EP1372858B1 - Device for supplying a material - Google Patents
Device for supplying a material Download PDFInfo
- Publication number
- EP1372858B1 EP1372858B1 EP02737910A EP02737910A EP1372858B1 EP 1372858 B1 EP1372858 B1 EP 1372858B1 EP 02737910 A EP02737910 A EP 02737910A EP 02737910 A EP02737910 A EP 02737910A EP 1372858 B1 EP1372858 B1 EP 1372858B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strap belt
- conveyor
- double
- vertical mill
- belt
- 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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- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000003801 milling Methods 0.000 claims abstract 7
- 238000007789 sealing Methods 0.000 claims description 23
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 241000761557 Lamina Species 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 241000273930 Brevoortia tyrannus Species 0.000 description 3
- 239000000109 continuous material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
Definitions
- the invention relates to a device for feeding Material in a vertical mill with air flow promotion according to the preamble of the claim 1.
- the invention is in particular for the material feed of containers and devices suitable in which the material stored, processed or processed at negative or positive pressure becomes.
- a preferred area of application are grinding plants in which Raw material vertical mills with air flow conveyance, for example Airflow roller mills, with the help of conveyors and fed to a feeder for grinding becomes.
- Fig. 1 shows a partial view of a grinding plant 2 in the area an airflow roller mill as a vertical mill 6 with Air flow promotion.
- a feeding device for the material to be shredded Grist which consists of a silo 37 of a conveyor 43 is supplied is a cellular wheel sluice 45 used.
- the rotary valve 45 is above one Classifying ceiling 46 of the vertical mill 6 arranged.
- the regrind (not shown) passes through an inlet chute 47 in the grinding chamber 12 of the vertical mill 6.
- Fig. 1 illustrates the considerable building height, the necessary structural engineering System parts and the length of the conveyor 43, which increase the total cost of the grinding plant.
- From AT-PS 400 684 is a device for feeding Raw coal to a pressurized mill is known.
- the feeder Around the pressure shock resistant parts to a minimum restrict, the feeder has a silo a first delivery line, then a feed bunker, a second delivery line, an intermediate bunker and a third Delivery line on.
- the third conveyor line is a trough chain conveyor, which serves as an allocation organ and complete is arranged in a pressure shock-proof housing. About one that ends in the middle of the classifier's ceiling of the mill The raw coal enters the feed shaft from the third delivery line to the mill.
- the entire feeder points due to the stacked bunkers and horizontal arranged, three delivery lines a relatively large height and requires a corresponding investment, Assembly and energy expenditure.
- An elevator conveyor for bulk goods with two endless Conveyor belts that lie against each other at their longitudinal edges and at least one of them in a vertical area runs inside an air box; is from DE 27 26 038 C2 known.
- the conveyor belts are attached to the air box Sealing strips and prestressing means are provided.
- a double belt conveyor is known from DE 34 32 553 A1.
- the shroud belt has longitudinal and transverse reinforcements on, between which indentations for admission of the goods to be funded.
- the dents or funding areas are on the other side of the second flat belt of the conveyor belt completed.
- continuous Longitudinal guides consist of U-shaped steel profile sections and provide the necessary seals of the funding areas.
- the invention has for its object to provide a device for feeding material into a container, in particular raw material to be comminuted in a vertical mill, which has a particularly simple and cost-saving design, an optimized material task with a lower overall height of the system and reduced control technology Effort and an efficient grinding and classifying process.
- a basic idea of the invention can be seen in as a feeding device, which is used to hold an end region a conveyor for the feed Material trained and with the recorded End area of the conveyor in the printing system a vertical mill with air flow conveyance, is included, a sandwich lock and as a conveyor a double belt conveyor with a double belt insert and the sandwich lock for side feeding and feeding the material in the area of a feed opening the housing of the vertical mill to arrange.
- Material locks such as the two-flap or three-flap locks or cellular wheel locks, no longer required and significant cost savings in the area of construction, the mechanical equipment and related electrical equipment reached.
- the device according to the invention permits lateral feeding and feeding of the Materials which saved about 7 to 8 m building height can be. Other advantages are with the particular airtight, continuous material conveying and feeding connected with the help of the double belt conveyor, whereby promoting horizontally, vertically and / or obliquely in each Tilt angle can be done.
- a discontinuous material input is done with the conveyor task unit according to the invention a continuous material flow entry realizable. This results in opportunities for optimization a plant and especially a grinding and classifying process in a grinding plant, which leads to a reduction in energy consumption and to significant advantages in ecological Respect.
- the sandwich lock is preferably with a gas and / or pressure-tight housing formed, which back of a container wall or a mill housing and via a feed opening with the grinding and / or The mill's visual space is connected.
- the end area of the double belt conveyor reaching into the sandwich lock has pulleys for the lower and upper webbing.
- the deflection drums are expedient complementary to the straps and such staggered in the sandwich lock that the Upper belt strap for releasing the material in the conveyor is arranged in front of the lower pulley.
- the lower pulley serves as a dropping device for the Material and is so to the feed opening in the container or arranged in the vertical mill that the material into the feed opening and the container or the vertical mill arrives.
- Labyrinth seals are expedient for the return upper webbing and for the returning lower webbing intended.
- the one located between the slot openings Through opening is advantageously at least in an upper sealing area to adapt to a different arched upper webbing height adjustable educated.
- sealing lamellae can be provided be which resilient or dragging on the upper webbing of the double webbing can be pressed.
- the lower Belt strap is expediently relatively stable and with one constant trough for receiving the material. To also with the redirected and returned lower Webbing to maintain the trough-shaped formation it makes sense to arrange support rollers accordingly.
- a labyrinth seal can be arranged.
- the passage opening and the lower and the upper Slot opening can be made regardless of the seals used complementary to the cross section of the double webbing as well as the deflected lower and upper webbing his. It is particularly advantageous that through the Use of a double webbing and a sandwich lock the raw material falling freely in the area of a feed opening or fed to the container or grinding chamber can be. This can be done through an adjustable speed of the double webbing depending on the distance the raw material from the lower guide drum from the feed opening go directly to the middle of the mill.
- the main advantages of the device according to the invention are less technical and machine-based Expenses for material supply due to the arrangement the sandwich lock above the grinding rollers in a side Area of the mill housing or in the connection area between the mill and classifier housing.
- the manufacturing technology Effort and assembly effort for the Sandwich lock and the double belt conveyor are relative low.
- Another advantage is that with the Double belt conveyor, which is horizontal, vertical and in each any angle of inclination can be arranged, a continuous material feed is guaranteed. In order to associated is a lower energy consumption of the facility and an optimized grinding and classifying process.
- FIG. 2 The partial view of a grinding plant 2 shown in FIG. 2 has initially analogous to FIG. 1, which is in the prior art is described, an airflow roller mill as a vertical mill 6 with air flow promotion and silos 37, in which the in the vertical mill 6 material to be shredded is stored, on.
- the feed device according to the invention has a conveying device a double belt conveyor 3 and as a feed device for that brought up with the double belt conveyor 3 Material (not shown) on the double belt conveyor 3 adjusted lock, which below is referred to as sandwich lock 5.
