CN105087956B - Smelting furnace for continuously smelting blister copper through copper sulfide concentrate and smelting method of smelting furnace - Google Patents
Smelting furnace for continuously smelting blister copper through copper sulfide concentrate and smelting method of smelting furnace Download PDFInfo
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Abstract
The invention provides a smelting furnace for continuously smelting blister copper through copper sulfide concentrate and a smelting method of the smelting furnace. The smelting furnace is an integrated metallurgical furnace with the front-end top-blown smelting function, the middle electric furnace setting function and the tail-end matte continuous converting function and comprises a front-end top-blown smelting furnace, a middle setting electric furnace and a tail-end matte continuous converting furnace with the bottoms communicated sequentially. According to the smelting method, the procedures that the copper sulfide concentrate is continuously smelted into mixed melt of matte and slag through the converting furnace, settling separation of the matte and the slag is performed continuously, and the matte is continuously blown into blister copper are not needed. The three metallurgical processes that the copper sulfide concentrate is smelted into the mixed melt of the matte and the slag, settling separation of the matte and the slag is performed, and the matte is continuously blown into the blister copper can be continuously finished, the equipment structure and the operation process are simple, energy consumption is low, and environmental friendliness and safety are achieved.
Description
Technical field
The present invention relates to Non-ferrous Metallurgy Apparatus and method for technical field is and in particular to the pyrometallurgical smelting of copper sulfide concentrate
Apparatus and method for.
Background technology
Copper sulfide concentrate smelt produce copper method be generally divided into two main smelting process for production steps, the first step be by
Copper sulfide concentrate smelts the slag for matte and low copper, and second step is that the blowing refinement of the matte is become blister copper.Traditional Copper making technique is
Be blister copper with shaft smelting copper concentrate with reverberatory furnace blowing matte, feature is that process is simple, small scale, high energy consumption,
High labor intensive, environmental pollution is serious.
Round atmospheric pollution prevention and control and two central topics of energy-conservation, country variant has developed the copper metallurgy that many differs from one another
New technology, and obtain commercial Application.Wherein, new method copper sulfide concentrate melting being matte specifically includes that (1) Rouyn-Noranda refines
Copper method: be developed in 1967 by Canadian Noranda Mines Ltd..Noranda furnace used is actually an oversize
Ps converter, the stove outer covering with device for revolving and driving, liner chromium and magnesium brick.Rouyn-Noranda copper smelter both can be directly produced blister copper,
High-grade matte can be produced, but being directly produced blister copper, to there is blister copper second-rate, the impurity content such as sulfur and rare and scatter element is high, slag
The shortcomings of cupric is high, furnace life is short.(2) mitsubishi continuous copper smelting: be that Mitsubishi metal company is developed in 1974.The party
Method is by smelting furnace (s stove), converting furnace (c stove) and three stoves of slag depletion electric furnace (cl stove) are separate but matte and slag
It is made up of the stove that chute is interconnected.The high-grade matte of smelting furnace output and Slag Blend are continuously flowed into electric furnace clarification
Separate, the slag isolated continuously flows out water quenching, and matte is continuously flowed into converting furnace.The blister copper of converting furnace output continuously flows
Come in and go out anode furnace, a small amount of blowing slag continuously water quenching Returning smelting stove.Smelting furnace (s stove), electric furnace (cl stove), converting furnace (c stove)
And 2 anode furnaces must run simultaneously, and tight association.The shortcoming of the method is that between three stoves, the degree of association is too high, mutually
Phase restriction is larger, operates the careless slightly technique that results in be difficult to continuously, the therefore current popularization and application of this technique are few.(3)inco
Oxygen flash smelting method: also known as International nickel Co. Ltd. Inco. Ltd.'s oxygen flash smelting.The method is water content is 0.1% furnace charge is dried and contains
The industrial oxygen of oxygen 95% sprays in stove from the concentrate burner level at stove two ends.Concentrate burner is that the water-cooled of lined ceramicses is stainless
Steel pipe.The matte generating grade 45～55% send ps to bessemerize.The direct water of slag of cupric about 0.7% is broken discarded.Containing so2For
70～80% flue gas is discharged from the uptake flue in the middle part of stove and is directly sent flue gas dust collection system.Flue gas is in order to manufacture liquid
Body sulfur dioxide, elementary sulfur or sulphuric acid.The shortcoming of the method is that copper concentrate melting auxiliary auxiliary facility is many, and material needs to do stokehold
Pretreatment, smelting cost is high, and stove has high demands to entering stokehold material performance.(4) Teniente modified converter smelting process: be country of Chile
