Raymond mill is a commonly used beneficiation equipment in concentrator, but also a high energy consumption equipment. Energy-saving design and parameter optimization design of Raymond mill are of great significance to reduce energy consumption of beneficiation and improve beneficiation efficiency.

http://www.sbmchina.com/products/raymond-mill.html mainly considers energy-saving design from starting mode, lubrication mode, bearing type, liner structure and form, and speed of Raymond mill. Raymond mill has many characteristics in energy-saving design. The equipment in production must be guaranteed to run in accordance with the design requirements.

1. Design of startup mode
Soft start-pneumatic clutch. It can start the synchronous motor-Raymond mill in stages, and it can start the motor without load. When it reaches stable running speed, it can start the Raymond mill by combining the clutch. This can shorten the starting time of the motor itself, make it easy to start, reduce the impact of starting current on the power grid, and also reduce the installed power of Raymond mill.

2. Design of hydrostatic bearing and hydrostatic bearing

(1) Before the start-up of Raymond mill, the journal is floated 0.2-0.3 mm by the high pressure of lubricating oil, which can greatly reduce the start-up load, and then start up, so that the journal and bearing bush can be completely separated from the load-bearing film supplied by the outside, which has a certain pressure. After the start-up, when the journal reaches a sufficient speed, the journal is lubricated by dynamic pressure.

(2) When the Raymond mill shuts down, let the pressure oil make the journal float and fall slowly on the bearing bush so as not to scratch the bearing bush. This ensures that the journal can start up under pure liquid friction. Small friction resistance, low power consumption and high transmission efficiency.