Ingredient optimization plays a pivotal role in the copper industry,for which it is closely related to the concentrate utilization rate,stability of furnace conditions,and the quality of copper production.To acquire a...Ingredient optimization plays a pivotal role in the copper industry,for which it is closely related to the concentrate utilization rate,stability of furnace conditions,and the quality of copper production.To acquire a practical ingredient plan,which should exhibit long duration time with sufficient utilization and feeding stability for real applications,an ingredient plan optimization model is proposed in this study to effectively guarantee continuous production and stable furnace conditions.To address the complex challenges posed by this integer programming model,including multiple coupling feeding stages,intricate constraints,and significant non-linearity,a multi-stage differential-multifactorial evolution algorithm is developed.In the proposed algorithm,the differential evolutionary(DE)algorithm is improved in three aspects to efficiently tackle challenges when optimizing the proposed model.First,unlike traditional time-consuming serial approaches,the multifactorial evolutionary algorithm is utilized to optimize multiple complex models contained in the population of evolutionary algorithm caused by the feeding stability in a parallel manner.Second,a repair algorithm is employed to adjust infeasible ingredient lists in a timely manner.In addition,a local search strategy taking feedback from the current optima and considering the different positions of global optimum is developed to avoiding premature convergence of the differential evolutionary algorithm.Finally,the simulation experiments considering different planning horizons using real data from the copper industry in China are conducted,which demonstrates the superiority of the proposed method on feeding duration and stability compared with other commonly deployed approaches.It is practically helpful for reducing material cost as well as increasing production profit for the copper industry.展开更多
The 6 micron copper foil is widely recognized by the industry as high-standard ultra-thin copper foil.Shenyang Lianli is currently the only company in Northeast China that owns this technology.Meanwhile,the new materi...The 6 micron copper foil is widely recognized by the industry as high-standard ultra-thin copper foil.Shenyang Lianli is currently the only company in Northeast China that owns this technology.Meanwhile,the new material of 6N high-purity copper(copper content99.9999%)has also been展开更多
For the past few years,Yingtan has been making efforts in deepening supply-side reform.With quality improvement and benefit increase as its core,with technology progress and collaborative innovation as its driving for...For the past few years,Yingtan has been making efforts in deepening supply-side reform.With quality improvement and benefit increase as its core,with technology progress and collaborative innovation as its driving force,Yingtan has been actively improving an“eight in one”copper industry covering copper raw material,copper smelting,copper processing,copper trading,copper R&D,展开更多
In recent years,with China’s accelerated implementation of the'going out'strategy and promotion of the'Belt and Road'construction and development,Chinese enterprises have grown rapidly and achieved br...In recent years,with China’s accelerated implementation of the'going out'strategy and promotion of the'Belt and Road'construction and development,Chinese enterprises have grown rapidly and achieved breakthroughs in terms of overseas investment in copper industries and overseas development of copper resources that are in short supply in China.展开更多
Copper smelting is a significant source of SO2 emission. It is important to quantify SO2 emissions from combustion sources for regulatory and control purposes in relation to air quality. The characteristics of SO2 emi...Copper smelting is a significant source of SO2 emission. It is important to quantify SO2 emissions from combustion sources for regulatory and control purposes in relation to air quality. The characteristics of SO2 emissions from copper smelting industry in Yurman Province, China, were examined. Analysis based on the present situation, material balance and measuring method were used to confirm SO2 emission factors of copper smelting industry. Results show that SO2 emission factors for Isa system, side blown-continuous converting system （SB-CC）, blast furnace-continuous converting systems （B-CC） and blast furnace-converter blowing （B-C） are 11.69-18.64, 62.44--101.4, 19.43-37.88 and 45.48-81.03 kg/t（blister copper）, respectively. The comprehensive emission factor based on all smelting plants is found to be in the range of 23-39.99 kg-SO2/t（blister copper） for Yunnan Province, China. The results are compared with those for discharge coefficients of industrial pollutants in the First National General Survey of Pollution Sources and the emission factor of the total amount of major pollutants. It is observed that there are some differences among emission factors.展开更多
