CN107597415B - 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 methods of the rate of recovery of zinc in raising 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 by Pulp pump to be stirred, calgon is added while stirring and carries out ore pulp dispersion, obtain dispersion ore pulp, dispersion ore pulp is entered classifying equipoment to be classified zinc-containing dust raw material, 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, it extracts object containing zinc concentrate and iron mineral sorting ball is added into the solution after reselection operation and stirs, sort its iron-bearing mineral, it may be implemented to improve the Zn-ef ficiency rate of recovery in zinc smoke, simple process, it is easy to operate, it does not need that zinc is 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 fields, more specifically to a kind of side of the rate of recovery of zinc in raising zinc smoke
Method.
Background technique
With the fast development of China's steel and iron industry, the quantity that dust is generated during blast furnace ironmaking is more and more.The powder
Dirt contains the substances such as zinc, iron, lead mostly, such as uses directly as returning mine, then the circulation collection of the elements such as potassium, sodium, zinc can be to height
The operation of furnace is brought a negative impact.Existing majority producer all takes stacking to be handled, and causes to occupy a large amount of soils, to ambient enviroment
It pollutes, while also resulting in the waste of the resources such as zinc, iron contained in dust, carbon.Therefore comprehensive benefit is carried out to zinc smoke
With, it is not only with good economic efficiency, while there is very high environmental benefit and social benefit.Thus how using it is advanced,
Practical new and high technology carries out innoxious, recycling comprehensive treatment to zinc smoke, and it is important to be that current iron and steel enterprise need to study
Project.
Zinc is most important a kind of element in zinc smoke, and it is physics point respectively that the extraction of zinc, there are mainly three types of methods
From technology, wet underwater welding technology and pyrogenic process extractive technique.
Flue dust for steel plant, Turkey containing zinc 33%, Orhan G research and utilization NaOH leach zinc dust precipitation-alkaline process electricity
Product recycles zinc therein, is 95 DEG C, NaOH concentration 10M, liquid-solid ratio 7:1, extraction time 2h in extraction temperature, the leaching rate of zinc reaches
85%.It climbs after steel sorts blast furnace gas mud, iron therein, carbon, Zn content is made to be enriched to 45%, 75% and 10% or more respectively.
Using NH4Cl makees extractant, and ammonium bicarbonate makees precipitating reagent, and Zn is extracted from gas mud and zinc oxide is made.The extraction yield of this method is greater than
The purity of 85%, ZnO are up to 99.5%-99.7%.
Liu Jianhui etc. restores fuming process, i.e. " Weir is hereby " method using rotary kiln.Using blast furnace dust as primary raw material, it is added
The solvent (the red soil solid emission in such as zinc sulfate production process) of suitable reducing agent (coal and coke) and containing calcium silicon,
Ingredient to mixture contains zinc 10% or so, carries out fuming process in rotary kiln.The results showed that the Fe in gas ash is mainly residual
It stays in kiln slag, iron content can achieve 40% in slag, and the valuable metals such as Zn, Pb are enriched in product secondary zinc oxide.Zhu Yaoping with
Yunnan iron and steel enterprise contain Zn 10.5%, Pb 1.0%t gas ash be research object, first using under the high temperature conditions by Zn,
Pb reduction volatilization comes 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 can preferably isolate zinc, but its raw material generally requires and is enriched with zinc
To certain degree.Physical partition method generally can be used to the enrichment of raw material zinc, be mainly hydraulic cyclone in physical method 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 for zinc to be enriched with
To certain grade, but the physical methods such as hydrocyclone is used to there is a problem of that the rate of recovery is relatively low when being enriched with raw material, made
At the serious waste of resource, therefore, the rate of recovery for improving zinc in zinc smoke has the comprehensive utilization of resources of zinc smoke
It is of great importance.
Summary of the invention
1. technical problems to be solved
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of times of zinc in raising zinc smoke
The method of yield, it may be implemented to improve the Zn-ef ficiency rate of recovery in zinc smoke, and simple process is easy to operate, does not need
Zinc is enriched with to certain grade to the high efficiente callback that can be realized as zinc in zinc smoke, improves the economic benefit of enterprise.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that:
A kind of method of the rate of recovery of zinc in raising zinc smoke, including the following steps:
A) zinc smoke is made into certain pulp density, agitating device is squeezed by Pulp pump and is stirred, stirring it is same
When be added calgon carry out ore pulp dispersion, obtain dispersion ore pulp；
B) dispersion ore pulp is entered classifying equipoment 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, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral,；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate are that 2:3:5 is mixed in mass ratio, enter flotation operation, then obtain flotation after selected twice
Zinc concentrate；
E) flotation zinc concentrate and overflow product carry out pyrometallurgy work after pressing filter dehydration through inclination board concentrating box concentration
Skill obtains zinc concentrate.
