CN107597415A - A kind of method of the rate of recovery of zinc in raising zinc smoke - Google Patents
A kind of method of the rate of recovery of zinc in raising zinc smoke Download PDFInfo
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Abstract
The invention discloses a kind of method for improving the rate of recovery of zinc in zinc smoke, belong to zinc recovering field.A kind of method of the rate of recovery of zinc in raising zinc smoke, zinc smoke is made into certain pulp density, agitating device is squeezed into by Pulp pump to be stirred, calgon progress ore pulp is added while stirring to disperse, obtain scattered ore pulp, zinc-containing dust raw material is classified by scattered ore pulp into classifying equipoment, obtain coarse grain mineral, fine mineral and middle grain mineral, coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extraction thing containing zinc concentrate simultaneously adds iron mineral sorting ball into the solution after reselection operation and stirred, sort its iron-bearing mineral, it can realize the Zn-ef ficiency rate of recovery that can be improved in zinc smoke, technique is simple, it is easy to operate, zinc need not be enriched with to certain grade the high efficiente callback that can be realized as zinc in zinc smoke, improve the economic benefit of enterprise.
Description
Technical field
The present invention relates to zinc recovering field, more specifically to a kind of side for improving the rate of recovery of zinc in zinc smoke
Method.
Background technology
With the fast development of China's steel and iron industry, the quantity that dust is produced during blast furnace ironmaking is more and more.The powder
Dirt containing materials such as zinc, iron, lead, such as uses directly as returning mine mostly, then the circulation collection of the element such as potassium, sodium, zinc can give height
The operation of stove is negatively affected.Existing most producers all take stacking to be handled, and cause to take a large amount of soils, to surrounding environment
Pollute, while also result in the waste of the resources such as zinc contained in dust, iron, carbon.Therefore zinc smoke is carried out to integrate profit
With not only with good economic benefit, while there is very high environmental benefit and social benefit.For this how using it is advanced,
Practical new and high technology, innoxious, recycling comprehensive treatment is carried out to zinc smoke, it is important to be that current iron and steel enterprise need to study
Problem.
Zinc is most important a kind of element in zinc smoke, and the extraction to zinc mainly has three kinds of methods, is physics point respectively
From technology, wet underwater welding technology and pyrogenic process extractive technique.
For flue dust of the steel plant of Turkey containing zinc 33%, Orhan G research and utilizations NaOH leaches zinc dust precipitation-alkaline process electricity
Product reclaims zinc therein, extraction temperature be 95 DEG C, NaOH concentration 10M, liquid-solid ratio 7:1st, extraction time 2h, the leaching rate of zinc reach
85%.Climb after steel sorts blast furnace gas mud, iron therein, carbon, Zn content has been enriched to 45%, 75% and more than 10% respectively.
Using NH4Cl makees extractant, and carbon ammonium makees precipitating reagent, and Zn is extracted from gas mud and zinc oxide is made.The extraction yield of this method is more than
85%, ZnO purity are up to 99.5%-99.7%.
Liu Jianhui etc. is using rotary kiln reduction fuming process, i.e. " Weir is hereby " method.Using blast furnace dust as primary raw material, add
Appropriate reducing agent（Coal and coke）And the solvent of containing calcium silicon（Red soil solid emission in such as zinc sulfate production process）,
Dispensing to compound contains zinc 10% or so, and fuming process is carried out in rotary kiln.Test result indicates that:Fe in gas ash is mainly residual
Stay in kiln slag, iron content can reach 40% in slag, and the valuable metal such as Zn, Pb is enriched in product secondary zinc oxide.Zhu Yaoping with
Zn 10.5% is contained in Yunnan iron and steel enterprise, Pb 1.0%t gas ash is research object, first using under the high temperature conditions by Zn,
Pb reduction volatilizations come out, then to Zn, In fractional extraction, neutral Leaching Zinc, high temperature high acidic oils indium, finally using melting, electricity
Solution refining obtains smart indium, refined bismuth and electric zinc, and the rate of recovery of zinc is 70%-75%.
Either pyrogenic process or wet processing, zinc can be preferably isolated, but its raw material generally requires and is enriched with zinc
To certain degree.Enrichment to raw material zinc can typically use physical partition method, be mainly hydraulic cyclone in Physical separation
It is classified Cao Ke etc. and wet dezincification is carried out to gas mud using hydraulic cyclone technology, in the condition that raw material zinc content is 0.5-1.14%
Under, thickness grading is carried out using hydrocyclone, the rate of recovery of zinc is 60% or so.
