WO2010144939A1 - Mining and mineral process, system and method - Google Patents
Mining and mineral process, system and method Download PDFInfo
- Publication number
- WO2010144939A1 WO2010144939A1 PCT/AU2009/000772 AU2009000772W WO2010144939A1 WO 2010144939 A1 WO2010144939 A1 WO 2010144939A1 AU 2009000772 W AU2009000772 W AU 2009000772W WO 2010144939 A1 WO2010144939 A1 WO 2010144939A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydrocyclone
- tailings
- discharge
- dewatered cake
- solids
- Prior art date
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
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
- B03B5/34—Applications of hydrocyclones
-
- 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
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- 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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
- B04C5/15—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with swinging flaps or revolving sluices; Sluices; Check-valves
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to the field of mining and mineral processes, systems and methods related thereto.
- the invention relates to recovery of tailings and/or fines from, for example, a mining or mineral processing operation.
- the present invention is suitable for the production of substantially dewatered cake.
- Mine tailings are waste fine material left over after the metals of interest such as lead, zinc, copper, silver, gold and others, have been extracted from the mineral rocks that contained them.
- the mineral separation process especially in older mining operations, is only partially efficient. As a result, after the crushing, grinding and subsequent extraction processes, some of the metal-containing minerals, clays and other non-valuable fractions are left behind as small tailings particles.
- tailings may be dewatered.
- Dewatering tailings to higher degrees than paste like products produces a filtered wet (saturated) and dry (unsaturated) cake that can no longer be transported by pipeline due to its low moisture content.
- a typical moisture content of less than 20% is achieved by using a combination of belt, drum, horizontal and vertical stacked pressure plates and vacuum filtration systems.
- the term 'dry cake' or 'dry stack 1 is used to describe tailings that have a moisture content several percent below saturation.
- These dewatered tailings are normally transported by conveyor or truck, deposited, spread and compacted to form an unsaturated tailings deposit. This type of tailings storage produces what is considered to be a stable deposit requiring no retention bunding and is referred to as 'dry stack'.
- a further method used to reduce dust problems is to deposit tailings (and water) into a dam.
- this also has problems, such as:
- a dam is expensive to construct and maintain to prevent future degradation of the dam itself
- Figure 1 illustrates schematically a typical mining process in which ore 11 is extracted from the mine, crushed and/or sized 12 after which the desired mineral(s) are extracted 13 using known techniques (which are not further described in this specification).
- Tailings 14 result from the extraction process and these are typically deposited as waste to landfill 15, dam(s) 16 and/or deposited back in parts of the mine as backfill 17.
- dam(s) 16 and/or deposited back in parts of the mine as backfill 17.
- This invention can substantially reduce the risk by either eliminating or substantially reducing the use and/or size of tailings dams.
- Tailings Dams by the nature of their operation contain large bodies of process liquor throughout their structure and on the surface which may contain toxic chemicals which present a danger to local fauna.
- An object of the present invention is to provide an improved mining or mineral process, system and/or method.
- a method of, system and/or apparatus for recovering tailings from, for example, a mining or mineral processing operation comprising providing the tailings as an input stream to a hydrocyclone; and dewatering at least one of the output streams of the hydrocyclone.
- a system, apparatus and/or method adapted to process tailings comprising a first hydrocyclone adapted to receive, as an input stream, the tailings, and a screen adapted to dewater an output stream of the first hydrocyclone.
- a Discharge Regulator is also provided to regulate the output stream of the hydrocyclone.
- kit of parts adapted to provide the system, apparatus and/or method as herein disclosed.
- embodiments of the present invention stem from the realization that a process of combining hydrocyclonic separation, and dewatering technologies can be used to concentrate solids in tailings to produce a dewatered cake.
- Dewatered cake can be produced from very fine tailings streams • Dewatered cake can be transported to other locations for reprocessing, blending with other materials to form a cementitious blend for concrete, or disposal without the concern associated with large volumes of water
- waste liquid stream from this novel processing combination can be further clarified by second stage hydrocyclonic separation or more traditional clarification technologies such as thickeners and can then either be returned to the processing circuit to allow for significant reduction in process water usage or pumped into shallow evaporation, pans significantly smaller than previously utilised tailings storage facilities
- tailings dams • Recovery of valuable minerals from existing tailings dams may be more possible and may avoid the need to introduce large volumes of water to pump these solids long distances.
- 'tailings' includes tailings, fines and/or other mineral or mining operations material and/or residue.
