CN107042162A - A kind of beneficiation method of low-grade vulcanized lead ore deposit - Google Patents
A kind of beneficiation method of low-grade vulcanized lead ore deposit Download PDFInfo
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Abstract
The present invention is a kind of beneficiation method of low-grade vulcanized lead ore deposit, is related to the technical field of beneficiation method.Comprise the following steps：Earlier machine：Crushing raw ore, first time ore grinding, obtain miberal powder, and miberal powder adds water and stirred, and obtains ore pulp 1；1 roughing operation is carried out to ore pulp 1 and operation is scanned 1 time, true tailings and lead rough concentrate is obtained；Second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, obtains ore pulp 2；Selected operation twice is carried out to ore pulp 2, lead concentrate is obtained.A kind of beneficiation method of low-grade vulcanized lead ore deposit described in the present embodiment, has ore grinding processing twice, the valuable mineral of ore can be made fully to be dissociated with gangue mineral, beneficial to selected operation below；And the floating agent of same type only uses one, and dosage is small, can reduce cost；Also there was only selected operation twice, flow is shorter, technique is simple, and the rate of recovery is also high, the grade of the lead concentrate of acquisition is high, the grade of concentrate is asked without further optimization.
Description
Technical field
The invention belongs to the technical field of beneficiation method, and in particular to a kind of beneficiation method of low-grade vulcanized lead ore deposit.
Background technology
Lead is the strong weak metal of soft and ductility, poisonous, is also heavy metal.Lead can be used for build, bullet, shell, weldering
Connect in material, fishery apparatus, radiation proof material, trophy and part alloy.It also is used as sulfuric acid corrosion resistant, anti-gamma ray, storage
The material of battery etc..Its alloy can make font, bearing, cable sheathing etc., athletic sports appliance shot can also be made, in life
Using quite varied.Lead ore raw material is divided into two kinds of sulphide ore and oxide ore, and vulcanized lead ore refines the primary raw material of lead now.
The much more general method using flotation obtains lead concentrate from primary ore, but the refining process step of lead rough concentrate
Complexity, and it is repeatedly selected；In floatation process, the floating agent of same type can use multiple, and dosage is big；Also
More containing impurity in the lead concentrate floatingly selected, i.e., gangue mineral is more, and gangue mineral and useful metal be closely together with embedding cloth,
If content is more, the difficulty and cost of smelting can be improved, smelting recovery is reduced；And low-grade lead concentrate also need into
The optimization of one step, can improve beneficiation cost.But the few lead concentrate of high-grade, impurity has high smelting recovery, transport and smelting
The advantages such as a low, selling price is high are smelt, are welcome by mine and smelting enterprise.
In view of this, it is necessary to propose a kind of beneficiation method of new low-grade vulcanized lead ore deposit.
The content of the invention
It is an object of the invention to provide a kind of beneficiation method of low-grade vulcanized lead ore deposit, this method refining process is short, floating
Select dosing small, lead concentrate grade can be greatly improved.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of beneficiation method of low-grade vulcanized lead ore deposit, comprises the following steps：
(1) earlier machine：Raw ore obtains miberal powder, miberal powder adds water and stirred, and obtains ore deposit through broken, first time ore grinding
Slurry 1；Wherein, the miberal powder content that first time ore grinding should make fineness be less than 0.074mm reaches more than 47%；
(2) roughing operation：Inhibitor 38-42g/t is added into ore pulp 1, stirring adds collecting agent 11-13g/t and foaming
Agent 7-9g/t, roughing is being carried out after stirring, obtains rougher tailings and roughing foam, and roughing foam is lead rough concentrate；
(3) operation is scanned：Collecting agent 6-7g/t and foaming agent 3-4g/t is added into rougher tailings, is swept again after stirring
Choosing, obtains scanning mine tailing and scans foam, scan foam and return to roughing operation, scans mine tailing for true tailings；
(4) second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, will to second of mog is met
Add water and size mixing in the ore pulp asked, the mass fraction to ore pulp is 18-31%, obtains ore pulp 2；Wherein, second of ore grinding should make carefully
Miberal powder content of the degree less than 0.044mm reaches more than 66%；
(5) selected operation for the first time：Inhibitor 30-50g/t is added into ore pulp 2, stirring adds collecting agent 3-5g/t
With foaming agent 1-2g/t, carry out again selected after stirring, obtain selected 1 foam and selected 1 mine tailing；
(6) it is selected for the second time：Collecting agent 1-2g/t and foaming agent 1g/t is added into selected 1 mine tailing, is carried out again after stirring
It is selected, selected 2 foam and selected 2 mine tailing are obtained, selected 2 mine tailing returns to roughing operation；
(7) selected 1 foam and selected 2 foamed filter are dehydrated, obtain described lead concentrate.
