CN104689900B - Comprehensive field of force multithread state gravity concentrator - Google Patents

Comprehensive field of force multithread state gravity concentrator Download PDF

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Publication number
CN104689900B
CN104689900B CN201510077184.6A CN201510077184A CN104689900B CN 104689900 B CN104689900 B CN 104689900B CN 201510077184 A CN201510077184 A CN 201510077184A CN 104689900 B CN104689900 B CN 104689900B
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force
field
gravity concentrator
comprehensive
choked flow
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CN104689900A (en
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王毓华
卢东方
胡岳华
姜涛
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Central South University
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Central South University
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Abstract

A kind of multithread state gravity concentrator in the synthesis field of force of the invention, including gravity concentrator body, comprehensive field of force sedimentation separation area, drive device, rotating device and palsating equipment, rotating device and palsating equipment are arranged on the bottom of gravity concentrator body, and the bottom one turbulent fluctuation flow field of formation of gravity concentrator body and the coefficient comprehensive field of force sedimentation separation area of pulsed vibration field, the rotation of rotating device is set to be driven by drive device;The top center region of gravity concentrator body is provided with material inlet, and material inlet is connected by center feed pipe with the synthesis field of force sedimentation separation area of bottom;The bottom for integrating field of force sedimentation separation area is provided with underflow opening, and the top in comprehensive field of force sedimentation separation area is communicated at the downflow weir of the gravity concentrator bodies top by the rising circulation road of a circular center feed pipe;Rising in circulation road an inclined plate sedimentation area can be formed by uniformly laying choked flow board component.The gravity concentrator of the present invention has the advantages that sharpness of separation is high, stable and reliable in work, low energy consumption environment protection.

Description

Comprehensive field of force multithread state gravity concentrator
Technical field
The present invention relates to a kind of sorting of mineral, classifying equipoment, more particularly to a kind of sorting of high efficiency gravity, classification and pre- richness Collect equipment.
Background technology
At present, cyclone, hydraulic classiciation case, spiral chute and shaking table are that material is classified, the main gravity treatment that sorts is set Standby, in the industrial production, there is problems with this kind of gravitational separation equipment because the sorting field of force is single and the limitation of design principle:
1. cyclone realizes classification, it is necessary to which high-pressure delivery ore pulp, when ore pulp thickness grain is uneven, holds mainly by centrifugal force The blocking of underflow opening is easily caused, influences classification efficiency;
2. hydraulic classiciation case is the classification that mineral are realized in static infall process, due to folder of the mineral in infall process Factor, the classification efficiencies such as miscellaneous, settling area limitation are often not satisfactory;
3. spiral chute has the advantages of big treating capacity, Non-energy-consumption when sorting coarse fraction mineral, but to fine particle stage material Separating effect it is poor;
4. shaking table is based on film concentration principle, of reciprocating vibration, vertical and horizontal current by bed surface are used cooperatively, real Existing fine-grained minerals efficiently separate, but it has the shortcomings that treating capacity is small, fluctuation of service.
In a word, due to single and structure the limitation in the said equipment fluid field of force, gravity separation, effectiveness of classification are caused The problems such as difference, fluctuation of service, high energy consumption, it is often difficult to the requirement for meeting sorting mineral.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to mention in background above technology and defect, there is provided one Kind high, stable and reliable in work, low energy consumption environment protection the synthesis field of force multithread state gravity concentrator of sharpness of separation.
In order to solve the above technical problems, technical scheme proposed by the present invention is a kind of comprehensive field of force multithread state gravity concentrator, institute Stating comprehensive field of force multithread state gravity concentrator includes gravity concentrator body, comprehensive field of force sedimentation separation area, drive device, rotating device and arteries and veins Dynamic device, the rotating device and palsating equipment are arranged on the bottom of gravity concentrator body, and form the bottom of gravity concentrator body One turbulent fluctuation flow field and the coefficient comprehensive field of force sedimentation separation area of pulsed vibration field, the rotation of the rotating device is by drive device Driving;The top center region of the gravity concentrator body is provided with material inlet, and material inlet passes through center feed pipe and the synthesis of bottom Field of force sedimentation separation area connects;The bottom for integrating field of force sedimentation separation area is provided with underflow opening, integrates the upper of field of force sedimentation separation area The rising circulation road that portion surround center feed pipe by one is communicated at the downflow weir of the gravity concentrator bodies top.