- This sandwich lock 5 is gas and / or pressure tight in Area of a feed opening 11 (see Fig. 3) on the housing 10 of the vertical mill 6 attached.
- FIG. 2 A comparison of the grinding plant of the prior art in Fig. 1 and the grinding plant of FIG. 2 with an inventive Material feed, which is a sandwich lock 5 and a double belt conveyor 3 which interacts with this shows that a significantly lower building height is achieved in the grinding plant 2 of FIG. 2.
- the double belt conveyor 3 in the area of the silos 37 a lower horizontal conveying area 30 to which there is a vertical conveying area 31 connects, which over an upper horizontal conveying area 32 extends into the sandwich lock 5.
- a lower horizontal conveying area 30 to which there is a vertical conveying area 31 connects which over an upper horizontal conveying area 32 extends into the sandwich lock 5.
- FIG. 3 and FIG. 4 illustrate the design and arrangement a sandwich lock 5 on a vertical mill 6 with air flow conveyance, of the vertical mill 6 only one Area of the housing 10 is shown.
- the sandwich lock 5 is box-shaped and has a housing 8 with an end face 28, which with a Passage opening 23 for the double webbing 13 with therein enclosed and in particular sealed airtight Material 4 (see Fig. 4).
- An end region 7 of the double belt conveyor 3 is arranged within the housing 8 and thus in the printing system of the sandwich lock 5 and Vertical mill 6 included via the feed opening 11.
- the sandwich lock 5 is shown in FIG. 3 without a front side wall, around the formation of the end region 7 and the deflection of the To show double webbing 13.
- the double webbing 13 has a lower webbing 14 and upper webbing 15.
- a recording room 20 for the material 4 (Fig. 4) are the lower 14 and that upper webbing 15 trough-shaped and lie in Area of material-free overlap areas on the edge 19 mirror-symmetrical to one another, so that an im Cross section biconvex receiving space 20 is formed (see also Fig. 4).
- suitable sealing devices which expediently arranged in front of the sandwich lock 5 (not shown), the double webbing 13 is preferred sealed several times so that material side a false air entry in the sandwich lock 5 and in the Vertical mill 6 can be largely excluded.
- the end area accommodated within the sandwich lock 5 7 of the double belt conveyor 3 has a lower deflection drum 17, which is arranged relatively close to the feed opening 11 is.
- An upper pulley 18 for the upper Webbing 15 is offset, so that on the lower, continued webbing 14 overlying material (not shown) to one through the deflection drum 17th formed drop point and depending on the speed of the double webbing 13 and depending on the distance to Task opening 11 thrown almost centrally into the vertical mill 6 becomes.
- the guide drums 17, 18 are formed. According to the almost flat, material-free overlapping areas 19 are the deflection drums 17, 18 with circular cylindrical End regions 21 provided while between the circular cylindrical End areas 21 complementary to the trough-shaped Belt straps 14, 15 the guide drums 17, 18 almost are designed as a single-shell hyperboloid.
- seals of which in Fig. 3 only an upper sealing area 34 a Seal 33 of the passage opening 23 and a lower sealing area 35 are shown.
- the upper seal area 34 has height-adjustable sealing slats, which are resilient or lie abrasively on the upper sealing tape 15.
- Lower slot opening seals 24 and the upper slot opening 25 are not shown. This Seals and the lower sealing area 35 can in particular be designed as a labyrinth seal.
- Fig. 4 shows the formation and arrangement of the double webbing 13 between the upper, deflected webbing 15 and the lower, deflected webbing 14.
- the upper deflected webbing In principle, 15 does not require pulleys.
- the double webbing 13 between the redirected lower and upper Webbing 14, 15 has in the cross-section biconvex receiving space 20 on the regrind 4 to be fed.
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum Zuführen von Material in eine Vertikalmühle mit Luftstromförderung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for feeding Material in a vertical mill with air flow promotion according to the preamble of the claim 1.
Die Erfindung ist insbesondere zur Materialaufgabe von Behältern und Vorrichtungen geeignet, in welchen das Material bei Unter- oder Überdruck gelagert, be- oder verarbeitet wird.The invention is in particular for the material feed of containers and devices suitable in which the material stored, processed or processed at negative or positive pressure becomes.
Ein bevorzugtes Anwendungsgebiet sind Mahlanlagen, in denen Rohmaterial Vertikalmühlen mit Luftstromförderung, beispielsweise Luftstrom-Wälzmühlen, mit Hilfe von Fördereinrichtungen und einer Aufgabeeinrichtung zur Vermahlung zugeführt wird.A preferred area of application are grinding plants in which Raw material vertical mills with air flow conveyance, for example Airflow roller mills, with the help of conveyors and fed to a feeder for grinding becomes.
Es ist bekannt, zur Beschickung einer Vertikalmühle mit zu zerkleinerndem Rohmaterial, beispielsweise vorgetrockneter Rohbraunkohle oder Zementklinker und Zuschlagstoffen, eine Zwei- oder Dreiklappenschleuse oder eine Zellenradschleuse einzusetzen, welche die erforderliche Abdichtung einer im Unter- oder Überdruck gefahrenen Luftstrommühle gewährleisten.It is known to feed a vertical mill crushing raw material, for example pre-dried Raw lignite or cement clinker and aggregates, one Two- or three-flap lock or a cellular wheel lock to use, which the required sealing an in Ensure the airflow mill is under or overpressure.
Nachteilig sind jedoch die mit dem Einsatz dieser Materialschleusen verbundenen Kosten, welche die Gesamtkosten einer Mahlanlage erheblich erhöhen. Dies ist insbesondere auf die Bauhöhe der Klappen- und Zellenradschleusen selbst und auf deren durch den vertikalen Materialaustrag bedingte Anordnung etwa in Höhe einer Sichterdecke zurückzuführen. Neben den durch die Gebäudehöhe bedingten Kosten sind außerdem Aufwendungen für die mechanischen und elektrotechnischen Ausrüstungen sowie für die Montage erforderlich, welche sich negativ auf die Gesamtkosten einer Mahlanlage auswirken.However, the disadvantage with the use of these material locks related costs, which is the total cost of a Increase the grinding plant considerably. This is particularly due to the Height of the flap and cellular wheel locks themselves and on their arrangement due to the vertical material discharge approximately at the level of a sifter ceiling. Next the costs caused by the building height are also Expenses for mechanical and electrical engineering Equipment as well as required for assembly, which have a negative impact on the total costs of a grinding plant.