Further, the inhibitor is waterglass, and the collecting agent is sodium ethyl xanthate, and the foaming agent is pine camphor
Oil.
Further, the waterglass is Na2SiO3·9H2O。
Further, in the step (1), the mass fraction of ore pulp 1 is 39-42%.
Further, the step (4) also includes：The ore pulp that second of mog requirement is not met after classification is returned
To second of ore grinding.
Further, in the step (2)：Add inhibitor into ore pulp 1, stir 10-15 minute, add collecting agent with
Foaming agent, stirring is carrying out roughing after 1-3 minutes, and the roughing time is 5-8 minutes；
In step (3)：Collecting agent and foaming agent are added into rougher tailings, stirring is scanned, scanned again after 1-3 minutes
Time is 1-3 minutes；
In step (5)：Inhibitor is added into ore pulp 2, is stirred 3-4 minutes, collecting agent and foaming agent is added, 1- is stirred
Carried out again after 3 minutes it is selected, the selected time be 2-4 minutes；
In step (6)：Collecting agent and foaming agent are added into selected 1 mine tailing, stirring carries out selected, essence again after 1-3 minutes
It is 1-3 minutes to select the time.
Further, in the step (2)：The consumption of inhibitor is 40g/t, and the consumption of collecting agent is 12g/t, foaming agent
Consumption be 8g/t；
In the step (3)：The consumption of collecting agent is 6g/t, and the consumption of foaming agent is 3g/t.
Further, in the step (7), the mass fraction of lead concentrate reclaimed water is less than 9%.
Compared with prior art, the beneficial effects of the present invention are：
1st, beneficiation method of the present invention, has ore grinding processing twice, second conventional of mog, which is generally, to be made carefully
Miberal powder content of the degree less than 0.074mm reaches more than 90%, and of the invention is that the miberal powder content for making fineness be less than 0.044mm reaches
More than 66%, miberal powder is thinner, can improve the middle valuable mineral of ore and the degree of dissociation of gangue mineral, is conducive to below selected
Operation, and floating agent dosage is reduced, so as to reduce cost.
2nd, beneficiation method of the present invention, the floating agent of same type only uses one, and dosage is small, can be with
Reduce cost.
3rd, beneficiation method of the present invention, only selected operation twice, flow are shorter, and technique is simple, and cost is low, obtain
The grade of lead concentrate be 80-82%, the rate of recovery can reach 95%-97%, can effectively reduce impurity content in lead concentrate, greatly
It is big to improve lead concentrate grade, and the rate of recovery is higher；Because the lead concentrate grade obtained is high, without the optimization lead essence further walked
Ore deposit, it is possible to reduce industrial cost.
Brief description of the drawings
Fig. 1 is a kind of process chart of the beneficiation method of low-grade vulcanized lead ore deposit of the invention.
