The first installation attempt of 147 large-scale equipment units for Phase II of Shaanxi Coal Yulin Chemical was a success!

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At 9:17 a.m. on January 26, the low-pressure tower for the methanol distillation unit of Phase 1 of the second phase of the Shaanxi Coal Yulin Chemical project – a structure 64.9 meters tall, with a diameter of 5 meters and a lifting weight of 285.14 tons – was lifted into place by Shaanxi Huajian Lifting Company. This tower is the first large-scale equipment in the methanol distillation plant, marking the beginning of the installation of subsequent large-scale components. For this lifting operation, an 800-ton crawler crane was used as the main crane, while a 260-ton crawler crane was responsible for assisting with the movement of the load. The space at the methanol distillation plant is limited, so precise control is required for all lifting, moving, and positioning tasks – no mistakes are allowed. To overcome these challenges, the lifting team adhered to the principle of \"planning early, preparing early, and acting early,\" carefully planning and meticulously implementing every detail of the construction process. By making thorough preparations to address various risks, they ensured that the lifting tasks were carried out safely and in an orderly manner. Meanwhile, the other 4 columns to be installed in the methanol distillation unit before the Spring Festival are also in full swing with on-site \"floor welding and outfitting\" work. The critical phase coincided with the arrival of a cold wave, and the low temperatures posed significant challenges to the welding quality of the equipment, the toughness of the steel, and the construction efficiency. To address this issue, it is necessary to first check whether the gas cylinder nozzle is blocked or frozen before welding, to ensure the smooth and stable supply of protective gas ； Secondly, preheating is carried out on the weld area ； Before use, the flux is baked as specified to ensure its moisture content remains below 0.1%, thereby creating favorable conditions for subsequent lifting. It is reported that the lifting company is responsible for lifting 147 large-scale pieces of equipment in Section 2 of this project, with a total lifting weight of approximately 31,341.4 tons; the total weight of the equipment that exceeds size limits is 9,898.62 tons. The completion of this first lifting task not only marks the beginning of the lifting operations for the remaining large-scale equipment in the methanol plant, but also signifies that the project construction at this stage has shifted from civil engineering work to installation work.