CN205687989U - The equipment smelted for Pb-Zn deposits - Google Patents
The equipment smelted for Pb-Zn deposits Download PDFInfo
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- CN205687989U CN205687989U CN201620601766.XU CN201620601766U CN205687989U CN 205687989 U CN205687989 U CN 205687989U CN 201620601766 U CN201620601766 U CN 201620601766U CN 205687989 U CN205687989 U CN 205687989U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses the equipment smelted for Pb-Zn deposits, including: oxidizing semlting stove, there is Pb-Zn deposits entrance, flux entrance, melting exhanst gas outlet and melt outlet, melt contains zinc oxide and lead oxide；Power frequency electric thermal reduction furnace, has melt inlet, reducing agent entrance, liquid lead outlet, slag outlet and the exhanst gas outlet on zinc, and melt inlet is connected with melt outlet；Zinc rain condenser, has containing zinc smoke inlet, liquid Zn outlet and gas exit, is connected with the exhanst gas outlet containing zinc containing zinc smoke inlet.Utilizing this equipment can to supply under high-temperature fusant state to power frequency electric thermal reduction furnace directly by after oxidized for Pb-Zn deposits fusing, in this body of heater, zinc oxide is reduced to metallic zinc steam by pyrocarbon, obtains liquid metal zinc by condensation further.Enter the lead oxide in body of heater, be reduced to liquid metal lead by pyrocarbon, drop to straight well formula power frequency muffle electric furnace bottom expansion chamber together with the liquid metal lead skim of the oxide composition such as ferrum, silicon, calcium, aluminum, magnesium.
Description
Technical field
This utility model relates to field of metallurgy.Concrete, this utility model relates to the equipment that Pb-Zn deposits is smelted.
Background technology
It mostly is mineral intergrowth based on led-zinc-silver deposit, is generally individually sorted after exploitation at present as lead concentrate and zinc concentrate, difference
Song Qian smeltery and zinc abstraction factory separately process.Owing to sorting is difficult to thoroughly, the most miscellaneous in lead concentrate have a number of zinc, zinc essence
Miscellaneous in ore deposit have a number of lead.Smelt Hou Qian factory output Zn dust Xu Song zinc factory and office reason, zinc factory output lead smelting gas Xu Song lead factory
Process.
Thus, current Pb-Zn deposits is smelted means and is still had much room for improvement.
Utility model content
This utility model is intended to solve one of above-mentioned technical problem the most to a certain extent or provide at a kind of useful
Business select.To this end, a purpose of the present utility model is that proposing one has and effectively can smelt Pb-Zn deposits
Means.
This utility model is following discovery based on inventor and completes:
During by using main frequency furnace that the melt of zinc oxide and lead oxide is carried out reduction treatment, reduzate zinc can become gas
State, reduzate lead then can maintain liquid.
At an aspect of the present utility model, the utility model proposes a kind of equipment smelted for Pb-Zn deposits, according to
Embodiment of the present utility model, this equipment includes: oxidizing semlting stove, and described oxidizing semlting stove has Pb-Zn deposits entrance, flux to enter
Mouth, melting exhanst gas outlet and melt outlet, described melt contains zinc oxide and lead oxide；Power frequency electric thermal reduction furnace, described power frequency
Electric reduction furnace has melt inlet, reducing agent entrance, liquid lead outlet, slag outlet and the exhanst gas outlet on zinc, described melt
Entrance is connected with described melt outlet；And zinc rain condenser, described zinc rain condenser has to go out containing zinc smoke inlet, liquid Zn
Mouthful and gas exit, described be connected with the described exhanst gas outlet containing zinc containing zinc smoke inlet.
