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WO1993003863A1 - Triage de minerais - Google Patents

Triage de minerais Download PDF

Info

Publication number
WO1993003863A1
WO1993003863A1 PCT/AU1992/000442 AU9200442W WO9303863A1 WO 1993003863 A1 WO1993003863 A1 WO 1993003863A1 AU 9200442 W AU9200442 W AU 9200442W WO 9303863 A1 WO9303863 A1 WO 9303863A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
particulate material
mesh
washing
feeder
Prior art date
Application number
PCT/AU1992/000442
Other languages
English (en)
Inventor
Albert Peter Hawkins
Original Assignee
Technological Resources Pty. Ltd.
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 Technological Resources Pty. Ltd. filed Critical Technological Resources Pty. Ltd.
Priority to AU24805/92A priority Critical patent/AU661713B2/en
Publication of WO1993003863A1 publication Critical patent/WO1993003863A1/fr

Links

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
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • 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
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
    • B07C5/366—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means during free fall of the articles

Definitions

  • This invention relates to ore sorting and includes a method and apparatus for use in automatic ore sorting. Discussion of Prior Art
  • apparatus for sorting particulate material comprising a mesh conveyor belt with washing nozzles positioned above and below the belt to wash particulate material on the belt from both sides of the belt.
  • the mesh of the belt defines openings that are approximately 50% of the linear screen size of th bottom size material sorted by the apparatus, and the conveyor belt is formed of a balanced weave of stainless steel that runs at a speed of 2 metres/sec.
  • the mesh conveyor belt is positioned below the end of a vibrating feeder. Scanning and ejection means may be positioned downstream and below the mesh conveyor belt to act on particulate material launched in free fall from the end of the mesh belt.
  • apparatus for sorting particulate material comprising: a feed hopper arranged to feed particulate material onto a vibrating feeder, means to wash the particulate material whilst on the feeder, a conveyor belt of open mesh construction arranged to run below one end of the feeder, washing jets positioned on both sides of the mesh belt, and scanning and ejection means downstream and below the mesh belt to, in use, act on particulate material launched in free fall from the end of the mesh belt.
  • a method of sorting particulate material comprising the steps of: a) releasing the particulate material from a feed hopper onto a vibrating feeder, b) washing the particulate material whilst on the vibrating feeder, c) causing said particulate material to free fall onto a mesh belt, d) accelerating said particulate material on said mesh belt past washing jets positioned above and below said belt, e) washing said particulate material by use of the washing jets, f) launching said particulate material at the en of the mesh belt into free fall, g) scanning the particulate material during free fall, and h) ejecting particles from the path of the free fall by high pressure fluid released from ejector valves controlled by the scanner.
  • the method includes controlling the speeds of the vibrating feeder and mesh belt so that the horizontal velocity change of particulate material at transfer from the feeder to the mesh belt up to 5:1.
  • Figure 1 is a schematic view of the layout of or sorting apparatus embracing the invention.
  • Figure 2 is a plan view of a mesh belt forming part of the apparatus. Description of the Preferred Embodiment
  • FIG. 1 Apparatus for ore sorting is shown in Figure 1. Ore in the form of rocks are drawn out of feed hopper 1 by linear vibrating feeder 2. The rocks 3 are fed along the deck of the feeder at a velocity of about 0.5m/sec. By th time the rocks reach the discharge edge 2A of the feeder they are between 1 and 4 layers thick.
  • the rocks undergo preliminary washing by means of high velocity sprays 4. Wash water is partially drained through wedge-wire screens 14 in the base of the feeder near the discharge end 2A.
  • a cylindrical device 13 assists in deflecting via surface tension, excess water and accompanying slimes which pass to the rear of a splitting plate 15.
  • the rocks fall typically 200mm onto a mesh wire belt 6, moving at a high horizontal velocity compared with the horizontal component of the rock velocity off the vibrating feeder 2.
  • the belt velocity may be around 2m/sec.
  • the rocks By allowing the rocks to fall through about 200m (the distance D in Figure 1), the rocks tend to separate vertically under gravity so that when they land on the mes belt 6, they maintain the separation.
  • the mesh if appropriately selected, acts to capture each rock at the speed of the belt, and discourages rolling and bouncing which would occur in the normally used solid belts. It ha been accepted previously that the maximum horizontal velocity change at such a transfer point is 2:1. The use of the mesh belt 6 has enabled this to be increased to better than 5:1.
  • the rocks 9 are launched into free air, and follow a parabolic trajectory under the influence of their forward horizontal motion due to the belt speed, and to gravity accelerating the rocks downward.
  • a sensing system 7 typically a line-scan optical scanner
  • fluid ejector valves 8 act to select individual particles in the stream that require removal, and these particles are blasted to the opposite side of a splitter plate 17 to the bulk of the feed material.
  • a tundish 10 collects water, slimes, and fine material.
  • a different arrangement e.g. a non-metallic belt when usin electromagnetic sensors placed under the belt in order to select rocks with specific conductive or magnetic properties.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Sorting Of Articles (AREA)

