CN104785355A - Skarn type tungsten ore beneficiation method - Google Patents
Skarn type tungsten ore beneficiation method Download PDFInfo
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Abstract
The invention discloses a skarn type tungsten ore beneficiation method. Tungsten concentrates are finally obtained through the steps of raw ore levigation, quick floatation of coarse particles, middling regrinding, quick scheelite flotation, medium grain floatation, fine grinding, fine grain floatation, centrifugal reselection of middlings and the like. Separation indexes of separated skarn type tungsten ore are good, and the grade and recovery rate of the tungsten concentrates are high. The skarn type tungsten ore beneficiation method is stable, efficient, good in separation effect, high in adaptability, high in recovery index, capable of achieving low production cost and suitable for application and popularization.
Description
Technical field
The invention belongs to ore dressing field, particularly relate to a kind of beneficiation method of skarn type tungsten ore.
Background technology
Tungsten ore is contained in Skarn Deposit more, cause the gangue mineral kind complexity derived in ore body, the gangue mineral content such as typical mica, feldspar, fluorite, allochite, chlorite are high and floatability good, high adsorption capacity and argillization is serious, easily enter tungsten Beneficiation flowsheet, be difficult to dispersion suppress, the ore dressing affecting tungsten is reclaimed; Meanwhile, most tungsten ore Beneficiation Feed Grade is lower and disseminated grain size is uneven, causes tungsten mine technique to be difficult to select.Based on this type of reason, existing tungsten ore mainly adopts two kinds of methods to reclaim, one based on flotation " Peter Nuo Fufa ", sodium carbonate adjusts agent, inhibitor made by waterglass, aliphatic acid carries out normal temperature flotation as collecting agent in the method employing, underflow heating concentration is carried out after obtaining the tungsten rough concentrate of grade higher (about 2%), the method not only Yin Jiawen flotation causes high cost, and cause selected pressure excessive because of gangue mineral character complexity, thus set up in flow process and put two mine tailing mouth last persons, cause tungsten to lose seriously in mine tailing; Two is " heavy-floating " process integrations based on gravity treatment, the method not only because tungsten ore Beneficiation Feed Grade is low, complicated and cause the gravity treatment rate of recovery low with the embedding cloth relation of gangue mineral, and the tungsten slurry produced in Beneficiation flowsheet is difficult to sorting, current ore dressing field there is no ripe technology to break through the bottleneck of tungsten slurry high efficiente callback, causes the tungsten ore comprehensive recovery of the method sorting on the low side.Therefore, be synthetical recovery skarn type tungsten ore resource, be now badly in need of a kind of interference can getting rid of gangue mineral, again can, the characteristic such as disseminated grain size uneven low according to the Beneficiation Feed Grade of skarn type tungsten ore tungsten ore and the beneficiation method of high efficiente callback tungsten ore.
Chinese invention patent " a kind of beneficiation method of low-grade scheelite ", patent No. CN101869876A discloses a kind of beneficiation method of low-grade scheelite, it proposes to adopt gravity treatment to throw tail in advance, gravity concentrate removes iron mineral and sulphide ore with magnetic separation, floatation again, reclaims scheelite more afterwards with floatation of heating.Although the method adopts gravity separation method to be stripped of part mica group gangue mineral in advance, but also have lost a large amount of fine fraction scheelite simultaneously, described in this patent working case, in gravity tailings, tungsten loss rate is up to 15 ~ 30%, to such an extent as to the white tungsten fine ore rate of recovery only 50 ~ 63%.Therefore, this patent is not high to the scheelite efficiency of separation, and the scope of application is narrower.
Summary of the invention
The problem such as large for the gangue mineral impact existed in the existing technique of preparing of skarn type tungsten ore, sorting difficulty is high, the efficiency of separation is low, flotation collecting weak effect, comprehensive recovery are not high, the object of the present invention is to provide the beneficiation method of a kind of stable, efficient, good separation effect, the skarn type tungsten ore that adaptable, recovery index is high, production cost is low.
The present invention adopts following technical scheme:
A beneficiation method for skarn type tungsten ore, comprises the following steps:
(1) skarn type tungsten ore raw ore is taked, levigate; Wherein mog is that the content of-0.1mm accounts for 55 ~ 60% of total amount;
(2) ore pulp after levigate enters graded operation, obtains the coarse grain product of+0.1mm and the fine particle product of-0.1mm; Wherein partition size is 0.1mm;
(3) the coarse grain product of+0.1mm step (2) obtained roughly selects operation soon, obtains fast selected concentrate and fast rougher tailings; Wherein roughly selecting working technology condition is soon: adding dispersant sodium carbonate amount is 500 ~ 800g/t, action time is 4 ~ 5min, inhibitor waterglass consumption is 1200 ~ 1500g/t, action time is 4 ~ 5min, collecting agent SA leftover bits and pieces consumption is 80 ~ 120g/t, and action time is 3 ~ 4min;
(4) the fast rougher concentration that step (3) obtains is carried out fast selected operation, obtain fast selected tungsten concentrate and fast selected chats, fast selected middling recurrence roughly selects operation soon to last layer; Wherein fast selected working technology condition is: adding inhibitor waterglass consumption is 300 ~ 400g/t, and action time is 4 ~ 5min;
(5) the fast rougher tailings that step (3) obtains is regrinded, obtain product of regrinding; Mog of wherein regrinding is that the content of-0.1mm accounts for 80 ~ 90% of total amount;
(6) product of regrinding that step (5) obtains is carried out classification, obtain the coarse grain product of+0.1mm and the fine particle product of-0.1mm, the coarse grain product of+0.1mm is back to the Regrinding of last layer; Wherein partition size is 0.1mm;
(7)-0.1mm fine particle product the merging that-0.1mm fine particle product step (2) obtained and step (6) obtain carries out roughly selecting operation, obtains rougher concentration and rougher tailings; Wherein roughly selecting working technology condition is: adding dispersant sodium carbonate amount is 800 ~ 1200g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 1200 ~ 1500g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 150 ~ 250g/t, and action time is 3 ~ 4min;
(8) rougher concentration that step (7) obtains is carried out a selected operation, obtain single-minded concentrate and single-minded chats; Wherein a selected working technology condition is: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(9) the single-minded concentrate that step (8) obtains is carried out selected two operations, obtain smart two concentrate and smart two chats; Wherein selected two working technology conditions are: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(10) essence two concentrate that step (9) obtains is carried out selected three operations, obtain selected tungsten concentrate and smart three chats, smart three middling recurrence are to a selected operation; Wherein selected three working technology conditions are: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(11) essence two chats that single-minded chats step (8) obtained and step (9) obtain carries out centrifugal reselection operation, and obtain gravity concentrate I and gravity tailings I, gravity concentrate I is back to and roughly selects operation; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 350 ~ 400r/min, washing water quantity 1 ~ 3L/min;
