Screw conveyor Material Adaptation Principle (Primary Principle)
Material form: Applicable only to powdery, granular and small-block materials. It is strictly prohibited to convey materials with high viscosity, easy caking or winding properties (e.g., cloth strips, fibers).
Physical properties: Selection based on material bulk density, abrasiveness, corrosiveness and temperature:
Highly abrasive materials (e.g., ore, quartz sand): Thickened wear-resistant blades and liners shall be adopted;
Corrosive materials (e.g., chemical powder): Stainless steel 304/316L shall be adopted;
High-temperature materials (> 200 ℃): High-temperature resistant materials and water-cooled bearing housings shall be adopted.
Filling coefficient: ψ = 0.25~0.5 for horizontal conveying, reduced for inclined conveying; overfilling causing stall is strictly prohibited.
Specification of screw conveyor:
| Type | Diameter
(mm) |
screw distance (mm) | Speed (r/min) | Qty (m³/h) | Power (kW) | Length (m) |
| LS100 | 100 | 100 | 140 | 7.6 | 1.5~2.2 | ≤15 |
| LS160 | 160 | 160 | 120 | 22 | 2.2~4 | ≤20 |
| LS200 | 200 | 200 | 90 | 36.4 | 3~5.5 | ≤25 |
| LS250 | 250 | 250 | 90 | 66.1 | 5.5~7.5 | ≤30 |
| LS315 | 315 | 315 | 75 | 93.1 | 7.5~11 | ≤35 |
| LS400 | 400 | 355 | 75 | 160 | 11~15 | ≤40 |
| LS500 | 500 | 400 | 60 | 228 | 15~22 | ≤45 |
| LS630 | 630 | 450 | 60 | 320 | 22~30 | ≤50 |
| LS800 | 800 | 500 | 45 | 458 | 30~45 | ≤50 |
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