On November 20, 2018, it was reported that DEAR air separation (hereinafter referred to as "DEAR") and Asian Silicon Industry (Qinghai) Co., Ltd. (hereinafter referred to as "Asian Silicon") A set of KDN-3000/300Y air separation nitrogen generation unit signed successfully starts production.
After dozens of days of stable operation, all indicators remain as follows:
Nitrogen yield ≥ 360Nm 3/h purity <1ppmO2
Product pressure> 0.8Mpa air compressor exhaust pressure: 0.72Mpa
Liquid nitrogen output> 300 Nm3/h purity <1ppmO2
Comprehensive energy consumption <0.22kwh/Nm3
Silicon is a joint venture established by Asia Silicon Co., Ltd. (BVI) and Xining Economic and Technological Development Zone Investment Holding Group Co., Ltd. The annual sales revenue of 2017 is more than 2 billion yuan, and the enterprise has the annual production capacity of 15,000 tons of semiconductor polycrystalline silicon materials, 200 MW high power single glass and double glass photovoltaic modules, it is not only the world's top 10 and the country's third leading polycrystalline silicon production enterprise, but also the core competitiveness of production equipment and technological level, quality of polycrystalline silicon products and production cost in the world, and it is in the leading position in the same industry all over the world, becoming the representative of advanced polycrystalline silicon manufacturing industry in our country. The successful operation of this equipment has added bricks and tiles for the development of the polysilicon of the silicon, and has laid a solid foundation for the polysilicon industry of DEAR air separation.
This set of equipment adopts the advanced process with the characteristics of single tower and backflow expansion pressurized air, which can not only maintain stable high purity nitrogen (liquid nitrogen), but also reduce the discharge pressure of the air compressor, and then reduce the comprehensive energy consumption of the whole unit. The comprehensive energy consumption of this set of equipment is more than 10% lower than that of domestic equivalent equipment.
The advanced technological process is adopted by DEAR air separation to strictly control the production quality of the equipment and the installation process of the equipment, so that the project can be completed on schedule, the project can be started successfully and the product can be produced smoothly. All the indexes such as production and purity reach or exceed the design index, and the working condition is stable, which has won the recognition and praise of users.
This set of equipment is the model project of producing fine air separation pursued by DEAR air separation company, and it is DEAR air separation's unchangeable commitment to deliver fine air separation equipment to users, dier air separation company has fulfilled its mission and belief of creating first-class and high-quality air separation equipment with its product quality.
