US3306476A - Apparatus for reclaiming particulate material - Google Patents

Apparatus for reclaiming particulate material Download PDF

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Publication number
US3306476A
US3306476A US476887A US47688765A US3306476A US 3306476 A US3306476 A US 3306476A US 476887 A US476887 A US 476887A US 47688765 A US47688765 A US 47688765A US 3306476 A US3306476 A US 3306476A
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Prior art keywords
pile
bridge
face
carriage
trimmer
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US476887A
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English (en)
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Ralph C Mcmillan
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Link Belt Co
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Link Belt Co
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Priority to US476887A priority Critical patent/US3306476A/en
Priority to GB33836/66A priority patent/GB1102856A/en
Priority to BE685052D priority patent/BE685052A/xx
Priority to DE1966L0054236 priority patent/DE1456657B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
    • B65G65/16—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with rotary pick-up conveyors
    • B65G65/20—Paddle wheels

Definitions

  • the apparatus employed to remove the particulate material from the storage pile as it is needed and deliver it to the point of use is commonly referred to as a reclaimer.
  • Various types of machines have been developed heretofore to perform the operation of reclaiming particulate material from a storage pile.
  • the reclaimer is a traveling machine mounted t'o advance toward the storage pile and remove material from the pile in a predetermined pattern of operation.
  • the machine With an elongated pile the machine may be mounted on rails extending along opposite sides of the pile and the reclaimer guided and supported on such rails as it advances against the end face of the pile and removes material in a predetermined pattern.
  • the reclaiming machine may be mounted at one end to pivot around a vertical axis with the other end guided and supported on a circular track.
  • the material may be removed from the base of the pile by taking uniform cuts of material from the end face.
  • the multiple layers of material built into the pile by operation of the stacker preferably an equal amount of each of these layers will be taken from the pile by obtaining a cut of material across the pile face.
  • the reclaimer digs from the base of the pile relying on gravity to supply the particulate material from the upper portions of the pile face to move down to the pile base to the digging means of the reclaimer.
  • the removal of successive cuts across the end face of the pile is an advantage not only in that blending of a portion of each of the multitude of layers placed in the pile by the stacker will be obtained, but also in that a more orderly and effective removal of material and clean-up of the storage area can be carried out by the reclaimer.
  • the characteristics of the material in the storage pile may be such that orderly and free flow of material particles from the upper portions of the pile face under the effect of gravity will not occur.
  • Some materials tend to be stickyv and agglomerate. With high moisture content agglomeration may be more pronounced and, of course, at low temperatures freezing of moist material will prevent free flow down the face of the pile to the digging means of the reclaimer. This problem can result in the reclaimer continuing to remove material from the pile end face at the base of the pile until the reclaimer digging means has substantially undercut the face of the pile.
  • the base of the pile may be on the order of feet across and the distance to the peak of the pile along the sloped end face may be 50 to 60 feet, it will be realized that a rake to cover essentially the entire face is not only unduly expensive but also must add a substantial amount of weight to the reclaiming machine.
  • the rake mounted to travel with the traversing digging means of the reclaimer also has its disadvantages. Since the digging means is to remove material from across the entire width of the pile base, it must follow that a rake traveling with the digging means to the extreme side limits of the pile base is ineifective and useless at the side portions of the pile base. At these side portions the rake will merely extend upwardly in the air with no material to be agitated therebeneath since the triangular shape of the pile face gives the side portions of the pile base only limited height.
  • a rake mounted to move with the digging means of the reclaimer y is necessarily restricted to following the same schedule of movement as the reclaimer digging means.
  • the principal danger area for the occurrence of avalanching of material is the area adjacent the maximum height or peak of the pile end face. This area inherently contains the Igreatest amount of material and presents the greatest danger of a large volume of material cascading down the face of the pile to interfere with or interrupt removal of the material from the base of the pile by the reclaimer digging means. Actually it is only this area adjacent the maximum height or peak of the pile that requires agitation to keep the face trim and avoid the avalanche problem.
  • the rake can make only one pass across the critical avalanche area of the pile face for each pass of the digging means.
  • inadequate agitation of the material adjacent the maximum height or peak of the pile can result and the rake will not effectively perfo-rm its function of avoiding avalanching.
