Capping of the core structure framework for the phosphate concentration unit in Guizhou Kailin Group’s Fertilizer Mine Company’s 2×150,000 tons/year phosphate concentration project

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On January 28, the phosphoric acid concentration unit of Guizhou Kailin Group Co., Ltd.’s mineral fertilizer plant, a project with a capacity of 2×150,000 tons per year that was constructed through EPC general contracting by China Wuhuan Engineering Co., Ltd., affiliated to China Chemical Engineering, successfully completed the erection of the core structural framework, laying a solid foundation for subsequent equipment installation and the full completion of the project. As one of the core challenges of the project, the main framework of the concentration unit constitutes a highly complex and dangerous construction project that requires sophisticated techniques and poses significant safety risks. Looking back at the construction process, difficulties and challenges arose one after another. The project site is extremely limited in size, and it overlaps with the existing production equipment and pipelines within the plant, making coordination very difficult ； The working area is severely restricted and the environment is complex. The construction period fell during the severe cold season, and the persistent low temperatures posed serious challenges to concrete pouring and curing. The poor external traffic conditions made it difficult to transport materials, further increasing the complexities of project organization. In the face of these challenging tasks, the project team has always adhered to the principle of \"technology first, solutions-driven approach,\" organizing experts to conduct repeated evaluations in order to develop a rigorous and reliable special construction plan for high-formwork work. Both the internal and external scaffolding use plug-in disc-type steel pipe supports, which ensure efficient, stable, and reliable construction. All personnel upheld the spirit of \"being particularly able to endure hardship, fight hard, and make sacrifices,\" adopting a \"day-and-night shift, continuous rush work\" approach. The site was illuminated by lights and filled with the noise of machinery as everyone worked tirelessly to meet deadlines, ultimately ensuring that the framework was completed safely, to quality standards, and on schedule.