(12) rougher tailings that step (7) obtains is carried out scanning an operation, obtain sweeping a concentrate and sweep a mine tailing, sweep a concentrate and be back to and roughly select operation; Wherein scanning a working technology condition is: adding dispersant sodium carbonate amount is 300 ~ 500g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 300 ~ 500g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 50 ~ 80g/t, and action time is 3 ~ 4min;
(13) concentrate of sweeping step (12) obtained carries out scanning two operations, obtains sweeping two concentrate and sweeps two mine tailings, sweeps two concentrate and is back to and scans an operation; Wherein scanning two working technology conditions is: adding dispersant sodium carbonate amount is 150 ~ 300g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 150 ~ 300g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 20 ~ 50g/t, and action time is 3 ~ 4min;
(14) what gravity tailings I step (11) obtained and step (13) obtained sweep, and two mine tailings merge carries out fine grinding operation, obtain fine grinding product; Wherein fine grinding working technology condition is: adding sodium lignosulfonate consumption is 500 ~ 800g/t, and inhibitor waterglass consumption is 400 ~ 600g/t, and mog is that the content of-0.074mm accounts for 85 ~ 90% of total amount;
(15) the fine grinding product that step (14) obtains is carried out classification, obtain the coarse grain product of+0.074mm and the fine particle product of-0.074mm, the coarse grain product of+0.074mm is back to the fine grinding operation of last layer; Wherein partition size is 0.074mm;
(16)-0.074mm the fine particle product that step (15) obtains is roughly selected operation slowly, obtain slow rougher concentration and slow rougher tailings; Wherein roughly selecting working technology condition is slowly: adding dispersant sodium carbonate amount is 700 ~ 1000g/t, action time is 4 ~ 5min, and inhibitor dosage of pectin is 400 ~ 600g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 200 ~ 300g/t, and action time is 3 ~ 4min;
(17) the slow rougher tailings that step (16) obtains is swept an operation slowly, swept a concentrate slowly and sweep a mine tailing slowly; Wherein sweeping a working technology condition is slowly: adding dispersant sodium carbonate amount is 200 ~ 300g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 200 ~ 400g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 70 ~ 100g/t, and action time is 3 ~ 4min;
(18) mine tailing of sweeping slowly that step (17) obtains is swept two operations slowly, swept two concentrate slowly and sweep two mine tailings slowly; Wherein sweeping two working technology conditions is slowly: adding dispersant sodium carbonate amount is 100 ~ 150g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 100 ~ 200g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 20 ~ 30g/t, and action time is 3 ~ 4min;
(19) the slow rougher concentration that step (16) obtains is carried out a selected operation slowly, obtain slow single-minded concentrate and slow single-minded chats; Wherein a selected working technology condition is slowly: adding inhibitor dosage of pectin is 200 ~ 300g/t, and action time is 4 ~ 5min
(20) the slow single-minded concentrate that step (19) obtains is carried out selected two operations slowly, obtain smart two concentrate and slowly smart two chats slowly; Wherein selected two working technology conditions are slowly: adding inhibitor dosage of pectin is 200 ~ 300g/t, and action time is 4 ~ 5min;
(21) centrifugal reselection operation is carried out in the slow smart two chats merging that slow single-minded chats step (19) obtained and step (20) obtain, obtain gravity concentrate II and gravity tailings II, wherein gravity concentrate II is back to and roughly selects operation slowly; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 400 ~ 450r/min, washing water quantity 1 ~ 2L/min;
(22) what gravity tailings II step (21) obtained and step (18) obtained sweeps two mine tailings merging slowly, obtains total mine tailing;
(23) slow smart two concentrate that step (20) obtains are carried out selected three operations slowly, obtain smart three concentrate and slowly smart three chats slowly; Wherein selected three working technology conditions are slowly: adding inhibitor dosage of pectin is 100 ~ 150g/t, and action time is 4 ~ 5min;
(24) slow smart three chats that step (23) obtains are carried out essence and sweep an operation, obtain essence and sweep a concentrate and essence sweeps a mine tailing, wherein essence is swept a concentrate and is back to slow single-minded operation, and essence is swept a mine tailing and is back to and sweeps an operation slowly; Wherein essence is swept a working technology condition and is: adding inhibitor dosage of pectin is 50 ~ 100g/t, and action time is 4 ~ 5min, and adding collecting agent CA-02 consumption is 50-80g/t, and action time is 3 ~ 4min;
(25) slow smart three concentrate that step (23) obtains are carried out smart four operations slowly, obtain smart four concentrate and slowly smart four mine tailings slowly; Wherein selected four working technology conditions are slowly: adding inhibitor dosage of pectin is 100 ~ 150g/t, and action time is 4 ~ 5min;
(26) slow smart four mine tailings that step (25) obtains are carried out essence and sweep two operations, obtain essence and sweep two concentrate and essence sweeps two mine tailings, wherein essence is swept two concentrate and is back to smart two operations slowly, and essence is swept two mine tailings and is back to and sweeps two operations slowly; Wherein essence is swept two working technology conditions and is: adding inhibitor dosage of pectin is 40 ~ 80g/t, and action time is 4 ~ 5min, and adding collecting agent CA-02 consumption is 20-50g/t, and action time is 3 ~ 4min;
(27) slow smart four concentrate that the selected tungsten concentrate that fast selected tungsten concentrate step (4) obtained, step (10) obtain and step (25) obtain merge, and obtain final tungsten concentrate.
Preferably, described collecting agent CA-02 is that three is according to mass ratio (1.5 ~ 2.5) with 2-hydroxyl-3 naphthalene first hydroximic acid, 1,1,2-octyl tricarboxylic, 1-phenyl-2-mercaptobenzoimidazole for raw material: the proportioning of 1: 1 mixing, stirring forms.
Preferably, described collecting agent CA-02 is with 2-hydroxyl-3 naphthalene first hydroximic acid, 1,1,2-octyl tricarboxylic, 1-phenyl-2-mercaptobenzoimidazole for raw material, three according to mass ratio 2: 1: 1 proportioning mixes, stirring forms.
The present invention overcomes the deficiencies in the prior art, provides a kind of beneficiation method of skarn type tungsten ore, has following technical characterstic:
(1) uneven for skarn type tungsten ore disseminated grain size, monomer dissociation differs and intergrowth gangue mineral are easy to the characteristics such as argillization, the present invention have developed with+0.1mm,-0.1+0.074mm,-0.074mm three grades are the boundary section of sorting, with corase grind, regrind, fine grinding three kinds of grinding modes are the tungsten mineral substep section of dissociating, get a foothold with SA, oleic acid, CA-02 tri-kinds of collecting agents are the efficient separation new method of tungsten mineral stepped-flotation separation collecting agent, both solved tungsten mineral because of disseminated grain size uneven, what monomer dissociation differed and caused sorts not thoroughly problem, solve again in tungsten mineral dissociation process the difficult problem being easy to pulverize, also avoid the interference that skarn type gangue mineral argillization when tungsten sorts is serious simultaneously, three ranks according to the tungsten mineral sorting of developing coordinate corresponding grinding mode, and specific aim uses suitable collecting agent intensified Daqu, achieves the high efficiente callback of skarn type tungsten mineral.This creationary thought and complete set technology are not integrally disclosed in skarn type tungsten mine technical field and are not easy to be conceived yet, and are a kind of tungsten mine methods of stable, efficient, good separation effect.
