CN108504876A

CN108504876A - Anode copper production method

Info

Publication number: CN108504876A
Application number: CN201810411600.5A
Authority: CN
Inventors: 李东波; 陆志方; 李兵; 梁帅表; 尉克俭; 刘诚; 黎敏; 茹洪顺; 蒋继穆; 曹珂菲; 张海鑫; 颜杰; 李锋; 陆金忠; 周钢; 刘恺
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2017-06-14
Filing date: 2018-05-02
Publication date: 2018-09-07
Also published as: CN107326195A; CN108504875B; CN108504875A; CN108611499A

Abstract

The present invention provides a kind of anode copper production methods.The production method includes the following steps：Copper matte regulus is delivered to and is made in copper stove, and sprays into oxygen-enriched air in making copper stove and oxidation processes is carried out to copper matte regulus, so that copper matte regulus carries out making copper reaction, generates anode copper；Wherein, the percent by volume of oxygen is 30~80% in oxygen-enriched air.The present invention has carried out oxidation processes under high oxygen-enriched state to copper matte regulus, brings it about and makes copper reaction, and a step can be changed into anode copper from copper matte regulus, enormously simplify the production technology of anode copper, improve the production efficiency of anode copper, and saved production cost.

Description

Anode copper production method

Technical field

This application involves copper metallurgy fields, in particular to a kind of anode copper production method.

Background technology

Traditional copper smelting by pyrometallurgy technique, including three melting, blowing, refining steps, wherein smelting furnace is by copper concentrate melting At the matte (being also copper matte regulus) of cupric 40~60%；Converting furnace is by the blowing refinement of the matte at blister copper；Refining furnace (anode furnace) is by blister copper It is refined into anode copper, subsequently sends to electrolysis production cathode plate.The production procedure need to pass through blowing and essence from copper matte regulus to anode copper Two steps are refined, production procedure is long, and efficiency is low, and cost is relatively excessively high.

Invention content

The main purpose of the application is to provide a kind of anode copper production method, with solve the prior art by copper matte regulus to sun The problem that the production procedure of pole copper is long, efficiency is low, production cost is high.

To achieve the goals above, according to the one side of the application, a kind of anode copper production method is provided comprising Following steps：Copper matte regulus is delivered to and is made in copper stove, and sprays into oxygen-enriched air in making copper stove and oxidation processes is carried out to copper matte regulus, so that Copper matte regulus carries out making copper reaction, generates anode copper；Wherein, the percent by volume of oxygen is 30~80% in oxygen-enriched air.

Further, in the step of making copper reaction, while cold burden being added in copper stove to making, and/or is sprayed into making in copper stove Water mist, and/or cooling element is set outside the furnace body for making copper stove；Wherein cold burden includes copper scap, adopting electrolysis residual pole copper and solid-state It is one or more in copper matte regulus.

Further, it in the step of making copper reaction, after the step of carrying out oxidation processes, obtains metallic copper and makes copper Slag, when make in the metallic copper in copper stove it is oxygen-containing less than 0.2wt% when, will make copper ashes discharge make copper stove, metallic copper is as anode copper； When make in the metallic copper in copper stove it is oxygen-containing higher than 0.2wt% when, will make copper ashes discharge make copper stove after, reduction is passed through in copper stove to making Agent obtains anode copper to carry out reduction reaction to the Cu oxide impurity in metallic copper.

Further, in the step of carrying out oxidation processes to copper matte regulus, flux is added from the top for making copper stove；Meanwhile it adopting Oxidation processes are carried out to penetrating oxygen-enriched air in copper stove is made with the mode of bottom blowing, or optionally sprays into reducing agent and restore instead It answers.

Further, flux is selected from quartz and/or lime stone.

Further, reducing agent is one or more in natural gas, liquefied petroleum gas and solid carbon based reductive.

Further, solid carbon based reductive is fine coal and/or lump coal.

Further, the copper content of copper matte regulus is more than or equal to 70wt%.

Further, the copper content of copper matte regulus is 70~78wt%.

In above-mentioned anode copper production method provided by the invention, copper matte regulus is delivered to and is made in copper stove, and is sprayed in making copper stove Enter oxygen-enriched air and oxidation processes are carried out to copper matte regulus, so that copper matte regulus carries out making copper reaction, generates anode copper；Wherein, the oxygen-enriched sky The percent by volume of oxygen is 30~80% in gas.The present invention has carried out oxidation processes under high oxygen-enriched state to copper matte regulus, makes it Copper reaction is made, a step can be changed into anode copper from copper matte regulus, enormously simplify the production technology of anode copper, improve anode The production efficiency of copper, and saved production cost.

Description of the drawings

The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：

Fig. 1 shows the structural schematic diagram for making copper stove provided according to a kind of embodiment of the application；

Fig. 2 shows the structural schematic diagrams of the copper metallurgy system provided according to a kind of embodiment of the application.

Wherein, above-mentioned attached drawing includes the following drawings label：

10, smelting furnace；20, copper stove is made；30, CR stoves；31, fuming chamber is restored；32, sedimentation chamber；33, partition wall；40, casting is set It is standby.

Specific implementation mode

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.

As background technology is introduced, the copper smelting method flow of the prior art is tediously long, the low production efficiency of anode copper, life It produces of high cost.In order to solve this problem, the present invention provides a kind of anode copper production methods comprising following steps：By copper matte regulus Be delivered to and make in copper stove, and spray into oxygen-enriched air in making copper stove and oxidation processes are carried out to copper matte regulus so that copper matte regulus carry out making copper it is anti- It answers, generates anode copper；Wherein, the percent by volume of oxygen is 30~80% in oxygen-enriched air.The present invention is under high oxygen-enriched state Oxidation processes have been carried out to copper matte regulus, has brought it about and makes copper reaction, a step can be changed into anode copper from copper matte regulus, enormously simplify sun The production technology of pole copper, improves the production efficiency of anode copper, and has saved production cost.

It is above-mentioned to make copper reaction to direct output anode copper.In a preferred embodiment, the step of making copper reaction In, while cold burden being added in copper stove to making, and/or water mist is sprayed into copper stove to making, and/or be arranged outside the furnace body for making copper stove Cooling element；Wherein cold burden includes one or more in copper scap, adopting electrolysis residual pole copper and solid-state copper matte regulus.

To shorten flow, CN103382528 proposes a kind of two step copper metallurgy techniques, and the technique is first in smelting furnace by copper essence Mine is smelted into the matte of cupric 65~78%, and redox reaction is then carried out in converting furnace directly produces anode copper.The party Method is primarily present thermal balance question, and the smoke problem brought by it：Redox reaction in converting furnace releases big calorimetric, These heat must be taken away by certain mode to maintain thermal balance；The technique is passed through by the amount of adjusting oxygen, air, nitrogen Gas takes away reaction heat, therefore the gas gross sprayed into must be more, and opposite oxygen concentration is necessarily relatively low, this allows for flue gas Amount is very big, and sulfur dioxide in flue gas content is very low.Therefore, follow-up smoke processing system and acid making system scale are big, investment is big, Operating cost is high.Meanwhile penetrating is large-minded, also results in that the agitation of entire melt is more violent, and the kinetic energy that melt washes away furnace lining is big, The stove longevity is short.In addition, the patent is nor of how make the discard slag with copper in smelting furnace reach 65~78%.