Therefore, as can be seen from the above analysis, thermal process or wet processing processing zinc smoke need zinc being enriched with
The problem of rate of recovery is relatively low be present to certain grade, but when using the physical methods such as hydrocyclone to be enriched with raw material, make
Into the serious waste of resource, therefore, the rate of recovery for improving zinc in zinc smoke has for the comprehensive utilization of resources of zinc smoke
It is of great importance.
The content of the invention
1. technical problems to be solved
For problems of the prior art, it is an object of the invention to provide a kind of rate of recovery for improving zinc in zinc smoke
Method, it can realize the Zn-ef ficiency rate of recovery that can be improved in zinc smoke, and technique is simple, easy to operate, it is not necessary to by zinc
Enrichment can be realized as the high efficiente callback of zinc in zinc smoke to certain grade, improve the economic benefit of enterprise.
2. technical scheme
To solve the above problems, the present invention adopts the following technical scheme that：
The method of the rate of recovery of zinc, comprises the following steps in a kind of raising zinc smoke：
a）Zinc smoke is made into certain pulp density, squeezing into agitating device by Pulp pump is stirred, and adds while stirring
Enter calgon progress ore pulp to disperse, obtain scattered ore pulp；
b）Zinc-containing dust raw material is classified by scattered ore pulp into classifying equipoment, obtain coarse grain mineral, fine mineral and in
Grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral,；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, and enter flotation operation, then flotation zinc essence is obtained after selected twice
Ore deposit；
e）Flotation zinc concentrate carries out fire metallurgy process through tilting board concentrating box concentration, pressing filter with overflow product after being dehydrated,
Obtain zinc concentrate.
Preferably, described step a）In flowsheet of slurry agitation device include charging aperture, teeter chamber, screw shaft, return pipe
It is described and grout outlet, described teeter chamber are internally provided with screw shaft, and motor output shaft is connected below described screw shaft
Teeter chamber above be provided with charging aperture, described return pipe bottom connection teeter chamber bottom, the connection of described return pipe top
At the top of teeter chamber, described teeter chamber bottom is additionally provided with grout outlet.
Preferably, described charging aperture includes outer layer and internal layer, and interlayer is provided between described outer layer and internal layer, described
Interlayer upper end be provided with fluid pipeline, described fluid pipeline offers multiple liquid outlets to the direction of teeter chamber, described
Inlet is connected with above fluid pipeline.
Preferably, described step b）In, described classifying equipoment is using cloud tin formula classification case or mechanical agitation type waterpower
Grader.
Preferably, described step a）In, first heated after ore pulp is scattered, heating-up temperature is 55~70 DEG C, when
Between 15~30min.
Preferably, described step d）In, after underflow product, middle grain mineral and thing containing zinc concentrate are merged, then
It is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature is 40-75 DEG C, 20~50min of time.
3. beneficial effect
Compared to prior art, the advantage of the invention is that：
（1）Addition addition calgon makees dispersant while the present invention is stirred for, and enhances the repulsion between electric charge and height
Molecule steric effect, improve the dispersion effect of zinc smoke particle；
（2）According to zinc smoke particle properties, it is pressed by grading using hydraulic classification equipment, used after classification according to property
Different technological processes, hydraulic cyclone classification carries zinc, gravity treatment carries zinc and flotation puies forward the method that zinc three is combined, and controls waterpower
The overflow product design of cyclone is 10-15%, to be lowered into the mixed liquid concentration tilted in board concentrating box, accelerates settling velocity,
Improve effect of settling rate；
（3）Ore pulp can be returned teeter chamber upper end by the flowsheet of slurry agitation device of use by return pipe, make ore pulp mixing more
Add fully.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the structural representation of flowsheet of slurry agitation device of the present invention；
Fig. 3 is the sectional view at A-A in Fig. 2 of the present invention.
Label declaration in figure：
1st, inlet；2nd, charging aperture；3rd, teeter chamber；4th, screw shaft；5th, return pipe；6th, motor；7th, grout outlet；201st, outer layer；
202nd, internal layer；203rd, interlayer；204th, liquid outlet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention；Technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes；Obviously；Described embodiment is only part of the embodiment of the present invention；Rather than whole embodiment.It is based on
Embodiment in the present invention；Those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment；Belong to the scope of protection of the invention.
