• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an apparatus and a method for unloading a stockpile (1) with an elongate unloading bridge (2), the support wheels (5, 6) has at both ends and the horizontally at least in one direction substantially transverse to its longitudinal direction is movable. The unloading bridge comprises at least one carriage (7) movable along it, which has at least one rake (8), which runs essentially transversely to a longitudinal direction of the unloading bridge (2) and is inclined to a position between the horizontal and the vertical. Below the unloading bridge (2) at least two adjacent auger (14, 15) are arranged and extend between the ends of the unloading bridge (2), and each auger (14) is tet ausgestat tet, that of the adjacent auger ( 15) is opposite, and is rotatable in a direction opposite to that of the respective adjacent screw conveyor (15). The augers (14, 15) are positioned side by side so as to leave a clearance (19) between them and, due to the design of the turns and directions of rotation, are arranged to form a material dam (21) between them in the clearance (19).
    公开号:AT513696A2
    申请号:T9082013
    申请日:2013-11-27
    公开日:2014-06-15
    发明作者:
    申请人:Metso Paper Inc；
    IPC主号:
    专利说明:

    P13488 METHOD AND DEVICE FOR UNLOADING A WAREHOUSE Field of the Invention
    The invention relates to a method and an apparatus for unloading material from a warehouse. The invention primarily relates to the unloading of wood chips and pellet stores, but it can also be used for other granular materials of the same kind.
    State of the art
    For storing wood chips piles, the use of a method is common, are accumulated in the wood chips to an annular pile with a diameter of typically 80 to 150 m and a height of 20 to 30 m. In this mode, new chips are added at one end of the heap and stored chips are unloaded from the other end of the heap.
    New chips are added to the reservoir from above by a belt conveyor positioned in the conveyor bridge at the upper part of a tower-like construction in the center of the annular heap. In the upper part of the tower and under the conveyor bridge there is a boom mounted on the tower with a bearing that constantly rotates about it. The chips are conveyed through a shaft to a belt conveyor located in the boom, forming a heap surrounding the tower. The heap is unloaded by means of a rotating unloading bridge, which constantly rotates around the tower in the same direction and is mounted at one end with pivot bearings at the bottom of the tower, and by means of an unloading conveyor erected in the bridge. In addition, a rake-like grid is arranged in the unloading bridge, which can reciprocate by means of a drive along the direction of the unloading bridge; This grille is used to clear the heap of the unloading conveyor. The unloading conveyor spits the chips to the conveyor under the chip store by means of a shaft located at the base of the tower. A known curved chip store has been described, for example, in the publication EP 1 587 750, in which a screw conveyor is used as the unloading component. 2/13 -2- P13488 • · • · ··
    For storing granular material, a method is also used in which the material is piled up into a straight stockpile having a width typically between 20 to 60 m and a height of 10 to 20 m. There is no limit to the length of the stockpile. In the process, new material is added, for example, by means of a separate moving stacker running alongside and along the stockpile. The material can also be added using a belt conveyor that runs in a bridge above the heap and parallel to the heap. The material is discharged at the unloading bridge, which moves back and forth in the area of the heap and in the direction of the heap, the length of the body of the unloading bridge being greater than the heap. The body of the bridge is supported at both ends on rails that run parallel to the heap and at ground level outside the heap. The unloading component, which is located in the lower part of the bridge, is formed by a chain conveyor with scratches; this chain conveyor moves the material to the other end of the unloading bridge. From the unloading end, the material is further conveyed by means of a conveyor belt. The material is unloaded from the top of the heap and cleared by means of a rake, which travels in the body of the bridge, into the reach of the chain scrapers, as in the method of publication EP 1 587 750, in which a screw conveyor instead of a screw conveyor Drag conveyor is located. The heap is unloaded from the direction of travel ago. Since the unloading bridge can run in both directions, there is a rake on both sides of the bridge to clear the heap.
