CN108722667A - A kind of magnetic material dry grinding horizontal dry separation device - Google Patents
A kind of magnetic material dry grinding horizontal dry separation device Download PDFInfo
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- CN108722667A CN108722667A CN201810623887.8A CN201810623887A CN108722667A CN 108722667 A CN108722667 A CN 108722667A CN 201810623887 A CN201810623887 A CN 201810623887A CN 108722667 A CN108722667 A CN 108722667A
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- magnetic
- concentration equipment
- feed belt
- roughing
- magnetic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/22—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of magnetic material dry grinding horizontal concentration equipments, belong to Ore Dressing Engineering field, device includes dry type milling device, horizontal concentration equipment, concentrate collection device and tailing collection device；The horizontal concentration equipment includes feed belt, concentration equipment is arranged in the lower section of feed belt, the top of feed belt sets gradually roughing device and selecting device along direction of transfer, the feed end of roughing device is connected with dry type milling device discharge end, selecting device includes the blowing device being arranged in collecting hood and collecting hood, the top of selecting device and roughing device is respectively set pipeline and is connected with tailing collection device, and concentrate collection device is arranged in the output end of feed belt.The present invention is milled to dry type and dry type magnetic separation integrates, and shortens the technological process of iron ore dressing, using tailing dry drainage technique, solves the problems, such as that conventional wet technique Tailings Dam will produce secondary pollution, reduces the investment cost of project, reduces production cost.
Description
Technical field
The invention belongs to Ore Dressing Engineering fields, and in particular to a kind of magnetic material dry grinding horizontal concentration equipment.
Background technology
Magnetic separation is a kind of widely used common beneficiation method.For specific susceptibility χ > 3 × 10-3cm3The magnetic material of/g
For matter, the weak magnetic separation equipment of 120~279KA/m of magnetic field intensity (1500~3,500 0 e) range can be used（That is weak magnetic separation process）
Recycling.The common resource containing compared with ferromagnetic substance has natural magnetite, maghemite（γ-Fe2O3）, titanomagnetite, magnetic Huang iron
Mine, franklinite [（Zn,Mn）Fe2O4] and roasting magnetic iron ore (including power plant's iron content flyash), steelmaking converter metallurgical slag etc.
Iron charge.
Magnetic material weak magnetic separation process is divided into two kinds of wet method low intensity magnetic separation and dry method low intensity magnetic separation.
Wet method low intensity magnetic separation is prevailing technology of the current processing compared with strongly magnetic material.Technical process generally comprise crushing and screening,
Grind grading, multistage magnetic separation, concentrate concentration, filtering means dehydration, Tailing thickening, conveying, dam（Library）Interior tailing natural subsidence stockpiling, tail
Mine return water again use etc. links.Although wet method weak magnetic separation process can obtain the high iron charge resource of quality preservation, from comprising work
Skill process is analyzed, and compared with dry process, there are many deficiencies：
（1）Wet process route is long, and subsequent product increases beneficiation cost and capital cost of founding the factory containing concentration, filtering, dehydration link
With.For drought and water-scarce area, which seems especially prominent.
（2）Wet process will produce secondary pollution, influence groundwater quality；Tailing is stored up in library, and day-to-day operation must leakproof
Water, dam break, in addition to increasing cost, there is also safe and environment-friendly hidden danger；Tailings Dam takes up a large area, and is difficult to realize reclaim after closing library.
（3）The water content of wet magnetic separation concentrate is higher, and at severe cold area, winter, concentrate storage and transportation is difficult, and part is caused to be selected
Factory is forced to stop production, and influences economic benefit.
Dry method weak magnetic separation process commonly used at present, since upper size boundary is up to 150mm, lower limit is generally 3mm（It is i.e. high
The marker size of pressure roller grinding machine）, and the dissociation granularity of iron mineral is mostly 0.15mm (150 μm) hereinafter, therefore dry separation craft is answered more
It gives up for preselecting to throw（Barren rock, country rock）, reduce into mill amount, improve Beneficiation Feed Grade, to achieve the purpose that energy saving, consumption reduction, synergy.Iron
Expect that the procurement criteria of market demands is 60% grade or so, and the concentrate grade of dry cleaning technique is general under state-of-the art
50% or so, rarely has the production instance for reaching qualified concentrate containing.