  • a further object of the instant invention is to provide a reclaimer for removing particulate material from a storage pile wherein a traversin-g digging means moves back and forth across substantially the entire width of the base of the pile and a trimmer agitates the face of the pile above the digging means and traverses across only a central portion of the pile face substanitially less than the entire width of the pile base to maintain the face trimmed in a substantially uniformly sloped condition.
  • Another object of the instant invention is to provide a reclaimer for removing particulate ⁇ material from a storage pile wherein a traveling bridge guide to move along rails extending along the opposite longitudinal sides of the pile carries a travering digging means and an independently traversin-g trimmer both operable in traversing back and forth along the bridge and across the pile face such that the digging means and trimmer will not simultaneously be located at the center of said bridge and accordingly the maximum bending stresses to which the bridge is subjected to will be lower than where the rake and digging means simultaneously exist at the mid-point of the bridge.
  • FIGURE 1 is a perspective view illustrating the reclaiming apparatus of this invention associated with a storage pile from which lmaterial is being reclaimed.
  • FIGURE 2 is a cross sectional view through the bridge of t-he reclaiming apparat-us with parts removed to better illustrate the relationship of the independent digging means and trimmer of the apparatus.
  • FIG-URE 3 is a cross sectional view of the wheel and digging buckets thereon as they are associated with the rotary transfer table.
  • FIGURE 4 is a sectional view taken on line 4 4 of FIGURE 3.
  • FIGURE 5 is a diagrammatic view of the mounting relationship for limit switches operable in a control circuit to achieve one ymode of operation for the reclaiming apparatus.
  • FIGURE 1 The overall assembly and relationship of the components of the apparatus may best be seen on FIGURE 1.
  • the reclaiming apparatus is shown on this iigure operatively associated with an elongated storage pile P consisting of particulate material.
  • This pile P is contemplated as having been built up in a multitude of layers by a traveling stacker feeding the material onto the peak of the pile as the stacker moves back and forth along the length of the pile.
  • the particulate m-aterial is being reclaimed from the pile by digging means removing the material from along the base of the triangular end face f of the pile.
  • the pile P has a triangular cross section throughout its length with the slope of the sides of the pile being determined by the characteristics of the particulate material which makes up the pile.
  • the reclaimer apparatus incorporates a bridge 10 which in the embodiment illustrated extends across the width of the end of pile P.
  • this bridge is made up of a main structural steel bridge 1l and an auxiliary cross ⁇ belt conveyor bridge 12.
  • the main bridge and auxiliary bridge are interconnected by means of end frames 13 at the opposite ends of the bridge.
  • Each of the end frames 13 is provided with wheeled trucks 1S. At least one of these trucks 15 on each end frame 13 is driven by suitable propulsion means 16. These wheeled trucks 15 engage with parallel tracks 20.
  • the tracks 20 are supported 0n suitable foundations 21 to extend along the opposite sides of the pile P parallel to each other in the embodiment illustrated on the drawings. It will thus be seen that the propulsion means 16 by driving the wheeled trucks 15 will act to move the bridge toward the face f of the pile and thus bring the digging means and trimmer carried on the bridge into reclaiming relation with the material in the pile for its removal.
  • the main bridge 11 carries two separate carriages which are independently traversible along the length of the bridge. To support these carriages the main bridge 11 is provided with one set of rails 25 and a second set of rails 26.
  • Carriage 30 is suspended beneath the main bridge 11 by hangers 31. These hangers have rollers 32 which engage the set of rails 25.
  • a traversing drive 35 for the carriage 30 is provided associated with the hangers 31, such drive being appropriately coupled to traverse the carriage 30 back and forth along the length of the main bridge 11.
  • This traversing drive may be connected to rotate rollers 32 and thus propel carriage 30 along rails 25, may be connected to draw carriage 30 along a length of chain which has its ends xedly connected to the opposite ends -of the bridge, or may take any other suitable form to traverse carriage 30.
  • a control which will be described hereinafter is provided to appropriately stop and reverse the traversing movement of the carriage as it nears the ends of the bridge.
  • the carriage 30 supports the digging means which 1s operable to remove material from the base of the pile face as well as the components which transfer the material from the digging means to the transport conveyor by means of which the material is transported t-o one end of the bridge.
  • the digging means is in the form of a bucket excavating wheel consisting of a wheel 40 having a plurality of digging buckets 41 mounted around the periphery thereof. If desired other equivalent digging means may be employed instead of a bucket excavating wheel, such as, a bucket elevator digging means.
  • the construction and mounting of the digging wheel may best be seen in FIGURES 3 and 4.
  • the Wheel 40 is generally cup-shaped in design with radial openings 42 lin the cylindrical wall of the wheel inwardly of each of the digging buckets 41.
  • the wheel is rigidly mounted on a shaft 43 and has strengthening plates 44 closing one end of the cylindrical wall of the wheel.