- 'mineral' includes elements or compounds which are sought to be extracted from a mining operation.
- Figure 2 illustrates schematically a process according to one aspect of the present invention
- Figure 3 illustrates schematically a process according to another aspect of the present invention.
- Tailings 20 are sourced from any or any combination of sources, such as without limitation: • Tailings dam
- the tailings 20 are then processed in a separator 21.
- the separator is designed with a discharge regulator built in.
- This discharge regulator consists of a slotted rubber "seal" which allows the separator to be operated under vacuum and retain the solids that are separated in the unit until such time as the mass of the solids is sufficient to overcome the vacuum at which time the solids 22 are discharged onto the vibrating screen 23.
- the vibrating screen is fitted with fine slotted panels, or wire mesh, on which a bed of dewatered solids will form.
- the screen design can be optimised to allow various shapes of initial and subsequent dewatering zones, including use of different aperture sizes on the screen panels or mesh as has been the practise in the industry.
- the dewatered solids are thereby treated to produce dewatered cake 24.
- the dewatered cake 24 is not necessarily devoid of moisture, it just has a reduced moisture content as compared with the solids 22 that are output from the separator 21.
- the dewatered cake may be used, without limitation in a variety of applications and/or products, including building and/or construction applications or used in combination with cementitious products to produce concrete which is the subject of other technologies not covered in this invention.
- the dewatered cake can also be recovered as usable product for example coal fines can be recovered to produce a saleable product, other cake material can be used as road base or as filler.
- the dewatered cake may also be stored in a separate dam, dry stack or landfill, if required.
- a tailings stream from, for example, a previous processing step (such as mining) is fed to a feed regulating sump.
- a slurry is then pumped from the sump to a hydocyclone, such as for example, a LinatexTM Hydrocyclone G4 DW fitted with a Discharge Regulator.
- the discharge regulator is a LinatexTM fishtail, however, it is to be understood that any suitable discharge regulator may be used in association with the present invention.
- the density of the feed may be up to approximately 40% solids by weight, however it is preferred that the density is below 25% to ensure maximum recovery to underflow.
- the feed is pumped to the LinatexTM Hydrocyclone and preferably operated at a pressure between 40 and 100Kpa. This is considered a preferred range to achieve a relatively high underflow density whist achieving a relatively high recovery to underflow.
- the thickened underflow from the Discharge Regulator is then fed directly onto the dewatering screen where the deck is preferably sloped to assist in dewatering.
- the deck is sloped at, for example 45 degrees decline.
- a bed of coarse solids form. This bed then acts similar to a sand filter and captures many of the particles including those finer than the apertures on the screen deck.
- Dewatering screens are configured in this way, the first part is a 45 degree decline to assist in building the bed, and then the particles travel up a incline of between 5-10 degrees which helps to slow the travel of material and again assist in retention time and thus dewatering efficiency.
- This bed or "cake” then moves to the end of the screen where a discharge lip assists to further form a bed depth and maximise the dewatered cake density.
- the cake is labelled a "drip free product" and this would equate to somewhere between 7 to 15% moisture depending on the material being treated.
- the screen is preferably fitted with 500 micron slotted aperture decks however smaller apertures can be fitted for the treatment of finer feed size distributions. It is preferred to have about 5-10% of the feed particles coarser than the apertures on the screen deck.
- vibration stroke, dewatering screen inclination angle, discharge weir height and other settings can be varied on the screen to achieve the desired result.
- the fine particles that pass through the screen whilst the bed is forming are captured in the feed sump and may be re-pumped to the hydrocyclone or to another hydrocyclone for re feeding back to the screen.
- any finer particles overflowing from a first hydrocyclone can be captured in an additional sump and then fed into further hydrocyclone(s), this time with or without the Discharge Regulator.
- These further hydrocyclone(s) would be operated at high pressure, up to 300Kpa to capture an additional component of these fine particles to their an additional underflow. The fine particles captured at this stage could then be fed back the dewatering screen for recovery.
- the finer particles may be deposited on the bed further towards the discharge end of the screen on top of an already formed coarse bed. They are then dewatered and captured in the one dewatered cake.
- Figure 3 illustrates schematically a process according to another aspect of the present invention. Tailings 30 are obtained from a variety of sources. These are then processed in a first separator 31 , providing solids 32 to the vibrating screen to be further dewatered 33, resulting in dewatered cake 34. The waste 35 from the first separator may be further processed by a second separator (s) 36 in order to obtain further solids 37 for dewatering. The waste 38 from the
- dewatering process 33 may also be fed back to the first separator 31 and/or the second separators) 36 (not shown).
