WO2009041930A1 - Table dormante pour l'extraction de minerais lourds à partir d'une pulpe - Google Patents

Table dormante pour l'extraction de minerais lourds à partir d'une pulpe Download PDF

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Publication number
WO2009041930A1
WO2009041930A1 PCT/UA2008/000034 UA2008000034W WO2009041930A1 WO 2009041930 A1 WO2009041930 A1 WO 2009041930A1 UA 2008000034 W UA2008000034 W UA 2008000034W WO 2009041930 A1 WO2009041930 A1 WO 2009041930A1
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WO
WIPO (PCT)
Prior art keywords
gutter
pulp
ferromagnetic
carpet
strake
Prior art date
Application number
PCT/UA2008/000034
Other languages
English (en)
Inventor
Oleksii Eduardovich Chertilin
Original Assignee
Oleksii Eduardovich Chertilin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oleksii Eduardovich Chertilin filed Critical Oleksii Eduardovich Chertilin
Priority to CN2008801093364A priority Critical patent/CN101883637A/zh
Priority to AU2008305810A priority patent/AU2008305810A1/en
Publication of WO2009041930A1 publication Critical patent/WO2009041930A1/fr

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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
    • B03B5/68—Washing granular, powdered or lumpy materials; Wet separating by water impulse
    • B03B5/70—Washing granular, powdered or lumpy materials; Wet separating by water impulse on tables or strakes