Fig. 1 zeigt in einer Teilansicht eine Mahlanlage 2 im Bereich
einer Luftstrom-Wälzmühle als Vertikalmühle 6 mit
Luftstromförderung. Als Aufgabeeinrichtung für das zu zerkleinernde
Mahlgut, welches aus einem Silo 37 einer Fördereinrichtung
43 zugeführt wird, ist eine Zellenradschleuse
45 eingesetzt. Die Zellenradschleuse 45 ist oberhalb einer
Sichterdecke 46 der Vertikalmühle 6 angeordnet. Das Mahlgut
(nicht dargestellt) gelangt über eine Einlaufschurre 47
in den Mahlraum 12 der Vertikalmühle 6. Fig. 1 verdeutlicht
die erhebliche Gebäudehöhe, die erforderlichen bautechnischen
Anlagenteile und die Länge der Fördereinrichtung 43,
welche die Gesamtkosten der Mahlanlage erhöhen.Fig. 1 shows a partial view of a grinding plant 2 in the area
an airflow roller mill as a vertical mill 6 with
Air flow promotion. As a feeding device for the material to be shredded
Grist, which consists of a silo 37 of a
Aus der AT-PS 400 684 ist eine Vorrichtung zum Zuführen von Rohkohle zu einer unter Druck stehenden Mühle bekannt. Um die druckstoßfest auszulegenden Teile auf ein Minimum zu beschränken, weist die Zuführeinrichtung nach einem Silo eine erste Förderleitung, danach einen Aufgabebunker, eine zweite Förderleitung, einen Zwischenbunker und eine dritte Förderleitung auf. Die dritte Förderleitung ist ein Trogkettenförderer, welcher als Zuteilorgan dient und vollständig in einem druckstoßfesten Gehäuse angeordnet ist. Über einen mittig in die Sichterdecke der Mühle mündenden Zufuhrschacht gelangt die Rohkohle von der dritten Förderleitung in die Mühle. Die gesamte Zuführeinrichtung weist aufgrund der übereinander angeordneten Bunker und horizontal angeordneten, drei Förderleitungen eine relativ große Bauhöhe auf und erfordert einen entsprechenden Investitions-, Montage- und Energieaufwand.From AT-PS 400 684 is a device for feeding Raw coal to a pressurized mill is known. Around the pressure shock resistant parts to a minimum restrict, the feeder has a silo a first delivery line, then a feed bunker, a second delivery line, an intermediate bunker and a third Delivery line on. The third conveyor line is a trough chain conveyor, which serves as an allocation organ and complete is arranged in a pressure shock-proof housing. About one that ends in the middle of the classifier's ceiling of the mill The raw coal enters the feed shaft from the third delivery line to the mill. The entire feeder points due to the stacked bunkers and horizontal arranged, three delivery lines a relatively large height and requires a corresponding investment, Assembly and energy expenditure.
Aus der DE 88 05 885 U1 ist eine Mühle zur Zerkleinerung von feuchtem Mahlgut mit einer Einlaufschurre zur Zuführung des Mahlgutes bekannt. Ein Förderband ragt in die schräg angeordnete Einlaufschurre, und die Einlaufschurre reicht bis in eine Einführöffnung in der Decke des Mühlengehäuses. Um die in der Einlaufschurre angeordneten Teile des Förderbandes vor aufsteigenden Heißgasen aus der Mühle bei Stromausfall zu schützen, ist ein Kamin angeordnet und mit der Einlaufschurre verbunden. An der Anschlussstelle des Kamins in der Einlaufschurre ist eine Absperrklappe als bewegliches Teil einer Gasweiche angeordnet, welche im Normalbetrieb den Kamin absperrt, während bei Stromausfall der Kamin geöffnet und die Einlaufschurre abgesperrt wird. Die im Bereich der deckenseitigen Zuführeinrichtung angeordneten zusätzlichen Bauteile vergrößern die Bauhöhe und erhöhen den investitionstechnischen und regelungstechnischen Aufwand der Mahlanlage.DE 88 05 885 U1 describes a grinder for comminution of moist regrind with an inlet chute for feeding the regrind known. A conveyor belt protrudes diagonally arranged inlet chute, and the inlet chute is sufficient up to an insertion opening in the ceiling of the mill housing. Around the parts of the conveyor belt arranged in the inlet chute against rising hot gases from the mill in the event of a power failure To protect, a fireplace is arranged and with the Inlet chute connected. At the connection point of the fireplace There is a butterfly valve in the inlet chute as a movable one Part of a gas switch arranged, which in normal operation shuts off the fireplace, while in the event of a power failure the fireplace opened and the inlet chute is closed. The in Area of the ceiling-side feeder arranged additional components increase the overall height and increase the investment and control engineering effort the grinding plant.
Ein Elevator-Förderer für Schüttgüter mit zwei endlosen Förderbändern, welche an ihren Längsrändern aneinanderliegen und von denen zumindest eines in einem vertikalen Bereich innerhalb eines Luftkastens verläuft; ist aus der DE 27 26 038 C2 bekannt. Für die erforderliche randseitige Abdichtung der Förderbänder sind an dem Luftkasten befestigte Dichtungsstreifen und Vorspannmittel vorgesehen.An elevator conveyor for bulk goods with two endless Conveyor belts that lie against each other at their longitudinal edges and at least one of them in a vertical area runs inside an air box; is from DE 27 26 038 C2 known. For the required edge sealing the conveyor belts are attached to the air box Sealing strips and prestressing means are provided.
Ein Doppelgurtbandförderer ist aus der DE 34 32 553 A1 bekannt. Um klebrige, schlammförmige und stark rieselfähige Schüttgüter sicher und ohne Entmischungsgefahr transportieren zu können, weist das Deckbandgurt Längs- und Querarmierungen auf, zwischen denen sich Einbeulungen zur Aufnahme des zu fördernden Gutes ausbilden. Die Einbeulungen bzw. Förderräume werden nach der anderen Seite von dem zweiten flachen Gurt des Förderbandes abgeschlossen. Durchgehende Längsführungen bestehen aus U-förmigen Stahlprofilabschnitten und sorgen für die erforderliche Abdichtungen der Förderräume.A double belt conveyor is known from DE 34 32 553 A1. To sticky, mud-shaped and free-flowing Transport bulk goods safely and without risk of segregation to be able to, the shroud belt has longitudinal and transverse reinforcements on, between which indentations for admission of the goods to be funded. The dents or funding areas are on the other side of the second flat belt of the conveyor belt completed. continuous Longitudinal guides consist of U-shaped steel profile sections and provide the necessary seals of the funding areas.
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Zuführung von Material in einen Behälter, insbesondere von zu zerkleinerndem Rohmaterial in eine Vertikalmühle, zu schaffen, welche eine besonders einfache und kostensparende Konstruktion aufweist, eine optimierte Materialaufgabe bei einer geringeren Bauhöhe der Anlage und vermindertem regelungstechnischen Aufwand und einen effizienten Mahl- und Sichtprozess ermöglicht.The invention has for its object to provide a device for feeding material into a container, in particular raw material to be comminuted in a vertical mill, which has a particularly simple and cost-saving design, an optimized material task with a lower overall height of the system and reduced control technology Effort and an efficient grinding and classifying process.
Erfindungsgemäß wird die Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Zweckmäßige und vorteilhafte Ausgestaltungen sind in den Unteransprüchen und in der Figurenbeschreibung enthalten.According to the invention the task is characterized by Features of claim 1 solved. Practical and advantageous Refinements are in the subclaims and in included in the description of the figures.
