The world's lead smelting industry has a new miracle. China Henan Yuguang Gold & Lead Group Co., Ltd. takes one step in the new lead process. The energy consumption is 60% of the sintering-blast furnace, oxygen bottom blowing-blast furnace smelting process, and the chimney increases the tail gas absorption device so that the exhaust gas SO2 content is less than 100mg/m3 in China. Lead smelting industry is playing a leading role.
This is Yuguang's first industry-wide introduction of the oxygen-enriched bottom-blowing oxidation-blast furnace reduction lead smelting process in industrialization in 2002. Yu Anguang, chairman of gold and lead Yang Anguo, said: “20A10 is the year of the decisive battle to achieve the “Eleventh Five-Year†energy saving and emission reduction targets. The national unit GDP energy consumption should be reduced by at least 5.62%. From the current situation, there are certain difficulties. During the 12th Five-Year Plan period, the task of energy saving and emission reduction will be even more arduous. As China's largest lead smelting production and processing enterprise, Yuguang has the responsibility to further advance the technological upgrading of the lead smelting industry."
Yuguang one-step smelting lead method is also known as the direct lead slag lead reduction process method for liquid high lead slag. This process has three advantages: short process, low carbonization, and clean and continuous lead smelting, and has obvious advantages in energy saving and consumption reduction. In the "12th Five-Year Plan" draft of the non-ferrous industry at the stage of collecting opinions, it has included its technical breakthroughs and industrialization promotion. Yu Guang has gone ahead of the plan and completed the industry's "12th Five-Year Plan" five years ahead of schedule. Draft requirements.
At present, the advanced oxygen-enriched bottom blowing oxidation-blast furnace reduction lead smelting process requires that the liquid slag be cooled and ingot be ingot, and then placed in a blast furnace for reduction and smelting. The liquid lead slag directly reduces lead smelting, eliminating the three intermediate steps of cooling, ingot casting, and remelting. The natural gas and cheap coal particles are used for the reduction reaction, which effectively reduces the processing cost, reduces the CO2 emission, and actively responds to the state's proposal. The development strategy of building a "resource-saving, environment-friendly society". At the same time, it also bid farewell to the history of coke as the main energy source for the lead smelting industry.
At the same time, the level of automation of process equipment has increased dramatically. Standing in the main control room of Yuguang's liquid lead slag direct reduction lead smelting project, faced with more than 30 LCD screens embedded in the wall, the old employees who are engaged in 25 years of lead smelting production are proud of their success: “Liquid-high lead The slag is directly reduced to lead smelting, the process is short and the operation is confined, and there are 3,000 data control points. It is not only a good environment to get to work here, but it really feels the superiority of automated operations."
After Yuguang proposed the idea of ​​direct reduction of liquid lead slag in 2003, after 7 years of scientific experiments, he independently developed a new process for the direct reduction of lead in liquid lead slag at the end of 2007. In 2008, Academician Qiu Dingfan from the Chinese Academy of Engineering was The team leader’s expert team concluded that the process “is internationally leading, first-class in the country, practical and energy-saving,†and calls for “realizing industrialization as soon as possibleâ€. Today, the aspirations of academicians and experts have finally come true.
In addition to its core process of directly reducing lead in liquid lead slag that was independently developed, Yuguang also implemented three major innovations in the new project. The first is to invest nearly 100 million yuan in integrated waste water recycling and reuse projects, with a reuse rate of more than 80%, except that the consumption within the system basically reaches no waste water discharge; second, the refining workshop introduces new equipment from foreign countries, lead anode die casting machines, and cathode anodes. With automatic rowing machines, the degree of automation has been improved, the labor intensity of employees has been greatly reduced, and combined with the implementation of technological transformation of new equipment, the unit power consumption has reached the lowest level in the country; and thirdly, the increase in the recovery rate of the original equipment, the oxidation* recovery rate, reached 98%. Acid treatment tail gas treatment, so that there is no * * chemical emissions; Fourth, with foreign companies in research and development of microbial sewage acid treatment process, the "hazardous" components all the recycling; five is ready to use three steam boiler steam for power generation.