- a thickener (not shown) may be optionally used to concentrate the waste 39. Concentrated solids collected in the second separator, thickener or other solids concentrating unit may then be returned to the dewatered cake bed as it is forming on the vibrating screen for further dewatering, or treated by more conventional means in much smaller belt presses, vacuum filters or the like or even sent to tailings dams with significantly lower solids loadings than the original tailings stream solids being treated.
- waste 35 from the first separator is discharged to a separate processing stage to remove remaining solids or indeed returned with or without further processing to either the tailings dam or evaporation ponds.
- waste 38 from the second separator could be treated in the same manner.
- copper tailings slurry from a mineral processing operation containing approximately 47% solids and with particle size distribution as shown in Table 1 below was transferred into the feed regulating sump.
- the 'cyclone feed 1 column of Table 1 indicates an exemplary percentage passing of particles.
- the present invention should not be limited to the disclosure of Table 1.
- the tailings slurry was pumped into the hydrocyclone of the following general dimensions 150mm cyclone body with 30mm inlet, a 35mm spigot and 50mm vortex finder, and fitted with a Discharge Regulator at a rate of 5 tonnes per hour at a pressure of 70 - 90 kPa.
- the overflow pipe from the hydrocyclone was arranged to enable the discharge level to be below that of the bottom of the Discharge Regulator by approximately 2 meters in order to create a vacuum at the bottom of the hydrocyclone.
- the overflow pipe is fitted with the Linatex Overflow Rubber Syphon Boot, which ensures the overflow pipe is always full of water and the vacuum is maintained over a range of operating condition.
- a vacuum is preferably formed to enable the solids to be concentrated sufficiently prior to discharge from the hydrocyclone underflow.
- the underflow discharge from the hydrocyclone Discharge Regulator was discharged under gravity when the solid loading was sufficient to open the Discharge Regulator onto the sloped section of the screen deck which was at an angle of approximately 45 deg.
- the screen deck was 2.1 m long and 0.3 m wide and fitted with polyurethane panels with a slotted apertures approximately 250 microns wide and 1.4 mm long on the sloped section which extended 0.9 m and then fitted with similar 500 micron panels on the 5 deg inclined section following the 45 deg section.
- the screen deck was also fitted with dual out of balance vibration motors of 1.3 kW capacity each.
- the screen created a Stoke of 3.5 m. Overflow from the hydrocyclone and material that passed through the screen whilst forming the cake on the screen deck were collected in the feed regulating sump and pumped back up to the hydrocyclone.
- the dewatered cake product was approximately 85% solids with what is considered to be an excellent recovery efficiency of those particles fed to the screen from the hydrocyctone underflow.
- logic blocks e.g., programs, modules, functions, or subroutines
- logic elements may be added, modified, omitted, performed in a different order, or implemented using different logic constructs (e.g., logic gates, looping primitives, conditional logic, and other logic constructs) without changing the overall results or otherwise departing from the true scope of the invention.
- Various embodiments of the invention may be embodied in many different forms, including computer program logic for use with a processor (e.g., a microprocessor, microcontroller, digital signal " processor, or general purpose computer), programmable logic for use with a programmable logic device (e.g., a Field Programmable Gate Array (FPGA) or other PLD), discrete components, integrated circuitry (e.g., an Application Specific Integrated Circuit (ASIC)), or any other means including any combination thereof.
- a processor e.g., a microprocessor, microcontroller, digital signal " processor, or general purpose computer
- programmable logic for use with a programmable logic device
- FPGA Field Programmable Gate Array
- ASIC Application Specific Integrated Circuit
- predominantly all of the communication between users and the server is implemented as a set of computer program instructions that is converted into a computer executable form, stored as such in a computer readable medium, and executed by a microprocessor under the control of an operating system.
- Source code may include a series of computer program instructions implemented in any of various programming languages (e.g., an object code, an assembly language, or a high- level language such as Fortran, C, C++, JAVA, or HTML) for use with various operating systems or operating environments.
- the source code may define and use various data structures and communication messages.
- the source code may be in a computer executable form (e.g., via an interpreter), or the source code may be converted (e.g., via a translator, assembler, or compiler) into a computer executable form.
