CN106345605B - A kind of low-grade difficulty of fine silicate-type selects red iron rougher concentration upgrading drop silicon technology - Google Patents
A kind of low-grade difficulty of fine silicate-type selects red iron rougher concentration upgrading drop silicon technology Download PDFInfo
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- CN106345605B CN106345605B CN201611058096.2A CN201611058096A CN106345605B CN 106345605 B CN106345605 B CN 106345605B CN 201611058096 A CN201611058096 A CN 201611058096A CN 106345605 B CN106345605 B CN 106345605B
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
- B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
- B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
- B03B5/24—Constructional details of jigs, e.g. pulse control devices
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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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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Abstract
The invention discloses a kind of fine low-grade difficulties of silicate-type to select red iron rougher concentration upgrading drop silicon technology, including by concentration 25~45%, Fe grade 30~40%, the low-grade difficulty of fine silicate-type of Si grade 30~40% select red iron rougher concentration ore pulp pass through every thick equipment obtain every mine under scalping and every in scalping mine every thick step；The centrifugal jigging step of upgrading drop silicon concentrate and tailings is obtained through centrifugal jigging every mine under scalping by what step A obtained.The present invention is sorted using concentrate every thick, centrifugal jigging are double, realize bloodstone and part and the adhesion of silicate gangue, the recycling of package fine-grained disseminated grain weak magnetic bloodstone, achieve the purpose that improve low-grade hematite concentrates grade and reduces silicone content, the yield of iron ore is improved simultaneously, overcome that reverse floatation process purification of waste water and reagent cost are higher, single gravity concentration process yield is low, the weak magnetic-low-quality problem of centrifuging process concentrate, has the characteristics that simple process, upgrading drop silicon effect is obvious, yield is high.
Description
Technical field
The invention belongs to ferrous metal technical field of beneficiation, and in particular to a kind of simple process, concentrate grade is promoted and silicon
The low-grade difficulty of fine silicate-type that content reducing effect is obvious, yield is high selects red iron rougher concentration upgrading drop silicon technology.
Background technique
With the fast development of steel industry, the iron ore deposit that geological conditions is good, resource grade is high, sorting is good is just close
Exhaustion, and the poor low-grade iron ore resource of washability will become one of the emphasis of technique of preparing research.China's iron ore deposit
It is mainly characterized by " poor ", " thin ", " miscellaneous ", average grade is low, and the iron ore deposit proportion of complicated difficult choosing is larger.It is difficult at present
Select smelting comprehensive utilization technique level not high during iron ore deposit rational exploitation and utilization, equipment falls behind relatively, leads to concentrate grade
It is lower with the rate of recovery, it is difficult to meet the requirement that low cost is smelted.
Dahongshan iron ore is the iron ore mine of the state-of-the-art underground mining scale first in China, the object with unique " 234 "
The features such as property:
" 2 is low " --- Armco magnetic iron ratio is low, secondary concentrate grade is low；
" 3 is close " --- the density of main gangue mineral and iron mineral is close, surface chemical property is close, specific susceptibility
It is close；
" 4 is high " --- silicate content is high, microfine content is high, silicone content is high in iron ore concentrate, iron content is high in tailing.
