In the past 10 years, many customers have chosen HPGRs for primary grinding ahead of ball mills where they would have traditionally used SAG mills. Ore complexity, ore hardness, rising electrical costs and the need to stabilize the downstream process are just some of the reasons that more mine owners are choosing HPGRs. These enormous economic and sustainability benefits have driven a significant increase in the number of HPGRs deployed in comminution circuits across the globe.
CLM series HPGR is a kind of grinding equipment designed based on the principle of material bed comminution, mainly composed of a frame, roller assembly, hydraulic system, feeding device, control systems, drive system and so on. CLM series HPGRs deliver high process capacity, low energy consumption, low maintenance requirements, and high availability, perfectly satisfying our mining customers' needs to process higher volumes of ore at the lowest operational cost.
| Series | Roller Diameter | Roller Width | Throughput | Max. Feed Size | Main Motor Power |
|---|---|---|---|---|---|
|
CLM120
|
1200mm | 500-800 mm | 200-400 t/h | ≤30 mm | 2x250-2x400 kW |
|
CLM150
|
1500mm | 600-1200 mm | 400-900 t/h | ≤35 mm | 2x450-2x900 kW |
|
CLM170
|
1700mm | 700-1400 mm | 650-1300 t/h | ≤40 mm | 2x630-2x1250 kW |
|
CLM200
|
2000mm | 800-1400 mm | 900-2300 t/h | ≤50 mm | 2x1000-2x2240 kW |
|
CLM240
|
2400mm | 1000-1700 mm | 2000-4000 t/h | ≤60 mm | 2x1800-2x3150 kW |
|
CLM260
|
2600mm | 1200-1800 mm | 2700-5000 t/h | ≤65 mm | 2x2500-2x4000 kW |
|
CLM300
|
3000mm | 1400-2200 mm | 4300-7200 t/h | ≤75 mm | 2x3550-2x6300 kW |
| * The above technical parameters are obtained by taking the iron ore (true density of 3.3 t/m³, and medium hardness) as an example, only for reference for model selection. The specific selection parameters shall be based on the experimental data, and will be provided after design of the process plan. | |||||
LEE JUN adopts the open-combined frame and side pull system for the HPGR maintenance. The roller assemblies are maintained by the rail+maintenance trolley+winch system, greatly simplifying the maintenance of the roller assembly of large HPGR, saving the maintenance time, and reducing the investments in maintenance equipment and infrastructure.
With German brand OEM auxiliary components as the core, LEE JUN has independently designed and manufactured the hydraulic system based on the concept of "constant roller gap control within a certain pressure range", minimizing the tripping caused by the roller gap difference out of tolerance, which is more efficient and reliable.
The hydraulic system cooperates with the automatic control system, achieving the control over the gap deviation between two rollers and the automatic skewing correction.
- Self-perception - Real-time monitoring of equipment operation and dynamic data analysis
- Self-adaptation - The equipment itself is able to adjust its running state at any time to adapt to the properties of ore materials
- Self-learning - Learn to establish the comparative analysis model of roller surface studs and to formulate the specific maintenance measures
- Self-decision-making - Automatically control the process parameters of equipment and system, and make correct and timely equipment operation decisions
- Unique dedicated sliding bearing - longer service life and suitable for large HPGR
- The sliding bearing is lubricated with oil - Good cooling effect, sufficient lubrication, strong self-cleaning ability, and capability of taking away the fine powder produced by wear
- Convenient maintenance – no need bearing shoe grinding, less wearing parts which can be replaced without dismantling the frame and gearbox