  • Shaft 43 is mounted in bearings 45 bolted to the frame of carriage 30 and which support the wheel to rotate about a horizontal axis.
  • Shaft 43 is provided with a driving sprocket (not shown) connected through a roller chain (not shown) to drive 46 on carriage 30.
  • the wheel 40 is shown in its digging relation to the face j of the pile of material being reclaimed.
  • the Vbuckets 41 pick up material from the pile, carry the material upwardly and discharge it through the openings 42 in the wheel onto the rotary transfer table described hereinafter.
  • An arcuate plate 48 is stationarily mounted on supports 49 within the cylindrical wall portion of wheel 40, such supports being appropriately connected to the frame members of the carriage 30.
  • the arcuate plate 48 serves to block the wheel openings 42 and retain the material in the buckets 41 until the respective openings pass beyond the end of plate 48 near the top of the wheel. At this point, the material is discharged onto a rotary transfer table 50.
  • the rotary transfer table 50 is mounted within the cylindrical wall portion of wheel 40 and includes a rotatable disc 51. This disc is rotated in the direction shown by the arrow in FIGURE 4 by a drive assembly 52 beneath the disc and supported on the frame members of carriage 30.
  • a channel 53 connected to the frame members of the carriage 30 supports a stationary guide fence 54 in a position overlying a portion of the periphery of rotating disc 51.
  • This guide fence connes the material on the disc 51 until it is discharged from the disc of the rotary transfer table onto transfer ybelt conveyor 60.
  • a plow Ib-lade 55 is stationarily mounted above disc 51 to clear the material from the disc as the disc rotates.
  • the disc 51 of the rotary transfer table is inclined at an angle such that the material discharged from the wheel buckets will be urged by gravity to move with the turning disc onto the transfer conveyor 60.
  • the rotary transfer table 50 In some conditions, particularly Where dry, more free flowing particulate materials are to be handled yby the reclaimer, the rotary transfer table 50, its drive and re- Ilated components may be dispensed with.
  • a chute would replace the rotary transfer table the chute being mounted to receive the material from the interior of the wheel and discharge it onto the transfer conveyor 60.
  • the transfer belt conveyor 60 is supported on carriage 30 in a position such -that it receives the material from the rotary transfer table 50 conveying it rearwardly to a point overlying the cross belt -conveyor 70 mounted as described hereinafter.
  • An appropriate drive 61 is provided for the transfer conveyor 60 mounted on the carriage 30.
  • the auxiliary cross belt conveyor bridge 12 supports cross belt conveyor 70 which extends along the length of the bridge.
  • the cross conveyor bridge is also shown as supporting a catwalk 71 by means of which the operator may inspect the functioning of the apparatus during the reclaiming operation.
  • each end of the cross conveyor 70 there is provided a chute 75 pivotally connected to the auxiliary cross belt conveyor bridge. These chutes serve to -conne the material as it is delivered from the end of the cross conveyor and properly distribute it on the reclaim conveyor 80.
  • the chute 75 at the far end of the cross conveyor 70 is shown raised to its inoperative position.
  • the chute 75 at the near end of the apparatus as illustrated in FIGURE 1 is shown lowered in operation since the cross belt conveyor 70 is being driven in a direction to carry the material toward the chute at the near end of the apparatus.
  • a reclaim belt conveyor stationarily supported at a position extending along the side of the pile P.
  • This reclaim conveyor will extend the length of the pile and may appropriately connect with -other conveyors to convey the material to the point of use.
  • Reclaim conveyor 80 is disposed relative to the tracks 20 with the end of cross belt conveyor 70 and chute 75 overlying the belt surface of conveyor 80. Thus the material from cro-ss belt conveyor 70 on the reclaimer bridge will be discharged through chute 7S onto conveyor 80.
  • the sets of rails 26 support this second carriage 85.
  • the carriage is provided with rollers 86 which engage with the rails 26.
  • An appropriate drive 87 is provided on carriage 85 to traverse this carriage back and forth along the length of the bridge.
  • This drive may be directly connected to drive the rollers 86, may be coupled to sprockets to lengths of roller chain 88 which have their opposite ends xedly connected to opposite ends of the bridge to draw the carriage back and forth along the bridge, or may be otherwise adapted to traverse carriage 85 along the bridge.
  • two chain lengths are shown on FIGURE 2, it will be appreciated that a single chain length may be employed if the requisite traversing power can be obtained.
  • Carriage 85 supports a trimmer 90 by the lower end of trimmer 90 being pivotally connected to the lower end of carriage 85.
  • the upper end of the trimmer is connected to the carriage 85 by cable 92 leading to a hoist 93 mounted on carriage 85.
  • hoist 93 By means of hoist 93 the angle of inclination of trimmer 90 may be varied to adapt the apparatus to the normal angle of repose for the particular characteristics of the material making up the pile that is being reclaimed.
  • the trimmer 90 consists of an elongated frame supporting a plurality of spaced spikes 95.
