Anhui Six Kingdoms Chemical Co.,Ltd
The original design capacity of the phosphoric acid production plant at Anhui Liuguo Chemical Industry Co., Ltd. was set at 180,000 tons per year. However, in recent years, through a series of energy efficiency improvements and system upgrades, the actual production capacity has surpassed 300,000 tons annually. In 2007 alone, the company produced 290,100 tons of 100% phosphoric acid, marking a 16.04% increase compared to the previous year. This growth not only boosted output but also led to cost savings of nearly 7 million yuan, demonstrating the effectiveness of the optimization efforts.
Over the past few years, the company has carried out 128 technical renovation projects aimed at enhancing the performance of its phosphoric acid production system. These initiatives included anti-fouling treatments, research into residual phosphorus recovery from phosphogypsum, and the transformation of wet grinding processes, all aligned with the broader goal of increasing production capacity. As a result, the operating load of the facilities has significantly improved.
In 2007, during a scheduled maintenance period, the company upgraded the energy-intensive B line of the old phosphoric acid system. To enhance filtration and cleaning efficiency, they introduced a new system that utilized flow cell extraction, improving the overall filtration process. Additionally, to extend the operational cycle of the phosphoric acid concentrator, they implemented a method involving the fractionated digestion of filter residue from both dilute and concentrated acids. This helped improve the aging process of both types of phosphoric acid, leading to better quality and stability.
By the second half of 2007, the monthly output of phosphoric acid steadily increased, reaching a record high of 28,700 tons in December. This achievement reflected the success of the ongoing technical upgrades and the company's commitment to continuous improvement in its production processes.
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