[Haichuan Overseas Engineering] Large chimney for Saudi Mining Company’s Ras Al Khair Phosphate Fertilizer project installed in one go through lift installation

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The 25th National \"Safety Production Month\" in 2026: Everyone should talk about safety and know how to handle emergencies; risks and hazards need to be identified and addressed. -------------------------------------------------- The total length of the chimney to be lifted this time is 42.1 meters, while the elevation of the exhaust gas absorption tower is around 39 meters. The chimney shell is divided into three sections, with lengths of 14.17 meters, 13.86 meters, and 14.06 meters respectively. The maximum diameter of the shell is 5.5 meters, and the diameter at the top lifting lugs is 4.15 meters. The weight of the chimney shell is approximately 65 tons, the weight of the operating platform is about 20 tons, giving a total weight of the equipment of around 85 tons. To ensure the smooth progress of the lifting operation, the project team carried out thorough planning and organization, discussed the lifting plan repeatedly, and conducted detailed technical briefings. Ultimately, an overall lifting approach was adopted: an 800-ton crawler crane was used as the main lifting device, with a 300-ton truck crane employed to assist in the lifting process. During the lifting process, the main crane precisely controlled the movement trajectory of the equipment’s rear, while the auxiliary cranes worked in coordination to prevent the equipment from coming into contact with the ground. This allowed for the equipment to be placed in position in just one lift. The entire operation was carried out smoothly and in an orderly manner, demonstrating the company’s technical expertise in lifting large-scale equipment and carrying out complex construction projects. This performance earned high praise from the client and the general contractor, and it laid a solid foundation for the subsequent installation of process pipelines and the timely completion of the project as a whole.