In above-mentioned synthesis field of force multithread state gravity concentrator, preferably:The gravity concentrator body is mainly by the cylinder structure on top Part and the vertebral body component of bottom composition, and the comprehensive field of force sedimentation separation area is mainly disposed to vertebral body component and surrounded down In portion region, the rising circulation road is then mainly disposed in the upper area that column member surrounds.
In above-mentioned synthesis field of force multithread state gravity concentrator, preferably:The drive device is located at the top of gravity concentrator body Top, and drive device passes through a central shaft through the center feed pipe and the rotation in the comprehensive field of force sedimentation separation area Rotary device is connected.The rotating device can be the impeller of two leaves, three leaves, four leaves or other shapes.
In above-mentioned synthesis field of force multithread state gravity concentrator, preferably:The main body mechanism of the palsating equipment is located at resultant force The outside in field sedimentation separation area, and palsating equipment makes to integrate the fluid in the sedimentation separation area of the field of force by the reciprocating motion of its pull bar Fluctuated up and down with sine wave.
In above-mentioned synthesis field of force multithread state gravity concentrator, preferably:The rotating speed of the rotating device is no more than 500r/min, The jig frequency scope of the palsating equipment is no more than 500 times/min, and stroke range is no more than 30cm.
The above-mentioned technical proposal of the present invention is based primarily upon following principle:The present invention is by controlling the bottom in more fluidised form gravity concentrators Stream and overflow ratio, make mineral form the fluid bed of specific density in infall process;Pulsation in comprehensive field of force sedimentation separation area Device promotes the different mineral of density to isolate, be layered in fluid bed by moving back and forth;In comprehensive field of force sedimentation separation area Rotating device then reduces mineral being mingled between different densities mineral in sedimentation, delaminating process.By the way that pulsation isolation is sorted Combined with the reinforcing dispersed phase in turbulent flow, realize Gravity separation and the classification of mineral.
It is excellent in above-mentioned synthesis field of force multithread state gravity concentrator as the further improvement to the invention described above technical scheme Choosing:Choked flow board component is uniformly laid with the rising circulation road to form an inclined plate sedimentation area, the choked flow board component Bottom is communicated to comprehensive field of force sedimentation separation area, and the top of the choked flow board component is communicated at downflow weir.It is oblique by setting one Plate decanting zone, not only increases the settling area of equipment, and helps to shorten the sedimentation time of mineral, in conjunction with being arranged on down The palsating equipment outside rotating device and back taper component in portion's back taper component, the scattered of ore pulp is not only contributed to, avoids sorting Being mingled with journey, and it is favorably improved the separative efficiency of mineral.
In above-mentioned synthesis field of force multithread state gravity concentrator, more preferably:The choked flow board component is mainly by vertically Multiple choked flow flaggies of arrangement are formed by connecting, and are interconnected between each choked flow flaggy and form the rising of a S-shaped or fold-line-shaped Stream sedimentation passage.
In above-mentioned synthesis field of force multithread state gravity concentrator, more preferably:Each layer of choked flow flaggy is by around the center Multiple choked flow Slab elements composition of feed pipe, and it is located at central axis of each layer of the multiple choked flow Slab elements along center feed pipe Be centrosymmetric arrangement.In above-mentioned synthesis field of force multithread state gravity concentrator, more preferably:Each choked flow Slab element is by polylith phase Mutual spoiler that is parallel and being in tilted layout assembles;And in two choked flow Slab elements of neighbouring docking spoiler inclination side Symmetrically passage is settled to holding to form the upper up-flow of " people " font;The angle angle of " people " the font upper up-flow sedimentation passage Degree control is at 50 °~80 °.