The red iron composite ore of bloodstone and magnet-to low-grade, fine-grained disseminated grain, weak magnetic, early stage generally mostly use gravity treatment
Technique, since its ore dressing processing capacity is small, ore dressing grade is low, low yield and be gradually eliminated；Later developed floatation process and
High intensity magnetic separation process, but it sorts technical indicator and does not reach satisfactory effect；It picks up low-grade, fine-grained disseminated grain red
Iron ore is to reach purpose that is energy-saving and improving concentrate quality, and ore grinding, sorting process generally use multistage stage grinding, rank
Low intensity magnetic separation-reverse flotation process integration can be used if you need to further increase the quality of magnetic concentrate in the principle process that section sorts.For
The utilization rate of resource is improved, most of dressing plant is to poor iron ore using one section strong magnetic-, two sections of spiral chute techniques or two sections coarse-fine
Spiral chute technique is selected again, and concentrate selection grade is 50~62% again for iron ore poor for weak magnetic, and silicone content is most of exists
6% or so, beneficiation cost is high, generally there was only 5% or so for fine particle yield, has seriously affected concentrate final product quality and resource
Utilization rate.Currently, the classical process for recycling the poor maghemite of particulate in industrial production is low intensity magnetic separation-high intensity magnetic separation-reverse flotation stream
Journey, China's Anshan type lean hematite ore all use this-process, technical indicator is preferable.But the key of stable operation in the industrial production
The strong magnetomechanical highest magnetic induction intensity of equipment is in 1.5T or so, and majority is in 1~1.2T, and the high intensity magnetic separation equipment of this magnetic field strength is to grain
The rate of recovery less than 30 μm of Hematites is spent less than 40%.In addition, due to the low-grade difficulty of the fine silicate-type of Dahongshan select it is red
In iron ore, iron is formed with endoplasm with the structure of phase in chlorite, tourmaline, allochite, biotite, garnet, wherein chlorite
Content is big, and gangue band iron mineral is suitable with ore specific susceptibility, and it is more difficult that high intensity magnetic separation will obtain index；Due to gangue band
Iron, surface chemical property difference is little, no matter top-up, index that anti-floating, high intensity magnetic mineral flotation will get well it is impossible, cause
The concentrate Fe grade of selecting is low, and silicate content is higher, then more difficult if you need to further mention Fe and reducing Si.Therefore, one is explored
Simple, the reliable fine low-grade difficulty of silicate-type of kind selects red iron rougher concentration upgrading drop silicon technology, is to expand fine silicate
The basic road of the low-grade refractory hematite application of type, has important value.
Summary of the invention
It is promoted the purpose of the present invention is to provide a kind of simple process, concentrate grade and silicone content reducing effect is obvious, produces
The high low-grade difficulty of fine silicate-type of rate selects red iron rougher concentration upgrading drop silicon technology.
The present invention includes concentrate every thick, centrifugal jigging process, is specifically included:
A, concentrate is every thick: by concentration being 25~45%, the fine silicic acid that Fe grade is 30~40%, Si grade is 30~40%
The low-grade difficulty of salt form selects red iron rougher concentration ore pulp to be obtained every thick equipment every mine under scalping and every mine in scalping；
B, upgrading drop silicon concentrate and tailings centrifugal jigging: are obtained through centrifugal jigging every mine under scalping by what step A obtained.
The present invention is sorted using concentrate every thick, centrifugal jigging are double, first passes through concentrate every unskilled workman's sequence, abandon part granularity compared with
It is isolated with the bloodstone of the bloodstone of silicate gangue adhesion, package fine grain teeth cloth greatly, while controls concentrate concentration and being reduced to
The zone of reasonableness of centrifugal jigging process had reduced the workload of subsequent centrifugal jigging process not only to improve efficiency, but also has been conducive to be centrifuged
Jigging process obtains preferable sorting index, moreover it is possible to reduce investment cost and operating cost；Especially with high frequency shale shaker every
Slightly, while high-frequency vibration, the effect of isolating of big density fine is also accelerated, keeps heavy material and ore pulp quick
Screening is got off；Then concentrate is sorted every slightly obtaining carrying out centrifugation every mine under scalping using centrifugal jigging process, passes through control
Centrifuge speed and pulp density are realized to the weak magnetic mineral and silicate gangue dissociated in low-grade red iron rougher concentration
It efficiently separates, reaches to bloodstone and part and the adhesion of silicate gangue, the recycling of package fine-grained disseminated grain weak magnetic bloodstone, it is special
It is not the recycling of fine particle size iron ore, to improve the grade of low-grade red iron rougher concentration and reduce impurity, especially reduces
Silicone content, while improving the yield and the rate of recovery of iron ore.The present invention is sorted by concentrate every thick, centrifugal jigging are double, is overcome
The a large amount of purifications of waste water of conventional reverse floatation process and reagent cost are higher, single gravity concentration process yield is low, weak magnetic-centrifuge technique essence
The low-quality problem of mine has the characteristics that simple process, concentrate grade is promoted and silicone content reducing effect is obvious, yield is high.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention；
Fig. 2 is typical process flow schematic diagram of the invention；
Fig. 3 is that exemplary apparatus of the invention contacts figure；
In figure: 1- Pulp pump I, 2- high frequency vibrating fine screen I, 3- high frequency vibrating fine screen II, 4- high frequency vibrating fine screen III, 5- high
Frequency vibration dusting cover IV, 6- centrifugal jig I, 7- centrifugal jig II, 8- centrifugal jig III, 9- centrifugal jig IV, 10- slag
Stock pump II, 11- incline board concentrating box.
