AU2011224015B2 - Separator for the separation of magnetizable secondary resource particles from a suspension, its use and method - Google Patents
Separator for the separation of magnetizable secondary resource particles from a suspension, its use and method Download PDFInfo
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- 239000000725 suspension Substances 0.000 title claims abstract description 98
- 239000002245 particle Substances 0.000 title claims abstract description 88
- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005291 magnetic effect Effects 0.000 claims abstract description 54
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 230000004308 accommodation Effects 0.000 claims abstract description 5
- 238000004458 analytical method Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 206010038743 Restlessness Diseases 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 9
- 239000002699 waste material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000479907 Devia <beetle> Species 0.000 description 1
- 241001282736 Oriens Species 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000007564 ultrasound attenuation spectroscopy Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Classifications
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- 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
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
-
- 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
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
-
- 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
- B03C1/253—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 linear motor
-
- 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
- B03C2201/22—Details of magnetic or electrostatic separation characterised by the magnetical field, special shape or generation
-
- 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
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C2003/006—Construction of elements by which the vortex flow is generated or degenerated
-
- 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
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/001—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with means for electrostatic separation
Abstract
Separator for the separation magnetizable secondary resource particles from a suspension, its use and method Abstract Separator (l',1'',1''') for the separation of magnetizable secondary resource particles from a suspension (100) contain ing further non-magnetizable particles, wherein the separator (1',1'',1''') comprises a pipe-like or hollow cylindrical re actor (la), through which the suspension (100) can flow, with an inlet aperture (lb) for the suspension (100) and an outlet aperture (lc), wherein at least one magnetic field-generating device (3) for the generation of a deflecting magnetic field which varies over time, in particular of a wandering magnetic field, is arranged on the outer periphery of the reactor (la), and with at least one pipeline (ld), which is assigned to the outlet aperture (1c) and branches off from the reactor (la) for the accommodation of a secondary resource streams (12) comprising predominantly the secondary resource particles, characterized in that the separator (l',l'',l''') further com prises a feed arrangement (50,50',50'') upstream of the inlet aperture (1b) in the direction of flow, which is set up to im part a helical movement to the suspension (100) before entry into the reactor (la).
Description
S&F Ref: P009291 AUSTRALIA PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name and Address Siemens Aktiengesellschaft, of Wittelsbacherplatz 2, of Applicants: 80333, MOnchen, Germany BASF SE, of Carl-Bosch-Strasse 38, 67056, Ludwigshafen am Rhein, Germany Actual Inventor(s): Vladimir Danov Klaus Dennerlein Bernd Gromoll Werner Hartmann Alexej Michailovski Wolfgang Schmidt Address for Service: Spruson & Ferguson St Martins Tower Level 35 31 Market Street Sydney NSW 2000 (CCN 3710000177) Invention Title: Separator for the separation of magnetizable secondary resource particles from a suspension, its use and method The following statement is a full description of this invention, including the best method of performing it known to me/us: 5845c(5587764_1) 1 Separator for the separation of magnetizable secondary re source particles from a suspension, its use and method The present invention relates to a separator for the separa tion of magnetizable secondary resource particles from a sus pension containing further non-magnetizable particles, wherein the separator comprises a pipe-like or hollow cylindrical re actor, through which the suspension can flow, with a inlet ap erture for the suspension and an outlet aperture, wherein at the outer periphery of the reactor at least one magnetic field-generating device for the generation of a deflecting magnetic field which varies over time, in particular of a wan dering magnetic fields, is arranged, and with at least one pipeline assigned to the outlet aperture and branching off from the reactor to accommodate a secondary resource stream comprising predominantly the secondary resource particles, and a method for its operation and its use. Separators of the type mentioned in the introduction, which are also known as wandering field reactors, and their operat ing method, are for example well known from WO 2010/031613 Al. They are employed, in particular, in mining, for the separa tion of magnetizable particles, also known as magnetizable secondary resource particles, from suspensions. Magnetizable particles should here be taken also to mean such particles as are already magnetized. Magnetizable particles occur, inter alia, in ore processing, when rock containing iron ore is ground up. For the separation of the minerals or secondary re sources, for example magnetite (Fe 3 0 4 ) to be obtained from the residual rock, for example sand, the ground rock is mixed with water and or oil to form a suspension. In a wandering field reactor, the suspension is divided into a stream of residual matter containing largely non-magnetizable particles and at least one secondary resource stream containing predominantly magnetizable