Utilize this equipment, it is possible to effectively Pb-Zn deposits is smelted, as it was previously stated, utilize this technique, it is not necessary to lead
Zinc ore sorts, and directly by after oxidized for Pb-Zn deposits fusing, supplies to power frequency electric thermal reduction furnace under high-temperature fusant state,
In this body of heater, zinc oxide can be reduced to metallic zinc steam by pyrocarbon, obtains liquid metal zinc by condensation further.Enter
Lead oxide in body of heater, is reduced to liquid metal lead by pyrocarbon, with the liquid lead of the oxide such as ferrum, silicon, calcium, aluminum, magnesium composition
Slag drops to straight well formula power frequency muffle electric furnace bottom expansion chamber together.Slag lead separation is carried out at expansion chamber.Released by expansion chamber bottom
Mouth releases metallic lead.According to embodiment of the present utility model, slag can be released by expansion chamber top discharge port.After furnace slag granulating
Sell outward.
It addition, can also have following additional according to the equipment for Pb-Zn deposits smelting of this utility model above-described embodiment
Technical characteristic:
Optional, described reducing agent porch is provided with double-charging bell feeder.Thus, it is possible to significantly improve equipment sealing
Energy.
Optional, also include that waste heat boiler, the smoke inlet of described waste heat boiler are connected with described melting exhanst gas outlet.By
This, so that system waste heat is fully utilized.
Optional, also include that cleaner unit, the import of described cleaner unit are connected with the outlet flue of described waste heat boiler.
Optional, described cleaner unit is electric cleaner.
Optional, described power frequency electric thermal reduction furnace includes vertical reduction section and Horizontal sedimentation section, and described vertical reduction
It is provided with coil on the outer wall of section and described Horizontal sedimentation section.Thus, it is possible to effectively maintain furnace temperature.
Optional, by siphon port, by described melt input to described power frequency electric thermal reduction furnace.Thus, it is possible to enter one
Step raising equipment sealing property.
Optional, described reducing agent is coke.
Optional, described reducing agent farther includes magnetic conductor.
Optional, described magnetic conductor is graphite.
Optional, described graphite is the 10～50% of described reducing agent quality.
Optional, the temperature of described melt is at least 900 degrees Celsius.
Optional, discharge liquid lead by siphon port.Thus, it is possible to improve equipment sealing property further.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will be from explained below
In become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment
Become obvious and easy to understand, wherein:
Fig. 1 shows the cross section structure schematic diagram of the equipment smelted for Pb-Zn deposits of one embodiment of this utility model；
Fig. 2 shows that the part-structure in the equipment that Pb-Zn deposits is smelted of this utility model further embodiment is overlooked
Figure；
Fig. 3 shows the structural representation of the equipment smelted for Pb-Zn deposits of another embodiment of this utility model；
Fig. 4 shows the structural representation of the equipment smelted for Pb-Zn deposits of another embodiment of this utility model；
Fig. 5 shows the equipment enforcement Pb-Zn deposits smelting smelted for Pb-Zn deposits utilizing one embodiment of this utility model
The schematic flow sheet of method.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model
Restriction.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of and describe this utility model and simplify description rather than instruction or the dress of hint indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this utility model
Restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
It is mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, unless otherwise clear and definite restriction.Common skill for this area
For art personnel, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
Of the present utility model embodiment is described below in detail, and the embodiment described below with reference to accompanying drawing is exemplary
, it is intended to it is used for explaining this utility model, and it is not intended that to restriction of the present utility model.
All lists of references mentioned in this article are all incorporated herein by.
Unless there are indicating on the contrary, all technology used herein and scientific terminology all have and this utility model art
The identical implication that those of ordinary skill is generally understood.Unless there are indicating on the contrary, technology that is used herein or that mention is
Standard technique known to a person of ordinary skill in the art.Material, method and example are only used as to illustrate, rather than are any limitation as.
This utility model is following discovery based on inventor and completes:
During by using main frequency furnace that the melt of zinc oxide and lead oxide is carried out reduction treatment, reduzate zinc can become gas
State, reduzate lead then can keep liquid.
At an aspect of the present utility model, the utility model proposes a kind of equipment smelted for Pb-Zn deposits, according to
Embodiment of the present utility model, with reference to Fig. 1, this equipment includes: oxidizing semlting stove 100, power frequency electric thermal reduction furnace 200 and zinc rain are cold
Condenser 300.
