CN102876902A - Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace - Google Patents
Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace Download PDFInfo
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- CN102876902A CN102876902A CN2012103966931A CN201210396693A CN102876902A CN 102876902 A CN102876902 A CN 102876902A CN 2012103966931 A CN2012103966931 A CN 2012103966931A CN 201210396693 A CN201210396693 A CN 201210396693A CN 102876902 A CN102876902 A CN 102876902A
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Abstract
The invention discloses a method for composite smelting of a copper concentrate flash-molten bath and an outokumpu flash furnace. The method for composite smelting comprises the following steps: (1) dried copper concentrate, quartz sand, return dust, oxygen-enriched air and natural gas are injected into a reaction tower of the outokumpu flash furnace for flash smelting through a concentrate nozzle and a fuel nozzle, and then enter a sedimentation tank of the outokumpu flash furnace; (2) copper matte and slag are further generated in the sedimentation tank, and clarification separation is carried out; the slag on a melt is discharged out of the sedimentation tank through an overflow port in a sedimentation wall, so that the flash smelting is finished; and solid reducing agents are sprayed to the surface of the melt at high velocity through air or the oxygen-enriched air. By adopting the method, the yield of the outokumpu flash furnace is greatly improved, the clarification separation from the copper matte is accelerated, and the copper which is contained in the slag is reduced.
Description
Technical field
The present invention relates to for the copper ore concentrates melting method of Outokumpu Flash Smelting Furnace and the Outokumpu Flash Smelting Furnace of realization the method.
Background technology
Modern advanced copper sulfide concentrate smelting technology comprises flash smelting and bath smelting, flash smelting mainly contains Outokumpu flash smelting (Outokumpu) and because of Ke (Inco) flash smelting technique, bath smelting comprises oxygen-enriched bottom-blowing technique (Shuikoushan method), oxygen-enriched side-blowing (Noranda process, Wa Niukefufa, Jin Fengfa, silver method etc.), oxygen-enriched top blowing (Mitsubishi process etc.), submergence top-blown method (Ai Safa, Ausmelt method etc.).The Outokumpu Flash Smelting Furnace is comprised of reaction tower, settling tank, funnel uptake three parts, copper ore concentrates is sprayed into by the concentrate burner at reaction tower top, in reaction tower, finish the generative process of oxidation reaction process and part matte, slag, in settling tank, finish the generative process of matte, slag, and carry out clarified separation.At present, the year concentrate treatment capacity of Flash Smelting Furnace has reached 1,600,000 tons, further improves the restriction that production capacity has been subject to the abilities such as concentrate metered charge system, concentrate burner, reaction tower thermal load.The settling tank area is very large, the generative process of matte and slag can be finished in a short period of time, the clarified separation of matte and slag also can reach lower slag cupric in the short period of time, further reduces the slag cupric and need to take enhancements, comprises reduction and stirring.Although present settling tank area is very large, but the intensity of metallurgical process is very low, hearth area is not fully utilized, if can utilize settling tank to carry out bath smelting, then still improves a lot at aspects such as improving Flash Smelting Furnace throughput, reduction slag cupric.
Summary of the invention
Purpose of the present invention just provides a kind of copper ore concentrates flash-molten bath compound smelting method and Outokumpu Flash Smelting Furnace, takes full advantage of settling tank and carries out bath smelting, improves Flash Smelting Furnace throughput, reduces the slag cupric.
The technical solution used in the present invention is: a kind of copper ore concentrates flash-molten bath compound smelting method, and it is to carry out melting in the Outokumpu Flash Smelting Furnace, it may further comprise the steps:
(1) with dry copper ore concentrates, quartz sand, return dirt and oxygen-rich air, Sweet natural gas carries out flash smelting by the reaction tower that Outokumpu Flash Smelting Furnace concentrate burner and fuel nozzle inject the Outokumpu Flash Smelting Furnace, the material that part generates matte, slag enters the settling tank of Outokumpu Flash Smelting Furnace;
(2) in settling tank, further finish the generation of matte, slag, and carry out clarified separation; Slag above the melt is discharged settling tank by the overflow port on the precipitation wall, finishes flash smelting;
It is characterized in that spraying solid reductant to bath surface at a high speed with air or oxygen-rich air in the generative process of finishing matte, slag of described step 2.Described solid reductant is the identical dry copper ore concentrates of feed stock for blast furnace, return dirt, quartzy flux, coal mixtures.