Embodiment
In order to which a kind of beneficiation method of low-grade vulcanized lead ore deposit of the invention is expanded on further, expected goal of the invention is reached, with
Lower combination preferred embodiment, to according to a kind of beneficiation method of low-grade vulcanized lead ore deposit proposed by the present invention, its specific embodiment party
Formula, structure, feature and its effect, are described in detail as after.In the following description, different " embodiment " or " embodiment " refers to
It is not necessarily same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable forms
Combination.
Before a kind of beneficiation method of low-grade vulcanized lead ore deposit of the invention is elaborated, it is necessary to being referred in the present invention
Associated materials and operation be described further, to reach more preferable effect.
Inhibitor, it is a kind of to increase ore particle wetability and it is difficult to be attached to the thing on bubble when referring to floating separation
Matter, inhibitor can be inorganic compound such as lime, waterglass, cyanide etc. or organic compound such as starch, glue class
Deng of the invention to be preferentially used as inhibitor from waterglass.
Waterglass, is commonly called as sodium silicate, is a kind of water-soluble silicate, and its aqueous solution is commonly called as waterglass, is a kind of ore deposit bonding
Agent.Its chemical formula is R2O·nSiO2, R in formula2O is alkali metal oxide, and n is silica and alkali metal oxide molal quantity
Ratio, referred to as waterglass the number that rubs.Waterglass is a kind of inorganic colloid, is one of the regulator in floating agent, it is to stone
The gangue minerals such as English, silicate have good inhibitory action.During waterglass large usage quantity, there is inhibitory action to sulphide ore；Simultaneously
Waterglass often as flotation dispersant, to improve foam stickiness, so as to improve concentrate grade, for clay content compared with
Many flotation of material are particularly useful.The present invention uses the Na that purity is 87%2SiO3·9H2O。
Collecting agent, is to change mineral surfaces hydrophobicity, the floating agent for making the ore particle swum attach on bubble.Conventional
Sulfide mineral collector has xanthate, xanthate derivative, black powder, baiyao, benzothiazole mercaptan, benzimidazole mercaptan etc., and the present invention is excellent
First collecting agent is used as from sodium ethyl xanthate.
Sodium ethyl xanthate, alias is sodium ethylxanthate, and chemical formula is C3H5OS2Na.It is solid for yellow powder at normal temperatures
Body, often because impurity exist and color burn.Poisonous, inflammable, the easy moisture absorption, property is unstable, soluble in water, acetone and corresponding alcohol
In.Sodium ethyl xanthate is the kind that collecting power is weaker in serial xanthate product but selectivity is best.It is widely used for easily floating sulphur
Change the flotation of ore deposit and the diffeential floatation of complicated sulfuration mine, it may also be used for the flotation of the oxide ore of copper and lead, also act as hydrometallurgy
Precipitating reagent and thiofide.The sodium ethyl xanthate for technical grade that the present invention is used.
The formation of bubble in flotation pulp, depends on various types of inflating and stirring devices in floatation equipment, and
Appropriate foaming agent is added into ore pulp.
Foaming agent is a kind of surface reactive material, the surface active molecules with hydrophilic radical and hydrophobic grouping, and orientation is inhaled
Water-air interface is invested, the surface tension of the aqueous solution is reduced, makes to be filled with the air in water and is easy to disperse into bubble and stablizes gas
Bubble, expands sorting interface, and ensure that bubble rises to form froth bed.Foaming agent and collecting agent, which are united, is adsorbed in mineral
Grain surface, makes ore particle float.Conventional foaming agent has：Pine-tree oil, phenolic acid mixed fatty alcohol, isomery hexanol or pungent liquor-saturated and various
Esters etc., the present invention is preferential to select terpenic oil to be foaming agent.
Terpenic oil, chemical name：Terpenic oil/JF oil, is faint yellow to brown liquid, proportion is less than water, irritant
Gas position.Main application：Terpenic oil is mainly used in the foaming agent of non-ferrous metal and mineral of rare metals flotation, is commonly called as No. two oil,
Through at home and abroad widely using, while the solvent of paint industry, the bleeding agent of textile industry etc. can be made.Terpenic oil is chemical industry synthesis
Oil, foaming effect more satisfactory the characteristics of low with cost.