- the computer program may be fixed in any form (e.g., source code form, computer executable form, or an intermediate form) either permanently or transitorily in a tangible storage medium, such as a semiconductor memory device (e.g, a RAM, ROM, PROM, EEPROM, or Flash-Programmable RAM), a magnetic memory device (e.g., a diskette or fixed disk), an optical memory device (e.g., a CD-ROM or DVD-ROM), a PC card (e.g., PCMCIA card), or other memory device.
- a semiconductor memory device e.g, a RAM, ROM, PROM, EEPROM, or Flash-Programmable RAM
- a magnetic memory device e.g., a diskette or fixed disk
- an optical memory device e.g., a CD-ROM or DVD-ROM
- PC card e.g., PCMCIA card
- the computer program may be fixed in any form in a signal that is transmittable to a computer using any of various communication technologies, including, but in no way limited to, analog technologies, digital technologies, optical technologies, wireless technologies (e.g., Bluetooth), networking technologies, and inter-networking technologies.
- the computer ' program may be distributed in any form as a removable storage medium with accompanying printed or electronic documentation (e.g., shrink wrapped software), preloaded with a computer system (e.g., on system ROM or fixed disk), or distributed from a server or electronic bulletin board over the communication system (e.g., the Internet or World Wide Web).
- Hardware logic including programmable logic for use with a programmable logic device
- implementing all or part of the functionality where described herein may be designed using traditional manual methods, or may be designed, captured, simulated, or documented electronically using various tools, such as Computer Aided Design (CAD), a hardware description language (e.g., VHDL or AHDL) 1 or a PLD programming language (e.g., PALASM 1 ABEL, or CUPL).
- CAD Computer Aided Design
- VHDL or AHDL hardware description language
- PLD programming language e.g., PALASM 1 ABEL, or CUPL
- Programmable logic may be fixed either permanently or transitorily in a tangible storage medium, such as a semiconductor memory device (e.g., a RAM, ROM, PROM, EEPROM, or Flash-Programmable RAM), a magnetic memory device (e.g., a diskette or fixed disk), an optical memory device (e.g., a CD-ROM or DVD-ROM), or other memory device.
- a semiconductor memory device e.g., a RAM, ROM, PROM, EEPROM, or Flash-Programmable RAM
- a magnetic memory device e.g., a diskette or fixed disk
- an optical memory device e.g., a CD-ROM or DVD-ROM
- the programmable logic may be fixed in a signal that is transmittable to a computer using any of various communication technologies, including, but in no way limited to, analog technologies, digital technologies, optical technologies, wireless technologies (e.g., Bluetooth), networking technologies, and internetworking technologies.
- the programmable logic may be distributed as a removable storage medium with accompanying printed or electronic documentation (e.g., shrink wrapped software), preloaded with a computer system (e.g., on system ROM or fixed disk), or distributed from a server or electronic bulletin board over the communication system (e.g., the Internet or World Wide Web).
- a computer system e.g., on system ROM or fixed disk
- a server or electronic bulletin board over the communication system (e.g., the Internet or World Wide Web).
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0924602A BRPI0924602A2 (en) | 2009-06-17 | 2009-06-17 | method for recovering waste from a mining or mineral processing operation, system for processing waste from a mining or mineral processing operation, parts kit, and apparatus adapted for recovering waste and / or providing dehydrated pie. |
PCT/AU2009/000772 WO2010144939A1 (en) | 2009-06-17 | 2009-06-17 | Mining and mineral process, system and method |
AU2009348425A AU2009348425B2 (en) | 2009-06-17 | 2009-06-17 | Mining and mineral process, system and method |
CN2009801609635A CN102458605A (en) | 2009-06-17 | 2009-06-17 | Mining and mineral process, system and method |
EA201270024A EA201270024A1 (en) | 2009-06-17 | 2009-06-17 | SYSTEM AND METHOD OF MINING AND PROCESSING OF MINERAL RESOURCES |
ZA2012/00211A ZA201200211B (en) | 2009-06-17 | 2012-01-10 | Mining and mineral process, system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AU2009/000772 WO2010144939A1 (en) | 2009-06-17 | 2009-06-17 | Mining and mineral process, system and method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010144939A1 true WO2010144939A1 (en) | 2010-12-23 |