particles, through the use of magnetization and a 2 directed movement of the magnetizable particles in a magnetic field. In relation to the structure and detailed operating method of a magnetic field-generating device for the generation of a deflecting magnetic field which varies over time, in particular of A preferred embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings wherein: a wandering magnetic field, of a separator mentioned in the introduction, express reference is made to WO 2010 / 031613 Al. Efforts are made continuously to improve the separation efficiency of secondary resource particles from suspensions through the constant enhancement of separators of this kind. WO 2010/031613 Al already describes injection of the suspension into a reactor via oblique inlet nozzles, in which in contrast to the separator mentioned in the introduction, the magnetic field-generating device is arranged centrally in the reactor. By means of the centrifugal force arising, a separation of magnetizable and non-magnetizable particles, which have a different density, in the suspension is to be supported. Because, however, as a result of the use of discrete, oblique nozzles the respective stream of fluid from a nozzle is very rapidly braked again in the surrounding, predominantly axially flowing medium or suspension, only a very small-scale separation of heavy particles from the lighter ones takes place as a result of the slight centrifugal effect remaining. The use of slanting inlet nozzles scarcely improves the separation results. It is an object of the invention to improve upon the prior art at least to an extent or to provide an alternative thereto. A preferred embodiment aims to specify a separator and a method for its operation, with which an even more effective separation process for magnetizable and non magnetizable particles is enabled. There is disclosed herein a separator for the separation of magnetizable particles from a suspension containing further non-magnetizable particles, wherein the separator comprises a pipe-like or hollow cylindrical reactor, through which the suspension can flow, with an inlet aperture for the suspension and an outlet aperture, wherein at the outer periphery of the reactor at least one magnetic field-generating device for the generation of a deflecting magnetic field which varies over time, in particular of a wandering magnetic field, is arranged, and with at least one pipeline, which is assigned to the outlet aperture and branches off from the reactor, for the accommodation of a secondary resource stream comprising predominantly the secondary resource particles, in that the separator further comprises a feed arrangement upstream of the 3 inlet aperture in direction of flow, which is set up to impart a helical movement to the suspension before entry into the reactor. There is further disclosed herein a method for the separation of magnetizable secondary resource particles from a suspension containing further non-magnetizable particles, by means of an inventive separator, in that - the suspension is introduced into the feed device, the suspension is characterized by a helical movement, wherein the magnetizable secondary resource particles, which have a greater density than the non-magnetizable particles, move in the direction of the centrifugal force, - the suspension to which a helical movement is imparted is introduced into the reactor via the inlet aperture, wherein the suspension flows helically about the longitudinal axis of the reactor in the direction of the outlet aperture, and wherein by means of the at least one magnetic field-generating device, a deviation magnetic field which is variable over time, in particular a wandering magnetic field, is generated parallel to the longitudinal axis of the reactor and a secondary resource stream comprising predominantly the secondary resource particles is separated via the at least one pipeline branching off from the reactor. The separator and the method of a preferred embodiment have the advantage that the efficiency of separation of secondary resource particles from the 4 suspension is increased in comparison to the use of a conven tional magnetic field-generating device, generating a devia tion magnetic field which is variable over time, in particular a wandering magnetic field. The feed arrangement, which is ar ranged ahead of the inlet aperture of the reactor in the di rection of flow, imparts to the suspension as a whole a heli cal movement, so that the secondary resource particles, which have a greater density than the non-magnetizable particles be cause of the effects of the centrifugal force, increasingly accumulate in the area of the wall of the reactor. Because of the arrangement of the magnetic field-generating device on the outer periphery of the reactor, the magnetic attraction and the centrifugal force, which act on the magnetizable secondary resource particles, here act in the same direction, and thus markedly improve the separation results. The secondary re source particles are actively transported in the direction of the magnetic attraction and the separation effect of the mag netic field-generating device for the secondary resource par ticles from the suspension significantly improved. The feed arrangement is here in particular so dimensioned that the dwell time of the suspension therein is shorter or at most the same as the dwell time in the reactor. The length of the feed arrangement preferably lies in the range 5 to 20% of the length of the reactor, viewed in the direction of the reac tor's longitudinal axis. In particular, the dwell time of the suspension in the feed arrangement further lies in the range 5 to 20% of the dwell time in the reactor. It has proved advantageous if the feed arrangement comprises a feed pipe arranged coaxially to a longitudinal axis of the re actor, in which at least one helical flow guidance device is arranged. Depending on the embodiment of the spiral in terms of gradient, number and depth of turns, the throughflow quan tity of suspension through the feed device, the angle of entry and the speed of entry of the suspension into the reactor can be changed.
