CN203076082U - Magnetic floatation separation device with bubble generators - Google Patents
Magnetic floatation separation device with bubble generators Download PDFInfo
- Publication number
- CN203076082U CN203076082U CN2013200371568U CN201320037156U CN203076082U CN 203076082 U CN203076082 U CN 203076082U CN 2013200371568 U CN2013200371568 U CN 2013200371568U CN 201320037156 U CN201320037156 U CN 201320037156U CN 203076082 U CN203076082 U CN 203076082U
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- CN
- China
- Prior art keywords
- magnetic
- jet
- overflow launder
- sorting
- separation column
- Prior art date
- Legal status (The legal status 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 status listed.)
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
Abstract
The utility model provides a magnetic floatation separation device with bubble generators. The device comprises an overflow launder and a separation column and is characterized in that the overflow launder is a bucket body with an oblique bottom; the bottom of the overflow launder is fixedly connected to to the outside of the upper part of the separation column; a plurality of defoaming water pipes with nozzles are uniformly distributed along the annular inner wall of the overflow launder; a plurality of sieve plates are arranged in the separation column at intervals; magnetic systems are arranged outside or inside the separation column from top to bottom and are electromagnetic coils or permanent magnets; the bottom of the separation column is connected with an ore discharge device via a flange; a middling circulating cone is arranged in the ore discharge device; the bottom of the middling circulating cone is connected with an inflow end of a circulating ore pulp pool; microbubble generators and jet mineralization pipes are arranged on the side walls of the separation column; jet bubble generators and middling cyclic distributing rings are arranged on the jet mineralization pipes; and the jet mineralization pipes are connected with an outflow end of the circulating ore pulp pool. The device solves the problems that in the in the prior art, the floatation process is too long, the cost is high, magnetic inclusion is easy to generate by magnetic separation and medium intergrowth is not easy to remove.
Description
Technical field
The utility model belongs to the iron ore beneficiation apparatus field, relates in particular to a kind of magnetic flotation device, is a kind of magnetic flotation device that adopts multiple aerating device and chats EGR specifically.Mainly be applicable to iron mineral and intergrowth mineral, gangue mineral sorting.
Background technology
Development along with yield, iron mineral down cloth granularity is inhomogeneous, grain size number is thin, and the selected link of current iron mineral magnetic separator adopts magnetic separator, because its magnetic field intensity is higher, magnetic field force is bigger, and magnetic field is constant, can make thousands of monomer magnetite ore particles and intergrowth particle produce powerful magnetization magnetic coagulation in magnetic field, after leaving magnetic field, because the existence of remanent magnetism produces the remanent magnetism magnetic coagulation.Thereby in the magnetic separation process, there be " magnetic is mingled with " and " non magnetic being mingled with ".Magnetic is mingled with makes intergrowth enter magnetic concentrate, and non magnetic being mingled with makes the monomer gangue enter magnetic concentrate.Therefore be unfavorable for the raising of the smart opaque amount of iron, single magnetic selection method is difficult to realize that medium intergrowth separates with the qualified mineral of liberation degree of minerals.And adopt single method for floating, can avoid the drawback of single magnetic separation, but the foam volume that produces in the flotation assorting room is big, and gas holdup height, foam viscosity are difficult for broken by force, behind the buffering of the flowing through dusting cover undersize pond, because of the cavitated restriction of content of pump, the operating efficiency of pump reduces greatly, and foam is being reprinted to the process of scanning flotation column, foam delivery difficulty, pump pond emit the groove phenomenon serious.Therefore need to reduce the device processes ability or consume a large amount of froth breaking water, but the intervention of a large amount of froth breaking water causes the reduction of follow-up flotation operation pulp density, cause the equipment efficiency of separation to descend.Therefore, single flotation has long flow path, flotation cost height, and the regime of agent complexity, problems such as link filtration difficulty are filtered in the easy fouling of pipeline.This shows, adopt single flotation or magnetic separation to be difficult to iron mineral is carried out efficient, high-quality sorting, therefore need badly existing iron ore screening installation is improved.
Summary of the invention
The purpose of this utility model provides a kind of floating sorting unit of magnetic that has bubble generator, and is long with flotation flowsheet in the solution prior art, the cost height, and magnetic separation easily produces magnetic and is mingled with, and medium intergrowth is difficult for problems such as rejecting.
The purpose of this utility model is achieved in that it comprises overflow launder and sorting post, it is characterized in that: described overflow launder is the staving of bottom angled, its bottom is fixed in sorting post upper outside, and overflow launder is evenly equipped with some froth breaking water pipes that have shower nozzle along annular inner wall; Some sieve plates are set in the sorting post at interval; Be provided with magnetic system outside the sorting post or in the cylinder from top to bottom, magnetic is solenoid or permanent magnet; The sorting column bottom links to each other with the ore discharge device by flange, is provided with chats circulation awl in the ore discharge device, and chats circulation awl bottom flows into end with the circulation slime dam and links to each other; Sorting post sidewall is provided with microvesicle generators, jet mineralising pipe, and jet mineralising pipe is provided with jet bubble generator and chats cycle assignment ring, and jet mineralising pipe links to each other with the outflow end of circulation slime dam.
