EP1372858A2 - Device for supplying a material - Google Patents
Device for supplying a materialInfo
- Publication number
- EP1372858A2 EP1372858A2 EP02737910A EP02737910A EP1372858A2 EP 1372858 A2 EP1372858 A2 EP 1372858A2 EP 02737910 A EP02737910 A EP 02737910A EP 02737910 A EP02737910 A EP 02737910A EP 1372858 A2 EP1372858 A2 EP 1372858A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- webbing
- double
- double belt
- vertical mill
- sealing
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 25
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000003801 milling Methods 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000109 continuous material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000273930 Brevoortia tyrannus Species 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 230000002787 reinforcement 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
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 into a container according to the preamble of claim 1.
- the invention is particularly suitable for the material feed of containers and devices in which the material is stored, processed or processed under negative or positive pressure.
- a preferred area of application is grinding plants in which raw material is fed to vertical mills with air flow conveying, for example air flow roller mills, with the aid of conveying devices and a feed device for grinding.
- FIG. 1 shows a partial view of a grinding plant 2 in the area of an airflow roller mill as a vertical mill 6 with airflow conveyance.
- a rotary feeder 45 is used as the feed device for the regrind to be ground, which is fed from a silo 37 to a conveyor 43.
- the cellular wheel sluice 45 is arranged above a classifying ceiling 46 of the vertical mill 6.
- the regrind (not shown) reaches the grinding chamber 12 of the vertical mill 6 via an inlet chute 47.
- FIG. 1 illustrates the considerable height of the building, the structural components required and the length of the conveyor 43, which increase the total cost of the grinding system.
- the feed device From AT-PS 400 684 a device for feeding raw coal to a pressurized mill is known.
- the feed device has a first conveyor line after a silo, then a feed hopper, a second conveyor line, an intermediate bunker and a third conveyor line.
- the third conveyor line is a trough chain conveyor, which serves as an allotment element and is completely arranged in a pressure-shock-proof housing.
- the raw coal from the third conveyor passes through a feed shaft that opens into the middle of the classifier's ceiling. pipe into the mill.
- the entire feed device has a relatively large overall height due to the stacked bunkers and horizontally arranged three delivery lines and requires a corresponding investment, assembly and energy expenditure.
- An elevator conveyor for bulk goods with two endless conveyor belts which lie against one another at their longitudinal edges and at least one of which runs in a vertical area within an air box is known from DE 27 26 038 C2.
- sealing strips and pretensioning means fastened to the air box are provided.
- a double belt conveyor is known from DE 34 32 553 AI.
- the shroud belt has longitudinal and transverse reinforcements between which dents are formed to accommodate the goods to be conveyed.
- the dents or conveying spaces are closed on the other side by the second flat belt of the conveyor belt.
- Continuous longitudinal guides consist of U-shaped steel profile sections and ensure the necessary sealing of the delivery rooms.
- the invention is based on the object of creating a device for feeding material into a container, in particular raw material to be comminuted into a vertical mill, which has a particularly simple and cost-saving construction and an optimized material feed and an efficient grinding and classifying process. zess enables. According to the invention the object is achieved by the characterizing features of claim 1. Useful and advantageous configurations are contained in the subclaims and in the description of the figures.
- a basic idea of the invention can be seen in forming a feeding device for receiving an end region of a conveying device for the material and incorporating the feeding device with the end region of the conveying device accommodated therein into the pressure system of the container, for example a vertical mill with air flow conveying.
- a double belt conveyor is used as the conveying device for the raw material, which is connected at the end to a correspondingly designed lock as a feeding device.
- the feed device according to the invention means that material locks, such as two-flap or three-flap locks or cellular wheel locks, are no longer required and considerable cost savings are achieved in the area of construction, mechanical equipment and the associated electrical equipment.