5 It has further proved advantageous if the feed arrangement comprises a hopper of circular cross-section arranged coaxi ally to a longitudinal axis of the reactor, which tapers in the direction of the inlet aperture to the inlet aperture di ameter, and with a suspension feed line, which feeds into this, tangentially to the circumference of the hopper in. Be cause of the tangential feeding-in of the suspension, a heli cal movement is imparted to the latter in the hopper, and it is transported helically in the direction of the reactor. Furthermore, a feed arrangement upstream of the reactor can be used, which instead of the hopper has a straight pipe, into which at least one oblique suspension feed line feeds tangen tially. Alternatively, it has proved advantageous if the feed arrange ment comprises a feed pipe arranged coaxially to a longitudi nal axis of the reactor, whose inner wall has helix generating, three-dimensional structures. Depending on the em bodiment of the structures in terms of number, arrangement, orientation and size, here too, the throughflow quantity of suspension through the feed device, the angle of entry and the speed of entry of the suspension into the reactor can be in fluenced. It has in particular proved advantageous if the three dimensional structures are arranged in the feed pipe in a mov able manner such that their spatial arrangement and or orien tation can be manually or automatically changed. In particular the arrangement and or orientation of the structures are set depending on the content level of secondary resource particles in the secondary resource stream and or in the suspension. In ter alia, the dwell time of the suspension in the feed ar rangement can be influenced.
6 In a preferred embodiment, the separator further comprises at least one analysis unit, by means of which a content level of secondary resource particles in the secondary resource stream and or in the suspension can be determined. If both the content level of secondary resource particles in the secondary resource stream and in the suspension are known, then the efficiency of separation of secondary resource particles from the suspension can also be determined therefrom in the at least one analysis unit. With an essentially constant content level of secondary resource particles in the suspension, it is possible to dispense with the determining of this content level. If the content level of secondary resource particles in the suspension fluctuates sharply, an online determining of this current content level of secondary resource particles in the suspension is optimal. This may take the form of an analysis unit which performs an optical analysis or ultrasound attenuation spectroscopy. An analysis based on magnetic resonance tomography, in which a susceptibility-weighted imaging takes place, is also possible. Furthermore, an X-ray fluorescence analysis which is known per se can be used to determine the actual content of secondary resources in particular of the actual secondary resource stream. The separator further preferably comprises a control unit, which is set up, depending on the content level of secondary resource particles determined in the secondary resource stream, and or in the suspension, to effect a change in the orientation and or arrangement of the movable three-dimensional structures in the feed arrangement. The use of a separator for the separation of magnetizable secondary resource particles from a suspension comprising particles of ore as components of residual matter is ideal. In particular by means of the inventive separator, a suspension is processed which comprises ground ore with a density of typically 2600 kg/m 3 . The ore preferably comprises secondary resource minerals containing copper, combined with magnetic material, for example magnetite, with a density of the secondary resource mineral compound of around 5000 kg/m 3 . However most other secondary resource minerals known from mining can be separated from the surrounding sterile rock with the inventive device and the inventive method, in particular therefore precious metals or their compounds. In particular, non-magnetic secondary resource components can be separated, in that these are selectively hydrophobized through the addition of suitable chemical auxiliaries. Known auxiliaries here are, for example, xanthates, as are widespread in flotation methods. The magnetizable secondary resource particles are likewise hydrophobized in a 7 corresponding manner, by means of which they are selectively congregated into greater agglomerations. The remaining particles of rock continue to float further freely in suspension. A preferred embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings wherein: FIG 1 shows in schematic form a separator according to the prior art in a part-longitudinal sectional view; FIG 2 shows in schematic form an inventive first separator in a part-longitudinal sectional view; FIG 3 shows in schematic form an inventive second separator in a part-longitudinal sectional view; FIG 4 shows in schematic form an inventive third separator in a part-longitudinal sectional view; FIG 5 shows in