Family
ID=43355584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2009/000772 WO2010144939A1 (en) | 2009-06-17 | 2009-06-17 | Mining and mineral process, system and method |
Country Status (6)
Country | Link |
---|---|
CN (1) | CN102458605A (en) |
AU (1) | AU2009348425B2 (en) |
BR (1) | BRPI0924602A2 (en) |
EA (1) | EA201270024A1 (en) |
WO (1) | WO2010144939A1 (en) |
ZA (1) | ZA201200211B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113075080A (en) * | 2021-03-22 | 2021-07-06 | 江苏仕能工业技术有限公司 | Ore pulp monitoring system based on Internet of things |
EP3847133A4 (en) * | 2018-09-04 | 2022-08-31 | Weir Minerals Australia Ltd | Dewatering method and system |
US11433400B2 (en) * | 2019-11-19 | 2022-09-06 | Cde Global Limited | Method and apparatus for washing and grading sand |
US11642679B2 (en) | 2017-02-28 | 2023-05-09 | Cidra Corporate Services Llc | Process configurations to prevent excess regrinding of scavengering concentrates |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3923210A (en) * | 1973-02-22 | 1975-12-02 | Lawjack Equipment Ltd | Automatic discharge regulator |
US3989628A (en) * | 1975-01-03 | 1976-11-02 | Dorr-Oliver Incorporated | Degritting and fiber removal system |
US4101333A (en) * | 1976-08-19 | 1978-07-18 | Joy Manufacturing Company | Method of mine backfilling and material therefor |
US4128474A (en) * | 1977-03-24 | 1978-12-05 | Linatex Corporation Of America | Process for cleaning and dewatering fine coal |
US4138332A (en) * | 1976-07-26 | 1979-02-06 | Schloeffel Paul | Method and device for dewatering solid suspensions |
US4282088A (en) * | 1980-03-03 | 1981-08-04 | Linatex Corporation Of America | Process for cleaning fine coal |
US4541933A (en) * | 1984-05-14 | 1985-09-17 | Armold Clark W | Process for separation of ash from waste activated sludge |
US4818400A (en) * | 1987-12-14 | 1989-04-04 | Eagle-Picher Industries, Inc. | Cyclone and filter belt apparatus for dewatering |
CA2028020A1 (en) * | 1990-09-19 | 1992-03-20 | Jeremy James Lees | Sieve screen deck and separation method |
US5108626A (en) * | 1989-06-07 | 1992-04-28 | Minpro Pty. Limited | Process for recovering course particles from tailings |
US6287363B1 (en) * | 1995-01-24 | 2001-09-11 | Deutsche Voest-Alpine Industrienalagenbau Gmbh | Method of utilizing dusts produced during the reduction of iron ore |
US20070272596A1 (en) * | 2006-05-25 | 2007-11-29 | Titanium Corporation Inc. | Process for recovering heavy minerals from oil sand tailings |
-
2009
- 2009-06-17 AU AU2009348425A patent/AU2009348425B2/en not_active Expired - Fee Related
- 2009-06-17 CN CN2009801609635A patent/CN102458605A/en active Pending
- 2009-06-17 BR BRPI0924602A patent/BRPI0924602A2/en not_active IP Right Cessation
- 2009-06-17 EA EA201270024A patent/EA201270024A1/en unknown
- 2009-06-17 WO PCT/AU2009/000772 patent/WO2010144939A1/en active Application Filing
-
2012
- 2012-01-10 ZA ZA2012/00211A patent/ZA201200211B/en unknown
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3923210A (en) * | 1973-02-22 | 1975-12-02 | Lawjack Equipment Ltd | Automatic discharge regulator |
US3989628A (en) * | 1975-01-03 | 1976-11-02 | Dorr-Oliver Incorporated | Degritting and fiber removal system |
US4138332A (en) * | 1976-07-26 | 1979-02-06 | Schloeffel Paul | Method and device for dewatering solid suspensions |
US4101333A (en) * | 1976-08-19 | 1978-07-18 | Joy Manufacturing Company | Method of mine backfilling and material therefor |
US4128474A (en) * | 1977-03-24 | 1978-12-05 | Linatex Corporation Of America | Process for cleaning and dewatering fine coal |
US4282088A (en) * | 1980-03-03 | 1981-08-04 | Linatex Corporation Of America | Process for cleaning fine coal |
US4541933A (en) * | 1984-05-14 | 1985-09-17 | Armold Clark W | Process for separation of ash from waste activated sludge |
US4818400A (en) * | 1987-12-14 | 1989-04-04 | Eagle-Picher Industries, Inc. | Cyclone and filter belt apparatus for dewatering |
US5108626A (en) * | 1989-06-07 | 1992-04-28 | Minpro Pty. Limited | Process for recovering course particles from tailings |
CA2028020A1 (en) * | 1990-09-19 | 1992-03-20 | Jeremy James Lees | Sieve screen deck and separation method |