- a lock that can be integrated on a double belt conveyor can be designed as a sandwich lock, which has an extraordinarily simple construction and a relatively low overall height in comparison to the known material locks. This also reduces manufacturing and assembly costs. It is particularly advantageous that the device allows the material to be fed in and fed in from the side and saves about 7 to 8 m of building height can be. Further advantages are associated with the possible continuous material conveying and feeding, the conveying being possible horizontally, vertically and / or obliquely at any angle of inclination. While in the known material locks a discontinuous material entry takes place, a continuous material flow entry can be realized with the conveying-task unit according to the invention. This results in possibilities for optimizing a plant and in particular a grinding and classifying process in a grinding plant, which leads to a reduction in energy consumption and significant ecological advantages.
- the sandwich lock with a gas-tight and / or pressure-tight housing which adjoins the rear of a container wall or a mill housing and is connected to the grinding and / or classifying chamber of the mill via a feed opening.
- the deflection drums are expediently designed to be complementary to the belt straps and are arranged offset in the sandwich lock in such a way that the upper belt strap is arranged in front of the lower deflection drum to release the material in the conveying device.
- the lower deflection drum serves as a dropping device for the material and is arranged in such a way to the feed opening in the container or in the vertical mill that the material gets into the feed opening and the container or the vertical mill.
- the belt straps are trough-shaped between the edge-side, essentially flat overlapping areas and are mirror-inverted with their overlapping areas, a cross-sectionally biconvex receiving space for the material to be transported is formed, which can be sealed particularly easily.
- seals are in the area of a passage opening for the double webbing with enclosed material and a lower and upper slit-shaped opening for the lower and upper deflected and returned webbing required.
- Labyrinth seals are expediently provided for the returning upper webbing and for the returning lower webbing.
- the passage opening arranged between the slot openings is advantageously designed to be height-adjustable at least in an upper sealing area for adaptation to a differently curved upper belt webbing.
- sealing lamellae can be provided be which can be pressed resiliently or rubbing against the upper webbing of the double webbing.
- the lower webbing is expediently relatively stable and provided with a constant trough for receiving the material. In order to maintain the trough-shaped design even with the deflected and retracted lower belt webbing, it makes sense to arrange support rollers accordingly.
- a labyrinth seal can be arranged as a seal.
- the passage opening and the lower and the upper slot opening can be designed to be complementary to the cross section of the double webbing and to the deflected lower and upper webbing, regardless of the seals used. It is particularly advantageous that the use of a double belt strap and a sandwich lock in the area of a feed opening allows the raw material to be fed into the container or grinding chamber in a freely falling or forced manner. An adjustable speed of the double belt depending on the distance of the lower pulley from the feed opening allows the raw material to go directly to the center of the mill.
- the main advantages of the device according to the invention are less constructional and machine-related expenditure for the material feed due to the possible arrangement of the sandwich lock above the grinding rollers in a lateral area of the mill housing or also in the connection area between the mill and classifier housing.
- the production engineering effort and the assembly effort for the sandwich lock and the double belt conveyor are relatively low.
- Another advantage is that the double belt conveyor, which can be arranged horizontally, vertically and at any angle of inclination, ensures continuous material feeding. In order to associated is a lower energy consumption of the facility and an optimized grinding and classifying process.
- Fig. 1 is a partial view of a grinding plant with a
- Feeding device for raw material according to the prior art
- FIG. 2 shows a partial view of a grinding plant with a feed device according to the invention
- Fig. 3 is a perspective view of a feed device according to the invention on a wall of a container and shown in sections
- Fig. 4 is a highly schematic representation of a
- Double webbing with enclosed material and a deflected lower and upper webbing Double webbing with enclosed material and a deflected lower and upper webbing.
- the partial view of a grinding plant 2 shown in FIG. 2 initially has, analogously to FIG. 1, which is described in the prior art, an airflow roller mill as a vertical mill 6 with airflow conveying and silos 37 in which the material to be comminuted in the vertical mill 6 is stored on.
- the feed device according to the invention has a double belt conveyor 3 as the conveying device and a lock (adapted to the double belt conveyor 3) as the feed device for the material brought in with the double belt conveyor 3, which is referred to below as the sandwich lock 5.
- This sandwich lock 5 is gas and / or pressure-tight in the area of a feed opening 11 (see FIG. 3) on the housing 10 of the vertical mill 6.