Embodiment 1：
Fig. 1-3 are referred to, a kind of method for improving the rate of recovery of zinc in zinc smoke, is handled using this method and contains zinc containing zinc 3%
Flue dust, comprise the following steps,
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 70 DEG C, time 15min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, then are stirred by flowsheet of slurry agitation device, are added after stirring
Heat, heating-up temperature are 40 DEG C, time 50min, and heating makes gas overflowing, reduces the influence to flotation operation, enters afterwards floating
Industry is elected to be, then flotation zinc concentrate is obtained after selected twice, wherein thick bubble generator is used in selected I, and thick bubble occurs
Bubble diameter caused by device is not less than 0.5mm, and thin bubble generator, and bubble caused by thin bubble generator are used in selected II
Diameter is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 5% product quality concentration concentrate through tilting board concentrating box, and pressing filter dehydration is laggard
Row fire metallurgy process, obtains zinc concentrate.
Embodiment 2：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 3%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 55 DEG C, time 30min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, then are stirred by flowsheet of slurry agitation device, are added after stirring
Heat, heating-up temperature are 75 DEG C, time 20min, and heating makes gas overflowing, reduces the influence to flotation operation, enters afterwards floating
Industry is elected to be, then flotation zinc concentrate is obtained after selected twice, wherein thick bubble generator is used in selected I, and thick bubble occurs
Bubble diameter caused by device is not less than 0.5mm, and thin bubble generator, and bubble caused by thin bubble generator are used in selected II
Diameter is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 20% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate.
Embodiment 3：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 3%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 62 DEG C, time 22min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, then are stirred by flowsheet of slurry agitation device, are added after stirring
Heat, heating-up temperature are 57 DEG C, time 35min, and heating makes gas overflowing, reduces the influence to flotation operation, enters afterwards floating
Industry is elected to be, then flotation zinc concentrate is obtained after selected twice, wherein thick bubble generator is used in selected I, and thick bubble occurs
Bubble diameter caused by device is not less than 0.5mm, and thin bubble generator, and bubble caused by thin bubble generator are used in selected II
Diameter is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 12% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate.
By to embodiment 1~3, drawing the following conclusions：
In the case of the zinc recovery that zinc smoke of the traditional approach recovery containing zinc 3% obtains is used as 90%, what embodiment 1 obtained
Zinc recovery is 95.21%, and the zinc recovery that embodiment 2 obtains is 94.76%, and the zinc recovery that embodiment 3 obtains is 98.53%.
Embodiment 4：
A kind of method of the rate of recovery of zinc in raising zinc smoke, zinc smoke of this method processing containing zinc 8%, including following step
Suddenly：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 70 DEG C, time 15min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, then are stirred by flowsheet of slurry agitation device, are added after stirring
Heat, heating-up temperature are 40 DEG C, time 50min, and heating makes gas overflowing, reduces the influence to flotation operation, enters afterwards floating
Industry is elected to be, then flotation zinc concentrate is obtained after selected twice, wherein thick bubble generator is used in selected I, and thick bubble occurs
Bubble diameter caused by device is not less than 0.5mm, and thin bubble generator, and bubble caused by thin bubble generator are used in selected II
Diameter is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 5% product quality concentration concentrate through tilting board concentrating box, and pressing filter dehydration is laggard
Row fire metallurgy process, obtains zinc concentrate.
Embodiment 5：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 8%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 55 DEG C, time 30min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate merges, then it is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature 75
DEG C, time 20min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation afterwards, then through twice
Flotation zinc concentrate is obtained after selected, wherein thick bubble generator is used in selected I, and bubble diameter caused by thick bubble generator
Not less than 0.5mm, thin bubble generator is used in selected II, and bubble diameter caused by thin bubble generator is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 20% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate.
Embodiment 6：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 8%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 62 DEG C, time 22min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate merges, then it is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature 57
DEG C, time 35min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation afterwards, then through twice
Flotation zinc concentrate is obtained after selected, wherein thick bubble generator is used in selected I, and bubble diameter caused by thick bubble generator
Not less than 0.5mm, thin bubble generator is used in selected II, and bubble diameter caused by thin bubble generator is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 12% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate..
By to embodiment 4~6, drawing the following conclusions：
In the case of the zinc recovery that zinc smoke of the traditional approach recovery containing zinc 8% obtains is used as 85%, what embodiment 4 obtained
Zinc recovery is 91.38%, and the zinc recovery that embodiment 5 obtains is 90.84%, and the zinc recovery that embodiment 6 obtains is 92.43%.
