EP1719560A2 - Séparateur vibrant à haut rendement - Google Patents

Séparateur vibrant à haut rendement Download PDF

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Publication number
EP1719560A2
EP1719560A2 EP06006669A EP06006669A EP1719560A2 EP 1719560 A2 EP1719560 A2 EP 1719560A2 EP 06006669 A EP06006669 A EP 06006669A EP 06006669 A EP06006669 A EP 06006669A EP 1719560 A2 EP1719560 A2 EP 1719560A2
Authority
EP
European Patent Office
Prior art keywords
vibration screen
hollow space
thickness
sheet
disposed
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.)
Withdrawn
Application number
EP06006669A
Other languages
German (de)
English (en)
Other versions
EP1719560A3 (fr
Inventor
Sergio Baragetti
Bruno Fausto Zappa
Giovanni Lazzaretto
Mario Flavio Carlotto
Angelo Terranova
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.)
Bernardi Impianti International SpA
Original Assignee
Bernardi Impianti International SpA
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 Bernardi Impianti International SpA filed Critical Bernardi Impianti International SpA
Publication of EP1719560A2 publication Critical patent/EP1719560A2/fr
Publication of EP1719560A3 publication Critical patent/EP1719560A3/fr
Withdrawn legal-status Critical Current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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens

Definitions

  • the present invention relates to a vibration screen of the type comprising a case-shaped structure or body provided with suitable screening surfaces and supported by a base through springs, to be set in vibration by a suitable vibrating device.
  • Screening is an operation done for the most different purposes.
  • the following purposes are mentioned: separating the biggest fragments (or refuse) contained in a mixture, either to eliminate them or to reduce them by crushing or grinding; separating the smallest (fine) fragments both to agglomerate them in the granulation workshops and to eliminate them as waste or recycle them for other uses; classifying the crushed goods according to their commercial sizes (materials for building roads, abrasives, coals, etc.); classifying the goods for operations of mechanical or physico-chemical treatment that shall take place with materials of homogeneous sizes (ore concentration, coal washing, selection of cube-shaped materials, etc.); material drying, etc.
  • vibration screens transport of the material on the screening surface (grids, perforated plates, wire nets or meshes, for example) is obtained by impulse, while vibration of the mass gives rise to a stratification bringing the greatest sizes to the top surface and the smallest (the finest) ones to the layer base, which is very useful for screening.
  • the vibration-generating device can be a merely mechanical, electromechanical (motor and eccentric masses) or also electromagnetic device.
  • a vibration screen which comprises a case-shaped body with parallel side walls between which perforated screening surfaces are disposed and which is suspended over a base through spring means and is provided with vibrating devices, characterized in that the side walls are each made up at least partly of two plate sheets closely spaced and parallel so that each of them forms one of the two faces of the wall and both delimit a hollow space therebetween, the sheets being interconnected with each other by means of interconnecting elements disposed in the hollow space.
  • Fig. 1 shown in Fig. 1 is a screening machine generally identified with 10, which is made in accordance with the invention.
  • This machine comprises an upper portion or case-shaped body 11, supported by a base 13 through spring elements 12 (such as helical springs).
  • the upper portion is set in vibration through a motor vibrating device or assembly 14 known in the art (of the rotating-mass type, for example) that is supported on top by an H-shaped beam 15 disposed transversely between the side walls 16 of the body.
  • screening surfaces 17 possibly made of several layers
  • the case-shaped body also has a bottom 18, of a net-like type for example.
  • the springs for elastic support are connected to brackets 25 symmetrically projecting from the side walls.
  • the side walls have an intermediate "bulge" between the ends, close to which the beam is connected.
  • each side wall 16 is at least partly made up, over an upper portion thereof, of two plate sheets 19, 20 (consisting of sheet steel, for example) that are parallel to each other and closely spaced so as to form the two faces of the wall and to delimit a narrow hollow space 21 therebetween.
  • the sheets of each wall are interconnected with each other at several different points by interconnecting elements 22, 23 disposed in the hollow space.
  • interconnecting elements 22, 23 disposed in the hollow space.
  • These elements can advantageously be plate baffles 22 and welded bolts or pins 23, as clearly shown in Fig. 2 as well.
  • the hollow space is advantageously closed along the plate edges by a metal strap 24 suitably shaped and welded.
  • said baffles can be disposed in right-angled net-like structures at least close to end regions of the wall where the elastic support brackets are placed.
  • the two plate sheets forming the wall prefferably have a thickness included between 2 and 8 mm and, more particularly, a different thickness values from each other. More specifically, a plate can advantageously have a thickness of approximately 1.5-2.5 times (preferably about twice) the other plate.
  • the thickness of the outer plate is greater than the thickness of the inner one and the beam 15 has its ends connected to the outer plate of each wall.
  • the inner plate it was found advantageous for the inner plate to have a thickness of approximately 3 mm, the outer plate having a thickness of about 6 mm.
  • a thickness of approximately 5-10 times the plate thickness was found advantageous for the hollow space.
  • said thickness is included between 2 and 10 cm and, in particular, it is of about 8 cm.
  • An inert filling material or an antiresonance filling material can be advantageously inserted in the hollow space between the plates, which material can be rubber, polyurethane foam or the like.
  • the filling material also aims at dampening detrimental vibrations and preventing or reducing undesirable sounds.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP06006669A 2005-05-04 2006-03-30 Séparateur vibrant à haut rendement Withdrawn EP1719560A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20050810 ITMI20050810A1 (it) 2005-05-04 2005-05-04 Vaglio vibrante ad alte prestazioni