According to embodiment of the present utility model, oxidizing semlting stove 100 has Pb-Zn deposits entrance 101, flux entrance 102, melts
Refining exhanst gas outlet 103 and melt outlet 104, and be suitable to the mixture obtained by mix with flux by Pb-Zn deposits and carry out aoxidizing and melt
Refining, it is hereby achieved that containing zinc oxide and the melt of lead oxide.Concrete, Pb-Zn deposits can be lead zinc composite sulfuration ore deposit, and
And suitable slag former can be added during oxidizing semlting.It should be noted that those skilled in the art can be according to reality
Border needs to select the condition of the flux used and oxidizing semlting, and Pb-Zn deposits entrance 101 and flux entrance 102
Can be same entrance or independent two entrances
According to an embodiment of the present utility model, the temperature containing zinc oxide and the melt of lead oxide is at least 900 to take the photograph
Family name's degree.Thus, it is possible to improve the Environmental Protection Level that in subsequent process, Pb-Zn deposits is smelted further.
According to embodiment of the present utility model, power frequency electric thermal reduction furnace 200 has melt inlet 201, reducing agent entrance
202, liquid lead outlet 203, slag outlet 204 and containing zinc exhanst gas outlet 205, melt inlet 201 is connected with melt outlet 104,
And be suitable to utilize reducing agent, the melt containing zinc oxide and lead oxide obtained by above-mentioned is carried out in power frequency electric thermal reduction furnace
Reduction treatment and slag settlement treatment, it is hereby achieved that containing zinc flue gas, liquid lead and slag.
According to an embodiment of the present utility model, siphon port can be passed through, oxidizing semlting operation is obtained containing aerobic
The melt changing zinc and lead oxide supplies to power frequency electric thermal reduction furnace.Inventor finds by using siphon port to feed, Ke Yiyou
Effect ground feeds under air-proof condition, such that it is able to improve the efficiency that Pb-Zn deposits is smelted further.
According to further embodiment of the present utility model, with reference to Fig. 1 and Fig. 2, power frequency electric thermal reduction furnace 200 can include erecting
It is provided with coil in straight reduction section 21 and Horizontal sedimentation section 22, and the outer wall of vertical reduction section 21 and Horizontal sedimentation section 22
23.Concrete, as it is shown in figure 1, vertically the lower end passage of reduction section 21 is connected with the Upper passage of Horizontal sedimentation section 22, and
Vertically the lower end passage of reduction section 21 tilts upward, such that it is able to avoid the reducing agent adding reduction section to enter into settling section.By
This, by arranging coil on the outer wall of vertical reduction section 21 and Horizontal sedimentation section 22, use coil to produce alternating magnetic field and maintain
Reduction section and the furnace temperature of settling section, such that it is able to improve the efficiency that Pb-Zn deposits is smelted further.According to of the present utility model specifically
Embodiment, can use the induction coil of 200～400 kilowatts.
According to another embodiment of the present utility model, reducing agent can be coke.Thus, it is possible to improve lead zinc further
The efficiency of mining and metallurgy refining.
According to another embodiment of the present utility model, reducing agent may further include magnetic conductor.Thus, in outside
Under the action of alternating magnetic field that coil produces, magnetic conductor can temperature stabilization in holding furnace effectively, such that it is able to improve further
The efficiency that Pb-Zn deposits is smelted.
According to another embodiment of the present utility model, magnetic conductor can be graphite.Inventor finds that graphite can be effective
Ground magnetic conduction, and subsequent reactions will not be introduced impurity, such that it is able to improve the efficiency that Pb-Zn deposits is smelted further.Concrete,
Coke and graphite block mixture are added directly in the reduction section in power frequency electric thermal reduction furnace, and coke is used as reducing agent, graphite block
As magnetic conducting and heating material (during actual production, the carbon in graphite has certain reproducibility equally), reduction section furnace shell is outer equipped with single
Coil, during indirect current, coil produces the magnetic field of change, and graphite block is affected by this variation magnetic field starts heating also circumference
Coke and melt, maintain reaction zone thermal balance, makes the temperature of whole direct-reduction section meet the requirement of smelting charge of lead and zinc direct-reduction.
