Choosing the right mining grinding mill requires comprehensive consideration of factors such as material properties, process requirements, equipment performance, and economic efficiency. Specifically, consider the following:

 

1. Clarify Grinding Requirements

 

Material Properties

 

Hardness and Particle Size: For high-hardness materials (such as quartz), use a wear-resistant liner or high-energy ball mill. For coarse grinding (48-65 mesh), use a grate type mill, while for fine grinding (200 mesh and above), use an overflow type mill.

 

Moisture Sensitivity: Dry mills are suitable for moisture-sensitive materials. Wet grinding mills are suitable for most mineral processing plants.

 

Process Stages

 

First-stage grinding: Grate type with forced discharge, high throughput, and minimal over-crushing.

 

Second-stage grinding: Overflow type with higher grinding fineness, suitable for fine grinding.

 

II. Equipment Selection

 

Ball Mill

 

Grate type: Suitable for coarse grinding, with a throughput of 0.17-170 t/h.

 

Overflow type: Suitable for fine grinding, with a simple structure and lower price.

 

Conical type: Finer grinding, capable of Lower energy consumption, suitable for demanding applications.

Other Mills

Rod Mill: For coarse grinding of brittle materials (such as quartz sand)

Vertical Mill: Suitable for large-scale grinding, with low energy consumption but higher investment.

III. Key Parameter Matching

 

Processing Capacity

Small mills can choose a 1200*1200 φ grate mill (processing capacity 0.17-4.1 t/d). Large mills require custom models with a capacity of 200 t/h or more.

 

Energy Consumption and Efficiency

 

Energy-saving equipment uses double-row roller bearings and corrugated liners, saving 20%-30%.

 

Maintenance Costs

 

Hydraulic jacking devices (such as wet grate mills) simplify maintenance and reduce costs.

 

IV. Economy and Configuration

 

Price Range

 

Small ball mills (such as 1200*1200 φ) range from a few thousand US dollars to large industrial machines costing up to millions of US dollars.

 

Additional Configurations

 

Slow-speed gears and hydrostatic and hydrostatic bearings can improve stability but increase costs.