(2) argillization is easy to for skarn type tungsten mineral gangue mineral in fine fraction floatation process, easily be placed on tungsten mineral surface at floatation operation adsorption cover, affect the difficult problems such as tungsten mineral flotation recovery, the present invention works in coordination with ore grinding and pretreatment fine mineral at fine grinding operation interpolation sodium lignosulfonate and waterglass, both the problem of the excessive argillization of gangue mineral in fine grinding process had been avoided, disperse again the excessive absorption on tungsten mineral surface after gangue mineral fine grinding, also improve grinding efficiency simultaneously, achieve the high efficiente callback of particulate tungsten mineral.Add efficient medicament from fine grinding angle and work in coordination with ore grinding and pretreatment, thus solve the recovery of particulate tungsten mineral and the problem of gangue mineral interference, this inventive concept and technology are that current skarn type tungsten mine field is not disclosed and is not easy to be conceived yet.
(3) for particulate tungsten mineral (particularly tungsten mineral surface by gangue mineral attachment after) not easily by this difficult problem of the selective collecting of traditional collecting agent, this invention exploits high selectivity particulate tungsten mineral collecting agent CA-02, achieve the high efficiente callback of skarn type particulate tungsten mineral; Meanwhile, as inhibitor selective reinforcement carries out with pectin to the particulate tungsten mineral floatingly selected selected, achieve the high accuracy sorting of skarn type tungsten mineral.
(4) complicated for chats character in skarn type tungsten mineral Beneficiation flowsheet, be easy to after Returning process worsen the difficult problems such as flow process, the present invention does not scan in the coarse grain section of sorting of+0.1mm, only carries out and roughly selects soon and fast selected operation, thus reclaims a part of high-grade tungsten concentrate fast; Other section of grain-by-grain seed selection in-0.1+0.074mm, is merged into row centrifugal reselection by the chats product of selected one and selected 2 two kinds of character complexity, and the gravity concentrate that the character of acquisition is close returns middle grain flotation flowsheet, and gravity tailings feeds fine grinding operation selects again; In-0.074mm particulate the section of sorting, slowly chats product the most complicated for single-minded and slow smart 2 two kinds of character is also adopted the mode process of centrifugal reselection after merging, and to slow essence three with the chats employing that obtains of smart four operations is selected slowly sweeps operation and select tungsten mineral wherein respectively again, essence is scanned rear concentrate and is returned cleaning technological flowasheet, and mine tailing returns scans flow process slowly.The Treatment of Middling new method that the present invention adopts well solves the difficult problem that skarn type tungsten mineral flow process is easy to worsen, and has both achieved abundant, thorough, the high efficiente callback of particulate tungsten mineral, the interference of the middling recurrence flow process avoided again.Achieve the overall efficient separation of skarn type tungsten mineral.
Compared with prior art, the invention has the advantages that:
1. solve that skarn type tungsten mineral disseminated grain size is uneven, the impact of monomer dissociation not a pair sorting, improve the sorting index of tungsten ore.
2. solve the impact of skarn type gangue mineral on tungsten ore sorting, improve the separating effect of skarn type tungsten ore.
3. solve a difficult problem for the selective collecting difficulty of particulate tungsten mineral, improve concentrate grade and comprehensive recovery.
Accompanying drawing explanation
Fig. 1 is the process chart of the beneficiation method of a kind of skarn type tungsten ore of the present invention;
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Collecting agent CA-02 in the present invention is that three is according to mass ratio (1.5 ~ 2.5) with 2-hydroxyl-3 naphthalene first hydroximic acid, 1,1,2-octyl tricarboxylic, 1-phenyl-2-mercaptobenzoimidazole for raw material: the proportioning of 1: 1 mixing, stirring forms.
Embodiment 1
By 150g 2-hydroxyl-3 naphthalene first hydroximic acid, 100g 1,1,2-octyl tricarboxylic, the mixing of 100g 1-phenyl-2-mercaptobenzoimidazole, normal temperature and pressure makees container with beaker, magnetic stirrer 100 ~ 120min obtains collecting agent CA-02.
Embodiment 2
By 250g 2-hydroxyl-3 naphthalene first hydroximic acid, 100g 1,1,2-octyl tricarboxylic, the mixing of 100g 1-phenyl-2-mercaptobenzoimidazole, normal temperature and pressure makees container with beaker, magnetic stirrer 100 ~ 120min obtains collecting agent CA-02.
Embodiment 3
By 200g 2-hydroxyl-3 naphthalene first hydroximic acid, 100g 1,1,2-octyl tricarboxylic, the mixing of 100g 1-phenyl-2-mercaptobenzoimidazole, normal temperature and pressure makees container with beaker, magnetic stirrer 100 ~ 120min obtains collecting agent CA-02.
Embodiment 4
The raw ore tungstenic 0.19% sorted, in ore, tungsten mineral is mainly composed with the form of scheelite and is stored in skarn type gangue mineral, and the embedding cloth feature of mineral is complicated, and disseminated grain size is uneven, and monomer dissociation is poor.Adopt tungsten concentrate tungstenic 45.22%, the rate of recovery 52.37% that existing skarn type floatation of tungsten mineral technology obtains.