Run through under the described sieve plate some barretters are set
Described external coil is surrounded by non-magnet_conductible material outward.
The scope that described magnetic is is 1/3 ~ 2/3 of a sorting post height.
Advantage of the present utility model and beneficial effect are as follows: with the magnetic system that non-magnet material is made, the cylinder bottom is provided with bubble generator or eddy flow inlet duct; Utilize compound force fields such as polarity, magnetic repulsion force, gravity, buoyancy, surface chemistry absorption affinity, mineral are efficiently separated, nonmagnetic being mingled with, realization sorts the maximum metal rate of recovery of link; Overcome the shortcoming that iron content is too high in the flotation tailing, the cation foam is sticking by magnetic field as inhibitor; The setting of overflow foam tank inner edge wall has the spray header of froth breaking effect, and the overflow of sorting post increases the overflow area along colored type or one-sided type foam walking groove is set; The combination of jet bubble generator and microvesicle generators is adopted in inflation, partial pressure inequality in the cylinder that has caused when having avoided only adopting the jet bubble generator; External magnetic field adopts non-magnet_conductible material to surround magnetic field, with protection magnetic field.
Description of drawings
Fig. 1 is that a kind of interior magnetic of the present utility model is the structural representation sketch of magnetic flotation device;
Fig. 2 is the enlarged drawing of Fig. 1 overflow launder structure;
Fig. 3 is the plan structure simplified schematic diagram of Fig. 2 overflow launder structure;
Fig. 4 is the plan structure schematic diagram of sieve plate;
Fig. 5 is the structural representation sketch of the outer magnetic of sorting post system;
Fig. 6 is the structural representation sketch of magnetic system in the sorting post;
Fig. 7 is the structural representation that a kind of outer magnetic of the utility model is the magnetic flotation device.
Main symbol description in the accompanying drawing: 1 overflow launder, 2 mineral-feeding pipes, 3 sorting posts, 4 sieve plates, 5 chats circulation awl, 6 underflow ore discharge pipes, 7 chats ore discharge pipes, 8 ore discharge devices, 9 jet mineralising pipes, 91 jet bubble generators, 92 microvesicle generators, 10 chats feed ports, 11 chats cycle assignment rings, 12 magnetic system, 13 overflow launder ore discharge pipes, 14 froth breaking water pipes, 15 shower nozzles.
Below in conjunction with accompanying drawing and by example the utility model is described in further detail; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.
The specific embodiment
With reference to interior magnetic shown in Figure 1 is the magnetic flotation device, it comprises overflow launder 1 and sorting post 3, described overflow launder 1 is the staving of bottom angled, and its bottom is fixed in sorting post 3 upper outside, and overflow launder is evenly equipped with some froth breaking water pipe 14(of shower nozzle 15 that have shown in Fig. 2,3 along annular inner wall); Be provided with among some sieve plate 4(figure at interval in the sorting post and only draw one), run through under the sieve plate that some barretters (as shown in Figure 4) being set, sieve-plate aperture ratio is more than 50%; Being provided with magnetic in the sorting post from top to bottom is 12, and the scope of magnetic system is 2/3 of a sorting post height, and magnetic is solenoid or permanent magnet (as shown in Figure 6); The sorting column bottom links to each other with ore discharge device 8 by flange, is provided with chats circulation awl 5 in the ore discharge device, and chats circulation awl bottom flows into end by chats ore discharge pipe 7 and circulation slime dam (not drawing among the figure) and links to each other; Sorting post sidewall is provided with two microvesicle generators 92, two jet mineralising pipes 9, and jet mineralising pipe 9 is provided with jet bubble generator 91 and chats cycle assignment ring 11, and jet mineralising pipe links to each other with the outflow end of circulation slime dam by chats feed port 10.
The course of work of magnetic flotation device: after the magnetic flotation device was ready, at first the power-on switch board provided pulse current to magnetic system (solenoid or permanent magnet), made and produced magnetic field in the sorting post.Regulate suitable magnetic field intensity and foam growing amount, the ore pulp after then adding medicine being stirred feeds in the sorting post by mineral-feeding pipe, and mineral carry out sorting under the effect of composite forces such as magnetic force, buoyancy, gravity.Mineral grain freely descends under the gravity effect in the ore pulp, the bubble that rises and the mineral grain of the decline formation mineral laden bubble that bumps, floatability mineral is preferably caught by rising bubble, and together rise with bubble and to enter field regions, the magnetic mineral particle that is mingled with in the mineral that carried by bubble comes off under the effect of magnetic field, non magnetic ore continues to rise in the overflow launder with bubble, by discharging from the ore discharge pipe of overflow launder behind the froth breaking water froth breaking of shower nozzle ejection and as tailing water.In the process of sorting, the magnetic mineral particle constantly disperses under pulsed magnetic field action and reunites, the gangue mineral that is mixed in is wherein caught by bubble when disperseing, magnetic mineral is because the remanent magnetism effect forms magnetic group, under the gravity effect, move downward and enter chats circulation awl, be drawn in the slime dam by the chats circulating pump then and gather, tangentially enter the sorting post and carry out sorting once more distributing to some jet bubble generators by the circulation slime dam.Repeatedly the magnetic mineral of sorting is discharged by underflow ore discharge pipe 6, and selected non magnetic ore flows out from overflow launder ore discharge pipe 13, reaches the purpose of sorting.