Ein Grundgedanke der Erfindung kann darin gesehen werden, als Aufgabeeinrichtung, welche zur Aufnahme eines Endbereichs einer Fördereinrichtung für das zuzuführende Material ausgebildet und mit dem aufgenommenen Endbereich der Fördereinrichtung in das Drucksystem einer Vertikalmühle mit Luftstromförderung, einbezogen ist, eine Sandwichschleuse und als Fördereinrichtung einen Doppelgurtförderer mit einem Doppelgurtband einzusetzen und die Sandwichschleuse zur seitlichen Zuführung und Aufgabe des Materials im Bereich einer Aufgabeöffnung des Gehäuses der Vertikalmühle anzuordnen.A basic idea of the invention can be seen in as a feeding device, which is used to hold an end region a conveyor for the feed Material trained and with the recorded End area of the conveyor in the printing system a vertical mill with air flow conveyance, is included, a sandwich lock and as a conveyor a double belt conveyor with a double belt insert and the sandwich lock for side feeding and feeding the material in the area of a feed opening the housing of the vertical mill to arrange.
Durch die erfindungsgemäße Zuführeinrichtung werden Materialschleusen, wie die Zweiklappen- oder Dreiklappenschleusen oder Zellenradschleusen, nicht mehr erforderlich und erhebliche Kosteneinsparungen im Bereich des Baus, der mechanischen Ausrüstung und der damit verbundenen Elektroausrüstung erreicht.Through the feed device according to the invention Material locks, such as the two-flap or three-flap locks or cellular wheel locks, no longer required and significant cost savings in the area of construction, the mechanical equipment and related electrical equipment reached.
Die Sandwichschleuse weist im Vergleich zu den bekannten Materialschleusen eine außerordentlich einfache Konstruktion und eine relativ geringe Bauhöhe auf. Dadurch werden die Fertigungs- und Montagekosten gesenkt. Die erfindungsgemässe Einrichtung erlaubt eine seitliche Zuführung und Aufgabe des Materials wodurch etwa 7 bis 8 m Gebäudehöhe eingespart werden können. Weitere Vorteile sind mit der insbesondere luftdichten, kontinuierlichen Materialförderung und -aufgabe mit Hilfe des Doppelgurtbandförderers verbunden, wobei die Förderung horizontal, vertikal und/oder schräg in jedem Neigungswinkel erfolgen kann. Während bei den bekannten Materialschleusen in der Regel ein diskontinuierlicher Materialeintrag erfolgt, ist mit der erfindungsgemäßen Förder-Aufgabeeinheit ein kontinuierlicher Materialstromeintrag realisierbar. Daraus ergeben sich Optimierungsmöglichkeiten einer Anlage und insbesondere eines Mahl- und Sichtprozesses bei einer Mahlanlage, welche zu einer Senkung des Energieverbrauchs und zu wesentlichen Vorteilen in ökologischer Hinsicht führen.The sandwich lock points in Compared to the well-known material locks an extraordinary simple construction and a relatively small Overall height. This makes the manufacturing and Assembly costs reduced. The device according to the invention permits lateral feeding and feeding of the Materials which saved about 7 to 8 m building height can be. Other advantages are with the particular airtight, continuous material conveying and feeding connected with the help of the double belt conveyor, whereby promoting horizontally, vertically and / or obliquely in each Tilt angle can be done. While with the well-known material locks usually a discontinuous material input is done with the conveyor task unit according to the invention a continuous material flow entry realizable. This results in opportunities for optimization a plant and especially a grinding and classifying process in a grinding plant, which leads to a reduction in energy consumption and to significant advantages in ecological Respect.
Vorzugsweise ist die Sandwichschleuse mit einem gas- und/oder druckdichten Gehäuse ausgebildet, welches rückseitig an eine Behälterwand bzw. ein Mühlengehäuse angrenzt und über eine Aufgabeöffnung mit dem Mahl- und/oder Sichtraum der Mühle in Verbindung steht. Indem das zuzuführende Material in einem Doppelgurtband transportiert und sandwichartig zwischen einem unteren und einem oberen Gurtband eingeschlossen ist, besteht die vorteilhafte Möglichkeit eines luftdichten Abschlusses des Doppelgurtbandes, so dass materialseitig ein Falschlufteintrag weitgehend ausgeschlossen werden kann.The sandwich lock is preferably with a gas and / or pressure-tight housing formed, which back of a container wall or a mill housing and via a feed opening with the grinding and / or The mill's visual space is connected. By adding what needs to be fed Material transported in a double belt and sandwiched between a lower and an upper one Belt strap is included, there is the advantageous Possibility of an airtight closure of the double webbing, so that a false air entry largely on the material side can be excluded.
Es ist zweckmäßig, das Doppelgurtband mit dem darin eingeschlossenen Material vor der Sandwichschleuse insbesondere mehrere Male abzudichten. Als Dichtungseinrichtungen sind Rollendichtungen, Schleifdichtungen und Borstendichtungen geeignet. Für eine abgedichtete Materialzuführung und einen reibungslosen Materialeintrag in die Vertikalmühle ohne Falschluftein- oder austritt ist es zweckmäßig, das von einem unteren und oberen Gurtband gebildete Doppelgurtband randseitig mit abdichtbaren materiallosen Überlappungsbereichen zu versehen, welche zweckmäßigerweise nahezu plan ausgebildet sind. It is advisable to use the double webbing with the included Material in front of the sandwich lock in particular to seal several times. As sealing devices are Roller seals, grinding seals and bristle seals suitable. For a sealed material supply and one smooth material entry into the vertical mill without It is advisable to enter or exit the wrong air from one lower and upper webbing formed double webbing on the edge with sealable material-free overlap areas to be provided, which expediently almost flat are trained.
Der in die Sandwichschleuse reichende Endbereich des Doppelgurtförderers weist Umlenktrommeln für das untere und obere Gurtband auf. Die Umlenktrommeln sind zweckmäßigerweise komplementär zu den Gurtbändern ausgebildet und derart versetzt in der Sandwichschleuse angeordnet, dass das obere Gurtband zur Freigabe des Materials in Fördereinrichtung vor der unteren Umlenktrommel angeordnet ist. Die untere Umlenktrommel dient als Abwerfeinrichtung für das Material und ist derart zu der Aufgabeöffnung in dem Behälter bzw. in der Vertikalmühle angeordnet, dass das Material in die Aufgabeöffnung und den Behälter bzw. die Vertikalmühle gelangt.The end area of the double belt conveyor reaching into the sandwich lock has pulleys for the lower and upper webbing. The deflection drums are expedient complementary to the straps and such staggered in the sandwich lock that the Upper belt strap for releasing the material in the conveyor is arranged in front of the lower pulley. The lower pulley serves as a dropping device for the Material and is so to the feed opening in the container or arranged in the vertical mill that the material into the feed opening and the container or the vertical mill arrives.
Wenn die Gurtbänder zwischen dem randseitigen, im Wesentlichen ebenen Überlappungsbereichen muldenförmig profiliert sind und spiegelbildlich mit ihren Überlappungsbereichen aufeinander liegen, ist ein im Querschnitt bikonvexer Aufnahmeraum für das zu transportierende Material gebildet, welcher besonders einfach abgedichtet werden kann.If the straps between the edge, essentially flat overlapping areas profiled trough-shaped are and mirror images with their overlapping areas lying on top of one another is a recording space that is biconvex in cross section formed for the material to be transported, which can be sealed particularly easily.