Unlike the thermal balance mode in above-mentioned patent, is used in the present invention and cold burden is added in copper stove to making, and/ Or water mist is sprayed into copper stove to making, and/or the thermal balance mode of cooling element is set outside the furnace body for making copper stove.Each mode Advantage is as follows：

For the mode of cold burden is added：It is exothermic reaction due to making the reaction occurred in copper stove, cold burden is added and is conducive to reality Existing thermal balance, while the heat melts cold burden released using reaction, make full use of heat.The cold burden of addition can be copper scap, It is one or more in adopting electrolysis residual pole copper and solid-state copper matte regulus.In the factory of copper metallurgy at present, all using the fusing of individual metallurgical furnace, refining The secondary coppers materials such as copper scap, adopting electrolysis residual pole copper, this not only needs additional fuel to heat cold burden, it is often more important that needs to purchase It sets individual equipment, build individual workshop, the individual worker of configuration, considerably increase factory's operating cost.And use this hair Bright the above embodiment has not only handled copper scap, adopting electrolysis residual pole copper in the case where additionally not increasing equipment, workshop, personnel Equal materials, also save the energy, the resource of melting materialss needs, and economic benefit is very notable.In short, utilizing the affluence for making copper stove Heat melts composition brass reduces the processing cost of composition brass.

For the mode of furnace body cooling element is arranged：It is preferred that using water jacket, this realizes that furnace body heat is flat also for heat dissipation Weighing apparatus.

For spraying into the mode of water mist：It, can be smaller in final tolerance since water absorbs big calorimetric in gasification In the case of take away more heats, making to make copper reaction can carry out under the conditions of high oxygen-enriched air converting, and the blowing of high oxygen-rich concentration is just It solves in the patents such as CN103382528 using the above problem caused by the blowing of low oxygen-rich concentration.In addition, spray into water mist also just like Lower advantage：1) furnace temperature is more effectively controlled.Since the gasification of water can absorb big calorimetric, spraying into the small change of water can draw The large change of heat is played, therefore can more accurately and effectively control furnace temperature；2) extend service life of lance.Due to high oxygen-enriched air converting It is efficient, spray gun spray into tolerance than low oxygen-rich concentration blow it is few, the working strength of spray gun is low, and the cooling effect of water The service life of spray gun itself can also be extended；3) by taking 40% oxygen-rich concentration as an example, smelting intensity can be than low oxygen-rich concentration (21%~25%) nearly 1 times high.Inventory identical in exhaust gas volumn, that high oxygen-rich concentration (such as 40%) can be handled Want nearly 1 times high；4) low energy consumption, and power consumption is low.The unit scale that the power ratio of Water spraying device blasts air is much smaller.

Just because of the above-mentioned thermal balance mode of the present invention so that making copper stove and can blow in high oxygen-rich concentration in the present invention Under conditions of carry out.

In a preferred embodiment, it in the step of making copper reaction, after the step of carrying out oxidation processes, obtains Metallic copper and make copper ashes, when make in the metallic copper in copper stove it is oxygen-containing less than 0.2wt% when, copper ashes discharge will be made and make copper stove, metal Copper is as anode copper；When make in the metallic copper in copper stove it is oxygen-containing higher than 0.2wt% when, will make copper ashes discharge make copper stove after, Xiang Zao It is passed through reducing agent in copper stove to carry out reduction reaction to the Cu oxide impurity in metallic copper, and then obtains anode copper.

The purpose for making copper reaction be by copper matte regulus element sulphur and other impurities removal, obtain qualified anode copper.And it removes Miscellaneous process is mainly to be removed the oxidation of impurities slag making in copper using oxidation reaction.When making oxygen-containing in the metallic copper in copper stove be less than When 0.2wt%, on the one hand show impurity by more fully oxidized and enter and make in copper ashes, on the other hand show copper-based not by Peroxidating.The technique not restored only is aoxidized at this point, being used in making copper reaction process in the present invention, you can directly obtains anode Copper.When make in the metallic copper in copper stove it is oxygen-containing higher than 0.2wt% when, show removal of impurities while, there is part copper to be aoxidized.At this time Reducing agent can further be added, these Cu oxide impurity are subjected to reduction reaction.And the present invention will make copper ashes discharge make Reduction reaction is carried out after copper stove, additionally it is possible to returned in molten time metallic copper by the impurity of oxidative slagging before preventing, so as into One step ensures the grade of anode copper.

In a preferred embodiment, in the step of carrying out oxidation processes to copper matte regulus, by flux from the top for making copper stove Portion is added；Meanwhile by the way of bottom blowing to make in copper stove spray into oxygen-enriched air carry out oxidation processes, or optionally spray into reduction Agent carries out reduction reaction.Preferably, flux is selected from quartz and/or lime stone.Preferably, reducing agent is selected from natural gas, liquefaction One or more in oil gas and solid carbon based reductive, solid carbon based reductive is preferably fine coal and/or lump coal.The above work Skill and reagent can further increase the effect for making copper reaction.

In a preferred embodiment, the copper content of copper matte regulus be more than or equal to 70wt%, in this way can be to avoid because of copper Cu-S ore amount problem bigger than normal is made caused by the copper content of sulfonium is too low, the problem for preventing the copper direct yield brought by it low.It is more excellent It is 70~78wt% to select the copper content of copper matte regulus, this can further avoid the smelting slag caused by the copper content of the first copper matte regulus is excessively high Copper is containing excessively high problem, the problem that prevents the copper direct yield therefore brought low.In addition, copper matte regulus cupric is at 70~78%, lead zinc The elements such as antimony enter smelting slag in the form of an oxide, are conducive to subsequently recycle these elements from CR stoves.If copper matte regulus cupric is low, such as 40 When~50%, a part for these elements can stay in copper matte regulus, be unfavorable for subsequently recycling from CR stoves.

