CN108672084A - A kind of technique and device improving iron ore concentrate slurry concentration - Google Patents
A kind of technique and device improving iron ore concentrate slurry concentration Download PDFInfo
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- CN108672084A CN108672084A CN201810523142.4A CN201810523142A CN108672084A CN 108672084 A CN108672084 A CN 108672084A CN 201810523142 A CN201810523142 A CN 201810523142A CN 108672084 A CN108672084 A CN 108672084A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 71
- 239000012141 concentrate Substances 0.000 title claims abstract description 63
- 239000002002 slurry Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000006148 magnetic separator Substances 0.000 claims abstract description 99
- 230000005347 demagnetization Effects 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims description 63
- 238000007790 scraping Methods 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 27
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 16
- 239000011707 mineral Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 16
- 238000007885 magnetic separation Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 7
- 235000008504 concentrate Nutrition 0.000 description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
-
- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of techniques and device improving iron ore concentrate slurry concentration.Technique includes：Step 1: primary concentration；It is handled by demagnetizer demagnetization, then by liquefier liquefaction Step 2: ore pulp will be concentrated once；Step 3: secondary concentration；Step 4: underflow concentrates.Device includes the first concentration magnetic separator, the second concentration magnetic separator, disk-type magnetic separator, mine pond, demagnetizer and liquefier；The concentrate slot of first concentration magnetic separator into pipe with the feed box of the second concentration magnetic separator by being connected to；Demagnetizer is arranged in one end for being connected of concentrate slot into pipe and the first concentration magnetic separator, and liquefier is arranged into the pipe other end；The concentrate slot of second concentration magnetic separator is connected with mine pond；The underflow gape of the underflow gape of first concentration magnetic separator and the second concentration magnetic separator is connected with disk-type magnetic separator respectively.Advantage：Simple for process, easy to operation, apparatus structure design is simple, reasonable, and floor space is few, and use cost is low, and concentrated effect is preferable.
Description
Technical field
The present invention relates to iron ore concentrate slurry concentration technique, more particularly to a kind of technique and device improving iron ore concentrate slurry concentration.
Background technology
Iron ore beneficiation technique includes the processes such as broken, mill choosing, filtering means dehydration, is needed in filtering means dehydration operation to mill choosing
Product iron ore concentrate slurry carries out concentration operation, by improving pulp density, achievees the purpose that improve filter dehydration efficiency, at present institute
The technique of use is concentrator concentration operation.When for iron ore concentrate slurry long-distance transportation through pipeline, it is also desirable to iron ore concentrate slurry into
Row inspissation improves pulp density, meets requirement of the pipeline to pulp density, the technique used at present is similarly dense
Machine concentrates operation.The form of concentrator includes common concentrator, high-efficiency thickener, lamella thickener, dense bucket etc., after concentration
Underflow enters filtering means dehydration or enters pipeline, and underflow enters pond.Entire concentration process relies on gravity, natural
Sedimentation, sinking speed is slow, and distance, efficiency is low, and underflow density and overflow water concentration are unable to control；Concentrator floor space simultaneously
Greatly, construction investment is high.
Invention content
Technical problem to be solved by the invention is to provide a kind of techniques and device improving iron ore concentrate slurry concentration, effectively
Overcome the defect of the prior art.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of technique improving iron ore concentrate slurry concentration is provided, is included the following steps：
Step 1: primary concentration obtains primary concentration ore pulp by iron ore concentrate slurry by the first concentration magnetic separator concentrating；
Step 2: by primary concentration ore pulp by demagnetizer demagnetization, then handled by liquefier liquefaction；
Step 3: secondary concentration, by step 3 liquefaction, treated that primary concentration ore pulp is dense by the second concentration magnetic separator
Contracting, obtains secondary concentration ore pulp, and be sent into mine pond and store for future use；
Step 4: underflow concentrates, the underflow after primary concentration and secondary concentration is subjected to mine by disk-type magnetic separator respectively
Liquid separation concentration, obtains concentration ore pulp, and be sent into mine pond and store for future use.