In above-mentioned synthesis field of force multithread state gravity concentrator, more preferably:In each choked flow Slab element adjacent two spoiler it Between vertical range be 5~50mm, the spoiler being respectively arranged in parallel is to be assembled in a spoiler list by insertion slot type connected mode In the mounting seat of member.The material of spoiler can be the low friction coefficient materials such as polytetrafluoroethylene (PTFE), polyacetals.
In technical scheme after the further improvement of the invention described above, by setting choked flow board component to increase settling area, contracting Short settling height, reduce the probability that the big density mineral of fine fraction flow out from downflow weir.The present invention is further by the pulsation of fluid bed Strengthen high-efficiency sedimentation separation in scattered and laminar flow in isolation sorting, turbulent flow to be combined, realize mineral (especially Fine fraction of ore Thing) efficient Gravity separation and classification.
Compared with prior art, the advantage of the invention is that:In the synthesis field of force multithread state gravity concentrator of the present invention, in order to strong Change the scattered of ore pulp, reduce mineral grain being mingled with infall process, be provided with the bottom of gravity concentrator body by motor The rotating device of driving;In order to form stable fluid bed in a device, and improve mineral and layering efficiency isolated in fluid bed, Palsating equipment is provided with the bottom of gravity concentrator body;It is staggered in addition, further preferably being arranged on the top of gravity concentrator body Choked flow board component to form inclined plate sedimentation area;Such structure setting can produce turbulent flow, laminar flow and pulsatile flow field, can realize Material efficiently separating and being classified, for ore dressing field provides a kind of high concentration ratio, beneficiating efficiency height, sharpness of separation is high, works Reliable and stable, low energy consumption environment protection synthesis field of force multithread state gravity concentrator, is particularly suitable in the small thing of fine fraction and density variation The fields such as material separation classification, desliming and preenrichment carry out popularization and application.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis These accompanying drawings obtain other accompanying drawings.
Fig. 1 is that (main view direction is along axis for the structural representation of comprehensive field of force multithread state gravity concentrator in the embodiment of the present invention Split).
Fig. 2 is the sectional view (omission palsating equipment) at A-A in Fig. 1.
Fig. 3 is the front view of single choked flow Slab element in comprehensive field of force multithread state gravity concentrator in the embodiment of the present invention.
Fig. 4 is the side view of single choked flow Slab element in comprehensive field of force multithread state gravity concentrator in the embodiment of the present invention.
Fig. 5 is the top view of single choked flow Slab element in comprehensive field of force multithread state gravity concentrator in the embodiment of the present invention.
Fig. 6 is that fluid bed pulsating wave curve map in the sedimentation separation area of the field of force is integrated in the embodiment of the present invention.
Fig. 7 is the partial enlarged drawing at B in Fig. 3.
Marginal data:
1- drive devices;2- material inlets;3- downflow weirs;4- choked flow board components;5- rotating devices;6- underflow openings;7- is pulsed Device;8- central shafts;9- gravity concentrator bodies;10- integrates field of force sedimentation separation area;11- centers feed pipe;12- choked flow Slab elements; 13- spoilers;14- swash plate cuttings.
Embodiment
For the ease of understanding the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting among other Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention Protection domain.
Embodiment:
A kind of synthesis field of force multithread state gravity concentrator of the present invention as shown in Figure 1 and Figure 2, including gravity concentrator body 9, driving dress 1, rotating device 5 and palsating equipment 7 are put, gravity concentrator body 9 is mainly by the column member (the present embodiment is four-prism) on top Formed with the vertebral body component of bottom, rotating device 5 and palsating equipment 7 are arranged on the bottom of gravity concentrator body 9, and make gravity concentrator One turbulent fluctuation flow field and the coefficient comprehensive field of force sedimentation separation area 10 of pulsed vibration field, and the comprehensive field of force are formed at the bottom of body 9 Sedimentation separation area 10 is arranged in the region that bottom vertebral body component surrounds.The top center region of gravity concentrator body 9 is provided with and given Material mouth 2, material inlet 2 are connected with the synthesis field of force sedimentation separation area 10 of bottom by center feed pipe 11, are fed by the center The ore pulp that material inlet 2 is sent into can be fed directly to integrate in field of force sedimentation separation area 10 by pipe 11;Comprehensive field of force sedimentation separation area 10 bottom is provided with underflow opening 6, and the top in comprehensive field of force sedimentation separation area 10 passes through a upper up-flow for surrounding center feed pipe 11 Passage is communicated at the downflow weir 3 of the top perimeter of gravity concentrator body 9;Rise circulation road and form an inclined plate sedimentation area, and be arranged on In the upper area that column member surrounds.
