Ring Roller Mill
Suitable for applications requiring large milling capacity and high production efficiency
Suitable for applications requiring large milling capacity and high production efficiency
- Offer a unique combination of high yield and improved production efficiency compared to Raymond mills and jet mills.
- With excellent particle size distribution, the complete set of equipment is easy to install with no need for large-scale civil engineering.
- All fine powder can be recycled without polluting the environment and with dust removal that meets industrial emission standards.
- ALPA's Ring Roller Mill is widely renowned for its ability to process a variety of materials, including calcium carbonate (calcite, marble, limestone, chalk), barite, kaolinite, dolomite, magnesite and alumina. It has also proven successful in superfine cement and steel slag industry.
- Particle size range: D50: 1.5 - 45 μm.
The Ring Roller Mill uses a main shaft that rotates to drive a rotor frame. An auxiliary shaft is arranged on the rotor frame, and grinding discs are attached to this auxiliary shaft. As the main shaft rotates, it causes the grinding discs to not only revolve around its axis but also rotate around their respective auxiliary shafts.
This generates a strong centrifugal force which has an intense rolling action with discstatic disc of the Ring Roller Mill. The ground material is then forced into the chamber between the static disc and grinding disc where they are ground under great pressure, before being thrown by a material throwing disc onto a shunt ring located between the machine body and static disc. Here, it is classified according to size with fine powder entering into collection system while coarse particles fall back into grinding chamber for re-grinding.
| Parameter | RLM89 | RLM189 | RLM219 |
| Production capacity for D97:28μm (kg/h) | 4500~5000 | ||
| Production capacity for D97:18μm (kg/h) | 2500~2800 | 3500~4200 | 3500~4200 |
| Production capacity for D97:10μm (kg/h) | 1500~1800 | 2000~2500 | 2000~2500 |
| Production capacity for D97:9μm (kg/h) | 1000~1300 | 1500~2000 | 1600~2100 |
| Production capacity for D97:7.8μm (kg/h) | 650~750 | 1000~1500 | 1100~1600 |
| Production capacity for D97:5.5μm (kg/h) | 600~650 | 800~1200 | 900~1300 |
| Power (kW) | 152 | 237 | 237 |
Note: The particle size, specific gravity, hardness, and moisture of raw materials are all closely associated to the production capacity. These parameters should only be used as a reference; for more detailed information please consult our engineers.