The beneficial effects of the invention are as follows：It is concentrated by two-stage magnetic separation and the concentration to underflow so that dense after slurry concentrating
Degree is higher, and each step is all made of pressure isolation technics, under the action of a magnetic force, makes miberal powder and water quick separating, to carry
The concentration of high ore pulp, in addition, by after once concentrating ore pulp demagnetization and particulate matter break up, enable its ore pulp secondary dense
It is effectively concentrated when contracting, efficient, concentration is stablized.
A kind of device improving iron ore concentrate slurry concentration, including the first concentration magnetic separator, the second concentration magnetic separator, disc type are provided
Magnetic separator, mine pond, demagnetizer and liquefier；
The concentrate slot of above-mentioned first concentration magnetic separator into pipe with the feed box of above-mentioned second concentration magnetic separator by being connected
It is logical；
Above-mentioned demagnetizer is arranged in above-mentioned one end for being connected of concentrate slot into pipe and above-mentioned first concentration magnetic separator, to
To entering the above-mentioned iron ore concentrate slurry demagnetization into after once concentrating in pipe, above-mentioned liquefier connection is arranged above-mentioned into the another of pipe
One end, to break up the fine iron breeze of agglomerate in the iron ore concentrate slurry after demagnetization；
The concentrate slot of above-mentioned second concentration magnetic separator is connected by pipeline with above-mentioned mine pond；
The underflow gape of above-mentioned first concentration magnetic separator, the underflow gape of above-mentioned second concentration magnetic separator and above-mentioned mine
Pond is connected by pipeline with above-mentioned disk-type magnetic separator respectively, and above-mentioned disk-type magnetic separator is to above-mentioned first concentration magnetic separator and upper
The underflow for stating the second concentration magnetic separator carries out magnetic separation separating-purifying, and the fine iron breeze after separation is delivered in above-mentioned mine pond.
Advantageous effect using above-mentioned further scheme is the device reasonable design, can effectively be carried out to iron ore concentrate slurry more
Grade magnetic separation separation concentration, concentrated effect are preferable.
Further, above-mentioned first concentration magnetic separator is arranged in the top of above-mentioned second concentration magnetic separator, above-mentioned disc type magnetic separation
Machine and mine pond are respectively arranged at the lower section of above-mentioned second concentration magnetic separator.
Advantageous effect using above-mentioned further scheme is whole equipment connection and reasonable arrangement, and mine can be realized by gravity flow mode
Starch the circulation in processes at different levels.
Further, above-mentioned disk-type magnetic separator include groove body, DPU disk pack unit, slag scraping mechanism, splicing groove, first driving means and
Mineral conveying mechanism；
The underflow gape of the underflow gape of above-mentioned first concentration magnetic separator and above-mentioned second concentration magnetic separator leads to respectively
It crosses pipeline to be connected to above-mentioned groove body, to convey underflow into above-mentioned groove body；
Above-mentioned DPU disk pack unit is made of shaft and multiple disks, and above-mentioned shaft is laterally spindle rotationally arranged in above-mentioned groove body
Top, what multiple above-mentioned disks were equidistantly spaced is coaxially fixed in above-mentioned shaft, and its underpart is stretched into above-mentioned groove body；
Above-mentioned splicing groove is horizontally set at the side of above-mentioned DPU disk pack unit；
Above-mentioned first driving means are connect with above-mentioned rotating shaft transmission, to drive above-mentioned DPU disk pack unit to rotate, and are being rotated
The fine iron breeze in underflow is adsorbed by DPU disk pack unit in journey；
Above-mentioned slag scraping mechanism is arranged on above-mentioned groove body, to by the fine iron breeze of each above-mentioned magnetic disk surface absorption scrape to
In above-mentioned splicing groove；
Above-mentioned mineral conveying mechanism is connect with above-mentioned splicing groove and mine pond respectively, to by the iron ore concentrate in above-mentioned splicing groove
Powder is delivered to above-mentioned mine pond.