schematic form an inventive fourth separator in a part-longitudinal sectional view; and FIG 6 shows in schematic form an inventive fifth separator in a part-longitudinal sectional view with a displacement body. FIG 1 shows in schematic form an already known separator 1 for the separation of magnetizable secondary resource particles 8 from a suspension 100 containing further non-magnetizable par ticles. The known separator 1 comprises a pipe-like or hollow cylindrical reactor la, through which the suspension 100 can flow, with a inlet aperture lb for suspension 100 and an out let aperture lc, wherein on the outer periphery of the reactor la a magnetic field-generating device 3 for the generation of a deflecting magnetic field which varies over time, here a of a magnetic field, is arranged parallel to the longitudinal axis 4' of the reactor la. The separator 1 further comprises at least one pipeline 1d, which is assigned to the outlet ap erture 1c and branches off from the reactor la for the accom modation des separated secondary resource stream 12 comprising predominantly the secondary resource particles. The magnetic field-generating device 3 comprises a cylindrical sheet metal yoke 3a made of iron, which surrounds the reactor la. Between an optional displacement body 2 arranged in the reactor la, which reduces the volume of the reactor la for the accommodation of suspension 100, and the yoke 3a, a channel 4 is formed, which is separated by the reactor wall 5 of the re actor la from the yoke 3a surrounding it. The yoke 3a further has circumferential grooves 6 running towards the channel 4, in which are arranged equidistantly spaced solenoid coils 7 of a coil arrangement 8, whose windings are circumferential, that is enclose the channel 4. The displacement body 2 can here also be omitted, so that the internal space of the reactor la is free, and the complete cross-section of the reactor la can be flowed through by the suspension 100. Here, however, the diameter of the reactor la reduces to a maximum of around 50 to 100 mm, in order to be able to handle the whole suspension 100 flowing through it. In the case of the known separator 1 the suspension 100 with for example magnetizable and non-magnetizable particles intro duced into water as the carrier fluid is continuously directed into the channel 4, for example by the feed means 9 indicated. It is the purpose of the known separator 1 during continuous 9 throughflow of the suspension 100 through the channel 4 to di vide this into at least one part containing magnetic and at least one containing non-magnetic particles, which takes place at the end of the channel 4 by means of a separator element 10, in the present case a panel 11, wherein the arrows 12 identify the magnetic portion or the secondary resource stream respectively, and the arrows 13 the non-magnetic portion or waste stream respectively. The continuous operation of the known separator 1 is enabled by means of a certain energization of the coil arrangement 8, wherein to this end a control device 14, which is connected to the coil arrangement 8 via control lines 14', serves. To this end the in this case 36 coils 7, which for the sake of clarity are not all shown, are divided into three period groups, each with 12 coils, wherein one period group 15 is identified in FIG 1. The connections 20 between the coils 7 or within a group of coils 15 are shown in schematic form. By means of the appropriate energization of the individual coils 7 a traveling wave is generated in channel 4, as is evident from the detail WO 2010/031613 Al, which has gaps, that is areas without fields, which extend over the entire length of the channel 4. This means that seen in the direction of the longitudinal axis 4' of the channel 4 or of the reactor la, each cross-sectional area of the channel 4 is switched to be field-free at particu lar temporal intervals, so that magnetizable secondary re source particles, which may have accumulated on the reactor wall 5, are released therefrom and can be sluiced away with the suspension 100. This enables particularly low-maintenance operation of the separator 1. FIG 2 now shows in schematic form a first inventive separator l' in a part-longitudinal sectional view. The reactor la here contains no displacement body and the magnetic field generating device 3 and the control device 14 are represented in simplified form. The inventive first separator 1' comprises a feed arrangement 50 upstream of the inlet aperture lb in the 10 direction of flow, which is set up to impart a helical move ment to the suspension 100 before entry into the reactor la. The feed arrangement 50 comprises a feed pipe 51 arranged co axially to the longitudinal axis 4', in which is arranged a helical flow guidance device 52. The helical flow guidance de vice 52 comprises a rod 52a, which is arranged concentrically in the feed pipe 51, and further guide blades 52b, which ex tend between the rod 52a and the inner wall of the feed pipe 51. If the suspension 100 is introduced into the feed arrangement 50 (see arrow), this flows through the helical turns of the flow guidance device 52 in the direction of