In addition to the problems such as production procedure of the above anode copper is long, efficiency is low, the processing of smelting slag is needed in the prior art Large area slag slow cooling field and complicated slag ore dressing link, increase construction cost and technical sophistication degree, and there are valuable metal streams The problem of losing waste, pollution environment.As above in order to solve the problems, such as, present applicant proposes a kind of short route copper smelting methods, use Copper smelting device include smelting furnace, make copper stove, CR stoves, the first chute and the second chute；Smelting furnace is provided with copper matte regulus outlet and melts Refine slag outlet；It makes copper stove and is provided with copper matte regulus entrance, copper matte regulus entrance passes through the first chute and copper matte regulus outlet；CR stoves are provided with molten Slag entrance is refined, smelting slag entrance passes through the second chute and smelting slag outlet；Short route copper smelting method includes the following steps：It will Copper concentrate carries out melting in smelting furnace, obtains the first copper matte regulus and smelting slag；The first copper matte regulus is carried out making copper in making copper stove anti- It answers, generate anode copper and makes copper ashes；And reduction fuming and sedimentation are carried out with synthetical recovery smelting slag to smelting slag in CR stoves In valuable metal, and make harmless slag；Valuable metal includes one or more in lead, zinc and antimony；Short route copper smelting method is same When complete valuable metal synthetical recovery and the harmless slag of the direct output of CR stoves in output anode copper, smelting slag.Above method phase Than the prior art, main-process stream greatly shortens, and is conducive to reduce construction cost, reduces technical sophistication degree, and realize resource comprehensive It recycles and eliminates environmentally friendly hidden danger.

" harmless slag " described herein refers to：It will not cause the slag of heavy metal pollution.

CR stove full name are to recycle (completely recycle) stove comprehensively.

In the above method, after obtaining smelting slag, melting can be recycled by carrying out reduction fuming and sedimentation to smelting slag Valuable metal in slag, such as metallic zinc, lead, antimony etc..This just efficiently solves valuable metal in existing copper metallurgy technique and is lost in The problem of waste, and avoid these and be lost in pollution problem of the metal to environment；On the other hand, reduction fuming is carried out to smelting slag With sedimentation instead of original slag beneficiation flowsheet, factory floor space is not only greatly reduced, keeps technological process simpler, also It is polluted caused by being inherently eliminated the beneficiation reagent being added in slag beneficiation flowsheet.At the same time, it should be noted that this hair Bright above-mentioned copper smelting method uses the copper smelting device that a load chooses formula, and copper directly by chute and is made in the copper matte regulus end of smelting furnace Stove is connected to, and the slag output end of smelting furnace is directly connected to by chute with CR stoves, short route copper metallurgy is realized, has been completed at the same time output Valuable metal synthetical recovery and the harmless slag of the direct output of CR stoves in anode copper, smelting slag have industrialization well extensive Application prospect.

In a preferred embodiment, include the step of progress melting in smelting furnace by copper concentrate：By copper concentrate It is mixed with the first flux, obtains mixture；Mixture is put into smelting furnace, melting is carried out under the action of the first oxidant, Obtain the first copper matte regulus and smelting slag.Preferably, bottom-blown smelting method or side-blown smelting process are used in fusion process.Utilize bottom-blown smelting Method or side-blown smelting process, can further increase matte grade.It is highly preferred that the first flux is selected from quartz and/or lime stone； First oxidant is one or more in oxygen, compressed air and oxygen-enriched air.

" oxygen-enriched air " described herein refer to oxygen concentration be more than air in oxygen concentration gas, such as can by Oxygen is mixed in air to obtain.

In a preferred embodiment, copper concentrate was carried out in smelting furnace in the step of melting, the first oxidant Straying quatity be copper concentrate per ton correspond to 120Nm³The above O₂So that the copper content of the first copper matte regulus is more than or equal to 70wt%.By The straying quatity control of one oxidant is that copper concentrate per ton corresponds to 120Nm³The above O₂, can make the first copper matte regulus copper content be more than Equal to 70wt%, can be prevented in this way to avoid Cu-S ore amount problem bigger than normal is made caused by the copper content of the first copper matte regulus is too low The low problem of the copper direct yield that brings by it.The straying quatity of more preferable first oxidant be copper concentrate per ton correspond to 120~ 200Nm³O₂So that the copper content of the first copper matte regulus is 70~78wt%, this can further avoid the copper content mistake because of the first copper matte regulus Smelting slag copper caused by height is containing excessively high problem, the problem that prevents the copper direct yield therefore brought low.In addition, copper matte regulus cupric is 70 When~78%, the elements such as lead zinc antimony enter smelting slag in the form of an oxide, are conducive to subsequently recycle these elements from CR stoves.If copper Sulfonium cupric is low, and when such as 40~50%, a part for these elements can stay in copper matte regulus, is unfavorable for subsequently recycling from CR stoves.

In a preferred embodiment, copper concentrate was carried out in smelting furnace in the step of melting, it will be after cooling It makes in copper ashes input smelting furnace and carries out melting processing together with copper concentrate.Copper ashes is made by the way that addition is after cooling, can be alleviated molten Problems of excessive heat during refining can make fusion process be easier to carry out under higher oxygen-rich concentration, and therefore reduce and generate Exhaust gas volumn.

In addition to this, the smelting temperature preferably in fusion process is 1150~1300 DEG C, and the addition of the first flux is institute State the 1~20% of copper mine total weight.

It is above-mentioned to make copper reaction to direct output anode copper.In a preferred embodiment, in making copper stove One copper matte regulus carries out making the step of copper reacts：While cold burden being added in copper stove to making, and/or spray into water to making in copper stove Mist, and/or cooling element is set outside the furnace body for making copper stove；Wherein cold burden includes copper scap, adopting electrolysis residual pole copper and In Crystal Solid Copper It is one or more in sulfonium.

Just because of the above-mentioned thermal balance mode of the present invention so that making copper stove and can blow in high oxygen-rich concentration in the present invention Under conditions of carry out.In a preferred embodiment, in the step of carrying out making copper reaction, oxygen-enriched sky is sprayed into making copper stove The first copper matte regulus of gas pair carry out oxidation processes, with make copper reaction, and in oxygen-enriched air oxygen percent by volume be 30~ 80%.Although CN103382528 mentions converting furnace oxygen concentration 9~60%, since it is to take away heat, actual oxygen by gas Concentration can be only sustained at 25% hereinafter, high oxygen-rich concentration can not be realized really.And above-mentioned thermal balance means are relied in the present invention, it is complete 30~80% oxygen-enriched air concentration all can enough be reached.

In a preferred embodiment, it in the step of making copper reaction, after the step of carrying out oxidation processes, obtains Metallic copper and make copper ashes；When make in the metallic copper in copper stove it is oxygen-containing less than 0.2wt% when, will make copper ashes discharge make copper stove, obtain Anode copper；When make in the metallic copper in copper stove it is oxygen-containing higher than 0.2wt% when, will make after copper ashes discharge makes copper stove, to making in copper stove Reducing agent is passed through to carry out reduction reaction to the Cu oxide impurity in metallic copper, and then obtains anode copper.