It is reported that after the liquid lead slag direct reduction lead smelting project was completed and put into operation, Yuguang Gold & Lead has officially announced a few days ago that it has completely shut down the smelter lead smelting system, which is the first in the domestic industry.
This is Yuguang's first industry-wide introduction of the oxygen-enriched bottom-blowing oxidation-blast furnace reduction lead smelting process in industrialization in 2002. Yu Anguang, chairman of gold and lead Yang Anguo, said: “20A10 is the year of the decisive battle to achieve the “Eleventh Five-Year†energy saving and emission reduction targets. The national unit GDP energy consumption should be reduced by at least 5.62%. From the current situation, there are certain difficulties. During the 12th Five-Year Plan period, the task of energy saving and emission reduction will be even more arduous. As China's largest lead smelting production and processing enterprise, Yuguang has the responsibility to further advance the technological upgrading of the lead smelting industry."
Yuguang one-step smelting lead method is also known as the direct lead slag lead reduction process method for liquid high lead slag. This process has three advantages: short process, low carbonization, and clean and continuous lead smelting, and has obvious advantages in energy saving and consumption reduction. In the "12th Five-Year Plan" draft of the non-ferrous industry at the stage of collecting opinions, it has included its technical breakthroughs and industrialization promotion. Yu Guang has gone ahead of the plan and completed the industry's "12th Five-Year Plan" five years ahead of schedule. Draft requirements.
At present, the advanced oxygen-enriched bottom blowing oxidation-blast furnace reduction lead smelting process requires that the liquid slag be cooled and ingot be ingot, and then placed in a blast furnace for reduction and smelting. The liquid lead slag directly reduces lead smelting, eliminating the three intermediate steps of cooling, ingot casting, and remelting. The natural gas and cheap coal particles are used for the reduction reaction, which effectively reduces the processing cost, reduces the CO2 emission, and actively responds to the state's proposal. The development strategy of building a "resource-saving, environment-friendly society". At the same time, it also bid farewell to the history of coke as the main energy source for the lead smelting industry.
At the same time, the level of automation of process equipment has increased dramatically. Standing in the main control room of Yuguang's liquid lead slag direct reduction lead smelting project, faced with more than 30 LCD screens embedded in the wall, the old employees who are engaged in 25 years of lead smelting production are proud of their success: “Liquid-high lead The slag is directly reduced to lead smelting, the process is short and the operation is confined, and there are 3,000 data control points. It is not only a good environment to get to work here, but it really feels the superiority of automated operations."
After Yuguang proposed the idea of ​​direct reduction of liquid lead slag in 2003, after 7 years of scientific experiments, he independently developed a new process for the direct reduction of lead in liquid lead slag at the end of 2007. In 2008, Academician Qiu Dingfan from the Chinese Academy of Engineering was The team leader’s expert team concluded that the process “is internationally leading, first-class in the country, practical and energy-saving,†and calls for “realizing industrialization as soon as possibleâ€. Today, the aspirations of academicians and experts have finally come true.
In addition to its core process of directly reducing lead in liquid lead slag that was independently developed, Yuguang also implemented three major innovations in the new project. The first is to invest nearly 100 million yuan in integrated waste water recycling and reuse projects, with a reuse rate of more than 80%, except that the consumption within the system basically reaches no waste water discharge; second, the refining workshop introduces new equipment from foreign countries, lead anode die casting machines, and cathode anodes. With automatic rowing machines, the degree of automation has been improved, the labor intensity of employees has been greatly reduced, and combined with the implementation of technological transformation of new equipment, the unit power consumption has reached the lowest level in the country; and thirdly, the increase in the recovery rate of the original equipment, the oxidation* recovery rate, reached 98%. Acid treatment tail gas treatment, so that there is no * * chemical emissions; Fourth, with foreign companies in research and development of microbial sewage acid treatment process, the "hazardous" components all the recycling; five is ready to use three steam boiler steam for power generation.
It is reported that after the liquid lead slag direct reduction lead smelting project was completed and put into operation, Yuguang Gold & Lead has officially announced a few days ago that it has completely shut down the smelter lead smelting system, which is the first in the domestic industry.
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