Preferably, the flowsheet of slurry agitation device in the step a) includes feed inlet, teeter chamber, screw shaft, return pipe
And grout outlet, the teeter chamber are internally provided with screw shaft, and motor output shaft is connected below the screw shaft, it is described
Teeter chamber above be provided with feed inlet, the return pipe bottom end connects teeter chamber bottom, the return pipe top connection
At the top of teeter chamber, the teeter chamber bottom is additionally provided with grout outlet.
Preferably, the feed inlet includes outer layer and internal layer, is provided with interlayer between the outer layer and internal layer, described
Interlayer upper end be provided with fluid pipeline, the fluid pipeline offers multiple liquid outlets to the direction of teeter chamber, described
Inlet is connected with above fluid pipeline.
Preferably, in the step b), the classifying equipoment is using cloud tin formula classification case or mechanical agitation type waterpower
Grader.
Preferably, it in the step a), first being heated after carrying out ore pulp dispersion, heating temperature is 55~70 DEG C, when
Between 15~30min.
Preferably, in the step d), after underflow product, middle grain mineral and object containing zinc concentrate are merged, then
It is stirred by flowsheet of slurry agitation device, is heated after stirring, heating temperature is 40-75 DEG C, 20~50min of time.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) addition addition calgon makees dispersing agent while the present invention is stirred for, and enhances the repulsion between charge
With macromolecule steric effect, the dispersion effect of zinc smoke particle is improved；
(2) according to zinc smoke particle properties, it is pressed by grading using hydraulic classification equipment, according to property after classification
Using different process flows, hydraulic cyclone classification mentions zinc, gravity treatment mentions zinc and flotation proposes the method that zinc three combines, and controls
The overflow product design of hydrocyclone is 10-15%, with the mixed liquid concentration being lowered into inclination board concentrating box, accelerates precipitating
Speed improves effect of settling rate；
(3) ore pulp can be returned teeter chamber upper end by return pipe by the flowsheet of slurry agitation device used, mix ore pulp
More sufficiently.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is the structural schematic diagram of flowsheet of slurry agitation device of the present invention；
Fig. 3 is the cross-sectional view in Fig. 2 of the present invention at A-A.
Figure label explanation:
1, inlet；2, feed inlet；3, teeter chamber；4, screw shaft；5, return pipe；6, motor；7, grout outlet；201, outer
Layer；202, internal layer；203, interlayer；204, liquid outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
Embodiment 1:
Fig. 1-3 is please referred to, a method of the rate of recovery improving zinc in zinc smoke is handled using this method containing zinc 3%
Zinc smoke includes the following steps,
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 70 DEG C, the time
15min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate are that 2:3:5 is mixed, then is stirred by flowsheet of slurry agitation device in mass ratio, are carried out after stirring
Heating, heating temperature are 40 DEG C, time 50min, and heating makes gas overflowing, reduces the influence to flotation operation, enters later
Flotation operation, then flotation zinc concentrate is obtained after selected twice, wherein using thick bubble generator in selected I, and thick bubble hair
The bubble diameter that raw device generates is not less than 0.5mm, and thin bubble generator, and the gas that thin bubble generator generates are used in selected II
Bulb diameter is no more than 0.3mm；
E) flotation zinc concentrate and the overflow product of 5% product quality concentration are concentrated through inclination board concentrating box, pressing filter dehydration
After carry out fire metallurgy process, obtain zinc concentrate.