Although there is above-mentioned shortcoming in dry process, but the product after magnetic separation, without being dehydrated link, Tailings Disposal compares
Simply, conveniently, and meet the environmental protection policy that country advocates, the cost of disposal of product is greatly lowered after magnetic separation.Next is conducive to
Severe cold area winter continuous production, being conducive to drought and water-scarce area reduces beneficiation cost, therefore dry magnetic separation technique still has
Irreplaceable advantage.
Invention content
The object of the present invention is to provide a kind of magnetic material dry grinding horizontal concentration equipments, are deposited with solving wet magnetic separation technique
The above problem and improve conventional dry magnetic separation process concentrate grade and metal recovery rate.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of magnetic material dry grinding horizontal concentration equipment, including dry type milling device, horizontal concentration equipment, concentrate collect dress
It sets and tailing collection device；The horizontal concentration equipment includes feed belt, and the lower section of feed belt is arranged concentration equipment, passes
The top of belt is sent to set gradually roughing device and selecting device along direction of transfer, feed end and the dry type milling of roughing device fill
It sets discharge end to be connected, selecting device includes the blowing device being arranged in collecting hood and collecting hood, selecting device and roughing device
Top pipeline be respectively set be connected with tailing collection device, concentrate collection device is arranged in the output end of feed belt.
The concentration equipment includes the alternately arranged magnetic pole of array positive and negative anodes, the upper surface of magnetic pole in the same plane, phase
There is gap between adjacent magnetic pole.
The feed belt is set in feed belt mechanism, and feed belt mechanism includes being set to below concentration equipment
Several transmission wheels being arranged in rack and rack, the lower surface of feed belt and the upper surface of magnetic pole come close to or in contact with, and transmit skin
The long axis of band and magnetic pole are alternately arranged that direction is identical, and material scraping plate, scraper is arranged in the rack of concentrate collection device side
The upper end of plate is contacted with feed belt, and lower end is towards the open end of concentrate collection device.
The bottom end of the roughing device opens, and the bottom end of roughing device two side is placed on the both sides of feed belt respectively,
Roughing device top setting rougher tailings collecting pipe be connected to tailing collection device, discharge end be arranged flexibility gas sealing plate with it is selected
Device is connected to, and the elastic gas sealing plate of feed end setting is connected to the Dual-Phrase Distribution of Gas olid ejiction opening that dry type milling device discharge end is arranged,
The input end of Dual-Phrase Distribution of Gas olid ejiction opening is circle, and ejection end is flat.
The bottom setting sealing apron of the collecting hood, top setting cleaner tailings collecting pipe and the tailing of selecting device are received
Acquisition means are connected to.
The blowing device includes several blowing mouths being arranged on the blower and blower for be set to selecting device bottom end,
The air intake of blower is connected to by connecting tube with air blower.
The bottom end of the selecting device is additionally provided with grid, and grid includes several non-magnetic metal net layers, non-magnetic metal mesh
The aperture of layer is 1-2mm, interlamellar spacing 1-2mm, the alternating fissure of displacement arrangement between non-magnetic metal net layer.
It is an inclined-plane between the top and feed end of the roughing device, several intercepters, intercepter is set on inclined-plane
One end is fixedly connected with inclined-plane, and the other end is bent downwardly.
Reciprocator is arranged in the bottom of the concentration equipment, and reciprocator includes the small of support concentration equipment
Movable connecting rod and linkage connecting rod is respectively set in one end of vehicle, trolley, and movable connecting rod is flexibly connected with reciprocating moving roller, and linkage connects
Bar is connect with connecting tube.
Roughing adjusting flap is set in the rougher tailings collecting pipe, and selected adjust of setting is turned in cleaner tailings collecting pipe
Plate.