Specific embodiment
The present invention is further illustrated below, but the present invention is limited in any way, based on the present invention
Any transformation made by instructing, each falls within protection scope of the present invention.
As shown in Figure 1,2 and 3, the present invention includes concentrate every thick, centrifugal jigging process, is specifically included:
A, concentrate is every thick: by concentration being 25~45%, the fine silicic acid that Fe grade is 30~40%, Si grade is 30~40%
The low-grade difficulty of salt form selects red iron rougher concentration ore pulp to be obtained every thick equipment every mine under scalping and every mine in scalping；
B, upgrading drop silicon concentrate and tailings centrifugal jigging: are obtained through centrifugal jigging every mine under scalping by what step A obtained.
The present invention includes spoil reclaming step, and the spoil reclaming step is that the tailing for obtaining step B imports another way
Recycling concentrate and recycling chats are obtained every thick equipment, what the recycling chats and step A obtained feeds step B every rough concentrate merging
Centrifugal jigging equipment formed it is closed circuit.
The recycling concentrate obtained every mine in scalping and/or spoil reclaming step that step A of the present invention obtains is exported to regrinding
Optional equipment again.
It is that the low-grade difficulty of fine silicate-type is selected red iron that the low-grade difficulty of fine silicate-type, which selects red iron rougher concentration,
Mine enters one section of low intensity magnetic separation, high intensity magnetic separation after passing sequentially through broken, Semi-Autogenous and ball milling, then through two sections of low intensity magnetic separations, high intensity magnetic separations, most
The iron ore concentrate that the tailing obtained again through three sections of low intensity magnetic separations afterwards is successively recycled using high intensity magnetic separation, shaking table equipment again.
The low-grade difficulty of fine silicate-type selects the granularity of red iron rougher concentration are as follows: -0.043mm content >=70%.
It is described every thick equipment be high frequency shale shaker or Magnetic field screening separator.
The high frequency shale shaker is the MICHAEL DRAKE high frequency shale shaker of screen-aperture 0.15mm.
The feed preparation unit size of the high frequency shale shaker are as follows: -0.043mm content >=75%
The centrifugal jigging equipment is cloud tin formula centrifugal jig, Kelsey formula centrifugal jig, the centrifugation of Pyradyne formula
Jigging machine, Indeco formula centrifugal jig or Altair formula centrifugal jig.
The centrifugal jigging equipment be engine speed 500r/min, pulsation revolving speed 1418r/min, revolution speed 180r/min,
The KCJ1802 type centrifugal jig of speed of agitator 460r/min, 0.5~0.6MPa of hydraulic pressure, stroke 2.4mm.
The step A obtain every mine pulp density under scalping be 20~40%.