According to an embodiment of the present utility model, graphite can be the 10～50% of reducing agent quality.Thus, it is possible to enter
One step improves the efficiency that Pb-Zn deposits is smelted.Inventor finds, if the ratio of graphite is too small, then not enough so that reducing in space
Temperature stabilization, if the ratio of graphite is excessive, then can affect the efficiency of reduction treatment.
According to another embodiment of the present utility model, discharge liquid lead by siphon port.Thus, it is possible to improve further
The efficiency that Pb-Zn deposits is smelted.
According to another embodiment of the present utility model, at reducing agent entrance 202, it is provided with double-charging bell feeder 24.Specifically
, the charging bell of incandescent coke and graphite block will be filled by Special crane, accurately fall to sitting to double-charging bell feeder, then put
Lower charging bell bottom valve, incandescent coke and graphite fall in the bucket of double-charging bell feeder top, then hang away charging bell, then puts down double
The top bottom valve of bell feeder, coke and graphite fall in the bottom bucket of double-charging bell feeder, now promote top bottom valve, close
Closing gas passage, then open the bottom bottom valve of double-charging bell feeder, incandescent coke and graphite block are by reducing agent entrance the most at last
Add in power frequency electric thermal reduction furnace in reduction reaction district, and with this cycle operation, be continuously replenished Jiao of continuous consumption in reaction zone
Charcoal and graphite block.
In this step, concrete, when the melt containing zinc oxide and lead oxide falls into the reduction section of power frequency electric thermal reduction furnace
In, run into red-hot coke, reduction reaction can be occurred immediately to generate melted metallic lead, slag and contain zinc fume and an oxygen
Change the flue gas of carbon/carbon dioxide.Melted metallic lead and slag flow downward, through reduction section hypomere passage from the upper end of settling section
Passage (being inclined upwardly, in order to avoid coke and graphite block fall into precipitating phase) flows into precipitating phase.It is also provided with coil outside precipitating phase furnace shell,
Melted metallic lead can generate heat maintenance furnace temperature under the effect of variation magnetic field, thus keeps certain mobility.Finally, melt
Metallic lead siphon lead tap bottom precipitating phase is released, and a small amount of slag is after running up to a certain degree, and slag passes through top slag tap
Release.
According to embodiment of the present utility model, zinc rain condenser 300 has containing zinc smoke inlet 301, liquid Zn outlet 302
With gas exit 303, it is connected with containing zinc exhanst gas outlet 205 containing zinc smoke inlet 301, and is suitable to power frequency electric thermal reduction furnace to obtain
To the flue gas containing zinc condense, in order to obtain liquid Zn and coal gas.According to an embodiment of the present utility model, it is possible to use
The condensation to carrying out Pb-Zn deposits smelting containing zinc flue gas of the zinc rain condenser.Thus, use the zinc rain can be by containing zinc flue gas carries
Metallic zinc condenses out, and the carbon monoxide wherein carried is or/and carbon dioxide continues to exist in a gaseous form, and washes further
It is recycled with coal gas form after washing purification.Concrete, that zinc rain condenser is trapped by zinc rain liquid Zn rain lead, uses pump
Delivering to zinc liquid cooling bath, after refrigerated separation lead, part zinc liquid is cast into product coarse zinc ingot metal, and part zinc liquid returns zinc rain condenser and follows
Ring is used for trapping zinc fume.
Thus, according to the equipment smelted for Pb-Zn deposits of this utility model embodiment, it is possible to effectively Pb-Zn deposits is entered
Row is smelted, as it was previously stated, utilize this technique, it is not necessary to Pb-Zn deposits is sorted, directly by after oxidized for Pb-Zn deposits fusing,
Supplying under high-temperature fusant state to power frequency electric thermal reduction furnace, in this body of heater, zinc oxide can be reduced to metallic zinc by pyrocarbon
Steam, obtains liquid metal zinc by condensation further.Enter the lead oxide in body of heater, be reduced to liquid metal by pyrocarbon
Lead, drops to the sedimentation of straight well formula power frequency muffle electric furnace bottom together with the liquid lead skim of the oxide such as ferrum, silicon, calcium, aluminum, magnesium composition
Room.Slag lead separation is carried out at expansion chamber.Metallic lead is released by expansion chamber lower tap hole.According to embodiment of the present utility model,
Slag can be released by expansion chamber top discharge port.Sell outside after furnace slag granulating.