The technical principle that the present invention uses for：
1, after magnetic-particle substance is magnetized in magnetic field, will produce has the positively related intensity of magnetization with magnetic source field strength, also
It is to say, the magnetive attraction that magnetic-particle is subject to generates relatively strong other than magnetic source magnetic field force there is also magnetic adsorptive power between particle
" magnetic coagulation ", " disk pack is wrapped up in " trend.Magnetisable material has " magnetic hysteresis " characteristic simultaneously, still has when it is in " zero strength " area
Certain " remanent magnetism ", but residual magnetization is relatively low（15-30 ○e）, " magnetic coagulation ", " disk pack is wrapped up in " between fine magnetic-particle are very
It is easy to be broken up by external force；
2, after magnetic material enters magnetic field space, magnetic-particle can by the magnetic field force of magnetic source, the field strength of size and magnetic source,
The magnetic property of gradient, magnetic-particle（Specific susceptibility）Etc. related；Field strength is high, gradient is big, the high then magnetic field force of specific susceptibility
By force.Since magnetic-particle is magnetized in magnetic field, certainly exists magnetic adsorptive power between particle and mutually adsorbs to form " magnetic coagulation ",
Magnetic adsorptive power is removed to be had outside the Pass with preceding factors, also related with the diameter of magnetic-particle, " remanent magnetism " that itself has etc.；
Particle diameter is smaller, and " remanent magnetism " is higher, and the magnetic adsorptive power between particle is just relatively bigger；
3, since the specific region in weak magnetic separation equipment style of opening magnetic system has " zero strength " area, by being arranged in " zero strength " area
Dispel air hose so that magnetic adsorptive power of the magnetic-particle between magnetic source magnetic field force, particle, horizontal base plate surface rub to particle
Wipe power, under the collective effect of particle gravity itself and system wind-force place air feed power, can break " magnetic coagulation " between magnetic-particle,
" disk pack is wrapped up in ", the effect of magnetic adsorptive power, air is dispelled at " positive pressure field of wind-force " between non-magnetic particle is not magnetic field force induced and particle
Overcome gravity to enter in wind system under flow-disturbing and the continuous action of system " the negative pressure wind field of force ", to realize magnetic material with it is non-
The separation of magnetic material；
4, wait for that the repeated multiple times experience " reunion "-" breaing up reunion "-of sorting material " rejecting non-magnetic particle "-" reuniting again "-" is beaten again
Dissipate "-the process of " rejecting again ", the sharpness of separation and the efficiency of separation of unit can be greatly improved.
The present invention having the beneficial effect that compared to the prior art：
1, the present invention to dry type milling and dry type magnetic separation integrate, can make dry mill be discharged Dual-Phrase Distribution of Gas olid directly into
Enter dry type magnetic separation device and carry out roughing, shortens the technological process of iron ore dressing；
2, it using tailing dry drainage technique, solves the problems, such as that conventional wet technique Tailings Dam will produce secondary pollution, eliminates peace
Entirely, hidden danger existing for environmental protection aspect is applied in severe cold area, drought and water-scarce area with irreplaceable advantage；
3, it is horizontal to can reach the same separation index of traditional wet magnetic separation process by the present invention（Iron concentrate grade reaches 56-65%, gold
Belong to the rate of recovery and reaches 85-95%）, solve the problems, such as that conventional dry dressing process concentrate grade is low, the rate of recovery is low；
4, integrated technique is selected using shorter dry grinding-horizon bar, reduces the investment cost of project, and the low economy of production cost
More preferably, there is high promotional value.
