【Major Chemical Equipment】Fluidized Bed Reactors for Large-Scale Polysilicon Projects from 393 to 2018
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This post was last edited by Desert Fish on 2022-6-26 at 16:13: https://bbs.hcbbs.com/data/attachment/myqr/975/3364975.png https://bbs.hcbbs.com/source/plugin/nimba_threadqr/logo.jpg. You can scan the codes to access this topic. Comply with the Work Safety Law! Take responsibility as the primary person in charge! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, with many new processes, products, and equipment emerging. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement of the petrochemical industry. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. Everyone is welcome to share, discuss, and exchange ideas. Let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ On December 26, 2018, the 4 fluidized bed reactors for the polysilicon production project with an annual capacity of 120,000 tons, manufactured by Xinjiang Lanshi Company, were successively completed and shipped. During the production of this batch of reactors, Xinjiang Lanshi Company adhered to the principle that \"quality equals progress\", optimizing the manufacturing processes and adjusting the work procedures ； Specialists from the quality control department monitored and tracked the process throughout, and as a result, the batch of products was delivered ahead of schedule by half a month, winning the approval of the client. This product is the fluidized bed reactor for Xinjiang Lanshi’s first polysilicon production project; it fills the gap in Lanshi’s capabilities in manufacturing reactors for the new energy polysilicon industry and provides experience for undertaking similar projects in the future.
On May 19, all 6 fluidized bed reactors for the annual production of 70,000 tons of high-purity silicon-based materials project (Phase A) of Xinjiang Datian New Energy Co., Ltd., which was independently designed by Lansi Heavy Equipment and manufactured by its subsidiary Xinjiang Lansi, were shipped out. These reactors represent the core equipment for another polysilicon project undertaken by Xinjiang Lanshi, following its successful completion last year of the manufacturing of 4 fluidized-bed reactors for Xinjiang Dongfang Hope New Energy Co., Ltd.’s project to produce 120,000 tons of polysilicon per year.
The main body of the reactor is made of austenitic stainless steel 347H; it has a diameter of 3200 mm, a wall thickness of 60 mm, and a length of 23282 mm. The manufacturing challenges mainly lie in the forming of thick-walled stainless steel heads, the measurement and precision control of the installation dimensions of eccentricly inserted pipes, the fabrication of distributors as well as their assembly with the cylinder, and the control of welding deformation in thick-walled stainless steel products. To address the manufacturing challenges, the technical and production staff at Xinjiang Lanshi, drawing on previous manufacturing experience, adjusted the process sequence and optimized the design of the tooling. By strictly controlling the concentricity and levelness of the distributor structure, they were able to ensure both the progress and quality of the production, thus completing the manufacturing task successfully. The successful completion of this batch of reactors has once again strengthened Xinjiang Lanshi’s technical capabilities in this field, enhanced its competitiveness in the manufacturing of polysilicon core products, and laid a foundation for taking on and producing similar products in the future.
It is a good strategy for Lanshi Heavy Equipment to focus on Xinjiang
【Major Chemical Equipment in China】Self-designed 40,000-cubic-meter low-temperature liquid ammonia storage tank in Jinshan, Shanghai, from 394 to 2021 https://bbs.hcbbs.com/thread-3365012-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Forum Website)