2025, announced by China Cement Association, Jiangsu Yicheng Southern Cement Co., Ltd. successfully completed the transformation of ultra-low emission in the whole process, and passed the assessment and monitoring of ultra-low emission. It has become the first cement enterprise in Jiangsu Province to meet the ultra-low emission standards. After the transformation, the annual emission of nitrogen oxides was reduced by 65 tons, sulfur dioxide by 70 tons and particulate matter by 55 tons, and the cumulative pollution reduction was about 190 tons, which injected strong momentum into the battle of defending the blue sky in the Yangtze River Delta region. With a high sense of political responsibility and social mission
, Yicheng South has always anchored the direction of "ecological priority and green development" and launched a comprehensive battle for ultra-low emissions. With technological innovation as the engine, "three essence" management as the grasp, and wisdom empowerment as the breakthrough, enterprises have taken a demonstration road of green transformation of traditional industries.
01 Technical transformation breaks through the bottleneck and creates a new benchmark
for ultra-low emissions. Limit control of organized emissions: The flue gas treatment at the kiln end of the production line adopts the system process of "low nitrogen combustion + precise SNCR + SCR combined denitrification system + bag dust removal + wet desulfurization". The ultra-low emission indexes of dust emission concentration ≤ 10 ≤ 10/Nm ³, sulfur dioxide emission concentration ≤ 35 ≤ 35/Nm ³ and nitrogen oxide emission concentration ≤ 50/Nm ³ are realized, and the ammonia escape concentration of flue gas is controlled at ≤ 8mg/Nm ³, which meets the relevant requirements of national organized ultra-low emission. Desulfurization and denitrification system adopts intelligent control to further optimize the removal efficiency of flue gas pollutants, and the consumption of ammonia water per ton of clinker is less than 2 kg/t. Cl, taking into account the environmental protection effect and cost control. Systematic treatment
of unorganized emission: the production line constructs a fully enclosed conveying system to connect the production workshop and storage depots with corridors, so as to avoid dust escape during manual loading and material transfer; The limestone pre-homogenization storage shed, auxiliary materials, raw coal pre-homogenization storage shed and other areas adopt the "fully enclosed grid + spray dust suppression system", and several dust-producing points are equipped with high-efficiency dust collectors to ensure that there is no smoke and dust escaping. Innovative breakthrough of
clean transportation: from the mining area to the production plant, the enterprise has ingeniously conceived the construction of a 1.2 km underground transportation corridor, realizing the full electric transportation of more than 10,000 tons of limestone per day, and completely ending the dust pollution of traditional transportation; Coal and other raw materials arrive at the wharf by water, and the proportion of cement sales by ship is nearly 80%, giving full play to the advantages of "large volume, low energy consumption and low pollution" of water transportation. On the basis of intelligent operation, the
production line has built an integrated management and control platform for environmental intelligence, which includes five core modules:
First, the intelligent management and control module of CEMS system. Real-time detection of emission data and important equipment operation parameters of main discharge outlets such as kiln head, kiln tail, coal mill and cement mill, so as to realize accurate calculation and control of total pollutant discharge.
The second is the intelligent management and control module of unorganized emission, which dynamically monitors the operation status of unorganized emission pollution control equipment and traces historical data in multiple dimensions.
The third is the intelligent management and control module of cleaner production and transportation, which monitors the total amount and proportion of clean transportation of raw materials, cement and clinker in real time, intelligently controls the access control management of the sixth and new energy vehicles entering the factory, and realizes intelligent linkage with the transportation department.
Fourth, the road cleaning management module monitors the operation of the car washing platform and the sweeper in real time, automatically washes the vehicles leaving the factory, and ensures the cleanliness of the vehicles leaving the factory.
Fifth, the air micro-station system management module monitors the concentration of particulate matter in each area in real time, alarms the abnormal concentration in real time and handles it in time to ensure that the environment in the plant meets the standards and is stable for a long time.
Standing at a new starting point, Yicheng South will take "three deepening" as its strategic guidance and open a new chapter of transformation in an all-round way:
First, deepen the innovation of digital intelligence and comprehensively promote the upgrading of intelligence. The
second is to deepen environmental protection innovation , promote the green manufacturing system to high-end, refined and intelligent direction, and achieve energy saving and sustainable development;
Thirdly, we should deepen the mode innovation , actively construct the industrial symbiosis system of "co-disposal of cement kilns + alternative fuels + photovoltaic power generation + energy storage + ecological restoration", create an economic ecosphere of resource recycling, and walk out of a new path of green, low-carbon and high-quality development.
Ultra-low emission is not only the political task entrusted by the state, but also the lifeline of sustainable development of enterprises. South Yicheng will take "blue sky and white clouds as the volume, green water and green hills as the pen", continue to fight the battle of pollution prevention and control, let the concept of "two mountains" shine in the industrial practice, and strive to write the green answer sheet of cement industry in the construction of beautiful China.
At present, the cement industry is facing the double test of energy saving, environmental protection and industrial intelligence upgrading. In order to implement the relevant policy requirements and accelerate the green low-carbon transformation and high-quality development of the cement industry, China Cement Network is scheduled for September 23-24. The 14th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and the 6th Intelligent Summit Forum were held in Zibo, Shandong Province. This conference will bring together industry experts, enterprise representatives and many industry stakeholders to gather group wisdom and promote energy-saving, environmental protection and intelligent transformation and upgrading of the cement industry.
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