As shown in figure 1, in the synthesis field of force multithread state gravity concentrator of the present embodiment, drive device 1 is a motor, and it is located at The over top of gravity concentrator body 9, and drive device 1 runs through the central shaft 8 of center feed pipe 11 by one and the comprehensive field of force sinks Rotating device 5 in drop Disengagement zone 10 is connected.The rotation of rotating device 5 is driven by drive device 1, and turn of rotating device 5 Speed is no more than 500r/min.
As shown in figure 1, in the synthesis field of force multithread state gravity concentrator of the present embodiment, the main body mechanism of palsating equipment 7 is located at comprehensive The outside in composite force field sedimentation separation area 10, and be connected with the vertebral body component of the bottom of gravity concentrator body 9, and palsating equipment 7 passes through The fluid that the reciprocating motion of its pull bar makes to integrate in field of force sedimentation separation area 10 is fluctuated (referring to Fig. 6) up and down with sine wave; The jig frequency scope of palsating equipment 7 is no more than 500 times/min, and stroke range is no more than 30cm.
As shown in Fig. 2~Fig. 5, in the synthesis field of force multithread state gravity concentrator of the present embodiment, rise in circulation road and uniformly lay There is choked flow board component 4 to form an inclined plate sedimentation area, the bottom of choked flow board component 4 is communicated to comprehensive field of force sedimentation separation area 10, The top of choked flow board component 4 is communicated at downflow weir 3 (referring to Fig. 1 and Fig. 2).Choked flow board component 4 in the present embodiment mainly by The multiple choked flow flaggies being arranged in a vertical direction are formed by connecting, and are interconnected between each choked flow flaggy and form a fold-line-shaped Upper up-flow settles passage.As shown in Fig. 2 each layer of choked flow flaggy is by four choked flow Slab elements 12 around center feed pipe 11 Composition, and be centrosymmetric arrangement positioned at the central axis of each layer of four choked flow Slab elements 12 along center feed pipe 11;On Up-flow enters the outlet of downflow weir 3 by choked flow Slab element 12 (referring to Fig. 2).
As shown in Fig. 3~Fig. 5, each choked flow Slab element 12 is 13 groups of the spoiler for being parallel to each other and being in tilted layout by polylith Dress forms;And the incline direction of spoiler 13 keeps symmetrical (i.e. levels in two choked flow Slab elements 12 of neighbouring docking Spoiler is interlocked with certain angle of inclination to be docked) settle passage to form the upper up-flow of " people " font (referring to Fig. 1);" people " font The angle angle of upper up-flow sedimentation passage is controlled at 50 °~80 °.In each choked flow Slab element 12 between adjacent two spoiler 13 Vertical range be 5~50mm, the spoiler 13 being respectively arranged in parallel is to be assembled in a spoiler list by insertion slot type connected mode In the mounting seat of member 12, mounting seat is provided with grafting of the swash plate cutting 14 for spoiler 13 of multiple parallel arrangements (referring to Fig. 7).
