In recent years, with the rapid growth of China's economy, the contradiction between economic development and resources and environment has become increasingly acute, and it is urgent to measure and control the total emission indexes of SO2, O2 and COD of industrial boilers. Tangshan mining company, as the main production mine, should not only provide support and guarantee for the completion of various indexes of the group company, but also realize its own scientific development. As the only production mine located in the urban area in China, it is very important to control the discharge of various pollutants. Company profile of 1 Our company is one of the large-scale specialized mines owned by Kailuan (Group). Its predecessor was Tangshan Mine of Kailuan Mining Bureau, founded in 1878, which was the source of modern coal mining industry in Chinese mainland. There are three industrial relics: one is the No.1 well of Tangshan Mine, which was dug in February 1879; Second, the first standard gauge railway in China, 188 1. In August, the mine officially produced coal, and the coal output in that year was 36 13 tons. At the end of the same year, the Tangshan-Xugezhuang Railway was completed, which was the first standard railway built in China. Third, a hundred years of Taoism. 1899, a north-south tunnel-type bridge opening, was dug from well 1 to the northwest well, which is commendable. The three industrial sites are still in service, so Tangshan Mine has won the reputation of "the best mine in China". Although it has experienced the evolution and development of 130 years, it is still full of vitality. 2. Establish and improve the online monitoring system according to the company's exhaust gas and wastewater discharge. At present, the ground pollutants of our company mainly include waste gas and waste water, among which the waste gas mainly includes SO2 and other pollutants generated during the combustion of boilers in the central boiler room and boiler room of Well 10, and the annual emission is about 1 12 tons; The wastewater is mainly mine water pumped from underground to the ground, and the main pollutant is COD, with an average concentration of 80 mg/L. In order to realize the scientific and information management of each sewage outlet of our company and grasp the data of pollutant treatment in time, our company installed online monitoring equipment in three locations. Among them, the central boiler room and the wind well boiler room are respectively provided with online monitoring devices for flue gas reaching the standard, and the online monitoring devices of the central boiler room are networked with the Municipal Environmental Protection Bureau; The sewage treatment plant of coal preparation plant has installed an online COD monitoring device to monitor the sewage reaching the standard, and it is networked with the group company for management. 3. On-line monitoring system for flue gas based on the monitoring data of the on-line monitoring system to ensure that pollutants meet the discharge standards (1). According to our company's flue gas emission, our company chooses SCS-900C CEMS online automatic monitoring system with advanced technology and simple maintenance. The monitoring principle and performance of the equipment meet the Technical Specification for Continuous Monitoring of Flue Gas Emission from Stationary Pollution Sources. The system continuously and automatically monitors the concentrations of particulate matter, gaseous pollutants and total pollutant emissions from solid pollution sources, and analyzes SO2 and O2 in boilers by direct extraction heating method. The monitoring data and information will be transmitted to the competent department of environmental protection to ensure that the pollutant concentration and total discharge amount of the pollutant discharge enterprises meet the standards. At the same time, various related environmental protection devices, such as desulfurization and dust removal devices, also rely on the on-line monitoring data of flue gas for monitoring and management, thus improving the efficiency of environmental protection facilities. After installing the on-line monitoring system for flue gas in the boiler room of the company, our department can grasp the accurate data of waste gas pollutant emission at any time through the network, and compare it regularly every day according to the data stored in the on-line monitoring system, which can effectively control the pollutant emission of our company and reduce the total pollutant emission. (2) Online water quality monitoring system. According to the water quality of our company, our company chooses EST-2001B online automatic CODcr monitor produced by Guangzhou Wen Yi Science and Technology Co., Ltd. The automatic monitoring system adopts the design idea of modular instrument, intelligent module and networked system, and determines the COD concentration in water samples according to the national standard method, and uses potassium dichromate digestion+ammonium ferrous sulfate titration method to monitor the COD in sewage. In order to pay off the water quality of Douhe River and make the discharged mine water meet the national standards, our company installed an online water quality monitoring system in the sewage treatment plant according to the requirements of Tangshan Environmental Protection Bureau to monitor the COD concentration in our mine water. After networking, the monitoring equipment will have automatic alarm function in the case of failure, power failure, insufficient reagent inventory, no sample, no washing water and abnormal value exceeding the standard. , so that our company can take timely preventive and emergency measures to ensure that the company's pollutants meet the standards. 4. Take the improvement of the system as the core, and promote the steady progress of the company's energy conservation and environmental protection work (1) Improve the system. According to the spirit of the document "Management Measures for Installation and Operation of Online Monitoring System for Key Pollution Sources in Tangshan City", in order to clarify the responsibilities of relevant units using online monitoring system in our company, our department has formulated the Online Monitoring Equipment Management System and the Online Monitoring Equipment Assessment System to further improve our online monitoring work. In order to ensure the long-term stable operation of the online monitoring system, our company has signed a series of maintenance and management contracts with Lvchuang Environmental Protection Company, such as the maintenance and repair contract of online monitoring equipment for flue gas in boiler room of Well B 10, the maintenance and repair contract of online monitoring equipment for COD and the entrusted management contract of online automatic monitoring instrument for COD. It ensures that the emission of particulate pollutants in the boiler of our company reaches the national standard, and the concentration of COD in the external drainage reaches the national standard. Our company strictly implements the unified requirements of Tangshan Environmental Protection Bureau. In order to fully realize the third-party operation, our company signed a third-party operation contract with Tangshan Lvchuang Environmental Protection Co., Ltd. for the online monitoring equipment and facilities of the central boiler room. According to the contract, the company will maintain and operate our online monitoring facilities in time according to the technical requirements and specifications, ensure the stable and reliable operation of our online monitoring facilities, and correctly transmit the correct data of pollutants to Tangshan Environmental Protection Bureau. (2) Daily management. In order to ensure the normal operation of monitoring equipment, our department has formulated a daily inspection system and established an inspection account. According to the on-site inspection arrangement, a group of people will go to each site every day to check the operation of equipment and facilities and the discharge of sewage and flue gas up to standard, and summarize the inspection information into the account. If there are special circumstances, report to the leader in time to ensure that the problems found on site can be solved in time and that the pollutants of the company meet the standards. 5 project implementation effect. Since the beginning of this year, due to the operation of the online monitoring system for pollutants, the wastewater and waste gas emission index of our company has always been kept at a low level, which has been well received in various inspections by superior departments such as the Environmental Protection Bureau, the Urban Management Bureau and the Environmental Protection Office of the Group Company. Popularizing the automatic monitoring system of pollution sources is not only for us to conveniently obtain relevant pollutant data, but more importantly, we can use this advanced management technology to monitor the pollutants in our company in real time and take preventive and emergency measures in time, so as to ensure that our company's pollutants meet the standards and protect our image from environmental damage.
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd