The Design And Research Of Pulverizedcoal Manufacturing Process In Coal-fired Power Plants

Thermal power enterprises occupy larger share in the traditional energy industry,with the deepening reform of coal marriage in recent years,in the depth of the energy revolution and modern digital revolution fusion situation,appears to be close to sunset industry thermal power of the energy industry in pulverized coal pillar industry of the manufacturing process as the main process of coal-fired power plant fuel,its efficiency is directly related to the overall combustion boiler efficiency,thus affecting power plant safe and economic operation,therefore,further study of pulverized coal production manufacturing process optimization system,design a set of more stable and efficient A reliable pulverizing system is of great necessity and has far-reaching significance for thermal power enterprises to continue to develop in the future energy industry.This paper in the subject background of coal-fired power plant coal pulverizing process,from the manufacturing process of the whole process flow and pulverized coal pulverizing equipment characteristics and working principle of building in coal mill as the main body,coal feeder relies on a fan and auxiliary system of pulverized coal pulverizing system based on functional requirements analysis,manufacturing process control based on the principle of safe and reliable efficient practical and advanced,the working principle of ball mill as a key analysis emphasizes on six control quantity of ball mills and the matching between six charged amount of mathematical model,to research foundation,in turn,mill outlet temperature control method is established Coal mill position control methods of coal mill load capacity of the wind mill and total air volume control method USES the distributed computer control technology of milling manufacturing process design,build the DCS and the industrial Ethernet control system,has carried on the overall design of system,studied the system hardware and software configuration and choose,finally formed a set of feasible advanced control scheme was partly due to its superior performance,strong anti-interference ability of the system as a whole;On the other hand,its Sinicization ability is more conducive to the operation of ordinary operators and maintenance of overhaul personnel,which to some extent improves the process efficiency and simplifies the complex process.According to the characteristics and performance requirements of pulverized coal manufacturing process,DCS is adopted as the pulverized coal manufacturing process controller,and a remote I/O service system is designed to improve the reliability of the pulverized coal manufacturing process.Through the analysis of operating conditions and trends,it can be concluded that the whole pulverizing process is the result of the interaction between a cascade and a multistage control system.The outlet temperature of the coal mill,the opening degree of the cold and hot air damper and the inlet pressure are maintained in a stable range,which can improve the output of the coal mill,namely the mill load,to reduce the single consumption of equipment and improve the efficiency of pulverizing.The automation control of the pulverized coal making process is more accurate,the reliability and real-time performance of the system is good,which meets the design requirements,improves the automation level of the pulverized coal manufacturing process,and realizes the improvement of enterprise efficiency and economic benefits.