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Evaluation of the technological upgrade to ammonia-based granulation in Luguo Chemical Company’s compound fertilizer production facility / Author/Source: Anhui Luguo Chemical Co., Ltd. Date: 2020-04-10 Clicks: 18 Recently, the technological upgrade to ammonia-based granulation in Luguo Chemical Company’s compound fertilizer production facility was approved by experts, marking the company as the first in China to successfully transform its compound fertilizer production process from slurry-based granulation to ammonia-based granulation. With the technical upgrades, the annual designed production capacity of this facility reaches 400,000 tons, making it the largest ammonia-based compound fertilizer production plant in China at present. Previously, like most large domestic chemical companies, the firm used the traditional slurry method for fertilizer granulation. Affected by various factors such as location, climate, and the environment, especially when switching to the production of multi-varietal compound fertilizers, both the actual production results and the potential of the manufacturing facilities failed to meet the expected goals. Through field research and exploration, and adhering to the principles of efficiency and cost savings, the company carried out on-site modifications by switching from the slurry process to an amino acid-based production method. It continued to optimize the production process based on the design plans, and despite the lack of existing reference samples, it managed to achieve stable operation of the production equipment through various technical efforts. Here, a new dust removal system was built and put into use simultaneously, which greatly improved the on-site production environment and ensured clean and civilized production. Next, the company will also build on the achievements of these technical upgrades by enhancing the stability of the equipment and increasing the operational load of the system, in line with the market demand for compound fertilizer products.