1.Basic Situation of Copper Rod Production in the First Quarter of 2017In the first quarter of 2017,Antaike researched on 18 domestic copper rod companies and 24production lines involving a total capacity of5.235 mill...1.Basic Situation of Copper Rod Production in the First Quarter of 2017In the first quarter of 2017,Antaike researched on 18 domestic copper rod companies and 24production lines involving a total capacity of5.235 million tons,accounting for around half of national total in-production capacity and over 60%of national total capacity of展开更多
On the June 5,the 2018 Annual Conference of China Copper Processing Industry was convened in Huangshi,joined by representatives of 232 copper processing companies and more than 20 universities and research institutes ...On the June 5,the 2018 Annual Conference of China Copper Processing Industry was convened in Huangshi,joined by representatives of 232 copper processing companies and more than 20 universities and research institutes from across the country to discuss the high quality development plan of the copper industry.The conference。展开更多
What is the profound impact of the fastgrowing lithium foil market on the copper foil industry and market?How long can the prosperous lithium foil market last?When will the imbalanced supply and demand of lithium foil...What is the profound impact of the fastgrowing lithium foil market on the copper foil industry and market?How long can the prosperous lithium foil market last?When will the imbalanced supply and demand of lithium foil be solved?When will the acute supply shortage of standard foil be relieved?How展开更多
As a metal,copper comes in third only to iron and aluminum in terms of importance in national economy and as a non-ferrous metal,it ranks second in terms of consumption.The copper industry is a pillar of the non-ferro...As a metal,copper comes in third only to iron and aluminum in terms of importance in national economy and as a non-ferrous metal,it ranks second in terms of consumption.The copper industry is a pillar of the non-ferrous metal industry in China.In 2016,the copper industry’s assets accounted for23%of the national non-ferrous industry’s total,and its income accounted for 35%.China also holds展开更多
In China,the upstream industries of copper processing are copper ore dressing and copper smelting industries.But China’s copper industry has seen unbalanced development between the three steps:copper ore dressing,cop...In China,the upstream industries of copper processing are copper ore dressing and copper smelting industries.But China’s copper industry has seen unbalanced development between the three steps:copper ore dressing,copper smelting and processing.The industrialpattern where processing capacity is greater than smelting capacity,and smelting capacity展开更多
This month we take a look at, among other things, venture capital and the copper industry - both of which hinge on a somewhat hackneyed theme that＇s nonetheless true： China＇s growing fast, and the private sect...This month we take a look at, among other things, venture capital and the copper industry - both of which hinge on a somewhat hackneyed theme that＇s nonetheless true： China＇s growing fast, and the private sector is ramping up to meet its demand. Rapid development often outpaces regulatory safeguards, and the cost is in some cases social but more often than not, environmental. In terms of the social cost, this is something that multinationals are increasingly attempting to offset with corporate social responsibility programs - a movement that writer Jonathan Haagen examines this month.展开更多
基金supported by the National Natural Science Foundation(61833003,62125302,U1908218).
文摘Ingredient optimization plays a pivotal role in the copper industry,for which it is closely related to the concentrate utilization rate,stability of furnace conditions,and the quality of copper production.To acquire a practical ingredient plan,which should exhibit long duration time with sufficient utilization and feeding stability for real applications,an ingredient plan optimization model is proposed in this study to effectively guarantee continuous production and stable furnace conditions.To address the complex challenges posed by this integer programming model,including multiple coupling feeding stages,intricate constraints,and significant non-linearity,a multi-stage differential-multifactorial evolution algorithm is developed.In the proposed algorithm,the differential evolutionary(DE)algorithm is improved in three aspects to efficiently tackle challenges when optimizing the proposed model.First,unlike traditional time-consuming serial approaches,the multifactorial evolutionary algorithm is utilized to optimize multiple complex models contained in the population of evolutionary algorithm caused by the feeding stability in a parallel manner.Second,a repair algorithm is employed to adjust infeasible ingredient lists in a timely manner.In addition,a local search strategy taking feedback from the current optima and considering the different positions of global optimum is developed to avoiding premature convergence of the differential evolutionary algorithm.Finally,the simulation experiments considering different planning horizons using real data from the copper industry in China are conducted,which demonstrates the superiority of the proposed method on feeding duration and stability compared with other commonly deployed approaches.It is practically helpful for reducing material cost as well as increasing production profit for the copper industry.