  • spikes extend outwardly from the trimmer frame toward the face of the pile and in operation of the apparatus are adapted to agitate the face f of the pile so that the material in the upper portions of the pile face will be loosened and readily flow downwardly by gravity to be picked up by the digging means working at the base of the pile face.
  • the independent carriages 30 and S5 are so supported and constructed in relation to each other that they can pass each other in the separate traversing paths which preferably are employed in the reclaiming operation.
  • the main bridge 11 can be readily constructed to have ample load carrying ability even with bridges of 100 feet or more in length.
  • This main bridge with the carriage 30 and digging means supported beneath it is completely clear of the operations of the digging means.
  • the independent carriage 30 with the digging bucket wheel and material transferring components on this carriage can readily be serviced as need may arise and the wheel, buckets and material transferring components can be replaced with ease in repairing the equipment.
  • the operational functions of the reclaiming apparatus should be apparent'from the description of the various components given hereinabove.
  • the apparatus applied to reclaiming material from an enlongated storage pile, will be moved toward the pile end face f by drive means 16 propelling the wheeled trucks 15 along tracks 20.
  • drive means 16 propelling the wheeled trucks 15 along tracks 20.
  • the bridge movement carries the digging wheel into digging engagement with the base of the pile.
  • Drive 35 is energized to traverse carriage 36 along the length of the main bridge 11 and the digging wheel picks up the material as it passes across the width of the pile base. This material moves from the digging buckets onto the transfer table, thence to the transfer belt conveyor, thereafter onto the cross belt conveyor and nally is discharged onto the reclaim conveyor where it may be delivered to the intended destination.
  • the independent trimmer carrying carriage 85 is moved by drive 87 to traverse the trimmer back and forth across a central portion of the pile face.
  • the traverse of the trimmer is preferably restricted to a limited length of the main bridge 11 since it is desired to agitate principally the material in the pile adjacent the peak of the pile where the greater volume of material exists and consequently greater danger of avalanching of the material over the bucketwheel.
  • the traverse distance for the trimmer 90 will advantageously be restricted to agitate the central portion of the pile face adjacent the peak of the pile.
  • the trimmer traverse may occur at a faster speed than the digging means traverse such that the trimmer traverses its restricted distance more than one time for each trip of the digging means.
  • Appropriate controls to determine the traversing distance of the carriage 30 and the shorter traverse distance of the carriage 85 may be provided by limit switches 100 and trips 161 therefor.
  • the switch may be mounted on the carriage being controlled and the trip appropriately positioned on the main bridge 11.
  • the same control action can be achieved by reversing the locations of the switch and trip, namely, by mounting the switches stationarily on the bridge and placing the trips on the carriages positioned to actuate the respective switches as the -carriages traverse back and forth on the bridge.
  • the reversing controls i.e., either the trips or switches depending on which is to be stationarily mounted on the bridge, will be mounted adjacent the ends of the bridge 11 for the digging means carriage and mounted inwardly from the bridge ends for the trimmer carri-age.
  • This relationship of the reversing controls is illustrated in FIGURE 1.
  • the tripping of the switch 100 for the digging means carriage 3() will act to reverse the direction of carriage traverse by reversing the driving direction of carriage drive 35.
  • the tripping of the switch 100 ⁇ for the trimmer carriage will stop the drive S7 short of the end of the bridge and set it to drive carriage 8S in the reverse direction.
  • the traverse speed of either or both of the digging means and trimmer may be varied in their paths of -movement along the bridge.
  • the digging means a higher speed adjacent the ends of the bridge where less material exists in the portions of the pile to be reclaimed may be used.
  • the trimmer a traversing speed that changes dependent on the amount of material to be agitated may be desired. In either case, the speed changes can simply and effectively be obtained by providing speed change switches and trips therefor respectively mounted on the rbridge and carriage to be controlled so that a speed change switch will be tripped as such carriage traverses and this tripping will alter the traversing speed.
  • trimmer carriage traverse in advance 0f the traversing movement of carriage 30.
  • the action of the trimmer in agitating the material will lfree it .so that it ows, downwardly by gravity to be picked up by the digging means Awhich is following the trimmer in its traversing path.
  • the trimmer traverse will be appropriatelystopped at the end of its shorter traversing path while the digging means continues its traverse to nearly the end. of the bridge, terminating and reversing near the lateral edge of the base of the pile. With the trimmer remaining in this stopped position, the digging means will complete its traverse and reverse its direction for the return traverse.
  • the trimmer will then be restarted in the reverse traverse direction to again lead the digging means in traverse across the face of the pile. This operating relationship will be repeated at both lateral edges of the base of the pile with the trimmer doing its most effective work in having to agitate only the major central portion or peak portions of the pile face.
