Henan Mengdian Group Cement Company (hereinafter referred to as "Mengdian Cement") was founded in September 2001, covering an area of 1050 mu, with fixed assets of more than 2 billion yuan and more than 1300 employees. The company has three production lines, with an annual output of 5 million tons of clinker and 6.5 million tons of cement. Its scale, quality and efficiency are among the top in the industry. In 2015, 1 billion yuan was invested to replace 5 production lines of the cement company with 2 energy conservation and environmental protection production lines, taking the lead in achieving ultra-low emissions in the whole industry. In 2018, more than 80 million yuan was invested to upgrade production line 3. At present, the comprehensive energy consumption indicators of the cement production line have all reached the advanced level.

"Precise pollution control and current monitoring." In the ultra-low emission amplification environment, effective smoke and dust emission data need reliable monitoring instruments to monitor. How to ensure the long-term operation of the soot monitoring instrument and the validity of the data has always been a common concern of the monitoring and supervision personnel. The quality of instrument maintenance and quality control directly determines the accuracy, precision, representativeness, integrity and comparability of monitoring data. The smoke and dust monitoring instrument has the characteristics of continuous operation, long maintenance period and poor working environment. The continuous particulate matter emission monitoring system SBF800 of Shanghai Beifen Technology Co., Ltd. (hereinafter referred to as "Shanghai Beifen") is adopted for the chimney outlets of 1 #, 2 #, 3 # and 4 # cement mills and the chimney outlets of coal mills of Mengdian Cement. The system adopts the principle of dilution, heating, extraction, and scattering before extraction. Aiming at the harsh working conditions of cement plants in China, the company provides solutions based on targeted design with mature technology. It is more suitable for the harsh working conditions of cement with high dust in China, accurate operation and monitoring, and ensures the effective upload rate of data.