【Ten Years of Rapid Development in Chemical Equipment】2273-2022: Guizhou Phosphorus Chemical (Fuquan) 40,000 tons/year iron phosphate drying + roasting facility

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Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Development in Chemical Engineering Equipment】Continuous updates and summaries are available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** In May 2022, the 40,000 tons per year iron phosphate drying and roasting facility developed by Tianhua Institute for Guizhou Phosphorus Chemicals (Fuquan) was successfully tested after its first batch of material was fed into it. In recent years, the new energy industry has developed at a rapid pace, and there is a huge demand for iron phosphate as a precursor material for lithium batteries, offering broad market prospects. Tianhua Institute seized this industry opportunity, planned in advance, and invested substantial research and development efforts to tackle technical challenges. In 2019, Tianhua Institute developed for the first time an industrial facility for ferrophosphorus production that could use natural gas as a heat source and had a large processing capacity. At the same time, Tianhua Institute continues to uphold its innovative spirit of striving for excellence, and by taking into account project requirements and regional characteristics, it keeps exploring, innovating, and making breakthroughs in ways to expand the energy supply for iron phosphate production facilities. In 2021, Tianhua Institute took on the iron phosphate project in Guizhou. Due to the insufficient natural gas supply in the location of this project, industrial facilities that use natural gas as a heat source are not suitable for the local conditions and the project’s requirements. To this end, the design team at Tianhua Institute immediately changed their approach, switching the heat source from natural gas to the more abundant steam resource. However, when low-temperature steam is used as the heat source, the amount of gas required is several times greater than that in systems using high-temperature flue gas as the heat source, which poses significant challenges to the design and manufacture of swirl flash devices. To ensure effective flash drying and save energy, the team overcame various challenges and innovatively designed a process flow that combines \"superheated steam drying\" with \"electrical roasting\". Through software-based flow field simulation and process calculations, this process can fully meet the design requirements for the energy-saving system and key parameters of the equipment in the project, and it can significantly reduce operating costs. In March 2022, the \"ferric phosphate flash drying + calcination system\" device that uses steam as a heat source and was developed by Tianhua Institute successfully delivered to the client, overcoming various difficulties that arose due to the impact of the pandemic – including delays in the supply of raw materials and the inability to ship the products once they were manufactured. After the equipment arrived at the project site, the professional technicians from Tianhua Institute, while adhering to epidemic prevention measures, put the greater good first and worked tirelessly for over 2 months to provide on-site guidance for the installation. Before the trial run, the relevant technical personnel, electrical and instrumentation staff, as well as process tuning experts worked together seamlessly to carry out the tuning tasks intensively; working round the clock was an everyday occurrence. Hard work pays off. On May 20, the first set of facilities for the drying and roasting of iron phosphate at Guizhou Phosphorus Chemical (Fuquan), with a capacity of 40,000 tons per year, successfully completed its trial run with the first batch of material fed into it! The drying and roasting facility for ferrophosphoric acid with an annual capacity of 30,000 tons at Guizhou Phosphating (Xifeng), which was signed during the same period, is now also in the final stages of installation. At present, the equipment is operating stably in the owner’s factory, with all performance indicators meeting the required standards; its safety and cost-effectiveness have been recognized by the owner. The successful application of this system will further enhance Tianhua Institute’s technical capabilities in developing efficient and energy-saving drying and roasting equipment, thereby contributing to the advancement of new energy technologies in China.