Advantageous effect using above-mentioned further scheme is disk-type magnetic separator reasonable design, simple, convenient
Further, above-mentioned slag scraping mechanism include multiple pushing off the slag blocks, it is multigroup scrape clinker, scrape slag shaft, the second driving device and
Mineral conveying mechanism；
The above-mentioned top scraped slag shaft and be laterally spindle rotationally arranged in above-mentioned groove body, and be driven with above-mentioned second driving device
Connection；
Multiple above-mentioned pushing off the slag blocks are downwardly projecting arc block, and are separately positioned between two neighboring above-mentioned disk,
And be fixedly connected respectively with above-mentioned groove body by holder, one end of above-mentioned pushing off the slag block is extended respectively to close to the position of above-mentioned shaft
It sets, the other end extends respectively to side edge of the above-mentioned disk close to above-mentioned splicing groove, and is connected with above-mentioned splicing groove；
Multigroup above-mentioned clinker of scraping is corresponded with above-mentioned pushing off the slag block respectively, every group above-mentioned scrape clinker be equipped with it is multiple, and point
It is not connected and fixed by linking arm and above-mentioned slag shaft of scraping, and is uniformly distributed along the above-mentioned axial direction for scraping slag shaft；
Above-mentioned second driving device can drive above-mentioned slag shaft of scraping to rotate, and multigroup above-mentioned clinker of scraping is driven to rotate synchronously,
To drive each above-mentioned clinker of scraping to be slipped over along the upper surface of corresponding above-mentioned pushing off the slag block respectively, thus will each above-mentioned magnetic disk surface
The fine iron breeze of absorption is scraped to above-mentioned splicing groove.
Advantageous effect using above-mentioned further scheme is that slag scraping mechanism is reasonable in design, easy for operation, can be had
The fine iron breeze retained on pushing off the slag block is struck off in the rotation of effect, to which the fine iron breeze to magnetic disk surface absorption carries out removal, strikes off
Effect is good, quick and easy.
Further, above-mentioned pushing off the slag block and to scrape clinker be non-magnetic piece of stainless steel.
Advantageous effect using above-mentioned further scheme is to avoid pushing off the slag block and scrape clinker during the work time in disk shadow
Ring the phenomenon that lower magnetic conduction causes the mineral grain adsorbed on sucker to be difficult to effectively strike off.
Further, above-mentioned mineral conveying mechanism is screw conveyor, and the material entrance and material of above-mentioned screw conveyor go out
Mouth is connected with above-mentioned splicing groove and above-mentioned mine pond respectively.
Advantageous effect using above-mentioned further scheme is that its conveying is stablized, easy to operate.
Description of the drawings
Fig. 1 is the flow chart of the technique of the raising iron ore concentrate slurry concentration of the present invention；
Fig. 2 is the structural schematic diagram of the device of the raising iron ore concentrate slurry concentration of the present invention；
The structural representation that Fig. 3 coordinates for pushing off the slag block in the device of the raising iron ore concentrate slurry concentration of the present invention with disk.
In attached drawing, parts list represented by the reference numerals are as follows：
1, the first concentration magnetic separator, the 2, second concentration magnetic separator, 3, disk-type magnetic separator, 4, mine pond, 5, demagnetizer, 6, liquefaction
Device, 31, groove body, 32, DPU disk pack unit, 33, slag scraping mechanism, 34, splicing groove, 311, into pipe, 321, shaft, 322, disk,
331, pushing off the slag block, 332, scrape clinker, 333, scrape slag shaft, 334, linking arm.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment one：As shown in Figure 1, the technique of the raising iron ore concentrate slurry concentration of the present embodiment includes the following steps：
Step 1: primary concentration, iron ore concentrate slurry is concentrated by the first concentration magnetic separator 1, obtains primary concentration ore pulp；
Step 2: by primary concentration ore pulp by 5 demagnetization of demagnetizer, then pass through 6 liquefaction of liquefier processing；
Step 3: secondary concentration, by step 3 liquefaction, treated that primary concentration ore pulp is dense by the second concentration magnetic separator 2
Contracting, obtains secondary concentration ore pulp, and be sent into mine pond 4 and store for future use；
Step 4: underflow concentrates, the underflow after primary concentration and secondary concentration is subjected to mine by disk-type magnetic separator 3 respectively
Liquid separation concentration, obtains concentration ore pulp, and be sent into mine pond 4 and store for future use.
