CN1493715A - Technological method of producing copper anode plate using fuel gas - Google Patents
Technological method of producing copper anode plate using fuel gas Download PDFInfo
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- CN1493715A CN1493715A CNA03157534XA CN03157534A CN1493715A CN 1493715 A CN1493715 A CN 1493715A CN A03157534X A CNA03157534X A CN A03157534XA CN 03157534 A CN03157534 A CN 03157534A CN 1493715 A CN1493715 A CN 1493715A
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Abstract
A process for preparing copper anode plate from gas features that during the fire metallurgy for smelting copper, the gas, natural gas or liquefied petroleum gas is used for heating and holding the temp in its smelting, oxidizing, casting and reducing steps. Its advantages are high purity of copper anode plate (more than 99%), low cost and high effect on decreasing environmental pollution.
Description
Background technology:
At present, in the copper fusion process, all adopt heavy oil to act as a fuel in fusing, oxidation, the casting cycle, earlier with heavy oil through the atomising unit processing that atomizes, heavy oil with atomizing sprays in the melting burner hearth then, melts, intensification, insulation in the whole process of oxidation and casting; Utilize heavy oil to reduce; Come the processing copper anode plate, there are many insoluble problems in heavy oil in burning and reduction process:
1) the heavy oil procurement price is soaring year by year, certainly will cause the raising of copper anode plate tooling cost, about heavy oil price increase to 2000 in the end of the year 2002 yuan one ton.
2) in reduction process, adopt heavy oil, because its carbon containing is about 85%, and how to exist with the CnHm form, its content accounts for more than 95% of heavy oil combustiblecomponents, and heavy oil per ton as calculated reduces has 0.48 ton of form with carbon black to enter burner hearth approximately, enters chimney with flue gas and enters atmosphere, produce a large amount of black smokes, seriously exceed 1 ° of following emission standard of lingemann blackness of environmental requirement,, cause environmental pollution even take secondary combustion still to cause black smoke discharging severe overweight.The black smoke discharging becomes an environmental protection chronic illness in the copper melting always.
3) heat utilization efficiency of heavy oil is low, and reduction process only is 25%, thereby causes the waste of a large amount of heavy oil, and the reductive time and when increasing stove of having extended, lifting production cost.
4) heavy oil is wayward in process of production, and easy especially in the winter time blocking pipe will be used steam insulation, has increased storage link cost and transportation cost.
Recently, the enterprise that has attempt to adopt smokeless cleaned coal be main raw material as reductive agent, be aided with a spot of sodium carbonate again and reduce the method for production of copper positive plate, solve environmental issue, but on epochmaking melting critical process, still use heavy oil.
Summary of the invention
In order to overcome the existing problem of above-mentioned astatki, the invention provides a kind of processing method of utilizing combustion gas production of copper positive plate, adopt coal gas, Sweet natural gas or liquefied petroleum gas (LPG) to substitute the current astatki that adopts, the processing copper anode plate, to make full use of the gas raw material wide material sources, reduce consuming, reduce production costs, and reduce environmental pollution greatly.
The present invention adopts following technical scheme to realize the foregoing invention purpose:
The present invention is in the pyrometallurgy of copper melting is produced, smelting furnace carry out fusing, oxidation and cast in the copper fusion process intensification, be incubated and carry out all adopting in the reductive whole process coal gas, Sweet natural gas or liquefied petroleum gas (LPG) to make fuel, in smelting furnace, spray into coal gas, Sweet natural gas or the liquefied petroleum of step-down, produce the copper anode plate of copper content＞99%.
The described combustion gas production of copper positive plate that utilizes in the copper fusion process, in order to strengthen thermal radiation, increases thermal convection, improves heat utilization efficiency, has adopted the burner hearth and the nozzle structure of Rational structure, and the combustion chamber reduces banking fire volume and furnace roof height and is adapted to the burner of combustion gas.
The described combustion gas production of copper positive plate that utilizes in the reduction treatment process in the copper fusion process, by after the supercharging combustion gas directly being injected copper liquid as reductive agent from multiple spot, utilizes C, the CO, the H that are produced after the combustion gas cracking
2Come the copper of reduction-oxidation in cuprous.