Adopt the collecting agent CA-02 in skarn type tungsten mine new method of the present invention and embodiment 3 to select low-grade skarn type tungsten ore to carry out sorting to this complicated difficult, it sorts step and is:
(1) skarn type tungsten ore raw ore is taked, levigate; Wherein mog is that the content of-0.1mm accounts for 58% of total amount;
(2) ore pulp after levigate enters graded operation, obtains the coarse grain product of+0.1mm and the fine particle product of-0.1mm; Wherein partition size is 0.1mm;
(3) the coarse grain product of+0.1mm step (2) obtained roughly selects operation soon, obtains fast selected concentrate and fast rougher tailings; Wherein roughly selecting working technology condition is soon: adding dispersant sodium carbonate amount is 600g/t, and action time is 5min, and inhibitor waterglass consumption is 1200g/t, and action time is 5min, and collecting agent SA leftover bits and pieces consumption is 100g/t, and action time is 3min;
(4) the fast rougher concentration that step (3) obtains is carried out fast selected operation, obtain fast selected tungsten concentrate and fast selected chats, fast selected middling recurrence roughly selects operation soon to last layer; Wherein fast selected working technology condition is: adding inhibitor waterglass consumption is 300g/t, and action time is 5min;
(5) the fast rougher tailings that step (3) obtains is regrinded, obtain product of regrinding; Mog of wherein regrinding is that the content of-0.1mm accounts for 86% of total amount;
(6) product of regrinding that step (5) obtains is carried out classification, obtain the coarse grain product of+0.1mm and the fine particle product of-0.1mm, the coarse grain product of+0.1mm is back to the Regrinding of last layer; Wherein partition size is 0.1mm;
(7)-0.1mm fine particle product the merging that-0.1mm fine particle product step (2) obtained and step (6) obtain carries out roughly selecting operation, obtains rougher concentration and rougher tailings; Wherein roughly selecting working technology condition is: adding dispersant sodium carbonate amount is 1000g/t, and action time is 5min, and inhibitor waterglass consumption is 1300g/t, and action time is 4min, and collecting agent oleic acid consumption is 200g/t, and action time is 3min;
(8) rougher concentration that step (7) obtains is carried out a selected operation, obtain single-minded concentrate and single-minded chats; Wherein a selected working technology condition is: adding inhibitor waterglass consumption is 400g/t, and action time is 4min;
(9) the single-minded concentrate that step (8) obtains is carried out selected two operations, obtain smart two concentrate and smart two chats; Wherein selected two working technology conditions are: adding inhibitor waterglass consumption is 400g/t, and action time is 4min;
(10) essence two concentrate that step (9) obtains is carried out selected three operations, obtain selected tungsten concentrate and smart three chats, smart three middling recurrence are to a selected operation; Wherein selected three working technology conditions are: adding inhibitor waterglass consumption is 450g/t, and action time is 5min;
(11) essence two chats that single-minded chats step (8) obtained and step (9) obtain carries out centrifugal reselection operation, and obtain gravity concentrate I and gravity tailings I, gravity concentrate I is back to and roughly selects operation; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 380r/min, washing water quantity 2L/min
(12) rougher tailings that step (7) obtains is carried out scanning an operation, obtain sweeping a concentrate and sweep a mine tailing, sweep a concentrate and be back to and roughly select operation; Wherein scanning a working technology condition is: adding dispersant sodium carbonate amount is 400g/t, and action time is 5min, and inhibitor waterglass consumption is 400g/t, and action time is 5min, and collecting agent oleic acid consumption is 60g/t, and action time is 3min;
(13) concentrate of sweeping step (12) obtained carries out scanning two operations, obtains sweeping two concentrate and sweeps two mine tailings, sweeps two concentrate and is back to and scans an operation; Wherein scanning two working technology conditions is: adding dispersant sodium carbonate amount is 200g/t, and action time is 4min, and inhibitor waterglass consumption is 200g/t, and action time is 5min, and collecting agent oleic acid consumption is 30g/t, and action time is 3min;
(14) what gravity tailings I step (11) obtained and step (13) obtained sweep, and two mine tailings merge carries out fine grinding operation, obtain fine grinding product; Wherein fine grinding working technology condition is: adding sodium lignosulfonate consumption is 600g/t, and waterglass consumption is 500g/t, and mog is that the content of-0.074mm accounts for 90% of total amount;
(15) the fine grinding product that step (14) obtains is carried out classification, obtain the coarse grain product of+0.074mm and the fine particle product of-0.074mm, the coarse grain product of+0.074mm is back to the fine grinding operation of last layer; Wherein partition size is 0.074mm;
(16)-0.074mm the fine particle product that step (15) obtains is roughly selected operation slowly, obtain slow rougher concentration and slow rougher tailings; Wherein roughly selecting working technology condition is slowly: adding dispersant sodium carbonate amount is 800g/t, and action time is 5min, and inhibitor dosage of pectin is 500g/t, and action time is 5min, and collecting agent CA-02 consumption is 250g/t, and action time is 3min;
(17) the slow rougher tailings that step (16) obtains is swept an operation slowly, swept a concentrate slowly and sweep a mine tailing slowly; Wherein sweeping a working technology condition is slowly: adding dispersant sodium carbonate amount is 250g/t, and action time is 5min, and inhibitor waterglass consumption is 300g/t, and action time is 5min, and collecting agent CA-02 consumption is 80g/t, and action time is 3min;
(18) mine tailing of sweeping slowly that step (17) obtains is swept two operations slowly, swept two concentrate slowly and sweep two mine tailings slowly; Wherein sweeping two working technology conditions is slowly: adding dispersant sodium carbonate amount is 150g/t, and action time is 5min, and inhibitor waterglass consumption is 150g/t, and action time is 5min, and collecting agent CA-02 consumption is 25g/t, and action time is 3min;
(19) the slow rougher concentration that step (16) obtains is carried out a selected operation slowly, obtain slow single-minded concentrate and slow single-minded chats; Wherein a selected working technology condition is slowly: adding inhibitor dosage of pectin is 250g/t, and action time is 5min;
(20) the slow single-minded concentrate that step (19) obtains is carried out selected two operations slowly, obtain smart two concentrate and slowly smart two chats slowly; Wherein selected two working technology conditions are slowly: adding inhibitor dosage of pectin is 250g/t, and action time is 5min;
(21) centrifugal reselection operation is carried out in the slow smart two chats merging that slow single-minded chats step (19) obtained and step (20) obtain, obtain gravity concentrate II and gravity tailings II, wherein gravity concentrate II is back to and roughly selects operation slowly; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 450r/min, washing water quantity 1.5L/min;
(22) what gravity tailings II step (21) obtained and step (18) obtained sweeps two mine tailings merging slowly, obtains total mine tailing;
(23) slow smart two concentrate that step (20) obtains are carried out selected three operations slowly, obtain smart three concentrate and slowly smart three chats slowly; Wherein selected three working technology conditions are slowly: adding inhibitor dosage of pectin is 130g/t, and action time is 5min;
(24) slow smart three chats that step (23) obtains are carried out essence and sweep an operation, obtain essence and sweep a concentrate and essence sweeps a mine tailing, wherein essence is swept a concentrate and is back to slow single-minded operation, and essence is swept a mine tailing and is back to and sweeps an operation slowly; Wherein essence is swept a working technology condition and is: adding inhibitor dosage of pectin is 80g/t, and action time is 5min, and adding collecting agent CA-02 consumption is 60g/t, and action time is 3min;
(25) slow smart three concentrate that step (23) obtains are carried out smart four operations slowly, obtain smart four concentrate and slowly smart four mine tailings slowly; Wherein selected four working technology conditions are slowly: adding inhibitor dosage of pectin is 150g/t, and action time is 5min;
(26) slow smart four mine tailings that step (25) obtains are carried out essence and sweep two operations, obtain essence and sweep two concentrate and essence sweeps two mine tailings, wherein essence is swept two concentrate and is back to smart two operations slowly, and essence is swept two mine tailings and is back to and sweeps two operations slowly; Wherein essence is swept two working technology conditions and is: adding inhibitor dosage of pectin is 60g/t, and action time is 5min, and adding collecting agent CA-02 consumption is 40g/t, and action time is 3min.
(27) slow smart four concentrate that the selected tungsten concentrate that fast selected tungsten concentrate step (4) obtained, step (10) obtain and step (25) obtain merge, and obtain final tungsten concentrate.
White tungsten fine ore tungstenic 65.47%, the rate of recovery 78.54% that the present embodiment obtains.
Embodiment 5
The raw ore tungstenic 0.20% sorted, in ore, tungsten mineral is composed and is existed in scheelite, is wolframite on a small quantity, and embedding cloth feature is complicated, and disseminated grain size is uneven, and monomer dissociation is poor.Adopt tungsten concentrate tungstenic 44.86%, the rate of recovery 54.27% that existing skarn type floatation of tungsten mineral technology obtains.