  • This preferred traversing relationship between the digging means and trimmer traversing paths may also be simply achieved by switches Iand trips on the carriages and bridge respectively.
  • the tripping of the switch that effects reversal of the direction of movement of the digging means carriage can also be used as a control signal to restart the trimmer carriage whereupon the trimmer carriage will lead or move in advance of the digging means carriage.
  • a separate switch and trip can be provided to be actuated by movement of the digging means carriage from its traverse reverse point back toward the stopped trimmer carriage and this actuation used in the control circuit to restart the trimmer carri-age in a direction to lead the digging means carriage across the pile face.
  • the independent traversal of 4the trimmer with respect to the digging means may be used to advantage in the traversing relationship producible by limit switch relationship diagrammatically illustrated on FIGURE 5.
  • limit switch relationship diagrammatically illustrated on FIGURE 5 Before undertaking description of the functioning of the various limit switches positioned in the spacial relation as shown on FIGURE 5, brief mention may be made of the objective of the traversing schedule to be obtained by the FIGURE 5 relation of limit switches.
  • the separate traversing capabilities of the trimmer carriage may advantageously be used to provid-e extra agitation of pile face adjacent the side limits Iof the pile base to encourage material in these areas to move outwardly toward the side limits of the pile. This extra agitation and consequent lateral ow of the material from the pile peak toward lthe side limits of the pile can offer a more uniform supply of material at these side limits for the digging means to pick up.
  • the trimmer carriage movement may be carried out to .make a full pass -across the end face of the pile and at each end of such pass the trimmer carriage will be caused to move back and forth over only a restricted portion adjacent the side limit of the pile base.
  • limit switch 110L and 110R The end limits for the trimmer traverse are determined by the location of limit switch 110L and 110R. These switches are appropriately mounted lon the reclaimer bridge to be actuated by a trip on the trimmer carriage. Inwardly of the limit switches 1101. and 110R and. also appropriately mounted on the bridge are limit switches 115L and 115R. These latter two switches are of a construction to be actuatable only when engaged by the trimmer carriage trip when the carriage is moving in a particular direction. The direction in which each of the limit switches 115L and 115R is actuatable is indicated on FIGURE 5 by the arrows 116 and 117, respectively.
  • limit switches 1201. Iand 120R appropriately mounted on the reclaimer bridge to be engaged a-nd actuated by a trip on the digging means carriage. Spaced inwardly on the lbridge relative to the limit switches 120L and 120R are mounted limit switches 125L and 125R, these two switches being of a construction to be operable only when the digging mea-ns carriage is moving in a particular direction past the respective limit switch.
  • the direction in which each limit switch 120L and 120R is lactuatable is shown on FIGURE 5 fby arrows 126 and 127 respectively.
  • Actuation of limit switch 110R will effect the control circuit for the trimmer traversing motor to reverse the direction of traverse of the trimmer.
  • the trimmer thereupon moves back toward the left o-n FIGURE 5 toward limit switch 115R whereupon the trimmer carriage trip will actuate limit switch 115R since the trimmer carriage is now moving in the direction of arrow 117.
  • Operation of limit switch 115R will act on the trimmer traversing motor through the control circuit to again reverse the direction of the trim-mer carriage whereupon it will move back to the right on FIGURE 5 and upon the seco-nd actuation of limit switch 110R further movement of the trimmer carriage is stopped.
  • the first actuation of the one-way-operab-le limit switch 115R will set the control circuit so that the subsequent and second actuation of limit switch -110R will bring the carriage to a stop.
  • the digging means will not yet have reachedl the bridge location of limit switch 110R. Since the digging means carriage is movi-ng to the right as shown on FIG- URE 5, and thereby moving in the direction of arrow 127 the one-way-actuable limit switch 125R will be operated when the digging means carriage trip passes. The trimmer will remain stationary until the digging means has passed the trimmer and the trip on the digging means carriage engages and actuates .limit switch R. Operation of switch 12SR will function through the control circuit to restart the trimmer carriage, starti-ng the trimmer to move to the left.
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having digging means mounted thereon to be movable along said bridge and traverse the face of the pile, ⁇ said bridge being mounted to move said digging means toward the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging -means and agitate the pile face to maintain the face trimmed in a substantially uniformly sloped condition as material is removed therefrom by said digging means
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having digging means mounted thereon to be movable along said bridge and remove material from the base of the pile face as the digging means traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging means and agitate the pile face as it traverses the face of the pile to maintain the face trimmed in a substantially uniformly sloped condition as material is removed from the base of the pile face by said digging means,
