Scope of renovation: 1 set of vertical mill loading oil station+accumulator valve group+electric control cabinet

Reason for renovation: The system does not maintain pressure, with one pump supplying four rolls and a small flow rate. The roller lifting speed is slow by about 130 seconds, making it difficult to unload quickly. When the system stops, there is strong grinding vibration, and the accumulator capacity is small and insufficient for buffering.

Effect after renovation: Two pumps supply four rollers, with a lifting time of 30 seconds. The roller is quickly unloaded within 3 seconds and reaches 0MPa. The grinding vibration amplitude is significantly reduced, and the pressure fluctuates within 1MPa. The system maintains normal pressure.

Photos before renovation:

Photos after renovation: