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
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C1/00—Magnetic separation
  • B03C1/02—Magnetic separation acting directly on the substance being separated
  • B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
  • B03C1/12—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operation; with movable pole pieces
• • 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
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C1/00—Magnetic separation
  • B03C1/02—Magnetic separation acting directly on the substance being separated
  • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
  • B03C1/24—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields
  • B03C1/247—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields obtained by a rotating magnetic drum
• • 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
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C1/00—Magnetic separation
  • B03C1/02—Magnetic separation acting directly on the substance being separated
  • B03C1/30—Combinations with other devices, not otherwise provided for
• • 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
  • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
  • B03D1/00—Flotation
  • B03D1/14—Flotation machines
  • B03D1/24—Pneumatic
• • 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
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C2201/00—Details of magnetic or electrostatic separation
  • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
• • 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
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C2201/00—Details of magnetic or electrostatic separation
  • B03C2201/20—Magnetic separation of bulk or dry particles in mixtures

Definitions

• the invention relates to a device for separating magnetic and / or magnetizable particles from a suspension comprising non-magnetic and / or non-magnetizable particles, further comprising
• the invention further relates to a use of such a device.
• Magnetic separators are already known and are insbesonde ⁇ re used in the mining industry and the metal industry, but also in other industries. That's how it describes
• RU 2365421 Cl a magnetic separator with a drum and a magnet assembly, which is formed around the drum axis of the drum rotating and includes permanent magnets, for a wet separation.
• Other types of magnetic separators that use circulating magnetized tapes or traveling magnetic fields are also known.
• Flotation is a physical separation process for separating fine-grained mixtures of solids, such as ores and gangue, in an aqueous slurry by means of air bubbles due to a different surface wettability of the particles contained in the suspension.
• WO 2006/069995 A1 describes a flotation device in the form of a pneumatic flotation cell with a housing comprising a flotation chamber, with at least one nozzle arrangement, here referred to as ejectors, furthermore with at least one gassing device, called aeration devices or aerators when using air, and a Collecting container for a foam product formed during flotation.
• a flotation device in the form of a pneumatic flotation cell with a housing comprising a flotation chamber, with at least one nozzle arrangement, here referred to as ejectors, furthermore with at least one gassing device, called aeration devices or aerators when using air, and a Collecting container for a foam product formed during flotation.
• an offset with Rea ⁇ genzien suspension is introduced from water and fine-grained solids via at least one nozzle array in a Flota ⁇ tion chamber in general.
• the reagents are intended to allow in particular the valuable
• the At least one nozzle arrangement gas, in particular air, supplied ⁇ which comes into contact with the hydrophobic particles in the suspension.
• the hydrophobic particles adhere to forming gas bubbles, so that the gas bubble structures, also called aeroflocs, float and form the foam product on the surface of the suspension.
• the foam product is discharged into a collecting container and usually thickened.
• the quality of the foam product and the separation efficiency of the driving Ver ⁇ flotation is dependent inter alia on the collision probability between a hydrophobic particles and a gas bubble. The higher the probability of collision, the greater the number of hydrophobic particles that adhere to a gas bubble, rise to the surface and together with the particles form the foam product.
• pneumatic flotation are, for example, the relaxation flotation or column flotation.
• hybrid flotation cells which represent a combination of a pneumatic flotation cell with a column-like flotation cell formed from fines , fines with particle diameters in the range of 20 ym and less are deposited particularly well.
• the Rlickwerksflotation is based on the incorporation of gas bubbles in the flotation process, but will be ⁇ characterized not as a pneumatic flotation process generally.
• the production of desired gas bubbles, in particular desired size distributions of the gas bubbles takes place by means of an agitator. Suitable for carrying out such a method ⁇ flotation devices are therefore also referred to as inter alia Rckenszellen.
• the above flotation processes are generally carried out by means of corresponding flotation devices, in particular flotation cells.
• a flotation is carried out in such a way that the value ⁇ material is discharged upward with the foam.