reactor la. The suspension 100 enters the reactor la through the inlet aper ture lb and because of the marked moves helically in the di rection of the outlet aperture lc and the pipeline ld. Here, the secondary resource particles, which have a greater density than the non-magnetizable particles or the remaining suspen sion, move in the direction of the centrifugal force. By means of the magnetic field-generating device 3 a deviation magnetic field, here a wandering magnetic field which is variable over time, is generated at the same time, which acts in the same direction as the centrifugal force. The secondary resource particles from the suspension 100 accumulate in the area of the reactor wall 5, and a secondary resource stream 12 com prising predominantly the secondary resource particles can be separated out via the pipeline 1b. The waste stream 13, on the other hand, predominantly contains the non-magnetizable parti cles. FIG 3 now shows in schematic form a second inventive separator 1'' in a part-longitudinal sectional view. The reactor la here likewise contains no displacement body, and the magnetic field-generating device 3 and the control device 14 are repre sented in simplified form. The inventive second separator 1'' comprises a feed arrangement 50' upstream of the inlet aper ture lb in direction of flow, which is set up to impart a 11 helical movement to the suspension 100 before entry into the reactor la. The feed arrangement 50' comprises a hopper 53 of circular cross-section arranged coaxially to the longitudinal axis 4', which tapers in the direction of the inlet aperture lb to an inlet aperture diameter of the inlet aperture lb. The feed arrangement 50' further comprises a suspension feed line 54, which feeds into it tangentially to the circumference of the hopper 53. If the suspension 100 is introduced into the feed arrangement 50' (see arrow), this flows through the hop per 55 helically in the direction of reactor la. The suspen sion 100 enters the reactor la through the inlet aperture lb, and because of the marked spiral moves helically in the direc tion of the outlet aperture 1c and the pipeline ld. Here, the secondary resource particles, which have a greater density than the non-magnetizable particles or the suspension, move in the direction of the centrifugal force. By means of the mag netic field-generating device 3 a deviation magnetic field which is variable over time, here a wandering magnetic field, is simultaneously generated parallel to the longitudinal axis 4' of the reactor la, which acts in the same direction as the centrifugal force. The secondary resource particles of the suspension 100 accumulate in the area of the reactor wall 5, and a secondary resource stream 12 comprising predominantly the secondary resource particles can be separated via the pipeline lb. The waste stream 13, on the other hand, predomi nantly contains the non-magnetizable particles. FIG 4 now shows in schematic from an inventive third separator 1''' in a part-longitudinal sectional view. Here too, the re actor la contains no displacement body, and the magnetic field-generating device 3 and control device 14 are repre sented in simplified form. The inventive third separator 1''' comprises a feed arrangement 50'' upstream of the inlet aper ture lb in direction of flow, which is set up to impart a helical movement to the suspension 100 before entry into the reactor la. The feed arrangement 50'' comprises a feed pipe 51' arranged coaxially to the longitudinal axis 4', whose in- 12 ner wall has helix-generating, three-dimensional structures 55. The three-dimensional structures 55 can be modified in their orientation and or arrangement in the feed pipe 51', in that they are mounted pivotably about a center of motion 56 (see double arrow). An additional shifting of the three-dimensional structures 55 in the feed pipe 51' is alternatively possible. For greater clarity, the orientation of the further three dimensional structures 55 in the feed pipe 51' arranged on the cutaway side of the wall and thus not visible in this repre sentation, which are likewise pivotable, are indicated as dot ted lines. Through the pivoting of the three-dimensional structures 55, the helical flow path which the suspension 100 introduced into the feed pipe 51' assumes therein, is changed. The third separator 1''' further comprises at least one analy sis unit 60, by means of which the content level of secondary resource particles in the secondary resource stream 12, and further optionally in the suspension 100, can be determined. The analysis unit 60, here shown in schematic form, is con nected to a control unit 70, which is set up, on the basis of the actual content levels of secondary resource particles de termined by means of the analysis unit 60, to effect a change of orientation and or arrangement of the three-dimensional structures 55 in the feed pipe 51'. To this end, the control unit 70 comprises at least one stepping motor, which is not shown here. It is thus possible, swiftly and without complica tion, to modify the arrangement and or orientation of the three-dimensional structures 55 in such a way