    The disadvantage of a scraper chain conveyor is its limited capacity. The maintenance costs are also significant and increase with increasing discharge capacity. With the help of a screw conveyor, a larger capacity, up to over 2000 m3 / h of loose material, is achieved at a lower design cost. However, the use of a screw in a moving in both directions Brückenentlader is problematic because the screw a chute (trough wall) as an abutment surface for transporting the material needed. In a discharger with a rotating bridge, the chute is located at the opposite side of the screw with respect to the dump to be unloaded. In a stockpile, a fixed chute prevents the loader from going to the other direction. On the other hand, a removable chute is tricky, and anyway, the transport capacity of the auger would be worse if it ran in the other direction. 3/13 -3- P13488 • ···
    Objectives and summary of the invention
    The device according to the invention is characterized in that the unloading bridge has at least two adjacent augers running below the unloading bridge and between the ends of the unloading bridge, each auger being provided with a thread opposite that of a respective adjacent auger and each auger is rotatable in one direction, which is opposite to a respective adjacent auger. Further, the augers are positioned side by side in a manner to form a space therebetween, and due to the design of the turns and directions of rotation, the augers are adapted to form a material dam in the space between them.
    The inventive method is characterized in that along the direction of the discharge bridge, a second screw conveyor is rotated in a second direction, which is opposite to the direction of rotation of a first screw conveyor. In addition, the second auger is provided with a second turn opposite to a first turn of the first auger, whereby upon rotation of the augers in the space between them, a dam is formed from the material to be unloaded.
    By means of the solutions according to the invention a larger discharge capacity is achieved than by means of a discharger with a scraper conveyor. In addition, since in the solutions according to the invention no rear chute is needed, it is unnecessary to move the rear chute of the auger when the unloading direction of the unloader is changed. Further, since the unloader according to the invention is symmetrical in terms of its operation, its capacity in both directions is equally good.
    drawings
    The invention and its details will be described in more detail below with reference to the accompanying drawings, in which:
    Fig. 1 shows a straight unloader for unloading a typical stockpile-type material pile by means of a drag conveyor; 4/13 PI3488 • · • • • • • ···
    Fig. 2 shows a straight running unloading bridge for unloading a heap by means of screws according to an embodiment of the invention; and
    FIG. 3 shows the cross-section A-A of FIG. 2.
    Detailed description of the invention
    Fig. 1 shows a typical unloading bridge 2 for unloading a pile 1 of the type of a stock pile. The heap 1 is placed in a direction transverse to their length direction is. The device with which the heap is formed is not shown. The unloading bridge 2 as shown here is used in particular for the storage of various minerals. The unloading bridge 2 is mounted on rails 3, 4, which are arranged in a longitudinal direction to the heap 1 on both sides of the heap outside, and drives on this in both directions. The support is formed by a plurality of support wheels 5, 6, which run along the rails 3, 4. To move the unloading bridge 2, at least one wheel (not shown) provided with a drive is provided on both sides. The unloading bridge 2 extends in a direction perpendicular to the heap 1 direction. The unloading bridge 2 is equipped with a trolley 7, which runs along the bridge. Notwithstanding the figure, it is possible to have several trolleys 7. The trolley 7 or the trolleys have rakes 8 on both sides of the bridge 2. The rake clears material from the dump 1 from the side of the running direction of the bridge. An endless scraper conveyor 9, attached to the bridge 2 and passing under the bridge, collects the material evacuated and transports it to the discharge end of the bridge 10. At the unloading end, the drag conveyor 9 rises along the ramp 11 and transports the material to the Ramp 11 via the running rail 4. The material falls from a rear end 12 of the scraper conveyor 9 on an underlying conveyor belt 13, which transports the material for further processing. The scraper conveyor 9 is symmetrical with respect to its running direction, which is why it operates in the same way regardless of the running direction of the bridge 2.