Embodiment 2:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 3%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 55 DEG C, the time
30min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate are that 2:3:5 is mixed, then is stirred by flowsheet of slurry agitation device in mass ratio, are carried out after stirring
Heating, heating temperature are 75 DEG C, time 20min, and heating makes gas overflowing, reduces the influence to flotation operation, enters later
Flotation operation, then flotation zinc concentrate is obtained after selected twice, wherein using thick bubble generator in selected I, and thick bubble hair
The bubble diameter that raw device generates is not less than 0.5mm, and thin bubble generator, and the gas that thin bubble generator generates are used in selected II
Bulb diameter is no more than 0.3mm；
E) flotation zinc concentrate and the overflow product of 20% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
Embodiment 3:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 3%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 62 DEG C, the time
22min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate are that 2:3:5 is mixed, then is stirred by flowsheet of slurry agitation device in mass ratio, are carried out after stirring
Heating, heating temperature are 57 DEG C, time 35min, and heating makes gas overflowing, reduces the influence to flotation operation, enters later
Flotation operation, then flotation zinc concentrate is obtained after selected twice, wherein using thick bubble generator in selected I, and thick bubble hair
The bubble diameter that raw device generates is not less than 0.5mm, and thin bubble generator, and the gas that thin bubble generator generates are used in selected II
Bulb diameter is no more than 0.3mm；
E) flotation zinc concentrate and the overflow product of 12% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
By being concluded that Examples 1 to 3
In the case where using the obtained zinc recovery of traditional approach zinc smoke of the recycling containing zinc 3% to be 90%, embodiment 1 must
The zinc recovery arrived 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, this method handle the zinc smoke containing zinc 8%, including under
Column step:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 70 DEG C, the time
15min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate are that 2:3:5 is mixed, then is stirred by flowsheet of slurry agitation device in mass ratio, are carried out after stirring
Heating, heating temperature are 40 DEG C, time 50min, and heating makes gas overflowing, reduces the influence to flotation operation, enters later
Flotation operation, then flotation zinc concentrate is obtained after selected twice, wherein using thick bubble generator in selected I, and thick bubble hair
The bubble diameter that raw device generates is not less than 0.5mm, and thin bubble generator, and the gas that thin bubble generator generates are used in selected II
Bulb diameter is no more than 0.3mm；
E) flotation zinc concentrate and the overflow product of 5% product quality concentration are concentrated through inclination board concentrating box, pressing filter dehydration
After carry out fire metallurgy process, obtain zinc concentrate.
Embodiment 5:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 8%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 55 DEG C, the time
30min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate merge, then are stirred by flowsheet of slurry agitation device, are heated after stirring, and heating temperature is
75 DEG C, time 20min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation later, then through two
Secondary selected rear acquisition flotation zinc concentrate, wherein using thick bubble generator in selected I, and the bubble that thick bubble generator generates is straight
Diameter is not less than 0.5mm, thin bubble generator is used in selected II, and the bubble diameter that thin bubble generator generates is no more than
0.3mm；
E) flotation zinc concentrate and the overflow product of 20% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
Embodiment 6:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 8%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 62 DEG C, the time
22min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate merge, then are stirred by flowsheet of slurry agitation device, are heated after stirring, and heating temperature is
57 DEG C, time 35min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation later, then through two
Secondary selected rear acquisition flotation zinc concentrate, wherein using thick bubble generator in selected I, and the bubble that thick bubble generator generates is straight
Diameter is not less than 0.5mm, thin bubble generator is used in selected II, and the bubble diameter that thin bubble generator generates is no more than
0.3mm；
E) flotation zinc concentrate and the overflow product of 12% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
By being concluded that embodiment 4~6
In the case where using the obtained zinc recovery of traditional approach zinc smoke of the recycling containing zinc 8% to be 85%, embodiment 4 must
The zinc recovery arrived 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, this method handle the zinc smoke containing zinc 5%, including under
Column step:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 70 DEG C, the time
15min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate merge, then are stirred by flowsheet of slurry agitation device, are heated after stirring, and heating temperature is
40 DEG C, time 50min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation later, then through two
Secondary selected rear acquisition flotation zinc concentrate, wherein using thick bubble generator in selected I, and the bubble that thick bubble generator generates is straight
Diameter is not less than 0.5mm, thin bubble generator is used in selected II, and the bubble diameter that thin bubble generator generates is no more than
0.3mm；
E) flotation zinc concentrate and the overflow product of 5% product quality concentration are concentrated through inclination board concentrating box, pressing filter dehydration
After carry out fire metallurgy process, obtain zinc concentrate.
