CA1237383A - Concentrator - Google Patents

Concentrator

Info

Publication number
CA1237383A
CA1237383A CA000498054A CA498054A CA1237383A CA 1237383 A CA1237383 A CA 1237383A CA 000498054 A CA000498054 A CA 000498054A CA 498054 A CA498054 A CA 498054A CA 1237383 A CA1237383 A CA 1237383A
Authority
CA
Canada
Prior art keywords
belt
concentrator
drive
inlet side
conveyor belt
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.)
Expired
Application number
CA000498054A
Other languages
French (fr)
Inventor
Hans Hoffmann
Leopold Stoeckl
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.)
ORLON Ltd
Original Assignee
ORLON 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 ORLON Ltd filed Critical ORLON Ltd
Priority to CA000498054A priority Critical patent/CA1237383A/en
Priority to DE8585116664T priority patent/DE3578583D1/en
Priority to AT85116664T priority patent/ATE54264T1/en
Priority to EP19850116664 priority patent/EP0230479B1/en
Priority to AU68456/87A priority patent/AU6845687A/en
Priority to PCT/EP1986/000762 priority patent/WO1987003827A1/en
Application granted granted Critical
Publication of CA1237383A publication Critical patent/CA1237383A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/68Washing granular, powdered or lumpy materials; Wet separating by water impulse
    • B03B5/70Washing granular, powdered or lumpy materials; Wet separating by water impulse on tables or strakes
    • B03B5/72Washing granular, powdered or lumpy materials; Wet separating by water impulse on tables or strakes which are movable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B11/00Feed or discharge devices integral with washing or wet-separating equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/04Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/08Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on vanners

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE

A concentrator for predetermined values. The concentrator has an endless conveyor belt extending longitudinally and tilted transversely from an upper inlet side to a lower outlet side and having an outlet end and an inlet end. There is a plurality of recesses in the conveyor belt. A water supply is at the inlet side and there is a table to receive the conveyor belt.
The table is resiliently supported and there is a drive for the belt to drive the belt longitudinally. The table and belt can be vibrant. A receiving zone for the prede-termined values is positioned at the outlet end of the belt.

Description

~3~3~3 This invention relates to a concentrator.
Concentrators are well known in the mining industry. Their func-tion is simply to take on ore and isolate from the ore the metal values that are required.
At the simplest level a prospector's pan is a con-centrator.
Concentrators are particularly important in the mining o~ valuable metals. Valuable metaLs Erequently occur as relatively fine particles in huge quantities of top soil and rocks. It is in this type of gold source that the present application finds application, that is in placer mining, where loose surface ma-terial is washed for gold. In such a procedure crushing of the loose sur-face material may take place as a preliminary step.
Geologically a placer is a superficial deposit, often of fluviatile origin, rich in heavy ore minerals.
Any concentrator is, of course, measured by the percentage of available values that it can extract.
There is a constant search to improve this per-cen-tage.
The present invention is believed to provide percentage recoveries higher than any previously known.
Accordingly the present invention is a con-centrator Eor predetermined values r the concen-trator , ~æ

comprising an endless conveyor belt extending longitudi-nally and tilted transversely Erom an upper inlet side -to a lower outlet side and having an outlet end and an inlet end; a plurality of recesses in the conveyor belt;
water supply means at the inlet side; a table to receive the conveyor belt; resilient means supporting the table;
drive means Eor the belt to drive the belt longitudinally; vibration means Eor the table and belt;
a receivin~ zone ~or ~he predetermined values at the o~ltlet end oE the belt.
Aspects oE the invention are illustrated, merely by way oE example, in the accompanying drawing which is an isometric pro~ection oE a concentrator a^cording to the present invention.
The drawing shows a concentrator comprising an endless conveyor belt 2 extending longitudinally of the concentrator and tilted transversely from an upper inlet side 4 to a lower outlet side 6. There is an inlet end 8 for ore and an outlet end 10 for the extracted values.
The inlet side 4 receives water and the outlet side 6 receives water and unwanted material from the ore.
The belts, which is typically of rubber, is Eormed with a plurality o-E recesses 1~ as shown generally in the drawing. The depths and other configurational details of the recesses will vary depending on the material being concen-trated.