Da aufgrund der Aufgabeöffnung in der Vertikalmühle in dem Gehäuse der Sandwichschleuse derselbe Druck wie in der Vertikalmühle herrscht, sind gemäß einer bevorzugten Ausführung der Erfindung Abdichtungen im Bereich der Durchtrittsöffnung für das Doppelgurtband mit eingeschlossenem Material und einer unteren und oberen schlitzförmigen Öffnung für das untere bzw. obere umgelenkte und zurückgeführte Gurtband ausgebildet.Because of the opening in the vertical mill the same in the housing of the sandwich lock Pressure as there is in the vertical mill According to a preferred embodiment of the invention, seals in the area of the passage opening for the double webbing with included material and one lower and upper slit-shaped opening for the lower or upper deflected and returned webbing.
Zweckmäßigerweise sind Labyrinthdichtungen für das rücklaufende obere Gurtband und für das rücklaufende untere Gurtband vorgesehen. Die zwischen den Schlitzöffnungen angeordnete Durchtrittsöffnung ist vorteilhafterweise wenigstens in einem oberen Dichtungsbereich zur Anpassung an ein unterschiedlich gewölbtes oberes Gurtband höhenverstellbar ausgebildet. Beispielsweise können Dichtlamellen vorgesehen sein, welche federnd oder schleifend an das obere Gurtband des Doppelgurtbandes angedrückt werden können. Das untere Gurtband ist zweckmäßigerweise relativ stabil und mit einer gleichbleibenden Mulde zur Aufnahme des Materials versehen. Um auch bei dem umgelenkten und zurückgeführten unteren Gurtband die muldenförmige Ausbildung aufrechtzuerhalten, ist es sinnvoll, Stützrollen entsprechend anzuordnen. Als Dichtung kann eine Labyrinthdichtung angeordnet werden.Labyrinth seals are expedient for the return upper webbing and for the returning lower webbing intended. The one located between the slot openings Through opening is advantageously at least in an upper sealing area to adapt to a different arched upper webbing height adjustable educated. For example, sealing lamellae can be provided be which resilient or dragging on the upper webbing of the double webbing can be pressed. The lower Belt strap is expediently relatively stable and with one constant trough for receiving the material. To also with the redirected and returned lower Webbing to maintain the trough-shaped formation it makes sense to arrange support rollers accordingly. As Seal, a labyrinth seal can be arranged.
Die Durchtrittsöffnung und die untere und die obere Schlitzöffnung können unabhängig von den verwendeten Dichtungen komplementär zu dem Querschnitt des Doppelgurtbandes sowie zu dem umgelenkten unteren und oberen Gurtband ausgebildet sein. Es ist besonders vorteilhaft, dass durch die Verwendung eines Doppelgurtbandes und einer Sandwichschleuse im Bereich einer Aufgabeöffnung das Rohmaterial frei fallend oder zwangsgeführt dem Behälter oder Mahlraum zugeführt werden kann. Dabei kann durch eine einstellbare Geschwindigkeit des Doppelgurtbandes in Abhängigkeit vom Abstand der unteren Umlenktrommel von der Aufgabeöffnung das Rohmaterial direkt zur Mühlenmitte gelangen.The passage opening and the lower and the upper Slot opening can be made regardless of the seals used complementary to the cross section of the double webbing as well as the deflected lower and upper webbing his. It is particularly advantageous that through the Use of a double webbing and a sandwich lock the raw material falling freely in the area of a feed opening or fed to the container or grinding chamber can be. This can be done through an adjustable speed of the double webbing depending on the distance the raw material from the lower guide drum from the feed opening go directly to the middle of the mill.
Die wesentlichen Vorteile der erfindungsgemäßen Einrichtung sind ein geringerer bautechnischer und maschinenseitiger Aufwand für die Materialzuführung aufgrund der Anordnung der Sandwichschleuse oberhalb der Mahlwalzen in einem seitlichen Bereich des Mühlengehäuses oder auch im Verbindungsbereich zwischem dem Mühlen- und Sichterhäuse. Der fertigungstechnische Aufwand und der Montageaufwand für die Sandwichschleuse und den Doppelgurtförderer sind relativ gering. Ein weiterer Vorteil besteht darin, dass mit dem Doppelgurtförderer, welcher horizontal, vertikal und in jedem beliebigen Neigungswinkel angeordnet werden kann, eine kontinuierliche Materialaufgabe gewährleistet wird. Damit verbunden ist ein geringerer Energieverbrauch der Einrichtung und ein optimierter Mahl- und Sichtprozess.The main advantages of the device according to the invention are less technical and machine-based Expenses for material supply due to the arrangement the sandwich lock above the grinding rollers in a side Area of the mill housing or in the connection area between the mill and classifier housing. The manufacturing technology Effort and assembly effort for the Sandwich lock and the double belt conveyor are relative low. Another advantage is that with the Double belt conveyor, which is horizontal, vertical and in each any angle of inclination can be arranged, a continuous material feed is guaranteed. In order to associated is a lower energy consumption of the facility and an optimized grinding and classifying process.
Die Erfindung wird nachstehend anhand einer Zeichnung weiter erläutert; in dieser zeigen in einer stark schematisierten Darstellung
- Fig. 1
- eine Teilansicht einer Mahlanlage mit einer Zuführeinrichtung für Rohmaterial gemäß dem Stand der Technik;
- Fig. 2
- eine Teilansicht einer Mahlanlage mit einer erfindungsgemäßen Zuführeinrichtung;
- Fig. 3
- eine perspektivische Darstellung einer erfindungsgemäßen Zuführeinrichtung an einer ausschnittsweise gezeigten Wand eines Behälters und
- Fig. 4
- eine stark schematisierte Darstellung eines Doppelgurtbandes mit eingeschlossenem Material sowie eines umgelenkten unteren und oberen Gurtbandes.
- Fig. 1
- a partial view of a grinding plant with a feed device for raw material according to the prior art;
- Fig. 2
- a partial view of a grinding plant with a feed device according to the invention;
- Fig. 3
- a perspective view of a feed device according to the invention on a partially shown wall of a container and
- Fig. 4
- a highly schematic representation of a double webbing with enclosed material and a redirected lower and upper webbing.
