In the world industry, more than 60 % of the "waste lead" recycling uses "Hunan Gaozhao"!

On July 13, the campus of Xiangtan University, which opened the summer vacation model, was obviously quiet. The school's "Regenerative Leading Technology Innovation Team" laboratory is still lively as ever.

This summer, Zhang Junfeng, the director of the Hunan Provincial Lithium Lithium Battery Resources Efficient Circulation Engineering Technology Research Center and the dean of the School of Environment and Resources of Xiangtan University, led the team to "pursue the victory."

Because in late June, a 50,000 -ton/year full -chain demonstration line with the third -generation team technology of the team, which lasted for 2 years and finally passed the acceptance. New achievements have once again refreshing the world's leading level, which makes the team more motivated.

Although this production line, although there is still a demonstration stage, it can be "not small" -it allows China's waste lead battery resources to recycling the industry, completely abandoning the past melting link, so as to be discharged from waste water and exhaust gas throughout the process. Once the market is available, it will help waste waste. The lead battery industry is greener and safer, forming a loud business card belonging to "China Intelligent Manufacturing".

This is the "new answer sheet" that the team lasted for 14 years.

In the field of energy storage batteries, lead batteries are widely used in the fields of car startup, mine and military equipment due to their heat -resistant heat resistance, good safety, and full circulation of resources. They are precious energy storage resources.

However, although it is "treasure", there are also "troubles". Once, the recycling industry of the lead battery resources has long adopted the process technology of "manual dismantling -high temperature melting", which caused the industry's development to fall into the predicament of heavy pollution and low resource recovery rate. However, due to the large number of lead, many specifications, various materials, and various materials in my country, and the high degree of mixed batteries, and the difficulty of recycling resources, the technology equipment developed by foreign countries has reached the country, and it is easy to appear the dilemma of "South Orange and North".

In 2008, Zhang Junfeng, who had just finished his doctorate in chemical engineering and technology at Xiangtan University, was like a "newborn calf". The young man who dared to think about it from a young age pulled his classmates and wanted to change it all.

The determination is very big, and the difficulties are not small. At that time, the domestic research in this field was not much experienced. It was likely to follow the foreign practices to "east -effect". Fortunately, Hunan Jiangye Electromechanical Technology Co., Ltd. is willing to form a "regenerative lead technology innovation team" with it to break through the difficulties.

This break is 14 spring and autumn. Until now, Zhang Junfeng still clearly remembers that the team will continue to be in the laboratory and library every night, or to study books and buried in various research data. Everyone once scored red ears and red ears, and they were happy to make breakthroughs ...

Things are artificial, and surprises appear.

In 2012, the technology and equipment they developed realized the "mechanized crushing sorting -waste lead cream standard high temperature melting", which "liberated" more artificially to ensure the safety of more practitioners.

In 2018, they obtained a major breakthrough. Through technical updates, the melting point was reduced from 1300 degrees Celsius to 900 degrees Celsius, so that lead dust could not be generated, and naturally there was no risk of emissions -this move greatly reduced the "blood lead hazard". A foreign company once introduced 8 technology equipment production lines in one breath. As of now, after the export of equipment developed by the team, it has handled more than 2 million tons of waste lead batteries after the export of equipment exports. In addition, the number of domestic waste -storage batteries has been treated each year, which has accounted for more than 60%in the world ...

Iteratory innovation, step by step, now production technology has come to the "3.0 era".

The process process is reduced from the 6 ring to the 3 ring; the important by -product ammonium sulfate formed by the recycling of waste lead cream can help agricultural production; the information service center enables the team to provide technical services such as fault diagnosis of global users in Xiangtan; the industrial Internet and Industrial robots can greatly save artificial costs ... The "Waste Battery Resources Revolution Industry Evolution Road Map" hanging on the laboratory wall is silent to witness the "footsteps" of the team's long correction journey.

At present, this set of self -developed world -leading technology has been selected as key technologies of the "National Industrial Resources Comprehensive Use Advanced Application Technology and Equipment Catalog".

In the summer vacation, their tactics stopped. This "small group" formed by the "3 stinky skin craftsmen" barefoot and empty fists that year has now grown to a "big family" with more than 70 people, and is working together to challenge the fourth -generation technology.

"Comprehensively support the overall improvement of the industry's clean production level, implement the" dual carbon "target action, and promote the development of ecological civilization is our unchanged goal." Zhang Junfeng said that he hopes to create a better lead circulating system to the whole of the entire The industry has made greater contributions. (Zhou Jian, a reporter of Hunan Daily all -media reporter Wang Chengqi)

[Edit: Liu Ye]

[Source: Hunan Daily · New Hunan Client]

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