The course of work of the above-mentioned synthesis field of force multithread state gravity concentrator of the present embodiment is as follows:Start drive device 1, make rotation Device 5 is rotated with certain speed, and turbulent fluctuation flow field is produced in comprehensive field of force sedimentation separation area 10;Ore pulp is along material inlet 2 and center The synthesis field of force sedimentation separation area 10 that feed pipe 11 enters in reverse taper component through the passage in choked flow board component 4, was settled Spontaneously form fluidisation mineral deposit in journey, fluidisation mineral deposit moved in the reciprocatory movement of palsating equipment 7 with sine wave (referring to Fig. 6), to realize the isolation of mineral in mineral deposit, layering, the big mineral of density move downwardly to underflow opening through the sedimentation of fluidisation mineral deposit 6, the concussion in infall process due to the peptizaiton by rotating device 5 and palsating equipment 7 acts on, and can greatly reduce to it The carrying of his mineral and it is mingled with;The fold-line-shaped upper up-flow that the small mineral of density are then formed with upper up-flow through choked flow board component 4 is sunk Passage is dropped, is moved at downflow weir 3, the big mineral of the fine fraction density partly moved with upper up-flow are by upper up-flow sedimentation passage During region, due to the increase of settling area and the shortening of settling height, spoiler 13 is settled down to before downflow weir 3 is moved to On, so as to realize the sorting of different densities mineral.
As seen from the above-described embodiment, synthesis field of force multithread state gravity concentrator of the invention is for the sorting good to mineral creation Condition, the efficiency of separation of mineral is improved, reduce mineral being mingled with, carrying in infall process, strengthen fine-graded recovery, equipment Different fluid state is provided in different parts, different zones, material disperses in the turbulent fluctuation flow field provided by rotating device 5, Sedimentation, isolate, be layered in the pulsed vibration field provided by palsating equipment 7, it is real in the Laminar Flow provided by choked flow board component 4 The recovery of existing fine fraction, big density granule, various flow fields, the mutual supplement with each other's advantages of field of force grading effect are realized, can be widely applied to ore deposit Dehydration, desliming, in advance classification, the operation such as throwing tail and mineral purification of thing.

Claims (9)

  1. A kind of 1. comprehensive field of force multithread state gravity concentrator, it is characterised in that:The comprehensive field of force multithread state gravity concentrator includes gravity concentrator Body, comprehensive field of force sedimentation separation area, drive device, rotating device and palsating equipment, the rotating device and palsating equipment are set Put in the bottom of gravity concentrator body, and make the bottom one turbulent fluctuation flow field of formation of gravity concentrator body and pulsed vibration field coefficient comprehensive Composite force field sedimentation separation area, the rotation of the rotating device are driven by drive device;The top center area of the gravity concentrator body Domain is provided with material inlet, and material inlet is connected by center feed pipe with the synthesis field of force sedimentation separation area of bottom;Comprehensive field of force sedimentation The bottom of Disengagement zone is provided with underflow opening, and the top in comprehensive field of force sedimentation separation area passes through a rising circulation for surrounding center feed pipe Road is communicated at the downflow weir of the gravity concentrator bodies top;
    The main body mechanism of the palsating equipment is located at the outside in comprehensive field of force sedimentation separation area, and palsating equipment passes through its pull bar The fluid that moving back and forth makes to integrate in the sedimentation separation area of the field of force is fluctuated up and down with sine wave.
  2. 2. comprehensive field of force multithread state gravity concentrator according to claim 1, it is characterised in that:The gravity concentrator body mainly by The column member on top and the reverse taper component composition of bottom, and the comprehensive field of force sedimentation separation area is mainly disposed to reverse taper In the lower area that component surrounds, the rising circulation road is then mainly disposed in the upper area that column member surrounds.
  3. 3. comprehensive field of force multithread state gravity concentrator according to claim 1, it is characterised in that:The drive device is located at gravity treatment The over top of machine body, and drive device passes through a central shaft through the center feed pipe and the comprehensive field of force sedimentation Rotating device in Disengagement zone is connected.
  4. 4. comprehensive field of force multithread state gravity concentrator according to claim 1, it is characterised in that:The rotating speed of the rotating device is not More than 500r/min, the jig frequency scope of the palsating equipment is no more than 500 times/min, and stroke range is no more than 30cm.