    Figures 2 and 3 show a reciprocating unloading bridge 2 adapted for unloading a material store 1 for wood chips or other granular material according to an embodiment of the invention. Notwithstanding the device of FIG. 1, the unloading bridge 2 is provided with two adjacent screws 14, 15, with the help of which the chips cut loose by the rake 8 are moved to the unloading end 10 of the bridge 5/13 -5-P13488. At the discharge end, the chips are transported by one or more separate screws 16, 17 onto the belt conveyor 13. The screws 14, 15 shown in the cross-sectional view of Fig. 3 have opposite turns. There is a free space 19 between the screws. When the bridge moves in the direction of the arrow N, the first screw 14 forms behind it a dam 21 from the chips 20 to be unloaded and transports most of the chips on the rear 22 of the screw 14 against the latter Dam 21. The second screw 15 moves the chips with their leading edge 23 and unloads the dam 21 when the bridge 2 moves in the direction of the arrow N. The amount of chips that are removed during unloading of the dam 21 is so small that a transport by means of the leading edge 23 of the screw 14 is possible.
    A device for unloading a stockpile according to an embodiment of the invention comprises a long unloading bridge 2. Preferably, the unloading bridge 2 has a length which is greater than the width of the warehouse 1 to be unloaded. The unloading bridge 2 is equipped at both ends with a plurality of support wheels 5, 6, by means of which the unloading bridge 2 is movable at least in one direction substantially transversely to its longitudinal direction. The device furthermore has at least one carriage 7 which can be moved along the unloading bridge 2 in its longitudinal direction. The carriage 7 is provided with at least one rake 8 which is substantially transverse to the longitudinal direction of the unloading bridge 2 and inclined to a position between the horizontal and the vertical. Preferably, the rake 8 is set in a slope which is specific to the material to be cleared at the dump 1. The device further includes at least two augers 14, 15 under the unloading bridge 2. The augers 14, 15 extend between the ends of the unloading bridge 2, parallel to the unloading bridge 2 and with a length which is preferably at least as large as the width of the storage pile 1. The augers 14, 15 are provided with mutually opposite turns and are rotatable in opposite directions, whereby each screw can transport material in the same direction to the discharge end 10 back. Furthermore, the screw conveyors 14, 15 are positioned relative to each other so that a free space 19 remains between them. The turns and directions of rotation of the screw conveyors 14, 15 must be set up such that the screw conveyors 14, 15 form a dam 21 of the material 20 to be discharged between them as they rotate in the free space 19. In other words, the augers must push each other inwards. The dam is formed when the augers 14,15 move the material to be unloaded towards the discharge end 10 of the unloading bridge. This allows the screws to convey material from the storage pile to the dam 21. When the screw conveyors 14, 15 move the material to be unloaded to the dam 21, it acts Dam 21 as a chute for the snails (14,15).
    In a device according to another embodiment of the invention, at least one carriage 7 is equipped with two opposite rakes 8, which extend transversely to the longitudinal direction of the unloading bridge 2, wherein the rakes 8 are inclined in a position between the horizontal and the vertical. This allows the unloader to drive in both directions. Other cart / rake configurations are possible. Each carriage 7 may e.g. be equipped with one or more side by side and / or oppositely arranged rake 8. A device according to the invention may also comprise a plurality of carriages.
    In a device according to an embodiment of the invention, substantially parallel rails 3, 4 extend on both sides of an elongated storage pile 1 along the longitudinal direction of this storage pile 1. A device according to one of the above-described embodiments of the invention is placed on the rails 3, 4 to be movable. Preferably, the support wheels 5, 6, which are located at the end of the unloading bridge, are adapted to cooperate with the rails. Furthermore, at least one rake 8 is tilted with respect to the longitudinal direction of the storage pile 1 against a transverse end of the storage pile. In addition, the end 10 of the screw conveyors 14,15 of the unloading bridge 2 is on the side of the traveling direction, i. the unloading end 10, equipped with unloading conveyors 16,17, with which the material discharged from the storage heap can be moved away from the space between the rails 3,4, to be treated further.