  • said digging means comprises a rotatably supported wheel having digging buckets around the periphery thereof
  • said conveying means includes a cross conveyor extending along said bridge, and a rotary transfer table mounted to receive material from the wheel buckets and discharge such material onto a transfer conveyor which carries the material to said cross conveyor.
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having digging means mounted thereon to be movable along said bridge and remove material from the base of the pile face as the digging means traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging means and agitate the pile face as it traverses the face of the pile to maintain the face trimmed in a substantially uniformly sloped condition as material is removed from the base of the pile face by said digging means,
  • a cross conveyor extending along said bridge to transport material removed from the pile by said digging means to one end of said bridge
  • Apparatus -for reclaiming particulate material from a storage pile comprising a bridge having a first carriage mounting digging means thereon to be movable along said bridge and remove material from the base of the pile face as said first carriage traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • a second carriage mounted on said bridge for movement therealong, said second carriage supporting a pile trimmer to agitate the face of the pile as said second carriage traverses the pile face and maintain such face trimmed in a substantially uniformly sloped condition
  • Apparatus for reclaiming particulate material from a storage pile as recited in claim 5 wherein said digging means comprises a rotatably supported wheel having digging buckets around the periphery thereof, a rotary transfer table is mounted to receive material from the wheel buckets, and a transfer conveyor is supported on said first carriage extending from the discharge from said rotary transfer table to a point overlying said cross conveyor.
  • Apparatus for reclaiming particulate material from an elongated storage pile comprising a bridge having wheel means at its opposite ends,
  • digging means mounted on said bridge to be movable therealong and remove material from the base of the pile end face as the digging means traverses the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging means and agitate the pile end face as it traverses the face of the pile to maintain the face trimmed in a 'substantially uniformly sloped condition as material is removed from the base of the pile face by said digging means,
  • Apparatus for reclaiming particulate material from an elongated storage pile comprising parallel tracks extending along the opposite sides of the pile to be reclaimed with said wheel means engaging said tracks to support said bridge for movement toward the end face of the pile,
  • a first carriage mounted on said bridge for movement therealong and traverse across the end face of the pile, said rst carriage having digging means thereon for removing material from the pile end face as ⁇ the carriage traverses the pile end face,
  • a second carriage mounted on said bridge for movement therealong, said second carriage supporting a pile trimmer to agitate the end face of the pile as said second carriage traverses the pile end face and maintain the face trimmed in a substantially uniformly sloped condition
  • Apparatus for reclaiming particulate material from an elongated storage pile as recited in claim 8 wherein said digging means comprises a rotatably supported wheel having digging buckets around the periphery thereof, a rotary transfer table is mounted to receive material from the wheel buckets, and a transfer conveyor support on said rst carriage extending from the discharge from said rotary transfer table to a point overlying said cross conveyor.
  • Apparatus for reclaiming particulate material from a storage pile comprising a main structural steel bridge and an auxiliary cross conveyor bridge parallel to said main bridge, said main bridge having two sets of rails extending therealong to movably support separate carriages, said auxiliary bridge having a cross conveyor extending therealong,
  • a rst carriage suspended from said main bridge on one of said sets of rails to be movable along said main bridge, said iirst carriage having digging means thereon for removing material from the pile face a-s the carriage traverses the pile face,
  • a second carriage supported on the other of said sets of rails on said main bridge to be movable along said main bridge and past said first carriage, said second carriage carrying a pile trimmer to agitate the face of the pile as said second carriage traverses the pile face and maintain such face trimmed in a substantially uniformly sloped condition
  • Apparatus for reclaiming particulate material from a storage pile as recited in claim wherein said trimmer is pivotally connected at its lower end to said second carriage, and means are provided on said second carriage connected to said trimmer to change the angle of inclination of said trimmer so that the desired slope of the pile face can be maintained for the specific characteristics of the particulate material being reclaimed.
  • Apparatus for reclaiming particulate material from a storage pile comprising a main structural steel bridge and an auxiliary cross conveyor bridge parallel to said main bridge, said main bridge having two sets of rails extending therealong to movably support separate carriages, said auxiliary bridge having a cross belt conveyor extending therealong,
