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Successful lifting of multi-nozzle gasifier for Hubei’s ammonia synthesis upgrade project Author/Source: Multi-Nozzle Date: 2022-01-14 Clicks: 9 On January 12, 2022, the multi-nozzle gasifier and the synthesis tower in the synthesis workshop of Xinyangfeng Agricultural Technology Co., Ltd. were successfully lifted into place! Located in Shiqiaoyi Town, Jingmen City, Hubei Province, this project is a key initiative undertaken by Xinyangfeng Company as part of its strategic development plan for the 14th Five-Year Plan period. The total land area of the project is 543,600 square meters, with a total investment of 1.5 billion yuan; the annual production capacity is 300,000 tons of synthetic ammonia. All units in this project employ advanced domestic manufacturing processes; the gasifier uses a new type of multi-nozzle water-coal slurry opposed gasification technology developed jointly by East China University of Science and Technology and Yankuang Guotuo ； The synthesis tower employs advanced full-radial technology and consists of an outer cylinder and internal components. The outer cylinder has a net height of 24.0 m, and the internal components contain three layers of insulated catalyst beds, holding a total of 65.87 m3 of iron-based ammonia synthesis catalyst. All three layers of the structure of this synthesis tower are fully radial. At the center of the catalyst bed, there are two removable baffle-type interlayer heat exchangers, one at the top and one at the bottom. The ammonia concentration at the tower outlet can reach 19.5–20.5%, while the temperature can go up to 450°C; the ammonia then enters the steam superheater directly, producing superheated steam at 4.0 MPa and 400°C as a by-product. The civil engineering construction of the gasification workshop is carried out by Zhongkai Construction, while the installation work is handled by Sinochem Sixth Construction ； The synthesis workshop is the site where An in Henan Province is responsible for the installation and construction work. The gasifier and synthesis tower to be lifted this time are both core equipment of this project site: ① The gasifier has a diameter of 3.4 meters, a length of 22.18 meters, and a weight of 247.3 tons. The lifting height is 67 meters, which makes the lifting process difficult due to its high height. Before the lifting operation, the project team evaluated the entire lifting plan, provided thorough safety and technical instructions, and ensured that all personnel involved fulfilled their respective responsibilities. The main crane used for this lifting operation is a 750t crawler crane, while the auxiliary crane is a 275t crawler crane ； The main crane was used for lifting, while the auxiliary crane assisted in guiding the load. Technicians from Sinochem Sixth Construction carried out precise calculations and simulated the lifting process with an empty load, thus preparing thoroughly for the lifting and positioning of the gasification furnace. Lifting operations began at 1 p.m. on January 11, 2022, and were completed with the item in place by 3:30 p.m. on January 12 ； ②The synthesis tower has a diameter of 2.4 meters, a height of 24.0 meters, and a weight of 320 tons. Before the lifting operation, the project team conducted an inspection of the entire lifting system and provided necessary safety instructions, with each participant fulfilling their respective responsibilities. The successful installation of the gasifier and synthesis tower marks a new starting point for on-site construction, setting off a new milestone.