In concentration process, iron ore concentrate slurry enter first concentration magnetic separator 1 realizes under the action of a magnetic force fine iron breeze and
The separation of liquid, to improve the concentration of ore pulp, later, the ore pulp after primary concentration passes through demagnetizer 5, in the work of demagnetizer 5
It is opened with lower " magnetic linkage " by solid particle in ore pulp (fine iron breeze), enters back into liquefier 6 and carry out liquefaction processing, make ore pulp
" package water " between solid particle is quickly precipitated, and becomes free state, enters back into the secondary concentration into the second concentration magnetic separator 2
It is spare or be delivered to next manufacturing procedure through 4 transfer of mine pond to enter mine pond 4 afterwards, synchronous, the first concentration magnetic separator 1 and second concentrates
Underflow in magnetic separator 2 after magnetic separation separation enters back into disk-type magnetic separator 3 the pressure separation for carrying out miberal powder and water, later by miberal powder
It is sent into mine pond 4, iron ore concentrate slurry concentration can be increased to 65% or more by whole process, and each road enrichment process is all made of pressure point
From technology, under the action of a magnetic force, make miberal powder and water quick separating, to improve the concentration of ore pulp, efficient, concentration is steady
Fixed, this concentration technology floor space is 1/5-the 1/8 of common concentrator treatment process floor space, and investment reduces by 30%, mine
Slurry concentration can be controlled effectively, meet index request, it should be noted that：Fine iron breeze tool in ore pulp after primary concentration
Have magnetism, therefore, by demagnetization and ore pulp particulate matter break up can effectively by fine iron breeze in the ore pulp after primary concentration into
It row demagnetization and breaks up, prevents in the ore pulp after once concentrating fine iron breeze agglomerate to enter in the second concentration magnetic separator 2 and be difficult to carry out
The situation that magnetic separation separation influences secondary concentration effect occurs.
In addition, in order to ensure effluent quality requirement, flocculant can also be added in concentrating magnetic separator underflow, make solids
Floc sedimentation is formed, flows through disk-type magnetic separator 3, solid floc sedimentation is attracted on the disk of disk-type magnetic separator 3, passes through shedding mechanism discharging
Into pump pond, the underflow water water quality after suspended matter removal is more preferable
Embodiment two：As shown in Fig. 2, the present embodiment provides a kind of device improving iron ore concentrate slurry concentration, including first dense
Contracting magnetic separator 1, second concentrates magnetic separator 2, disk-type magnetic separator 3 and mine pond 4；
The concentrate slot of above-mentioned first concentration magnetic separator 1 is connected by pipeline with the feed box of above-mentioned second concentration magnetic separator 2
It is logical；
The concentrate slot of above-mentioned second concentration magnetic separator 2 is connected by pipeline with above-mentioned mine pond 4；
The underflow gape of above-mentioned first concentration magnetic separator 1, the above-mentioned second concentration underflow gape of magnetic separator 2 and above-mentioned
Mine pond 4 is connected by pipeline with above-mentioned disk-type magnetic separator 3 respectively, and above-mentioned disk-type magnetic separator 3 is to above-mentioned first concentration magnetic separation
The underflow of machine 1 and above-mentioned second concentration magnetic separator 2 carries out magnetic separation separating-purifying, and the iron ore concentrate slurry after separation is delivered to above-mentioned
Mine pond 4.
It is above-mentioned first concentration magnetic separator 1 and second concentrate magnetic separator 2 be the prior art, specially application No. is
The concentration magnetic separator recorded in the utility model patent of " 200520092900X ".