The purpose for making copper reaction be by the first copper matte regulus element sulphur and other impurities removal, obtain qualified anode copper. And dedoping step is mainly to be removed the oxidation of impurities slag making in copper using oxidation reaction.It is oxygen-containing in the metallic copper in copper stove when making When less than 0.2wt%, on the one hand show that impurity by more fully oxidized and enter and make in copper ashes, on the other hand shows that copper-based does not have Have by peroxidating.The technique not restored only is aoxidized at this point, being used in making copper reaction process in the present invention, you can directly obtains sun Pole copper.When make in the metallic copper in copper stove it is oxygen-containing higher than 0.2wt% when, show removal of impurities while, there is part copper to be aoxidized.This When reducing agent can further be added, by these Cu oxide impurity carry out reduction reaction.And the present invention will make copper ashes discharge It makes copper stove and carries out reduction reaction later, additionally it is possible to it is returned in molten time metallic copper by the impurity of oxidative slagging before preventing, so as to It is further ensured that the grade of anode copper.

In a preferred embodiment, in the step of carrying out oxidation processes to the first copper matte regulus in making copper stove, by the Two flux are added from the top for making copper stove；Meanwhile by the way of bottom blowing to make in copper stove spray into oxygen-enriched air carry out at oxidation Reason, or optionally spray into the first reducing agent and carry out reduction reaction.Preferably, the second flux is selected from quartz and/or lime stone.It is excellent Selection of land, the first reducing agent is one or more in natural gas, liquefied petroleum gas and solid carbon based reductive, preferably solid carbon Base reductant is fine coal and/or solid carbonaceous reductant.Process above and reagent can further increase the effect for making copper reaction Fruit.

The effect of above-mentioned CR stoves is the valuable metal recycled by reduction fuming and sedimentation in smelting slag, and makes harmless slag. In a preferred embodiment, CR stoves include cavity, and cavity includes the reduction fuming chamber and sedimentation chamber being connected；Recycling is molten Refining slag in valuable metal the step of include：Smelting slag is subjected to reduction fuming process in restoring fuming chamber, obtains valuable gold Belong to flue gas and reducing slag, and reducing slag is subjected to settlement treatment in sedimentation chamber, obtains the second copper matte regulus and harmless slag；Or it will Smelting slag carries out settlement treatment in sedimentation chamber, obtains the second copper matte regulus and sedimentation slag, and will settle slag in restoring fuming chamber Reduction fuming process is carried out, valuable metal flue gas and harmless slag are obtained.

Above-mentioned CR stoves are integrated recovery furnace, simultaneously including reduction fuming chamber and sedimentation chamber.In the first processing mode In, reduction fuming process, settlement treatment successively have been carried out to smelting slag.When smelting slag is carried out reduction fuming process, it can incite somebody to action Armco magnetic iron (ferroso-ferric oxide) in smelting slag is reduced to ferrous oxide and carries out slag making, can reduce the viscosity of smelting slag in this way, To improve subsequent sedimentation separation effect, detached from reducing slag convenient for the second copper matte regulus.Meanwhile the valuable metals such as zinc, lead, antimony After oxide is reduced to metal, it is converted into valuable metal flue gas because it is with effumability and is separated, to reach The purpose of recycling valuable metal.After restoring fuming process, obtain reducing slag (be in flowable state) and enter in sedimentation chamber to be settled Separation, obtains the second copper matte regulus and harmless slag.More importantly, the reducing slag after restoring fuming process is directly entered sedimentation separation, On the one hand treatment effeciency can be significantly improved；On the other hand since reducing slag is directly entered settlement treatment, it can keep more steady Surely fluidised form, and only have small temperature change in the process even without temperature change, both sides reason makes it have Better effect of settling can further increase the rate of recovery of the second copper matte regulus.

For second of processing mode, be by settlement treatment setting the reduction fuming process the step of before.In this way, can It after first separating the copper matte regulus in smelting slag, restores again and fuming process, further recycles zinc therein, lead, antimony Equal valuable metals.

It should be noted that compared to the mode for restoring fuming process afterwards is first settled, the present invention is more preferably used and is first restored The mode of settlement treatment after fuming.For first restoring the mode of settlement treatment after fuming, the advantage is that：The temperature of sedimentation separation Higher, separating effect is better.And the temperature for restoring fuming needs is very high (1200~1400 DEG C), therefore, after first restoring fuming Material self-temperature is very high, and separation can be realized in subsidence stage by being not required to additionally heat.Certainly, it is settled after this first reduction fuming The mode of processing can also carry out concurrent heating to settlement treatment.However, restoring the mode of fuming after first sedimentation separation, then must Concurrent heating is carried out during settlement treatment.Specific concurrent heating mode can be as follows：Can settling section electrode (such as can be with 3~6 electrodes are set) heating or heat preservation, and/or set submersible burning nozzle (submersible burning nozzle sprays fuel and oxygen, The amount control of oxygen makes non-complete combustion of fuel state).In addition, first restoring the mode of settlement treatment after fuming also with as follows Advantage：Reducing slag stops the sedimentation layering that can more fully realize slag sulfonium after a certain period of time in sedimentation chamber, and harmless slag is put from top Go out, the second copper matte regulus is released from lower part.

In specific operation, can repeatedly reduction fuming and precipitation step successively be carried out to smelting slag, can also will melted Refining slag is divided into multi-section point and carries out reduction fuming and precipitation step respectively.This is those skilled in the art's introduction energy according to the present invention Enough expect, details are not described herein.

In a preferred embodiment, it is additionally provided with partition wall in cavity, cavity is divided into reduction fuming chamber and sunk Chamber drops, and fuming reduction fuming chamber and sedimentation chamber are located at the both sides of partition wall in the horizontal direction, and restore fuming chamber and sedimentation chamber Communicating passage close to cavity bottom be arranged.In this way, the melt with mobility reacted in restoring fuming chamber And between carrying out the melt of settlement treatment in sedimentation chamber, it can realize and more stably flow, and partition wall can block reduction fuming The buoyant of agitation and surface in chamber, to further increase the effect of settlement treatment.

In a preferred embodiment, the step of reduction fuming process includes：It is added second into reduction fuming chamber Reducing agent is to carry out reduction fuming process；It is preferred that the second reducing agent is selected from natural gas, coal gas, liquefied petroleum gas, iron powder and solid One or more in carbon based reductive, it is lump coal and/or fine coal that more preferable solid carbon based reductive, which is selected from,.Select the reagent into Row reduction fuming process, it is more thorough for the recycling of valuable metal.In actual mechanical process, while into reduction fuming chamber Oxidant is sprayed into, to provide heat by burning, simultaneous oxidation agent, which is also possible to react with reducing agent, generates the reduction such as carbon monoxide Gas plays reduction together with the reducing agent of addition.

In a preferred embodiment, the step of restoring and be provided with side-blown spray gun in fuming chamber, restoring fuming process In, the second reducing agent is blasted in reduction fuming chamber using side-blown spray gun.It is highly preferred that being additionally provided with smoke in reduction fuming chamber Mouthful, restore fuming process the step of further include：Secondary Air is introduced at the top of reduction fuming chamber or outlet flue.It in this way can be with Valuable metal flue gas is oxidized to valuable metal oxide, carries out off-gas recovery afterwards.