Description of the drawings
Fig. 1 is the structural schematic diagram of invention；
Attached drawing table and meaning are as follows：1, dry type milling device；2, horizontal concentration equipment；3, concentrate collection device；4, tailing is received
Acquisition means；5, feed belt；6, concentration equipment；7, roughing device；8, selecting device；9, blowing device；10, magnetic pole；11,
Gap；12, feed belt mechanism；13, rack；14, transmission wheel；15, material scraping plate；16, rougher tailings collecting pipe；17, flexible envelope gas
Plate；18, elastic gas sealing plate；19, Dual-Phrase Distribution of Gas olid ejiction opening；20, apron is sealed；21, cleaner tailings collecting pipe；22, blower；
23, blowing mouth；24, connecting tube；25, air blower；26, grid；27, inclined-plane；28, intercepter；29, reciprocator；30, small
Vehicle；31, movable connecting rod；32, link connecting rod；33, reciprocating moving roller；34, roughing adjusting flap；35, selected adjusting flap；
36, exhaust fan；37, cloth bag collector；38, collecting hood.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
The horizontal concentration equipment as shown in Figure 1, a kind of magnetic material is dry grinded, including dry type milling device 1, horizontal magnetic separation
Device 2, concentrate collection device 3 and tailing collection device 4；The horizontal concentration equipment 2 includes feed belt 5, feed belt 5
Lower section concentration equipment 6 is set, the top of feed belt 5 sets gradually roughing device 7 and selecting device 8 along direction of transfer, slightly
The feed end of screening device 7 is connected with 1 discharge end of dry type milling device, and selecting device 8 includes in collecting hood 38 and collecting hood 38
The top of the blowing device 9 of setting, selecting device 8 and roughing device 7 is respectively set pipeline and is connected with tailing collection device 4,
The output end setting concentrate collection device 3 of feed belt 5.By the raw material Dual-Phrase Distribution of Gas olid exit passageway of dry type milling device 1 with
The Dual-Phrase Distribution of Gas olid ejiction opening 19 of 2 roughing device 7 of horizontal concentration equipment connects, and utilizes the 7 higher negative pressure draft of roughing device
Effect, the Dual-Phrase Distribution of Gas olid of release mesh in dry type milling device 1 is pumped into roughing device 7.Material is in concentration equipment 6
Under the magnetic field force effect of 7 part of roughing device, the magnetic material in Dual-Phrase Distribution of Gas olid can be made to be obtained tentatively with non-magnetic material
Sorting.It is disposed adjacent selecting device 8 in the outlet of roughing device 7, so that roughing device 7 is produced by a feed belt 5 coarse-fine
Mine is delivered directly to selecting device 8, and is located at the magnetic field force of 8 part of selecting device in concentration equipment 6 and blowing device 9 is blown sky
Under the action of gas, rough concentrate is set to obtain selected.
The concentration equipment 6 includes the alternately arranged magnetic pole 10 of array positive and negative anodes, and the upper surface of magnetic pole 10 is in same plane
On, there is gap 11 between adjacent pole 10.Array magnetic pole 10 can make the feed belt 5 of laying material by concentration equipment 6
Shi Jinhang is repeatedly sorted.For concentration equipment 6 using high field intensity magnetic pole 10,10 Surface field intensity of magnetic pole is selected as 7000-8000
Oe, 5 upper surface magnetic field intensity of feed belt reach 2800-3500 Oe.
The feed belt 5 is set in feed belt mechanism 12, and feed belt mechanism 12 includes being set to concentration equipment 6
Several transmission wheels 14 being arranged in the rack 13 and rack 13 of lower section, the lower surface and the upper surface of magnetic pole 10 of feed belt 5 are leaned on
Close or contact, the long axis of feed belt 5 and magnetic pole 10 are alternately arranged that direction is identical, the machine of close 3 side of concentrate collection device
Material scraping plate 15 is set on frame 13, and the upper end of material scraping plate 15 is contacted with feed belt 5, opening of the lower end towards concentrate collection device 3
End.
The bottom end of the roughing device 7 opens, and the bottom end of 7 two side of roughing device is placed on the two of feed belt 5 respectively
The top setting rougher tailings collecting pipe 16 of side, roughing device 7 is connected to tailing collection device 4, the flexible envelope gas of discharge end setting
Plate 17 is connected to selecting device 8, the gas-particle two-phase of feed end setting elastic gas sealing plate 18 and the setting of 1 discharge end of dry type milling device
It flows ejiction opening 19 to be connected to, the input end of Dual-Phrase Distribution of Gas olid ejiction opening 19 is circle, and ejection end is flat.In 7 He of roughing device
Flexible gas sealing plate 17 is set between selecting device 8, rough concentrate air-flow when selecting device 8 is selected can be made not seal in compared with low pressure
Roughing device 7 in.The flat ejiction opening of Dual-Phrase Distribution of Gas olid ejiction opening 19 can make raw material Dual-Phrase Distribution of Gas olid enter roughing device 7
Afterwards along 5 width direction of feed belt, be close to feed belt 5 surface and spray, improve Dual-Phrase Distribution of Gas olid and be distributed in roughing device 7
Uniformity.