In concentration process, iron ore concentrate slurry is entered by the feed box of the first concentration magnetic separator 1 inside the first concentration magnetic separator 1,
After magnetic separation separation concentration, the feed box that the ore pulp after concentration enters the second concentration magnetic separator 2 through concentrate slot enters second
Concentrate inside magnetic separator 2, then after secondary magnetic separation separation concentration, ore pulp after concentration sent to storage in mine pond 4 through concentrate slot or
It is sent to next manufacturing procedure through mine pond 4, synchronous, the first concentration magnetic separator 1 and second concentrates the underflow in the groove body of magnetic separator 2
Enter in disk-type magnetic separator 3 by the road and carries out forcing separation so that miberal powder and slurries realize separation, to achieve the purpose that purification.
Preferably, above-mentioned first concentration magnetic separator 1 is arranged in the top of above-mentioned second concentration magnetic separator 2, above-mentioned disc electromagnetic
Machine 3 and mine pond 4 is selected to be respectively arranged at the lower section of above-mentioned second concentration magnetic separator 2, which makes each machine in whole equipment
Structure can realize gravity flow of the iron ore concentrate slurry under terrestrial gravitation in the process of running, very convenient.
Above-mentioned disk-type magnetic separator 3 includes groove body 31, DPU disk pack unit 32, slag scraping mechanism 33, splicing groove 34, first driving means
(not shown) and mineral conveying mechanism (not shown)；
The underflow gape difference of the underflow gape of above-mentioned first concentration magnetic separator 1 and above-mentioned second concentration magnetic separator 2
It is connected to above-mentioned groove body 31 by pipeline, to convey underflow into above-mentioned groove body 31；
Above-mentioned DPU disk pack unit 32 is made of shaft 321 and multiple disks 322, the laterally rotatable setting of above-mentioned shaft 321
In the top of above-mentioned groove body 31, what multiple above-mentioned disks 322 were equidistantly spaced is coaxially fixed in above-mentioned shaft 321, its underpart
It stretches into above-mentioned groove body 31；
Above-mentioned splicing groove 34 is horizontally set at the side of above-mentioned DPU disk pack unit 32；
Above-mentioned first driving means are sequentially connected with above-mentioned shaft 321, to drive above-mentioned DPU disk pack unit 32 to rotate, and are turning
Fine iron breeze in underflow is adsorbed by DPU disk pack unit during dynamic；
Above-mentioned slag scraping mechanism 33 is arranged on above-mentioned groove body 31, to the iron of each 322 adsorption of above-mentioned disk is smart
Miberal powder is scraped to above-mentioned splicing groove 34；
Above-mentioned mineral conveying mechanism is connect with above-mentioned splicing groove 34 and mine pond 4 respectively, to will be in above-mentioned splicing groove 34
Fine iron breeze is delivered in above-mentioned mine pond 4, and 32 structure design of DPU disk pack unit is simple, rationally, can have effectively to underflow ore pulp into
Row force magnetic separation separating-purifying, and by slag scraping mechanism 33 can effectively by the fine iron breeze adsorbed on disk 322 scrape to
It is delivered in splicing groove 34 in mine pond 4, entire process operations are fairly simple.
In general, the inner wall of 31 one end of above-mentioned groove body is equipped with unhurried current slot, the inner wall of the other end is equipped with effluent trough, wherein
The upper end level of unhurried current slot and effluent trough is below the height of 31 upper end of groove body, and effluent trough is equipped with the draining outside connection
Mouthful, the underflow gape of the underflow gape of above-mentioned first concentration magnetic separator 1 and above-mentioned second concentration magnetic separator 2 passes through pipe respectively
Road is connected to above-mentioned unhurried current slot, and liquid level of the ore pulp in unhurried current slot into unhurried current slot gradually rises until being spilled over to by the upper end
Inside groove body 31, in the process, first driving means drive DPU disk pack unit 32 to rotate, 32 rotation process middle and lower part of DPU disk pack unit
The fine iron breeze in ore pulp is constantly adsorbed in into mineral syrup liquid, so that it is adsorbed on the surface of disk 322, is passed through Slag Scraping Device later
The fine iron breeze of 322 adsorption of disk is mixed a small amount of liquid and scraped to splicing groove 34 by structure 33, and defeated through mineral conveying mechanism
It sending to storage in mine pond 4 or is sent to lower one of manufacturing procedure through mine pond 4, the water after separation enters through groove body 31 in effluent trough, and
It is discharged by discharge outlet, miberal powder content is very low in the water of discharge.