With reference to Fig. 3, farther include according to the equipment for Pb-Zn deposits smelting of this utility model embodiment: waste heat boiler
400。
According to embodiment of the present utility model, the smoke inlet of waste heat boiler 400 is connected with melting exhanst gas outlet 103.Thus,
So that system waste heat is fully utilized.
With reference to Fig. 4, farther include according to the equipment for Pb-Zn deposits smelting of this utility model embodiment: cleaner unit
500。
According to embodiment of the present utility model, the import of cleaner unit 500 is connected with the outlet flue of waste heat boiler 400.According to
An embodiment of the present utility model, cleaner unit can be electric cleaner.Thus, it is possible to improve efficiency of dust collection further.
According to embodiment of the present utility model, the equipment for Pb-Zn deposits smelting according to this utility model embodiment is permissible
At least there is at least one following advantage:
According to embodiment of the present utility model, simplify the mineral processing circuit of lead and zinc mineral resources, improve valency gold
Belong to the response rate, reduce beneficiation cost.
According to embodiment of the present utility model, lead zinc synchronous smelting together, eliminate the lead factory of original technique and zinc factory it
Between accompanying element produce intermediate material have bad luck the most back and forth, without intermediate material transport, reduce main Metal Production cost.
According to embodiment of the present utility model, use main frequency furnace electrothermal reduction lead zinc, it is to avoid original technique uses air-supply
Or send oxygen, rely on fuel burning heat supply just to maintain reduction process thermal balance.Fuel burning dimension temperature, exhaust gas volumn is big, and flue gas takes away waste heat relatively
Many, therefore energy consumption is higher.The lead oxide that needs in the high-temperature fusant that electrothermal reduction only adds to be reduced, zinc oxide, three oxidations
The oxygen that the materials such as two ferrum are brought into just consumes reducing agent carbon or hydrogen.Reducing agent consumption is theoretical value, and the exhaust gas volumn of generation is also for reason
Opinion value, energy consumption is minimum in all technique.
According to embodiment of the present utility model, the zinc of more than 85% is produced by wet method smelting process the most in the world, its leaching
Slagging tap, to be danger waste dump be one the difficult problem of environmental protection, and its harmless treatment, existing process energy consumption is the highest.This technique can be through
The effective zinc leaching residue that solves of Ji pollutes a difficult problem for environment.
According to authorizing utility model CN200610066648.4 " a kind of lead smelting process and for realizing the dress of this lead smelting process
Put " expanding test parameter, use vertical shaft type electrothermal reduction, lead, zinc metal recovery rate are the highest.Association unit beyond lead zinc
Element, such as Au, Ag, Cu, Ni, Bi, Sn, the overwhelming majority is reduced in entrance lead bullion, and the volatile matters such as Cd, Ga, In, Il, Ge all quilts
Condensation enters crude zinc.Along with lead bullion and crude zinc refining process, these associated metals can be reclaimed the most one by one, it is achieved high integrity profit
With.As for As, Hg accompanying element contained in lead and zinc industry, during first step oxidizing semlting, the overwhelming majority enters cigarette
Gas is removed, and does not inquires in the range of this patent.
Using ore deposit thermal resistance stove heat supply in prior art, have multiple electrode-inserting holes, electrode-inserting holes is difficult to positive confinement,
The rarest flue gas leaks and affects environment.This patent uses main frequency furnace heat supply, does not has electrode-inserting holes, body of heater all to seal, nothing
Flue gas leaks, and has optimal environmental benefit.Employing ore-smelting electric furnace reduces, and will be sprayed by air or nitrogen to ore-smelting electric furnace inside
Blowing fine coal can make zinc fume concentration reduce as reducing agent, air or nitrogen, and slag is containing Zn >=3%, and with main frequency furnace also
Stock solution state smelting charge of lead and zinc, zinc fume concentration is high, and slag can reach theoretical value≤0.22% containing zinc, so using ore-smelting electric furnace
Carry out reducing and smelting smelting charge of lead and zinc to need to be followed by fuming furnace slag is further processed, use main frequency furnace then without the most right
Slag carries out advanced treating.
