NEWS CENTER

Cement emission standards will be introduced to double the pressure of production line transformation


Release time:

Mar 25,2013

At present, the air pollutant emission standards and special emission limits for the thermal power and steel industries have been issued, and the "Cement Industry Air Pollutant Emission Standards" (including special emission limits) has been solicited for the first time. According to the survey data of the Chinese Academy of Environmental Sciences and Hefei Cement Design and Research Institute, the drafters of the standard, the cost of upgrading the existing cement production line is about 17 billion yuan. If the annual output of 2 billion tons of cement calculation, the national cement industry environmental protection facilities operating costs will reach 24 billion yuan to 30 billion yuan. During the investigation of the main air pollutants emitted from the cement production process-smoke (powder) dust,

At present, the air pollutant emission standards and special emission limits for the thermal power and steel industries have been issued, and the "Cement Industry Air Pollutant Emission Standards" (including special emission limits) has been solicited for the first time. According to the survey data of the Chinese Academy of Environmental Sciences and Hefei Cement Design and Research Institute, the drafters of the standard, the cost of upgrading the existing cement production line is about 17 billion yuan. If the annual output of 2 billion tons of cement calculation, the national cement industry environmental protection facilities operating costs will reach 24 billion yuan to 30 billion yuan. In the process of investigating the main air pollutants emitted from the cement production process-smoke (powder) dust, a total of 160 valid samples were recovered. The data show that compared with the sample survey of the standard prepared in 2003 (that is, the current standard), the concentration of particulate matter in cement kilns has decreased significantly, from an average of 100.9mg/m3 to the current average of 27.4mg/m3, which is close to the emission level in Europe. "The vast majority of cement kilns (about 95%) meet the current standard of 50mg/m3. It can be seen that with the progress of dust removal technology, the emission standards have been tightened. 60% of the cement kiln particulate emissions are controlled below 30mg/m3, and even 32% of the cement kilns are below 20mg/m3. According to this, this standard revision will tighten the emission concentration of particulate matter from cement kilns from 50mg/m3 to 30mg/m3, reaching the average standard or license limit level of European countries. However, cement enterprises in key areas are required to further control to below 20mg/m3.