    In a method according to an embodiment of the invention, at least one carriage 7 of the unloading bridge 2 and at least one rake 8 are moved therein in the longitudinal direction of the unloading bridge when the at least one rake 8 is tilted against a transverse end with respect to the longitudinal direction of the storage pile 1 , The movement of the rake 8 against the end face of the storage pile 1 causes the material in the storage pile 1 to fall to the bottom of the end of the storage pile 1. Thus, by means of the rake 8, the material stored in the upper regions of the storage pile 1 is made to fall to lower heights, from where it can be further transported by means of the unloader. The unloading bridge 2 becomes transverse to its longitudinal direction to the material 20, which is at the bottom of the material to the bottom of the 7/13 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• •••••
    -7-
    End of the stockpile 1 has fallen, proceed, so that the screws 14, 15 come under the discharge bridge 2 in contact with the material. Furthermore, in the direction of travel of the unloading bridge 2, a first conveyor screw 14, which is equipped with a first thread, is rotated in a first direction. Accordingly, in the direction of travel of the unloading bridge, a second auger 15, which is equipped with a second thread, which is set opposite to the first thread, is rotated in a second direction. The threads and directions of rotation of the screw conveyors 14, 15 must be arranged so that they form a dam 21 of the material 20 to be unloaded in a free space 19 between them. This allows the screws 14,15 to convey material from the storage dump to the dam 21. Preferably, the above operations are performed substantially simultaneously, with the unloading of the storage pile accomplished as a continuous operation. During the unloading process, during its rotation with respect to the direction of travel of the unloading bridge 2, the first auger 14 forms behind it a dam 21 of the material 20 to be unloaded. The dam 21 thus formed acts as a rear chute for the auger 14, against this rear chute material to be unloaded is moved from the rear edge 22 of the auger 14 to the unloading end 10 of the unloading bridge 2. The conveyor screw 15, which is located at the rear in relation to the direction of travel of the unloading bridge 2, pushes the material to be unloaded forwards and thus contributes to the cohesion of the dam 21. The leading edge 23 of the rear auger 15 discharges material that is in the dam 21 as the unloading bridge 2 advances.
    When the bridge 2 moves in an opposite direction (not in the direction N), the roles of the screws 14, 15 are interchanged in terms of their operation. However, they still transport the chips in the same direction to the discharge end 10 of the bridge 2. Therefore, the dam 21 always acts as a rear chute of the leading screw, so that a separate structural chute, which is movable between the sides of the unloading bridge 2, is unnecessary when the direction of travel of the bridge is changed. 8.13
    权利要求:
    Claims (5)
    [1]
    Claims 1. A device for unloading a storage pile (1), comprising - an elongate unloading bridge (2) which has support wheels (5, 6) at both ends and which is horizontal at least in one direction substantially transverse to a longitudinal direction of the unloading bridge (2). is movable; - At least one along the unloading bridge (2) movable carriage (7), which has at least one rake (8) which is substantially transverse to a longitudinal direction of the unloading bridge (2) and inclined in a position between the horizontal and the vertical; characterized in that the unloading bridge (2) comprises at least two adjacent augers (14, 15) disposed below the unloading bridge (2) and extending between the ends of the unloading bridge (2), each auger (14) being threaded and each screw conveyor (14) is rotatable in a direction opposite to that of a respective adjacent screw conveyor (15), the screw conveyors (14, 15) being juxtaposed are positioned between them, a free space (19) is formed, and wherein the screw conveyors (14,15) are arranged due to the design of the turns and directions to form a dam (21) in the free space (19) between them, whereby by means of the screws (14,15) a conveyance of material from the storage pile to the dam (21) can be achieved.
    [2]
    2. Apparatus according to claim 1, wherein the at least one along the unloading bridge (2) movable carriage (7) has two opposite rake (8) in a direction substantially transverse to a longitudinal direction of the discharge bridge (2) extending direction in opposite set direction, wherein both rake (8) are inclined to a position between the horizontal and the vertical.
