Table 2 Structural parameters and simulation parameters of high-pressure roller mill.

Roller diameter

(mm)

Roller width(mm)

Feed particle diameter(mm)

Productivity(t/h)

1600

1400

≤ 35

1200

Simulation parameters

unit

iron ore

steel

Poisson’s ratio

.

0.27

0.30

Densities

kg/m³

4400

7850

Shear modulus

Pa

2.46 × 10⁷

1 × 10¹⁰

Contact parameter

Contact type

Coefficient of restitution

coefficient of

static friction

coefficient of kinetic friction

Ore - Ore

0.20

0.55

0.51

Ore-Steel

0.15

0.49

0.47