Definitions

  • the invention relates to structures of strakes those are meant - to extraction from pulp stream of fine-dispersed heavy minerals such as gold, mercury and so likes by their sedimentation under the Earth gravitation field action, and to by-extraction, using magnetic separators, of present in the same pulp ferromagnetic particles of magnetite, ilmenite, tailings of ferrous shot, hard steel grains, ferrous dross etc.
  • strakes are most suitable for extraction of heavy minerals (as a target product) and ferromagnetic particles (as a by-product) from crushed dumps of some mining and/or metallurgical works and/or ashes of thermal power stations, which use hard fuel.
  • Gravity separation of high-density heavy mineral particles from pulp stream is well known. It provides washing-off of obtained sediment of a target product from disperse impurities having lesser density and removing the most part of said impurities by said stream into enrichment's tails (UJOXMH B.H., Jlo ⁇ a ⁇ nH A. T. «rpaBH ⁇ au>i ⁇ HHbie M ⁇ TOflbi o6orameHMfl», MocKBa: HEflPA, 1993; In English: Shokhin V.N., Lopatin A.G. «Gravitation methods of enrichment)), Moscow: NEDRA Publishing House, 1993).
  • the strake disclosed in RU 2 095 147 C1 provides purposeful local loosening of concentrate that promote knockout of said relatively high dense mineral particles from said concentrate and deceleration of "bed” compaction.
  • Said strake (see Fig.1 and respective parts of the patent specification) has: (a) a flow-through gutter at least a bottom of which is made from non-ferromagnetic material and which, when operates, is inclined to the horizontal line and connected by upper end to a pulp source and by lower end to a means for dumping of enrichment's tails;
  • a set of cinematically linked hard stencils of shallow filling each of which is connected to at least one drive for its reciprocal motion along the flow-through gutter's sides and said carpet and has: at least two longitudinal rows of lengthwise undulating riffles that are placed at one level above the catching carpet, and . transversal riffles that are placed in spaces between said rows of undulating riffles and between each extreme row of said riffles and the flow-through gutter's sides;
  • WO 2006/085831 from 17.08.2006 (or RU 2 262 385 C1) discloses a more perfect strake. It comprises of:
  • a flow-through gutter at least a bottom of which is made from non-ferromagnetic material and which, when operates, is inclined to the horizontal line and connected by upper end to a pulp source and by lower end to a means for dumping of enrichment's tails;
  • a set of cinematically linked hard stencils of shallow filling each of which is connected to at least one drive for its reciprocal motion along the flow-through gutter's sides and said carpet and has: at least two longitudinal rows of lengthwise undulating riffles, which are placed at one level above the catching carpet and composed of alternated in series to bulge direction half-sinusoidal parts of which are connected by flat insertions, at that height of said half- sinusoidal parts and height of said flat insertions are practically equal, and transversal riffles, which are formed as set of separate rotatable plates and placed in spaces between said rows of undulating riffles and between each extreme row of said undulating riffles and the flow-through gutter's sides;
  • At least one magnetic separator which has: a non-ferromagnetic box that is placed above at least one selected stencil and connected to reciprocal motion drive relative to this stencil, and a set of flat magnets, quantity and plane position of which correspond to the quantity and plane position of permanent magnetic elements under the catching carpet's cells and which are placed on pendants within said box and connected to drive of their synchronous swinging movement relative to the box bottom.
  • strake in comparison with earlier described analogue, allows to extract from a pulp stream even fine-dispersed and lamellar particles of heavy minerals if said stream contains ferromagnetic impurities.
  • the magnetic separator used in said strake provides momentary catch of ferromagnetic particles at each local pulp splash and return of theirs into pulp stream above said stencils' transversal riffles at each moment of local lowering pulp level. It is clear that aforesaid transfer of ferromagnetic particles into dump is admissible if their content in the pulp is comparable with content of the target product (for example, in case when placer gold must be extracted from natural sands containing insignificant impurities of ilmenite or magnetite).
  • the object of the invention is to create such strake, which could be substantially decrease risk of joint precipitation into concentrate both value heavy minerals' and ferromagnetic materials' particles and, hence, would be suitable for grubbing up of dumps of iron-ore mining and processing enterprises, ferrous metallurgy works and coal thermal power stations.
  • a strake for extraction of heavy minerals from pulp comprises of:
  • At least one main flow-through gutter made from non-ferromagnetic material and meant to passage of a pulp stream containing a mix of heavy minerals' particles and arbitrary impurities, which, when operates, is inclined to the horizontal line and connected by upper end to a pulp source and by lower end to a means for dumping of enrichment's tails;
  • At least one set of cinematically linked hard non-ferromagnetic stencils of shallow filling each of which has longitudinal and transversal riffles, is placed between the sides of said main flow-through gutter above said carpet and is connected to at least one drive for its reciprocal motion along the flow-through gutter's sides and said carpet;
  • At least one made from non-ferromagnetic material additional gutter which is inclined to the horizontal line too, is meant to discharging and separate withdrawal of ferromagnetic particles selected from the pulp stream in said main gutter, and, when it operates, is connected to a receptacle of ferromagnetic concentrate;
  • At least one based on at least two controllable electromagnets magnetic separator which is mounted above said gutters has possibility of step-wise rotation and vertical reciprocal motion, and is meant to ferromagnetic particles catching from the pulp stream in said main gutter and their transfer and discharging into said additional gutter.
  • the controllable electromagnets submerge in turn into the pulp stream flowing in said main gutter, collect up ferromagnetic particles and transfer these particles into said additional gutter for the purpose of further formation of ferromagnetic concentrate. Accordingly, precipitation of particles of value heavy minerals, e.g. gold, or environmental dangerous heavy minerals, e.g. mercury, from the depleted of ferromagnetic material pulp stream may be perfected substantially.
  • each switching-on of said electromagnets at their submergence into the pulp stream excites its vertical vibrations. These vibrations decelerate compaction of the "bed" within the carpet's cells and promote return into pulp of such natural or man-caused minerals' particles which no are target products of gravity enrichment.
  • First additional feature consists in that the strake is equipped with at least one additional means for excitation of vertical vibrations in the pulp stream above the carpet's cells. It is desirable if the pulp contains significant impurities of non-ferromagnetic particles of lead, copper, tungsten and other high-density metals or oxides or carbides of such metals.
