Qinghai to Achieve New Breakthrough of Polysilicon Upgrade

In Qinghai, there are many polysilicon and silicon caibide manufacturners. In the new normal, high and new technology industry in Qinghai has taken green and efficient development road according to the circular economy policy decisions made by the provincial party committee and the provincial government. They vigorously develop the economy and regard technical reform and innovation as the effective ways to promote product upgrading and improve core competitive ability of enterprises. Through unremitting efforts, polysilicon upgrading has achieved new breakthrough, realizing the economic growth, resource conservation and ecological environmental protection.

We have learned, at present, the company has successfully completed the energy-saving reform and innovation of fluidized bed low temperature hydrogenation technology, distillation process, large reduction furnace and the third generation of reducing furnace waste heat utilization technology, and put into production operations. The application of new technology makes the company material consumptions, energy consumption index reaching the industry leading level, which can help reduce carbon dioxide emissions about 300000 tons every year, 8640 tons of sulfur dioxide emissions, nox emissions about 4420 tons, natural gas consumption reduced by 50% and production power consumption reduced by 40%.

To achieve optimization of resource utilization, minimize the environmental pollution, and maximize the economic benefits, the company continuously absorb and draw lessons from the domestic and foreign about advanced energy-saving production technologies and processes, and in the energy saving transformation of fluidized bed low temperature hydrogenation technology, they choose and buy equipments by independent design and development, finishing the 2x annual output of 120000 tons of chemical hydrogen silicone fluid bed cold hydrogenated technology reform, and making it become largest monomer equipment at home and abroad, which can meet the demand of annual output of 12000 tons of polysilicon.

Aimed at the difficulty in the distillation process reform, scientific research and technical personnel further optimize the technological process through the adoption of energy efficient simulation analysis and calculation, which can help save energy more than 45% than conventional purification process, and generate economic benefits more than 58.8 million RMB.

A series of successful implementation of energy saving measures, not only greatly reduce the production cost of enterprises, but also vigorously promote the quality and efficiency. At the same time, as an important raw material of photovoltaic industry, polysilicon technology research and development and upgrade, provide continuous power for promoting technological progress and innovation in the field of photovoltaic manufacturing, and have played a strong demonstration effect for the development of photovoltaic manufacturing industry.