According to the magnetic flotation post that uses needs also can adopt outer magnetic to be, its structure as shown in Figure 7, its outer magnetic architecture is as shown in Figure 5.For further avoiding ore pulp eddy current rotation in sorting post field regions, can suitably set up sieve plate or increase barretter length.
Claims (4)
1. a magnetic that has bubble generator floats sorting unit, it comprises overflow launder and sorting post, it is characterized in that: described overflow launder is the staving of bottom angled, and its bottom is fixed in sorting post upper outside, and overflow launder is evenly equipped with some froth breaking water pipes that have shower nozzle along annular inner wall; Some sieve plates are set in the sorting post at interval; Be provided with magnetic system outside the sorting post or in the cylinder from top to bottom, magnetic is solenoid or permanent magnet; The sorting column bottom links to each other with the ore discharge device by flange, is provided with chats circulation awl in the ore discharge device, and chats circulation awl bottom flows into end with the circulation slime dam and links to each other; Sorting post sidewall is provided with microvesicle generators and jet mineralising pipe, and jet mineralising pipe is provided with jet bubble generator and chats cycle assignment ring, and jet mineralising pipe links to each other with the outflow end of circulation slime dam.
2. magnetic flotation device according to claim 1 is characterized in that: run through under the described sieve plate that some barretters being set.
3. magnetic flotation device according to claim 1 and 2 is characterized in that: described external coil is surrounded by non-magnet_conductible material outward.
4. magnetic flotation device according to claim 3 is characterized in that: the scope that described magnetic is is 1/3 ~ 2/3 of a sorting post height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200371568U CN203076082U (en) | 2013-01-23 | 2013-01-23 | Magnetic floatation separation device with bubble generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200371568U CN203076082U (en) | 2013-01-23 | 2013-01-23 | Magnetic floatation separation device with bubble generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076082U true CN203076082U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200371568U Expired - Fee Related CN203076082U (en) | 2013-01-23 | 2013-01-23 | Magnetic floatation separation device with bubble generators |
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| CN (1) | CN203076082U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815753A (en) * | 2015-04-30 | 2015-08-05 | 中国地质科学院矿产综合利用研究所 | Floating agglomeration electromagnetic fine selection equipment |
| CN107755091A (en) * | 2017-11-25 | 2018-03-06 | 玉溪大红山矿业有限公司 | A kind of floating column magnetic separator that beneficiation cost can be greatly lowered |
| WO2021258632A1 (en) * | 2020-06-22 | 2021-12-30 | 中国矿业大学 | Pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation |
| CN114226072A (en) * | 2021-12-10 | 2022-03-25 | 临沂会宝岭铁矿有限公司 | Electromagnetic elutriation desulfurization method and system for fine iron powder |
| CN114425485A (en) * | 2021-12-14 | 2022-05-03 | 中南大学 | Method for sorting magnetic iron-containing minerals |
| CN116851408A (en) * | 2023-07-31 | 2023-10-10 | 碳达(深圳)新材料技术有限责任公司 | Gas slag treatment device and method |
-
2013
- 2013-01-23 CN CN2013200371568U patent/CN203076082U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815753A (en) * | 2015-04-30 | 2015-08-05 | 中国地质科学院矿产综合利用研究所 | Floating agglomeration electromagnetic fine selection equipment |
| CN104815753B (en) * | 2015-04-30 | 2017-02-22 | 中国地质科学院矿产综合利用研究所 | Floating agglomeration electromagnetic fine selection equipment |
| CN107755091A (en) * | 2017-11-25 | 2018-03-06 | 玉溪大红山矿业有限公司 | A kind of floating column magnetic separator that beneficiation cost can be greatly lowered |
| WO2021258632A1 (en) * | 2020-06-22 | 2021-12-30 | 中国矿业大学 | Pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation |
| CN114226072A (en) * | 2021-12-10 | 2022-03-25 | 临沂会宝岭铁矿有限公司 | Electromagnetic elutriation desulfurization method and system for fine iron powder |
| CN114425485A (en) * | 2021-12-14 | 2022-05-03 | 中南大学 | Method for sorting magnetic iron-containing minerals |
| CN116851408A (en) * | 2023-07-31 | 2023-10-10 | 碳达(深圳)新材料技术有限责任公司 | Gas slag treatment device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160123 |
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| EXPY | Termination of patent right or utility model |