  • Second additional feature consists in that the strake comprises of located alongside practically even edgewise one main flow-through gutter and one additional gutter, and such magnetic separator that has an axle placed above conjunction zone of said gutters and mounted on said axle a bracket of crosswise allocated said controllable electromagnets.
  • This simplest embodiment of the invention is suitable for extraction of heavy minerals and ferromagnetic materials from the most of crushed industrial wastes.
  • Third additional feature consists in that the strake comprises of one relatively broad main flow-through gutter and two relatively narrow additional gutters located alongside of said main gutter, and such magnetic separator that has an axle placed above middle of said main gutter and mounted on said axle a bracket of crosswise allocated said controllable electromagnets.
  • This embodiment of the invention is desirable if the pulp is saturated with ferromagnetic particles, sizes of which exceed sizes of separating heavy mineral.
  • Fourth additional feature consists in that the strake comprises of two relatively broad main flow-through gutters and one relatively narrow additional gutter located between said main gutters, and the has an axle placed above middle of said additional gutter and mounted on said axle a bracket of crosswise allocated said controllable electromagnets.
  • This embodiment of the invention is desirable if the pulp is saturated with ferromagnetic particles, sizes of which are near to the sizes of separating heavy mineral.
  • Fig.1 shows a simplest strake having two gutters for precipitation of heavy minerals from a pulp stream containing ferromagnetic particles (view from above);
  • Fig.2 shows an arrangement of a magnetic separator relative to the gutters of the strake shown in Fig.1;
  • Fig.3 shows an example of a strake having a central main gutter and two additional side gutters (view from above);
  • Fig.4 shows an example of a strake having two side main gutters and one central additional gutter (view from above);
  • the proposed strake has: at least one non-ferromagnetic main flow-through gutter 1 which, when operates, is inclined to the horizontal line and connected by upper end to a not shown especially pulp source and by lower end to a not shown especially means for dumping of enrichment's tails; a cellular catching carpet 2 which is placed on the main flow-through gutter 1 bottom (as it is shown manifestly in Fig.2 and conditionally in "windows” in Figs 1 , 3 and 4) and meant to accumulation of heavy mineral's concentrate in the cells; at least one set of cinematically linked hard non-ferromagnetic stencils 3 of shallow filling, which is placed between the sides of said main flow-through gutter 1 above said carpet 2 and connected to at least one drive for its reciprocal motion along the flow-through gutter's 1 sides and said carpet 2; the each stencil 3 comprises of not shown especially longitudinal (in particular, straight or undulating in view from above) and flat trans
  • a drive of reciprocal motion of stencils 3 is shown conventionally by pairs of oppositely directed straight arrows in Figs 1 , 3 and 4.
  • the magnetic separator (see Figs 1-4) has an axle 6 and mounted on this axle a bracket 7 of crosswise allocated said controllable electromagnets 5.
  • a drive of step-wise rotation of the bracket 7 around the axle 6 is shown conditionally in Figs 1 , 3 and 4 by arc-like arrows.
  • a drive of vertical reciprocal motion of the bracket 7 along the axle 6 (or together with said axle 6) is shown conditionally in Fig.2 by upper pairs of oppositely directed straight arrows. It is clear that above-mentioned drives may be usually connected to a not shown especially automatic control system of the strake.
  • This system is required for switching on of the electromagnets 5 for a time of their submergence in the pulp stream flowing through the main gutter 1 and transfer of ferromagnetic particles to the additional gutter 4 and for switching off of the electromagnets 5 for a time of their stay above the additional gutter 4.
  • the simplest strake (see Fig.1) has located alongside practically even edgewise one main flow-through gutter 1 and one additional gutter 4, and magnetic separator's axle 6 is placed above conjunction zone of said gutters 1 and 4.
  • One of more complicated strake has one relatively broad main flow-through gutter 1 and two relatively narrow additional gutters 4 located alongside of said main gutter 1 , and magnetic separator's axle 6 is placed above middle of said main gutter 1.
  • Another more complicated strake has two relatively broad main flow-through gutters 1 and one relatively narrow additional gutter 4 located between said main gutters 1 , and magnetic separator's axle 6 is placed above middle of said additional gutter 4.
  • the strake can be equipped with at least one suitable additional means for excitation of vertical vibrations in the pulp stream above the 1 carpet's 2 cells (e.g., with usual mechanical or electromechanical pushers mounted under the main flow-through gutters' 1 bottom).
  • This means is conventionally shown in Fig.2 by lower pairs of oppositely directed straight arrows.
  • the described strake operates as follows.
  • any main flow-through gutter (or gutters) 1 and additional gutter (or gutters) 4 in operative position in which the bottom of any said gutter must be inclined to horizontal line at angle selected preferably in the range from 6° to 11°.
  • any main flow-through gutter 1 must be connected up by its upper end to a selected pulp source and by its lower end to a selected means for dumping of enrichment's tails, the catching carpet 2 must be laid on the bottom of any flow-through gutter 1 and the stencils 3 must be placed above said carpet 2 and connected to the drive of reciprocal motion.
  • Said group of the electromagnets 5 would be submerged in the pulp stream until formation of compact "bunches" of ferromagnetic particles.
  • Ad notam the period, which is necessary for loading of submerged electromagnets 5 by sufficiently large compact "bunches” of ferromagnetic particles, may be stated experimentally by short-time test action of the strake using pulp of defined initial composition.
  • the bracket 7 In steady-state regime, the bracket 7 periodically rises above the sides of respective gutters 1 and 4, turns on 90° around said axle 6 and anew goes down at lowering of loaded with said "bunches” electromagnets 5 into respective additional gutter 4 and at submergence of next group of unloaded electromagnets 5 into the pulp stream. At the end of said lowering the loaded electromagnets 5 must be switched off but the unloaded electromagnets 5 must be switched on.
  • Heaps of ferromagnetic particles on the bottom of any said additional gutter 4 must be washed or scraped off at least periodically into removable receptacles.
  • additional means for excitation of vertical vibrations in the pulp stream above the carpet's 2 cells may be operated at the time of each submergence of electromagnets 5 in the pulp stream and/or at the time of each rotation step of the bracket 7.
  • any embodiment of the invention may be easy made from available materials and component by present machine works and used for effective - grubbing up of dump places of many iron-ore mining and processing enterprise, metallurgical works and ashes of thermal power stations.. separate extraction of gold (or other value or environmentally dangerous high-density substances) and various secondary ferromagnetic raw from said dump, and preparation of environmentally inert residues and clean territories for land reclamation.