The described technological process of combustion gas production of copper positive plate in pyrometallurgical smelting copper of utilizing is, at first blister copper, inferior blister copper, composition brass, anode scrap are taken up in order of priority and drop in the smelting furnace, utilization sprays into coal gas or the Sweet natural gas or the liquefied petroleum gas (LPG) of decompression to burner hearth, and burner hearth heats up and evenly remains on more than 1425 ℃; Take off removing dross after waiting to be melt into liquid; Be blown into pressurized air and carry out oxidation; By pressure coal gas or Sweet natural gas or liquefied petroleum gas (LPG) multiple spot being injected copper liquid again reduces; To chemically examine qualified copper liquid at last and pour into model, obtain the copper anode plate of copper＞99%, Pb＜0.15%, S＜0.03%, As＜0.1% after the cooling, and the no bubble in plate surface, swing the limit, smooth bright and clean, fine and close, hangers is full, thickness and interior tissue are even, does not have stratified qualified copper anode plate.
Owing to adopted technical scheme as mentioned above, with coal gas example, the present invention has following superiority:
1) theoretical combustion temperature of coal gas can reach 1900 ℃, can satisfy the copper refining temperature requirement fully.
2) there are not a series of working cost problems such as buying, transportation, insulation, storage in coal gas.
3) the heat utilization efficiency proportion innage of coal gas is more than 12%, and need not atomize and directly spray into burning, and combustionvelocity is fast, and heat-transfer effect is good, and atomising unit need be set, and minimizing equipment drops into.
4) owing to CnHm content in the coal gas Chemical Composition only is below 1.25%, H
2Content is up to more than 51%, thereby the black smoke that produces is few, can reach 1 ° of following emission standard of lingemann blackness fully, and environment is not polluted.
5) coal gas reaches about 50% on the reduction utilization ratio, exceeds one times in heavy oil, can greatly reduce the coal gas usage quantity, reduces production costs.
6) use coal gas easy to operate, help improving the work situation of production scene, reduce hand labor intensity.
In sum, comprehensive utilization aspect from the energy, carry out the transition to liquid fuel from solid fuel, geseous fuel by now itself is exactly a kind of progress again, has not only made full use of fuel, reduce and consume, having reduced cost, also is that environmental issue is solved, and social development and scientific-technical progress are all had realistic meaning.
The drawing explanation
Fig. 1 is the process flow sheet that utilizes combustion gas production of copper positive plate:
Embodiment:
As shown in fig. 1: at first blister copper, composition brass, anode scrap etc. are dropped in the smelting furnace, melt certain temperature to be reached by in stove, spraying into combustion gas, be fused into copper liquid fully after, remove removing dross; Import the compressed-air actuated while on one side,, continue insulation, carry out oxidation Yi Bian import combustion gas; Enter reduction period again, in reduction period with combustion gas as reductive agent, import copper liquid by the pressure boost multiple spot, reduce, during this without any need for other auxiliary; Remove again and remove slag; Through after the assay was approved, injection model is cast as copper anode plate, enters to remove the oxidation copper sheet after cooling tank cools off; The oxidation copper sheet reclaims in the smelting furnace again; Another road slag advances blast furnace blister copper, composition brass, the anode scrap that black copper reclaims into beginning is again dropped in the melting, carries out working cycle once more; Finished product is through putting in storage after the assay was approved.
Claims (4)
1, a kind of processing method of utilizing combustion gas production of copper positive plate, the invention is characterized in: in the pyrometallurgy of copper melting is produced, smelting furnace carry out fusing, oxidation and cast in the copper fusion process intensification, be incubated and carry out all adopting in the reductive whole process coal gas, Sweet natural gas or liquefied petroleum gas (LPG) to make fuel, in smelting furnace, spray into coal gas, Sweet natural gas or the liquefied petroleum gas (LPG) of step-down, produce the copper anode plate of copper content＞99%.
2, the processing method of utilizing combustion gas production of copper positive plate as claimed in claim 1, in the copper fusion process, in order to strengthen thermal radiation, increase thermal convection, improve heat utilization efficiency, it is characterized in that: the described combustion gas production of copper positive plate that utilizes, adopted the burner hearth and the nozzle structure of Rational structure, reduce banking fire volume and furnace roof height and select to be adapted to the nozzle structure of combustion gas.
3, the processing method of utilizing combustion gas production of copper positive plate as claimed in claim 1, it is characterized in that: the described combustion gas production of copper positive plate that utilizes, in the reduction treatment process in the copper fusion process, by after the supercharging combustion gas directly being injected copper liquid as reductive agent from multiple spot, utilize C, the CO, the H that are produced after the combustion gas cracking
2Come the copper of reduction-oxidation in cuprous.