• a flotation cell can also be operated in reverse, wherein the recyclable material containing magnetic and / or magnetizable particles at the lower outlet is discharged from the flotation cell and non-magnetic and / or non-magnetizable particles, the so-called waste materials, via the foam be discharged upward from the flotation chamber.
• This type of flotation also called “reverse flotation” is used in particular in the treatment of iron ores.
• the two mentioned separation processes ie the magnetic separation and the flotation, each require their implementation a minimum volume or mass related machine or process throughput and a certain Anlagenaufsteil ⁇ area, the machine base and further mixing vessel for chemical conditioning of the suspension, eg for the addition hydrophobizing flotation chemicals.
• a base for the laying of pipelines and the installation of pumps is needed, which connect the different parts of the system of magnetic separation with those of the flotation. It is an object of the invention to provide a cost effective and easy to operate device for separating magnetic
• the invention is solved for the device for separating magnetic and / or magnetisable particles from a suspension containing non-magnetic and / or non-magnetizable particles by comprising:
• At least one flotation cell At least one flotation cell
• the at least one magnetic separator and the at least one flotation cell are vertically stacked angeord ⁇ net and connected to each other via a piping system, such that the at least one magnetic separator as well as the at least one flotation of at least one recyclable material comprising at least a portion of the magnetic see and / or magnetizable particles can be flowed through.
• the vertical central axis of a magnetic separator and a flotation cell overlap.
• an over ⁇ lobing the required footprint of a magnetic separator and a required base area for a flotation cell of at least 50% has proven itself. It has proven particularly useful if the at least one flotation cell is arranged vertically above the at least one Mag ⁇ netseparators.
• a Flota ⁇ tion cell is arranged vertically above a magnetic separator.
• the flow conditions in flotation cells can be adjusted in such a way that agglomerates forming in the suspension of magnetic and / or magnetizable particles, ie recyclable particles, and furthermore nonmagnetic and / or nonmagnetizable particles, ie waste materials, are destroyed.
• a guide device which generates a turbulent flow of the valuable material stream. Accordingly, as a guide, for example, a device can be used which generates strong swirling in the material flow, displaces it into a swirling motion or greatly accelerates it.
• At least one pad valve between the Flota ⁇ tion cell and the magnetic separator is arranged, through which the Wertstoffström from the flotation cell in the magnetic sepa- rator is convertible.
• the tampon valve allows a
• the at least one magnetic separator may be attached ⁇ arranged vertically above the at least one flotation cell.
• a magnetic separator is arranged vertically above a flotation cell.
• a guide device which the high shearing force to from the at least one magnet ⁇ separator coming Wertstoffström exerts and destroys agglomerates contained and thus promotes the separation of in the Agglo ⁇ meraten still contained waste. It is also preferable here a guide, which generates a turbulent flow of the recyclable material stream.
• Leitein ⁇ direction thus can serve as a device, for example, produces strong turbulence in Wertstoffström, this set into a swirling motion, or greatly accelerated.
• the at least one flotation cell comprises Minim ⁇ least an ejector for injecting the at least one substance of value stream to a flotation chamber of the flotation cell, which is connected in ⁇ magnetic separator via the pipe line system with the at least one ejector.
• the at least one magnetic separator is preferably formed by a drum separator described above.
• the at least one flotation cell is preferably formed by a hybrid flotation cell described above.
• the at least one magnetic separator and the at least one flotation cell are arranged vertically stacked in a common support and / or housing device. This facilitates the arrangement of the separation units to each other and the installation of the piping system in a small space.
• FIGS. 1 to 5 are intended to illustrate devices according to the invention by way of example and schematically.
• 1 shows a first device
• FIG. 5 shows a fourth device with two magnetic separators.
• FIG. 1 shows schematically a first device 1 for separating magnetic and / or magnetizable particles from a suspension 9 further comprising non-magnetic and / or non-magnetizable particles, comprising a Magnetsepara- tor 3 and a flotation cell 2.
• 2 shows an off ⁇ 1 with a concrete representation of the flotation cell 2 and the magnetic separator 3.
• the magnetic separator 3 and the flotation cell 2 are in a common carrier and / or housing device 4 space-saving vertical überei ⁇ stacked arranged and interconnected via a piping system, such that the magnetic separator 3 as well as the flotation cell 2 of a Wertstoffström 10, 10 'comprising at least a portion of the magnetic and / or magnetizable particles can be flowed through.
• the flotation cell 2 is above the magnetic separator 3 instal ⁇ lines.
• the piping system not shown in detail comprises generally and in the figures all areas in which the value ⁇ material flow 10, 10 'between the magnetic separator (s