- the double belt conveyor 3 in the area of the silos 37 has a lower horizontal conveying area 30, which is adjoined by a vertical conveying area 31 which extends over an upper horizontal conveying area 32 into the sandwich lock 5.
- the double belt conveyor 3 can be aligned according to the particular circumstances and requirements of the system and, for example, also be arranged vertically and / or obliquely at any angle of inclination and / or horizontally over the entire conveying path.
- FIGS. 3 and 4 illustrate the design and arrangement of a sandwich lock 5 on a vertical mill 6 with air flow conveyance, only a region of the housing 10 being shown of the vertical mill 6.
- the sandwich lock 5 is box-shaped and has a housing 8 with an end face 28, which has an opening 23 for the double webbing 13 with an enclosed and, in particular, an airtight seal Material 4 (see Fig. 4).
- An end region 7 of the double belt conveyor 3 is arranged within the housing 8 and thus included in the pressure system of the sandwich lock 5 and the vertical mill 6 via the feed opening 11.
- the double webbing 13 with the material accommodated therein and the sandwich lock 5 are sealed, the sandwich lock 5 being shown in FIG. 3 without a front side wall in order to show the formation of the end region 7 and the deflection of the double webbing 13 ,
- the double webbing 13 has a lower webbing 14 and an upper webbing 15.
- the lower 14 and the upper webbing 15 are trough-shaped and lie mirror-symmetrically on top of one another in the region of material-free overlap areas 19, so that a receiving space 20 with a biconvex cross section is formed (see also Fig. 4).
- suitable sealing devices which are expediently arranged in front of the sandwich lock 5 (not shown), the double webbing 13 is preferably sealed several times so that the entry of false air into the sandwich lock 5 and into the vertical mill 6 can largely be ruled out.
- the end region 7 of the double belt conveyor 3 accommodated within the sandwich lock 5 has a lower deflection drum 17, which is arranged relatively close to the feed opening 11.
- An upper pulley 18 for the upper webbing 15 is arranged offset, so that the material lying on the lower webbing 14 (not shown) reaches a discharge point formed by the pulley 17 and depending on the speed of the double webbing 13 and depending on the distance to the feed opening 11 is dropped almost centrally into the vertical mill 6.
- the deflecting drums 17, 18 are designed to be complementary to the trough-shaped and mirror-symmetrical belt straps 14, 15. Corresponding to the almost flat material-free overlap regions 19, the deflection drums 17, 18 are provided with circular cylindrical end regions 21, while between the circular cylindrical end regions 21 complementary to the trough-shaped belt straps 14, 15, the deflection drums 17, 18 are designed almost as a single-shell hyperboloid.
- seals are provided, of which in 3 only an upper sealing area 34 of a seal 33 of the passage opening 23 and a lower sealing area 35 are shown.
- the upper sealing area 34 has height-adjustable sealing lamellae which rest resiliently or rubbingly on the upper sealing band 15.
- the lower sealing area 35 of the seal 33 is only partially shown. Seals of the lower slot opening 24 and the upper slot opening 25 are not shown. These seals and the lower sealing area 35 can in particular be designed as a labyrinth seal.
- FIG. 4 shows the design and arrangement of the double webbing 13 between the upper, deflected webbing 15 and the undersidenic, deflected belt strap 14.
- support rollers 26 are arranged to support the trough-shaped region of the deflected lower strap 14.
- the upper deflected belt strap 15 does not require any deflection rollers.
- the double webbing 13 between the deflected lower and upper webbing 14, 15 has the regrind 4 to be fed in the receiving space 20, which is biconvex in cross section.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Structure Of Belt Conveyors (AREA)
- Disintegrating Or Milling (AREA)
- Vending Machines For Individual Products (AREA)
- Centrifugal Separators (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Einrichtung zum Zuführen von MaterialDevice for feeding material
Die Erfindung betrifft eine Einrichtung zum Zuführen von Material in einen Behälter gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for feeding material into a container according to the preamble of 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 particularly suitable for the material feed of containers and devices in which the material is stored, processed or processed under negative or positive pressure.
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 is grinding plants in which raw material is fed to vertical mills with air flow conveying, for example air flow roller mills, with the aid of conveying devices and a feed device for grinding.
