In the raw meal preparation link of cement production, the precision of material classification directly affects the subsequent sintering quality and energy consumption. In recent years, cement classifying equipment has been accelerating its iteration towards the direction of "high precision and high stability". Domestic equipment enterprises have developed a new generation of high-efficiency eddy current classifying equipment based on the characteristics of cement raw meal. By optimizing the structure of the classifying wheel and the design of the air flow field, it realizes the precise separation of particles with different particle sizes in the raw meal.​ Compared with traditional classifying equipment, the control precision of the new classifying equipment for the 0.08mm sieve residue in raw meal has been improved to ±0.5%, and the classification efficiency has increased by 25%. This effectively reduces the problem of increased sintering energy consumption caused by coarse particles entering the rotary kiln. After a large cement group applied this equipment, the homogenization effect of raw meal was significantly improved, the heat consumption of the rotary kiln was reduced by 8kg standard coal per ton of cement, and the production cost was reduced by more than 10 million yuan annually. Industry experts said that with the cement industry's pursuit of low-carbon production, classifying equipment will further integrate intelligent detection technology to realize real-time regulation of raw meal particle size, providing key support for improving quality and reducing costs in cement production.

In cement production, ultrafine powder can not only improve the fluidity of cement paste, but also be mixed with a large amount of industrial solid waste (such as slag and fly ash) to promote the green transformation of the industry. This demand has driven the continuous breakthrough of cement ultrafine powder equipment technology. Recently, domestic enterprises have launched "ball mill + vertical mill combined ultrafine powder preparation equipment". Based on the characteristics of cement and solid waste materials, it optimizes the proportion of grinding media and grinding trajectory, and can crush materials into ultrafine powder with a specific surface area of 600-800m²/kg.​ After this equipment was applied in a cement enterprise, the slag mixing amount increased from 30% to 50%, the clinker consumption per ton of cement was reduced by 150kg, and the 3-day compressive strength of cement increased by 4MPa. The 28-day compressive strength increased by 6MPa. This not only reduces the cost of raw materials but also improves the competitiveness of cement products. According to industry data, the market demand for domestic cement ultrafine powder equipment increased by 30% year-on-year in 2024. It is expected that the high growth will continue in the future, promoting the further improvement of the resource utilization rate of solid waste in the cement industry.

The cement industry is a key field of industrial dust emission. With the full implementation of the national ultra-low emission policy in the cement industry, dust removal equipment has ushered in a wave of comprehensive upgrading. At present, special dust removal equipment suitable for different links such as cement kilns, crushers, and dryers has become the mainstream of the market. Among them, bag-type dust removal equipment accounts for more than 80% of the market in the cement kiln tail dust removal field due to its high-efficiency filtration performance.​ The newly developed special bag-type dust removal equipment for cement adopts PPS composite filter material, which is resistant to high and low temperatures and anti-condensation. Under the high-temperature working condition of 180-220℃ at the cement kiln tail, the dust emission concentration can be stably controlled below 5mg/m³, which is far lower than the requirements of the ultra-low emission standard. At the same time, the equipment is equipped with an intelligent ash cleaning system, which can automatically adjust the ash cleaning frequency according to the dust concentration. The service life of the filter bag is extended to more than 4 years, and the operation and maintenance cost is reduced by 30% compared with traditional equipment. After a cement enterprise completed the upgrading of dust removal equipment, the air quality around the plant area was significantly improved, and the number of dust complaints decreased by 90%, realizing a win-win situation of economic and environmental benefits. Industry analysis points out that in the future, cement dust removal equipment will further develop towards the direction of "low resistance and high efficiency, intelligent operation and maintenance, energy conservation and consumption reduction", helping the cement industry realize the transformation of green production.

In the cement production process, the emission control of sulfur dioxide and nitrogen oxides in the flue gas of the rotary kiln is a core difficulty in environmental protection treatment. In recent years, the special desulfurization and denitrification equipment for cement has realized coordinated and efficient flue gas treatment through technology integration. The "SNCR + SCR combined denitrification + dry desulfurization integrated equipment" developed by domestic enterprises optimizes the active temperature range of the catalyst and the desulfurizer injection process according to the characteristics of complex flue gas composition and large temperature fluctuation of the cement kiln, realizing the synchronous and efficient treatment of desulfurization and denitrification.​ After this equipment was applied in a cement enterprise, the removal efficiency of sulfur dioxide reached more than 95%, and the removal efficiency of nitrogen oxides was stably above 85%. Moreover, it does not produce secondary pollution such as wastewater and waste residue, and the equipment floor area is reduced by 40% compared with the traditional separate equipment. At the same time, the equipment can use the waste heat in cement production for auxiliary heating, reducing the operation energy consumption, and the flue gas treatment cost per ton of cement is reduced by 1.2 yuan. With the introduction of environmental protection subsidy policies for the cement industry in many places to promote enterprises to accelerate the upgrading of desulfurization and denitrification equipment, it is expected that the market scale of domestic cement desulfurization and denitrification equipment will exceed 5 billion yuan by 2025. Technology coordination and cost optimization have become the core trends in the development of the industry.