Embodiment 1
S100: it is 40.0% that elder brother's steel Dahongshan two, which is selected factory's concentration, Fe grade is 37.23%, Si grade is 31.4%, granularity
Red iron is selected to be sintered concentrate pulp for the -0.043mm low-grade difficulty of fine silicate-type for accounting for weight percent 85%, by the mine of 57t/h
Amount feeds the MICHAEL DRAKE HGZS-55-1007 type high frequency shale shaker that screen-aperture is 0.15mm, and obtaining concentration is 29.0%, Fe grade
Be 24.47% for 40.67%, Si grade, mine amount is 54.15t/h every mine under scalping, and obtain concentration be 90.0%, Fe grade
Be 43.26% for 16.0%, Si grade, mine amount is 2.85t/h every mine in scalping, it is dense that gained every mine in scalping is incorporated to plant tailing
Contracting processing.
S200: engine speed 500r/min, pulsation revolving speed 1418r/min, pump are fed every mine under scalping by what S100 was obtained
The KCJ1802 type centrifugal jig of revolving speed 180r/min, speed of agitator 460r/min, hydraulic pressure 0.5-0.6MPa, stroke 2.4mm,
It obtains concentration is 20.0%, Fe grade is 62.5%, Si grade is 3.0%, mine amount is 16.25t/h concentrate and concentration is
17.75%, the tailing that Fe grade is 24.64%, Si grade is 33.67%, mine amount is 37.91t/h, gained tailing and selected factory's tail
Mine concentration.
Embodiment 2
S100: it is 30.0% that elder brother's steel Dahongshan three, which is selected factory's concentration, Fe grade is 40.0%, Si grade is 34.0%, granularity
Red iron rougher concentration ore pulp is selected for -0.043mm low-grade the difficulty of fine silicate-type for accounting for weight percent 75%, by 38.0t/h's
Mine amount feeds the MICHAEL DRAKE HGZS-55-1007 type high frequency shale shaker that screen-aperture is 0.15mm, and obtaining concentration is 29.0%, Fe product
Position is 40.74%, Si grade is 20.2%, mine amount is 36.86t/h every mine under scalping, and obtaining concentration is 90.0%, Fe product
Position is 16.0%, Si grade is 46.9%, mine amount is 1.14t/h every mine in scalping, and gained is also incorporated into every mine in scalping and selects factory's tail
Mine concentration.
S200: feeding KCJ1802 formula centrifugal jig every mine under scalping for what S100 was obtained, and obtaining concentration is 20%, Fe product
Position is the 62.5%, concentrate that Si grade is 3.0%, mine amount is 14.74t/h and concentration is 13.7%, Fe grade is 26.24%, Si
The tailing that grade is 31.65%, mine amount is 22.12t/h, gained tailing are incorporated to plant tailing concentration.
Embodiment 3
S100: it is 40.0% that elder brother's steel Dahongshan two, which is selected factory's concentration, Fe grade is 35.0%, Si grade is 35.41%, granularity
Red iron is selected to be sintered concentrate pulp for the -0.043mm low-grade difficulty of fine silicate-type for accounting for weight percent 85%, by 57.0t/h's
Mine amount feeds the MICHAEL DRAKE HGZS-55-1007 type high frequency shale shaker I that screen-aperture is 0.15mm, and obtaining concentration is 29.0%, Fe
Grade is 36.0%, Si grade is 24.47%, mine amount is 54.15t/h every mine I under scalping, and obtaining concentration is 90.0%, Fe
Grade is 16.0%, Si grade is 43.26%, mine amount is 2.85t/h every mine I in scalping；
It is 30.0% that elder brother's steel Dahongshan three, which is also selected factory's concentration, simultaneously, Fe grade is 40.0%, Si grade is 31.0%, granularity
Red iron rougher concentration ore pulp is selected for -0.043mm low-grade the difficulty of fine silicate-type for accounting for weight percent 75%, by 38.0t/h's
Mine amount feeds the MICHAEL DRAKE HGZS-55-1007 type high frequency shale shaker II that screen-aperture is 0.15mm, and obtaining concentration is 29.0%, Fe
Grade is 40.74%, Si grade is 20.2%, mine amount is 36.86t/h every mine II under scalping, and obtain concentration be 90.0%,
Fe grade is 16.0%, Si grade is 46.9%, mine amount is 1.14t/h every mine II in scalping, gained every mine II in scalping with every
Mine I is incorporated to plant tailing concentration after merging in scalping.
