EP4124387A1 - Aufbereitungsanlage - Google Patents

Aufbereitungsanlage Download PDF

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Publication number
EP4124387A1
EP4124387A1 EP22180347.1A EP22180347A EP4124387A1 EP 4124387 A1 EP4124387 A1 EP 4124387A1 EP 22180347 A EP22180347 A EP 22180347A EP 4124387 A1 EP4124387 A1 EP 4124387A1
Authority
EP
European Patent Office
Prior art keywords
area
feed
processing plant
oversize
plant according
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.)
Pending
Application number
EP22180347.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Florian Nägele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kleemann GmbH
Original Assignee
Kleemann GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kleemann GmbH filed Critical Kleemann GmbH
Publication of EP4124387A1 publication Critical patent/EP4124387A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/02—Transportable disintegrating plant
    • 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
    • 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone

Definitions

  • the invention relates to a processing plant, in particular a crushing plant with a crushing unit, for crushing material, in particular mineral material, with a material feed area having a material feed device and a feed hopper, being provided, with the feed hopper being designed and arranged to feed the material feed device material to be crushed, and the material feed device is designed and arranged to feed the material to be crushed to the crushing unit, the feed hopper having at least one hopper wall, a return conveyor being provided which is designed and arranged to convey oversize material coming from the crushing unit by means of a To feed the oversize chute to the material feed area, and wherein the oversize chute has a material management area over which the oversize material is passed.
  • a crushing unit can be a jaw crusher unit which has two crushing jaws, one of the crushing jaws preferably being fixed and the other being movable.
  • the crushing chamber is formed at least in regions between the two crushing jaws. It is preferably the case that the crushing jaws are assigned to one another in such a way that a tapering crushing chamber results.
  • the two crushing jaws face each other in the area of a crusher outlet, it being possible for the crusher outlet to be formed by a crushing gap.
  • a crushing unit can also be a rotary impact crusher unit.
  • This has a crushing rotor which accelerates the material to be crushed and throws it against at least one wall element.
  • Such rotary impact crusher aggregates can have impact rockers or the like as wall elements.
  • the crushing rotor can be formed by a crushing cone or a crushing roller.
  • a crushing unit can also be a cone crusher, a gyratory crusher or a roller crusher or a similar crushing unit.
  • the processing plant can be filled with the mineral material to be crushed, for example with a wheel loader.
  • the material to be shredded is fed into the processing plant via the feed hopper.
  • a material feed device can be arranged at least in sections in the area of the feed hopper.
  • the material feed device can be, for example, a feed chute that is driven by a vibrating conveyor. It is also conceivable that the material feed device is formed by an endlessly circulating belt.
  • the material to be crushed is fed to a crushing unit via the material feed device.
  • a screen unit can be arranged in the area of the material feed device, which is arranged in front of the crushing unit in the direction of material flow.
  • the screen unit has at least one screen deck.
  • the material to be crushed can be classified on the screen deck.
  • Coarse material that is not screened is fed directly to the crushing unit.
  • a screened fraction can be routed past the crushing unit in the bypass. This screened fraction already has a sufficient particle size and does not have to be further crushed. It can therefore be routed past the crushing unit so as not to burden it unnecessarily.
  • the material guided past the crushing unit in the bypass can be routed onto a crusher discharge belt, for example.
  • a post-screening device can be arranged behind the crushing unit in the direction of material flow.
  • the material discharged from the crusher discharge belt can be fed to this post-screening device.
  • Coarse material which has a grain size that is too large, is not screened out in the secondary screening device as oversize. This oversized grain is then placed on a return conveyor and fed back into the material flow upstream of the crushing unit in the conveying direction.
  • At least one adjustable material guiding element is assigned to the oversize grain chute.
  • the machine operator can decide how he wants to design the material guide area of the oversize grain chute, depending on his machine configuration.
  • an adjusting element is used as the material guiding element, which can be adjusted between at least a first adjusted and a second deployed operating position in order to change the material guiding area.
  • the material guidance area can be expanded or changed with the actuating element in such a way that the Oversize is fed to the crushing unit with complete or partial bypass of the screen unit. This puts less or no more stress on the screen unit, which leads to optimized machine operation.