What the card Leto Nei Si smeltery of Te Niente branch company of Tong Ye company researched and developed adds copper essence in converter while blowing matte
Ore deposit carries out the technology of melting.Its principle is to be used for melting copper concentrate by substantial amounts of for common the blowing refinement of the matte process delayed heat.Used
Equipment substantially similar to ps converter or noranda furnace.The feature of the method and deficiency are that a large amount of concentrate enter stokehold place need to be dried
Reason, enters stove and has high demands containing water management to concentrate, and stokehold processing cost is high, and the Copper in Slag of melting output is higher in addition it is also necessary to supporting go back
The rotary furnace of former sedimentation slag, to reduce Copper in Slag.(5) top blast puritic process: the method is north Nie Ye company of the Soviet Union
Initially with for processing copper-nickel concentrate.The principle of top blast puritic process is similar to Wa Niukefufa.It is a fixation
Set concentrate in stove top and add mouth and oxygen top blown spray gun, using the industrial oxygen of 95% concentration.Oxygen rifle keeps one away from liquid level
Fixed height, by the impact of high pressure draught, stirs melt and oxidic concentrate.The matte of output grade 60% send to be bessemerized, slag
Cupric about 1.5% send electric dilution to process.The feature of the method and deficiency are that disposal ability is little, are only capable of carrying by increasing stove
High production capacity, the Copper in Slag of fusion process output is higher, slag copper inferior separating effect in stove.(6) ias/ausmelt smelting process: belong to
Bath smelting category, is widely used in the fields such as copper, stannum, lead, iron and steel.Develop very fast over nearly 10 years, the whole world is built or is building
More than 40.Top blast submergence melting law technology has melting concentration height, and furnace sealing is good, and workshop environmental protection condition is good, knot
Structure is simple, and concentrate need not specially be dried, the advantages of investment is relatively low.The shortcoming of the method is that disposal ability is difficult to dash forward
Broken, yield lifting can only be realized by increasing stove at present.(7) Outokumpu flash smelting: Outokumpu Flash Smelting Furnace industry
Changed in 1949, the 50% about of current world copper yield is produced by Outokumpu Flash Smelting Furnace.Separate unit Flash Smelting Furnace copper max yield
More than 400kt.Because arranging concentrate depth drying device, Flash Smelting Furnace installs the reason such as a large amount of Copper Water Jackets, when design scale relatively
Hour, there is a problem of that the construction investment of specific yield is higher.The process that the blowing refinement of the matte is become blister copper mainly adopts ps
Converter.Ps converter is the traditional handicraft being generally used, and about 85% matte is using bessemerizing in the world.Ps bessemerizes
Technology maturation is reliable, but because of ps converter intermittent operation, exhaust gas volumn fluctuates, and big, fire door air leak rate of air curtain is high, so2Smoke spillage etc. is former
Cause, is difficult to effect a radical cure the problems such as lead to low latitude smoke pollution.For this both at home and abroad all in research and development with to promote the use of continuous converting new
Technique replaces ps converter, or ps converter installation is improved, such as flash blowing, ausmelt top blast immersed air refining, Huo Boken rainbow
Absorb stove etc., after improvement, technique absorbs the advantage that flash blowing disposal ability is big, settling area is big, slag rate is low, absorbs
Ausmelt top blast immersed air refining material performance is required low, process without stokehold, the strong advantage of removing impurities ability, absorb Huo Bo
Region of blowing is entered in willing siphon bessemer matte siphon, directly blow, realize matte advantage detached with smelting slag etc., abandon before
Described each type of furnace shortcoming.
Not only equipment is complicated, investment is big for the said equipment and method, complex process, and all there is a problem of one common,
Copper sulfide concentrate will smelt and become with by the blowing refinement of the matte the technique of blister copper discontinuous for matte and the slag technique of low copper, two sections of works
Converter is needed, the matte obtaining the melting of FEOL and low Cu-S ore and blend melt pass through intermediate equipment between skill
Transfer to the converting furnace of blowing blister copper, power consumption, time-consuming, work efficiency are low, kiln process flue gas overflows big for environment pollution, also there is peace
Full hidden danger.
Content of the invention
Present invention aim to address the problem that above-mentioned prior art exists, provide one kind can be continuously finished copper sulfide concentrate
Settlement separate, the matte continuous converting that are smelted into blend melt, matte and the slag of matte and slag are three metallurgy of blister copper
Process, device structure and operating procedure are simple, energy consumption is low, environmental protection, safety copper sulfide concentrate continuous smelting blister copper smelting furnace
And its method of smelting.