In a preferred embodiment, in the step of restoring fuming process, reaction temperature is 1200~1400 DEG C.More When preferably, before restoring fuming process step and being located at settlement treatment step, while restoring fuming process, to reduction cigarette Change in chamber and trapping agent is added；It is preferred that trapping agent is selected from the first vulcanizing agent and/or copper concentrate, more preferable first vulcanizing agent is selected from sulphur iron Mine and/or pyrite.When reduction fuming process step is located at after settlement treatment step, while settlement treatment, Xiang Chen The second vulcanizing agent and/or copper concentrate are added in drop chamber, preferably the second vulcanizing agent is in troilite, pyrite and refining lead bronze dross It is one or more.

Vulcanizing agent and/or copper concentrate is added, advantageously reduces the matte grade in smelting slag, it is made to be changed into low-grade copper Sulfonium (the second copper matte regulus), can reduce the copper content in harmless slag, further increase the rate of recovery of copper in this way.And at reduction fuming It manages in the mode after step is located at settlement treatment step, because sedimentation slag can also carry out subsequent reduction fuming step and be returned Receive, thus may be used refining lead bronze dross as waste residue can also be in restoring fuming step as vulcanizing agent, lead therein It volatilizees and recycles together with the lead in sedimentation slag, the difficult miscellaneous material generated in some production processes can be made full use of in this way, It realizes comprehensive utilization of resources, and does not increase additional equipment investment and process procedure.

It is highly preferred that the step of settlement treatment, further includes：Inert gas and/or sulfur dioxide gas are blasted into sedimentation chamber Body.Faint agitation can be formed in this way, this is conducive to the separation of copper and slag.Sulfur dioxide gas more preferably is blasted, in addition to Outside agitaion, the effect of partial vulcanization agent is also acted as, is more advantageous to and makes low-grade copper matte regulus in subsidence stage.

In a preferred embodiment, after the step of obtaining the second copper matte regulus, copper smelting method further includes by second Copper matte regulus Returning smelting stove carries out the step of melting.The utilization rate of copper can be improved in this way.

In a preferred embodiment, after the step of obtaining the second copper matte regulus, copper smelting method further includes by second The step of copper stove carries out making copper is made in copper matte regulus return.The utilization rate of copper can be improved in this way.Since the second copper matte regulus is usually with cooling State (and second copper matte regulus of solid-state) is added, therefore can also play the role of thermally equilibrated.

In a preferred embodiment, in the step of carrying out making copper reaction to the first copper matte regulus, obtained copper is molten for copper Body；After the step of making copper reaction, above-mentioned copper smelting method further includes the steps that carrying out cast molding to copper melts.It in this way can be with Further copper melts are cast to form the products such as copper anode plate.

According to another aspect of the present invention, a kind of copper metallurgy system is additionally provided, as illustrated in fig. 1 and 2, which includes Smelting furnace 10 makes copper stove 20, CR stoves 30, the first chute and the second chute；Wherein smelting furnace 10 is used to carry out melting to copper concentrate With the first copper matte regulus of output and smelting slag；Smelting furnace 10 is provided with the outlet of the first copper matte regulus and smelting slag outlet；Copper stove 20 is made to be provided with Copper matte regulus entrance, copper matte regulus entrance are exported with the first copper matte regulus and are connected to by the first chute, make copper stove 20 for being made to the first copper matte regulus Copper reacts, and generates anode copper and makes copper ashes；CR stoves 30 are provided with smelting slag entrance, are connected by the second chute with smelting slag outlet It is logical, for carrying out reduction fuming and sedimentation to smelting slag to recycle the valuable metal in smelting slag.

In above-mentioned apparatus, melting can be carried out to copper mine using smelting furnace 10, obtain the first copper matte regulus and smelting slag.It is obtaining After smelting slag, reduction fuming and sedimentation can be carried out to smelting slag using CR stoves 30, and then can recycle valuable in smelting slag Metal, such as metallic zinc, lead, antimony etc..This just solves the problems, such as that valuable metal is lost in waste in existing copper metallurgy technique, And it avoids these and is lost in pollution problem of the metal to environment；On the other hand, reduction fuming is carried out to smelting slag and sedimentation replaces Original slag beneficiation flowsheet, is not only greatly reduced factory floor space, keeps technological process simpler, also fundamentally disappear In addition to being polluted caused by the beneficiation reagent that is added in slag beneficiation flowsheet.At the same time, it should be noted that above-mentioned refining of the invention Copper device, CR stoves 30 are connected to the slag output end of smelting furnace 10, are made copper stove 20 and are connected to the copper matte regulus end of smelting furnace 10.In this way by copper Mine carries out after melting obtains the first copper matte regulus and smelting slag, on the one hand by the first copper matte regulus make copper reaction treatment generate grade compared with On the one hand the smelting slag of output in fusion process is recycled by high anode copper again, that is, the load used chooses formula Copper smelting device, the step of highly shortened Copper making, have industrialization large-scale application foreground well.

In a preferred embodiment, CR stoves 30 be arranged in parallel or series it is multiple.In this way, multiple CR stoves 30 are adopted With working continuously or the second copper matte regulus of alternately operating mode output, valuable metal and the broken harmless slag of water, treatment effeciency can be improved.When So, multiple 30 tandems of CR stoves can also be utilized to handle smelting slag, to further increase treatment effect.Details are not described herein.

In a preferred embodiment, CR stoves 30 include cavity, and cavity includes 31 He of reduction fuming chamber being connected Sedimentation chamber 32, reduction fuming chamber 31 and smelting slag outlet restore fuming chamber for carrying out reduction fuming process to smelting slag Exhanst gas outlet is provided on 31, sedimentation chamber 32 is connected to reduction fuming chamber 31, for the reducing slag after reduction and fuming process Settlement treatment is carried out, and sedimentation chamber 32 is provided with the outlet of the second copper matte regulus and slag-drip opening (as shown in Figure 1)；Alternatively, CR stoves 30 include Cavity, cavity include the reduction fuming chamber 31 being connected and sedimentation chamber 32, sedimentation chamber 32 and smelting slag outlet, for molten It refines slag and carries out settlement treatment, and sedimentation chamber 32 is provided with the outlet of the second copper matte regulus, reduction fuming chamber 31 is connected to sedimentation chamber 32, is used for Reduction and fuming process are carried out to the sedimentation slag after settlement treatment, exhanst gas outlet and slag-drip opening are provided on reduction fuming chamber 31.

In this way, CR stoves 30 provided by the invention are integrated equipment, include 31 He of reduction fuming chamber being connected simultaneously Sedimentation chamber 32, the connection relation of selective reduction fuming chamber 31 and sedimentation chamber 32, in that case it can be decided that fuming is first restored, it is rear to settle；Or It first settles, restores fuming afterwards.

