【Major Chemical Equipment Innovations】The world’s largest polysilicon production facility with a capacity of 426 tons per year was successfully commissioned in its first attempt between 2019
Thread Content
The last edit to this post was made by Desert Fish on 2022-7-10 at 10:32. On December 8th, it was reported that the cold hydrogenation and distillation units of Xinjiang Dongfang Hope New Energy Co., Ltd.’s polysilicon production project – the world’s largest single-unit polysilicon production facility with an annual capacity of 120,000 tons (with a first-phase capacity of 30,000 tons) – had completed all necessary tests and trials, and on December 1st, they successfully produced high-quality trichlorosilane. The conversion rate of trichlorosilane in the cold hydrogenation unit exceeded 20%, while the purity of trichlorosilane after distillation in the distillation unit reached 99.9999%. This marks the completion of the entire production process for Xinjiang Dongfang Hope’s 120,000-ton polysilicon production project (phase 1: 30,000 tons); the project started operations successfully after just one trial run, entering its full-scale production phase.
It’s tough in the scorching summer heat! Keep up with heat prevention and cooling! Clarify the key tasks! Safety analysis must not be neglected! ----------------------------------------------The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement of the petrochemical sector. 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. We invite everyone to share their insights and discuss these topics together; let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ 【Major Chemical Equipment in a Major Country】Series Summary Post – Being Updated https://bbs.hcbbs.com/thread-3366481-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=3336792&extra=&mobile=2&shareuid=715815
In 2021, Lanshi Heavy Equipment won a contract for the 60,000 tons per year polycrystalline silicon (Phase III) project from Xinjiang Dongfang Hope New Energy Co., Ltd. The company focuses on customer needs and makes every effort to advance the manufacturing of its product lines. The products of this project include 4 fluidized bed reactors and 10 towers, which were manufactured respectively by Lansi Heavy Equipment Refining & Chemical Co., Ltd. and the Mobile Plant Division. Among them, the fluidized bed reactor is made of N08810 nickel-based alloy. The fluidized bed reactor was manufactured on-site; since its commissioning, the refining company has established a dedicated team to organize production in a precise and efficient manner. To address issues such as the high difficulty in welding nickel-based dissimilar steel products, a segmented manufacturing approach was adopted, with welding carried out on the upper part while cooling the lower part to control the interlayer temperature, thereby effectively preventing the formation of thermal cracks ； By improving the welding machine to increase the welding area and using two welding machines simultaneously, product quality and progress were ensured. At present, the two fluidized bed reactors have completed their final welding, and are about to enter the final stages such as heat treatment ； The other 2 units are being manufactured in sections.
【Major Chemical Equipment Innovations】363—First batch of N08810 corrosion-resistant alloy forgings produced using self-made steel ingots https://bbs.hcbbs.com/thread-3362011-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
【Major Industrial Equipment in the Chemical Engineering Sector】077 – Domestic N08810 nickel-based alloy heat exchangers https://bbs.hcbbs.com/thread-3319319-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
【Major Chemical Equipment in China】162-Taigang Stainless N08810 nickel-based alloy thick steel plates as a substitute for imported products https://bbs.hcbbs.com/thread-3333850-1-1.html (Source: Huahai Chuanliu – Haichuan Network)