Adopt technique scheme, the peroxidation of part copper concentrate generates Fe
3O
4, oxygen debtization of part copper concentrate, the not oxidation of small part copper ore concentrates is green state and falls into settling tank.Mix in peroxidation concentrate particle and oxygen debtization concentrate particle and a small amount of settling tank of raw material below reaction tower, redox reaction occurs, the peroxidation particle is made Fe by oxygen debtization and raw material reduction
3O
4Content, the one-step desulfurization of going forward side by side.In the normergic situation in reaction tower, from reaction tower, drop to the Fe of settling tank bath surface
3O
4, redox reaction can occur in raw material, under-oxidized concentrate alternately, makes the raw material oxidizing fusion, makes Fe
3O
4Content makes under-oxidized material oxidation to lower level, and the balance of the amount of reaching and produce uniform settling tank melt does not have the accumulation of raw material, Fe can not occur yet
3O
4High dry slag layer.But, if reaction condition worsens in the reaction tower, the raw material heap will appear, thicker dry slag layer is arranged in the slag, the mobile variation of slag, matte slag separation difficulty causes the slag cupric to raise, a large amount of raw material enter fume exhaust system, cause dust rate to raise the technology troubles such as fume exhaust system obstruction.With oxygen-rich air at a high speed to bath surface jet drying copper ore concentrates, return dirt, quartzy flux, coal etc.Solid materials mixes with the high speed oxygen-rich air in spray gun, and the bath surface below oxygen-rich air sprays at high speed forms fierce stirring area in melt.The melt that stirs has formed gas-slag-matte foam and milk sap with oxygen-rich air, the solid materials that sprays into, the metallurgical reactions such as thermolysis, oxidation, fusing occur rapidly in solid materials under high temperature, strong oxidizing atmosphere, finish slag making, the process of the copper that manufactures ice, and produce SO2 flue gas and a small amount of flue dust.Because stirring of melt fierceness, and formed gas-slag-matte foam and milk sap, heat, the mass transfer of copper ore concentrates and melt and oxygen-rich air are very fast, fusing and metallurgical reaction are finished in a short period of time, the matte that generates, slag melt flow to the cinder notch direction of funnel uptake side, after leaving the Melt Stirring district, carry out clarified separation at the rear portion of settling tank.
Fall into the reaction product of settling tank from reaction tower, its level of response and fusing degree are inhomogeneous, wherein contain a large amount of Fe
3O
4With unreacted sulfide completely, and a small amount of raw material, after these reaction product are mixed in settling tank cross reaction occurs, most of Fe
3O
4By completely sulfide and raw material reduction of unreacted, and with quartzy flux slag making, heat release also discharges SO
2Gas.When reaction condition is undesired, excessive Fe
3O
4To cause the appearance that raw material are piled under the reaction tower with raw material, perhaps slag contains Fe
3O
4Too high and poor fluidity, matte-slag can't clarified separation.In the reaction tower outlet high-speed spray gun is installed,, with the stirring of melt fierceness, is made the product of reaction tower carry out better the transmission of heat, matter, thereby make Fe to reductive agents such as bath surface high-velocity jet copper ore concentrates, coals with oxygen-rich air
3O
4With unreacted sulfide contact reacts fully completely, accelerated oxidation reduction process; The stirring of melt is involved in melt with raw material, as Fe
3O
4Reductive agent, oxidation heat liberation and melting; The coal that sprays into both acted as a fuel, the heat of supplementation with copper concentrate reaction, and again as reductive agent, reduction Fe
3O
4And Cu
2O improves the flowability of slag, accelerates the clarified separation with matte, reduces the slag cupric.