  • a rst carriage suspended beneath said main bridge on one of said sets of rails to be movable along said main bridge, said first carriage having a rotatably supported wheel with digging buckets around the periphery of said wheel, a rotary transfer table mounted to receive material from the wheel buckets and a transfer conveyor which carries the material from said transfer table to said lcross belt conveyor,
  • a second carriage supported on the other of said sets of rails on said main bridge to be movable along said main bridge and past said rst carriage, said second carriage carrying a pile trimmervto agitate the face of the pile as said second carriage traverses the pile face and maintain such face trimmed in a substantially uniformly sloped condition
  • Apparatus for reclaiming particulate material from an elongated storage pile comprising a main bridge and an auxiliary cross conveyor bridge parallel to said main bridge, -said main bridge having two sets of rails extending therealong to movably support separate carriages thereon, said auxiliary bridge having a cross conveyor extending therealong,
  • a rst carriage suspended from said main bridge on one of said sets of rails to be movable along said main bridge, said first carriage having digging means thereon for removing material from the pile end face as the carriage traverses the pile face,
  • a second carriage supported on the other of said sets of rails on said main bridge to be movable along said main bridge and past said rst carriage, said second carriage carrying a pile trimmer to agitate the face of the pile as said second carriage traverses the pile face and maintain such face trimmed in a substantially uniformly sloped condition
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having digging means mounted thereon to be movable along said bridge and remove material from the base of the pile face as the digging means traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging means and agitate the pile face as it traverses the face of the pile to maintain the face trimmed in a substantially uniform sloped condition as material is removed from the base of the pile face by said digging means,
  • control means connected to control said drive means to reverse movement of said digging means at each end of Said bridge so that said digging means traverses substantially the entire length of said bridge and to reverse movement of said trimmer before it reaches each end of said bridge so that said trimmer traverses a central portion of the length of said bridge substantially less than the entire length of said bridge,
  • Apparatus for reclaiming particulate material from a storage pile as recited in claim 15 wherein said control means controls traverse of said trimmer at each end of said central portion to move back and forth through a restricted portion adjacent each side limit of the pile base.
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having digging means mounted thereon to be movable along said bridge and remove material from the base of the pile face as the digging means traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • a trimmer mounted to be movable along said bridge independently of said digging means and agitate the pile face as it traverses the face of the pile to maintain the face trimmed in a substantially uniformly sloped condition as material is removed from the base lof the pile face by said digging means,
  • control means for said drive means to control the traversing operation of said digging means and said trimmer, said control means operating said drive means to traverse said digging means through substantially the entire length of said bridge, said control means further effecting operation of said drive means to traverse said trimmer through a central portion of the length 0f said bridge in a path substantially less than the entire length of said bridge with the traversing movement of said digging means, said control means stopping said trimmer at the end of each traverse and restarting the trimmer traverse to lead the return traverse of said digging means,
  • Apparatus for reclaiming particulate material from a storage pile comprising a bridge having a first carriage mounting digging means thereon to be movable yalong said bridge and remove material from the base of the Vpile face as said rst carriage traverses the face of the pile, said bridge being mounted to move said digging means toward the face of the pile,
  • rst drive means for said irst carriage connected to traverse said first carriage back and forth along said bridge
  • rst control means connected to control said rst drive means to reverse movement of said first carriage at each end of said bridge so that said rst carriage traverses substantially the entire length of said bridge
  • a second carriage mounted on said bridge for movement therealong and past said rst carriage, said second carriage supporting a pile trimmer to agitate the face of the pile as said second carriage traverses the pile face and maintain such face trimmed in a substantially uniformly sloped condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US476887A 1965-08-03 1965-08-03 Apparatus for reclaiming particulate material Expired - Lifetime US3306476A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US476887A US3306476A (en) 1965-08-03 1965-08-03 Apparatus for reclaiming particulate material
GB33836/66A GB1102856A (en) 1965-08-03 1966-07-27 Improvements in or relating to apparatus for reclaiming particulate material
BE685052D BE685052A (enrdf_load_stackoverflow) 1965-08-03 1966-08-03
DE1966L0054236 DE1456657B1 (de) 1965-08-03 1966-08-03 Einrichtung zum Abtragen von Halden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US476887A US3306476A (en) 1965-08-03 1965-08-03 Apparatus for reclaiming particulate material