Die in Fig. 2 gezeigte Teilansicht einer Mahlanlage 2 weist zunächst analog zu der Fig. 1, welche im Stand der Technik beschrieben ist, eine Luftstrom-Wälzmühle als Vertikalmühle 6 mit Luftstromförderung sowie Silos 37, in denen das in der Vertikalmühle 6 zu zerkleinernde Material gelagert ist, auf. Die erfindungsgemäße Zuführeinrichtung weist als Fördereinrichtung einen Doppelgurtförderer 3 und als Aufgabeeinrichtung für das mit dem Doppelgurtförderer 3 herangeführte Material (nicht dargestellt) eine an den Doppelgurtförderer 3 angepasste Schleuse auf, welche nachfolgend als Sandwichschleuse 5 bezeichnet wird. The partial view of a grinding plant 2 shown in FIG. 2 has initially analogous to FIG. 1, which is in the prior art is described, an airflow roller mill as a vertical mill 6 with air flow promotion and silos 37, in which the in the vertical mill 6 material to be shredded is stored, on. The feed device according to the invention has a conveying device a double belt conveyor 3 and as a feed device for that brought up with the double belt conveyor 3 Material (not shown) on the double belt conveyor 3 adjusted lock, which below is referred to as sandwich lock 5.
Diese Sandwichschleuse 5 ist gas- und/oder druckdicht im
Bereich einer Aufgabeöffnung 11 (siehe Fig. 3) am Gehäuse
10 der Vertikalmühle 6 befestigt.This sandwich lock 5 is gas and / or pressure tight in
Area of a feed opening 11 (see Fig. 3) on the
Ein Vergleich der Mahlanlage des Standes der Technik in Fig. 1 und der Mahlanlage nach Fig. 2 mit einer erfindungsgemäßen Materialzuführung, welche eine Sandwichschleuse 5 und einen mit dieser zusammenwirkenden Doppelgurtförderer 3 aufweist, zeigt, dass eine wesentlich geringere Gebäudehöhe bei der Mahlanlage 2 der Fig. 2 erreicht wird.A comparison of the grinding plant of the prior art in Fig. 1 and the grinding plant of FIG. 2 with an inventive Material feed, which is a sandwich lock 5 and a double belt conveyor 3 which interacts with this shows that a significantly lower building height is achieved in the grinding plant 2 of FIG. 2.
In diesem Ausführungsbeispiel weist der Doppelgurtförderer
3 im Bereich der Silos 37 einen unteren horizontalen Förderbereich
30 auf, an den sich ein vertikaler Förderbereich
31 anschließt, welcher über einen oberen horizontalen Förderbereich
32 bis in die Sandwichschleuse 5 reicht. Die mit
der geringeren Bauhöhe und den reduzierten Anlage- und Bauteilen
verbundene Kosteneinsparung ist offensichtlich.
Grundsätzlich kann die Ausrichtung des Doppelgurtförderers
3 entsprechend den jeweiligen Gegebenheiten und Erfordernissen
der Anlage erfolgen und beispielsweise auch über den
gesamten Förderweg vertikal und/oder schräg in jedem beliebigen
Neigungswinkel und/oder horizontal angeordnet sein.In this embodiment, the double belt conveyor
3 in the area of the silos 37 a lower horizontal conveying
Fig. 3 und Fig. 4 verdeutlichen Ausbildung und Anordnung
einer Sandwichschleuse 5 an einer Vertikalmühle 6 mit Luftstromförderung,
wobei von der Vertikalmühle 6 lediglich ein
Bereich des Gehäuses 10 dargestellt ist. Die Sandwichschleuse
5 ist kastenförmig ausgebildet und weist ein Gehäuse
8 mit einer Stirnseite 28 auf, welche mit einer
Durchtrittsöffnung 23 für das Doppelgurtband 13 mit darin
eingeschlossenem und insbesondere luftdicht abgeschlossenen
Material 4 (siehe Fig. 4) auf. Ein Endbereich 7 des Doppelgurtförderers
3 ist innerhalb des Gehäuses 8 angeordnet und
damit in das Drucksystem der Sandwichschleuse 5 und der
Vertikalmühle 6 über die Aufgabeöffnung 11 einbezogen. Zur
Vermeidung von Falschlufteintritt oder -austritt sind das
Doppelgurtband 13 mit dem darin aufgenommenem Material und
die Sandwichschleuse 5 abgedichtet, wobei die Sandwichschleuse
5 in Fig. 3 ohne vordere Seitenwand gezeigt ist,
um die Ausbildung des Endbereichs 7 und die Umlenkung des
Doppelgurtbandes 13 zu zeigen.3 and FIG. 4 illustrate the design and arrangement
a sandwich lock 5 on a vertical mill 6 with air flow conveyance,
of the vertical mill 6 only one
Area of the
Das Doppelgurtband 13 weist ein unteres Gurtband 14 und ein
oberes Gurtband 15 auf. Zur Ausbildung eines Aufnahmeraums
20 für das Material 4 (Fig. 4) sind das untere 14 und das
obere Gurtband 15 muldenförmig ausgebildet und liegen im
Bereich von randseitigen materiallosen Überlappungsbereichen
19 spiegelsymmetrisch aufeinander, so dass ein im
Querschnitt bikonvexer Aufnahmeraum 20 gebildet wird (siehe
auch Fig. 4). Durch geeignete Dichtungseinrichtungen, welche
zweckmäßigerweise vor der Sandwichschleuse 5 angeordnet
sind (nicht dargestellt), wird das Doppelgurtband 13 vorzugsweise
mehrere Male abgedichtet, so dass materialseitig
eine Falschlufteintrag in die Sandwichschleuse 5 und in die
Vertikalmühle 6 weitgehend ausgeschlossen werden kann.The
Der innerhalb der Sandwichschleuse 5 aufgenommene Endbereich
7 des Doppelgurtförderers 3 weist eine untere Umlenktrommel
17 auf, die relativ nahe der Aufgabeöffnung 11 angeordnet
ist. Eine obere Umlenktrommel 18 für das obere
Gurtband 15 ist versetzt angeordnet, so dass das auf dem
unteren, weitergeführten Gurtband 14 aufliegende Material
(nicht dargestellt) bis an eine durch die Umlenktrommel 17
gebildete Abwurfstelle gelangt und je nach Geschwindigkeit
des Doppelgurtbandes 13 und in Abhängigkeit vom Abstand zur
Aufgabeöffnung 11 nahezu mittig in die Vertikalmühle 6 abgeworfen
wird.The end area accommodated within the sandwich lock 5
7 of the double belt conveyor 3 has a
Komplementär zu den muldenförmig ausgebildeten und spiegelsymmetrisch
aufeinanderliegenden Gurtbändern 14, 15 sind
die Umlenktrommeln 17, 18 ausgebildet. Entsprechend den nahezu
plan ausgebildeten materiallosen Überlappungsbereichen
19 sind die Umlenktrommeln 17, 18 mit kreiszylindrischen
Stirnbereichen 21 versehen, während zwischen den kreiszylindrischen
Stirnbereichen 21 komplementär zu den muldenförmigen
Gurtbändern 14, 15 die Umlenktrommeln 17, 18 nahezu
als ein einschaliger Hyperboloid ausgebildet sind.Complementary to the trough-shaped and mirror-symmetrical
Um die erforderliche Abdichtung der Sandwichschleuse 5 gegenüber
dem Atmosphärendruck auch im Bereich der stirnseitigen
Durchtrittsöffnung 23 und einer unteren Schlitzöffnung
24 für das umgelenkte untere Gurtband 14 sowie einer
oberen Schlitzöffnung 25 für das umgelenkte obere Gurtband
15 zu gewährleisten, sind mit Dichtungen versehen, von denen
in Fig. 3 nur ein oberer Dichtungsbereich 34 einer
Dichtung 33 der Durchtrittsöffnung 23 und ein unterer Dichtungsbereich
35 gezeigt sind. Der obere Dichtungsbereich 34
