On September 8, Fangcheng Wanbei Cement (Group) Co., Ltd. (Hereinafter referred to as Wanbei Cement) held the commencement ceremony of the ultra-low emission transformation project of "high temperature and low dust SCR dust and nitrate integration" in Wanbei Cement Plant. Li Tuo, general manager of the company, Jia Shiyou, deputy general manager, and Zhang Zhenfeng, assistant general manager of Fujian yuanzhi Environmental Protection Technology Co., Ltd., the general contractor of the project, attended the opening ceremony. Li Tuo
, general manager
of Wanbei Cement, said that Wanbei Cement's "high temperature and low dust SCR dust and nitrate integration" project adopted the international advanced SCR denitrification technology, combined with the innovative technology of high temperature and low dust. By installing a high-temperature metal bag filter in front of the SCR reactor, the dust concentration is reduced to less than 10mg/Nm ³, which effectively solves the problem of large dust content in the flue gas at the tail of the cement furnace, and the clean gas enters the catalyst reaction layer to ensure that the catalyst operates in a high-temperature micro-dust state, thus realizing the integrated continuous removal of dust and nitrate. Ffectively solves the problems of uneven ammonia nitrogen mixing, excessive ammonia escape, serious flue ash deposition, uneven flue gas flow rate of a catalyst layer, catalyst blockage, poisoning, serious abrasion and the like. The application of this
technology will make the emission concentration of nitrogen oxides in Wanbei cement clinker production line stable and lower than 50mg/Nm ³, reaching the A-level standard of environmental protection performance, providing a strong technical guarantee for the realization of green production and clean production. The project will strictly implement the national and local environmental protection laws and regulations, ensure the quality of the project, control the progress of the project, and strive to build the SCR ultra-low emission transformation project of Wanbei Cement Clinker Production Line into a benchmark project in Henan.
In addition, Wanbei Cement will actively respond to the national call for carbon peak and carbon neutralization, and promote the transformation of enterprises to green and low-carbon through technological innovation and industrial upgrading. At the same time, by optimizing the industrial structure, promoting energy-saving transformation, and implementing the substitution of raw materials and fuels, we can reduce the generation of pollutants from the source, reduce the initial concentration of pollutants and the pressure of end treatment, and coordinate the control of carbon dioxide emissions.
The data show that the core advantages of the "high temperature and low dust SCR dust and nitrate integration technology" lie in three aspects: long-term safe and stable operation, ultra-low emission, and low comprehensive operation cost. Specifically, it includes:
1. Initiating the high temperature and low dust process
and creatively upgrading the traditional "high temperature and high dust" SCR denitrification process to "high temperature and low dust" process for the first time.
2. For the first time, the metal membrane filter material
with high efficiency and low resistance is developed and applied to the high-temperature flue gas dust removal at the cement kiln tail (the flue gas temperature is higher than 300 ℃).
3. The innovative equipment structure
combines the high-temperature bag filter and the SCR denitration device for the first time, which realizes the continuous removal of smoke and nitrogen oxides in the integrated equipment and saves the installation space. And
4, that service life of the metal filt bag is long, the service life of recyclable
metal machinery is 8 to 10 years, the metal filt bag has recycling value after the service life of the metal filter bag expire, and no solid waste or hazardous waste treatment cost exists. And
5, that use amount of the catalyst is reduce by 60%
, and the using amount of the catalyst is 1/3 of that of high-temperature high-dust and high-temperature medium-dust, so that the installation space is save, the equipment investment cost is reduced, and the later solid waste disposal cost is reduced. And
6, that service life of the catalyst is prolon by one time
, the denitration is carried out unde the working condition of tiny dust, the denitration efficiency of the catalyst is high, the service life is long, soot blowing is not needed, the mechanical service life is 10 year, and the chemical service life is more than 5 years. The commencement ceremony of the
project was presided over by Jia Shiyou, deputy general manager of Wanbei Cement. Jia Shiyou said that the implementation of the project marks another solid step on the road of environmental protection and technological innovation of Wanbei Cement, which will have a significant and far-reaching impact on the transformation, upgrading and green development of the company.
Wanbei Cement "High Temperature and Low Dust SCR Dust and Nitrate Integration" Ultra-low Emission Renovation Project Starts
About Wanbei Cement:
Fangcheng Wanbei Cement (Group) Co., Ltd. is a famous low-alkali cement manufacturer in China.
Wanbei Cement has excellent mine resources and advanced production technology, and has obvious advantages in the development of low-alkali cement. At present, Wanbei Cement can not only produce ordinary Portland cement and low-alkali cement, but also successfully develop special cement such as medium and low heat slag Portland cement and oil well cement. With superior quality and considerate service,
"Wanbei Brand" cement products are widely used in large-scale national projects such as South-to-North Water Transfer Project, Nanzhao Tianchi Pumped Storage Power Station, Zhengzhou-Wanzhou high-speed rail, Zhengzhou-Fuzhou high-speed rail, Pingluo Zhou high-speed rail, Xinyang Minggang Airport, Zhounan Expressway, Jiaotang Expressway and Xuxin Expressway.