文摘The 6 micron copper foil is widely recognized by the industry as high-standard ultra-thin copper foil.Shenyang Lianli is currently the only company in Northeast China that owns this technology.Meanwhile,the new material of 6N high-purity copper(copper content99.9999%)has also been
文摘For the past few years,Yingtan has been making efforts in deepening supply-side reform.With quality improvement and benefit increase as its core,with technology progress and collaborative innovation as its driving force,Yingtan has been actively improving an“eight in one”copper industry covering copper raw material,copper smelting,copper processing,copper trading,copper R&D,
文摘In recent years,with China’s accelerated implementation of the'going out'strategy and promotion of the'Belt and Road'construction and development,Chinese enterprises have grown rapidly and achieved breakthroughs in terms of overseas investment in copper industries and overseas development of copper resources that are in short supply in China.
基金Projects(KKK0201022137,KKK0201122183) supported by the Special Research Foundation of Yunnan Provincial Environmental Protection Bureau,China
文摘Copper smelting is a significant source of SO2 emission. It is important to quantify SO2 emissions from combustion sources for regulatory and control purposes in relation to air quality. The characteristics of SO2 emissions from copper smelting industry in Yurman Province, China, were examined. Analysis based on the present situation, material balance and measuring method were used to confirm SO2 emission factors of copper smelting industry. Results show that SO2 emission factors for Isa system, side blown-continuous converting system （SB-CC）, blast furnace-continuous converting systems （B-CC） and blast furnace-converter blowing （B-C） are 11.69-18.64, 62.44--101.4, 19.43-37.88 and 45.48-81.03 kg/t（blister copper）, respectively. The comprehensive emission factor based on all smelting plants is found to be in the range of 23-39.99 kg-SO2/t（blister copper） for Yunnan Province, China. The results are compared with those for discharge coefficients of industrial pollutants in the First National General Survey of Pollution Sources and the emission factor of the total amount of major pollutants. It is observed that there are some differences among emission factors.
文摘1.Basic Situation of Copper Rod Production in the First Quarter of 2017In the first quarter of 2017,Antaike researched on 18 domestic copper rod companies and 24production lines involving a total capacity of5.235 million tons,accounting for around half of national total in-production capacity and over 60%of national total capacity of
文摘On the June 5,the 2018 Annual Conference of China Copper Processing Industry was convened in Huangshi,joined by representatives of 232 copper processing companies and more than 20 universities and research institutes from across the country to discuss the high quality development plan of the copper industry.The conference。
文摘What is the profound impact of the fastgrowing lithium foil market on the copper foil industry and market?How long can the prosperous lithium foil market last?When will the imbalanced supply and demand of lithium foil be solved?When will the acute supply shortage of standard foil be relieved?How
文摘As a metal,copper comes in third only to iron and aluminum in terms of importance in national economy and as a non-ferrous metal,it ranks second in terms of consumption.The copper industry is a pillar of the non-ferrous metal industry in China.In 2016,the copper industry’s assets accounted for23%of the national non-ferrous industry’s total,and its income accounted for 35%.China also holds
文摘In China,the upstream industries of copper processing are copper ore dressing and copper smelting industries.But China’s copper industry has seen unbalanced development between the three steps:copper ore dressing,copper smelting and processing.The industrialpattern where processing capacity is greater than smelting capacity,and smelting capacity
文摘This month we take a look at, among other things, venture capital and the copper industry - both of which hinge on a somewhat hackneyed theme that＇s nonetheless true： China＇s growing fast, and the private sector is ramping up to meet its demand. Rapid development often outpaces regulatory safeguards, and the cost is in some cases social but more often than not, environmental. In terms of the social cost, this is something that multinationals are increasingly attempting to offset with corporate social responsibility programs - a movement that writer Jonathan Haagen examines this month.