that, in the case of a known content level of secondary resource particles in the suspension 100, an optimum separation efficiency of secondary resource particles from the suspension 100 is achieved. If the suspension 100 is introduced into the feed arrangement 50'' (see arrow), this flows helically in the direction of re- 13 actor la. The suspension 100 enters the reactor la through the inlet aperture lb and because of the marked spiral, moves helically in the direction of the outlet aperture lc and the pipeline ld. Here the secondary resource particles in the sus pension 100, which have a greater density than the non magnetizable particles, move in the direction of the centrifu gal force. By means of the magnetic field-generating device 3, a deviation magnetic field which is variable over time , here a wandering magnetic field, is simultaneously generated paral lel to the longitudinal axis 4' of the reactor la, which acts in the same direction as the centrifugal force. The secondary resource particles accumulate in the area of the inner wall of the reactor la, and the secondary resource stream 12 predomi nantly comprising the secondary resource particles can be separated via the pipeline lb. The waste stream 13, on the other hand, predominantly contains the non-magnetizable parti cles. FIG 5 now shows a fourth separator 111 in a part-longitudinal sectional view, which has a flow-calming feed arrangement 500. The same reference characters as in FIG 2 indicate the same elements. The feed arrangement 500 comprises a feed pipe 51' and is provided with flow guidance devices 52' in the form of channels which are here merely indicated, which run at an an gle which is set in a circumferential direction (azimuthal), and thus take a helical or spiral course. In the area of the inlet aperture lb of the fourth separator 111 not only is a flow-calmed, approximately laminar flow of the suspension 100 generated, but a hydrocyclonic eddy flow in the azimuthal di rection is produced. Heavy particles, in particular secondary resource particles, are thereby, in addition to the magnetic effect, preferably driven in the vicinity of the reactor wall of the reactor la with the aid of centrifugal forces, where they are particularly easily captured by the magnetic travel ing field, concentrated, further transported and separated. In the area of the inlet aperture lb, the suspension 100 flows, to which helical movement has been imparted, on a helical flow 14 path 80 through the reactor la. By means of this measure, the yield of secondary resources from the separation process is significantly increased compared with the prior art, as to in crease -the yield no stronger magnetic field need be set up, and no greater application of energy is thereby required. The waste stream 13 is drained in the center of the reactor la, with the secondary resource stream 12 being drained sepa rately, laterally at the edge of the reactor la. FIG 6 represents a further embodiment of a fifth separator 111' analogously to the part-longitudinal sectional view shown in FIG 5. The same reference characters as in FIG 5 identify the same elements. The fifth separator 111' in FIG 6 differs from that in FIG 5 in particular in that on the one hand a displacement body 2 is provided, which is arranged in the cen ter of the cylindrically embodied reactor la. Furthermore, ac cording to FIG 6, the fifth separator 111' has a flow-calming feed arrangement 500', which in turn comprises a feed pipe 51''' and flow guidance devices 52'' in the form of channels shown only in schematic form, by means of which the suspension 100, illustrated by the arrow in the upper area of the separa tor 111', is calmed and has a helical movement imparted to it. The feed device 500' in FIG 6 differs from that in FIG 5 only in that the channels in an upper area of the feed arrangement 500' run parallel to the longitudinal axis 4' of the reactor la. In a lower area of the feed arrangement 500', the azi muthal course of the channels then commences, which brings about the helical or spiral flow path 80 of the suspension 100 in the reactor la. The inventive separators shown merely represent exemplary em bodiments of the invention. A person skilled in the art is however in a position, without further effort, to make avail able further separators, without departing from the inventive idea. At least one displacement body can thus be arranged in the reactor of any inventive separator, which can additionally be so embodied that the helical movement of the suspension in 15 the reactor is even supported by the form of the displacement body. Furthermore, differently formed or arranged flow guid ance devices or three-dimensional structures, etc. can be pro vided, in order to impart a helical movement to the suspension in the feed arrangement. The drainage of the secondary re source stream or of the waste stream can vary from the ar rangement shown from the constructional perspective, etc. A combination of the feed arrangement comprising a hopper with a flow guidance device or three-dimensional structures, which can be built into the hopper, is also possible without further effort.
