How often is a polyoxymethylene plant overhauled, and what are the main tasks involved in such overhauls? ? ?

On April 13, Yuntianhua (28.180, 0.38, 1.37%) and Tianju New Materials held a celebration event to mark 200 days of safe, stable, and continuous operation of Line A of the Polyoxymethylene Unit B and Line A of Unit C. This achievement represented the first time that both lines have operated for 200 days since the start of production of these polyoxymethylene units, setting a record for long-term operation of similar units in China. Since the plant was scheduled for maintenance and restart in October 2021, all employees at Tianju New Materials have, while ensuring proper safety measures including those related to epidemic prevention, steadily advanced the automation improvement projects. They overcame various challenges such as differences in the operation control of the new DCS system following the implementation of inherent safety improvements, thereby optimizing control processes, stabilizing production, improving quality, and ensuring the plant’s long-term, safe, stable, efficient, and optimal operation. The production and profitability in the first quarter achieved the best results since the operation of Yuntianhua’s polyoxymethylene plant began, showing remarkable operational performance and a solid start.