US6287363B1 (en) * | 1995-01-24 | 2001-09-11 | Deutsche Voest-Alpine Industrienalagenbau Gmbh | Method of utilizing dusts produced during the reduction of iron ore |
US20070272596A1 (en) * | 2006-05-25 | 2007-11-29 | Titanium Corporation Inc. | Process for recovering heavy minerals from oil sand tailings |
Non-Patent Citations (1)
Title |
---|
GREEN D.W. ET AL: "Perry's Chemical Engineers' Handbook, 8th Edition, Section 8", 2007, MCGRAW-HILL, NEW YORK, ISBN: 0071422943, pages: 5, 68 - 71 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11642679B2 (en) | 2017-02-28 | 2023-05-09 | Cidra Corporate Services Llc | Process configurations to prevent excess regrinding of scavengering concentrates |
EP3847133A4 (en) * | 2018-09-04 | 2022-08-31 | Weir Minerals Australia Ltd | Dewatering method and system |
US11433400B2 (en) * | 2019-11-19 | 2022-09-06 | Cde Global Limited | Method and apparatus for washing and grading sand |
CN113075080A (en) * | 2021-03-22 | 2021-07-06 | 江苏仕能工业技术有限公司 | Ore pulp monitoring system based on Internet of things |
Also Published As
Publication number | Publication date |
---|---|
EA201270024A1 (en) | 2012-07-30 |
CN102458605A (en) | 2012-05-16 |
AU2009348425B2 (en) | 2014-09-11 |
ZA201200211B (en) | 2012-09-26 |
AU2009348425A1 (en) | 2012-02-02 |
BRPI0924602A2 (en) | 2016-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2016200542B2 (en) | Process for recovering value metals from ore | |
US9687892B2 (en) | Combined tailings disposal for minerals processes | |
EA037444B1 (en) | Reducing the need for tailings storage dams in mineral flotation | |
AU2009348425B2 (en) | Mining and mineral process, system and method | |
KR20210027439A (en) | Systems and methods for cleaning and grading particulate matter | |
JP6411909B2 (en) | Detoxification system for arsenic contaminated soil | |
CN110498624B (en) | Method for preparing cement iron correction material from iron tailings in full-grain level | |
McPhail et al. | Practical tailings slurry dewatering and tailings management strategies for small and medium mines | |
AU2009100586A4 (en) | Mining and Mineral Process, System and Method | |
JP2017148760A (en) | Detoxification treatment system of heavy metal contaminated soil | |
CA2636645A1 (en) | A method for producing a bulk concentrate for recovery of precious metals | |
JP4123510B2 (en) | Contaminated soil treatment system | |
JP5754697B1 (en) | Concentrate production method and concentrate production system | |
KR102287042B1 (en) | System device process for classification of various materials | |
CN106540799A (en) | A kind of iron ore beneficiating factory mine tailing high efficiente callback technological process | |
AU2014277706B1 (en) | Concentrate manufacturing method and concentrate manufacturing system | |
JP4072527B2 (en) | Production and supply system for lightweight fluidized soil | |
CN104017990A (en) | Hydrometallurgical ore leaching method | |
CN216460135U (en) | Device suitable for coal mine coal slime continuous processing | |
CN109091952A (en) | Tailing (tailings) recycles Zero discharging system and technique | |
RU2176280C2 (en) | Method of extraction of uranium from ores | |
RU2165301C2 (en) | Method of production of concentrate and technological concentration system for realization of this method | |
EA042426B1 (en) | EXTRACTION OF VALUABLE ORE COMPONENTS USING THE Dump LEACHING PROCESS | |
OA19635A (en) | Process for recovering value metals from ore. | |
PL232492B1 (en) | Method for recovery of metallic remains from the copper mining floatation wastes and management of final wastes obtained by this method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980160963.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09845953 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 002118-2011 Country of ref document: PE |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009348425 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10275/DELNP/2011 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 201270024 Country of ref document: EA |
|
ENP | Entry into the national phase |
Ref document number: 2009348425 Country of ref document: AU Date of ref document: 20090617 Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09845953 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: PI0924602 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: PI0924602 Country of ref document: BR Kind code of ref document: A2 Effective date: 20111219 |