The molybdenum ore grinding and flotation automation system is a key component of modern mining production, which greatly improves the efficiency of grinding and flotation operations through automated control methods, reduces labor intensity, and ensures the stability of the production process. This article will introduce the structure, main functions, and practical application effects of the grinding and flotation automation system of a molybdenum mine in Chifeng.
The grinding and flotation automation control system of molybdenum ore adopts a workshop control mode to ensure the independent and stable operation of grinding and flotation operations. The system is divided into three levels: execution layer, control layer, and management layer.
Execution layer: including on-site instruments and actuators, such as ultrasonic level gauges, radar level gauges, pressure transmitters, electromagnetic flow meters, regulating valves, and particle size analyzers.
Control layer: mainly composed of PLC controllers, used for automatic control of grinding and flotation.
Management: Set up an engineer station and control the upper computer through INTOUCH software. The system uses Profibus DP network to connect field devices and control devices, ensuring real-time and reliable data transmission.
The grinding and flotation automation control system aims to improve the level of production automation, reduce labor intensity, and enhance the production capacity of the beneficiation plant. The main control objectives include:
Grinding automation control: Ensure that the particle size and concentration of the slurry sent to the flotation operation meet the requirements.
Flotation automation control: By controlling the dosage and flotation machine liquid level, the grade and recovery rate of flotation products are ensured, while minimizing the consumption of reagents.
The system has achieved online detection and control of the main process parameters, using a combination of on-site manual control and central control room control to ensure the safety and stability of the system.
The constant feeding system is an important component of the automation control of the grinding process, aimed at ensuring the stability of the feeding amount of the ball mill. The system solves the problem of frequency feedback and control output synchronization of the frequency converter, as well as stable switching from remote manual control to automatic control.
Frequency feedback issue of frequency converter: By recording the frequency values of the frequency converter during on-site and remote control, and adjusting them in the program, it ensures that there is no large-scale fluctuation in the ore quantity during the switching process.
Remote control switching issue: When switching from on-site control to remote control, first run in remote manual mode, and then switch to automatic control mode after the system stabilizes.
Through these measures, the constant feeding system achieved disturbance free operation during the switching process, ensuring the continuous and stable operation of the production process.
Since the system was put into operation, the molybdenum ore grinding and flotation automation control system has achieved significant results:
Improving equipment operation rate: reducing the labor intensity and quantity of on-site workers.
Stable production indicators: achieved control over the particle size and concentration of the final grinding product, providing qualified slurry for flotation operations.
Real time monitoring: Through the central control room and on-site industrial screens, workers can monitor the production process in real time, improving the transparency and management efficiency of the system.
Through these improvements, the grinding and flotation automation control system of the molybdenum mine not only improves production efficiency, but also enhances the comprehensive competitiveness and modernization level of the enterprise.