S200: feeding KCJ1802 centrifugal jig I every mine I under scalping for what S100 was obtained, and obtaining concentration is 20%, Fe product
Position is 62.5%, the concentrate I that Si grade is 3.0%, mine amount is 16.25t/h and concentration are 17.75%, Fe grade is 24.64%,
The tailing I that Si grade is 33.67%, mine amount is 37.91t/h；
KCJ1802 centrifugal jig II is fed every mine II under scalping by what S100 was obtained, obtaining concentration is 20%, Fe grade
For the 62.5%, concentrate II that Si grade is 3.0%, mine amount is 14.74t/h and concentration be 13.7%, Fe grade is 26.24%, Si
The tailing II that grade is 31.65%, mine amount is 22.12t/h, gained tailing I and tailing II are incorporated to plant tailing concentration, essence
Mine I and concentrate II are incorporated into pipeline concentrate pool.
Embodiment 4
S100: factory and two is selected to select factory's low-grade difficulty of fine silicate-type that red iron is selected to be sintered concentrate pulp elder brother's steel Dahongshan one
After merging, formed concentration be 35.0%, Fe grade is 37.0%, Si grade is 38.63%, granularity be -0.043mm account for weight percent
The low-grade difficulty of fine silicate-type than 72.61% selects red iron sintering concentrate pulp, then shunts respectively by the mine amount of 51.5t/h
HGZS-55-1007 high frequency vibrating fine screen I and HGZS-55-1007 high frequency vibrating fine screen II are fed, respectively obtaining concentration is
27.8%, Fe grade is 38.39%, Si grade is 23.17%, mine amount is 48.83t/h every mine I under scalping and every mine under scalping
II, and obtain that concentration is 90.0%, Fe grade is 15.5%, Si grade is 6.85%, mine amount is 2.67t/h every mine I in scalping
With every mine II in scalping, export every mine I in scalping and after mine II in scalping merges to regrinding and reconcentration.
S200: KCJ1802 centrifugal jig I and KCJ1802 centrifugation jump are fed respectively every mine I under scalping by what S100 was obtained
Machine II is eliminated, the concentrate I and concentrate that concentration is 19.7%, Fe grade is 63.3%, Si grade is 3.1%, mine amount is 15.96t/h are obtained
II and concentration is 15.36%, Fe grade is 25.33%, Si grade is 32.63%, mine amount is 34.87t/h tailing I and tailing
II, wherein concentrate I and concentrate II merge output to pipeline concentrate pool；
KCJ1802 centrifugal jig III and KCJ1802 centrifugal jigging are fed respectively every mine II under scalping by what S100 was obtained
Machine IV obtains the concentrate III and concentrate that concentration is 19.7%, Fe grade is 63.3%, Si grade is 3.1%, mine amount is 15.96t/h
IV and concentration is 15.36%, Fe grade is 25.33%, Si grade is 32.63%, mine amount is 34.87t/h tailing III and tail
Mine IV, wherein concentrate III and concentrate IV merge output to pipeline concentrate pool.
S310: it is shunted after tailing I, tailing II, tailing III and tailing IV are merged and feeds HGZS-55-1007 high-frequency vibration
Dusting cover III and HGZS-55-1007 high frequency vibrating fine screen IV are respectively obtained every mine III under scalping and every mine IV under scalping, and
To every mine III in scalping and every mine IV in scalping, will every mine III in scalping and after mine IV in scalping merges output to being regrinded again
Choosing.