Therefore the technical solution used in the present invention not only improves the throughput of Flash Smelting Furnace, also can improve the character of Flash Smelting Furnace slag, reduces the slag cupric.
A kind of Outokumpu Flash Smelting Furnace for above-mentioned flash-molten bath compound smelting method, it comprises reaction tower, settling tank and funnel uptake, settling tank is provided with overflow port, the top that it is characterized in that described settling tank is fixed with spray gun, described spray gun is connected with dried ore deposit wind-force transfer pressure tank pipe, do wind-force transfer pressure tank top, ore deposit and be provided with dried ore storage bin, dried ore storage bin discharge port is connected with dried ore deposit wind-force transfer pressure tank inlet tube.
Described spray gun is 6 to 10.
Description of drawings
Fig. 1 is Outokumpu Flash Smelting Furnace synoptic diagram of the present invention.
Embodiment
The flash of present embodiment copper ore concentrates-molten bath compound smelting method, the smelting process of present embodiment is carried out in an Outokumpu Flash Smelting Furnace, the Outokumpu Flash Smelting Furnace of present embodiment as shown in Figure 1, the configuration that is metered into the design of system configuration, concentrate burner, fuel gun of the Proper Design of reaction tower, solid materials etc. all keeps original design of flash smelting constant; The copper ore concentrates that reaction tower is processed, return the solid materials such as dirt, flux and treatment capacity constant; The technology controlling and process mode of thermal equilibrium, material balance is constant.On reaction tower outlet settling tank top 6 ~ 10 wind-material high-speed spray guns are installed, are entered in the settling tank from the settling tank tip cutting, apart from settling tank melt face 300 ~ 500mm.Every spray gun is made of two concentric tubes that pass furnace roof, diameter of inner pipe 5cm, and outer tube diameter 10cm, outer tube is apart from melt face 300 ~ 500mm, and inner tube is on furnace roof or furnace roof.Concentrate and quartz sand are dried to moisture less than 1%, be delivered to the dried ore storage bin of furnace roof, with coal, return dirt etc. and add wind-force transfer pressure tank, carry and add with the pneumatic feeding device inner tube of spray gun with wind-force, mix with the high speed oxygen-rich air in inner tube outlet, spray to bath surface with the speed of 130 ~ 150m/s, stir consumingly melt, finish the metallurgical reaction process of copper ore concentrates, and reach reduction Fe
3O
4, improve the purpose of slag character.
The slag of reaction tower Flash Smelting output, matte melt flow to top-submerged lance bath smelting district, stirred intensely by the spray gun jet, form foam and the milk sap of gas-matte-slag-concentrate, be involved in copper ore concentrates, make its thermolysis, oxidation, fusing, make simultaneously the Fe of melt
3O
4Reduction.Spray gun also makes the melt under the reaction tower stir, and accelerates the transmission of heat, matter and the material cross reaction under the reaction tower is accelerated, and is difficult to form the raw material heap.Melt by the spray gun bath smelting continues to flow to the cinder notch of funnel uptake side, enters the settling section of relatively placidity, carries out separating of matte and slag.Slag flows into the further dilution of slag cleaning furnace, shrend behind the reduction slag cupric.Perhaps directly overflow discharge carries out slow cooling, flotation in cinder ladle.
The reaction of reaction tower flash and the settling tank bath smelting of flash-molten bath compound smelting carry out respectively independently technology controlling and process, form with identical target matte grade, temperature and slag, thermal equilibrium and the mass balance of carrying out are respectively separately calculated, and each self-acting control is done ore deposit charging capacity, oxygen-enriched blasting amount and oxygen-rich concentration, fuel quantity.
Because the below melt high degree of agitation of spray gun in the settling tank, the furnace bottom of spray gun below does not have the generation of furnace accretion, and furnace bottom need to increase the thickness of refractory brick.Because near the thermal load the thermal load of the settling tank increase, particularly spray gun increases, and needs to improve near the design of the furnace binding of spray gun, increases the cooling copper water jacket of particular design, strengthen the body of heater cooling.