weist höhenverstellbare Dichtlamellen auf, welche federnd
oder schleifend auf dem oberen Dichtband 15 aufliegen. Der
untere Dichtungsbereich 35 der Dichtung 33 ist nur teilweise
gezeigt. Dichtungen der unteren Schlitzöffnung 24 und
der oberen Schlitzöffnung 25 sind nicht dargestellt. Diese
Dichtungen und der untere Dichtungsbereich 35 können insbesondere
als Labyrinthdichtung ausgebildet sein.To the required sealing of the sandwich lock 5 opposite
the atmospheric pressure also in the area of the
Fig. 4 zeigt Ausbildung und Anodnung des Doppelgurtbandes
13 zwischem dem oberen, umgelenkten Gurtband 15 und des unteren,
umgelenkten Gurtbandes 14. Zur Abstützung des muldenförmigen
Bereichs des umgelenkten unteren Gurtbandes 14
sind Stützrollen 26 angeordnet. Das obere umgelenkte Gurtband
15 benötigt im Prinzip keine Umlenkrollen. Das Doppelgurtband
13 zwischen dem umgelenkten unteren und oberen
Gurtband 14, 15 weist in dem im Querschnitt bikonvexen Aufnahmeraum
20 das zuzuführende Mahlgut 4 auf.Fig. 4 shows the formation and arrangement of the
Claims (16)
- Device for supplying material to a vertical mill (6) with air flow conveying,
with a conveyor (3) for conveying the material (4) and with a feed device (5) by means of which the material (4) can be supplied to the vertical mill (6), an end region (7) of the conveyor (3) being located in the feed device (5) and the feed device (5) and the end region (7) of the conveyor (3) received therein being incorporated into the pressure system of the vertical mill (6),
characterized in that
as conveyor is used a double strap conveyor (3) and as feed device is used a sandwich lock (5),
that the double strap conveyor (3) has a double strap belt (13) with a lower strap belt (14) and an upper strap belt (15), between which the milling material (4) is enclosed as material (4) to be supplied
that the double strap belt (3) in the end region (7) located in the sandwich lock (5) has a lower deflection drum (17) for the lower strap belt (14) and an upper deflection drum (18) for the upper strap belt (15), the upper deflection drum (18) being located upstream of the lower deflection drum (17) in the conveying direction,
that the sandwich lock (3) is laterally fixed to the casing (10) of the vertical mill (6) and
that in the ejection direction of the milling material (4) a feed opening (11) is formed in the casing (10) of the vertical mill (6). - Device according to claim 1,
characterized in that
the casing (8) of the sandwich lock (5) has a passage opening (23) for the double strap belt (13) with the material (4) enclosed therein and a lower (24) and an upper slot opening (25) for the lower (14) and upper strap belt (15) to be returned and that the passage opening (23) and the upper (24) and lower slot opening (25) are provided with seals (33, 34, 35) for maintaining the pressure level in the sandwich lock (5) and in the vertical mill (6). - Device according to claim 2,
characterized in that
the passage opening (23) and the lower (24) and upper slot opening (25) are in each case adapted to the contour of the double strap belt (13) with the material (4) enclosed therein or the deflected, lower (14) and upper strap belt (15). - Device according to one of the preceding claims,
characterized in that,
at least in the end region (7) of the double strap conveyor (3) received in the sandwich lock (5), the material (4) to be supplied is enclosed in air-tight manner between the lower (14) and the upper strap belt (15). - Device according to one of the preceding claims,
characterized in that
the double strap belt (13) is marginally provided with material-free overlap areas (19) and to avoid a secondary air introduction into the sandwich lock (5) and the vertical mill (6) is constructed in sealable manner. - Device according to one of the preceding claims,
characterized in that
for sealing the double strap belt (13) with the material (4) enclosed therein, sealing means are provided and that the sealing means, constructed as rolling seals, sliding seals or bristle seals, are positioned upstream of the sandwich lock (5). - Device according to one of the preceding claims,
characterized in that
an overpressure or underpressure prevails in the vertical mill (6) and in the sandwich lock (5) and the sandwich lock has a casing (8) constructed in gas-tight and/or pressure-tight manner. - Device according to one of the preceding claims,
characterized in that
the lower strap belt (14) and upper strap belt (15) are constructed in trough-shaped manner and with their material-free, virtually planar overlap areas (19) are superimposed in mirror symmetrical manner in such a way that a cross-sectionally biconvex reception space (20) for the milling material (4) is formed. - Device according to one of the preceding claims,
characterized in that
the deflection drums (17, 18) of the double strap conveyor (3) are constructed in complementary manner to the trough-shaped strap belts (14, 15) and between circular cylindrical front areas (21) are virtually shaped like a one-sheet hyperboloid. - Device according to one of the preceding claims,
characterized in that
backing rolls (26) for maintaining the trough-shaped construction are provided at least in the vicinity of the deflected, lower strap belt (14). - Device according to one of the claims 2 to 10,
characterized in that
the seal (33) of the passage opening (23) for the double strap belt (13) has an upper (34) and a lower sealing area (35) and that the upper sealing area (34) is vertically adjustable and adaptable to the convexity of the upper strap belt (15) and a constant sealing area (35) is provided for the lower strap belt (14). - Device according to claim 11,
characterized in that
the vertically adjustable, upper sealing area (34) of the seal (33) has sealing laminas, which rest in resilient or sliding manner on the upper strap belt (15) of the double strap belt (13) and that the lower sealing area (35) of seal (33) and the seals of the lower (24) and upper slot openings (25) are constructed in labyrinth packing form. - Device according to one of the preceding claims,
characterized in that
the double strap conveyor (3) has a lower, virtually horizontal conveying area (30) for receiving raw material, e.g. from silos (37), a vertical conveying area (31) and an upper, virtually horizontal conveying area (32) and that the upper, horizontal conveying area (32) extends into the sandwich lock (3). - Device according to one of the claims 2 to 13,
characterized in that