Adopt the collecting agent CA-02 in skarn type tungsten mine new method of the present invention and embodiment 3 to select low-grade skarn type tungsten ore to carry out sorting to this complicated difficult, it sorts step and is:
(1) skarn type tungsten ore raw ore is taked, levigate; Wherein mog is that the content of-0.1mm accounts for 60% of total amount;
(2) ore pulp after levigate enters graded operation, obtains the coarse grain product of+0.1mm and the fine particle product of-0.1mm; Wherein partition size is 0.1mm;
(3) the coarse grain product of+0.1mm step (2) obtained roughly selects operation soon, obtains fast selected concentrate and fast rougher tailings; Wherein roughly selecting working technology condition is soon: adding dispersant sodium carbonate amount is 700g/t, and action time is 4min, and inhibitor waterglass consumption is 1400g/t, and action time is 5min, and collecting agent SA leftover bits and pieces consumption is 110g/t, and action time is 3min;
(4) the fast rougher concentration that step (3) obtains is carried out fast selected operation, obtain fast selected tungsten concentrate and fast selected chats, fast selected middling recurrence roughly selects operation soon to last layer; Wherein fast selected working technology condition is: adding inhibitor waterglass consumption is 350g/t, and action time is 5min;
(5) the fast rougher tailings that step (3) obtains is regrinded, obtain product of regrinding; Mog of wherein regrinding is that the content of-0.1mm accounts for 90% of total amount;
(6) product of regrinding that step (5) obtains is carried out classification, obtain the coarse grain product of+0.1mm and the fine particle product of-0.1mm, the coarse grain product of+0.1mm is back to the Regrinding of last layer; Wherein partition size is 0.1mm;
(7)-0.1mm fine particle product the merging that-0.1mm fine particle product step (2) obtained and step (6) obtain carries out roughly selecting operation, obtains rougher concentration and rougher tailings; Wherein roughly selecting working technology condition is: adding dispersant sodium carbonate amount is 1100g/t, and action time is 4min, and inhibitor waterglass consumption is 1300g/t, and action time is 5min, and collecting agent oleic acid consumption is 200g/t, and action time is 4min;
(8) rougher concentration that step (7) obtains is carried out a selected operation, obtain single-minded concentrate and single-minded chats; Wherein a selected working technology condition is: adding inhibitor waterglass consumption is 450g/t, and action time is 5min;
(9) the single-minded concentrate that step (8) obtains is carried out selected two operations, obtain smart two concentrate and smart two chats; Wherein selected two working technology conditions are: adding inhibitor waterglass consumption is 500g/t, and action time is 5min;
(10) essence two concentrate that step (9) obtains is carried out selected three operations, obtain selected tungsten concentrate and smart three chats, smart three middling recurrence are to a selected operation; Wherein selected three working technology conditions are: adding inhibitor waterglass consumption is 500g/t, and action time is 5min;
(11) essence two chats that single-minded chats step (8) obtained and step (9) obtain carries out centrifugal reselection operation, and obtain gravity concentrate I and gravity tailings I, gravity concentrate I is back to and roughly selects operation; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 380r/min, washing water quantity 3L/min;
(12) rougher tailings that step (7) obtains is carried out scanning an operation, obtain sweeping a concentrate and sweep a mine tailing, sweep a concentrate and be back to and roughly select operation; Wherein scanning a working technology condition is: adding dispersant sodium carbonate amount is 400g/t, and action time is 5min, and inhibitor waterglass consumption is 400g/t, and action time is 5min, and collecting agent oleic acid consumption is 60g/t, and action time is 3min;
(13) concentrate of sweeping step (12) obtained carries out scanning two operations, obtains sweeping two concentrate and sweeps two mine tailings, sweeps two concentrate and is back to and scans an operation; Wherein scanning two working technology conditions is: adding dispersant sodium carbonate amount is 200g/t, and action time is 5min, and inhibitor waterglass consumption is 250g/t, and action time is 5min, and collecting agent oleic acid consumption is 40g/t, and action time is 3min;
(14) what gravity tailings I step (11) obtained and step (13) obtained sweep, and two mine tailings merge carries out fine grinding operation, obtain fine grinding product; Wherein fine grinding working technology condition is: adding sodium lignosulfonate consumption is 700g/t, and waterglass consumption is 500g/t, and mog is that the content of-0.074mm accounts for 90% of total amount;
(15) the fine grinding product that step (14) obtains is carried out classification, obtain the coarse grain product of+0.074mm and the fine particle product of-0.074mm, the coarse grain product of+0.074mm is back to the fine grinding operation of last layer; Wherein partition size is 0.074mm;
(16)-0.074mm the fine particle product that step (15) obtains is roughly selected operation slowly, obtain slow rougher concentration and slow rougher tailings; Wherein roughly selecting working technology condition is slowly: adding dispersant sodium carbonate amount is 800g/t, and action time is 5min, and inhibitor dosage of pectin is 500g/t, and action time is 5min, and collecting agent CA-02 consumption is 250g/t, and action time is 3min;
(17) the slow rougher tailings that step (16) obtains is swept an operation slowly, swept a concentrate slowly and sweep a mine tailing slowly; Wherein sweeping a working technology condition is slowly: adding dispersant sodium carbonate amount is 250g/t, and action time is 5min, and inhibitor waterglass consumption is 300g/t, and action time is 5min, and collecting agent CA-02 consumption is 80g/t, and action time is 3min;
(18) mine tailing of sweeping slowly that step (17) obtains is swept two operations slowly, swept two concentrate slowly and sweep two mine tailings slowly; Wherein sweeping two working technology conditions is slowly: adding dispersant sodium carbonate amount is 130g/t, and action time is 5min, and inhibitor waterglass consumption is 150g/t, and action time is 5min, and collecting agent CA-02 consumption is 25g/t, and action time is 3min;
(19) the slow rougher concentration that step (16) obtains is carried out a selected operation slowly, obtain slow single-minded concentrate and slow single-minded chats; Wherein a selected working technology condition is slowly: adding inhibitor dosage of pectin is 250g/t, and action time is 5min;
(20) the slow single-minded concentrate that step (19) obtains is carried out selected two operations slowly, obtain smart two concentrate and slowly smart two chats slowly; Wherein selected two working technology conditions are slowly: adding inhibitor dosage of pectin is 250g/t, and action time is 5min;
(21) centrifugal reselection operation is carried out in the slow smart two chats merging that slow single-minded chats step (19) obtained and step (20) obtain, obtain gravity concentrate II and gravity tailings II, wherein gravity concentrate II is back to and roughly selects operation slowly; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 450r/min, washing water quantity 2L/min;
(22) what gravity tailings II step (21) obtained and step (18) obtained sweeps two mine tailings merging slowly, obtains total mine tailing;
(23) slow smart two concentrate that step (20) obtains are carried out selected three operations slowly, obtain smart three concentrate and slowly smart three chats slowly; Wherein selected three working technology conditions are slowly: adding inhibitor dosage of pectin is 135g/t, and action time is 5min;
(24) slow smart three chats that step (23) obtains are carried out essence and sweep an operation, obtain essence and sweep a concentrate and essence sweeps a mine tailing, wherein essence is swept a concentrate and is back to slow single-minded operation, and essence is swept a mine tailing and is back to and sweeps an operation slowly; Wherein essence is swept a working technology condition and is: adding inhibitor dosage of pectin is 60g/t, and action time is 4min, and adding collecting agent CA-02 consumption is 30g/t, and action time is 3min;
(25) slow smart three concentrate that step (23) obtains are carried out smart four operations slowly, obtain smart four concentrate and slowly smart four mine tailings slowly; Wherein selected four working technology conditions are slowly: adding inhibitor dosage of pectin is 135g/t, and action time is 4min;
(26) slow smart four mine tailings that step (25) obtains are carried out essence and sweep two operations, obtain essence and sweep two concentrate and essence sweeps two mine tailings, wherein essence is swept two concentrate and is back to smart two operations slowly, and essence is swept two mine tailings and is back to and sweeps two operations slowly; Wherein essence is swept two working technology conditions and is: adding inhibitor dosage of pectin is 50g/t, and action time is 4min, and adding collecting agent CA-02 consumption is 20g/t, and action time is 3min.