Ore grinding, in plant equipment, is made by means of the impact in itself of medium (steel ball, rod iron, gravel) and ore and mill stripping
With, the granularity of ore is further diminished, until grind into powder operation.
Classification, satisfactory miberal powder is sent into the operation of next step, and undesirable miberal powder is returned into ore grinding makees
Industry.Principle is, because granularity is different, in media as well with different sinking speed, particle swarm to be divided into two kinds or many according to solid particle
Plant the process of granularity level.
Flotation, floats the abbreviation of ore dressing, is the difference according to mineral particle surface physicochemical properties, by mineral floatability
The method that is sorted of difference.
Roughing, the operation for tentatively being sorted selected raw mineral materials during ore dressing.Through roughing, raw mineral materials is to be sorted
For two or more the product such as rough concentrate, chats, mine tailing, roughing product is not qualified products, also needs to proceed point
Choosing.
Scan, reclaim the sorting operation of useful component, refer to rougher tailings cannot function as true tailings it is discarded when, enter
Next step operation processing.So that improve the rate of recovery of metal, it is sometimes desirable to it can draw true tailings by repeatedly scanning.
It is selected, refer in ore dressing process, to improve the useful component content of rougher concentration, make up to industrial quality
It is required that, the sorting operation being further enriched with to rough concentrate.
Grade, refers to useful element or its compound quality content ratio in ore.
The consumption unit of floating agent is g/t in the present invention, refers to the floating agent that ore deposit per ton adds certain grams.
Yield refers to：Weight percent hundred of the product relative to raw ore.
The rate of recovery：Refer to the mass percent of the lead in the lead and raw ore in lead concentrate.
After the associated materials and operation referred in having understood the present invention, below in conjunction with specific embodiments and Fig. 1
Process flow diagram, a kind of beneficiation method of low-grade vulcanized lead ore deposit of the invention is further described in detail：
Embodiment 1.
Concrete operation step is as follows：
(1) earlier machine：By crushing raw ore, first time ore grinding, reach the miberal powder content that fineness is less than 0.074mm
48%, miberal powder adds water and stirred, and obtains ore pulp 1, the mass fraction of ore pulp 1 is 39%.
(2) roughing operation：Waterglass 38g/t is added into rougher tailings, stirs 10 minutes, adds sodium ethyl xanthate
11g/t and terpenic oil 9g/t, stirring is carrying out roughing after 1 minute, and the roughing time is 5 minutes, obtains rougher tailings and roughing bubble
Foam, roughing foam is lead rough concentrate.
(3) operation is scanned：Sodium ethyl xanthate 6g/t and terpenic oil 3g/t is added into rougher tailings, after stirring 1 minute again
Scanned, scan the time for 1 minute, obtained scanning mine tailing and scan foam, scan foam and return to roughing operation, scan tail
Ore deposit is true tailings；
(4) second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, will to second of mog is met
Add water and size mixing in the ore pulp asked, the mass fraction to ore pulp is 31%, obtains ore pulp 2；Second of mog will not met will
The ore pulp asked returns to second of ore grinding.Wherein, the miberal powder content that second of ore grinding makes fineness be less than 0.044mm reaches
66.02%.
(5) selected operation for the first time：Waterglass 50g/t is added into ore pulp 2, stirs 4 minutes, adds sodium ethyl xanthate
4g/t and terpenic oil 2g/t, stirring 3 minutes after carry out again it is selected, the selected time be 2 minutes, obtain selected 1 foam and selected 1 tail
Ore deposit.
(6) it is selected for the second time：Sodium ethyl xanthate 2g/t and terpenic oil 1g/t is added into selected 1 mine tailing, after stirring 3 minutes
Carry out again it is selected, the selected time be 3 minutes, obtain selected 2 foam and selected 2 mine tailing, selected 2 mine tailing returns to roughing operation.
