"Stick to 2023" exhibition | Bay lifting Yulong Island refining and Chemical Integration Project (Phase I) torch tower lifting

Bay Hoisting contracted the Yulong Island refining and chemical integration project (Phase I) project torch tower hoisting construction project. Torch bottom section 36m×26m, top section 26m×26m, height 178m; It's the highest torch in all of Asia. The height of the tower is 168m, the total weight is 2100t, and the modular lifting is divided into eight sections. The first section is located in the base assembly, and the remaining seven sections are modular monolithic lifting, with the heaviest weight of 433.65t. SCC20000A 2000 ton crawler crane is used in three working conditions (108m main arm, 108m+60m and 108m+90m tower secondary arm). The lifting process is carried out by "single lifting rotary lifting process". Use the SCC20000A condition to the limit. The lifting point of the tower is carried out by binding and lifting cover. The difficulty of lifting is that the lifting weight of the eighth section is 157t.

On July 18, 2023, with the successful installation of the eighth section tower, the torch tower of the Yulong Petrochemical Refining and Chemical Integration Project (Phase I) was successfully capped.

The torch tower height of Yulong Petrochemical Refining and Chemical Integration Project (Phase I) is 168m and the total weight is 2100t, which is currently the highest torch in Asia. The torch is divided into eight sections of vertical assembly modular lifting, the first section is located in the basic assembly, the second to the eighth section of SCC20000A 2000 ton crawler crane, using the "single lifting rotary method lifting process" to complete the lifting task.

It is reported that there are many difficulties in the tower hoisting, such as coastal operation, high-altitude operation, soft foundation and other unfavorable environmental characteristics. In order to ensure the successful completion of the lifting task, the first torch tower technical disclosure will start on March 14, 2023. According to the "safety, order, efficiency, economy and standard" requirements of Yulong Petrochemical's large transportation and hoisting management group. Overall planning was carried out for the lifting of the torch tower. According to the height and weight of the tower, three working conditions (108m main arm, 108m+60m tower auxiliary arm, 108m+90m tower auxiliary arm) were selected to complete the lifting task of 7 sections, the tower prefabrication site was defined, the ground foundation treatment scheme was adjusted, and the lifting cover design was optimized. Each section of hoisting takes "safety first" as the core concept, and makes plans, responsibilities and measures to ensure the smooth installation of the torch tower.

从2023年6月3日火炬塔架首吊 至封顶，历时45天，完成7个节段吊装任务。面对第八段塔架重心偏心的特殊情况，技术人员不断校核，并根据重心偏移来调整钢丝绳的长度，尽可能的将塔架维持于水平状态，选取合适的位置固定缆风绳，面对周边杂乱无章的施工场地，并选用配重块、路基板当作固定锚点，并在外围设置可移动锚点，避免塔架受风影响发生旋转与臂杆发生碰撞，并在吊装前与参与吊装任务的所有人员进行全面的安全技术交底，做到人人明确吊装的步骤及参数，每一步都不许容错。

现场由吊装总指挥全面统筹全场，确保第八段火炬塔架顺利封顶。并在吊装前与业主、监理、安装单位确认吊装前控制点，对并其提出的疑问进行一一解决，吊装时与安装单位紧密配合，确保第八段塔架吊装顺利封顶，并将SCC20000A型2000吨级履带式起重机性能发挥至极限。

据海湾吊装项目部人员介绍，此次火炬塔架吊装任务既是机会，也是挑战。最终该项目部凭借其专业的吊装素养顺利完成吊装工作，整个吊装过程安全、高效。