As shown in figure 3, preferably, above-mentioned slag scraping mechanism 33 include multiple pushing off the slag blocks 331, it is multigroup scrape clinker 332, scrape slag turn
Axis 333, the second driving device (not shown) and mineral conveying mechanism；
The above-mentioned top scraped slag shaft 333 and be laterally spindle rotationally arranged in above-mentioned groove body 31, and filled with above-mentioned second driving
Set drive connection；
Multiple above-mentioned pushing off the slag blocks 331 are downwardly projecting arc block, and are separately positioned on two neighboring above-mentioned disk 322
Between, and be fixedly connected respectively with above-mentioned groove body 31 by holder, one end of above-mentioned pushing off the slag block 331 is extended respectively to close to above-mentioned
The position of shaft 321, the other end extend respectively to side edge of the above-mentioned disk 322 close to above-mentioned splicing groove 34, and with it is upper
Splicing groove 34 is stated to be connected；
Multigroup above-mentioned clinker 332 of scraping is corresponded with above-mentioned pushing off the slag block 331 respectively, and every group of above-mentioned clinker 332 of scraping is equipped with
It is multiple, and be connected and fixed respectively by linking arm 334 and above-mentioned slag shaft 333 of scraping, and scrape the axial equal of slag shaft 333 along above-mentioned
Even distribution；
Above-mentioned second driving device can drive above-mentioned slag shaft 333 of scraping to rotate, and multigroup above-mentioned clinker 332 of scraping is driven to synchronize
Rotation, to drive each above-mentioned clinker 332 of scraping to be slipped over along the upper surface of corresponding above-mentioned pushing off the slag block 331 respectively, thus will be each
The fine iron breeze of 322 adsorption of above-mentioned disk is scraped to above-mentioned splicing groove 34；
Above-mentioned mineral conveying mechanism is above-mentioned the fine iron breeze in above-mentioned splicing groove 34 to be delivered in above-mentioned mine pond 4
Gap between 331 both sides of pushing off the slag block and adjacent two disks 322 is generally 0.5-1mm, disk 322 in rotation process not
Fine iron breeze in disconnected absorption groove body 31 in underflow ore pulp, and striking off through pushing off the slag block 331 first remains in the upper table of pushing off the slag block 331
Face, later as the second driving device drives the synchronous rotation scraped slag shaft 333 and multiple linking arms 334 and scrape clinker 332, from
And make in every group it is multiple scrape clinker 332 and can slip over corresponding 331 upper surface of pushing off the slag block successively, to by pushing off the slag block 331
The fine iron breeze that upper surface retains mixes a small amount of liquid and scrapes to splicing groove 34, and is delivered to mine pond through mineral conveying mechanism
In 4, entire slag scraping mechanism 33 is simple in structure, easy to operate, can effectively strike off and collect the iron essence of 322 adsorption of disk
Miberal powder, to carry out purification recycling to underflow ore pulp.
Above-mentioned 331 upper surface of pushing off the slag block is provided with dovetail groove along its cambered surface, scrapes clinker 332 far from corresponding linking arm 334
One end is designed as the matched shape of dovetail groove, scrapes clinker 332 with scraping in 334 rotation process of slag shaft 333 and linking arm, stretches into simultaneously
It is contacted with the slot bottom of dovetail groove, to scrape the iron ore concentrate retained in dovetail groove to splicing groove 34, which is conducive to pushing off the slag block
331 can scrape fine iron breeze when striking off the fine iron breeze on 322 surface of disk to storing in dovetail groove.
Above-mentioned pushing off the slag block 331 is fixedly connected by the holder being connect with its bottom with groove body 31.
It should be strongly noted that unlimited between the 31 both sides inner wall of two disks 322 and groove body at 321 both ends of shaft
Close to (gap is very small, and general gap is 0.5-1mm), but not it is in direct contact friction.