The purpose of the present invention is achieved through the following technical solutions:
A kind of smelting furnace of copper sulfide concentrate continuous smelting blister copper, described smelting furnace is front end top blow smelting, middle electric furnace
Sedimentation, the integral type metallurgical furnace of end matte continuous converting, include the front end top blow smelting stove that bottom sequentially connects, middle heavy
Fall electric furnace, end matte continuous-blowing furnace；Described front end top blow smelting stove includes the melting that top is provided with copper sulfide concentrate entrance
Area's body of heater, the copper sulfide concentrate melting spray gun from smelting zone body of heater top insertion smelting zone burner hearth, it is arranged at smelting zone body of heater top
The melting exhanst gas outlet in portion；Described intermediate sedimentation electric furnace includes electric furnace area body of heater, the electricity being arranged on electric furnace area body of heater furnace wall
Slag emission mouth, insert the electrode of electric furnace area burner hearth, be arranged at the sedimentation electricity at electric furnace area body of heater top from electric furnace area body of heater top
Stove area fume emission mouth；Described end matte continuous-blowing furnace includes top and is provided with the blowing area stove that blowing flux adds mouth
Body, the blowing spray gun from blowing area body of heater top insertion blowing area burner hearth, be arranged at blowing area bottom of furnace body blister copper discharge port,
It is arranged at the blowing slag discharge port of blowing area body of heater furnace wall, being arranged at the blowing area exhanst gas outlet in the body of heater furnace roof portion of area that blows；
The bottom of smelting zone burner hearth is connected with the bottom of electric furnace area burner hearth, and the bottom of electric furnace area burner hearth is connected with the bottom of blowing area burner hearth
Logical.
The bottom surface of the bottom surface of smelting zone of the present invention burner hearth and electric furnace area burner hearth is the continuous inclined-plane being gradually lowered backward, blowing
The bottom surface of area's burner hearth is less than the bottom surface of electric furnace area burner hearth.
A kind of method of smelting of the smelting furnace of copper sulfide concentrate continuous smelting blister copper, the method is to need not move through converter even
Continuous ground copper sulfide concentrate is smelted into after matte and the blend melt of slag to be carried out continuously matte settlement separate with slag continuous again
The blowing refinement of the matte is become blister copper, particularly as follows: smelting material is added to melting from the copper sulfide concentrate entrance of front end top blow smelting stove
In the blend melt molten bath of area's lower furnace portion, oxygen and compressed air are sprayed into melting molten bath from melting spray gun, by copper sulfide
Concentrate oxidizing semlting, obtains the blend melt of liquid matte and slag, containing so2Flue gas from melting exhanst gas outlet discharge；Liquid
The blend melt of matte and slag flows directly into intermediate sedimentation electric furnace by the foot passage of smelting zone burner hearth and electric furnace area burner hearth,
In electric furnace area burner hearth, settlement separate one-tenth matte floor and the electric furnace slag blanket floating on matte floor, keep molten by electrifying electrodes heating
Temperature, the flue gas that electric furnace area produces is discharged out of the furnace by settling electric furnace area fume emission mouth, and electroslag is from electroslag floss hole
Discharge is come out of the stove outer；The matte falling to electric furnace area burner hearth bottom passes through the passage inflow of electric furnace area burner hearth and blowing area burner hearth bottom
End matte continuous-blowing furnace, adds mouth to add flux and blowing area lower furnace portion blowing area molten bath matte and ice from blowing flux
Blowing slag mixing in layers of copper, oxygen and compressed air are added in the slag layer of blowing area molten bath by the spray gun that blows, will
The blowing refinement of the matte becomes blister copper, and the flue gas that blowing produces is discharged out of the furnace by blowing area's burner hearth and through blowing area exhanst gas outlet；Blowing is produced
Raw blister copper is released outside stove by blister copper discharge port.
The inventive method contains so2Flue gas from melting exhanst gas outlet discharge after, can through waste heat boiler and gather dust process after give
Go antacid.The flue gas that electric furnace area produces passes through to settle after electric furnace area fume emission mouth discharges out of the furnace, can carry out gathering dust with tail gas at
Reason.The flue gas that blowing produces passes through to blow area's burner hearth after discharging out of the furnace through the area exhanst gas outlet of blowing, and also can be gathered dust and tail
Gas disposal.