It, can be to molten when sedimentation chamber 32 is connected to reduction fuming chamber 31 when reduction fuming chamber 31 and smelting slag outlet Refining slag first carries out reduction fuming process, carries out settlement treatment afterwards.It, can be by melting when smelting slag is carried out reduction and fuming process Armco magnetic iron (ferroso-ferric oxide) in slag is reduced to ferrous oxide and carries out slag making, can reduce the viscosity of smelting slag in this way, to Subsequent sedimentation separation effect is improved, is detached from reducing slag convenient for the second copper matte regulus.Meanwhile the valuable metals such as zinc, lead, antimony aoxidize It after object is reduced to metal, is converted into valuable metal flue gas because it is with effumability and is separated, to reach time Receive the purpose of valuable metal.After restoring fuming process, obtained reducing slag (being in flowable state), which enters in sedimentation chamber, carries out sedimentation point From further obtaining the second copper matte regulus and harmless slag.More importantly, using integration apparatus, the melting after restoring fuming process Slag is directly entered sedimentation separation, on the one hand can significantly improve treatment effeciency；Another aspect is heavy since reducing slag is directly entered Drop processing, can keep more stably fluidised form, and only have small temperature change in the process even without temperature change, and two The reason of aspect, makes it have better effect of settling, can further increase the rate of recovery of the second copper matte regulus.

It, can be to molten when sedimentation chamber 32 is connected to reduction fuming chamber 31 when reduction fuming chamber 31 and smelting slag outlet Refining slag first carry out settlement treatment, after carry out reduction fuming process.In this way, after can first separating the copper matte regulus in smelting slag, The fuming process stage is restored again, the valuable metals such as zinc therein, lead, antimony are further recycled.It should be noted that compared to The mode for restoring fuming process afterwards is first settled, the present invention is more preferably after first restoring fuming by the way of settlement treatment.For elder generation The mode of settlement treatment, the advantage is that after reduction fuming：The temperature of sedimentation separation is higher, and separating effect is better.And restore cigarette It is very high (1200~1400 DEG C) to change the temperature needed, therefore, the material self-temperature first restored after fuming is very high, is not required to additionally add Heat can be realized in subsidence stage and be detached.Certainly, it is this first restore fuming after settlement treatment mode, can also be to settlement treatment Carry out concurrent heating.However, restoring the mode of fuming after first sedimentation separation, then concurrent heating must be carried out during settlement treatment. Specific concurrent heating mode can be as follows：It can heat or keep the temperature in settling section electrode (for example 3~6 electrodes can be arranged), And/or it sets submersible burning nozzle (submersible burning nozzle sprays fuel and oxygen, and the amount control of oxygen keeps fuel incomplete Combustion state).In addition, the mode for first restoring settlement treatment after fuming also has the following advantages that：Reducing slag stops one in sedimentation chamber After fixing time, it can more fully realize that the sedimentation layering of slag sulfonium, harmless slag are discharged from an upper location, the second copper matte regulus is released from lower part.

In a preferred embodiment, as shown in Figure 1, being additionally provided with partition wall 33 in cavity, cavity is divided into also Former fuming chamber 31 and sedimentation chamber 32, reduction fuming chamber 31 and sedimentation chamber 32 are located at the both sides of partition wall 33 in the horizontal direction, and The communicating passage for restoring fuming chamber 31 and sedimentation chamber 32 is arranged close to cavity bottom.In this way, in restoring fuming chamber 31 into Between the melt for carrying out settlement treatment in the melt and sedimentation chamber with mobility of row reaction, it can realize and more stably flow It is dynamic, and partition wall can block the buoyant of the agitation and surface in reduction fuming chamber, to further increase the effect of settlement treatment. Preferably, above-mentioned partition wall 33 is water cooling partition wall.

In a preferred embodiment, reduction fuming chamber 31 is additionally provided with side-blown spray gun, and the setting of the first spray gun is also The side or bottom of former fuming chamber 31, for spraying into reducing agent into reduction fuming chamber 31.It is highly preferred that in reduction fuming chamber also It is provided with outlet flue, valuable metal flue gas is discharged.It is further preferred that being additionally provided with charge door in reduction fuming chamber, use In to reduction fuming chamber 31 in trapping agent is added.

In a preferred embodiment, when reduction fuming chamber 31 and smelting slag outlet, sedimentation chamber 32 and reduction When fuming chamber 31 is connected to, sedimentation chamber 32 is additionally provided with heating plant, for sedimentation chamber 32 to be kept the temperature or heated up.In this way can It prevents sedimentation chamber 32 from cooling down, is further ensured that sedimentation separation effect.Preferably, heating plant is submersible burning nozzle or electricity Pole.

In a preferred embodiment, it makes copper stove 20 and is additionally provided with the second spray gun and flux entrance, the second spray gun is set It sets in the side or bottom for making copper stove 20, for being alternately added oxidant or reducing agent in copper stove 20 to making；Flux entrance is used for It is passed through flux.In such manner, it is possible to complete the refining to copper matte regulus in making one equipment of copper stove, its grade is increased to electrolytic anode copper Grade.Preferably, the furnace body for making copper stove 20 is horizontal cylinder type furnace body.In practical operation, more can be arranged in parallel and made Copper stove 20 carries out the mode of alternately operating or operation simultaneously.Preferably, appropriate water mist can be sprayed into the second spray gun to make to absorb The superfluous heat generated during copper reduces exhaust gas volumn, extends service life of lance.

In a preferred embodiment, it makes copper stove 20 and is additionally provided with copper melts outlet；Copper metallurgy system further includes casting Equipment 40, casting equipment 40 and copper melts outlet, for carrying out casting processing to copper melts.First copper matte regulus is carried out to make copper In the step of reaction, obtained anode copper is copper melts.Can copper melts further be poured into cast by the way that casting equipment 40 is arranged At products such as anode copper coins.It is highly preferred that casting equipment 40 is double-arc spline casting machine.

In a preferred embodiment, make copper stove 20 be additionally provided with make copper ashes outlet, make copper ashes to be discharged；Melting Stove 10, which is additionally provided with, makes copper ashes entrance, copper ashes after cooling of making to be passed through in smelting furnace 10.

In a preferred embodiment, smelting furnace 10 is additionally provided with the second copper matte regulus entrance, to by after cooling Two bronze medal sulphur are passed through into smelting furnace 10.The utilization rate of copper can be further increased in this way.

In a preferred embodiment, it makes copper stove 20 and is additionally provided with cold burden entrance, to be added to making in copper stove 20 It is one or more in cathode copper anode scrap, copper scap and solid-state copper matte regulus.It in this way can be by electrolysis remaining in later stage electrolytic process Copper anode scrap and the copper scap of outsourcing, solid-state copper matte regulus are passed through as cold burden and make in copper stove, and the thermal balance made in copper stove is better achieved, To spray into oxygen-enriched create conditions in copper stove to making.

