Recently, Guangdong Provincial Department of Industry and Information Technology released the capacity replacement plan for the 770t/d cement clinker construction project of Shaoguan Dingxin New Materials Co., Ltd. The plan shows that a new Φ3.3 × 54m new dry kiln white cement production line will be built. The cement production capacity of 330 t/d was replaced from a dry preheater kiln white cement production line in Luoding City. Converted by the replacement ratio of 0.75: 1, the replacement index capacity in the new project is 440 t/d.
Since the Ministry of Industry and Information Technology issued the first implementation measures for capacity replacement in industries with serious overcapacity in July 2014, it has been clear that projects in industries with serious overcapacity (including new construction, reconstruction and expansion) must formulate capacity replacement plans and implement equivalent or reduced replacement. The Measures for the Implementation of Capacity Replacement in the Cement and Glass Industry (2021 Edition), which is currently implemented, clearly prohibits the filing and construction of new cement clinker projects to expand production capacity.
New cement projects can not expand production capacity, which is a red line. Yes for gray (general purpose) cement, and also for white cement. Due to the strict requirements of white cement on its raw materials and fuels, firing, cooling, bleaching and grinding processes, the rotary kiln equipment also needs technical transformation, and the clinker production capacity of the same specification kiln type is only about 50% of the general cement clinker production capacity. Therefore, in January 2020, the Ministry of Industry and Information Technology issued the administrative explanation of "Questions and Answers on the Implementation Measures of Capacity Replacement in Cement and Glass Industry", which mentioned for the first time that its capacity index could be halved. In the Implementation Measures (2021 Edition), it is formally listed in Article 13 that the production capacity index of new white Portland cement clinker projects can be reduced by half.
Example (data from the corresponding provincial cement clinker production line list), Henan Jiaozuo Saixuebai Cement Co., Ltd. Ф3.2 × 52m kiln. Its actual production capacity of gray cement is 1000t/d, and the production capacity of white cement is 500t/d, which is only 50%; Guangdong Deqing Yingqi Building Materials Co., Ltd. Φ3.5 × 45m kiln. The actual production capacity of gray cement is 1500t/d, and the production capacity of white cement is 850t/d, which is only 57%. This shows that for a kiln of the same specification, the capacity of white cement is only about half of that of grey cement when determining the capacity.
According to the provisions of the Implementation Measures (2021 Edition), the capacity replacement ratio of cement clinker construction projects located in non-key areas of air pollution prevention and control shall not be less than 1.5: 1. From Luoding (a prefecture-level city in Yunfu) to Shaoguan (a prefecture-level city), the white cement production capacity of 330 t/d shall be replaced according to the reduction of 1.5: 1, that is, 220 t/d. Now the replacement ratio in the replacement plan is 0.75: 1, which is also halved? What if 330t/d becomes 440t/d? After this replacement operation, the production capacity was increased by 110t/d instead of being reduced.
If the principle that the production capacity index of white cement can be halved is evolved into that the replacement ratio of its production capacity can also be halved, won't the production capacity be expanded in the replacement of white cement production capacity? This practice obviously touches the red line that new cement projects can not expand production capacity. The replacement of
white cement production capacity can also be read: "Cement Net Exclusive: What is the situation that the production capacity index can be halved?"