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 with raw material to be comminuted, for example pre-dried raw lignite or cement clinker and additives, a two- or three-valve lock or a cellular wheel lock, which ensure the required sealing of an airflow mill driven under negative or positive pressure.
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 costs associated with the use of these material locks, which increase the overall costs of a grinding system considerably, are disadvantageous. This is due in particular to the overall height of the flap and cellular wheel sluices themselves their arrangement due to the vertical discharge of material can be attributed to the level of a sifter ceiling. In addition to the costs caused by the height of the building, expenses for the mechanical and electrical equipment as well as for assembly are required, 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.1 shows a partial view of a grinding plant 2 in the area of an airflow roller mill as a vertical mill 6 with airflow conveyance. A rotary feeder 45 is used as the feed device for the regrind to be ground, which is fed from a silo 37 to a conveyor 43. The cellular wheel sluice 45 is arranged above a classifying ceiling 46 of the vertical mill 6. The regrind (not shown) reaches the grinding chamber 12 of the vertical mill 6 via an inlet chute 47. FIG. 1 illustrates the considerable height of the building, the structural components required and the length of the conveyor 43, which increase the total cost of the grinding system.
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 Förderlei ung, 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 Förder- leitung 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 a device for feeding raw coal to a pressurized mill is known. In order to minimize the pressure shock-resistant parts, the feed device has a first conveyor line after a silo, then a feed hopper, a second conveyor line, an intermediate bunker and a third conveyor line. The third conveyor line is a trough chain conveyor, which serves as an allotment element and is completely arranged in a pressure-shock-proof housing. The raw coal from the third conveyor passes through a feed shaft that opens into the middle of the classifier's ceiling. pipe into the mill. The entire feed device has a relatively large overall height due to the stacked bunkers and horizontally arranged three delivery lines and requires a corresponding investment, assembly and energy expenditure.
Ein Elevator-Förderer für Schüttgüter mit zwei endlosen Förderbändern, welche an ihren Längsrändern aneinanderlie- gen 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 which lie against one another at their longitudinal edges and at least one of which runs in a vertical area within an air box is known from DE 27 26 038 C2. For the necessary sealing of the conveyor belts on the edge, sealing strips and pretensioning means fastened to the air box are provided.
Ein Doppelgurtbandförderer ist aus der DE 34 32 553 AI 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 AI. In order to be able to transport sticky, mud-shaped and free-flowing bulk goods safely and without risk of segregation, the shroud belt has longitudinal and transverse reinforcements between which dents are formed to accommodate the goods to be conveyed. The dents or conveying spaces are closed on the other side by the second flat belt of the conveyor belt. Continuous longitudinal guides consist of U-shaped steel profile sections and ensure the necessary sealing of the delivery rooms.
Der Erfindung liegt die A u f g a b e 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 und eine optimierte Materialaufgabe und einen effizienten Mahl- und Sichtpro- zess ermöglicht. 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.The invention is based on the object of creating a device for feeding material into a container, in particular raw material to be comminuted into a vertical mill, which has a particularly simple and cost-saving construction and an optimized material feed and an efficient grinding and classifying process. zess enables. According to the invention the object is achieved by the characterizing features of claim 1. Useful and advantageous configurations are contained in the subclaims and in the description of the figures.
Ein Grundgedanke der Erfindung kann darin gesehen werden, eine Aufgabeeinrichtung zur Aufnahme eines Endbereichs einer Fördereinrichtung für das Material auszubilden und die Aufgabeeinriσhtung mit dem darin aufgenommenen Endbereich der Fördereinrichtung in das Drucksystem des Behälters, beispielsweise einer Vertikalmühle mit Luftstromförderung, einzubeziehen.A basic idea of the invention can be seen in forming a feeding device for receiving an end region of a conveying device for the material and incorporating the feeding device with the end region of the conveying device accommodated therein into the pressure system of the container, for example a vertical mill with air flow conveying.
