Abstract: As the issue of energy shortage has received more and more attention from various countries, how to efficiently use energy has become the most popular topic in the industrial industry. In particular, as a country with a large population, my country is suffering from energy shortages, serious environmental pollution, low production efficiency, resulting in long-term energy waste, leading to rising energy prices, and greater pressure on the country and enterprises. With the introduction of the national energy-saving and emission-reduction policies, all The requirements for automation of production equipment in basic industries are getting higher and higher.
1. Industry characteristics:The cement industry is a typical resource-based and high-energy-consuming industry. Because the price of cement is low, freight has become an important factor restricting the scope of cement sales, so the cement market has a strong regional character. Transaction prices continue to rise. As the market has become saturated in recent years, the pressure of competition for the development of the cement industry has increased year by year. With the continuous competition of environmental and resource issues, energy conservation and efficiency enhancement, and improving the efficiency of the cement industry have become the top priority for the development of the cement industry.
1. Limestone crushing and conveying system
2. Raw meal preparation and homogenization system
3. Coal powder preparation system
4. Kiln firing system
5. Exhaust gas treatment system
6. Cement mill and conveying system
In the cement industry, PLC is mainly used to control the production equipment of the control box of the production line, such as the cement production line and the pulverizer, raw meal mill, clinker mill, converter, etc., the ball mill production line, and the ball mill that needs to be controlled on site. Head, grinding tail, bearing bush, sliding shoes and other temperature, batching warehouse and cement warehouse material level, sensors and other devices, production process automation control includes sequence control and process control. Sequential control is mainly to realize the group start, stop and mutual interlocking of the motors and electronic control equipment that enter the PLC in the whole plant; the process control mainly realizes the temperature, pressure, speed, flow, and flow rate of the whole plant entering the PLC. Process parameters such as material level are collected, and the production process is adjusted and controlled by adjusting valve opening and speed setting.
The cement production process equipment has a large single machine capacity, strong production continuity, and high requirements for rapidity and coordination. In order to improve the production efficiency and competitiveness of enterprises, the automation of the production process has occupied a pivotal position in the development of the modern cement industry. The combination of Siemens S7-300 host and OYES-300 series I/O modules can well meet the control requirements of the cement industry, which is based on switching values, supplemented by analog values, and accompanied by a small amount of control loops. It not only effectively guarantees This improves the efficiency and stability of production, greatly improves the quality of cement products, reduces energy consumption and production costs, and at the same time increases the labor productivity of all employees.
Conclusion:The OYES-300 series PLC is used in the production of cement equipment, with stable and reliable control, extremely high reliability and cost-effectiveness, which helps cement equipment manufacturers to save costs and enhance their market competitiveness.
Longkou Libo Insulating Material Co.,Ltd. , https://www.liboinsulation.com