  • the oversize grain chute is designed in such a way that the problem described above, in which oversize grain is transported in an endless loop, is prevented or at least partially reduced. It is particularly conceivable that the discharge area of the oversize chute is extended and/or adjusted in the direction of the crushing unit, in which case the oversize can then be guided in such a way that it is no longer or only partially screened out on the screen unit, in particular completely or partially on the screen unit passed, will.
  • the adjusting element can be adjusted between the two operating positions in order to change the size and/or position of the discharge area of the material guide area at least in certain areas.
  • a preferred embodiment of the invention is such that the hopper wall of the feed hopper can be pivoted about a pivot axis between a folded transport position and an opened operating position, and that the oversize grain chute and the actuating element are attached to the hopper wall and can be pivoted with it.
  • the hopper wall can be brought from its erected operating position into the folded-down transport position in order to be able to transport the machine in a space-saving manner.
  • the control element can be adjusted to its set operating position.
  • a compact design for the oversize grain chute can be realized, for example, in that the actuating element has a material guide area that widens a material guide floor of the oversize grain chute in its second deployed operating position compared to the first set operating position.
  • the discharge area of the oversize grain chute in the raised operating position is formed at least in some areas by the material guide area, preferably by a raised part of the material guide area.
  • the adjusting element can be adjusted from the first set operating position to the second opened operating position in such a way that the discharge area of the oversize chute in Material conveying direction of the material feed device is adjusted and / or expanded.
  • the actuating element has a side wall that laterally delimits the material guidance area. If it is additionally provided that the side wall limits the actuating movement of the actuating element in the set operating position as a stop, then the side wall is advantageously assigned an additional function.
  • a reliable adjustment of the actuating element can be structurally simple if it is provided that the actuating element can be pivoted by means of a bearing about a pivot axis between the set and the deployed operating position, the pivot axis preferably running perpendicular to the material guide base.
  • the actuating element is covered with one or more wear protection elements, and that the wear protection elements form the material guiding area at least in certain areas. Provision can particularly preferably be made for the material guide areas of the hopper walls to be formed, at least in some areas, from the same material as the material guide area of the oversize grain chute. As a result, the parts and handling effort can be optimized.
  • the adjusting element has a carrier which, in the adjusted position of the adjusting element, is adjusted behind the back of a base part of the oversize grain chute, the carrier is guided adjustably by means of guide elements in the area of the rear on the base part.
  • a conceivable variant of the invention is such that a screen unit is arranged in front of the crushing unit in the direction of material flow, which screen unit has at least one screen deck, and that the screen unit is followed by a bypass channel, via which a fraction screened out by the screen unit is routed past the crushing unit.
  • a processing plant according to the invention can also be such that a post-screening device is arranged downstream of the crushing unit in the direction of material flow, which has at least one screen deck, with the oversize being separated off on the screen deck and this directly or indirectly, preferably via a branch conveyor, is fed onto the feed area of the return conveyor.
  • the adjustable material guiding element is a guiding element in order to direct the material flow according to the wishes of the operator in the area of the oversize grain chute.
  • the adjustable guide element is arranged in such a way that the material flow in the material guide area can be changed in the various adjustment positions of the guide element.
  • the machine operator can decide, depending on his machine configuration, how he wants to design the material guide area of the oversize grain chute. For example, it is conceivable that the guide element of the material management area is changed in such a way that the oversize is fed to the crushing unit with complete or partial bypass of the screening unit. This puts less or no more stress on the screen unit, which leads to optimized machine operation.
  • the guide element is set in such a way that the problem described above, in which oversized grain is transported in an endless loop, is prevented or at least partially reduced. It is particularly conceivable that the discharge area of the oversize chute is extended and/or adjusted in the direction of the crushing unit, in which case the oversize can then be guided in such a way that it is no longer or only partially screened out on the screen unit, in particular completely or partially on the screen unit passed, will.