S320: I He of KCJ1802 centrifugal jig will be fed respectively every mine I under scalping every distinguished and admirable be incorporated to of mine III under scalping
KCJ1802 centrifugal jig II obtains concentrate I ' and concentrate II ' and tailing I ' and tailing II ', wherein concentrate I ' and concentrate
It exports after II ' merging to pipeline concentrate pool；KCJ1802 centrifugal jigging will be fed respectively with every mine II under scalping every mine IV under scalping
Machine III and KCJ1802 centrifugal jig IV obtain concentrate III ' and concentrate IV ' and tailing III ' and tailing IV ', wherein concentrate
III ' feeds after merging with output after the merging of concentrate IV ' to pipeline concentrate pool, tailing I ', tailing II ', tailing III ' and tailing IV '
HGZS-55-1007 high frequency shale shaker III and HGZS-55-1007 high frequency shale shaker IV form closed loop.
Claims (5)
1. a kind of low-grade difficulty of fine silicate-type selects red iron rougher concentration upgrading drop silicon technology, it is characterised in that the fine silicon
The low-grade difficulty of hydrochlorate type select red iron rougher concentration be the low-grade refractory hematite of fine silicate-type is passed sequentially through it is broken, half from
Enter one section of low intensity magnetic separation, high intensity magnetic separation after mill and ball milling finally to obtain through three sections of low intensity magnetic separations again then through two sections of low intensity magnetic separations, high intensity magnetic separations
The iron ore concentrate that the tailing arrived is successively recycled using high intensity magnetic separation, shaking table equipment again, it is characterised in that it includes concentrate that silicon technology drops in upgrading
Every thick, centrifugal jigging process, specifically include:
A, concentrate is every thick: be 25 ~ 45%, Fe grade by concentration being the low product of fine silicate-type that 30 ~ 40%, Si grade is 30 ~ 40%
Position difficulty selects red iron rougher concentration ore pulp to be obtained every thick equipment every mine under scalping and every mine in scalping, every mine pulp density under scalping
It is 20 ~ 40%；It is -0.043mm content >=70% that the low-grade difficulty of fine silicate-type, which selects the granularity of red iron rougher concentration, described
It is high frequency shale shaker every thick equipment, high frequency shale shaker is the MICHAEL DRAKE high frequency shale shaker of screen-aperture 0.15mm；
B, centrifugal jigging: by step A obtain every mine under scalping through centrifugal jigging obtain upgrading drop silicon concentrate and tailings, it is described from
Heartbeat eliminates equipment as engine speed 500r/min, pulsation revolving speed 1418r/min, revolution speed 180r/min, speed of agitator 460r/
The KCJ1802 type centrifugal jig of min, 0.5 ~ 0.6MPa of hydraulic pressure, stroke 2.4mm.
2. silicon technology drops in upgrading according to claim 1, it is characterised in that further include spoil reclaming step, the tailing is again
Selecting step is that the tailing importing another way for obtaining step B obtains recycling concentrate every thick equipment and recycles chats, in the recycling
The centrifugal jigging equipment for feeding step B every rough concentrate merging that mine and step A obtain forms closed circuit.
3. silicon technology drops in upgrading according to claim 2, it is characterised in that step A obtain every mine in scalping and/or tail
The recycling concentrate that mine selects step to obtain again, which exports, gives regrinding and reconcentration equipment.
4. silicon technology drops in upgrading according to claim 1, it is characterised in that the feed preparation unit size of the high frequency shale shaker are as follows:-
0.043mm content >=75%.
5. silicon technology drops in upgrading according to claim 1, it is characterised in that the centrifugal jigging equipment is the centrifugation of cloud tin formula
Jigging machine, Kelsey formula centrifugal jig, Pyradyne formula centrifugal jig, Indeco formula centrifugal jig or Altair formula from
Heart jigging machine.
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| CN204724312U (en) * | 2015-06-26 | 2015-10-28 | 玉溪大红山矿业有限公司 | The high silicon bloodstone that silicon falls in a kind of upgrading smelts preprocessing system |
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