Lifting of the third section of the Propylene Distillation Column (T-2304) for Project 800,000 tons of olefins at Yankuang Energy Rongxin Chemical

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Recently, at the site of Yankuang Energy Rongxin Chemical’s 800,000-ton olefins project, the lifting operations for the third section of the No. 2 propylene distillation tower (T-2304) were officially launched upon the command of the chief lifting officer. A 2,000-ton crawler crane raised its arm and applied steady force; after 1 hour of precise operation, the section of the tower was successfully transported to its designated positioning and fitted in place smoothly. This marked the successful completion of the lifting task for the tallest and largest single piece of equipment in this project, thus accelerating its progress. As a key component of the 800,000-ton olefins project, the No. 2 propylene distillation tower is considered the cornerstone of the project, and its lifting requirements and technical complexities are among the highest in the industry. The diameter of the 2# propylene distillation tower is 7.6 meters, with a total height of 113.75 meters – equivalent to the height of 38 stories. Its wall thickness is 54 millimeters, and its total weight is approximately 1,400 tons. It is the tallest and heaviest individual tower in the entire project, as well as the core component of the methanol-to-olefins facility. It plays a crucial role in determining the precision of product separation and the stable operation of the facility; therefore, strict requirements are placed on the safety and accuracy of the lifting operations involved. This lifting operation faces multiple challenges: the equipment is oversized, large in size, and heavy, making transportation and lifting extremely difficult ； The limited space at the project site poses various difficulties in terms of equipment placement, boom rotation, and planning of lifting paths ； The severe cold and low temperatures in Inner Mongolia not only test the performance of lifting equipment but also pose challenges to the professional skills and physical endurance of construction workers. https://mmbiz.qpic.cn/sz_mmbiz_png/p1sUgMiciaicCk8arUrOEx1Tpr8nnHtvlM2ryicuplvKcnP8Y0mn8nxLvyVnVicCWRSpy4acU90VPEDxL4rJuO4LBVr79HJc95MHrgtZ7bkKWaPw/640?wx_fmt=png&from=appmsg#imgIndex=3 To ensure the success of the lifting operation, the project team set the goals of \"safety, efficiency, and precision\" and entered a focused mode of work in advance↓↓↓ Multiple rounds of technical evaluations and plan optimizations were carried out to develop a scientific construction plan that involved delivering the components to the site in stages, carrying out welding on-site, and lifting the components in segments; ultimately, it was decided to use a 2000-ton crawler crane to lift the components in three stages ； Careful planning is carried out for key aspects such as the placement of equipment, the adjustment of the boom’s operating conditions, and the lifting path; preliminary plans are evaluated and multiple simulation exercises are conducted to establish a solid safety framework at the technical level. https://mmbiz.qpic.cn/mmbiz_png/p1sUgMiciaicClgvib2zvcfibPcR6SPuVGW7y5kmuzWiaAVQ30RZ7sb0icTQvyxFiag3NaiaaKDEIQnwzXicGibCxb30aaWH4uLWNo424uo9TgT9zxrTYQ/640?wx_fmt=png&from=appmsg#imgIndex=4 At the lifting site, personnel in roles such as supervision, operation, monitoring, and technical support carry out their duties accordingly and work in close coordination, following the established procedures strictly. From the installation of the slings and the lifting of the tower structure, to its rotation in mid-air and precise alignment, every step is controlled to within millimeters, ensuring a safe, smooth process without any deviations.