Extrusion Briquetting Press Strength Adjustment
1. Hydraulic Pressure Adjustment
The core adjustment method is the hydraulic system pressure (typically 50-300MPa):
Pressure Settings by Material
- Metal chips: 150-200MPa for proper density
- Biomass materials: 50-100MPa to avoid over-crushing
- Adjustment steps: Max 20MPa increments to protect molds
- Safety note: Never exceed rated pressure of equipment
2. Material Pretreatment
Moisture content must be controlled (10%-20%):
Particle size should be uniform (≤5mm recommended)
For low-plasticity materials (coal powder, mineral powder), add binders (0.5%-3% starch/resin) to improve cohesion.
3. Mold Structure Adjustment
Select aperture size (8-50mm):
Smaller apertures increase density but reduce production capacity
Set proper compression ratio:
Metals: 3:1-5:1 | Biomass: 2:1-3:1
Improper ratios cause either discharge difficulty or insufficient strength
4. Verification Testing
Required tests after adjustment:
Compressive strength: ≥10MPa (metal) | ≥2MPa (biomass)
Drop test: ≤5% breakage after 1.5m free fall
Sample hourly during production to maintain consistency
Operation Note: After parameter changes, run 3-5 empty cycles before feeding. When changing materials, thoroughly clean residual matter to prevent cross-contamination.
Precise multi-parameter coordination ensures optimal briquette strength for various materials.