(27) slow smart four concentrate that the selected tungsten concentrate that fast selected tungsten concentrate step (4) obtained, step (10) obtain and step (25) obtain merge, and obtain final tungsten concentrate.
Tungsten concentrate tungstenic 66.65%, the rate of recovery 79.66% that the present embodiment obtains.
Embodiment 6
The raw ore tungstenic 0.18% sorted, in ore, tungsten mineral exists with the form of scheelite and wolframite, and embedding cloth feature is complicated, and disseminated grain size is uneven, and monomer dissociation is poor.Adopt tungsten concentrate tungstenic 40.32%, the rate of recovery 47.64% that existing skarn type floatation of tungsten mineral technology obtains.
Adopt the collecting agent CA-02 in skarn type tungsten mine new method of the present invention and embodiment 3 to select low-grade skarn type tungsten ore to carry out sorting to this complicated difficult, it sorts step and is:
(1) skarn type tungsten ore raw ore is taked, levigate; Wherein mog is that the content of-0.1mm accounts for 60% of total amount;
(2) ore pulp after levigate enters graded operation, obtains the coarse grain product of+0.1mm and the fine particle product of-0.1mm; Wherein partition size is 0.1mm;
(3) the coarse grain product of+0.1mm step (2) obtained roughly selects operation soon, obtains fast selected concentrate and fast rougher tailings; Wherein roughly selecting working technology condition is soon: adding dispersant sodium carbonate amount is 600g/t, and action time is 5min, and inhibitor waterglass consumption is 1400g/t, and action time is 5min, and collecting agent SA leftover bits and pieces consumption is 90g/t, and action time is 4min;
(4) the fast rougher concentration that step (3) obtains is carried out fast selected operation, obtain fast selected tungsten concentrate and fast selected chats, fast selected middling recurrence roughly selects operation soon to last layer; Wherein fast selected working technology condition is: adding inhibitor waterglass consumption is 400g/t, and action time is 5min;
(5) the fast rougher tailings that step (3) obtains is regrinded, obtain product of regrinding; Mog of wherein regrinding is that the content of-0.1mm accounts for 90% of total amount;
(6) product of regrinding that step (5) obtains is carried out classification, obtain the coarse grain product of+0.1mm and the fine particle product of-0.1mm, the coarse grain product of+0.1mm is back to the Regrinding of last layer; Wherein partition size is 0.1mm;
(7)-0.1mm fine particle product the merging that-0.1mm fine particle product step (2) obtained and step (6) obtain carries out roughly selecting operation, obtains rougher concentration and rougher tailings; Wherein roughly selecting working technology condition is: adding dispersant sodium carbonate amount is 1000g/t, and action time is 5min, and inhibitor waterglass consumption is 1400g/t, and action time is 5min, and collecting agent oleic acid consumption is 200g/t, and action time is 3min;
(8) rougher concentration that step (7) obtains is carried out a selected operation, obtain single-minded concentrate and single-minded chats; Wherein a selected working technology condition is: adding inhibitor waterglass consumption is 500g/t, and action time is 5min;
(9) the single-minded concentrate that step (8) obtains is carried out selected two operations, obtain smart two concentrate and smart two chats; Wherein selected two working technology conditions are: adding inhibitor waterglass consumption is 500g/t, and action time is 5min;
(10) essence two concentrate that step (9) obtains is carried out selected three operations, obtain selected tungsten concentrate and smart three chats, smart three middling recurrence are to a selected operation; Wherein selected three working technology conditions are: adding inhibitor waterglass consumption is 500g/t, and action time is 5min;
(11) essence two chats that single-minded chats step (8) obtained and step (9) obtain carries out centrifugal reselection operation, and obtain gravity concentrate I and gravity tailings I, gravity concentrate I is back to and roughly selects operation; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 400r/min, washing water quantity 2.5L/min;
(12) rougher tailings that step (7) obtains is carried out scanning an operation, obtain sweeping a concentrate and sweep a mine tailing, sweep a concentrate and be back to and roughly select operation; Wherein scanning a working technology condition is: adding dispersant sodium carbonate amount is 400g/t, and action time is 5min, and inhibitor waterglass consumption is 450g/t, and action time is 5min, and collecting agent oleic acid consumption is 70g/t, and action time is 3min;
(13) concentrate of sweeping step (12) obtained carries out scanning two operations, obtains sweeping two concentrate and sweeps two mine tailings, sweeps two concentrate and is back to and scans an operation; Wherein scanning two working technology conditions is: adding dispersant sodium carbonate amount is 200g/t, and action time is 5min, and inhibitor waterglass consumption is 260g/t, and action time is 5min, and collecting agent oleic acid consumption is 30g/t, and action time is 4min;
(14) what gravity tailings I step (11) obtained and step (13) obtained sweep, and two mine tailings merge carries out fine grinding operation, obtain fine grinding product; Wherein fine grinding working technology condition is: adding sodium lignosulfonate consumption is 600g/t, and waterglass consumption is 500g/t, and mog is that the content of-0.074mm accounts for 90% of total amount;
(15) the fine grinding product that step (14) obtains is carried out classification, obtain the coarse grain product of+0.074mm and the fine particle product of-0.074mm, the coarse grain product of+0.074mm is back to the fine grinding operation of last layer; Wherein partition size is 0.074mm;
(16)-0.074mm the fine particle product that step (15) obtains is roughly selected operation slowly, obtain slow rougher concentration and slow rougher tailings; Wherein roughly selecting working technology condition is slowly: adding dispersant sodium carbonate amount is 900g/t, and action time is 5min, and inhibitor dosage of pectin is 600g/t, and action time is 5min, and collecting agent CA-02 consumption is 300g/t, and action time is 3min;
(17) the slow rougher tailings that step (16) obtains is swept an operation slowly, swept a concentrate slowly and sweep a mine tailing slowly; Wherein sweeping a working technology condition is slowly: adding dispersant sodium carbonate amount is 300g/t, and action time is 5min, and inhibitor waterglass consumption is 300g/t, and action time is 5min, and collecting agent CA-02 consumption is 80g/t, and action time is 3min;
(18) mine tailing of sweeping slowly that step (17) obtains is swept two operations slowly, swept two concentrate slowly and sweep two mine tailings slowly; Wherein sweeping two working technology conditions is slowly: adding dispersant sodium carbonate amount is 200g/t, and action time is 5min, and inhibitor waterglass consumption is 250g/t, and action time is 5min, and collecting agent CA-02 consumption is 20g/t, and action time is 3min;
(19) the slow rougher concentration that step (16) obtains is carried out a selected operation slowly, obtain slow single-minded concentrate and slow single-minded chats; Wherein a selected working technology condition is slowly: adding inhibitor dosage of pectin is 250g/t, and action time is 5min;