Claims (11)
1. Separator for the separation of magnetizable secondary resource particles from a suspension containing further non-magnetizable particles, wherein the separator comprises a pipe-like or hollow cylindrical reactor, through which the suspension can flow, with an inlet aperture for the suspension and an outlet aperture, wherein at the outer periphery of the reactor at least one magnetic field-generating device for the generation of a deflecting magnetic field which varies over time, in particular a wandering magnetic field, is arranged, and with at least one pipeline assigned to the outlet aperture and branching off from the reactor, for the accommodation of a secondary resource stream comprising predominantly the secondary resource particles, wherein the separator further comprises a feed arrangement upstream of the inlet aperture in direction of flow, which is set up to impart a helical movement to the suspension before entry into the reactor.
2. The separator as claimed in claim 1, wherein the feed arrangement comprises a feed pipe arranged coaxially to a longitudinal axis of the reactor, in which at least one helical flow guidance device is arranged.
3. The separator as claimed in claim 1, wherein the feed arrangement comprises a hopper of circular cross-section arrange coaxially to a longitudinal axis of the reactor, which tapers in the direction of the inlet aperture to the diameter of an inlet aperture, and with a suspension feed line which feeds into this, tangentially to the circumference of the hopper.
4. The separator as claimed in claim 1, wherein the feed arrangement comprises a feed pipe arranged coaxially to a longitudinal axis of the reactor, whose inner wall has helix-generating, three-dimensional structures.
5. The separator as claimed in claim 4, wherein the three-dimensional structures can be changed in their orientation and or arrangement in the feed pipe.
6. The separator as claimed in any one of the preceding claims, wherein this further comprises at least one analysis unit, by means of which a content level of secondary resource particles in the secondary resource stream and or of the suspension can be determined. 17
7. The separator as claimed in claim 6, wherein this further comprises a control unit, which is set up, depending on the content levels of secondary resource particles in the secondary resource stream and or in the suspension to effect a change of orientation and or arrangement of the three-dimensional structures.
8. Method for the separation of magnetizable secondary resource particles from a suspension containing further non-magnetizable particles, by means of a separator as claimed in any one of the preceding claims, wherein the suspension is introduced into the feed device, that the suspension is characterized by a helical movement, wherein the secondary resource particles, which have a greater density than the non-magnetizable particles, move in the direction of the centrifugal force, that the suspension to which a helical movement has been imparted is introduced into the reactor via the inlet aperture, wherein the suspension flows in the direction of the outlet aperture helically about the longitudinal axis of the reactor, and wherein by means of the at least one magnetic field-generating device a deviation magnetic field which is variable over time, in particular a wandering magnetic field, is generated parallel to the longitudinal axis of the reactor and a secondary resource stream comprising predominantly the secondary resource particles is separated via the at least one pipeline branching off from the reactor.
9. Use of a separator as claimed in any one of the claims I to 7 for the separation of magnetizable secondary resource particles from a suspension, comprising particles of ore as components of solid matter.
10. Separator for the separation of magnetizable secondary resource particles substantially as hereinbefore described with reference to the accompanying Figures 2 to 6.