Embodiment 8:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 5%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 55 DEG C, the time
30min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate merge, then are stirred by flowsheet of slurry agitation device, are heated after stirring, and heating temperature is
75 DEG C, time 20min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation later, then through two
Secondary selected rear acquisition flotation zinc concentrate, wherein using thick bubble generator in selected I, and the bubble that thick bubble generator generates is straight
Diameter is not less than 0.5mm, thin bubble generator is used in selected II, and the bubble diameter that thin bubble generator generates is no more than
0.3mm；
E) flotation zinc concentrate and the overflow product of 20% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
Embodiment 9:
Fig. 1-3 is please referred to, a method of the rate of recovery of zinc in zinc smoke being improved, this method processing contains zinc containing zinc 5%
Flue dust, including the following steps:
A) zinc smoke is made into ore pulp solution, flowsheet of slurry agitation device is squeezed by Pulp pump and is stirred, while stirring
Calgon is added and carries out ore pulp dispersion, flowsheet of slurry agitation device includes feed inlet 2, teeter chamber 3, screw shaft 4, return pipe 5
With grout outlet 7, the teeter chamber 3 is internally provided with screw shaft 4, and connection motor 6 exports below the screw shaft 4
Axis, feed inlet 2 is provided with above the teeter chamber 3, and 5 bottom end of return pipe connects 3 bottom of teeter chamber, the overfall
5 top of pipe connects 3 top of teeter chamber, and 3 bottom of teeter chamber is additionally provided with grout outlet 7, and the feed inlet 2 includes outer layer
201 and internal layer 202, interlayer 203 is provided between the outer layer 201 and internal layer 202,203 upper end of interlayer is provided with
Fluid pipeline, the fluid pipeline offer multiple liquid outlets 204, the fluid pipeline top to the direction of teeter chamber 3
It is connected with inlet 1, calgon is configured to solution first when reusing, is then poured into from inlet 1, solution can enter
It is entered in interlayer 203 into fluid pipeline, and then from liquid outlet 204, and then enters 3 inner wall of teeter chamber, later by ore pulp
Solution pours into feed inlet 2, and under the action of screw shaft 4 and under the action of self gravity, ore pulp solution is downward always, when arriving
When up to 3 bottom of teeter chamber, due to the extruding of top ore pulp solution and the effect of screw shaft 4, fraction pulp solution is entered
In return pipe 5, and then entered above teeter chamber 3 above return pipe 5, and then can be realized sufficient stirring, and can
It is sufficiently mixed with calgon, is heated outside flowsheet of slurry agitation device while mixing, heating temperature is 62 DEG C, the time
22min, heating is carried out during stirring can be improved the cutting performance of zinc smoke internal particle, increase solid-liquid-
Contact-impact power between gas three-phase, while compound addition calgon makees dispersing agent, enhance repulsion between charge and
Macromolecule steric effect improves the dispersion effect of zinc smoke particle, obtains dispersion ore pulp, then pour out from grout outlet 7, every time
Operation can only operate quantitative ore pulp solution, very few that overfall cannot be achieved, and excessively then device processing is limited；
B) dispersion ore pulp is entered cloud tin formula classification case to be classified zinc-containing dust raw material, obtains coarse grain mineral, particulate
Mineral and middle grain mineral；
C) coarse grain mineral are entered into reselection operation after overflowball mill carries out ore grinding, extracts object containing zinc concentrate and to warp
Iron mineral sorting ball is added in solution after reselection operation and stirs, sorts its iron-bearing mineral, it includes internal layer that iron mineral, which sorts ball,
Breathing bag, the gentle capsule outer layer of sulfur dioxide air bag zinc carbonate powder, zinc carbonate powder outer layer covers tunica fibrosa, iron ore sorting
The volume ratio of oxygen and sulfur dioxide gas in ball is 1:2, and the tunica fibrosa of outer layer hydrolyzes damaged after stirring, and will be equipped with
The air bag of oxygen and sulfur dioxide is broken, wherein oxygen is by the oxidation of divalent iron ion contained at ferric ion, sulfur dioxide
Acid is generated under the action of oxygen and water, guarantee solution is acidic environment, and pH value goes iron ions effect more preferable, carbonic acid less than 5
Zinc reacts under acidic environment with iron ion, can go iron ions, and is not introduced into other metal ions and enters in solution, favorably
In the purity for improving zinc ion in solution；
D) fine mineral obtains underflow product and overflow product after hydroclone classification, by underflow product, middle grain mine
Object and object containing zinc concentrate merge, then are stirred by flowsheet of slurry agitation device, are heated after stirring, and heating temperature is
57 DEG C, time 35min, heating makes gas overflowing, reduces the influence to flotation operation, enters flotation operation later, then through two
Secondary selected rear acquisition flotation zinc concentrate, wherein using thick bubble generator in selected I, and the bubble that thick bubble generator generates is straight
Diameter is not less than 0.5mm, thin bubble generator is used in selected II, and the bubble diameter that thin bubble generator generates is no more than
0.3mm；
E) flotation zinc concentrate and the overflow product of 12% product quality concentration are concentrated through inclination board concentrating box, and pressing filter is de-
Fire metallurgy process is carried out after water, obtains zinc concentrate.