Abstract

Appareil de triage de matières particulaires comprenant: une trémie d'alimentation (1) agencée de façon à alimenter un distributeur vibrant (2) en matières particulaires, des éléments permettant de laver les matières particulaires alors qu'elles se trouvent sur le distributeur, un transporteur à bande (6) présentant une structure à grandes mailles et agencé de façon à se déplacer sous une extrémité du distributeur, des jets de lavage placés de chaque côté de la bande à mailles, et des éléments de détection par balayage et d'expulsion (7 et 8) placés en aval par rapport à la bande à mailles et au-dessous de celle-ci afin d'agir sur les matières particulaires tombant librement à partir de l'extrémité de la bande à mailles.
PCT/AU1992/000442 1991-08-22 1992-08-24 Triage de minerais WO1993003863A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU24805/92A AU661713B2 (en) 1991-08-22 1992-08-24 Ore sorting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK7876 1991-08-22
AUPK787691 1991-08-22

Publications (1)

Publication Number Publication Date
WO1993003863A1 true WO1993003863A1 (fr) 1993-03-04

Family

ID=3775637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000442 WO1993003863A1 (fr) 1991-08-22 1992-08-24 Triage de minerais

Country Status (2)

Country Link
WO (1) WO1993003863A1 (fr)
ZA (1) ZA926325B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017974A1 (fr) * 1993-12-30 1995-07-06 Huron Valley Steel Corporation Systeme de tri de dechets metalliques
EP0671350A1 (fr) * 1994-03-09 1995-09-13 Hauni Maschinenbau Aktiengesellschaft Transporteur à vibrations pour matière en vrac, en particulier tabac
WO1997046327A1 (fr) * 1996-06-07 1997-12-11 Derrick Corporation Separateur de gumbo
US6910587B2 (en) * 2002-08-02 2005-06-28 Varco I/P, Inc. Gumbo separator methods and apparatuses
CN101862700A (zh) * 2010-06-18 2010-10-20 东平华锴机电设备有限公司 振动洗矿机
CN102505147A (zh) * 2011-11-02 2012-06-20 杭州天峰纺织机械有限公司 一种带有振动式分离带的分离机
CN103084265A (zh) * 2013-02-06 2013-05-08 北海高岭科技有限公司 一种选矿制浆设备
JP2015526268A (ja) * 2012-06-05 2015-09-10 ビューラー・アクチエンゲゼルシャフトＢｕｅｈｌｅｒ ＡＧ 穀物選別方法および装置
DE202014105905U1 (de) * 2014-12-05 2016-03-08 Imro Maschinenbau Gmbh Anordnung von Blasköpfen für eine sensorgesteuerte Separationsvorrichtung, insbesondere mit Lavaldüsen
DE202014105906U1 (de) * 2014-12-05 2016-03-08 Imro Maschinenbau Gmbh Anordnung von Blasköpfen für eine sensorgesteuerte Separationsvorrichtung, insbesondere mit Ringdüsen
US9785851B1 (en) 2016-06-30 2017-10-10 Huron Valley Steel Corporation Scrap sorting system
IT202000022012A1 (it) * 2020-09-18 2022-03-18 Elica Asm S R L Macchina e metodo per visionare un prodotto sfuso in polvere
US12427547B2 (en) 2018-12-14 2025-09-30 Mmd Design & Consultancy Limited Material conveyor, system and method for the movement of material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014053A (en) * 1932-04-08 1935-09-10 Horace B Rogers Vegetable washing device
DD125602A1 (fr) * 1976-04-26 1977-05-04
AU3894078A (en) * 1977-08-16 1980-02-21 Sphere Investments Ltd. Separator