In a preferred embodiment, it further includes cooling equipment to make copper system system, and cooling equipment is used for making copper stove 20 Cool down.Copper stove 20 can be ensured to make in this way and maintain thermal balance making the copper stage of reaction, to spray into oxygen-enriched wound in copper stove to making Condition is made, the stove longevity can also be extended in addition.Cooling equipment includes but not limited to negative pressure water jacketing or spray cooling device

In a preferred embodiment, smelting furnace 10 is top blow smelting stove, flash smelting furnace, bottom-blown smelting stove or side Blow and fuse furnace.

The advantageous effect further illustrated the present invention by the following examples：

Embodiment 1

Copper metallurgy is carried out using copper smelting device shown in Fig. 2, each device technique condition is as follows：

Smelting furnace：Smelting temperature is 1300 DEG C；Flux is quartz, and addition is the 10% of copper mine total weight；Oxidation Agent is oxygen, and addition is that 150Nm is added in copper mine per ton³O₂；

Make copper stove：Flux is quartz, and addition is the 20% of the first copper matte regulus total weight；Oxidant is that oxygen volume contains The oxygen-enriched air of amount 40%, addition are that 200Nm is added in the first copper matte regulus per ton³O₂；Oxygen is sprayed into making in copper stove using spray gun While agent, water mist is also sprayed into；While cold burden copper scap being added in copper stove to making；Reducing agent is fine coal, spray into reducing agent it Before, copper ashes discharge will be first made, Returning smelting stove after copper ashes cooling is made.

CR stoves：Fuming is first restored, it is rear to settle；In the step of restoring fuming process, reaction temperature is 1200 DEG C；Reducing agent is Fine coal, addition are the 10% of smelting slag total weight；A small amount of oxygen that is passed through provides combustion-supporting concurrent heating；Titanium dioxide is passed through in sedimentation chamber Sulphur gas, and vulcanizing agent pyrite is added and makes low-grade copper matte regulus；The low-grade copper matte regulus Returning smelting stove of gained.

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 75%, 650,000 tons of smelting slag, cupric 3%, smelting slag contain zinc 2.77%；Make 23.5 ten thousand tons of copper stove output anode copper, cupric 99.3%, sulfur-bearing 0.05%；Smelting slag Copper in Slag 0.3%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.28%. Whole system copper recovery about 99%, zinc recovery is about 80%.

Embodiment 2

Processing method is identical with embodiment 1, the difference is that copper mine raw material is different, it is specific as follows：

1,500,000 tons of copper concentrates of year processing, concentrate cupric 25% contain zinc 1.5%, contain antimony 0.5%；Melting output copper matte regulus 400,000 Ton, cupric 75%, 1,000,000 tons of smelting slag, cupric 2%, smelting slag contain zinc 2.03%；450,000 tons of copper stove output anode copper is made, is contained Copper 99.2%, sulfur-bearing 0.03%；Smelting slag Copper in Slag 0.3%, slag after the processing of CR stoves contain zinc 0.20%.Whole system copper recycles Rate about 99%, zinc recovery is about 80%.

Embodiment 3

Processing method with embodiment 1, the difference is that：

Smelting furnace：Smelting temperature is 1300 DEG C；Flux is quartz, and addition is the 20% of copper mine total weight；Oxidation Agent is oxygen, and addition is that 200Nm is added in copper mine per ton³O₂；

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；260,000 tons of melting output copper matte regulus, Cupric 78%, 620,000 tons of smelting slag, cupric 4%, smelting slag contain zinc 2.05%；Make 23.6 ten thousand tons of copper stove output anode copper, cupric 99.5%, sulfur-bearing 0.03%；Smelting slag Copper in Slag 0.2%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.26%. Whole system copper recovery about 99%, zinc recovery is about 82%.

Embodiment 4

Processing method with embodiment 1, the difference is that：

Smelting furnace：Smelting temperature is 1150 DEG C；Flux is quartz, and addition is the 1% of copper mine total weight；Oxidant For oxygen, addition is that 120Nm is added in copper mine per ton³O₂；

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；260,000 tons of melting output copper matte regulus, Cupric 70%, 700,000 tons of smelting slag, cupric 2.5%, smelting slag contain zinc 3.25%；23.1 ten thousand tons of copper stove output anode copper is made, is contained Copper 99.1%, sulfur-bearing 0.03%；Smelting slag Copper in Slag 0.3%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.27%.Whole system copper recovery about 99%, zinc recovery is about 80%.

Embodiment 5

Processing method with embodiment 1, the difference is that：

Smelting furnace：Smelting temperature is 1100 DEG C；Flux is quartz, and addition is the 0.8% of copper mine total weight；Oxidation Agent is oxygen, and addition is that 90Nm is added in copper mine per ton³O₂；

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；200,000 tons of melting output copper matte regulus, Cupric 65%, 780,000 tons of smelting slag, cupric 5%, smelting slag contain zinc 4.71%；Make 22.8 ten thousand tons of copper stove output anode copper, cupric 98.0%, sulfur-bearing 0.1%；Smelting slag Copper in Slag 0.6%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.49%. Whole system copper recovery about 95%, zinc recovery is about 78%.

Embodiment 6

Processing method with embodiment 1, the difference is that：

Make copper stove：Flux is quartz, and addition is the 20% of the first copper matte regulus total weight；Oxidant is that oxygen volume contains The oxygen-enriched air of amount 80%, addition are that 120Nm is added in the first copper matte regulus per ton³O₂；Oxygen is sprayed into making in copper stove using spray gun While agent, water mist is also sprayed into；While cold burden copper scap being added in copper stove to making；Reducing agent is fine coal；Spray into reducing agent it Before, it will first make copper ashes discharge, Returning smelting stove after cooling.

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 75%, 650,000 tons of smelting slag, cupric 3%, smelting slag contain zinc 2.77%；Make 24.6 ten thousand tons of copper stove output anode copper, cupric 99.5%, sulfur-bearing 0.03%；Smelting slag Copper in Slag 0.4%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.32%. Whole system copper recovery about 99.6%, zinc recovery is about 80%.

Embodiment 7

Processing method with embodiment 1, the difference is that：

Make copper stove：Flux is quartz, and addition is the 20% of the first copper matte regulus total weight；Oxidant is that oxygen volume contains The oxygen-enriched air of amount 30%, addition are that 140Nm is added in the first copper matte regulus per ton³O₂；Oxygen is sprayed into making in copper stove using spray gun While agent, water mist is also sprayed into, while cold burden copper scap being added in copper stove to making；Reducing agent is fine coal；Spray into reducing agent it Before, it will first make copper ashes discharge, Returning smelting stove after cooling.

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 75%, 650,000 tons of smelting slag, cupric 3%, smelting slag contain zinc 2.77%；Make 22.0 ten thousand tons of copper stove output anode copper, cupric 98.8%, sulfur-bearing 0.03%；Smelting slag Copper in Slag 0.5%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.34%. Whole system copper recovery about 98.7%, zinc recovery is about 75%.