Insbesondere für Mahlanlagen und die Rohmaterialbeschickung einer Luftstrom-Wälzmühle ist es vorteilhaft, wenn als Fördereinrichtung für das Rohmaterial ein Doppelgurtförderer eingesetzt wird, welcher endseitig mit einer entsprechend ausgebildeten Schleuse als Aufgabeeinrichtung verbunden ist. 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 Elektro- ausrüstung erreicht.In particular for grinding plants and the raw material loading of an airflow roller mill, it is advantageous if a double belt conveyor is used as the conveying device for the raw material, which is connected at the end to a correspondingly designed lock as a feeding device. The feed device according to the invention means that material locks, such as two-flap or three-flap locks or cellular wheel locks, are no longer required and considerable cost savings are achieved in the area of construction, mechanical equipment and the associated electrical equipment.
Eine an einen Doppelgurtförderer integrierbare Schleuse kann als eine Sandwichschleuse ausgebildet sein, welche im Vergleich zu den bekannten Materialschleusen eine außerordentlich einfache Konstruktion und eine relativ geringe Bauhöhe aufweist. Dadurch werden auch die Fertigungs- und Montagekosten gesenkt. Es ist besonders vorteilhaft, dass die Einrichtung eine seitliche Zuführung und Aufgabe des Materials erlaubt und etwa 7 bis 8 m Gebäudehöhe eingespart werden können. Weitere Vorteile sind mit der möglichen kontinuierlichen Materialförderung und -aufgäbe verbunden, wobei die Förderung horizontal, vertikal und/oder schräg in jedem Neigungswinkel erfolgen kann. Während bei den bekannten Materialschleusen ein diskontinuierlicher Materialeintrag erfolgt, ist mit der erfindungsgemäßen Förder-Aufgabe- einheit 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.A lock that can be integrated on a double belt conveyor can be designed as a sandwich lock, which has an extraordinarily simple construction and a relatively low overall height in comparison to the known material locks. This also reduces manufacturing and assembly costs. It is particularly advantageous that the device allows the material to be fed in and fed in from the side and saves about 7 to 8 m of building height can be. Further advantages are associated with the possible continuous material conveying and feeding, the conveying being possible horizontally, vertically and / or obliquely at any angle of inclination. While in the known material locks a discontinuous material entry takes place, a continuous material flow entry can be realized with the conveying-task unit according to the invention. This results in possibilities for optimizing a plant and in particular a grinding and classifying process in a grinding plant, which leads to a reduction in energy consumption and significant ecological advantages.
Es ist zweckmäßig, die Sandwichschleuse mit einem gas- und/ oder druckdichten Gehäuse auszubilden, 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 mate- rialseitig ein Falschlufteintrag weitgehend ausgeschlossen werden kann.It is expedient to design the sandwich lock with a gas-tight and / or pressure-tight housing which adjoins the rear of a container wall or a mill housing and is connected to the grinding and / or classifying chamber of the mill via a feed opening. By transporting the material to be fed in a double webbing and sandwiching it between a lower and an upper webbing, there is the advantageous possibility of an airtight closure of the double webbing, so that a false air entry can largely be excluded on the material side.
Es ist zweckmäßig, dass Doppelgurtband mit dem darin eingeschlossenen Material vor der Sandwichschleuse insbesondere mehrere Male abzudichten. Als Dichtungseinrichtungen sind Rollendichtungen, Schleif ichtungen 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. 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.It is expedient to seal the double webbing with the material enclosed in it in particular several times in front of the sandwich lock. Roller seals, grinding seals and bristle seals are suitable as sealing devices. For a sealed material feed and a smooth material entry into the vertical mill without false air entry or exit, it is expedient to provide the double belt band formed by a lower and upper belt band with sealable material-free overlapping areas, which are expediently designed to be almost flat. The end area of the double belt conveyor which reaches into the sandwich lock has deflection drums for the lower and upper belt strap. The deflection drums are expediently designed to be complementary to the belt straps and are arranged offset in the sandwich lock in such a way that the upper belt strap is arranged in front of the lower deflection drum to release the material in the conveying device. The lower deflection drum serves as a dropping device for the material and is arranged in such a way to the feed opening in the container or in the vertical mill that the material gets into the feed opening and the container or the vertical mill.
