【Major Equipment in the Chemical Equipment Industry】274 – The first polymerization reactor for a 35,000-ton/year special nitrile rubber production facility, where a mirror-like surface finish is required internally
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This post was last edited by Desert Fish on 2022-5-24 11:36: Red May for chemical workers! Reply reward! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. There has also been significant progress in China’s chemical processing equipment, 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! ===================== Polymerization reactors are core equipment in fine chemical industry. The product has a complex structure, containing numerous loop tube components as well as a mixing device; strict requirements are placed on the coaxiality and levelness of the equipment. Due to the properties of the medium, technical requirements dictate that all surfaces inside the equipment that come into contact with the material must be polished to achieve a mirror-like surface finish (Ra≤0.04μm), which makes manufacturing quite challenging. To meet customer requirements and ensure on-time delivery, the refining and chemical company established special task forces and Party member vanguard teams, which conducted numerous discussions on the challenges related to the equipment and the key technical aspects, and developed detailed polishing and manufacturing plans. The technology, inspection, and production departments, along with various manufacturing workshops, strengthen communication and close collaboration to overcome challenges, working in shifts on a daily basis without interruption. With the help of advanced equipment and instruments, it is ensured that the surface roughness, coaxiality, and levelness meet the required standards.
After 3 months of relentless effort and hard work, the first of the 10 polymerization reactors for this project was delivered on schedule, with the remaining 9 entering the final stage of production. The 35,000 tons per year special nitrile rubber production facility is the only key project approved by CNPC in 2021, and it has been designated as a major engineering project in Gansu Province. The completion of this project filled the gap in the design and manufacturing of polymerization reactors by Lanshi Heavy Equipment.
Many polymer reaction kettles have similar polishing requirements, and they are all equipped with coiled tubes inside. Previously, in China, SenSong was the company used for this task, but later companies such as Yibin emerged in China that could handle it. It’s great to see Lansi getting involved in this as well.
Which one in Yibin? As far as I know, there is one company that produces blast-resistant composite panels – Yibin Jinglei
Over the past few years, Lansi has been continuously filling in gaps.