the sandwich lock (5) has a box-shaped casing (8) with a front side (28), which faces the feed opening (11) and in which are formed the passage opening (23) and the lower (24) and upper slot opening (25). - Device according to one of the preceding claims,
characterized in that
the milling material (4) supplied in the double strap belt (13) and ejected into the feed opening (11) passes in free-falling or forcibly guided manner into the milling area (12) of the vertical mill (6). - Device according to one of the preceding claims,
characterized in that
the speed of the double strap belt (13) is adjustable as a function of the spacing of the lower deflection drum (17) from the feed opening (11) in such a way that the milling material (4) passes directly to the centre of the mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK02737910T DK1372858T3 (en) | 2001-04-03 | 2002-04-02 | Material supply device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10116550A DE10116550B4 (en) | 2001-04-03 | 2001-04-03 | Device for feeding material |
| DE10116550 | 2001-04-03 | ||
| PCT/EP2002/003636 WO2002081090A2 (en) | 2001-04-03 | 2002-04-02 | Device for supplying a material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1372858A2 EP1372858A2 (en) | 2004-01-02 |
| EP1372858B1 true EP1372858B1 (en) | 2004-12-01 |
Family
ID=7680189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02737910A Expired - Lifetime EP1372858B1 (en) | 2001-04-03 | 2002-04-02 | Device for supplying a material |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6896213B2 (en) |
| EP (1) | EP1372858B1 (en) |
| JP (1) | JP4026842B2 (en) |
| KR (1) | KR100868826B1 (en) |
| CN (1) | CN1265889C (en) |
| AT (1) | ATE283730T1 (en) |
| AU (1) | AU2002312787A1 (en) |
| CA (1) | CA2445424C (en) |
| DE (2) | DE10116550B4 (en) |
| DK (1) | DK1372858T3 (en) |
| ES (1) | ES2233825T3 (en) |
| WO (1) | WO2002081090A2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10116550B4 (en) * | 2001-04-03 | 2005-06-02 | Loesche Gmbh | Device for feeding material |
| DE102005010700A1 (en) * | 2005-03-09 | 2006-09-14 | Studiengesellschaft Kohle Mbh | Process for the synthesis of compounds |
| DE102009007481A1 (en) * | 2009-01-30 | 2010-09-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Conveyor system for transporting materials, in particular bulk material |
| US9643800B2 (en) * | 2013-02-23 | 2017-05-09 | Phillip Douglas | Horizontal support system |
| CN109250474A (en) * | 2018-11-01 | 2019-01-22 | 温州金余塑胶板有限公司 | A kind of board of glasses cleaning equipment |
| EP3903940A1 (en) * | 2020-04-29 | 2021-11-03 | Mads Jespersen | Cement production apparatus and method for grinding particulate material |
| WO2021220227A1 (en) * | 2020-04-29 | 2021-11-04 | Fidetechnology Lda | Apparatus and method for grinding particulate material |
| CN111545327B (en) * | 2020-05-19 | 2021-09-17 | 铜仁职业技术学院 | Ore processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2833481A (en) * | 1955-09-15 | 1958-05-06 | Shawinigan Chem Ltd | Method of breaking compressed acetylene black |
| AT292533B (en) * | 1969-07-14 | 1971-08-25 | Austria Tabak Werke Ag Vorm Oe | Device for achieving the most uniform possible cutting performance for or on tobacco cutting machines |
| US4059235A (en) * | 1976-05-28 | 1977-11-22 | Bryant-Poff, Inc. | Shredding device |
| DD133214A5 (en) * | 1976-06-17 | 1978-12-20 | Moledeth Dev Co Ltd | ELEVATOR-FOURDERER FOR SCHUETTMATERIAL |
| DE3000153A1 (en) * | 1980-01-04 | 1981-07-09 | Hauni-Werke Körber & Co KG, 2050 Hamburg | FEEDING DEVICE FOR A TOBACCO CUTTING MACHINE |
| US4312677A (en) * | 1980-02-12 | 1982-01-26 | Intercane Systems, Inc. | Apparatus for separating the components of plant stalks |
| DE3432553A1 (en) * | 1984-09-05 | 1986-03-13 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | DOUBLE BELT CONVEYOR |
| DE8805885U1 (en) * | 1988-05-03 | 1988-07-14 | Krupp Polysius Ag, 4720 Beckum, De | |
| DE3903325A1 (en) * | 1989-02-04 | 1990-08-09 | Bezner Maschf | METHOD FOR RECOVERING RECYCLED MATERIALS, IN PARTICULAR FROM CONSTRUCTION SITE WASTE AND SYSTEM FOR CARRYING OUT THE METHOD |
| DE4302637A1 (en) * | 1993-01-30 | 1994-08-04 | Babcock Energie Umwelt | Crude coal feeder to pressurised pulveriser |
| US6135374A (en) * | 1999-10-08 | 2000-10-24 | Mursen Environmental, Inc. | Food by-product processing apparatus |
| US6588688B1 (en) * | 2000-08-03 | 2003-07-08 | Weima Maschinenbau Gmbh | Grinder for comminuting waste material |
| DE10116550B4 (en) * | 2001-04-03 | 2005-06-02 | Loesche Gmbh | Device for feeding material |
| ATE272014T1 (en) * | 2002-02-21 | 2004-08-15 | Innova Patent Gmbh | SYSTEM FOR CONVEYING BULK GOODS |
| KR200419250Y1 (en) | 2006-03-31 | 2006-06-16 | 주식회사 에이원코리아 | Apparatus crusher and transfer of raw material for plastics |
-
2001
- 2001-04-03 DE DE10116550A patent/DE10116550B4/en not_active Expired - Fee Related
-
2002
- 2002-04-02 DK DK02737910T patent/DK1372858T3/en active
- 2002-04-02 DE DE50201679T patent/DE50201679D1/en not_active Expired - Lifetime
- 2002-04-02 CN CNB028112156A patent/CN1265889C/en not_active Expired - Fee Related
- 2002-04-02 WO PCT/EP2002/003636 patent/WO2002081090A2/en active IP Right Grant
- 2002-04-02 AU AU2002312787A patent/AU2002312787A1/en not_active Abandoned
- 2002-04-02 ES ES02737910T patent/ES2233825T3/en not_active Expired - Lifetime
- 2002-04-02 US US10/474,234 patent/US6896213B2/en not_active Expired - Fee Related
- 2002-04-02 JP JP2002579123A patent/JP4026842B2/en not_active Expired - Fee Related
- 2002-04-02 KR KR1020037012976A patent/KR100868826B1/en not_active IP Right Cessation
- 2002-04-02 AT AT02737910T patent/ATE283730T1/en not_active IP Right Cessation
- 2002-04-02 EP EP02737910A patent/EP1372858B1/en not_active Expired - Lifetime
- 2002-04-02 CA CA002445424A patent/CA2445424C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE10116550A1 (en) | 2002-10-17 |
| KR20030094319A (en) | 2003-12-11 |
| ES2233825T3 (en) | 2005-06-16 |
| KR100868826B1 (en) | 2008-11-14 |
| WO2002081090A3 (en) | 2003-01-03 |
| EP1372858A2 (en) | 2004-01-02 |
| DK1372858T3 (en) | 2005-03-29 |
| WO2002081090A2 (en) | 2002-10-17 |
| CA2445424A1 (en) | 2002-10-17 |
| JP2004534634A (en) | 2004-11-18 |
| AU2002312787A1 (en) | 2002-10-21 |
| US20040140177A1 (en) | 2004-07-22 |
| US6896213B2 (en) | 2005-05-24 |
| CA2445424C (en) | 2007-09-04 |
| JP4026842B2 (en) | 2007-12-26 |
| DE50201679D1 (en) | 2005-01-05 |
| CN1265889C (en) | 2006-07-26 |
| CN1531462A (en) | 2004-09-22 |
| DE10116550B4 (en) | 2005-06-02 |
| ATE283730T1 (en) | 2004-12-15 |
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