Publications (2)

Publication Number Publication Date
EP1719560A2 true EP1719560A2 (fr) 2006-11-08
EP1719560A3 EP1719560A3 (fr) 2009-04-15

Family

ID=36746930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06006669A Withdrawn EP1719560A3 (fr) 2005-05-04 2006-03-30 Séparateur vibrant à haut rendement

Country Status (4)

Country Link
EP (1) EP1719560A3 (fr)
CN (1) CN1857797A (fr)
IT (1) ITMI20050810A1 (fr)
RU (1) RU2006115294A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946851A1 (fr) * 2007-01-17 2008-07-23 Haver & Boecker oHG Tamiseur vibrant
WO2008150874A1 (fr) * 2007-05-29 2008-12-11 Blueline Enterprises, Inc. Séparateur de matériaux
CN103611681A (zh) * 2013-11-18 2014-03-05 河南太行振动机械股份有限公司 一种反共振振动筛
EP3332879A1 (fr) 2016-12-07 2018-06-13 Ammann Switzerland Ltd. Tamis vibrant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423847B (zh) * 2016-11-30 2018-08-14 西南石油大学 扭转弹簧耦合的四短激振电机椭圆振动筛
CN106423848B (zh) * 2016-12-01 2018-10-12 西南石油大学 扭转弹簧耦合的四短激振电机直线振动筛

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311242A (en) * 1981-01-29 1982-01-19 Taconite Engineering & Manufacturing Co. Bearing cartridge supports for roll screens and the like
GB2123520A (en) * 1982-07-08 1984-02-01 Viking Dynamics Limited Vibrating screen
DE3716664A1 (de) * 1987-05-19 1988-12-01 Buehler Miag Gmbh Auslesemaschine fuer koerniges gut
WO1993019859A1 (fr) * 1992-04-06 1993-10-14 Sweco, Incorporated Separateur a tamis vibratoires

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311242A (en) * 1981-01-29 1982-01-19 Taconite Engineering & Manufacturing Co. Bearing cartridge supports for roll screens and the like
GB2123520A (en) * 1982-07-08 1984-02-01 Viking Dynamics Limited Vibrating screen
DE3716664A1 (de) * 1987-05-19 1988-12-01 Buehler Miag Gmbh Auslesemaschine fuer koerniges gut
WO1993019859A1 (fr) * 1992-04-06 1993-10-14 Sweco, Incorporated Separateur a tamis vibratoires

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946851A1 (fr) * 2007-01-17 2008-07-23 Haver & Boecker oHG Tamiseur vibrant
US7980393B2 (en) 2007-01-17 2011-07-19 Haver & Boecker Ohg Vibrating screening machine
WO2008150874A1 (fr) * 2007-05-29 2008-12-11 Blueline Enterprises, Inc. Séparateur de matériaux
CN103611681A (zh) * 2013-11-18 2014-03-05 河南太行振动机械股份有限公司 一种反共振振动筛
EP3332879A1 (fr) 2016-12-07 2018-06-13 Ammann Switzerland Ltd. Tamis vibrant

Also Published As

Publication number Publication date
ITMI20050810A1 (it) 2006-11-05
CN1857797A (zh) 2006-11-08
RU2006115294A (ru) 2007-11-27
EP1719560A3 (fr) 2009-04-15

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