At 9:17 am on February 20, 2023, as Song Xiaojun, general manager of Hainan Yisheng Petrochemical Company, announced that SHAANXI PETROLEUM CHEMICAL ENGINEERING AND CONSTRUCTION CO., LTD. Hainan Yisheng Petrochemical Purified Terephthalic Acid (PTA) The highest and heaviest core equipment of the project, the high-pressure rectification tower, began to be hoisted. This hoisting was carried out by SHAANXI PETROLEUM CHEMICAL ENGINEERING AND CONSTRUCTION CO., LTD. The hoisting company used the 4000t crawler crane main crane and the 1250t crawler crane tail delivery operation method for the first time , under the joint witness of the owner, supervisor and equipment manufacturer, the hoisting task was successfully completed after 4.5 hours of continuous operation, setting a new record for the heaviest single vehicle and single hook in the company's hoisting history.

The hoisting operation of the high-pressure rectification tower is one of the most difficult construction projects in the PTA project. The height of the high-pressure rectification tower is 80.5 meters, the diameter is 8.5 meters, and the lifting weight reaches 1621.5 tons. In order to ensure the safe and smooth progress of hoisting, the project department efficiently coordinates various resources, organizes the work of early data collection, construction organization design, expert demonstration, resource organization, and simulation exercises; conducts surveys on the entry routes of large cranes, and conducts various professional inspections. The personnel conducted safety and quality technology disclosure, and completed the preparations for the foundation of the crane station area, obstacle clearance, and construction coordination in advance; the lifting company worked overtime to complete the vehicle assembly in only 13 days; in order to improve the efficiency of subsequent installation work and reduce construction Safety risk, the project department completed the installation tasks of the ladder platform of the tower body, the pipeline attached to the tower, equipment insulation and lighting and other accessories ahead of schedule.

In order to ensure the safe hoisting of the high-pressure distillation tower, Wang Junjie, the company's deputy general manager and chief engineer, led the relevant personnel from the technology and information center, quality management department, and safety and environmental protection department to the project site one day in advance. Crane machinery, etc. are checked again to ensure that the hoisting operation is safe and sound. The smooth hoisting of the high-pressure distillation tower demonstrated the strong hoisting strength and superb construction technology of SHAANXI PETROLEUM CHEMICAL ENGINEERING AND CONSTRUCTION CO., LTD. The foundation was laid for developing the Hainan market.Editor/Ma Xue