Embodiment 7：
A kind of method of the rate of recovery of zinc in raising zinc smoke, zinc smoke of this method processing containing zinc 5%, including following step
Suddenly：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 70 DEG C, time 15min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate merges, then it is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature 40
DEG C, time 50min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation afterwards, then through twice
Flotation zinc concentrate is obtained after selected, wherein thick bubble generator is used in selected I, and bubble diameter caused by thick bubble generator
Not less than 0.5mm, thin bubble generator is used in selected II, and bubble diameter caused by thin bubble generator is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 5% product quality concentration concentrate through tilting board concentrating box, and pressing filter dehydration is laggard
Row fire metallurgy process, obtains zinc concentrate.
Embodiment 8：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 5%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 55 DEG C, time 30min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate merges, then it is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature 75
DEG C, time 20min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation afterwards, then through twice
Flotation zinc concentrate is obtained after selected, wherein thick bubble generator is used in selected I, and bubble diameter caused by thick bubble generator
Not less than 0.5mm, thin bubble generator is used in selected II, and bubble diameter caused by thin bubble generator is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 20% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate.
Embodiment 9：
Refer to Fig. 1-3, a kind of method for improving the rate of recovery of zinc in zinc smoke, containing zinc cigarette of this method processing containing zinc 5%
Dirt, comprise the following steps：
a）Zinc smoke is made into ore pulp solution, squeezing into flowsheet of slurry agitation device by Pulp pump is stirred, and adds while stirring
Calgon, which carries out ore pulp, to be disperseed, and flowsheet of slurry agitation device includes charging aperture 2, teeter chamber 3, screw shaft 4, return pipe 5 and gone out
Mouth 7 is starched, described teeter chamber 3 is internally provided with screw shaft 4, the described lower section of the screw shaft 4 connection output shaft of motor 6, institute
The top of teeter chamber 3 stated is provided with charging aperture 2, the described bottom of the return pipe 5 connection bottom of teeter chamber 3, and described return pipe 5 pushes up
The top of end connection teeter chamber 3, the described bottom of teeter chamber 3 are additionally provided with grout outlet 7, and described charging aperture 2 includes the He of outer layer 201
Internal layer 202, is provided with interlayer 203 between described outer layer 201 and internal layer 202, the described upper end of interlayer 203 is provided with liquid line
Road, described fluid pipeline offer multiple liquid outlets 204 to the direction of teeter chamber 3, are connected with above described fluid pipeline
Inlet 1, calgon is configured to solution first when reusing, then poured into from inlet 1, solution can enter liquid
In pipeline, and then entered from liquid outlet 204 in interlayer 203, and then enter the inwall of teeter chamber 3, afterwards fall ore pulp solution
Enter charging aperture 2, in the presence of screw shaft 4 and in the presence of self gravitation, ore pulp solution is downward always, is stirred when reaching
During 3 bottom of room, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution enters return pipe 5
In, and then entered above return pipe 5 above teeter chamber 3, and then sufficient stirring can be realized, and can be with six inclined phosphorus
Sour sodium is sufficiently mixed, and is heated outside flowsheet of slurry agitation device while mixing, and heating-up temperature is 62 DEG C, time 22min, stirring
During carry out heating and can improve the cutting performance of zinc smoke internal particle, increase between solid-liquid-gas three-phase
Contact-impact power, while it is compound addition calgon make dispersant, enhance the repulsion between electric charge and macromolecule steric hindrance
Effect, the dispersion effect of zinc smoke particle is improved, obtain scattered ore pulp, then poured out from grout outlet 7, operation every time can only grasp
Make quantitative ore pulp solution, it is very few not realize overfall, it is limited to cross at most device processing；
b）Scattered ore pulp is entered into cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, fine mineral
With middle grain mineral；
c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral, iron mineral sorting ball includes the oxygen of internal layer
The zinc carbonate powder of the gentle capsule outer layer of air bag, sulfur dioxide air bag, zinc carbonate powder outer layer covers tunica fibrosa, iron ore are sorted in ball
Oxygen and sulfur dioxide gas volume ratio be 1：2, the tunica fibrosa hydrolysis of outer layer is damaged after stirring, and oxygen will be housed
Crushed with the air bag of sulfur dioxide, wherein, oxygen by containing oxidation of divalent iron ion into ferric ion, sulfur dioxide is in oxygen
Acid is produced in the presence of gas and water, guarantees solution be sour environment, and pH value goes iron ions effect more preferable less than 5, zinc carbonate and
Iron ion reacts under sour environment, can go iron ions, and is not introduced into other metal ions and enters in solution, is advantageous to carry
The purity of zinc ion in high solution；
d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with
And thing containing zinc concentrate merges, then it is stirred by flowsheet of slurry agitation device, is heated after stirring, heating-up temperature 57
DEG C, time 35min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation afterwards, then through twice
Flotation zinc concentrate is obtained after selected, wherein thick bubble generator is used in selected I, and bubble diameter caused by thick bubble generator
Not less than 0.5mm, thin bubble generator is used in selected II, and bubble diameter caused by thin bubble generator is no more than 0.3mm；
e）Flotation zinc concentrate and the overflow product of 12% product quality concentration concentrate through tilting board concentrating box, after pressing filter dehydration
Fire metallurgy process is carried out, obtains zinc concentrate.
