In view of a series of production difficulties such as fluctuation of phosphogypsum impurities, easy loss of sulfur components, difficult control of kiln conditions, unstable finished products, ring formation and blockage, the industry can adopt the closed-loop idea of "pre-treatment + steady-state control kiln + formula bottom-up + system homogenization" to solve the problem from the root, rather than back-end.

From September 21, 2026 to September 27, 2026, the highest opening rate of cement kilns in all provinces in China was 74.07% in Zhejiang Province. Kiln opening rates of 50% and above were 73.75% in Anhui Province, 53.65% in Hubei Province, 52.38% in Hainan Province and 51.32% in Yunnan Province.