Group actively responds to the national policy of "double control" of energy consumption and the new standard of energy consumption quota per unit product of cement, aiming at the difficulties of small single-line capacity of existing cement production plant, shortage of clinker , strict control of energy consumption and severe market competition. Vigorously carry out energy-saving and carbon reduction technology transformation and optimization, increase capital investment, to upgrade and transform to solve the problem of high-quality development of cement industry, to ensure the effectiveness of cost reduction and efficiency. With the implementation of the standard of "Energy Consumption Quota for Cement Unit Products" (GB16780-2021)
in 2022, Jinni Company quickly put the energy consumption of cement industry on the agenda, according to the benchmark level of energy efficiency and the benchmark level, during the period of peak staggering production and shutdown, Jinni Cement Co., Ltd. The preheater, raw mill, coal mill, grate cooler and other systems of two new dry process cement production lines were transformed, and technological innovation was vigorously carried out. With the highest standards, the most stringent requirements and the most practical measures, the technical barriers were broken through and the technical transformation was completed efficiently. After the completion of the transformation, the comprehensive energy consumption per unit product of the two new dry process cement production lines is lower than latest national standards, better than industry energy efficiency benchmark level, and the production capacity is also improved. The daily output of clinker in the dry process plant is increased from 1300t/d to more than 1600t/d, the capacity is increased by 26%, and the annual capacity is increased by nearly 80000 tons; the daily output of clinker in the No.2 dry process plant is increased from 2750t/d to more than 3200 t/d, the capacity is increased by 16.4%, and the annual capacity is increased by nearly 100000 tons. In the process of
transformation, Jinni Company took the technological transformation as an opportunity, continuously strengthened the fine management, broke through the technical problems of large amount of carbide slag clinker calcination, greatly improved the output and quality of cement, and Co nsumed about 660000 tons of carbide slag produced by Xinrong Chemical Industry and Acetylene Company annually, so as to achieve full absorption and increase. To ensure the safe and effective operation of the chlor-alkali chemical industry chain under high load; meanwhile, the annual consumption of fly ash is 400,000 tons and the annual consumption of desulfurized gypsum is more than 100,000 tons, which effectively alleviates the pressure of regional solid waste disposal.
This transformation not only realizes energy saving, consumption reduction, quality improvement and efficiency enhancement, but also effectively promotes the research and development and promotion of high-efficiency energy-saving technology in cement production, lays a solid foundation for the cement building materials industry to implement the requirements of "carbon peak, carbon neutralization", improves the efficiency of solid waste utilization, and makes new contributions to regional economic prosperity and construction of ecological civilization.
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