It is that water rushes mode and plane item unloads mine mode that disk-type magnetic separator used at present, which unloads mine mode, and the water mode of rushing increases newly
Water consumption reduces pulp density, and digs item and unload mine mode and unload mine and be not thorough, and unloading mine every time has residue.This ore unloader structure
Compared with the prior art, due to non-flushing, it is high to unload mine concentration, using 331 circular-arc-shaped design of pushing off the slag block, is transported with clinker 332 is scraped
Dynamic rail mark is identical, and it is thoroughly clean to unload mine every time.
Best, above-mentioned pushing off the slag block 331 and to scrape clinker 332 be non-magnetic piece of stainless steel both can be avoided in magnetic
Miberal powder is adsorbed under the influence of disk 322 after magnetic conduction, causes the phenomenon that miberal powder is difficult to effectively strike off.
Preferably, above-mentioned mineral conveying mechanism is screw conveyor, the material entrance and material of above-mentioned screw conveyor go out
Mouth is connected with above-mentioned splicing groove 34 and above-mentioned mine pond 4 respectively, reasonable design, is conducive to the effective defeated of high concentration iron ore concentrate slurry
It send.
Above-mentioned demagnetizer 5 and liquefier 6 are the prior art, and the coil that should be of demagnetizer 5 most preferably takes off magnetic by formula
Device passes through the channel of demagnetizer 5 into pipe 311, and when ore pulp is flowed through into pipe 311, demagnetizer 5 can be effectively and uniformly to passing through
Ore pulp carry out demagnetization, above-mentioned liquefier is traditional liquefier on the market.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of technique improving iron ore concentrate slurry concentration, which is characterized in that include the following steps：
Step 1: primary concentration, iron ore concentrate slurry is concentrated by the first concentration magnetic separator (1), obtains primary concentration ore pulp；
Step 2: by primary concentration ore pulp by demagnetizer (5) demagnetization, then pass through liquefier (6) liquefaction processing；
Step 3: secondary concentration, by step 3 liquefaction, treated that primary concentration ore pulp is dense by the second concentration magnetic separator (2)
Contracting, obtains secondary concentration ore pulp, and be sent into mine pond (4) and store for future use；
Step 4: underflow concentrates, the underflow after primary concentration and secondary concentration is subjected to mine liquid by disk-type magnetic separator (3) respectively
Separation concentration obtains concentration ore pulp, and is sent into mine pond (4) and stores for future use.
2. a kind of device improving iron ore concentrate slurry concentration, it is characterised in that：Including the first concentration magnetic separator (1), the second concentration magnetic
Select machine (2), disk-type magnetic separator (3), mine pond (4), demagnetizer (5) and liquefier (6)；
The concentrate slot of the first concentration magnetic separator (1) passes through the feed into pipe (311) and the second concentration magnetic separator (2)
Case is connected；
Demagnetizer (5) setting is in one to be connected into pipe (311) with the concentrate slot of the first concentration magnetic separator (1)
End, to entering the iron ore concentrate slurry demagnetization into after once concentrating in pipe (311), liquefier (6) the connection setting
In the other end into pipe (311), to break up the fine iron breeze of agglomerate in the iron ore concentrate slurry after demagnetization；
The concentrate slot of the second concentration magnetic separator (2) is connected by pipeline with the mine pond (4)；
The underflow gape of the first concentration magnetic separator (1), the second concentration magnetic separator underflow gape of (2) and described
Mine pond (4) is connected by pipeline with the disk-type magnetic separator (3) respectively, and the disk-type magnetic separator (3) is to dense to described first
The underflow of contracting magnetic separator (1) and the second concentration magnetic separator (2) carries out magnetic separation separating-purifying, and by the fine iron breeze after separation
It is delivered in the mine pond (4).
3. a kind of device improving iron ore concentrate slurry concentration according to claim 2, it is characterised in that：The first concentration magnetic
Select machine (1) setting in the top of the second concentration magnetic separator (2), the disk-type magnetic separator (3) and mine pond (4) are respectively arranged at
The lower section of the second concentration magnetic separator (2).