11. Method for the separation of magnetizable secondary resource particles substantially as hereinbefore described with reference to the accompanying Figures 2 to 6. Siemens Aktiengesellschaft Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010040858 | 2010-09-16 | ||
| DE102010040858.1 | 2010-09-16 | ||
| EPEP10179322 | 2010-09-24 | ||
| EP10179322 | 2010-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2011224015A1 AU2011224015A1 (en) | 2012-04-05 |
| AU2011224015B2 true AU2011224015B2 (en) | 2014-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2011224015A Ceased AU2011224015B2 (en) | 2010-09-16 | 2011-09-13 | Separator for the separation of magnetizable secondary resource particles from a suspension, its use and method |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN202410827U (en) |
| AU (1) | AU2011224015B2 (en) |
| CL (1) | CL2011002195U1 (en) |
| DE (1) | DE202011104707U1 (en) |
| PE (1) | PE20120886Z (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041916B (en) * | 2013-01-23 | 2015-12-23 | 长沙矿冶研究院有限责任公司 | A kind of magnetic separator |
| CN103773682B (en) * | 2014-01-23 | 2015-09-30 | 张利峰 | Cell magnetic separation system, sorting unit and treatment facility |
| HUE061815T2 (en) | 2014-03-31 | 2023-08-28 | Basf Se | Magnetized material separating device |
| PE20170812A1 (en) | 2014-11-27 | 2017-07-04 | Basf Se | ENERGY INPUT DURING AGGLOMERATION FOR MAGNETIC SEPARATION |
| US10807100B2 (en) | 2014-11-27 | 2020-10-20 | Basf Se | Concentrate quality |
| EP3181230A1 (en) | 2015-12-17 | 2017-06-21 | Basf Se | Ultraflotation with magnetically responsive carrier particles |
| DE102016205243A1 (en) * | 2016-03-30 | 2017-10-05 | Thyssenkrupp Ag | Apparatus and method for processing a sample material |
| CN106216334A (en) * | 2016-08-10 | 2016-12-14 | 新奥科技发展有限公司 | Descaling method and scaler system |
| CN107401841B (en) * | 2017-07-21 | 2019-03-12 | 东北大学 | A kind of apparatus and method of magnetic control burning chemistry chains reaction |
| PL3687696T3 (en) | 2017-09-29 | 2023-06-26 | Basf Se | Concentrating graphite particles by agglomeration with hydrophobic magnetic particles |
| MX2021001648A (en) | 2018-08-13 | 2021-05-12 | Basf Se | Combination of carrier-magnetic-separation and a further separation for mineral processing. |
| CN110116057B (en) * | 2019-04-22 | 2021-08-27 | 太原理工大学 | Accelerating device for magnetic ore pulp in cyclone |
| CN112791503B (en) * | 2020-12-22 | 2022-02-15 | 泰和县宏川金属有限公司 | Water-powder separating device for producing cobalt powder |
| CA3208646A1 (en) | 2021-03-05 | 2022-09-09 | Oliver Kuhn | Magnetic separation of particles supported by specific surfactants |
| NL2030826B1 (en) * | 2022-02-04 | 2023-08-11 | Canopus Drilling Solutions Holding B V | Measurement of particle concentration in a stream. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1553174A2 (en) * | 1988-07-08 | 1990-03-30 | Криворожский горнорудный институт | Magnetic separator |
| US5224604A (en) * | 1990-04-11 | 1993-07-06 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet and dry particles |
| CA2737503A1 (en) * | 2008-09-18 | 2010-03-25 | Siemens Aktiengesellschaft | Separating device for separating a mixture of magnetizable and non-magnetizable particles present in a suspension which are conducted in a separating channel |
-
2011
- 2011-08-18 DE DE202011104707U patent/DE202011104707U1/en not_active Expired - Lifetime
- 2011-09-06 CL CL2011002195U patent/CL2011002195U1/en unknown
- 2011-09-13 AU AU2011224015A patent/AU2011224015B2/en not_active Ceased
- 2011-09-15 PE PE2011001654U patent/PE20120886Z/en active IP Right Grant
- 2011-09-16 CN CN2011203477832U patent/CN202410827U/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1553174A2 (en) * | 1988-07-08 | 1990-03-30 | Криворожский горнорудный институт | Magnetic separator |
| US5224604A (en) * | 1990-04-11 | 1993-07-06 | Hydro Processing & Mining Ltd. | Apparatus and method for separation of wet and dry particles |
| CA2737503A1 (en) * | 2008-09-18 | 2010-03-25 | Siemens Aktiengesellschaft | Separating device for separating a mixture of magnetizable and non-magnetizable particles present in a suspension which are conducted in a separating channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202410827U (en) | 2012-09-05 |
| CL2011002195U1 (en) | 2012-02-17 |
| AU2011224015A1 (en) | 2012-04-05 |
| PE20120886Z (en) | 2012-08-12 |
| DE202011104707U1 (en) | 2011-12-16 |
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Owner name: SIEMENS AKTIENGESELLSCHAFT Free format text: FORMER APPLICANT(S): BASF SE; SIEMENS AKTIENGESELLSCHAFT |
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| FGA | Letters patent sealed or granted (standard patent) | ||
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