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  • Manufacture And Refinement Of Metals (AREA)
  • Paper (AREA)

Abstract

L'invention porte sur une table dormante pour l'extraction de minerais lourds à partir d'une pulpe. Cette table comporte : au moins une gouttière de circulation non ferromagnétique principale destinée au passage d'un courant de pulpe contenant un mélange de particules de minéraux lourds et d'impuretés, qui est inclinée par rapport à la ligne horizontale et reliée par une extrémité supérieure à la source de pulpe et par une extrémité inférieure à un moyen pour la vidange des rejets ; un tapis de capture cellulaire placé sur le fond de la gouttière principale ; au moins un ensemble de pochoirs déplacés en va-et-vient, non ferromagnétiques, durs, reliés cinématiquement, de remplissage peu profond, chacun présentant des riffles longitudinaux et transversaux et étant placé entre les côtés de la gouttière de circulation principale, au-dessus dudit tapis ; et au moins une gouttière non ferromagnétique supplémentaire, également inclinée par rapport à la ligne horizontale, qui est destinée à la décharge et au retrait séparé de particules ferromagnétiques choisies parmi le courant de pulpe et qui est reliée à un réceptacle de concentré ferromagnétique.
PCT/UA2008/000034 2007-09-24 2008-06-13 Table dormante pour l'extraction de minerais lourds à partir d'une pulpe WO2009041930A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801093364A CN101883637A (zh) 2007-09-24 2008-06-13 用于从矿浆提取重矿物的洗矿槽
AU2008305810A AU2008305810A1 (en) 2007-09-24 2008-06-13 Strake for extraction of heavy minerals from pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA200710567 2007-09-24
UAA200710567A UA91357C2 (ru) 2007-09-24 2007-09-24 Шлюз для извлечения тяжелых минералов из потока пульпы

Publications (1)

Publication Number Publication Date
WO2009041930A1 true WO2009041930A1 (fr) 2009-04-02

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ID=39810216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/UA2008/000034 WO2009041930A1 (fr) 2007-09-24 2008-06-13 Table dormante pour l'extraction de minerais lourds à partir d'une pulpe

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Country Link
CN (1) CN101883637A (fr)
AU (1) AU2008305810A1 (fr)
RU (1) RU2396126C1 (fr)
UA (1) UA91357C2 (fr)
WO (1) WO2009041930A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106622631A (zh) * 2016-11-03 2017-05-10 深圳清华大学研究院 一种高泥氧化锌矿脱泥装置及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115254210A (zh) 2016-11-14 2022-11-01 浩康生物系统公司 用于分选目标颗粒的方法和装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006085831A1 (fr) * 2005-02-11 2006-08-17 Viktor Trofimovich Kardash Virure destinee a la precipitation de concentres de mineraux lourds a partir de pulpe et tapis de capture correspondant

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006085831A1 (fr) * 2005-02-11 2006-08-17 Viktor Trofimovich Kardash Virure destinee a la precipitation de concentres de mineraux lourds a partir de pulpe et tapis de capture correspondant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106622631A (zh) * 2016-11-03 2017-05-10 深圳清华大学研究院 一种高泥氧化锌矿脱泥装置及方法

Also Published As

Publication number Publication date
AU2008305810A1 (en) 2009-04-02
RU2396126C1 (ru) 2010-08-10
CN101883637A (zh) 2010-11-10
UA91357C2 (ru) 2010-07-26

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