By to embodiment 7~9, drawing the following conclusions：
In the case of the zinc recovery that zinc smoke of the traditional approach recovery containing zinc 5% obtains is used as 87%, what embodiment 7 obtained
Zinc recovery is 92.67%, and the zinc recovery that embodiment 8 obtains is 91.94%, and the zinc recovery that embodiment 9 obtains is 93.86%.
It is described above；Preferable embodiment only of the invention；But protection scope of the present invention is not limited thereto；
Any one skilled in the art the invention discloses technical scope in；Technique according to the invention scheme and its
Improve design and be subject to equivalent substitution or change；It should all cover within the scope of the present invention.
Claims (6)
- A kind of 1. method for improving the rate of recovery of zinc in zinc smoke, it is characterised in that：Comprise the following steps：a）Zinc smoke is made into certain pulp density, squeezing into agitating device by Pulp pump is stirred, and adds while stirring Enter calgon progress ore pulp to disperse, obtain scattered ore pulp；b）Zinc-containing dust raw material is classified by scattered ore pulp into classifying equipoment, obtain coarse grain mineral, fine mineral and in Grain mineral；c）Coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extract thing containing zinc concentrate and to through gravity treatment Iron mineral sorting ball is added in post-job solution and is stirred, sorts its iron-bearing mineral；d）Fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mineral with And thing containing zinc concentrate is 2 in mass ratio:3:5 are mixed, and enter flotation operation, then flotation zinc essence is obtained after selected twice Ore deposit；e）Flotation zinc concentrate carries out fire metallurgy process through tilting board concentrating box concentration, pressing filter with overflow product after being dehydrated, Obtain zinc concentrate.
- A kind of 2. method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that：Described Step a）In flowsheet of slurry agitation device include charging aperture（2）, teeter chamber（3）, screw shaft（4）, return pipe（5）And grout outlet （7）, described teeter chamber（3）It is internally provided with screw shaft（4）, described screw shaft（4）Lower section connects motor（6）Output Axle, described teeter chamber（3）Top is provided with charging aperture（2）, described return pipe（5）Bottom connects teeter chamber（3）Bottom, institute The return pipe stated（5）Top connects teeter chamber（3）Top, described teeter chamber（3）Bottom is additionally provided with grout outlet（7）.
- A kind of 3. method for improving the rate of recovery of zinc in zinc smoke according to claim 2, it is characterised in that：Described Charging aperture（2）Including outer layer（201）And internal layer（202）, described outer layer（201）And internal layer（202）Between be provided with interlayer （203）, described interlayer（203）Upper end is provided with fluid pipeline, and described fluid pipeline is to teeter chamber（3）Direction offer Multiple liquid outlets（204）, described fluid pipeline top is connected with inlet（1）.
- A kind of 4. method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that：Described Step b）In, described classifying equipoment is using cloud tin formula classification case or mechanical agitation type hydraulic classifier.
- A kind of 5. method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that：Described Step a）In, first heated after ore pulp is scattered, heating-up temperature is 55~70 DEG C, 15~30min of time.
- A kind of 6. method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that：Described Step d）Middle overflow product design is 10-15%, after underflow product, middle grain mineral and thing containing zinc concentrate are merged, then is led to Cross flowsheet of slurry agitation device to be stirred, heated after stirring, heating-up temperature is 40-75 DEG C, 20~50min of time.
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