Understand for convenience, below with reference to the Fig. 5 equipment smelted for Pb-Zn deposits to using this utility model embodiment
Implement Pb-Zn deposits smelting process to be described in detail.According to embodiment of the present utility model, the method includes:
S100: Pb-Zn deposits is mixed with flux, and obtained mixture is carried out oxidizing semlting
In this step Pb-Zn deposits is mixed with flux, and obtained mixture is carried out oxidizing semlting, in order to obtain
Containing zinc oxide and the melt of lead oxide.Concrete, herein Pb-Zn deposits can refer to include lead content > 40wt% high-grade
Raw ore, or general lead zine ores lead and zinc total amount after ore dressing > lead and zinc concentrate of 50wt%, and can during oxidizing semlting
To add suitable slag former.It should be noted that those skilled in the art can be according to actual needs to the flux used
And the condition of oxidizing semlting selects.
According to an embodiment of the present utility model, the temperature containing zinc oxide and the melt of lead oxide is at least 900 to take the photograph
Family name's degree.Thus, it is possible to improve the efficiency that in subsequent process, Pb-Zn deposits is smelted further.
S200: utilize reducing agent, reduces in power frequency electric thermal reduction furnace to the melt containing zinc oxide and lead oxide
Process and slag settlement treatment
In this step, utilize reducing agent, to the above-mentioned obtained melt containing zinc oxide and lead oxide in power frequency electric
Thermal reduction furnace carries out reduction treatment and slag settlement treatment, in order to obtain containing zinc flue gas, liquid lead and slag.
According to an embodiment of the present utility model, siphon port can be passed through, oxidizing semlting operation is obtained containing aerobic
The melt changing zinc and lead oxide supplies to power frequency electric thermal reduction furnace.Inventor finds by using siphon port to feed, Ke Yiyou
Effect ground feeds under air-proof condition, such that it is able to improve the Environmental Protection Level that Pb-Zn deposits is smelted further.
According to further embodiment of the present utility model, power frequency electric thermal reduction furnace can have multiple coil, and multiple
Coil is arranged on the outer wall of power frequency electric thermal reduction furnace.Thus, maintain furnace temperature by using coil to produce alternating magnetic field, thus can
To improve the efficiency that Pb-Zn deposits is smelted further.According to specific embodiment of the utility model, 200～400 kilowatts can be used
Induction coil.
According to another embodiment of the present utility model, reducing agent can be coke.Thus, it is possible to improve lead zinc further
The efficiency of mining and metallurgy refining.
According to another embodiment of the present utility model, reducing agent may further include magnetic conductor.Thus, in outside
Under the action of alternating magnetic field that coil produces, magnetic conductor can keep stablizing of in-furnace temperature effectively, such that it is able to carry further
The efficiency that high Pb-Zn deposits is smelted.
According to another embodiment of the present utility model, magnetic conductor can be graphite.Inventor finds that graphite can be effective
Ground magnetic conduction, and subsequent reactions will not be introduced impurity, such that it is able to improve the efficiency that Pb-Zn deposits is smelted further.
According to an embodiment of the present utility model, graphite can be the 10～50% of reducing agent quality.Thus, it is possible to enter
One step improves the efficiency that Pb-Zn deposits is smelted.Inventor finds, if the ratio of graphite is too small, then not enough so that reducing in space
Temperature stabilization, if the ratio of graphite is excessive, then can affect the efficiency of reduction treatment.
According to another embodiment of the present utility model, discharge liquid lead by siphon port.Thus, it is possible to improve further
The efficiency that Pb-Zn deposits is smelted.
