Shandong Province Cement Industry Ultra-low Emission Upgrading Plan Released!

Recently, the Shandong Provincial Department of Ecology and Environment issued the "Shandong Cement Industry Ultra-low Emission Upgrading Plan".

Promote the upgrading of ultra-low emission of cement clinker production enterprises (including mines) and independent grinding stations (including cement enterprises producing special cement and co-processing solid waste). By the end of 2025, 50% of the cement clinker production capacity of the whole province will be transformed; by the end of 2028, the cement clinker production enterprises in key areas will be basically transformed, and 80% of the cement clinker production capacity in other areas will be transformed. New (including relocation) and expanded cement projects in the province should reach the ultra-low emission level when they are put into operation. Cement enterprises or facilities listed in the phase-out plan no longer require the implementation of ultra-low emission transformation. The main tasks of ultra-low emission transformation of

cement enterprises include:

(1) Organized ultra-low emission transformation. Under the condition that the reference oxygen content is 10%, the hourly average emission concentration of flue gas particulate matter, sulfur dioxide and nitrogen oxides in the waste heat utilization system of cement kiln and kiln tail is not higher than 10 mg/m ³, 35 mg/m ³ and 50 mg/m ³ respectively. See Annex 1 for

other specific indicators of organized emissions. The hourly average emission concentration of at least 95% of the monthly production time of cement enterprises with ultra-low emission meets the above requirements, and the period that fails to meet the ultra-low emission shall not exceed the relevant requirements of the Emission Standard of Air Pollutants for Building Materials Industry (DB37/2373 — 2018). Mature and applicable pollution control technologies shall be selected

according to the manufacturing conditions of the plant. To strengthen source control, cement kilns are equipped with low-nitrogen burners, low-nitrogen combustion technologies such as staged combustion and fine control of oxygen content in other decomposition furnaces are adopted, and combined denitrification technologies such as selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) are adopted for kiln tail flue gas. Ammonia escape is controlled by taking effective measures such as reasonably controlling the amount of ammonia sprayed and optimizing the reaction temperature, reaction interval and residence time, and the ammonia water consumption for denitration is less than 3.5kg/t clinker (based on the ammonia water concentration of 20%). Bag type dust removal, electric bag composite dust removal and other high-efficiency dust removal technologies are adopted for

dust removal. Flue gas bypasses discharging to the environment shall be banned by means of thorough removal, cut-off, physical quarantine, etc. Those reserved for safety production shall be kept closed and sealed in case of non-emergency, and supervision shall be strengthened by installing automatic monitoring equipment, flowmeters, etc. It is encouraged to install inductive valves on the bypasses, and the signals such as valve opening status and opening shall be connected to the central control system, and historical records shall be kept.

(2) Unorganized emission control. On the premise of ensuring safe production, effective control measures such as sealing and sealing should be taken for unorganized emission sources such as material storage, material transportation and production process. To strengthen the control of dust in mining, cement mines meet the construction requirements of the Code for Green Mine Construction of Non-metallic Mines (DB37/T 3843-2019), and mining machinery drilling machines are equipped with dust collectors or other effective dust removal facilities. Powdery materials shall be stored in closed silos and storage tanks, and other raw materials and fuels shall be stored in closed sheds. Bulk raw materials, fuels and products shall be unloaded, loaded, batched and transported in a closed or enclosed manner. Transportation shall be carried out in a closed manner such as closed belt, closed corridor, tubular belt conveyor or closed carriage, vacuum tank truck, pneumatic conveying, etc. The feeding devices of crushers and mills shall be provided with closed or enclosed dust-proof measures. There shall be no visible smoke and dust escaping from the dust-producing points and production facilities, and the plant area shall be clean and free of dust. The roads in the factory area are all hardened, and the exit of the factory area or the exit of the automobile transportation material yard is equipped with high-pressure cleaning devices. See Annex 2 for specific requirements.

(3) Clean transportation transformation. Railway or waterway shall be preferred for medium and long distance transportation; belt corridor or new energy vehicles shall be preferred for short distance transportation; belt corridor or closed screw conveyor and other closed equipment shall be preferred for in-plant material transfer, so as to reduce the amount of secondary transportation and automobile transportation of in-plant materials. The proportion of clean transportation of raw materials and fuels entering and leaving enterprises by railway, waterway, pipeline, tubular belt conveyor and belt corridor is not less than 80%, and the proportion of clean transportation of raw materials and fuels is less than 80%, which is replaced by new energy vehicles (by the end of 2025, the proportion of new energy vehicles is not less than 60%). All other raw materials and fuels are transported by vehicles with new energy or national six emission standards. Clean transportation is preferred for product transportation, and all vehicles with new energy or national six emission standards are used for automobile transportation. New energy vehicles are used for in-plant transportation (vehicles with the sixth national emission standard can be used by the end of 2025). In principle, non-road mobile machinery uses new energy, and those without corresponding products meet the fourth and above national emission standards (by the end of 2025, non-road mobile machinery can adopt the third national emission standards). Clean transportation methods are encouraged in mining and transportation links, and new energy sources, vehicles with higher emission stages or off-road mobile machinery are used.

In order to accelerate the realization of the "double carbon target" and actively promote the green and high-quality development of the industry, China Cement Network will hold the "2025 China Cement Double Carbon Conference and the 13th Energy Conservation and Environmental Protection Technology Exchange Conference" on May 27-28, 2025. At the same time, the release ceremony of "2025 ESG Ranking List of Cement Industry" was held . This conference will bring together industry elites and multi-resources to provide all-round support for the industry in terms of technology, policy landing and resource docking.