    [3]
    A device for unloading a stockpile (1), comprising - rails (3, 4) extending substantially parallel to both sides of an elongated stockpile (1) along a longitudinal direction of the stockpile (1); 9/13 P13488 • ································································································································································································································ A device according to claim 1 or 2, which is arranged on the rails (3, 4) and can be moved along them; wherein at least one rake (8) is inclined against a transverse end of the storage pile (1) with respect to the longitudinal direction of the storage pile (1), and at the end (10) of the conveying direction of the screw conveyors (14, 15) a discharge conveyor (19 , 20) is arranged, through which of the stockpile (1) discharged material from the space between the rails (3, 4) and can be brought to a further processing.
    [4]
    4. A method for unloading a storage pile (1), comprising the steps of: - moving a carriage (7) and a rake (8) of a discharge bridge (2) in a longitudinal direction of the unloading bridge (2), wherein the rake (8) against transverse end of the stockpile (1) is tilted with respect to a longitudinal direction of the stockpile (1) to drop material stored in the stockpile (1) to the bottom of the end; - moving the unloading bridge (2) transversely to its longitudinal direction towards the material (20) which has fallen down to the bottom of said end; Rotating a first screw conveyor (14), which is arranged along the direction of travel of the unloading bridge (2), and which is equipped with a first turn, in a first direction; characterized in that along the direction of travel of the unloading bridge (2) a second auger (15) is rotated in a second direction opposite to the first direction, the second auger (15) being provided with a second turn, the first one Winding is opposite, whereby in a free space (19) between the screw conveyors (14, 15) a dam (21) is formed, whereby by means of the screws (14, 15), a conveyance of material from the storage pile to the dam can be achieved.
    [5]
    A method according to claim 4, wherein said operations are carried out substantially simultaneously. 10/13
    类似技术:
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    DE2748003A1|1978-04-27|DEVICE FOR TRANSPORTING BULK MATERIALS FROM A PILE
    BE1020389A3|2013-09-03|DEVICE FOR ARRANGING SHAPES ON PALLETS OR OTHER DOCUMENTS.
    DE4039934C2|1993-05-19|
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    DE202020106585U1|2022-01-07|Elevator for material drying apparatus and material drying apparatus
    DE3502342C2|1995-11-09|Device for collecting and conveying bulk goods
    EP1195223B1|2003-04-09|Collecting container for bulk material with a conveyor pump or with a suction tube
    DE4438106C2|1997-03-27|Bunker device for muddy material
    DE2851917C2|1982-10-28|Device for removing silage from the top
    DE1432040C3|1974-07-04|Process and system for the continuous homogenization of granular bulk material in large quantities
    DE102017104394A1|2018-09-06|Apparatus and method for feeding a continuous conveyor
    DE3021308A1|1982-01-07|Dump heap reclaiming installation - has bridge mounted rake with connectors contg. drive elements, imparting downward scraping and upward return motions
    AT373938B|1984-03-12|SNOWROOM UNIT
    DE3524778C1|1986-09-25|Device for picking up and removing field crops stored in piles
    同族专利:
    公开号 | 公开日
    CN103863834A|2014-06-18|
    US20140166442A1|2014-06-19|
    FI20126302A|2014-06-14|
    BR102013032091A2|2014-09-09|
    FI10459U1|2014-04-28|
    FI124539B|2014-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2383104A1|1977-03-12|1978-10-06|Worsley & Co Ltd G P|DEVICE FOR MOVING MATERIALS|
    JPS56500961A|1978-08-08|1981-07-16|
    US7195440B2|2004-05-27|2007-03-27|Lambert Charles F|Agricultural silo auger system apparatus and method|
    FI121140B|2007-06-06|2010-07-30|Metso Paper Inc|A method of supporting a unloader conveyor bridge|CN107399615A|2017-07-13|2017-11-28|北方重工集团有限公司|A kind of claw mechanism for the material that pitched on spiral reclaimer|
    US10479622B1|2018-08-10|2019-11-19|Fmw Förderanlangen Gmbh|Stacker-reclaimer apparatus|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI20126302A|FI124539B|2012-12-13|2012-12-13|Procedure and plant for unloading a stack layer|
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