The concentrate treatment capacity of reaction tower Flash Smelting can arrive 200t/h, and the concentrate treatment capacity of settling tank oxygen-enriched top blowing bath smelting can arrive 100t/h, and the throughput of single cover flash-molten bath compound smelting technique can improve 50%.
As shown in Figure 1, the Outokumpu Flash Smelting Furnace of flash-molten bath compound smelting method, it comprises reaction tower, settling tank and funnel uptake, settling tank is provided with overflow port, the top that it is characterized in that described settling tank is fixed with spray gun, described spray gun is connected with dried ore deposit wind-force transfer pressure tank pipe, does wind-force transfer pressure tank top, ore deposit and is provided with dried ore storage bin, and dried ore storage bin discharge port is connected with dried ore deposit wind-force transfer pressure tank inlet tube.The spray gun of present embodiment is 9.
The inventive method; the applicant think if with air or oxygen-rich air to settling tank melt jet solid reductant; stir melt; redox reaction with precipitation mediocre person material under the accelerated reaction tower; reduce generation and the harm of raw material under the reaction tower; reduce the generation of dry slag in the slag, improve the flowability of slag, should fall into the protection domain of this patent.
Claims (3)
1. copper ore concentrates flash-molten bath compound smelting method, it is to carry out melting in the Outokumpu Flash Smelting Furnace, it may further comprise the steps:
(1) with dry copper ore concentrates, quartz sand, return dirt and oxygen-rich air, Sweet natural gas carries out flash smelting by the reaction tower that Outokumpu Flash Smelting Furnace concentrate burner and fuel nozzle inject the Outokumpu Flash Smelting Furnace, the material that part generates matte, slag enters the settling tank of Outokumpu Flash Smelting Furnace;
(2) in settling tank, further finish the generation of matte, slag, and carry out clarified separation; Slag above the melt is discharged settling tank by the overflow port on the precipitation wall, finishes flash smelting;
It is characterized in that spraying solid reductant to bath surface at a high speed with air or oxygen-rich air in the generative process of finishing matte, slag of described step 2, described solid reductant for the dry copper ore concentrates identical with feed stock for blast furnace, return dirt, quartzy flux, coal mixtures.
2. Outokumpu Flash Smelting Furnace that is used for the described flash of claim 1-molten bath compound smelting method, it comprises reaction tower, settling tank and funnel uptake, settling tank is provided with overflow port, the top that it is characterized in that described settling tank is fixed with spray gun, described spray gun is connected with dried ore deposit wind-force transfer pressure tank pipe, do wind-force transfer pressure tank top, ore deposit and be provided with dried ore storage bin, dried ore storage bin discharge port is connected with dried ore deposit wind-force transfer pressure tank inlet tube.
3. Outokumpu Flash Smelting Furnace according to claim 2 is characterized in that described spray gun is 6 to 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103966931A CN102876902A (en) | 2012-10-18 | 2012-10-18 | Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace |
| CN201310479328.1A CN103540763B (en) | 2012-10-18 | 2013-10-14 | Copper concentrate flash-bath composite smelting process and Outokumpu flash smelting furnace implementing process |
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| CN2012103966931A CN102876902A (en) | 2012-10-18 | 2012-10-18 | Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace |
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| CN201310479328.1A Active CN103540763B (en) | 2012-10-18 | 2013-10-14 | Copper concentrate flash-bath composite smelting process and Outokumpu flash smelting furnace implementing process |