(7) selected 1 foam and the dehydration of selected 2 foamed filter, obtain final lead concentrate, the mass fraction of lead concentrate reclaimed water
For 6%.
The measure of yield and lead grade, number have been carried out to selected operation for the first time, second selected operation, mine tailing and raw ore
According to it is as shown in the table.
Table 1
As shown in Table 1, the content of lead is 80.02% in the final lead concentrate of the present embodiment, and lead recovery is 95.03%.
A kind of beneficiation method of low-grade vulcanized lead ore deposit described in the present embodiment, there is ore grinding processing, second of ore grinding twice
Miberal powder it is thinner than the miberal powder of second conventional of ore grinding, middle valuable mineral and the dissociation of gangue mineral of ore can be improved
Degree, is conducive to selected operation below, and reduce the consumption of floating agent；In floatation process, the floating agent of same type
One is only used, and dosage is small, can reduce cost；Beneficiation method also described in the present embodiment, it is only smart twice
Industry is elected to be, flow is shorter, technique is simple, the rate of recovery is high, obtained lead concentrate grade is very high, without further optimization concentrate
Grade, so that industrial cost can also be reduced.
Embodiment 2.
Concrete operation step is as follows：
(1) earlier machine：By crushing raw ore, first time ore grinding, reach the miberal powder content that fineness is less than 0.074mm
52%, miberal powder adds water and stirred, and obtains ore pulp 1, the mass fraction of ore pulp 1 is 42%.
(2) roughing operation：Waterglass 42g/t is added into rougher tailings, stirs 15 minutes, adds sodium ethyl xanthate
13g/t and terpenic oil 7g/t, stirring is carrying out roughing after 3 minutes, and the roughing time is 8 minutes, obtains rougher tailings and roughing bubble
Foam, roughing foam is lead rough concentrate, and the lead tolerance of lead rough concentrate is 45.11%.
(3) operation is scanned：Sodium ethyl xanthate 7g/t and terpenic oil 4g/t is added into rougher tailings, after stirring 3 minutes again
Scanned, scan the time for 3 minutes, obtained scanning mine tailing and scan foam, scan foam and return to roughing operation, scan tail
Ore deposit is true tailings；
(4) second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, will to second of mog is met
Add water and size mixing in the ore pulp asked, the mass fraction to ore pulp is 20.4%, obtains ore pulp 2；Second of mog will not met
It is required that ore pulp return to second of ore grinding.Wherein, the miberal powder content that second of ore grinding makes fineness be less than 0.044mm reaches
66.02%.
(5) selected operation for the first time：Waterglass 40g/t is added into ore pulp 2, stirs 2 minutes, adds sodium ethyl xanthate
3g/t and terpenic oil 1g/t, stirring 2 minutes after carry out again it is selected, the selected time be 2 minutes, obtain selected 1 foam and selected 1 tail
Ore deposit.
(6) it is selected for the second time：Sodium ethyl xanthate 2g/t and terpenic oil 1g/t is added into selected 1 mine tailing, after stirring 2 minutes
Carry out again it is selected, the selected time be 2 minutes, obtain selected 2 foam and selected 2 mine tailing, selected 2 mine tailing returns to roughing operation.
(7) selected 1 foam and the dehydration of selected 2 foamed filter, obtain final lead concentrate, the mass fraction of lead concentrate reclaimed water
For 6%.
The measure of yield and lead grade, number have been carried out to selected operation for the first time, second selected operation, mine tailing and raw ore
According to it is as shown in the table.
Table 2
As shown in Table 2, the content of lead is 81.11% in the final lead concentrate of the present embodiment, and lead recovery is 95.77%.