• Flotation cell (s) is transported or directed.
• the suspension 9 is injected via ejectors 2b (see FIG 2) in the flotation chamber 2a of the flotation cell 2 and in a Wertstoffström 10 containing magnetic and / or magnetizable particles, and a waste stream 11 contained ⁇ tend non-magnetic and / or non-magnetizable particle isolated.
• 3 shows schematically a second apparatus 1 'for separating magnetic and / or magnetizable particles from a suspension 9 further containing non-magnetic and / or non-magnetizable particles with two flotation cells 2, 2' positioned above a magnetic separator 3 angeord ⁇ are net.
• the magnetic separator 3 and the flotation cells 2, 2 ' are preferably in a common support and / or
• Housing device 4 arranged vertically stacked one above the other in a space-saving manner and connected to one another via a pipeline system such that the magnetic separator 3 and the flotation cells 2, 2 'can be flowed through by a recyclable material 10, 10' comprising at least a portion of the magnetic and / or magnetizable particles is.
• the flotation cells 2, 2 ' are installed above the magnetic separator 3.
• a guide 7 is arranged, which flows through the material flow 10.
• the guide device 7 is set up to impart to the waste stream 10 a swirl which dissolves contained agglomerates of magnetic and / or magnetizable particles as well as non-magnetic and / or non-magnetizable particles.
• the guide 7 is formed here for example by a piece of pipe with a helical baffle insert and integrated into the piping system.
• the suspension 9 is injected into the flotation cells 2, 2 'and in a Wertstoffström 10 containing magnetic
• the waste stream 11 flows in each case via a Schaumsammeirinne not shown here in detail.
• the recyclable material flow 10 from the flotation cells 2, 2 ' which are configured in particular as hybrid flotation cells, now flows via a tampon valve 6 down into the magnetic separator 3, where a further separation of the valuable material flow 10 into a still higher-quality recyclable material flow 10' and another Waste stream 11 'takes place.
• FIG. 4 shows schematically a third device 1 '' for separating magnetic and / or magnetizable particles from a suspension 9 further comprising non-magnetic and / or non-magnetizable particles with a Magnetsepa ⁇ rator 3, which is arranged above a flotation cell 2.
• the magnetic separator 3 and the flotation cell 2 are stacked vertically stacked in a common support and / or housing device 4 and interconnected via a pipe ⁇ line system, such that the magnetic separator 3 as well as the flotation cell 2 of a value ⁇ stoffström 10, 10th 'comprising at least a portion of the magnetic and / or magnetis ⁇ magnetizable particles is flowed through.
• the magnetic separator 3 is installed above the flotation cell 2.
• the suspension 9 is introduced into the magnetic separator 3, and 'containing magnetic ⁇ tables and / or magnetizable particles as well as one from ⁇ downdraft 11' in a Wertstoffström 10 containing non-magnetic and / or non-magnetizable particles separated.
• the Wertstoffström 10 'from the magnetic separator 3 d then flows downwardly in the flotation cell 2, in particular on its ejector, where a wide ⁇ re separating the valuable substance stream 10' in an even higher quality Wertstoffström 10 and a further waste stream 11 takes place.
• 5 shows schematically a fourth apparatus] _ '' 'TO m separating magnetic and / or magnetizable particles from a suspension 9 further containing non-magnetic and / or non-magnetizable particles with two Magnetsepa- generators 3, 3', above a Flotation cell 2 angeord ⁇ net are.
• the magnetic separators 3, 3 'and the flotation cell 2 are stacked vertically stacked in a common support and / or housing device 4 and interconnected via a piping system, such that the magnetic separators 3, 3' as well as the flotation cell 2 of a Wertstoffström 10th , 10 'comprising at least a portion of the magnetic and / or magnetizable particles can be flowed through.
• the magnetic separators 3, 3 ' are installed above the flotation cell 2.
• Figures 1 to 5 show only examples of the device according to the invention.
• the number of magnetic separators, the flotation cells and their arrangement to each other within the scope of the invention vary.
• the positioning of the magnetic separators and flotation cells to each other can vary within wide limits, as long as the concept that a space-saving arrangement with vertical stacking selected is, is respected.
• the illustrated devices are particularly suitable for the separation of ore suspensions, in particular of iron ore suspensions, in which the valuable stream usually leaves the flotation cell through the lower outlet and not via the foam collecting flutes 2c.

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• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Biotechnology (AREA)
• Manufacture And Refinement Of Metals (AREA)
• Paper (AREA)
• Processing Of Solid Wastes (AREA)
• Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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Citations (5)

Family Cites Families (4)

• 2012
  • 2012-06-19 EP EP12172517.0A patent/EP2676733A1/fr not_active Withdrawn
• 2013
  • 2013-05-23 WO PCT/EP2013/060562 patent/WO2013189685A1/fr not_active Ceased
  • 2013-05-23 CN CN201380032003.7A patent/CN104394994A/zh active Pending
  • 2013-05-23 RU RU2014143267A patent/RU2014143267A/ru not_active Application Discontinuation

Patent Citations (5)

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