EP4124392A1 - Dispositif tamis permettant de tamiser des matières en vrac - Google Patents

Dispositif tamis permettant de tamiser des matières en vrac Download PDF

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Publication number
EP4124392A1
EP4124392A1 EP22186427.5A EP22186427A EP4124392A1 EP 4124392 A1 EP4124392 A1 EP 4124392A1 EP 22186427 A EP22186427 A EP 22186427A EP 4124392 A1 EP4124392 A1 EP 4124392A1
Authority
EP
European Patent Office
Prior art keywords
clamping
screw
cross
struts
strut
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
EP22186427.5A
Other languages
German (de)
English (en)
Inventor
Matthias Egger
Karl Nussbaumer
Michael Krapf
Christian Huber
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.)
Sbm Mineral Processing GmbH
Original Assignee
Sbm Mineral Processing 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 Sbm Mineral Processing GmbH filed Critical Sbm Mineral Processing GmbH
Publication of EP4124392A1 publication Critical patent/EP4124392A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645—Screening surfaces built up of modular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces

Definitions

  • the present invention relates to a screening device for screening bulk material according to the preamble of claim 1.
  • Corresponding screening machines in particular oscillating screening machines or vibration screening machines, are used for classifying, screening and dewatering bulk materials and the like.
  • cross braces used to be fitted with welded flange points which served to receive the bolts for bolting the longitudinal braces, the cross braces in turn being bolted to the side panels of the case.
  • the object of the present invention is to at least partially improve the stated disadvantages of the prior art and/or to create a possibility with which a more compact variant of the connection between transverse and longitudinal struts can be implemented and/or a connection variant can be implemented which represents a higher bearing protection against vibration loads and/or with which higher loads can be withstood.
  • the transverse struts are surrounded to a large extent - more precisely: at least 60% - by the contacting enclosing component, as a result of which a clamping force is then built up to a large extent - more precisely: over the largest possible area of the circumference - can be transferred to the corresponding cross brace, whereby the clamping effect can be significantly increased by increasing the clamping surface even with the same clamping force.
  • the configuration according to the invention makes it possible to introduce clamping forces into the cross strut not only on one side, as is known in the prior art, which means that it is now possible, for example with a circular cross section of the cross strut, for the clamping force viewed in the clamping cross section to be symmetrical over or around the entire cross strut to distribute.
  • the enclosing component has an opening corresponding to the external dimensions of the cross strut cooperating with the enclosing component - preferably a bore - has for receiving the cross brace.
  • the opening of the enclosing component is designed larger by a defined factor than the external dimensions of the cross strut cooperating with the enclosing component.
  • a defined factor of enlargement can be given, for example, by a corresponding fitting tolerance.
  • a clamping force can be implemented in a simple manner by inserting the clamping element in the slotted area, in that a compressive force is built up in the area of the slot, which leads to a reduction in the clamping cross-section, or direct force transmission or results in the effect of clamping forces on the cross brace.
  • the at least one clamping element can be in the form of a screw, preferably realized with a screw head on a side of the clamping device which faces the longitudinal strut.
  • lockbolts are also understood as screws or fittings.
  • the clamping element which is designed as a screw, can be used to clamp the clamping device to the cross brace by screwing the screw to a nut.
  • the screw head is arranged on a side facing the longitudinal strut, so that the screw attachment of the screw is freely accessible for assembly or disassembly of the nut.
  • a longitudinal strut is screwed or connected to the connecting device.
  • the clamping element designed as a screw not only clamps the clamping device to the crossbar, but also simultaneously screws the longitudinal bar to the clamping device and thus to the crossbar clamped to the clamping device.
  • the fastening device is designed as a screw connection, preferably which screw connection is arranged with a screw head on a side of the clamping device facing the longitudinal struts and particularly preferably cooperates with a screw nut.
  • the screw head is arranged on a side facing the longitudinal strut, so that the free end of the screw is as free as possible for assembly or disassembly of a nut in order to facilitate assembly and/or disassembly.
  • transverse struts are connected to the side parts by screw connections, preferably in a grid of the side parts.
  • a corresponding grid of the side parts can be given, for example, by a drilling pattern on the side parts, it being possible for screws to be passed through the holes in order to attach the cross braces to the side parts.
  • the drilling pattern and/or grid of the side parts can, for example, offer several adjustment options for the cross braces relative to one another in order to ensure adjustability of the cross braces relative to one another, with different screen linings being able to be used.