~;~3~7;~

Water supply means comprise headers 14 feeding into a trough 16 at the inlet side 4 of the belt 2. The trough 16 is conveniently divided by ba~Efles 18 to ensure a uniEorm Elow oE water across the belt in the direction oE the arrows 20. At the outlet side oE a belt there is a Eurther trough 22 to receive water and waste products.
The unwanted materials are Eed from trough 22 through pipes 24 and away to a convenient dump.
The concentrator has a table 26 to receive the convevor belt 2. 'l'he table is mounted or supported by resilient means in the Eorm oE ~eaE springs 28 e~t:ending along each side oE the table 26. The illustrated embodi-ment oE the invention has a base frame 30 of I-beams that acts as a convenient level Eor the concen-trator.
The belt 2 is mounted on a driven roller 32 and an idler roller 34. In the illustrated embodiment the driven roller 34 is at the outlet end 10 and the idler roller 34 at the inlet end 8. The driven roller is dri-ven by a belt 36 connected to a speed reducer in turn connected to an electric motor. Such a means of driving a conveyor is entirely conventional.
At inlet end 8 the idler roller 34 is mounted with each end in members 38 Eormed with a channel 40.
Vibration means is in the form oE an electric motor 42 driving an eccentric 44 housed in box 46. A connecting rod 48 extends Erom the eccentric 44 to the table 26.

~7~

The electric motor 42 runs -the eccentric 44 imparts a vibration to the table 26 and thus to the belt ~, the vibration bein~ indicated by the broken line arrow 50.
The channels 40 in which the idler roller 34 is mounted permit the vibration to take place.
The concentrator has a receiving zone 52 for the predetermined values at the outlet end 10 oE the belt 2. The desired values can be collected Erom the receivin~ zone where they are deposited as the belt passes on the Lower run oE its path~
The springs 28 are desirably made oE wood.
In use the ore to be treated is -fed, for example Ervm a conveyor Eed by a crusher, onto the belt 2 at the inlet end 8. The machine typically handles ore at a rate o~ about two to three cubic yards per minute.
Water flow is established across the belt by feeding water to the trough 16 typically at a rate of about 1200 to 2500 litres per minute. The belt is driven by drive of the roller 32. Motor 42 is started to vibrate the moving belt. The frequency of vibration is adjusted by adjusting the stroke, as permitted by the slotted moun-tings for the idler roller, and by varying the speed of motor 42. rrypically conveyor speed can be controlled and the table angle is adjustable depending on the material to be treated and the rate of production required.
Using the invention rapid vibration is imparted ~37~3 to the moving belt. Metal values, necessarily heavier than the ore in which they occur, are forced into the recesses in the belt while the unwanted ore is washed across the surEace of the belt over the outlet side, together with the relatively large flow of water. The required metal values are then deposi-ted in the collec-tion zone.
The waste material may be removed by a conveyor or any other convenient means oE removin~ waste material.
'l'he present invention is particul~rly suitable ~or the concentration oE an ore having particles in the range about 6 mesh to 300 mesh, that is from about 3 mm to 0.0~ mm. The invention finds particular application in placer mining but it is envisaged that there will be substantial applications in the general field of extracted metallurgy. For example it is believed that in the mining of tungsten and barite the concentrator of the present invention would find application in the ben-ficiation circuits.