By being concluded that embodiment 7~9
In the case where using the obtained zinc recovery of traditional approach zinc smoke of the recycling containing zinc 5% to be 87%, embodiment 7 must
The zinc recovery arrived 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；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Anyone skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；It should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of method for improving the rate of recovery of zinc in zinc smoke, it is characterised in that: include the following steps:
A) zinc smoke is made into certain pulp density, agitating device is squeezed by Pulp pump and is stirred, stirring while adds
Enter calgon and carry out ore pulp dispersion, obtains dispersion ore pulp；
B) dispersion ore pulp is entered classifying equipoment and is classified zinc-containing dust raw material, 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, extracts object containing zinc concentrate and to through gravity treatment
Iron mineral sorting ball is added in post-job solution and stirs, 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 object containing zinc concentrate is that 2:3:5 is mixed in mass ratio, enters flotation operation, then flotation zinc essence is obtained after selected twice
Mine；
E) flotation zinc concentrate and overflow product carry out fire metallurgy process after pressing filter dehydration through inclination board concentrating box concentration,
Obtain zinc concentrate.
2. a kind of method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that: described
Flowsheet of slurry agitation device in step a) includes feed inlet (2), teeter chamber (3), screw shaft (4), return pipe (5) and grout outlet
(7), the teeter chamber (3) are internally provided with screw shaft (4), connection motor (6) output below the screw shaft (4)
Axis is provided with feed inlet (2) above the teeter chamber (3), and the return pipe (5) bottom end connects teeter chamber (3) bottom, institute
At the top of return pipe (5) top connection teeter chamber (3) stated, the teeter chamber (3) bottom is additionally provided with grout outlet (7).
3. a kind of method for improving the rate of recovery of zinc in zinc smoke according to claim 2, it is characterised in that: described
Feed inlet (2) includes outer layer (201) and internal layer (202), is provided with interlayer between the outer layer (201) and internal layer (202)
(203), the interlayer (203) upper end is provided with fluid pipeline, and the fluid pipeline is offered to the direction of teeter chamber (3)
Multiple liquid outlets (204), the fluid pipeline top are connected with inlet (1).
4. a kind of method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that: described
In step b), the classifying equipoment is using cloud tin formula classification case or mechanical agitation type hydraulic classifier.
5. a kind of method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that: described
In step a), agitating device is heated simultaneously when carrying out the stirring in ore pulp dispersion, and heating temperature is 55~70 DEG C, the time 15
~30min.
6. a kind of method for improving the rate of recovery of zinc in zinc smoke according to claim 1, it is characterised in that: described
Overflow product design is 10-15% in step d), after underflow product, middle grain mineral and object containing zinc concentrate are merged, then is led to
It crosses flowsheet of slurry agitation device to be stirred, be heated after stirring, heating temperature is 40-75 DEG C, 20~50min of time.
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| JP2005314736A (en) * | 2004-04-28 | 2005-11-10 | Daihen Corp | Method for separating zinc and aluminum from zinc-aluminum thermal spray dust |
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| CN101514400A (en) * | 2009-03-09 | 2009-08-26 | 史汉祥 | A method for treating zinc smoke |
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| CN106119534A (en) * | 2016-08-01 | 2016-11-16 | 江苏省冶金设计院有限公司 | Process the method and system of zinc leaching residue |
| CN106216086A (en) * | 2016-08-15 | 2016-12-14 | 大连地拓重工有限公司 | A kind of method of Pb-Zn tailings comprehensive recovery of lead zinc |
| CN107175152A (en) * | 2017-06-12 | 2017-09-19 | 东北大学 | A kind of new milling method for being used to optimize Sphalerite flotation behavior |
-
2017
- 2017-09-27 CN CN201710892597.9A patent/CN107597415B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005314736A (en) * | 2004-04-28 | 2005-11-10 | Daihen Corp | Method for separating zinc and aluminum from zinc-aluminum thermal spray dust |
| RU2340403C2 (en) * | 2006-02-08 | 2008-12-10 | Валерий Хакимзянович Валеев | Method of processing of zinc-containing dusts and slags of metallurgy and mining production |
| CN101514400A (en) * | 2009-03-09 | 2009-08-26 | 史汉祥 | A method for treating zinc smoke |
| CN104475339A (en) * | 2014-12-11 | 2015-04-01 | 江西一元再生资源有限公司 | Method for comprehensively recovering lead, zinc, lithium, niobium and rubidium from tailings |
| CN106119534A (en) * | 2016-08-01 | 2016-11-16 | 江苏省冶金设计院有限公司 | Process the method and system of zinc leaching residue |
| CN106216086A (en) * | 2016-08-15 | 2016-12-14 | 大连地拓重工有限公司 | A kind of method of Pb-Zn tailings comprehensive recovery of lead zinc |
| CN107175152A (en) * | 2017-06-12 | 2017-09-19 | 东北大学 | A kind of new milling method for being used to optimize Sphalerite flotation behavior |
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