Instant invention overcomes passing by the deficiency that Copper making technique exists, major advantage is:
(1) only need to just to be continuously completed, with a metallurgical furnace, the mixing that copper sulfide concentrate is smelted into matte and slag
Settlement separate, the matte continuous converting of melt, matte and slag are three metallurgical processes of blister copper, and a step is smelted high-quality
Blister copper, the blister copper copper content obtaining is more than 98%, and smelting slag copper content is less than 0.65%, and blowing Copper in Slag amount is less than 12%.
(2) matte and heat of slags are fully used, and energy-saving effect is obvious.
(3) the inventive method, so are adopted2Fluctuation of concentration is little, and the flue gas that smelting furnace produces contains so2Concentration stable 8～
15%, tail gas can realize continuously and stably antacid, so2Utilization rate be more than 98%, environmental protection condition is good, final tail gas can achieve
Qualified discharge.
(4) adopt the inventive method, raw material preparation is simple, in addition to sedimentation electric furnace needs to consume certain electric energy, melting and
Blowing all realizes autogenous smelting it is not necessary to extra fuel, and energy consumption is low.
Brief description
Fig. 1 is the structural representation of smelting furnace of the present invention.
Specific embodiment
The smelting furnace of copper sulfide concentrate continuous smelting blister copper as shown in Figure 1 be front end top blow smelting, the sedimentation of middle electric furnace,
The integral type metallurgical furnace of end matte continuous converting, includes front end top blow smelting stove, the intermediate sedimentation electricity that bottom sequentially connects
Stove, end matte continuous-blowing furnace；Described front end top blow smelting stove includes the smelting zone stove that top is provided with copper sulfide concentrate entrance 1
Body 5, the copper sulfide concentrate melting spray gun 2 from smelting zone body of heater top insertion smelting zone burner hearth 4, it is arranged at smelting zone body of heater top
Melting exhanst gas outlet 3；Described intermediate sedimentation electric furnace includes electric furnace area body of heater 7, the electricity being arranged on electric furnace area body of heater furnace wall
Slag emission mouth 10, insert the electrode 21 of electric furnace area burner hearth 17, be arranged at electric furnace area body of heater top from electric furnace area body of heater top
Sedimentation electric furnace area fume emission mouth 22；Described end matte continuous-blowing furnace includes top and is provided with blowing flux addition mouth 18
Blowing area body of heater 11, the blowing spray gun 19 from blowing area body of heater top insertion blowing area burner hearth 16, be arranged at blowing area body of heater
The blister copper discharge port 12 of bottom, it is arranged at the blowing slag discharge port 15 of blowing area body of heater furnace wall, is arranged at blowing area body of heater stove
The blowing area exhanst gas outlet 20 at top；The bottom of smelting zone burner hearth 4 is connected with the bottom of electric furnace area burner hearth 17, electric furnace area burner hearth 17
Bottom connect with the bottom of blowing area burner hearth 16.Between smelting zone body of heater 5 top and electric furnace area body of heater 7 top and electric furnace area
Respectively mutually disconnected three regions are divided into by partition wall 23,24 between body of heater 7 top and blowing area body of heater 11 top.Smelting zone
The bottom surface of the bottom surface of burner hearth 4 and electric furnace area burner hearth 17 is the continuous inclined-plane being gradually lowered backward, and the bottom surface of blowing area burner hearth 16 is low
In the bottom surface of electric furnace area burner hearth 17, so that the blend melt of the liquid matte of smelting zone burner hearth and slag can rely on deadweight smoothly
Ground voluntarily flows into electric furnace area burner hearth, and the matte liquid of electric furnace area burner hearth can rely on deadweight successfully voluntarily to flow into blowing area stove
Thorax.