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 belt straps are trough-shaped between the edge-side, essentially flat overlapping areas and are mirror-inverted with their overlapping areas, a cross-sectionally biconvex receiving space for the material to be transported is formed, which can be sealed particularly easily.
Da aufgrund der Aufgabeöffnung im Behälter bzw. in der Vertikalmühle in dem Gehäuse der Sandwichschleuse derselbe Druck wie in der Vertikalmühle herrscht, sind Abdichtungen im Bereich einer Durchtrittsöffnung für das Doppelgurtband mit eingeschlossenem Material und einer unteren und oberen schlitzförmigen Öffnung für das untere bzw. obere umgelenkte und zurückgeführte Gurtband erforderlich.Since the same pressure as in the vertical mill prevails in the housing of the sandwich lock due to the feed opening in the container or in the vertical mill, seals are in the area of a passage opening for the double webbing with enclosed material and a lower and upper slit-shaped opening for the lower and upper deflected and returned webbing required.
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 expediently provided for the returning upper webbing and for the returning lower webbing. The passage opening arranged between the slot openings is advantageously designed to be height-adjustable at least in an upper sealing area for adaptation to a differently curved upper belt webbing. For example, sealing lamellae can be provided be which can be pressed resiliently or rubbing against the upper webbing of the double webbing. The lower webbing is expediently relatively stable and provided with a constant trough for receiving the material. In order to maintain the trough-shaped design even with the deflected and retracted lower belt webbing, it makes sense to arrange support rollers accordingly. A labyrinth seal can be arranged as a seal.
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 designed to be complementary to the cross section of the double webbing and to the deflected lower and upper webbing, regardless of the seals used. It is particularly advantageous that the use of a double belt strap and a sandwich lock in the area of a feed opening allows the raw material to be fed into the container or grinding chamber in a freely falling or forced manner. An adjustable speed of the double belt depending on the distance of the lower pulley from the feed opening allows the raw material to go directly to the center of the mill.
Die wesentlichen Vorteile der erfindungsgemäßen Einrichtung sind ein geringerer bautechnischer und maschinenseitiger Aufwand für die Materialzuführung aufgrund der möglichen 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 constructional and machine-related expenditure for the material feed due to the possible arrangement of the sandwich lock above the grinding rollers in a lateral area of the mill housing or also in the connection area between the mill and classifier housing. The production engineering effort and the assembly effort for the sandwich lock and the double belt conveyor are relatively low. Another advantage is that the double belt conveyor, which can be arranged horizontally, vertically and at any angle of inclination, ensures continuous material feeding. 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 DarstellungThe invention is explained below with reference to a drawing; in this show in a highly schematic representation
Fig. 1 eine Teilansicht einer Mahlanlage mit einerFig. 1 is a partial view of a grinding plant with a
Zuführeinrichtung für Rohmaterial gemäß dem Stand der Technik;Feeding device for raw material according to the prior art;
Fig. 2 eine Teilansicht einer Mahlanlage mit einer erfindungsgemäßen Zuführeinrichtung;2 shows a partial view of a grinding plant with a feed device according to the invention;
Fig. 3 eine perspektivische Darstellung einer erfindungsgemäßen Zuführeinrichtung an einer ausschnittsweise gezeigten Wand eines Behälters undFig. 3 is a perspective view of a feed device according to the invention on a wall of a container and shown in sections
Fig. 4 eine stark schematisierte Darstellung einesFig. 4 is a highly schematic representation of a
Doppelgurtbandes mit eingeschlossenem Material sowie eines umgelenkten unteren und oberen Gurtbandes.Double webbing with enclosed material and a deflected 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. Diese Sandwichschleuse 5 ist gas- und/oder druckdicht im Bereich einer Aufgabeöffnung 11 (siehe Fig. 3) am Gehäuse 10 der Vertikalmühle 6 befestigt.The partial view of a grinding plant 2 shown in FIG. 2 initially has, analogously to FIG. 1, which is described in the prior art, an airflow roller mill as a vertical mill 6 with airflow conveying and silos 37 in which the material to be comminuted in the vertical mill 6 is stored on. The feed device according to the invention has a double belt conveyor 3 as the conveying device and a lock (adapted to the double belt conveyor 3) as the feed device for the material brought in with the double belt conveyor 3, which is referred to below as the sandwich lock 5. This sandwich lock 5 is gas and / or pressure-tight in the area of a feed opening 11 (see FIG. 3) on the housing 10 of the vertical mill 6.