Claims (7)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A concentrator for predetermined values, the concentrator comprising:
an endless conveyor belt extending longitudi-nally and tilted transversely from an upper inlet side to a lower outlet side and having an outlet end and an inlet end;
a plurality of discrete recesses arranged in longitudinal and transverse rows in the conveyor belt;
water supply means extending substantially the full length of the inlet side;
a table to receive the conveyor belt;
resilient means supporting the table;
drive means for the belt to drive the belt longitudinally;
vibration means for the table and belt;
a receiving zone for the predetermined values at the outlet end of the belt.
2. A concentrator as claimed in claim 1 in which the belt is positioned on a driven roller at one end and over an idler roller at the other end.
3. A concentrator as claimed in claim 1 in which the water supply means comprises a trough arranged along the inlet side and pipes to feed water to the trough.
4. A concentrator as claimed in claim 1 in which the resilient means comprises leaf springs.
5. A concentrator as claimed in claim 11 in which the springs are wooden.
6. A concentrator as claimed in claim 1 in which the drive means for the belt is an electric motor driving through a speed reducer and a belt drive to a roller at the outlet end of the belt.
7. A concentrator as claimed in claim 1 in which the vibration means comprises an electric motor;
an eccentric driven by the electric motor;
a connector extending from the eccentric to the table.
CA000498054A 1985-12-18 1985-12-18 Concentrator Expired CA1237383A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA000498054A CA1237383A (en) 1985-12-18 1985-12-18 Concentrator
DE8585116664T DE3578583D1 (en) 1985-12-18 1985-12-31 METHOD AND DEVICE FOR SORTING ORES, MINERALS ETC.
AT85116664T ATE54264T1 (en) 1985-12-18 1985-12-31 METHOD AND EQUIPMENT FOR SORTING ORES, MINERALS ETC.
EP19850116664 EP0230479B1 (en) 1985-12-18 1985-12-31 Method of and device for sorting ores, minerals, etc.
AU68456/87A AU6845687A (en) 1985-12-18 1986-12-18 Process and installation for sorting ores, minerals, etc
PCT/EP1986/000762 WO1987003827A1 (en) 1985-12-18 1986-12-18 Process and installation for sorting ores, minerals, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000498054A CA1237383A (en) 1985-12-18 1985-12-18 Concentrator

Publications (1)

Publication Number Publication Date
CA1237383A true CA1237383A (en) 1988-05-31

Family

ID=4132120

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000498054A Expired CA1237383A (en) 1985-12-18 1985-12-18 Concentrator

Country Status (3)

Country Link
EP (1) EP0230479B1 (en)
CA (1) CA1237383A (en)
DE (1) DE3578583D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102172558B (en) * 2011-03-09 2012-10-10 李钱江 Shaking-table cross flow belt concentrator
CN108212501B (en) * 2016-12-15 2023-06-16 彭家山 Push suspension vibration blanket concentrating machine
CN114798152B (en) * 2022-06-01 2023-10-13 石城县华昌矿山机械有限公司 Shaking table convenient for collecting mineral aggregate
CN116571438B (en) * 2023-05-25 2023-12-12 江苏金红新材料股份有限公司 Sorter and separation method for separating garnet and titanium ore mixture

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE242822C (en) *
DE136379C (en) *
FR356112A (en) * 1904-07-15 1905-11-21 Julius Buss Improvements in devices for concentrating and separating ores
GB191307233A (en) * 1913-03-26 1914-03-26 George Hicks Harris Improvements in Concentrating Apparatus for Cleaning, Separating and Classifying Metalliferous Ores.
DE391355C (en) * 1920-06-25 1924-03-04 Geza Rez Ore processing hearth
US2825462A (en) * 1956-02-20 1958-03-04 Hackney Ray Wet-ore belt stratifier
AU416294B2 (en) * 1967-05-08 1971-08-18 Minerals separation device
AU3468468A (en) * 1969-03-07 1970-09-10 Vanbergen Tjapko Method of producing vibratory motion in rotating shaft
GB1480934A (en) * 1974-10-18 1977-07-27 Bartles Ltd Method of and apparatus for separating fractions of different density contained in ores or other solid materials

Also Published As

Publication number Publication date
DE3578583D1 (en) 1990-08-09
EP0230479A1 (en) 1987-08-05
EP0230479B1 (en) 1990-07-04

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