S300: zinc flue gas will be contained and condense
In this step, the flue gas containing zinc obtained in power frequency electric thermal reduction furnace is condensed, in order to obtain liquid Zn and
Coal gas.According to an embodiment of the present utility model, it is possible to use zinc rain condenser carries out Pb-Zn deposits smelting to containing zinc flue gas
Condensation.Thus, use zinc rain will condense out containing the metallic zinc carried in zinc flue gas, and the carbon monoxide wherein carried
Or/and carbon dioxide continues to exist in a gaseous form, and it is recycled with coal gas form after further washing, purifying.
Thus, the equipment enforcement Pb-Zn deposits smelting process smelted for Pb-Zn deposits of this utility model embodiment is utilized, no
Need Pb-Zn deposits is sorted, directly by after oxidized for Pb-Zn deposits fusing, supply to power frequency electric heating under high-temperature fusant state
Reduction furnace, in this body of heater, zinc oxide can be reduced to metallic zinc steam by pyrocarbon, obtains liquid gold by condensation further
Belong to zinc.Enter the lead oxide in body of heater, be reduced to liquid metal lead by pyrocarbon, with the oxide composition such as ferrum, silicon, calcium, aluminum, magnesium
Liquid lead skim drop to straight well formula power frequency muffle electric furnace bottom expansion chamber together.Slag lead separation is carried out at expansion chamber.By expansion chamber
Lower tap hole releases metallic lead.According to embodiment of the present utility model, slag, stove can be released by expansion chamber top discharge port
Pulp water is outer after quenching to be sold.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Any one or more embodiments or example combine in an appropriate manner.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is without departing from this utility model to restriction of the present utility model
Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, revise, replace and
Modification.
Claims (6)
1. the equipment smelted for Pb-Zn deposits, it is characterised in that including:
Oxidizing semlting stove, described oxidizing semlting stove has Pb-Zn deposits entrance, flux entrance, melting exhanst gas outlet and melt outlet,
Described melt contains zinc oxide and lead oxide；
Power frequency electric thermal reduction furnace, described power frequency electric thermal reduction furnace has melt inlet, reducing agent entrance, liquid lead outlet, slag
Outlet and the exhanst gas outlet on zinc, described melt inlet is connected with described melt outlet；And
Zinc rain condenser, described zinc rain condenser has containing zinc smoke inlet, liquid Zn outlet and gas exit, described containing zinc cigarette
Gas entrance is connected with the described exhanst gas outlet containing zinc.
Equipment the most according to claim 1, it is characterised in that described reducing agent porch is provided with double-charging bell feeder.
Equipment the most according to claim 1 and 2, it is characterised in that also include waste heat boiler, described waste heat boiler enter cigarette
Mouth is connected with described melting exhanst gas outlet.
Equipment the most according to claim 3, it is characterised in that also including cleaner unit, the import of described cleaner unit is with described
The outlet flue of waste heat boiler is connected.
Equipment the most according to claim 4, it is characterised in that described cleaner unit is electric cleaner.
Equipment the most according to claim 1, it is characterised in that described power frequency electric thermal reduction furnace includes vertical reduction section and crouches
It is provided with coil on formula settling section, and the outer wall of described vertical reduction section and described Horizontal sedimentation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601766.XU CN205687989U (en) | 2016-06-17 | 2016-06-17 | The equipment smelted for Pb-Zn deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601766.XU CN205687989U (en) | 2016-06-17 | 2016-06-17 | The equipment smelted for Pb-Zn deposits |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907988A (en) * | 2016-06-17 | 2016-08-31 | 中国恩菲工程技术有限公司 | Device for lead and zinc ore smelting |
| CN112323092A (en) * | 2020-10-21 | 2021-02-05 | 华中科技大学 | Method and system for hydrogen production and electricity production by two-step thermochemical cycle water decomposition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105907988A (en) * | 2016-06-17 | 2016-08-31 | 中国恩菲工程技术有限公司 | Device for lead and zinc ore smelting |
| CN112323092A (en) * | 2020-10-21 | 2021-02-05 | 华中科技大学 | Method and system for hydrogen production and electricity production by two-step thermochemical cycle water decomposition |
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