A kind of beneficiation method of low-grade vulcanized lead ore deposit described in the present embodiment, there is ore grinding processing, second of ore grinding twice
Miberal powder it is thinner than the miberal powder of second conventional of ore grinding, middle valuable mineral and the dissociation of gangue mineral of ore can be improved
Degree, is conducive to selected operation below, and reduce the consumption of floating agent；In floatation process, the floating agent of same type
One is only used, and dosage is small, can reduce cost；Beneficiation method also described in the present embodiment, it is only smart twice
Industry is elected to be, flow is shorter, technique is simple, the rate of recovery is high, obtained lead concentrate grade is very high, without further optimization concentrate
Grade, so that industrial cost can also be reduced.
Embodiment 3.
Concrete operation step is as follows：
(1) earlier machine：By crushing raw ore, first time ore grinding, reach the miberal powder content that fineness is less than 0.074mm
49%, miberal powder adds water and stirred, and obtains ore pulp 1, the mass fraction of ore pulp 1 is 40%.
(2) roughing operation：Waterglass 40g/t is added into rougher tailings, stirs 13 minutes, adds sodium ethyl xanthate
12g/t and terpenic oil 8g/t, stirring is carrying out roughing after 2 minutes, and the roughing time is 7 minutes, obtains rougher tailings and roughing bubble
Foam, roughing foam is lead rough concentrate, and the lead tolerance of lead rough concentrate is 48.42%.
(3) operation is scanned：Sodium ethyl xanthate 6g/t and terpenic oil 3g/t is added into rougher tailings, after stirring 2 minutes again
Scanned, scan the time for 2 minutes, obtained scanning mine tailing and scan foam, scan foam and return to roughing operation, scan tail
Ore deposit is true tailings；
(4) second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, will to second of mog is met
Add water and size mixing in the ore pulp asked, the mass fraction to ore pulp is 18%, obtains ore pulp 2；Second of mog will not met will
The ore pulp asked returns to second of ore grinding.Wherein, the miberal powder content that second of ore grinding makes fineness be less than 0.044mm reaches
66.02%.
(5) selected operation for the first time：Waterglass 30g/t is added into ore pulp 2, stirs 3 minutes, adds sodium ethyl xanthate
3g/t and terpenic oil 1g/t, stirring 1 minute after carry out again it is selected, the selected time be 2 minutes, obtain selected 1 foam and selected 1 tail
Ore deposit.
(6) it is selected for the second time：Sodium ethyl xanthate 1g/t and terpenic oil 1g/t is added into selected 1 mine tailing, after stirring 1 minute
Carry out again it is selected, the selected time be 1 minute, obtain selected 2 foam and selected 2 mine tailing, selected 2 mine tailing returns to roughing operation.
(7) selected 1 foam and the dehydration of selected 2 foamed filter, obtain final lead concentrate, the mass fraction of lead concentrate reclaimed water
For 6%.
The measure of yield and lead grade, number have been carried out to selected operation for the first time, second selected operation, mine tailing and raw ore
According to it is as shown in the table.
Table 3
As shown in Table 3, the content of lead is 82.01% in the final lead concentrate of the present embodiment, and lead recovery is 96.62%.
A kind of beneficiation method of low-grade vulcanized lead ore deposit described in the present embodiment, there is ore grinding processing, second of ore grinding twice
Miberal powder it is thinner than the miberal powder of second conventional of ore grinding, middle valuable mineral and the dissociation of gangue mineral of ore can be improved
Degree, is conducive to selected operation below, and reduce the consumption of floating agent；In floatation process, the floating agent of same type
One is only used, and dosage is small, can reduce cost；Beneficiation method also described in the present embodiment, it is only smart twice
Industry is elected to be, flow is shorter, technique is simple, the rate of recovery is high, obtained lead concentrate grade is very high, without further optimization concentrate
Grade, so that industrial cost can also be reduced.
It is described above, only it is the preferred embodiment of the embodiment of the present invention, not makees any shape to the embodiment of the present invention
Limitation in formula, according to the embodiment of the present invention technical spirit above example is made any simple modification, equivalent variations
With modification, in the range of still falling within technical scheme of the embodiment of the present invention.