The present invention by copper sulfide concentrate continuous smelting become blister copper method of smelting it is not necessary to through converter can continuously by
Copper sulfide concentrate be carried out continuously after being smelted into matte and the blend melt of slag matte and slag settlement separate more continuously by matte
Blow into blister copper, particularly as follows: smelting material is added to smelting zone burner hearth from the copper sulfide concentrate entrance 1 of front end top blow smelting stove
In the blend melt molten bath 6 of 4 bottoms, oxygen and compressed air are sprayed into melting molten bath from melting spray gun 2, by copper sulfide concentrate
Oxidizing semlting, obtains the blend melt of liquid matte and slag, containing so2Flue gas discharge from melting exhanst gas outlet 3, through waste heat pot
Antacid is sent to after stove and process of gathering dust.The blend melt of liquid matte and slag passes through smelting zone burner hearth 4 and electric furnace area burner hearth 17
Foot passage flow directly into intermediate sedimentation electric furnace, settlement separate one-tenth matte floor 9 and float on matte floor in electric furnace area burner hearth 17
On electric furnace slag blanket 8, melt temperature is kept by electrode 21 electrified regulation, the flue gas that electric furnace area produces passes through to settle electric furnace area cigarette
Gas floss hole 22 discharges out of the furnace, and is gathered dust and vent gas treatment, and electroslag is from electroslag floss hole 10 discharge is come out of the stove.Fall to
The matte of electric furnace area burner hearth bottom passes through electric furnace area burner hearth and flows into end matte continuous converting with the passage of blowing area burner hearth bottom
Stove, adds mouth 18 to add flux and the blowing blown area's burner hearth 16 bottom blowing area molten bath matte and matte floor from blowing flux
Slag 14 mixes, and oxygen and compressed air is passed through blowing spray gun 19 and is added in the slag layer of blowing area molten bath, by the blowing refinement of the matte
Become blister copper 13, the flue gas that blowing produces passes through blowing area burner hearth 16 and discharges out of the furnace through blowing area exhanst gas outlet 20, is gathered dust
And vent gas treatment.The blister copper 13 that blowing produces is released outside stove by blister copper discharge port 12.
The invention provides a kind of copper sulfide concentrate continuous smelting becomes matte matte and the settlement separate ice of slag
Copper converting becomes the novel device of blister copper and its new method of continuous smelting, by front end top blow smelting, middle electric furnace sedimentation, end ice
Copper continuous converting forms a continuously production process, has that production efficiency is high, equipment and process is simple, energy consumption be low, ring
The congruent remarkable advantage of security personnel.
Claims (6)
1. a kind of smelting furnace of copper sulfide concentrate continuous smelting blister copper it is characterised in that described smelting furnace be front end top blow smelting,
Middle electric furnace sedimentation, the integral type metallurgical furnace of end matte continuous converting, include the front end top blow smelting that bottom sequentially connects
Stove, intermediate sedimentation electric furnace, end matte continuous-blowing furnace；Described front end top blow smelting stove includes top and is provided with copper sulfide concentrate entering
The smelting zone body of heater (5) of mouth (1), the copper sulfide concentrate melting spray gun from smelting zone body of heater top insertion smelting zone burner hearth (4)
(2), it is arranged at the melting exhanst gas outlet (3) at smelting zone body of heater top；Described intermediate sedimentation electric furnace includes electric furnace area body of heater
(7), be arranged at electroslag floss hole (10) on electric furnace area body of heater furnace wall, from electric furnace area body of heater top insertion electric furnace area burner hearth
(17) electrode (21), it is arranged at sedimentation electric furnace area fume emission mouth (22) at electric furnace area body of heater top；Described end matte is even
Continuous converting furnace includes top and is provided with blowing area body of heater (11) of blowing flux addition mouth (18), inserts from blowing area body of heater top
Enter to blow area's burner hearth (16) blowing spray gun (19), be arranged at the blister copper discharge port (12) of blowing area bottom of furnace body, be arranged at and blow
Refine blowing slag discharge port (15) of area body of heater furnace wall, being arranged at blowing area exhanst gas outlet (20) in the body of heater furnace roof portion of area that blows；
The bottom of smelting zone burner hearth (4) is connected with the bottom in electric furnace area burner hearth (17), the bottom in electric furnace area burner hearth (17) and blowing area stove
The bottom connection of thorax (16).
2. a kind of smelting furnace of copper sulfide concentrate continuous smelting blister copper according to claim 1 is it is characterised in that smelting zone
The bottom surface in the bottom surface of burner hearth (4) and electric furnace area burner hearth (17) is the continuous inclined-plane being gradually lowered backward, blowing area's burner hearth (16)
Bottom surface is less than the bottom surface in electric furnace area burner hearth (17).
