WO2001064347A3 - Spiral concentrator unit - Google Patents

Spiral concentrator unit Download PDF

Info

Publication number
WO2001064347A3
WO2001064347A3 PCT/ZA2001/000027 ZA0100027W WO0164347A3 WO 2001064347 A3 WO2001064347 A3 WO 2001064347A3 ZA 0100027 W ZA0100027 W ZA 0100027W WO 0164347 A3 WO0164347 A3 WO 0164347A3
Authority
WO
WIPO (PCT)
Prior art keywords
backing layer
polyurethane
mould
layer
concentrator unit
Prior art date
Application number
PCT/ZA2001/000027
Other languages
French (fr)
Other versions
WO2001064347A2 (en
Inventor
Marcel Albert Rocher
Original Assignee
Multotec Process Equip Pty Ltd
Marcel Albert Rocher
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 Multotec Process Equip Pty Ltd, Marcel Albert Rocher filed Critical Multotec Process Equip Pty Ltd
Priority to AU46006/01A priority Critical patent/AU4600601A/en
Publication of WO2001064347A2 publication Critical patent/WO2001064347A2/en
Publication of WO2001064347A3 publication Critical patent/WO2001064347A3/en

Links

Classifications

    • 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
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/626—Helical separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • B29L2001/007—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/008—Profiled members, e.g. beams, sections having a longitudinal cross-section

Abstract

According to a first aspect of the invention, there is provided a process for manufacturing a spiral concentrator unit including the steps of providing a first mould (10) for moulding an inner, slurry bearing polyurethane layer; providing a fibreglass backing layer (13), located so as to create an enclosed cavity (12) between the first mould and the backing layer; and filling the mould cavity (12) with polyurethane, allowing the polyurethane to cure and bond with the backing layer (13) so as to produce a spiral trough with a uniform, high wear resistant inner layer of polyrethane and a relatively cheaper fibreglass backing layer.
PCT/ZA2001/000027 2000-03-02 2001-03-02 Spiral concentrator unit WO2001064347A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46006/01A AU4600601A (en) 2000-03-02 2001-03-02 Spiral concentrator unit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA99/6471 2000-03-02
ZA2000/0117 2000-03-02
ZA996471 2000-03-02
ZA200000117 2000-03-02

Publications (2)

Publication Number Publication Date
WO2001064347A2 WO2001064347A2 (en) 2001-09-07
WO2001064347A3 true WO2001064347A3 (en) 2002-02-21

Family

ID=27145394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2001/000027 WO2001064347A2 (en) 2000-03-02 2001-03-02 Spiral concentrator unit

Country Status (2)

Country Link
AU (1) AU4600601A (en)
WO (1) WO2001064347A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080105995A1 (en) * 2006-11-08 2008-05-08 Outokumpu Technology Oyj a public limited company of Finland Method and apparatus for making spiral separators
US20080211134A1 (en) * 2006-11-08 2008-09-04 Outotec Oyj Method and apparatus for making spiral separators using sequential heating and cooling
CN108357035B (en) * 2018-02-02 2023-10-03 广州市华英防腐设备有限公司 Spiral chute mold and use method thereof
WO2021119718A1 (en) * 2019-12-20 2021-06-24 Orekinetics Investments Pty Ltd Manufacturing method and spiral trough element
CN112275441A (en) * 2020-09-15 2021-01-29 江西铭鑫冶金设备有限公司 Spiral chute made of crushed resin powder of waste printed circuit board and manufacturing process of spiral chute

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918933A (en) * 1960-08-25 1963-02-20 Nat Res Dev Improvements relating to moulding of reinforced polyester resin articles
FR2513567A1 (en) * 1981-09-30 1983-04-01 Peugeot Aciers Et Outillage Composite comprising reinforced epoxy! resin - over-moulded with polyurethane, having high mechanical and thermal resistance, for prodn. of automobile parts
AU4416385A (en) * 1984-06-25 1986-01-02 Minpro Pty. Limited Moulded spiral
US4563279A (en) * 1981-07-03 1986-01-07 Wright Douglas C Spiral separators
US4731270A (en) * 1986-06-16 1988-03-15 Kent Edward W Laminated trough for a spiral concentrator and process for construction of same
GB2231054A (en) * 1989-03-09 1990-11-07 Hans Jurgens Grobler Mineral separation equipment manufacturing method from polyurethanes
WO1996007525A1 (en) * 1994-09-02 1996-03-14 Rover Group Limited A method of producing a scratch resistant coating on a plastics substrate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918933A (en) * 1960-08-25 1963-02-20 Nat Res Dev Improvements relating to moulding of reinforced polyester resin articles
US4563279A (en) * 1981-07-03 1986-01-07 Wright Douglas C Spiral separators
FR2513567A1 (en) * 1981-09-30 1983-04-01 Peugeot Aciers Et Outillage Composite comprising reinforced epoxy! resin - over-moulded with polyurethane, having high mechanical and thermal resistance, for prodn. of automobile parts
AU4416385A (en) * 1984-06-25 1986-01-02 Minpro Pty. Limited Moulded spiral
US4731270A (en) * 1986-06-16 1988-03-15 Kent Edward W Laminated trough for a spiral concentrator and process for construction of same
GB2231054A (en) * 1989-03-09 1990-11-07 Hans Jurgens Grobler Mineral separation equipment manufacturing method from polyurethanes
WO1996007525A1 (en) * 1994-09-02 1996-03-14 Rover Group Limited A method of producing a scratch resistant coating on a plastics substrate

Also Published As

Publication number Publication date
WO2001064347A2 (en) 2001-09-07
AU4600601A (en) 2001-09-12

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