  • a simple design can be realized if it is provided that the guide element is pivotally coupled to the oversize grain chute by means of a pivot bearing.
  • the guide element can also be adjusted quickly, reliably and easily by means of the swivel bearing.
  • the guide element has a guide device to which at least one wear protection element is attached in the material guide area.
  • the same material can be used for the anti-wear element that is used for lining the crusher walls.
  • the guide element has a support section that is supported on the material guide base, that the support section has an adjusting section that is provided at least in some areas with a slot running in the direction of adjustment of the guide element, and that a clamping element is guided in the slot.
  • the guide element can be stably supported on the material guide base with the support section, so that a reliable positioning of the guide element is maintained even under heavy loads.
  • the clamping element can be released and then the guide element can be adjusted. It can be the case, for example, that the support section as a sliding guide for the Adjustment movement is used on the material guide floor. As soon as the set position is reached, the guide element can be fixed again with the clamping element.
  • FIG 1 shows a processing plant in the form of a crushing plant 10.
  • the crushing plant 10 is designed as a mobile crushing plant and therefore has chassis 15. However, it is also conceivable that the crushing plant 10 is a stationary crushing plant.
  • the crushing plant 10 has a chassis 11 which carries the machine components or at least some of the machine components. At its rear end, the chassis 11 has a boom 12. In the area of the boom 12, a material feed area is formed.
  • the material feed area comprises a feed hopper 20 and a material feed device 16.
  • the feed hopper 20 can be formed at least partially by hopper walls 21 that run in the direction of the longitudinal extent of the crushing plant 10 and a rear wall 22 that runs transversely to the longitudinal extent.
  • the feed hopper 20 leads to the material feed device 16.
  • the material feed device 16 can have a conveying trough which can be driven by means of a vibration drive. Material to be crushed can be filled into the crushing plant 10 via the feed hopper 20, for example by means of a wheel loader, and placed on the conveyor chute.
  • a sieve unit 30 From the conveyor chute, the material to be comminuted arrives in the area of a sieve unit 30.
  • This sieve unit 30 can also be referred to as a pre-sieve arrangement.
  • At least one screen deck 30.1, 30.2 is arranged in the area of the screen unit 30. In the present embodiment, two screen decks 30.1, 30.2 are used.
  • a partial fraction of the material to be comminuted is screened out on the upper screen deck 30.1.
  • This partial fraction already has a sufficient grain size that no longer needs to be crushed in the crushing plant 10 .
  • this sub-fraction screened out can be routed in a bypass channel 31 past a crushing unit 40 .
  • a further fine particle fraction can be screened out from the partial fraction that occurs below the screen deck 30.1.
  • This fine particle fraction is guided to a side discharge belt 32 below the screen deck 30.2.
  • the fine particle fraction is discharged from the side discharge belt 32 and conveyed to a stockpile 70.2 arranged at the side of the machine.
  • the screen unit 30 can be a vibrating screen with a screen drive 33 .
  • the sieve drive 33 offsets this Screen deck 30.1 and/or that screen deck 30.2 in vibrating movements. Due to the inclined arrangement of the screen decks 30.1, 30.2 and in connection with the vibration movements, material is transported on the screen decks 30.1, 30.2 in the direction of the crushing unit 40 or the bypass channel 31.
  • the material to be crushed coming from the screen deck 30.1 is fed to the crushing aggregate 40, like this figure 1 reveals.
  • the crushing unit 40 can be designed, for example, in the form of a rotational impact crushing unit.
  • the crushing unit 40 then has a crushing rotor 42 which is driven by a motor 41 .
  • the axis of rotation of the crushing rotor 42 runs horizontally in the direction of the image depth.
  • the crushing rotor 42 can, for example, be equipped with blow bars 43 on its outer circumference. Opposite the crushing rotor 42, for example, wall elements can be arranged, preferably in the form of impact rockers 44. When the crushing rotor 42 is rotating, the material to be crushed is thrown outwards by means of the impact bars 43 . This material hits the impact rockers 44 and is crushed due to the high kinetic energy. If the material to be crushed has a sufficient grain size that allows the material particles to be guided through the gap between the impact rockers 44 and the radially outer ends of the impact bars 43, the crushed material leaves the crushing unit 40 via the crusher outlet 45.
  • the belt conveyor 30 can have an endlessly circulating conveyor belt which has a tight strand 13.3 and a slack strand 13.4.
  • the load strand 13.3 serves to catch and transport away the broken material that falls out of the crusher outlet 45 of the crushing unit 40 .
  • the conveyor belt can be deflected between the tight strand 13.3 and the slack strand 13.4 by means of deflection rollers 13.1, 13.2.