3. a kind of method of smelting of the smelting furnace of copper sulfide concentrate continuous smelting blister copper as claimed in claim 1 or 2, its feature exists
In the method is to need not move through converter continuously to be smelted into after matte and the blend melt of slag continuously to enter by copper sulfide concentrate
Row matte is settlement separate with slag continuously to become blister copper by the blowing refinement of the matte again, particularly as follows: by smelting material from front end top blow smelting stove
Copper sulfide concentrate entrance (1) be added in the blend melt molten bath (6) of smelting zone burner hearth (4) bottom, will oxygen and compression empty
Gas sprays into melting molten bath from melting spray gun (2), and copper sulfide concentrate oxidizing semlting obtains liquid matte and the mixing of slag is melted
Body, containing so2Flue gas from melting exhanst gas outlet (3) discharge；The blend melt of liquid matte and slag passes through smelting zone burner hearth (4)
Flow directly into intermediate sedimentation electric furnace with the foot passage in electric furnace area burner hearth (17), settlement separate Cheng Bing in electric furnace area burner hearth (17)
Layers of copper (9) and float on electric furnace slag blanket (8) on matte layer, keeps melt temperature by electrode (21) electrified regulation, is produced from electric furnace area
Raw flue gas passes through sedimentation electric furnace area fume emission mouth (22) and discharges out of the furnace, and electroslag is come out of the stove from electroslag floss hole (10) discharge
Outward；The matte falling to electric furnace area burner hearth bottom passes through the passage inflow end matte of electric furnace area burner hearth and blowing area burner hearth bottom
Continuous-blowing furnace, adds mouth (18) to add flux and blowing area burner hearth (16) bottom blowing area molten bath matte and ice from blowing flux
Blowing slag (14) mixing in layers of copper, oxygen and compressed air is passed through blowing spray gun (19) and is added to blowing area molten bath slag
In layer, the blowing refinement of the matte is become blister copper (13), the flue gas that blowing produces passes through blowing area's burner hearth (16) and through blowing area exhanst gas outlet
(20) discharge out of the furnace；The blister copper (13) that blowing produces is released outside stove by blister copper discharge port (12).
4. a kind of method of smelting of the smelting furnace of copper sulfide concentrate continuous smelting blister copper according to claim 3, its feature exists
In containing so2Flue gas from melting exhanst gas outlet (3) discharge after, through waste heat boiler and gather dust process after send to antacid.
5. a kind of method of smelting of the smelting furnace of copper sulfide concentrate continuous smelting blister copper according to claim 3, its feature exists
Pass through to settle after electric furnace area fume emission mouth (22) discharges out of the furnace in the flue gas that, electric furnace area produces, gathered dust and vent gas treatment.
6. a kind of method of smelting of the smelting furnace of copper sulfide concentrate continuous smelting blister copper according to claim 3, its feature exists
In, blowing produce flue gas pass through blow area's burner hearth (16) and through blowing area's exhanst gas outlet (20) discharge out of the furnace after, gathered dust
And vent gas treatment.
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| CN105907987B (en) * | 2016-04-26 | 2017-10-27 | 中国瑞林工程技术有限公司 | Smelting furnace and the method that copper matte regulus is prepared using the smelting furnace |
| CN106282597B (en) * | 2016-08-19 | 2019-01-25 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | The application method of top blast furnace |
| CN106352698A (en) * | 2016-09-09 | 2017-01-25 | 江苏省冶金设计院有限公司 | Smelting furnace |
| CN107699711B (en) * | 2017-09-18 | 2020-05-08 | 中国恩菲工程技术有限公司 | Copper smelting method |
| CN108193057B (en) * | 2018-02-08 | 2023-09-12 | 宜兴曜源科技发展有限公司 | Copper smelting furnace system for adding copper converting slag in hot state and operation method thereof |
| CN109880955B (en) * | 2019-04-17 | 2021-01-08 | 中国恩菲工程技术有限公司 | Smelting method and smelting device for treating iron-based multi-metal ore material in short process |
| CN112746184B (en) * | 2021-04-06 | 2021-07-06 | 中国恩菲工程技术有限公司 | Copper smelting furnace, copper smelting equipment and copper smelting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5511767A (en) * | 1994-06-03 | 1996-04-30 | Mitsubishi Materials Corporation | Copper smelting apparatus |
| CN204982014U (en) * | 2015-09-02 | 2016-01-20 | 云南锡业股份有限公司铜业分公司 | Smelting furnace of thick copper of copper sulfide concentrate continuous smelting |
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- 2015-09-02 CN CN201510556903.2A patent/CN105087956B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5511767A (en) * | 1994-06-03 | 1996-04-30 | Mitsubishi Materials Corporation | Copper smelting apparatus |
| CN204982014U (en) * | 2015-09-02 | 2016-01-20 | 云南锡业股份有限公司铜业分公司 | Smelting furnace of thick copper of copper sulfide concentrate continuous smelting |
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