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, through a series of energy efficiency upgrades and process optimizations, the actual production capacity has now surpassed 300,000 tons annually. In 2007, the company successfully produced 290,100 tons of 100% phosphoric acid, marking a 16.04% increase compared to the previous year. This growth also led to significant cost savings, estimated at nearly 7 million yuan.
Over recent years, the company has implemented 128 technical improvement projects aimed at enhancing the efficiency and performance of its phosphoric acid system. These initiatives included anti-fouling treatments, research into phosphorus recovery from phosphogypsum, and wet grinding optimization, all contributing to the broader goal of increasing production capacity. As a result, the operating load of the facility has significantly improved.
In 2007, during a scheduled maintenance period, the company upgraded the B line of its older phosphoric acid system, focusing on energy concentration improvements. To enhance filtration and cleaning efficiency, the new system introduced a flow cell extraction method, refining the overall filtration and cleaning process. Additionally, to extend the operational cycle of the phosphoric acid concentrator, the company adopted a fractional digestion approach for filter residue from both dilute and concentrated acids. This helped improve the aging process of both types of phosphoric acid.
By the second half of 2007, monthly production levels steadily increased, with the company achieving a record high in December, producing 28,700 tons of phosphoric acid in a single month. This milestone demonstrated the effectiveness of the ongoing technical upgrades and the company's commitment to continuous improvement.
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