2015 Henan electrolytic aluminum first technology exchange meeting was held

According to the bulk non-ferrous net reprint: Recently, the “Aluminum Aluminium Electrolytic Aluminum Production Impact Technology Conference” sponsored by the Non-ferrous Metal Industry Association of Henan Province was held in the conference room on the fifth floor of Jiaozuo Wanfang Aluminum Company.

More than 40 delegates from Zhongfu Industry, Wanji Holdings, Linfeng Aluminum, Hengkang Aluminum, Yugang Longquan, Yongdeng Aluminum, Caishin Aluminum, Tianyuan Aluminum and other representatives of Zhongda Metallurgical Design Institute attended the conference. .

At present, the electrolytic aluminum industry pays more and more attention to the stable operation of production and the improvement of the production environment. With the continuous decline in the grade of bauxite, there has been a growing demand for electrolytic aluminum companies to increase the quality of alumina. The meeting focused on the exchange and discussion on the influence of alumina quality on electrolytic aluminum production. Wang Shaopeng, Vice General Manager of Wanfang Aluminum, and Wang Yawei of Zhongda University Metallurgical Design Institute respectively gave reports on “Aluminum Quality Impacts on Aluminum Electrolysis Production” and “Aluminum Quality Impact on Electrolytic Aluminum Production”.

The meeting concluded that the quality of alumina not only affects the consumption of materials, energy consumption, but also affect the determination of the electrolytic aluminum production process indicators. Different alumina producers have slightly different physical properties and chemical compositions, and they have great differences in the impact on electrolytic aluminum production. The main influences are increased jamming, increased effect coefficients, sticky electrolytes, difficult separation of carbon slag, and carbon. Large amounts of slag and long anode packages frequently occur. The direct influence of various impurity levels on the cost of electrolytic aluminum is even more of a concern. Wang Shaopeng believes that a 0.1% increase in the sodium oxide content will increase the consumption of 5.3 kilograms of aluminum aluminum fluoride per ton and increase production costs by about 32 yuan.

The conference delegates not only discussed the impact of alumina quality on aluminum electrolysis production, but also shared their respective levels of production control and experience. In the last questioning session, how to control the anode effect coefficient caused everyone's heated discussion. Participants suggested:

1. The current alumina product quality standards are too broad. It is time to revise the alumina product quality standards. The electrolytic aluminum companies and aluminum oxide companies are called upon to jointly draft quality standards for alumina products, strictly control the quality of the alumina products, and promote the production of alumina that meets high quality standards for both physical and chemical compositions.

2. The meeting focused on the impact of alumina quality issues, with targeted and effective results, and strengthened the exchanges between the fraternal units.

In the afternoon of the same day, the meeting also arranged for participants to visit the production site of Jiaozuo Wanfang Aluminum Company. Liu Libin, executive vice president of the Provincial Non-ferrous Metals Industry Association, Li Ruxi, deputy secretary general, and Zhang Yucheng, deputy chief of the professional skills appraisal station attended the meeting.