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 prior art grinding system in FIG. 1 and the grinding system according to FIG. 2 with a material feed according to the invention, which has a sandwich lock 5 and a double belt conveyor 3 interacting therewith, shows that a significantly lower building height in the grinding system 2 of FIG 2 is reached.
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 exemplary embodiment, the double belt conveyor 3 in the area of the silos 37 has a lower horizontal conveying area 30, which is adjoined by a vertical conveying area 31 which extends over an upper horizontal conveying area 32 into the sandwich lock 5. The cost savings associated with the lower overall height and the reduced system and components are obvious. In principle, the double belt conveyor 3 can be aligned according to the particular circumstances and requirements of the system and, for example, also be arranged vertically and / or obliquely at any angle of inclination and / or horizontally over the entire conveying path.
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.FIGS. 3 and 4 illustrate the design and arrangement of a sandwich lock 5 on a vertical mill 6 with air flow conveyance, only a region of the housing 10 being shown of the vertical mill 6. The sandwich lock 5 is box-shaped and has a housing 8 with an end face 28, which has an opening 23 for the double webbing 13 with an enclosed and, in particular, an airtight seal Material 4 (see Fig. 4). An end region 7 of the double belt conveyor 3 is arranged within the housing 8 and thus included in the pressure system of the sandwich lock 5 and the vertical mill 6 via the feed opening 11. In order to avoid the entry or exit of false air, the double webbing 13 with the material accommodated therein and the sandwich lock 5 are sealed, the sandwich lock 5 being shown in FIG. 3 without a front side wall in order to show the formation of the end region 7 and the deflection of the double webbing 13 ,
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 double webbing 13 has a lower webbing 14 and an upper webbing 15. In order to form a receiving space 20 for the material 4 (FIG. 4), the lower 14 and the upper webbing 15 are trough-shaped and lie mirror-symmetrically on top of one another in the region of material-free overlap areas 19, so that a receiving space 20 with a biconvex cross section is formed (see also Fig. 4). By suitable sealing devices, which are expediently arranged in front of the sandwich lock 5 (not shown), the double webbing 13 is preferably sealed several times so that the entry of false air into the sandwich lock 5 and into the vertical mill 6 can largely be ruled out.
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 region 7 of the double belt conveyor 3 accommodated within the sandwich lock 5 has a lower deflection drum 17, which is arranged relatively close to the feed opening 11. An upper pulley 18 for the upper webbing 15 is arranged offset, so that the material lying on the lower webbing 14 (not shown) reaches a discharge point formed by the pulley 17 and depending on the speed of the double webbing 13 and depending on the distance to the feed opening 11 is dropped almost centrally into the vertical mill 6.
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.The deflecting drums 17, 18 are designed to be complementary to the trough-shaped and mirror-symmetrical belt straps 14, 15. Corresponding to the almost flat material-free overlap regions 19, the deflection drums 17, 18 are provided with circular cylindrical end regions 21, while between the circular cylindrical end regions 21 complementary to the trough-shaped belt straps 14, 15, the deflection drums 17, 18 are designed almost as a single-shell hyperboloid.
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.In order to ensure the required sealing of the sandwich lock 5 from atmospheric pressure also in the area of the front passage opening 23 and a lower slot opening 24 for the deflected lower webbing 14 and an upper slot opening 25 for the deflected upper webbing 15, seals are provided, of which in 3 only an upper sealing area 34 of a seal 33 of the passage opening 23 and a lower sealing area 35 are shown. The upper sealing area 34 has height-adjustable sealing lamellae which rest resiliently or rubbingly on the upper sealing band 15. The lower sealing area 35 of the seal 33 is only partially shown. Seals of the lower slot opening 24 and the upper slot opening 25 are not shown. These seals and the lower sealing area 35 can in particular be designed as a labyrinth seal.