Embodiment 8

Processing method with embodiment 1, the difference is that：

Make copper stove：Flux is quartz, and addition is the 20% of the first copper matte regulus total weight；Oxidant is that oxygen volume contains The oxygen-enriched air of amount 25%, addition are that 140Nm is added in the first copper matte regulus per ton³O₂；Reducing agent is fine coal；Water mist is not sprayed into, It is added without cold burden；

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 75%, 650,000 tons of smelting slag, cupric 3%, smelting slag contain zinc 2.77%；Make 18.2 ten thousand tons of copper stove output anode copper, cupric 97.6%, sulfur-bearing 0.12%；Smelting slag restores dilution (reduction fuming and sedimentation), and Copper in Slag 0.41%, slag contain zinc 0.50% afterwards. Whole system copper recovery about 95%, zinc recovery is about 70%.

Embodiment 9

Processing method with embodiment 1, the difference is that：

CR stoves：Fuming is first restored, it is rear to settle；In the step of restoring fuming process, reaction temperature is 1350 DEG C；Reducing agent is Fine coal, addition are the 10% of smelting slag total weight；A small amount of oxygen that is passed through provides heat；Vulcanizing agent pyrite is added and makes low product Position copper matte regulus；Sulfur dioxide gas, the low-grade copper matte regulus Returning smelting stove of gained are passed through in sedimentation chamber.

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 75%, 650,000 tons of smelting slag, cupric 3%, smelting slag contain zinc 2.77%；Make 23.5 ten thousand tons of copper stove output anode copper, cupric 99.3%, sulfur-bearing 0.05%；Smelting slag Copper in Slag 0.1%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.19%. Whole system copper recovery about 99%, zinc recovery is about 85%.

Embodiment 10

Processing method with embodiment 1, the difference is that：

CR stoves：It first settles, restores fuming afterwards；In the step of restoring fuming process, reaction temperature is 1350 DEG C；Reducing agent is Fine coal, addition are the 10% of smelting slag total weight；A small amount of oxygen that is passed through provides heat；Sedimentation chamber carries out electrode concurrent heating.

Handling result：1,000,000 tons of copper concentrates of year processing, concentrate cupric 20% contain zinc 2%；250,000 tons of melting output copper matte regulus, Cupric 72%, 630,000 tons of smelting slag, cupric 3.5%, smelting slag contain zinc 2.63%；Make 240,000 tons of copper stove output anode copper, cupric 99.3%, sulfur-bearing 0.05%；Smelting slag Copper in Slag 0.6%, slag after CR stoves processing (reduction fuming and sedimentation) contain zinc 0.54%. Whole system copper recovery about 98.5%, zinc recovery is about 68%.

It can be seen from the above description that the application the above embodiments realize following technique effect：

Using copper metallurgy technique provided by the invention, annual amount for the treatment of is big, and (electrolytic anode copper can be reached to anode copper by referring to purity Copper products) yield is big, and recovery rate of valuable metals is higher.Particularly, by the data in embodiment 1, embodiment 5 to 8 it is found that comparing Cold burden is added not in making copper stove in embodiment 8 or sprays into for the technical solution of water mist, is used in embodiment 1,5 to 7 It makes and cold burden is added in copper stove and sprays into the mode of water mist, greatly improve the oxygen content for making oxidant in copper reaction, make reaction Copper reaction can be completed to make under conditions of high oxygen-rich concentration without generating superheating phenomenon, also effectively increase copper sulphur output efficiency With the copper factor of anode copper.Certainly, although cold burden is added not in making copper stove and sprays into water mist, the skill in the embodiment of the present invention 8 Art scheme has equally effectively recycled the valuable metal in smelting slag using short route copper metallurgy technique, while directly output anode copper And harmless slag is made, also belong to protection scope of the present invention.

In short, the present invention has effectively recycled the valuable metal in fusion process in smelting slag by reduction fuming and sedimentation, Resource reclaim is realized, environmental pollution is alleviated.In addition, the present invention using smelting furnace as core, shortens simultaneously from product end and slag end, Enormously simplify copper metallurgy technique.Preresearch estimates averagely contains zinc in slag and is calculated according to 3%, and the rate of recovery is calculated according to 80%, 200,000 t/ Recyclable 1.9 ten thousand t/a of zinc of cupper smelting of a, greatly improves the economic benefit of enterprise, while enormously simplifying Slag treatment Technological process, floor space reduces significantly, also solves the potential pollution risk of slag tailing.

The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.

Claims

1. a kind of anode copper production method, which is characterized in that the production method includes the following steps：Copper matte regulus is delivered to and makes copper In stove, and oxygen-enriched air is sprayed into copper stove oxidation processes are carried out to the copper matte regulus, in described make so that the copper matte regulus carries out making copper Reaction, generates the anode copper；Wherein, the percent by volume of oxygen is 30~80% in the oxygen-enriched air.

2. anode copper production method according to claim 1, which is characterized in that in described the step of making copper reaction, simultaneously Cold burden is added in copper stove to described make, and/or water mist is sprayed into copper stove to described make, and/or outside the furnace body for making copper stove Cooling element is arranged in portion；The wherein described cold burden includes one or more in copper scap, adopting electrolysis residual pole copper and solid-state copper matte regulus.

3. anode copper production method according to claim 2, which is characterized in that it is described make copper reaction the step of in, into Row the oxidation processes the step of after, obtain metallic copper and it is described make copper ashes,

When in the metallic copper for making in copper stove it is oxygen-containing be less than 0.2wt% when, by it is described make copper ashes discharge described in make copper stove, it is described Metallic copper is as the anode copper；

When in the metallic copper for making in copper stove it is oxygen-containing be higher than 0.2wt% when, by it is described make copper ashes discharge described in make copper stove after, to Described make is passed through reducing agent to carry out reduction reaction to the Cu oxide impurity in the metallic copper in copper stove, and then obtains described Anode copper.

4. anode copper production method according to any one of claim 1 to 3, which is characterized in that carried out to the copper matte regulus In the step of oxidation processes, flux is added from the top for making copper stove；Meanwhile copper stove is made to described by the way of bottom blowing It is middle to spray into the oxygen-enriched air progress oxidation processes, or optionally spray into reducing agent and carry out the reduction reaction.

5. anode copper production method according to claim 4, which is characterized in that the flux is selected from quartz and/or stone Lime stone.

6. anode copper production method according to claim 4, which is characterized in that the reducing agent is selected from natural gas, liquefaction It is one or more in oil gas and solid carbon based reductive.

7. anode copper production method according to claim 6, which is characterized in that the solid carbon based reductive is fine coal And/or lump coal.

8. anode copper production method according to any one of claim 1 to 7, which is characterized in that the copper of the copper matte regulus contains Amount is more than or equal to 70wt%.

9. anode copper production method according to claim 8, which is characterized in that the copper content of the copper matte regulus be 70~ 78wt%.