(20) the slow single-minded concentrate that step (19) obtains is carried out selected two operations slowly, obtain smart two concentrate and slowly smart two chats slowly; Wherein selected two working technology conditions are slowly: adding inhibitor dosage of pectin is 300g/t, and action time is 5min;
(21) centrifugal reselection operation is carried out in the slow smart two chats merging that slow single-minded chats step (19) obtained and step (20) obtain, obtain gravity concentrate II and gravity tailings II, wherein gravity concentrate II is back to and roughly selects operation slowly; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 450r/min, washing water quantity 1.5L/min;
(22) what gravity tailings II step (21) obtained and step (18) obtained sweeps two mine tailings merging slowly, obtains total mine tailing;
(23) slow smart two concentrate that step (20) obtains are carried out selected three operations slowly, obtain smart three concentrate and slowly smart three chats slowly; Wherein selected three working technology conditions are slowly: adding inhibitor dosage of pectin is 150g/t, and action time is 5min;
(24) slow smart three chats that step (23) obtains are carried out essence and sweep an operation, obtain essence and sweep a concentrate and essence sweeps a mine tailing, wherein essence is swept a concentrate and is back to slow single-minded operation, and essence is swept a mine tailing and is back to and sweeps an operation slowly; Wherein essence is swept a working technology condition and is: adding inhibitor dosage of pectin is 100g/t, and action time is 5min, and adding collecting agent CA-02 consumption is 60g/t, and action time is 3min;
(25) slow smart three concentrate that step (23) obtains are carried out smart four operations slowly, obtain smart four concentrate and slowly smart four mine tailings slowly; Wherein selected four working technology conditions are slowly: adding inhibitor dosage of pectin is 150g/t, and action time is 5min;
(26) slow smart four mine tailings that step (25) obtains are carried out essence and sweep two operations, obtain essence and sweep two concentrate and essence sweeps two mine tailings, wherein essence is swept two concentrate and is back to smart two operations slowly, and essence is swept two mine tailings and is back to and sweeps two operations slowly; Wherein essence is swept two working technology conditions and is: adding inhibitor dosage of pectin is 40g/t, and action time is 5min, and adding collecting agent CA-02 consumption is 30g/t, and action time is 3min.
(27) slow smart four concentrate that the selected tungsten concentrate that fast selected tungsten concentrate step (4) obtained, step (10) obtain and step (25) obtain merge, and obtain final tungsten concentrate.
White tungsten fine ore tungstenic 64.83%, the rate of recovery 77.62% that the present embodiment obtains.
The content be not described in detail in this description is the known prior art of professional and technical personnel in the field.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a beneficiation method for skarn type tungsten ore, is characterized in that, comprises the following steps:
(1) skarn type tungsten ore raw ore is taked, levigate; Wherein mog is that the content of-0.1mm accounts for 55 ~ 60% of total amount;
(2) ore pulp after levigate enters graded operation, obtains the coarse grain product of+0.1mm and the fine particle product of-0.1mm; Wherein partition size is 0.1mm;
(3) the coarse grain product of+0.1mm step (2) obtained roughly selects operation soon, obtains fast selected concentrate and fast rougher tailings; Wherein roughly selecting working technology condition is soon: adding dispersant sodium carbonate amount is 500 ~ 800g/t, action time is 4 ~ 5min, inhibitor waterglass consumption is 1200 ~ 1500g/t, action time is 4 ~ 5min, collecting agent SA leftover bits and pieces consumption is 80 ~ 120g/t, and action time is 3 ~ 4min;
(4) the fast rougher concentration that step (3) obtains is carried out fast selected operation, obtain fast selected tungsten concentrate and fast selected chats, fast selected middling recurrence roughly selects operation soon to last layer; Wherein fast selected working technology condition is: adding inhibitor waterglass consumption is 300 ~ 400g/t, and action time is 4 ~ 5min;
(5) the fast rougher tailings that step (3) obtains is regrinded, obtain product of regrinding; Mog of wherein regrinding is that the content of-0.1mm accounts for 80 ~ 90% of total amount;
(6) product of regrinding that step (5) obtains is carried out classification, obtain the coarse grain product of+0.1mm and the fine particle product of-0.1mm, the coarse grain product of+0.1mm is back to the Regrinding of last layer; Wherein partition size is 0.1mm;
(7)-0.1mm fine particle product the merging that-0.1mm fine particle product step (2) obtained and step (6) obtain carries out roughly selecting operation, obtains rougher concentration and rougher tailings; Wherein roughly selecting working technology condition is: adding dispersant sodium carbonate amount is 800 ~ 1200g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 1200 ~ 1500g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 150 ~ 250g/t, and action time is 3 ~ 4min;
(8) rougher concentration that step (7) obtains is carried out a selected operation, obtain single-minded concentrate and single-minded chats; Wherein a selected working technology condition is: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(9) the single-minded concentrate that step (8) obtains is carried out selected two operations, obtain smart two concentrate and smart two chats; Wherein selected two working technology conditions are: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(10) essence two concentrate that step (9) obtains is carried out selected three operations, obtain selected tungsten concentrate and smart three chats, smart three middling recurrence are to a selected operation; Wherein selected three working technology conditions are: adding inhibitor waterglass consumption is 400 ~ 500g/t, and action time is 4 ~ 5min;
(11) essence two chats that single-minded chats step (8) obtained and step (9) obtain carries out centrifugal reselection operation, and obtain gravity concentrate I and gravity tailings I, gravity concentrate I is back to and roughly selects operation; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 350 ~ 400r/min, washing water quantity 1 ~ 3L/min;
(12) rougher tailings that step (7) obtains is carried out scanning an operation, obtain sweeping a concentrate and sweep a mine tailing, sweep a concentrate and be back to and roughly select operation; Wherein scanning a working technology condition is: adding dispersant sodium carbonate amount is 300 ~ 500g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 300 ~ 500g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 50 ~ 80g/t, and action time is 3 ~ 4min;
(13) concentrate of sweeping step (12) obtained carries out scanning two operations, obtains sweeping two concentrate and sweeps two mine tailings, sweeps two concentrate and is back to and scans an operation; Wherein scanning two working technology conditions is: adding dispersant sodium carbonate amount is 150 ~ 300g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 150 ~ 300g/t, and action time is 4 ~ 5min, collecting agent oleic acid consumption is 20 ~ 50g/t, and action time is 3 ~ 4min;