Claims (8)
1. a kind of beneficiation method of low-grade vulcanized lead ore deposit, it is characterised in that comprise the following steps：
(1) earlier machine：Raw ore obtains miberal powder, miberal powder adds water and stirred, and obtains ore pulp 1 through broken, first time ore grinding；
Wherein, the miberal powder content that first time ore grinding should make fineness be less than 0.074mm reaches more than 47%；
(2) roughing operation：Inhibitor 38-42g/t is added into ore pulp 1, stirring adds collecting agent 11-13g/t and foaming agent 7-
9g/t, roughing is being carried out after stirring, obtains rougher tailings and roughing foam, and roughing foam is lead rough concentrate；
(3) operation is scanned：Collecting agent 6-7g/t and foaming agent 3-4g/t is added into rougher tailings, is scanned again after stirring,
Obtain scanning mine tailing and scan foam, scan foam and return to roughing operation, scan mine tailing for true tailings；
(4) second of grinding operation：Lead rough concentrate carries out second ore grinding, classification, to meeting second of mog requirement
Add water and size mixing in ore pulp, the mass fraction to ore pulp is 18-31%, obtains ore pulp 2；Wherein, second of ore grinding should make fineness small
More than 66% is reached in 0.044mm miberal powder content；
(5) selected operation for the first time：Inhibitor 30-50g/t is added into ore pulp 2, stirring adds collecting agent 3-5g/t and risen
Infusion 1-2g/t, carries out selected again after stirring, obtain selected 1 foam and selected 1 mine tailing；
(6) it is selected for the second time：Into selected 1 mine tailing add collecting agent 1-2g/t and foaming agent 1g/t, carried out again after stirring it is selected,
Selected 2 foam and selected 2 mine tailing are obtained, selected 2 mine tailing returns to roughing operation；
(7) selected 1 foam and selected 2 foamed filter are dehydrated, obtain described lead concentrate.
2. beneficiation method according to claim 1, it is characterised in that
The inhibitor is waterglass, and the collecting agent is sodium ethyl xanthate, and the foaming agent is terpenic oil.
3. beneficiation method according to claim 2, it is characterised in that
The waterglass is Na2SiO3·9H2O。
4. beneficiation method according to claim 1, it is characterised in that
In the step (1), the mass fraction of ore pulp 1 is 39-42%.
5. beneficiation method according to claim 1, it is characterised in that
The step (4) also includes：The ore pulp that second of mog requirement is not met after classification is returned into second of ore grinding.
6. beneficiation method according to claim 1, it is characterised in that
In the step (2)：Inhibitor is added into ore pulp 1, is stirred 10-15 minutes, collecting agent and foaming agent is added, 1- is stirred
Roughing is being carried out after 3 minutes, the roughing time is 5-8 minutes；
In step (3)：Collecting agent and foaming agent are added into rougher tailings, stirring is scanned again after 1-3 minutes, scans the time
For 1-3 minutes；
In step (5)：Inhibitor is added into ore pulp 2, is stirred 3-4 minutes, collecting agent and foaming agent, 1-3 points of stirring is added
Zhong Houzai progress is selected, and the selected time is 2-4 minutes；
In step (6)：Add collecting agent and foaming agent into selected 1 mine tailing, stirring carried out again after 1-3 minutes it is selected, when selected
Between be 1-3 minutes.
7. beneficiation method according to claim 1, it is characterised in that
In the step (2)：The consumption of inhibitor is 40g/t, and the consumption of collecting agent is 12g/t, and the consumption of foaming agent is 8g/t；
In the step (3)：The consumption of collecting agent is 6g/t, and the consumption of foaming agent is 3g/t.
8. beneficiation method according to claim 1, it is characterised in that
In the step (7), the mass fraction of lead concentrate reclaimed water is less than 9%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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