The 700,000 tons/year EVA low-pressure separator for the Jintang New Materials project has been successfully completed

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Recently, two low-pressure separators designed and manufactured by Lansi Heavy Equipment for the 700,000 tons per year EVA (ethylene-vinyl acetate copolymer) production facility of Rongsheng New Materials (Zhoushan) Jintang New Materials project have been successfully completed and are about to be shipped. This project is invested and developed by Rongsheng Holding Group, with a focus on developing high-end chemical industry chains such as low-carbon polyolefins, fine chemicals, high-performance resins, engineering plastics, biodegradable plastics, specialty polyurethanes, and new fiber materials. Project 700,000 tons/year EVA plant low-pressure separator is a key equipment for polymer melt devolatilization and gas-liquid separation in EVA production; it has a diameter of 4 meters and a length of 11 meters, and is made of S31603 stainless steel. During the design and manufacturing process, the sales branch of Lanshi Heavy Equipment, the R&D and design center, and the Qingdao office worked together efficiently to meet customer requirements. By drawing on the proven technology developed for low-pressure separators in the Zhejiang Petrochemical project, they overcame the challenges posed by the thin wall thickness of the cylinders and the large areas that required full welding due to the presence of numerous semi-tube structures on the outer surface. Through measures such as optimizing the manufacturing processes, adjusting work procedures, and coordinating the use of various types of equipment, they were able to complete the production tasks efficiently. The implementation of this project has further enhanced Lansi Heavy Equipment’s capabilities in design, simulation analysis, and precision manufacturing of large-scale chemical separation equipment. Lanshi Heavy Equipment will make full use of its advantages in research and development as well as manufacturing, continuing to focus on the fields of high-end chemical industry, new energy, and new materials-related equipment. By pursuing both technological innovation and process improvement, it will strengthen its core technical foundations, steadily enhance the competitiveness of its entire industrial chain, and accelerate the company’s progress toward high-quality development that is characterized by sophistication, intelligence, and sustainability. Rongsheng New Materials (Zhoushan) Co., Ltd. was established in January 2022 and is located in Jintang Town, Dinghai District, Zhoushan City, Zhejiang Province. It is a wholly-owned subsidiary of Rongsheng Petrochemical, with a total investment of approximately 67.5 billion yuan. The company relies primarily on the products from the upstream Zhoushan Green Petrochemical Base and Ningbo CICC Petrochemicals as raw materials, extends its industrial chain downstream to develop new material projects, which are currently under construction in an orderly manner.