(14) what gravity tailings I step (11) obtained and step (13) obtained sweep, and two mine tailings merge carries out fine grinding operation, obtain fine grinding product; Wherein fine grinding working technology condition is: adding sodium lignosulfonate consumption is 500 ~ 800g/t, and inhibitor waterglass consumption is 400 ~ 600g/t, and mog is that the content of-0.074mm accounts for 85 ~ 90% of total amount;
(15) the fine grinding product that step (14) obtains is carried out classification, obtain the coarse grain product of+0.074mm and the fine particle product of-0.074mm, the coarse grain product of+0.074mm is back to the fine grinding operation of last layer; Wherein partition size is 0.074mm;
(16)-0.074mm the fine particle product that step (15) obtains is roughly selected operation slowly, obtain slow rougher concentration and slow rougher tailings; Wherein roughly selecting working technology condition is slowly: adding dispersant sodium carbonate amount is 700 ~ 1000g/t, action time is 4 ~ 5min, and inhibitor dosage of pectin is 400 ~ 600g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 200 ~ 300g/t, and action time is 3 ~ 4min;
(17) the slow rougher tailings that step (16) obtains is swept an operation slowly, swept a concentrate slowly and sweep a mine tailing slowly; Wherein sweeping a working technology condition is slowly: adding dispersant sodium carbonate amount is 200 ~ 300g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 200 ~ 400g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 70 ~ 100g/t, and action time is 3 ~ 4min;
(18) mine tailing of sweeping slowly that step (17) obtains is swept two operations slowly, swept two concentrate slowly and sweep two mine tailings slowly; Wherein sweeping two working technology conditions is slowly: adding dispersant sodium carbonate amount is 100 ~ 150g/t, action time is 4 ~ 5min, and inhibitor waterglass consumption is 100 ~ 200g/t, and action time is 4 ~ 5min, collecting agent CA-02 consumption is 20 ~ 30g/t, and action time is 3 ~ 4min;
(19) the slow rougher concentration that step (16) obtains is carried out a selected operation slowly, obtain slow single-minded concentrate and slow single-minded chats; Wherein a selected working technology condition is slowly: adding inhibitor dosage of pectin is 200 ~ 300g/t, and action time is 4 ~ 5min;
(20) the slow single-minded concentrate that step (19) obtains is carried out selected two operations slowly, obtain smart two concentrate and slowly smart two chats slowly; Wherein selected two working technology conditions are slowly: adding inhibitor dosage of pectin is 200 ~ 300g/t, and action time is 4 ~ 5min;
(21) centrifugal reselection operation is carried out in the slow smart two chats merging that slow single-minded chats step (19) obtained and step (20) obtain, obtain gravity concentrate II and gravity tailings II, wherein gravity concentrate II is back to and roughly selects operation slowly; Wherein centrifugal reselection working technology condition is: regulate centrifugal ore separator rotary drum rotating speed to be 400 ~ 450r/min, washing water quantity 1 ~ 2L/min;
(22) what gravity tailings II step (21) obtained and step (18) obtained sweeps two mine tailings merging slowly, obtains total mine tailing;
(23) slow smart two concentrate that step (20) obtains are carried out selected three operations slowly, obtain smart three concentrate and slowly smart three chats slowly; Wherein selected three working technology conditions are slowly: adding inhibitor dosage of pectin is 100 ~ 150g/t, and action time is 4 ~ 5min;
(24) slow smart three chats that step (23) obtains are carried out essence and sweep an operation, obtain essence and sweep a concentrate and essence sweeps a mine tailing, wherein essence is swept a concentrate and is back to slow single-minded operation, and essence is swept a mine tailing and is back to and sweeps an operation slowly; Wherein essence is swept a working technology condition and is: adding inhibitor dosage of pectin is 50 ~ 100g/t, and action time is 4 ~ 5min, and adding collecting agent CA-02 consumption is 50-80g/t, and action time is 3 ~ 4min;
(25) slow smart three concentrate that step (23) obtains are carried out smart four operations slowly, obtain smart four concentrate and slowly smart four mine tailings slowly; Wherein selected four working technology conditions are slowly: adding inhibitor dosage of pectin is 100 ~ 150g/t, and action time is 4 ~ 5min;
(26) slow smart four mine tailings that step (25) obtains are carried out essence and sweep two operations, obtain essence and sweep two concentrate and essence sweeps two mine tailings, wherein essence is swept two concentrate and is back to smart two operations slowly, and essence is swept two mine tailings and is back to and sweeps two operations slowly; Wherein essence is swept two working technology conditions and is: adding inhibitor dosage of pectin is 40 ~ 80g/t, and action time is 4 ~ 5min, and adding collecting agent CA-02 consumption is 20-50g/t, and action time is 3 ~ 4min;
(27) slow smart four concentrate that the selected tungsten concentrate that fast selected tungsten concentrate step (4) obtained, step (10) obtain and step (25) obtain merge, and obtain final tungsten concentrate.
2. beneficiation method according to claim 1, it is characterized in that, described collecting agent CA-02 is with 2-hydroxyl-3 naphthalene first hydroximic acid, 1,1,2-octyl tricarboxylic, 1-phenyl-2-mercaptobenzoimidazole are raw material, and three is according to mass ratio (1.5 ~ 2.5): the proportioning of 1: 1 mixing, stirring forms.
3. beneficiation method according to claim 1, it is characterized in that, described collecting agent CA-02 is with 2-hydroxyl-3 naphthalene first hydroximic acid, 1,1,2-octyl tricarboxylic, 1-phenyl-2-mercaptobenzoimidazole are raw material, three according to mass ratio 2: 1: 1 proportioning mixes, stirring forms.
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| CN106733222A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of method for floating that Mo-bearing Iron Ores are removed from white tungsten fine ore |
| CN107309074A (en) * | 2017-07-27 | 2017-11-03 | 金堆城钼业股份有限公司 | A kind of technique of substep production high-grade molybdenum concntrate and common molybdenum concntrate |
| CN107413513A (en) * | 2017-06-07 | 2017-12-01 | 中南大学 | The method for floating of copper sulfide zinc ore |
| CN110773326A (en) * | 2019-11-08 | 2020-02-11 | 湖南辰州矿业有限责任公司 | Method for recycling underground water to scheelite flotation |
| CN112657670A (en) * | 2020-12-04 | 2021-04-16 | 东北大学 | Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings |
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| CN106733222A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of method for floating that Mo-bearing Iron Ores are removed from white tungsten fine ore |
| CN106583028A (en) * | 2016-12-15 | 2017-04-26 | 云南锡业股份有限公司卡房分公司 | Beneficiation method for low-grade scheelite rich in hedenbergite and andradite |
| CN107413513A (en) * | 2017-06-07 | 2017-12-01 | 中南大学 | The method for floating of copper sulfide zinc ore |
| CN107309074A (en) * | 2017-07-27 | 2017-11-03 | 金堆城钼业股份有限公司 | A kind of technique of substep production high-grade molybdenum concntrate and common molybdenum concntrate |
| CN110773326A (en) * | 2019-11-08 | 2020-02-11 | 湖南辰州矿业有限责任公司 | Method for recycling underground water to scheelite flotation |
| CN112657670A (en) * | 2020-12-04 | 2021-04-16 | 东北大学 | Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings |
| CN112657670B (en) * | 2020-12-04 | 2022-04-01 | 东北大学 | Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings |
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