【Major Equipment in the Chemical Equipment Industry】248 – Domestic production of waste heat boilers for synthesis ammonia plants with an annual capacity of 300,000 tons

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Red May for chemical industry workers! Reply reward! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. There has also been significant progress in China’s chemical processing equipment, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. We invite everyone to share their insights and discuss these topics together; let’s cheer for Made in China and support the development of chemical processing equipment! ===================== The older generation of chemical engineers in China holds a special affection for the 13 sets of large-scale fertilizer production plants that were imported in the 1970s and 1980s. It was these plants that drove the development of China’s fertilizer industry, particularly its nitrogen fertilizer sector. It remains a regret that some key equipment, including the waste heat boilers for the synthetic ammonia plants with an annual capacity of 300,000 tons, could not be manufactured domestically. In April 2021, the conversion gas waste heat boiler designed and manufactured by Tianhua Institute for Xinjiang Tianyun Chemical Co., Ltd.’s 300,000 tons per year ammonia synthesis plant was successfully commissioned and put into operation. After more than a month of operational testing, the equipment ran smoothly, with all performance indicators meeting the process requirements. This marks an important interim achievement in this major project to localize such equipment domestically. The Xinjiang Tianyun 300,000 tons/year synthetic ammonia plant uses equipment imported in the 1980s; it was relocated to Xinjiang from the former Qixiashan Fertilizer Factory. The waste heat boiler for the converted gas, which was imported from abroad, has experienced leaks over the years due to its long operating time, resulting in shutdowns for maintenance and failing to meet the requirements for safe and stable operation over extended periods. There is an urgent need to replace this waste heat boiler with a new one. The customers' needs are our task. Upon receiving this order, Tianhua Yuan attached great importance to it; the chairman took personal charge of the project, overseeing everything in an overall manner, and coordinated the efforts of various departments to work together effectively, thus accelerating the production process. The Party branch of the Chemical Engineering Research Department fully leverages the vanguard role of Party members, organizing professional technicians from the waste heat boiler research institute to form a project design task force to take the lead in the design work. Taking into account the actual conditions on site, through technological innovation and structural optimization, the project team successfully completed the technical development of the equipment as well as the design of the drawings with high quality. The Nanjing company under Tianhua Yuan faced tight deadlines and demanding manufacturing tasks; it dared to take the lead and confront these challenges head-on. Through efficient coordination among various departments such as design, procurement, and production, the equipment was delivered to the customer on schedule, thus successfully completing this task of design and supply. This effort led to the localization of the waste heat boilers for synthetic ammonia plants with an annual capacity of 300,000 tons.