Publications (1)

Publication Number Publication Date
US3306476A true US3306476A (en) 1967-02-28

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ID=23893656

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US476887A Expired - Lifetime US3306476A (en) 1965-08-03 1965-08-03 Apparatus for reclaiming particulate material

Country Status (4)

Country Link
US (1) US3306476A (enrdf_load_stackoverflow)
BE (1) BE685052A (enrdf_load_stackoverflow)
DE (1) DE1456657B1 (enrdf_load_stackoverflow)
GB (1) GB1102856A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444984A (en) * 1966-07-01 1969-05-20 Maschf Augsburg Nuernberg Ag Apparatus for removing bulk material from a stockpile
US3628264A (en) * 1969-10-13 1971-12-21 K & R Ind Inc Earth-moving machines for subgrading highways
US3656641A (en) * 1969-10-28 1972-04-18 Westfalia Dinnendahl Method for uniformly distributing bulk material taken from a stockpile
US3788446A (en) * 1971-05-04 1974-01-29 Fives Lille Cail Apparatus for recovering bulk material from a pile
US3915286A (en) * 1973-04-16 1975-10-28 Barre Marcel Jean C Apparatus for serving a heaped stock of product
US4038764A (en) * 1976-04-20 1977-08-02 Hanson Raymond A Shearing excavator
US4265036A (en) * 1979-03-23 1981-05-05 Staats William J Bucket dredging and conveying system
US4318466A (en) * 1980-02-28 1982-03-09 Beloit Corporation Raker apparatus
US4549648A (en) * 1982-03-04 1985-10-29 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Bucket-wheel loader for bulk material piles
CN110745573A (zh) * 2019-10-31 2020-02-04 万宝矿产有限公司 一种转载运输机搭接自移式布料方法
CN114212477A (zh) * 2021-12-14 2022-03-22 汨罗市鑫祥碳素制品有限公司 一种物料分类收集装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219185C2 (de) * 1982-05-21 1986-05-07 Gustav Schade Maschinenfabrik Gmbh & Co, 4600 Dortmund Brückengerät zum Abräumen von Schüttguthalden
EP0190038B1 (en) * 1985-01-29 1990-08-22 THE CSL Group Inc. Apparatus for reclaiming bulk solid material from a container

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3069027A (en) * 1958-05-01 1962-12-18 Hewitt Robbins Inc Reclaiming method and apparatus
US3225943A (en) * 1962-05-29 1965-12-28 Hewitt Robins Cantilever rotary reclaimer

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Publication number Priority date Publication date Assignee Title
DE806253C (de) * 1949-12-24 1951-08-20 Moenninghoff Maschf Fahrbare Lade- und Bohrvorrichtung
DE1163242B (de) * 1955-08-24 1964-02-13 Orenstein & Koppel Ag Schaufelrad fuer ein Foerdergeraet
DE1135834B (de) * 1958-05-24 1962-08-30 Lauchhammer Maschb Zellenloses Schaufelrad fuer Bagger, Absetzer od. dgl.
FR1325851A (fr) * 1962-03-23 1963-05-03 Applevage Perfectionnement à la commande des organes de ratissage des appareils de reprise de matières en tas
FR1358767A (fr) * 1963-05-27 1964-04-17 Hewitt Robins Internat S A Récupérateur rotatif en porte-à-faux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069027A (en) * 1958-05-01 1962-12-18 Hewitt Robbins Inc Reclaiming method and apparatus
US3225943A (en) * 1962-05-29 1965-12-28 Hewitt Robins Cantilever rotary reclaimer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444984A (en) * 1966-07-01 1969-05-20 Maschf Augsburg Nuernberg Ag Apparatus for removing bulk material from a stockpile
US3628264A (en) * 1969-10-13 1971-12-21 K & R Ind Inc Earth-moving machines for subgrading highways
US3656641A (en) * 1969-10-28 1972-04-18 Westfalia Dinnendahl Method for uniformly distributing bulk material taken from a stockpile
US3788446A (en) * 1971-05-04 1974-01-29 Fives Lille Cail Apparatus for recovering bulk material from a pile
US3915286A (en) * 1973-04-16 1975-10-28 Barre Marcel Jean C Apparatus for serving a heaped stock of product
US4038764A (en) * 1976-04-20 1977-08-02 Hanson Raymond A Shearing excavator
US4265036A (en) * 1979-03-23 1981-05-05 Staats William J Bucket dredging and conveying system
US4318466A (en) * 1980-02-28 1982-03-09 Beloit Corporation Raker apparatus
US4549648A (en) * 1982-03-04 1985-10-29 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Bucket-wheel loader for bulk material piles
CN110745573A (zh) * 2019-10-31 2020-02-04 万宝矿产有限公司 一种转载运输机搭接自移式布料方法
CN114212477A (zh) * 2021-12-14 2022-03-22 汨罗市鑫祥碳素制品有限公司 一种物料分类收集装置

Also Published As

Publication number Publication date
GB1102856A (en) 1968-02-14
BE685052A (enrdf_load_stackoverflow) 1967-01-16
DE1456657B1 (de) 1971-12-02

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