CA1125706A (fr) * 1977-10-04 1982-06-15 Gunson S.A. (Proprietary) Limited Methode et appareil de concentration
EP0166610A2 (fr) * 1984-06-27 1986-01-02 Anglo American Corporation of South Africa Limited Appareil et procédé de séparation d'un composant solide d'un autre composant solide en suspension dans un liquide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014053A (en) * 1932-04-08 1935-09-10 Horace B Rogers Vegetable washing device
DD125602A1 (fr) * 1976-04-26 1977-05-04
AU3894078A (en) * 1977-08-16 1980-02-21 Sphere Investments Ltd. Separator
CA1125706A (fr) * 1977-10-04 1982-06-15 Gunson S.A. (Proprietary) Limited Methode et appareil de concentration
EP0166610A2 (fr) * 1984-06-27 1986-01-02 Anglo American Corporation of South Africa Limited Appareil et procédé de séparation d'un composant solide d'un autre composant solide en suspension dans un liquide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACT, Accession No. 52320Y/30, Class J01P41; & DD,A,125 602, (LANGNICKEL H.), 4 May 1977. *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017974A1 (fr) * 1993-12-30 1995-07-06 Huron Valley Steel Corporation Systeme de tri de dechets metalliques
US5520290A (en) * 1993-12-30 1996-05-28 Huron Valley Steel Corporation Scrap sorting system
US5676256A (en) * 1993-12-30 1997-10-14 Huron Valley Steel Corporation Scrap sorting system
EP0671350A1 (fr) * 1994-03-09 1995-09-13 Hauni Maschinenbau Aktiengesellschaft Transporteur à vibrations pour matière en vrac, en particulier tabac
US5660265A (en) * 1994-03-09 1997-08-26 Hauni Maschinenbau Ag Vibratory conveyor for particles of bulk material
WO1997046327A1 (fr) * 1996-06-07 1997-12-11 Derrick Corporation Separateur de gumbo
US6910587B2 (en) * 2002-08-02 2005-06-28 Varco I/P, Inc. Gumbo separator methods and apparatuses
CN101862700A (zh) * 2010-06-18 2010-10-20 东平华锴机电设备有限公司 振动洗矿机
CN102505147A (zh) * 2011-11-02 2012-06-20 杭州天峰纺织机械有限公司 一种带有振动式分离带的分离机
JP2015526268A (ja) * 2012-06-05 2015-09-10 ビューラー・アクチエンゲゼルシャフトＢｕｅｈｌｅｒ ＡＧ 穀物選別方法および装置
CN103084265A (zh) * 2013-02-06 2013-05-08 北海高岭科技有限公司 一种选矿制浆设备
DE202014105905U1 (de) * 2014-12-05 2016-03-08 Imro Maschinenbau Gmbh Anordnung von Blasköpfen für eine sensorgesteuerte Separationsvorrichtung, insbesondere mit Lavaldüsen
DE202014105906U1 (de) * 2014-12-05 2016-03-08 Imro Maschinenbau Gmbh Anordnung von Blasköpfen für eine sensorgesteuerte Separationsvorrichtung, insbesondere mit Ringdüsen
US9785851B1 (en) 2016-06-30 2017-10-10 Huron Valley Steel Corporation Scrap sorting system
US12427547B2 (en) 2018-12-14 2025-09-30 Mmd Design & Consultancy Limited Material conveyor, system and method for the movement of material
IT202000022012A1 (it) * 2020-09-18 2022-03-18 Elica Asm S R L Macchina e metodo per visionare un prodotto sfuso in polvere
EP3970868A1 (fr) * 2020-09-18 2022-03-23 Elica ASM S.r.l. Machine et procédé de visualisation d'un produit en poudre en vrac

Also Published As

Publication number Publication date
ZA926325B (en) 1993-03-11

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