Professor Dai Zizhong, who graduated from Tsinghua University in his early years, used the afterheat after retirement to come to Sichuan from Beijing. He is currently the expert group leader of Sichuan Yongxiang Polycrystalline Silicon Co., Ltd. and the scientific and technological leader of the 200-ton/year polycrystalline silicon test line.

In order to reverse the backward situation that China's solar photovoltaic power generation only accounts for 1% of the world, Tongwei Group and Sichuan Giant Star Group shoulder the industry responsibility and jointly build a world-class polysilicon production enterprise. At present, the improved Siemens process is the mainstream method to produce polysilicon. What Professor Dai has done is to adopt new technology and provide technical demonstration for the company to produce polysilicon on a large scale.

Professor Dai is responsible for the technological framework, technical control, patent technology involved and overall progress of the polysilicon test line. In order to promote the construction of the test line quickly and effectively, Professor Dai came to the construction site every day, and made painstaking efforts to check the progress and quality of the project day after day. Even in his hospital bed in Chengdu, he still cares and urges all aspects of the project very seriously.

Professor Dai's work style is rigorous, his operation ideas are clear, he demands high efficiency, pursues perfect workflow and achieves perfect work effect. In the course of many years' work, I have accumulated extensive knowledge and rich experience, and can conduct in-depth discussions on philosophy, electricity, chemical engineering theory, chemical engineering control and other technical and humanistic fields. What is worthy of young people's admiration and learning is that at the age of 70, his ability to track and learn the cutting-edge technology of polysilicon is still very strong. Under the leadership and guidance of Professor Dai, the younger generation of technicians in the experimental group are thriving and becoming the backbone of the new generation of polysilicon design and production.

Although Professor Dai is nearly old, he is still opinionated and sharp-edged. He has the energy of a young man. He comes to the company at 7: 30 every morning on time and never leaves his post during lunch break. Professor Dai will definitely come to Qingcheng Mountain, Emei Mountain and Wawu Mountain on weekends, and climb to the top of the mountain to think about the future of polysilicon.

Dai Zizhong: Head of Expert Group of Polycrystalline Silicon Project

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