  • the clamping device with its clamping cross-section can be brought into connection with the cross strut along an axial clamping length, which clamping length in a ratio of 0.3 to 0.7, preferably 0.4 to 0.6, to a diameter of the clamping cross section.
  • cross struts cooperating with the at least one clamping device are designed with a round, preferably circular, cross section.
  • the clamping device is made of a steel material, preferably structural steel.
  • the screening device 1 has a housing 3 which has two side parts 2 .
  • Screen linings 5 are arranged between the side parts 2 and are connected via the transverse struts 4 and the longitudinal struts 6 (in not visible in this view) are connected to the housing 3, more precisely: the side parts 2.
  • the screen linings 5 together with the transverse struts 4 and the longitudinal struts 6 form so-called screen decks, with three screen decks arranged one above the other being arranged in this exemplary embodiment of the screening device 1 .
  • a bulk material to be screened is now placed on the top screen deck, with the screen linings 5 being equipped with a mesh size that decreases downwards, so that different grades of grain can be separated by the screening device 1 from top to bottom and thus classified.
  • FIG 2 shows a view of the embodiment of the screening device 1 of FIG 1 , where it can be seen in a better detail how the cross braces 4 are screwed to the side parts 2.
  • the clamping devices 7 are provided on the transverse struts 4 and are clamped to the transverse struts 4 .
  • the longitudinal struts 6 on which the screen panels 5 are mounted are screwed to the clamping devices 7 .
  • FIGS. 3a to 3c show the attachment of a transverse strut 4 with clamping devices 7 and the longitudinal struts 6 in different views.
  • These enclosing components 8 have a slot 11, which releases the opening 10, in which the cross brace 4 is arranged, to the environment.
  • a compressive force can be applied to the slot 11 by means of a screw connection, as a result of which a clamping force is generated between the clamping device 7 and the cross brace 4 .
  • longitudinal struts 6 are screwed to the clamping device 7 via the screw connections.
  • Flanges 17 are also provided, via which the cross brace 4 can be connected to the side parts 2 .
  • the clamping devices 7 are in the Figures 4a and 4b shown in more detail in a sectional view in an assembly, reference being made to these figures below for a more detailed explanation.
  • the enclosing component 8 has an opening 10 , which opening 10 is designed to accommodate the cross brace 4 .
  • the opening 10 has a diameter 16, with the cross strut 4 having a diameter 16 along the longitudinal axis of the cross strut 4 over a clamping length 15 (see 3c ) is clamped.
  • the enclosing component 8 is equipped with a slot 11 on one side, which slot 11 exposes the opening 10 to the environment.
  • the clamping device can be clamped in relation to the cross brace 4 via the clamping element 9 (designed as a screw 12 in this exemplary embodiment) by exerting a compressive force on the slotted part of the component 8, as a result of which the slot 11 closes and elastic and/or plastic deformation occurs of the component 8 is made.
  • the clamping element 9 designed as a screw 12 in this exemplary embodiment
  • the screw 12 provided as the clamping element 9 cooperates with a screw nut 13 , the longitudinal strut 6 being screwed to the component 8 via the generation of the clamping force, also with the aid of the screw 12 .
  • the component 8 has a bore in which the fastening device 14 is arranged, which is also designed as a screw 12 with a screw nut 13 .
  • This fastening device 14 which is designed as a screw 12, screwed the longitudinal strut 6 to the clamping device 7 or the component 8.
  • the exemplary embodiment shown has the significant advantage that the component 8 can first be pushed over the transverse strut 4 .
  • the longitudinal strut 6 can be connected to the enclosing component 8 in advance via the fastening device 14, more precisely: the screw 12 and the nut 13, whereby an exact positioning in the axial direction of the cross strut 4 can then be carried out by the Component 8 relative to the cross member 4 is still movable.
  • the component 8 and thus the clamping device 7 can be fastened by means of the clamping element 9, which is designed as a screw 12 and a screw nut 13, with the longitudinal strut 6 also being additionally secured in position with the Clamping element 9 (more precisely: the screw 12) relative to the clamping device 7 can be screwed.
  • the clamping element 9 which is designed as a screw 12 and a screw nut 13
  • the longitudinal strut 6 also being additionally secured in position with the Clamping element 9 (more precisely: the screw 12) relative to the clamping device 7 can be screwed.
  • the screws 12 can be arranged with their screw heads on a side of the clamping device 7 facing the longitudinal strut 6 so that the free end of the screw 12 can be easily removed for assembly or disassembly is accessible to attach the nut 13, tighten or loosen and remove.
  • a further advantage of this exemplary embodiment is that the components can be roughly positioned using a screw 12, which means that a fitter, for example, only ever needs one hand to tighten or loosen a screw 12, with the other hand still being available to him to position, hold or vary the position of the longitudinal strut 6, the transverse strut 4 or the clamping device 7.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP22186427.5A 2021-07-30 2022-07-22 Dispositif tamis permettant de tamiser des matières en vrac Pending EP4124392A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50627/2021A AT524561B1 (de) 2021-07-30 2021-07-30 Siebvorrichtung zum Sieben von Schüttgut