  • Guides, in particular support rollers, can be provided in the area between the deflection rollers 13.1, 13.2 in order to change the conveying direction of the conveyor belt, to give the conveyor belt a specific shape and/or to support the conveyor belt.
  • the belt conveyor 13 has a belt drive, by means of which the belt conveyor 13 can be driven.
  • the belt drive can preferably be arranged at the discharge end 13.5 or in the area of the discharge end 13.5 of the belt conveyor 13.
  • the belt conveyor 13 can be connected to a control device by means of a control line, for example by means of the belt drive.
  • one or more further belt conveyors 60 and/or a return conveyor 80 can be used, which in principle have the same design as the belt conveyor 13. In this respect, reference can be made to the above statements.
  • a magnet 14 can be arranged above the load strand 13.3. Iron parts can be lifted out of the broken material with the magnet 14 and moved out of the conveying area of the belt conveyor 13 .
  • a post-screening device 50 can be arranged after the belt conveyor 13 in the transport direction.
  • the post-screening device 50 has a screen housing 51 in which at least one screen deck 52 is accommodated.
  • a lower housing part 53 is formed below the screen deck 52 and serves as a collection space for the material screened out on the screen deck 52 .
  • the lower housing part creates a spatial connection to a further belt conveyor 60 via an opening.
  • the further belt conveyor 60 forms its Task area 61, the screened-out material in the task area 61 being passed onto the load run of the further belt conveyor 60.
  • the further belt conveyor 60 conveys the screened material to its discharge end 62. From there the screened material reaches a stockpile 70.2.
  • the material not screened out on the screen deck 52 of the post-screening device 50 is conveyed from the screen deck 52 onto a branch belt 54 .
  • the branch belt 54 can also be designed as a belt conveyor, so that reference can be made to the statements made above in relation to the belt conveyor 13 .
  • the transport direction of the stitch band 54 runs in figure 1 in the direction of the image depth.
  • the branch belt 54 transfers the material that has not been screened out, which is also referred to as oversize, to the feed area 81 of the return conveyor 80.
  • the return conveyor 80 which can be designed as a belt conveyor, conveys the oversize in the direction of the feed hopper 20.
  • the return conveyor 80 transfers the oversized grain into the material flow, specifically into the material feed area. The oversize can therefore be fed back to the crushing unit 40 and broken down to the desired particle size.
  • the return conveyor 80 transfers the oversize in the area of its discharge end 82 to the material feed area by means of an oversize chute 27, which is figure 2 is shown.
  • FIG 2 illustrates that the funnel walls 21 can each be coupled directly or indirectly to the chassis 11 by means of an actuating unit 23 .
  • the funnel walls 21 of the figure 2 shown installed operating position in an in figure 4 folded transport position shown.
  • figure 2 illustrates that the rear wall 22 can be directly or indirectly pivotably coupled to the chassis 11 by means of an actuating unit 25 .
  • the actuating unit 25 By means of the actuating unit 25, the rear wall 22 of the in which figure 2 represented, installed operating position to an in figure 4 folded transport position shown.
  • the funnel walls 21 are coupled to the rear wall 22 at connection areas 24, so that a funnel contour is formed here.
  • the hopper wall 21 has a coupling area 26 to which the oversize grain chute 27 is connected or attached.
  • a connecting section 27.2 is used, which is connected to the funnel wall 21 via a coupling piece 27.1. It is preferably the case that the assignment is made in such a way that the connecting section 27.2 is flared outwards relative to the funnel contour formed by the funnel wall 21 and facing the funnel space. This makes it easier to fill in the oversized grain from the discharge end 82 of the return conveyor 80.
  • the oversize grain chute 27 preferably has a base part 27.15, which can be bent over from the connecting section 27.2. It is conceivable that the base part 27.15 forms a material guide area 27.4.
  • the material guide area 27.4 can have wear protection elements 27.3, which are attached to the base part 27.15, preferably screwed on.
  • the wear protection elements 27.3 consist of a wear-resistant material. In particular, the wear protection elements 27.3 are more wear-resistant than the material that forms the base part 27.15.
  • the oversize grain chute 27 forms the discharge end of the oversize grain chute 27 at its lower end area.
  • the oversize grain chute 27 has a wall 27.5, which is preferably bent over from the base part 27.15.
  • the oversize grain chute 27 has an adjusting element 28 which can be adjusted between at least a first set and a second set operating position in order to change the material guidance area 27.4. In figure 2 the displayed operating position is shown. The figures 4 and 5 show the set operating position of the oversize grain chute 27.
  • the actuating element 28 has a carrier 28.9, from which a side wall 28.2 can be bent.
  • figure 2 shows that the carrier 28.9 forms a material guide area 28.3 on its front side, which can be covered with wear protection elements 28.1.
  • a bearing 28.4 in particular a swivel bearing, can be used.