Fig. 4 zeigt Ausbildung und Anodnung des Doppelgurtbandes 13 zwischem dem oberen, umgelenkten Gurtband 15 und des un- teren, 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 Auf- nahmeraum 20 das zuzuführende Mahlgut 4 auf. 4 shows the design and arrangement of the double webbing 13 between the upper, deflected webbing 15 and the underside teren, deflected belt strap 14. To support the trough-shaped region of the deflected lower strap 14, support rollers 26 are arranged. In principle, the upper deflected belt strap 15 does not require any deflection rollers. The double webbing 13 between the deflected lower and upper webbing 14, 15 has the regrind 4 to be fed in the receiving space 20, which is biconvex in cross section.
Claims
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 true EP1372858A2 (en) | 2004-01-02 |
| EP1372858B1 EP1372858B1 (en) | 2004-12-01 |
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| EP02737910A Expired - Lifetime EP1372858B1 (en) | 2001-04-03 | 2002-04-02 | Device for supplying a material |
Country Status (12)
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| US (1) | US6896213B2 (en) |
| EP (1) | EP1372858B1 (en) |
| JP (1) | JP4026842B2 (en) |
| KR (1) | KR100868826B1 (en) |
| CN (1) | CN1265889C (en) |
| AT (1) | ATE283730T1 (en) |
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| DE (2) | DE10116550B4 (en) |
| DK (1) | DK1372858T3 (en) |
| ES (1) | ES2233825T3 (en) |
| WO (1) | WO2002081090A2 (en) |
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| 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 |
| CN110899212A (en) * | 2019-12-24 | 2020-03-24 | 江苏奥星电子有限公司 | An automatic cleaning device for aluminum shell |
| EP4142948B1 (en) | 2020-04-29 | 2024-05-22 | Fidetechnology Lda | Apparatus and method for grinding particulate material |
| EP3903940A1 (en) * | 2020-04-29 | 2021-11-03 | Mads Jespersen | Cement production 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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|---|---|---|---|---|
| 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, 59269 Beckum | Mill with butterfly valve |
| 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 |
| EP1338531B1 (en) * | 2002-02-21 | 2004-07-28 | Innova Patent GmbH | Installation for conveying bulk materials |
| KR200419250Y1 (en) | 2006-03-31 | 2006-06-16 | 주식회사 에이원코리아 | Crushing and conveying device for synthetic water support |
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- 2002-04-02 DE DE50201679T patent/DE50201679D1/en not_active Expired - Lifetime
- 2002-04-02 CA CA002445424A patent/CA2445424C/en not_active Expired - Fee Related
- 2002-04-02 ES ES02737910T patent/ES2233825T3/en not_active Expired - Lifetime
- 2002-04-02 AU AU2002312787A patent/AU2002312787A1/en not_active Abandoned
- 2002-04-02 EP EP02737910A patent/EP1372858B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02081090A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030094319A (en) | 2003-12-11 |
| DK1372858T3 (en) | 2005-03-29 |
| ATE283730T1 (en) | 2004-12-15 |
| CN1531462A (en) | 2004-09-22 |
| US6896213B2 (en) | 2005-05-24 |
| JP2004534634A (en) | 2004-11-18 |
| CA2445424A1 (en) | 2002-10-17 |
| JP4026842B2 (en) | 2007-12-26 |
| KR100868826B1 (en) | 2008-11-14 |
| US20040140177A1 (en) | 2004-07-22 |
| AU2002312787A1 (en) | 2002-10-21 |
| EP1372858B1 (en) | 2004-12-01 |
| CN1265889C (en) | 2006-07-26 |
| DE50201679D1 (en) | 2005-01-05 |
| WO2002081090A2 (en) | 2002-10-17 |
| DE10116550A1 (en) | 2002-10-17 |
| ES2233825T3 (en) | 2005-06-16 |
| CA2445424C (en) | 2007-09-04 |
| DE10116550B4 (en) | 2005-06-02 |
| WO2002081090A3 (en) | 2003-01-03 |
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