Publications (1)

Publication Number Publication Date
EP4124392A1 true EP4124392A1 (fr) 2023-02-01

Family

ID=82399754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22186427.5A Pending EP4124392A1 (fr) 2021-07-30 2022-07-22 Dispositif tamis permettant de tamiser des matières en vrac

Country Status (2)

Country Link
EP (1) EP4124392A1 (fr)
AT (1) AT524561B1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619200A1 (de) * 1976-04-30 1977-11-10 Kinski Ernst Vorrichtung zum beliebigen kuppeln von stahlrohren
US4840728A (en) 1988-03-14 1989-06-20 Conn-Weld Industries, Inc. Vibrating screening apparatus
EP0699839A1 (fr) 1990-08-06 1996-03-06 Conn-Weld Industries, Inc. Plaque détachable verrouillable à un cadre
CN202700803U (zh) * 2012-06-19 2013-01-30 中国矿业大学(北京) 一种振动筛支撑筛板的装置
EP1946852B1 (fr) 2007-01-17 2013-04-24 Haver & Boecker oHG Crible
GB2515489A (en) 2013-06-24 2014-12-31 Cde Global Ltd Vibrating screen and support beam therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT345211B (de) * 1977-02-15 1978-09-11 Hutter & Schrantz Ag Befestigung eines siebbodens
DE3533514A1 (de) * 1985-09-20 1987-03-26 T R Plast Gmbh & Co Kg Vorrichtung zum sieben von erdreich, sand od. dgl.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619200A1 (de) * 1976-04-30 1977-11-10 Kinski Ernst Vorrichtung zum beliebigen kuppeln von stahlrohren
US4840728A (en) 1988-03-14 1989-06-20 Conn-Weld Industries, Inc. Vibrating screening apparatus
EP0699839A1 (fr) 1990-08-06 1996-03-06 Conn-Weld Industries, Inc. Plaque détachable verrouillable à un cadre
EP1946852B1 (fr) 2007-01-17 2013-04-24 Haver & Boecker oHG Crible
CN202700803U (zh) * 2012-06-19 2013-01-30 中国矿业大学(北京) 一种振动筛支撑筛板的装置
GB2515489A (en) 2013-06-24 2014-12-31 Cde Global Ltd Vibrating screen and support beam therefor

Also Published As

Publication number Publication date
AT524561B1 (de) 2022-07-15
AT524561A4 (de) 2022-07-15

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