  • the pivot bearing can in particular form a pivot axis which is formed and/or arranged in the end region of the oversize grain chute 27 opposite the discharge end of the oversize grain chute 27 .
  • a guide 28.6 can be provided, which can be designed, for example, in the form of an elongated hole.
  • a guide element 28.7 works together with the guide 28.6, which, like figure 5 illustrated, for example, can be mounted in the rear of the base part 27.15.
  • a further guide element 28.5 can be provided in the area of a body edge of the actuating element 28 in order to guarantee stable guidance of the actuating movement of the actuating element 28 in a simple manner.
  • a fold 28.8 and/or a strut 28.10 can be used to stiffen the actuating element, which can be arranged in particular on the rear side of the carrier 28.9.
  • FIG 3 illustrates that a guiding element 27.6 can be arranged in the material guiding area 27.4.
  • the guide element 27.6 has a guide device 27.13, which can be formed by a wall.
  • the guide device 27.13 preferably has one or more wear protection elements 27.12.
  • the wear protection elements 27.12 can be formed from the same material that is used for the wear protection elements 28.1 and 27.3.
  • the guide element 27.6 is pivotally coupled to the oversize grain chute 27 by means of a pivot bearing 27.11.
  • the pivot bearing 27.11 can be formed, for example, by a bore in the guide element 27.6, through which a bearing pin of the oversize grain chute 27 is guided.
  • the pivot bearing 27.11 is preferably housed in a protected manner on the side of the guide device 27.13 opposite the wear protection elements 27.12.
  • the pivot bearing 27.11 can be formed by the support section 27.7.
  • the guide element 27.6 can also have an adjusting section 27.8, which is equipped with a clamping element 27.10.
  • the adjustment of the guide element 27.6 can be guided and/or fixed by means of the adjustment section.
  • the clamping element 27.10 can be braced with the oversize grain chute 27 for fixing.
  • it can be provided, for example, that an elongated hole 27.9 is made in the adjusting section 27.8.
  • the clamping element 20.10 designed in the form of a screw bolt, protrudes through this elongated hole 27.9, it being possible for a nut to be screwed onto the screw bolt in order to effect the clamping.
  • the hopper walls 21 and the rear wall 22 can be moved from the figure 4 transport positions shown in the in figure 2 shown upright operating positions.
  • the machine operator can move the setting element 28 to the in figure 2 or 3 bring exposed operating position shown. This is easily possible since the side wall 28.2 offers him a handle with which he can effect the adjustment movement.
  • the adjusting movement of the adjusting element 28 takes place about the pivot axis of the bearing 28.4.
  • the issued position of the actuating element 28 can be fixed, for example with a clamping element.
  • an automatic fixation for example via a frictional connection and/or by the effect of gravity, is also conceivable.
  • the clamping element can be removed from the guide element 28.7 (see figure 5 ) be educated.
  • the oversize grain is guided by the return conveyor 80 onto the oversize grain chute 27 .
  • the oversized grain enters the material feed via the material guide area 28.3 of the adjusting element 28 and/or the material guide area 27.4 of the base part 27.15.
  • the flow of material in the oversize grain chute 27 can be directed by means of the guide element 27.6 in the direction of the material guide area 28.3 of the adjusting element 28, so that the discharge area of the oversize grain chute 27 shifts more in the direction of the crushing unit 40.
  • the material flow preferably with the deployable control element 28 and/or with the guide element 20.6, is designed in such a way that the oversize grains can be transported via the oversize grain chute 27 bypassing the screen unit 30 to the crushing unit 40 directly or indirectly.
  • the material flow to be designed with the actuating element 28 and/or with the guide element 20.6 in such a way that the oversize is at least partially applied to the screen unit 30, but to an area of the screen unit that is further in the direction of material flow towards is shifted to the crushing unit 40.
  • strainer unit 30 can be relieved.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP22180347.1A 2021-07-30 2022-06-22 Aufbereitungsanlage Pending EP4124387A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021119918.2A DE102021119918B4 (de) 2021-07-30 2021-07-30 Aufbereitungsanlage

Publications (1)

Publication Number Publication Date
EP4124387A1 true EP4124387A1 (de) 2023-02-01

Family

ID=82214341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22180347.1A Pending EP4124387A1 (de) 2021-07-30 2022-06-22 Aufbereitungsanlage

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Country Link
EP (1) EP4124387A1 (zh)
CN (1) CN115672472A (zh)
DE (1) DE102021119918B4 (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112718211A (zh) * 2020-12-29 2021-04-30 广西柯瑞机械设备有限公司 一种履带式反击移动破碎筛分站

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112718211A (zh) * 2020-12-29 2021-04-30 广西柯瑞机械设备有限公司 一种履带式反击移动破碎筛分站

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Publication number Publication date
CN115672472A (zh) 2023-02-03
DE102021119918B4 (de) 2023-02-16
DE102021119918A1 (de) 2023-02-02

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