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Cited By (7)
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| CN104561587A (en) * | 2015-01-20 | 2015-04-29 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Concentrate jet nozzle of smelting furnace |
| CN104880073A (en) * | 2015-06-23 | 2015-09-02 | 邹镇 | Novel one-step fusion blowing smelting device |
| WO2015131438A1 (en) * | 2014-03-04 | 2015-09-11 | 北京科技大学 | Device for online modification of thermal-state smelting slag |
| CN104928492A (en) * | 2015-06-15 | 2015-09-23 | 中国瑞林工程技术有限公司 | Flash side-blowing smelting device and flash side-blowing smelting method |
| CN109266866A (en) * | 2017-08-30 | 2019-01-25 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Copper concentrate bath smelting technique |
| CN110396606A (en) * | 2019-09-05 | 2019-11-01 | 天津闪速炼铁技术有限公司 | A kind of flash metallurgy gas package integral supply system and method for mixing |
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| CN106048253A (en) * | 2016-07-27 | 2016-10-26 | 中国恩菲工程技术有限公司 | Copper smelting equipment |
| CN106048252A (en) * | 2016-07-27 | 2016-10-26 | 中国恩菲工程技术有限公司 | Copper smelting equipment |
| CN109468469B (en) * | 2019-01-16 | 2020-07-24 | 杭州电子科技大学 | Device and method for reducing molten copper slag by blowing carbon through composite gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115322A (en) * | 1988-10-25 | 1990-04-27 | Sumitomo Metal Mining Co Ltd | Operating method for flash smelting furnace |
| CN102605191A (en) * | 2012-04-16 | 2012-07-25 | 阳谷祥光铜业有限公司 | Method for directly producing row copper by copper concentrate |
| CN102690919A (en) * | 2012-06-01 | 2012-09-26 | 中国瑞林工程技术有限公司 | Flash smelting method of iron |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI116069B (en) * | 2002-06-11 | 2005-09-15 | Outokumpu Oy | Procedure for making raw cups |
| CN100577829C (en) * | 2007-09-29 | 2010-01-06 | 中国瑞林工程技术有限公司 | Floating smelting and immersed air refining integrated continuous copper smelting method and device |
-
2012
- 2012-10-18 CN CN2012103966931A patent/CN102876902A/en active Pending
-
2013
- 2013-10-14 CN CN201310479328.1A patent/CN103540763B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115322A (en) * | 1988-10-25 | 1990-04-27 | Sumitomo Metal Mining Co Ltd | Operating method for flash smelting furnace |
| CN102605191A (en) * | 2012-04-16 | 2012-07-25 | 阳谷祥光铜业有限公司 | Method for directly producing row copper by copper concentrate |
| CN102690919A (en) * | 2012-06-01 | 2012-09-26 | 中国瑞林工程技术有限公司 | Flash smelting method of iron |
Non-Patent Citations (3)
| Title |
|---|
| 《有色金属（冶炼部分）》 20090430 周松林 祥光"双闪"铜冶炼工艺及生产实践 第11-15、20页 1-3 , 第2期 * |
| 周松林: "祥光"双闪"铜冶炼工艺及生产实践", 《有色金属（冶炼部分）》, no. 2, 30 April 2009 (2009-04-30) * |
| 李卫民等: "奥托昆普粗铜闪速熔炼工艺", 《中国有色冶金》, no. 3, 30 June 2010 (2010-06-30), pages 1 - 6 * |
Cited By (7)
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|---|---|---|---|---|
| WO2015131438A1 (en) * | 2014-03-04 | 2015-09-11 | 北京科技大学 | Device for online modification of thermal-state smelting slag |
| CN104561587A (en) * | 2015-01-20 | 2015-04-29 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Concentrate jet nozzle of smelting furnace |
| CN104928492A (en) * | 2015-06-15 | 2015-09-23 | 中国瑞林工程技术有限公司 | Flash side-blowing smelting device and flash side-blowing smelting method |
| CN104880073A (en) * | 2015-06-23 | 2015-09-02 | 邹镇 | Novel one-step fusion blowing smelting device |
| CN109266866A (en) * | 2017-08-30 | 2019-01-25 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Copper concentrate bath smelting technique |
| CN110396606A (en) * | 2019-09-05 | 2019-11-01 | 天津闪速炼铁技术有限公司 | A kind of flash metallurgy gas package integral supply system and method for mixing |
| CN115367777A (en) * | 2022-10-02 | 2022-11-22 | 吕文广 | Preparation method of battery-grade lithium carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103540763A (en) | 2014-01-29 |
| CN103540763B (en) | 2015-07-01 |
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Application publication date: 20130116 |