4. a kind of device improving iron ore concentrate slurry concentration according to claim 3, it is characterised in that：The disk-type magnetic separator
(3) include groove body (31), DPU disk pack unit (32), slag scraping mechanism (33), splicing groove (34), first driving means and mineral conveyer
Structure；
The underflow gape difference of the underflow gape of the first concentration magnetic separator (1) and the second concentration magnetic separator (2)
It is connected to the groove body (31) by pipeline, to convey underflow into the groove body (31)；
The DPU disk pack unit (32) is made of shaft (321) and multiple disks (322), and the shaft (321) is laterally rotatable
Top in the groove body (31) is set, and what multiple disks (322) were equidistantly spaced is coaxially fixed on the shaft (321)
On, its underpart is stretched into the groove body (31)；
The splicing groove (34) is horizontally set at the side of the DPU disk pack unit (32)；
The first driving means are sequentially connected with the shaft (321), to drive the DPU disk pack unit (32) to rotate, and are turning
Fine iron breeze in underflow is adsorbed by DPU disk pack unit (32) during dynamic；
The slag scraping mechanism (33) is arranged on the groove body (31), to incite somebody to action the iron of each disk (322) adsorption
Concentrate powder is scraped to the splicing groove (34)；
The mineral conveying mechanism is connect with the splicing groove (34) and mine pond (4) respectively, to will be in the splicing groove (34)
Fine iron breeze after purification is delivered in the mine pond (4).
5. a kind of device improving iron ore concentrate slurry concentration according to claim 4, it is characterised in that：The slag scraping mechanism
(33) include multiple pushing off the slag blocks (331), multigroup scrape clinker (332), scrape slag shaft (333) and the second driving device；
The top scraped slag shaft (333) and be laterally spindle rotationally arranged in the groove body (31), and filled with second driving
Set drive connection；
Multiple pushing off the slag blocks (331) are downwardly projecting arc block, and are separately positioned on the two neighboring disk (322)
Between, and it is fixedly connected respectively with the groove body (31) by holder, one end of the pushing off the slag block (331) extends respectively to close
The position of the shaft (321), the other end extend respectively to a side edge of the disk (322) close to the splicing groove (34)
Place, and be connected with the splicing groove (34)；
Multigroup clinker (332) of scraping is corresponded with the pushing off the slag block (331) respectively, and clinker (332) is scraped described in every group and is all provided with
Have multiple, and is connected and fixed respectively by linking arm (334) and the slag shaft (333) of scraping, and slag shaft (333) is scraped along described
Axial direction be uniformly distributed；
Second driving device can drive the slag shaft (333) of scraping to rotate, and multigroup clinker (332) of scraping is driven to synchronize
Rotation, with drive respectively it is each it is described scrape clinker (332) and slipped over along the upper surface of the corresponding pushing off the slag block (331), to will
The fine iron breeze of each disk (322) adsorption is scraped to the splicing groove (34).
6. a kind of device improving iron ore concentrate slurry concentration according to claim 5, it is characterised in that：The pushing off the slag block
(331) and to scrape clinker (332) be non-magnetic piece of stainless steel.
7. according to a kind of device improving iron ore concentrate slurry concentration of claim 4 to 6 any one of them, it is characterised in that：It is described
Mineral conveying mechanism be screw conveyor, the screw conveyor material entrance and material outlet respectively with the splicing groove
(34) it is connected with the mine pond (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523142.4A CN108672084A (en) | 2018-05-28 | 2018-05-28 | A kind of technique and device improving iron ore concentrate slurry concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523142.4A CN108672084A (en) | 2018-05-28 | 2018-05-28 | A kind of technique and device improving iron ore concentrate slurry concentration |
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| Publication Number | Publication Date |
|---|---|
| CN108672084A true CN108672084A (en) | 2018-10-19 |
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ID=63808607
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810523142.4A Pending CN108672084A (en) | 2018-05-28 | 2018-05-28 | A kind of technique and device improving iron ore concentrate slurry concentration |
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| Country | Link |
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