  5. 5. according to comprehensive field of force multithread state gravity concentrator according to any one of claims 1 to 4, it is characterised in that:The rising Choked flow board component is uniformly laid with circulation road to form an inclined plate sedimentation area, the bottom of the choked flow board component is communicated to synthesis Field of force sedimentation separation area, the top of the choked flow board component are communicated at downflow weir.
  6. 6. comprehensive field of force multithread state gravity concentrator according to claim 5, it is characterised in that:The choked flow board component mainly by The multiple choked flow flaggies being arranged in a vertical direction are formed by connecting, and are interconnected between each choked flow flaggy and form a S-shaped or folding Linear upper up-flow sedimentation passage.
  7. 7. comprehensive field of force multithread state gravity concentrator according to claim 6, it is characterised in that:Each layer of choked flow flaggy is by ring Multiple choked flow Slab elements around the center feed pipe form, and positioned at each layer of multiple choked flow Slab elements along center feed pipe Central axis be centrosymmetric arrangement.
  8. 8. comprehensive field of force multithread state gravity concentrator according to claim 7, it is characterised in that:Each choked flow Slab element is by more The spoiler that block is parallel to each other and is in tilted layout assembles;And spoiler inclines in two choked flow Slab elements of neighbouring docking Tilted direction keeps symmetrically settling passage to form the upper up-flow of " people " font;The angle of " people " the font upper up-flow sedimentation passage Locate angle control at 50 °~80 °.
  9. 9. comprehensive field of force multithread state gravity concentrator according to claim 8, it is characterised in that:It is adjacent in each choked flow Slab element Vertical range between two spoilers is 5~50 mm, and the spoiler being respectively arranged in parallel is assembled in by insertion slot type connected mode In the mounting seat of one choked flow Slab element.
CN201510077184.6A 2015-02-13 2015-02-13 Comprehensive field of force multithread state gravity concentrator Active CN104689900B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105880005A (en) * 2016-05-10 2016-08-24 中南大学 Mineral sorting device
CN106179775B (en) * 2016-07-18 2018-06-01 中国矿业大学 A kind of fine inclined plate floats sorting machine again
CN112138853B (en) * 2020-09-08 2021-06-04 东北大学 Fine particle hydraulic classification device and method based on vortex oblique flow

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US4038178A (en) * 1974-11-19 1977-07-26 Risto Tapani Hukki Apparatus for controlling discharge of classified sand from a hydraulic classifier
CN101439313A (en) * 2008-12-17 2009-05-27 中国铝业股份有限公司 Hydraulic sorting device
CN201579108U (en) * 2009-06-25 2010-09-15 威海市海王旋流器有限公司 Pulsed turbulent field fluidization mineral separator
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CN203565186U (en) * 2013-07-05 2014-04-30 安徽理工大学 Microbubble impulsive motion liquid-solid fluidized bed coarse coal slime sorting machine
JP2014223593A (en) * 2013-05-17 2014-12-04 日本シーム株式会社 Separation and recovery apparatus of waste plastic and separation and recovery methods of the same
CN204544403U (en) * 2015-02-13 2015-08-12 中南大学 Integrate power field multithread state gravity concentrator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038178A (en) * 1974-11-19 1977-07-26 Risto Tapani Hukki Apparatus for controlling discharge of classified sand from a hydraulic classifier
CN101439313A (en) * 2008-12-17 2009-05-27 中国铝业股份有限公司 Hydraulic sorting device
CN201579108U (en) * 2009-06-25 2010-09-15 威海市海王旋流器有限公司 Pulsed turbulent field fluidization mineral separator
CN201692871U (en) * 2010-04-15 2011-01-05 河南理工大学 Fine mineral hindered settling classifier
JP2014223593A (en) * 2013-05-17 2014-12-04 日本シーム株式会社 Separation and recovery apparatus of waste plastic and separation and recovery methods of the same
CN203565186U (en) * 2013-07-05 2014-04-30 安徽理工大学 Microbubble impulsive motion liquid-solid fluidized bed coarse coal slime sorting machine
CN204544403U (en) * 2015-02-13 2015-08-12 中南大学 Integrate power field multithread state gravity concentrator

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