The bottom setting sealing apron 20 of the collecting hood 38, the top setting cleaner tailings collecting pipe 21 of selecting device 8
It is connected to tailing collection device 4.Dual-Phrase Distribution of Gas olid vacuum cavitations are 0-10Pa in collecting hood 38, can prevent 22 lower part of blower
Barotropic field dusty gas is excessive.
The blowing device 9 include be set on the blower 22 and blower 22 of 8 bottom end of selecting device be arranged it is several
The air intake of blowing mouth 23, blower 22 is connected to by connecting tube 24 with air blower 25.In selecting device 8 apart from feed belt 5
" zero strength " region of surface 5-8mm, along 5 width direction of feed belt setting blower 22 and blowing mouth 23, blower 22
Air with pressure the bed of material " zero strength " region on 5 surface of feed belt is blown to along the blowing mouth 23 with 80 ° or so of angle, when
After material enters the magnetic field of concentration equipment 6, magnetic coagulation is generated under magnetic fields, but become by magnetic coagulation when " zero strength " region
Gesture can weaken significantly, and under the action of blows air, major part non-magnetic material therein is blown out, to realize magnetic material
With the separation of non-magnetic material.
The bottom end of the selecting device 8 is additionally provided with grid 26, and grid 26 includes several non-magnetic metal net layers, non-magnetic gold
The aperture for belonging to stratum reticulare is 1-2mm, interlamellar spacing 1-2mm, the alternating fissure of displacement arrangement between non-magnetic metal net layer.It blows in material air and flows
Change the subparticle carried during flowing through grid 26, since the staggered floor of non-magnetic metal net layer is arranged, increases gas-solid two
The mutually perturbation action of stream, and residence time of the solid particle therein in magnetic system control range is extended, to enhance fine magnetic
Property the trend that adheres to each other of particle, form thicker magnetic-particle, and sink to falling on transmission under the action of magnetic field force and gravity
5 surface of belt.
It is an inclined-plane 27 between the top and feed end of the roughing device 7, several intercepters 28 is set on inclined-plane 27,
28 one end of intercepter is fixedly connected with inclined-plane 27, and the other end is bent downwardly.Intercepter 28 uses reclinate streamline shape, can
So that Dual-Phrase Distribution of Gas olid is retreaded in entrance roughing device 7 and is downwardly towards 5 surface of feed belt, it is strong in 5 surface high field of feed belt
Under the action of, most of magnetic material is adsorbed to 5 surface of feed belt in Dual-Phrase Distribution of Gas olid, and non-magnetic material is not due to by magnetic
The effect of field force continues to flow with air-flow in Dual-Phrase Distribution of Gas olid, to improve the efficiency of separation of feed belt 5.
Reciprocator 29 is arranged in the bottom of the concentration equipment 6, and reciprocator 29 includes support concentration equipment 6
Trolley 30, movable connecting rod 31 and linkage connecting rod 32, movable connecting rod 31 and reciprocating moving roller is respectively set in one end of trolley 30
33 flexible connections, linkage connecting rod 32 are connect with connecting tube 24.Reciprocator 29 can make concentration equipment 6 and blower 22 small
Under the drive of vehicle 30, swung along 5 length direction synchronous reciprocating of feed belt, to make " zero strength " region and 23 position of blowing mouth
It is relatively fixed, keeps synchronizing, realize that material sorting, the swinging distance of trolley are the 1- of two neighboring magnetic pole pitch with minimum air quantity
2 integral multiples, swing period 1-2s improve material by magnetic system reciprocating moving trolley along belt movement direction reciprocally swinging
The efficiency of separation.
Setting roughing adjusting flap 34 in the rougher tailings collecting pipe 16, the interior selected tune of setting of cleaner tailings collecting pipe 21
Save turnover panel 35.The stream pressure and flow of roughing device 7 and selecting device 8 can be adjusted.
