Li Kunming: Four Paths to Improve the Energy Efficiency Level of Cement Industry

On July 6, the "2023 China Cement Energy Conservation and New Energy Development Conference" sponsored by China Cement Network was held in Chongqing, a mountain city. Li Kunming, a cement analyst of

China Cement Net · Cement Big Data Research Institute, delivered a brilliant speech on the theme of "Energy Efficiency Status and Future of Cement Industry: The Road Is Long and the Future can Be Expected". He said that cement is the largest energy-consuming industry in the building materials sector, with clinker production of about 1.43 billion tons and coal consumption of more than 150 million tons of standard coal in 2022 . Cement consumes a lot of energy and resources in production. How to improve energy efficiency and reduce emissions has always been an important task for the industry to achieve high-quality development, and also an important guiding point for policy. What are the ways to improve the energy efficiency level of cement industry in the

future? Li Kunming believes that the first is the extensive application of energy-saving technology and equipment, the use of high-efficiency grate coolers, kiln burners and other energy-saving equipment. The second is to upgrade energy-saving technology and equipment, and carry out technical transformation of preheater, fan, motor frequency conversion, kiln burner, etc. To save electricity and improve the combustion speed of pulverized coal. The third is to build an energy management and control center to monitor and control all energy-using equipment in each production process, and to refine the analysis of energy use. Fourth, vigorously promote the co-disposal of solid waste, cement kiln co-disposal of domestic waste, municipal sludge, hazardous waste, etc., to improve the fuel substitution rate.

Li Kunming emphasized that there is a huge space for the development of alternative fuels, which is also an important way for the cement industry to achieve energy saving, efficiency improvement and carbon reduction. Improving the utilization rate of alternative fuels is an important way for China's cement industry to improve energy efficiency. However, despite its broad prospects, there are many problems, such as the single source of waste, the high water content of domestic waste, and the unstable calorific value of alternative fuels.