Blockbuster announcement! Cement clinker energy efficiency TOP4 is released, and large-scale application of alternative fuels has become a secret weapon to improve energy efficiency!

Recently, the Ministry of Industry and Information Technology, the National Development and Reform Commission and the General Administration of Market Supervision jointly released the list of energy efficiency "leader" enterprises in key industries in 2025. The list of cement clinker industry has triggered the focus of the whole industry- three subsidiaries of Huaxin Cement have taken the top three, and Red Lion Group has reached the fourth place. The green practice of these leading enterprises has set a clear benchmark for the low-carbon transformation of the industry! Ccement. Com/news/2511/richtext/IMG/4kt41qf392e1762494470714.png ">

The list data is amazing: Chongqing Huaxin Diwei topped the list with 59.9 kgce/t of comprehensive energy consumption per unit of clinker products. Huaxin Sangzhi and Huaxin Huangshi followed closely with 77.67 kgce/t and 80.61 kgce/t respectively, while Yichun Hongshi with 81. It is worth noting that the energy consumption level of these four enterprises is significantly better than industry average standard, and the common secret behind it lies in the large-scale application of RDF alternative fuels.

Taking Yichang Red Lion as an example, in 2023, the company completed the technical transformation project of comprehensive utilization of 100,000 tons/year alternative fuel resources, overcome the technical difficulties of alternative fuel application, and realized the transformation from "waste" to "energy". In 2024, 70000 tons of alternative fuels alone were added, with a total fuel substitution rate of 27.14%, equivalent to saving 38000 tons of standard coal annually. The comprehensive coal consumption is reduced by 13.

Take an RDF alternative fuel production line with an annual output of 100,000 tons as an example:

● [Solid waste treatment] Through standardized treatment such as sorting and crushing of industrial solid wastes (such as plastic scraps, papermaking waste residues, textile wastes, etc.), 120000 tons of industrial solid waste can be disposed of annually (the utilization rate of solid waste reaches 83%, far exceeding the efficiency of traditional landfill treatment);

● [Energy efficiency improvement] Based on the average calorific value of RDF of 4,000 kcal and the calorific value of standard coal of 5,500 kcal, 100,000 tons of RDF can replace 71,000 tons of standard coal (substitution ratio 1. The energy consumption can be reduced by 4-5kgce/t when the RDF substitution rate (TSR) is increased by 10%;

● [Carbon emission reduction] Combined with the Guidelines for the Compilation of Provincial Greenhouse Gas Inventories and the actual monitoring data of enterprises (referring to the measured coefficient of "saving 26,600 tons of standard coal and reducing 85,200 tons of carbon" by Huaxin Diwei), The production line can reduce carbon dioxide emissions by about 22 per year.

In the cement clinker energy efficiency TOP4 cement kiln, the RDF preparation technology of high-quality alternative fuel plays a core supporting role. The technology converts industrial solid waste into high-quality RDF fuel with stable calorific value and high combustion efficiency through the process of "fine crushing + sorting", which provides an efficient and suitable preparation scheme for large-scale application of RDF alternative fuel in cement kilns.

How to apply RDF as an alternative fuel on a large scale? Therefore, in order to achieve "large-scale, large-scale" application scenarios, high-quality RDF alternative fuel preparation system has become the key.

1.

The RDF alternative fuel preparation system can be applied to a variety of solid waste raw materials, such as waste cloth spinning, industrial solid waste, biomass, decoration waste, domestic waste, etc. Through the flexible adjustment of pretreatment parameters, even in the face of mixed solid waste with complex composition and high impurity content, it can also achieve efficient treatment, avoid idle capacity caused by single raw material, and provide stable raw material guarantee for large-scale production.

2.

RDF alternative fuel preparation system in cooperation with head cement enterprises:

3.

First, a single production line has a processing capacity of 10-40 tons/hour, which can meet the fuel needs of cement enterprises of different scales. Second, the prepared RDF has higher combustion heat value and lower content of harmful elements (chlorine, sulfur, etc.), reduces the influence on the temperature stability of the cement kiln and the quality of the clinker, and provides reliable guarantee for large proportion blending. "The large-scale and large-scale application of RDF alternative fuel can open up the closed-loop industrial chain of solid waste treatment and green production," said

Si Ruide. On the one hand, the industrial solid waste that originally needs to be treated is transformed into a valuable resource, and the pressure of recycling and harmless treatment of industrial waste in the region is alleviated; on the other hand, the new fuel that can replace the fossil fuel (coal) with high carbon emission and high cost is provided for cement enterprises.

energy efficiency lead is not the end." It is a new starting point for green development. The practice of Huaxin and Hongshi has proved that the cement industry can completely get rid of the label of "high energy consumption and high pollution" and become an important carrier of solid waste recycling.