Operation process is as follows：
1, magnetic material is added from the feed(raw material)inlet of dry type milling device 1, material levigate, granularity in dry type milling device 1
The fine powder that 90% or more is accounted for for 200 mesh is extracted out in air-flow slave；
2, the raw material Dual-Phrase Distribution of Gas olid extracted out is injected to the roughing device of horizontal concentration equipment 2 through Dual-Phrase Distribution of Gas olid ejiction opening 19
In 7；
3, in the case where the intercepter 28 of roughing device 7 and concentration equipment 6 act on, raw material Dual-Phrase Distribution of Gas olid repeatedly flows to feed belt 5
Surface, wherein magnetic material are adsorbed on 5 upper surface of feed belt by the magnetic field of concentration equipment 6 becomes rough concentrate, and with transmission skin
Band 5 is manoeuvred into selecting device 8, and non-magnetic material is then flowed with air-flow in Dual-Phrase Distribution of Gas olid, and is received in tailing
The lower generation negative pressure of the effect of exhaust fan 36 of acquisition means 4 is discharged into tailing collection device 4 from rougher tailings collecting pipe 16, magnetic material
Expect that the tailing amount being discharged in roughing area accounts for 75% or so of total tailing amount；
4, when rough concentrate moves into " zero strength " region of 8 first groups of magnetic poles 10 of selecting device with feed belt 5, pass through blowing
Pipe 22 is toward the air of surface of material injection wind speed 30-40m/s, the part non-magnetic particle blowout that will be mixed in magnetic coagulation material
Charge level, and taken away with air-flow；
5, material continues to move to enter second group of magnetic pole 10 with feed belt 5, obtains again selected；Join by multiple wind magnetic and select,
Magnetic material therein can be made to be enriched with step by step, output concentrate；
6, it after the communicated belt of concentrate 5 transports concentration equipment 6, is scraped in the transmission wheel 14 close to 3 one end of concentrate collection device
Flitch 15 is scraped from feed belt 5, is stored into concentrate collection device 3；
7, injection, which enters after the air on feed belt 5 in magnetic material overflows, carries a large amount of subparticle shape materials, fluidization
Subparticle with air during flowing through grid 26, the fine magnetic-particle of major part therein can mutually adsorb to be formed it is thicker
The magnetic material of particle, sinks and is fettered again by magnetic system；
8, the positive pressure Dual-Phrase Distribution of Gas olid being discharged from grid 26 enters the negative pressuren zone that the pumping of tailing collection device 4 is formed, and in exhausting
It is discharged into tailing collection device 4 from cleaner tailings collecting pipe 21 under the suction function that machine 36 generates, magnetic material is in selected area
The tailing amount of discharge accounts for 20% or so of total tailing amount；
9, rougher tailings collecting pipe 16 enters the cloth bag collector of tailing collection device 4 after converging with cleaner tailings collecting pipe 21
In 37, mine tailing is collected, the pure air of discharge discharges after the pressurization of exhaust fan 36.
Claims (10)
- The horizontal concentration equipment 1. a kind of magnetic material is dry grinded, it is characterised in that：Including dry type milling device（1）, horizontal magnetic Screening device（2）, concentrate collection device（3）With tailing collection device（4）；The horizontal concentration equipment（2）Including feed belt （5）, feed belt（5）Lower section be arranged concentration equipment（6）, feed belt（5）Top set gradually roughing along direction of transfer Device（7）And selecting device（8）, roughing device（7）Feed end and dry type milling device（1）Discharge end is connected, selected dress It sets（8）Including collecting hood（38）And collecting hood（38）The blowing device of interior setting（9）, selecting device（8）With roughing device（7）'s Pipeline and tailing collection device is respectively set in top（4）It is connected, feed belt（5）Output end be arranged concentrate collection device （3）.
- The horizontal concentration equipment 2. magnetic material as described in claim 1 is dry grinded, it is characterised in that：The concentration equipment（6） Including the alternately arranged magnetic pole of array positive and negative anodes（10）, magnetic pole（10）Upper surface in the same plane, adjacent pole（10）It Between have gap（11）.
- The horizontal concentration equipment 3. magnetic material as claimed in claim 1 or 2 is dry grinded, it is characterised in that：The feed belt （5）It is set to feed belt mechanism（12）On, feed belt mechanism（12）Including being set to concentration equipment（6）The rack of lower section （13）And rack（13）Several transmission wheels of upper setting（14）, feed belt（5）Lower surface and magnetic pole（10）Upper surface lean on Close or contact, feed belt（5）Long axis and magnetic pole（10）To be alternately arranged direction identical, close to concentrate collection device（3）One The rack of side（13）Upper setting material scraping plate（15）, material scraping plate（15）Upper end and feed belt（5）Contact, lower end are received towards concentrate Acquisition means（3）Open end.