4, the processing method of utilizing combustion gas production of copper positive plate as claimed in claim 1, it is characterized in that: the described technological process of combustion gas production of copper positive plate in pyrometallurgical smelting copper of utilizing is, at first blister copper, inferior blister copper, composition brass, anode scrap are taken up in order of priority and drop in the smelting furnace, utilization sprays into coal gas, Sweet natural gas, the liquefied petroleum gas (LPG) of decompression to burner hearth, and burner hearth heats up and evenly remains on more than 1425 ℃; Take off removing dross after waiting to be melt into liquid; Be blown into pressurized air and carry out oxidation; By pressure coal gas, Sweet natural gas, liquefied petroleum gas (LPG) multiple spot being injected copper liquid again reduces; To chemically examine qualified copper liquid at last and pour into model, obtain the copper anode plate of copper＞99%, Pb＜0.15%, S＜0.03%, As＜0.1% after the cooling, and the no bubble in plate surface, swing the limit, smooth bright and clean, fine and close, hangers is full, thickness and interior tissue evenly, no stratified qualified copper anode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03157534XA CN1493715A (en) | 2003-09-24 | 2003-09-24 | Technological method of producing copper anode plate using fuel gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03157534XA CN1493715A (en) | 2003-09-24 | 2003-09-24 | Technological method of producing copper anode plate using fuel gas |
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| CN1493715A true CN1493715A (en) | 2004-05-05 |
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| CNA03157534XA Pending CN1493715A (en) | 2003-09-24 | 2003-09-24 | Technological method of producing copper anode plate using fuel gas |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234725A (en) * | 2010-04-24 | 2011-11-09 | 大冶有色金属集团控股有限公司 | Continuous production technology for miscellaneous copper recycling and positive plate casting |
| CN104962753A (en) * | 2015-06-16 | 2015-10-07 | 云南锡业股份有限公司 | Method for treating electrolytic residual pole plate by rotary anode furnace |
| CN105506304A (en) * | 2015-12-17 | 2016-04-20 | 天津华北集团铜业有限公司 | Process for preserving heat of copper liquid by adopting natural gas |
| CN105543497A (en) * | 2015-12-17 | 2016-05-04 | 天津华北集团铜业有限公司 | Process for smelting copper through oxygen-fuel combustion technique |
| CN106381403A (en) * | 2016-09-29 | 2017-02-08 | 大冶有色金生铜业有限公司 | Combined smelting method for crude copper |
| CN109609769A (en) * | 2018-12-28 | 2019-04-12 | 江西新金叶实业有限公司 | The technique of anode plate is directly produced using oxygen-enriched air smelting furnace |
| CN113355531A (en) * | 2021-05-28 | 2021-09-07 | 河南豫光金铅股份有限公司 | Production method for directly smelting brass raw material into copper anode plate |
-
2003
- 2003-09-24 CN CNA03157534XA patent/CN1493715A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234725A (en) * | 2010-04-24 | 2011-11-09 | 大冶有色金属集团控股有限公司 | Continuous production technology for miscellaneous copper recycling and positive plate casting |
| CN104962753A (en) * | 2015-06-16 | 2015-10-07 | 云南锡业股份有限公司 | Method for treating electrolytic residual pole plate by rotary anode furnace |
| CN105506304A (en) * | 2015-12-17 | 2016-04-20 | 天津华北集团铜业有限公司 | Process for preserving heat of copper liquid by adopting natural gas |
| CN105543497A (en) * | 2015-12-17 | 2016-05-04 | 天津华北集团铜业有限公司 | Process for smelting copper through oxygen-fuel combustion technique |
| CN106381403A (en) * | 2016-09-29 | 2017-02-08 | 大冶有色金生铜业有限公司 | Combined smelting method for crude copper |
| CN109609769A (en) * | 2018-12-28 | 2019-04-12 | 江西新金叶实业有限公司 | The technique of anode plate is directly produced using oxygen-enriched air smelting furnace |
| CN109609769B (en) * | 2018-12-28 | 2020-05-29 | 江西新金叶实业有限公司 | Process for directly producing anode plate by adopting oxygen-enriched smelting furnace |
| CN113355531A (en) * | 2021-05-28 | 2021-09-07 | 河南豫光金铅股份有限公司 | Production method for directly smelting brass raw material into copper anode plate |
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