird mindestens einer der Schieber 10',
10'' durch mindestens eine Sonde 11 geregelt, welche den Querschnitt des durch die Schieber
10', 10'' freigegebenen Einlaufes 2 für das zu zerkleinernde Material in der Form regelt, daß
das im Vorlagebehälter 1 befindliche Material stets den Einlauf verschließt.In the embodiment of the system according to the figure, at least one of the slides 10 ',
10 '' regulated by at least one
In der Figur sind drei für die Steuerung charakteristische Materialmengen im Vorlagebehälter
1 angedeutet. I und II sind Minimalfüllstände der Materialmenge und III ist ein Maximalstand
des Füllmaterials.In the figure there are three material quantities characteristic of the control in the
Um den Vertikalbrecher im optimalen Nennbereich zu betreiben, ist eine Regelfunktion bei
ausreichender Materialmenge im Vorlagebhälter 1 erforderlich.In order to operate the vertical crusher in the optimal nominal range, a control function is included
sufficient amount of material in the
Beim Start der Anlage ist der Schieber 10 geschlossen. Der Vertikalbrecher wird
eingeschaltet. Das Band oder die Rinne zur Beschickung des Vorlagebehälters 1 wird
eingeschaltet. Sobald der Füllstand den Bereich III erreicht hat, was durch eine Sonde
angezeigt wird, öffnet der Schieber taktweise bis der Motor des Vertikalbrechers ca. 95 % des
Nennstroms erreicht hat.At the start of the system, the
Wenn die Füllmenge den Bereich I erreicht hat, wird die Aufgabe taktweise erhöht.When the filling quantity has reached range I, the task is increased in cycles.
Die Aufgabe wird taktweise reduziert, wenn die Sonde den maximalen Füllstand III ermittelt hat und der Motornennstrom über 95 % gestiegen ist.The task is reduced in cycles when the probe determines the maximum fill level III and the nominal motor current has increased by more than 95%.
Solange der Motornennstrom zwischen z.B. 80 und 95 % pendelt, wird keine Regelung vorgenommen. As long as the nominal motor current between e.g. 80 and 95% commutes, no regulation performed.
Soll die Anlage abgestellt werden, wird die Beschickungsanlage, z.B. das Förderband oder
die Rinne außer Betrieb gestellt, worauf die Sonde 11 den Schieber 10 bei Erreichen des
Materials bei Füllstand II schließt, hierauf wird die gesamte Anlage stillgesetzt.If the system is to be shut down, the loading system, e.g. the conveyor belt or
the gutter is put out of operation, whereupon the
Diese Anlage kommt hauptsächlich dann zum Einsatz, wenn die Möglichkeit besteht, die Aufgabemenge zu regeln d.h. Material z.B. aus einem Bunker abzuziehen. Dadurch kann der Vertikalbrecher immer im Vollastbereich gehalten werden und somit bleibt die Zerkleinerung immer annähernd gleich. Ein weiterer Einsatzbereich besteht, wenn die Aufgabemenge variiert bzw. nicht konstant gehalten werden kann.This system is mainly used when there is a possibility that Regulate the amount of feed Material e.g. to withdraw from a bunker. This allows the Vertical crushers are always kept in the full load range and thus the crushing remains always almost the same. Another area of application is when the feed quantity varies or cannot be kept constant.
Claims (1)
- A vertical crusher comprising a means for controlling the intake (2) into the crusher chamber (3) of the same, a rotor (4) rotatable about a vertical axis and throwing laterally the material introduced for disintegration, and an intake (2) running into the crusher housing centrally to the rotor axis into the crusher chamber above the crusher and capable of being controlled in size by at least one locking element (10, 10', 10''), said rotor being provided with internally arranged channels (14) extending outwardly for accelerating against a rebounding wall the material to be crushed, characterized in that the intake (2) is connected with a funnel-shaped collecting tank and that the locking element is controllable by a probe (11) controlling the size of the opening of the locking element (10, 10', 10'') as a function of the amount of material present in the collecting tank (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1122/93 | 1993-06-09 | ||
| AT112293 | 1993-06-09 | ||
| AT0112293A AT400410B (en) | 1993-06-09 | 1993-06-09 | DEVICE FOR CONTROLLING AN INLET AT A VERTICAL BREAKER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0628348A2 EP0628348A2 (en) | 1994-12-14 |
| EP0628348A3 EP0628348A3 (en) | 1995-03-22 |
| EP0628348B1 true EP0628348B1 (en) | 1999-09-01 |
Family
ID=3507063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94890091A Expired - Lifetime EP0628348B1 (en) | 1993-06-09 | 1994-05-30 | Vertical pulveriser with a regulating device for the entry section |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0628348B1 (en) |
| AT (2) | AT400410B (en) |
| DE (1) | DE59408677D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012098292A1 (en) | 2011-01-17 | 2012-07-26 | Metso Minerals, Inc. | Adjusting apparatus, adjusting system, crusher, crushing plant and method for adjusting the crusher |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433947A (en) * | 2019-08-29 | 2019-11-12 | 中国建材国际工程集团有限公司 | A kind of enclosed slope board falling device |
| CN211755773U (en) * | 2020-03-04 | 2020-10-27 | 福建省铁拓机械股份有限公司 | Stripping equipment for waste asphalt mixture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1054714A (en) * | 1952-04-21 | 1954-02-12 | Universal Vertical Axis Hammer Mill | |
| DE1142268B (en) * | 1958-11-13 | 1963-01-10 | Law Ets | Hammer mill with an adjustable annular gap between the edge of the rotor disk and the conical housing wall, which determines the fineness of the grinding |
| DK136202B (en) * | 1975-09-08 | 1977-09-05 | Saeby Jernstoberi Maskin | Knife mill. |
| US4065063A (en) * | 1976-07-06 | 1977-12-27 | El-Jay, Inc. | Impact crusher |
| DE2912393A1 (en) * | 1979-03-29 | 1980-10-09 | Grossenberger Josef Maschf | Grain crushing mill assembly - has rotor on vertical shaft carrying impact elements with forked ends |
| GB2214106B (en) * | 1987-12-24 | 1991-06-26 | Smidth & Co As F L | Vertical roller mill |
-
1993
- 1993-06-09 AT AT0112293A patent/AT400410B/en not_active IP Right Cessation
-
1994
- 1994-05-30 DE DE59408677T patent/DE59408677D1/en not_active Expired - Lifetime
- 1994-05-30 EP EP94890091A patent/EP0628348B1/en not_active Expired - Lifetime
- 1994-05-30 AT AT94890091T patent/ATE183949T1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012098292A1 (en) | 2011-01-17 | 2012-07-26 | Metso Minerals, Inc. | Adjusting apparatus, adjusting system, crusher, crushing plant and method for adjusting the crusher |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59408677D1 (en) | 1999-10-07 |
| EP0628348A3 (en) | 1995-03-22 |
| ATA112293A (en) | 1995-05-15 |
| EP0628348A2 (en) | 1994-12-14 |
| AT400410B (en) | 1995-12-27 |
| ATE183949T1 (en) | 1999-09-15 |
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