- The horizontal concentration equipment 4. magnetic material as claimed in claim 3 is dry grinded, it is characterised in that：The roughing device（7） Bottom end open, roughing device（7）The bottom end of two side is placed on feed belt respectively（5）Both sides, roughing device（7）Top End setting rougher tailings collecting pipe（16）With tailing collection device（4）Connection, the flexible gas sealing plate of discharge end setting（17）With it is selected Device（8）Connection, the elastic gas sealing plate of feed end setting（18）With dry type milling device（1）The Dual-Phrase Distribution of Gas olid spray of discharge end setting Outlet（19）Connection, Dual-Phrase Distribution of Gas olid ejiction opening（19）Input end be circle, ejection end be it is flat.
- The horizontal concentration equipment 5. magnetic material as claimed in claim 4 is dry grinded, it is characterised in that：The collecting hood（38）'s Bottom setting sealing apron（20）, selecting device（8）Top be arranged cleaner tailings collecting pipe（21）With tailing collection device（4） Connection.
- The horizontal concentration equipment 6. the magnetic material as described in right wants 5 is dry grinded, it is characterised in that：The blowing device（9）Packet It includes and is set to selecting device（8）The blower of bottom end（22）And blower（22）Several blowing mouths of upper setting（23）, blower （22）Air intake pass through connecting tube（24）With air blower（25）Connection.
- The horizontal concentration equipment 7. magnetic material as claimed in claim 6 is dry grinded, it is characterised in that：The selecting device（8） Bottom end be additionally provided with grid（26）, grid（26）Including several non-magnetic metal net layers, the aperture of non-magnetic metal net layer is 1- 2mm, interlamellar spacing 1-2mm, the alternating fissure of displacement arrangement between non-magnetic metal net layer.
- The horizontal concentration equipment 8. magnetic material as claimed in claim 7 is dry grinded, it is characterised in that：The roughing device（7） Top and feed end between be an inclined-plane（27）, inclined-plane（27）Upper several intercepters of setting（28）, intercepter（28）One end With inclined-plane（27）It is fixedly connected, the other end is bent downwardly.
- The horizontal concentration equipment 9. magnetic material as claimed in claim 8 is dry grinded, it is characterised in that：The concentration equipment（6） Bottom be arranged reciprocator（29）, reciprocator（29）Including support concentration equipment（6）Trolley（30）, trolley （30）One end movable connecting rod is respectively set（31）With linkage connecting rod（32）, movable connecting rod（31）With reciprocating moving roller（33）It is living Dynamic connection, link connecting rod（32）With connecting tube（24）Connection.
- The horizontal concentration equipment 10. magnetic material as claimed in claim 9 is dry grinded, it is characterised in that：The rougher tailings is received Collector（16）Interior setting roughing adjusting flap（34）, cleaner tailings collecting pipe（21）The interior selected adjusting flap of setting（35）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623887.8A CN108722667A (en) | 2018-06-15 | 2018-06-15 | A kind of magnetic material dry grinding horizontal dry separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623887.8A CN108722667A (en) | 2018-06-15 | 2018-06-15 | A kind of magnetic material dry grinding horizontal dry separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108722667A true CN108722667A (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810623887.8A Pending CN108722667A (en) | 2018-06-15 | 2018-06-15 | A kind of magnetic material dry grinding horizontal dry separation device |
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| CN110292997A (en) * | 2019-06-04 | 2019-10-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | It is a kind of material Iron grade to can be improved and the connection of the rate of recovery selects unit and its screening technique |
| CN115352660A (en) * | 2022-09-21 | 2022-11-18 | 南漳龙蟒磷制品有限责任公司 | Packaging method of gas-powder-state phosphorus chemical product |
| CN116273395A (en) * | 2023-03-08 | 2023-06-23 | 酒泉钢铁(集团)有限责任公司 | Production process for producing iron ore concentrate by multistage dry grinding and dry separation of iron ore |
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