Chain System Calculator — cementequipment.org

Chain System Calculator

Design and evaluate chain sections for rotary cement kilns

Kiln Geometry & Chain Zone

Kiln Inner Diameter D (m)Inside refractory

Kiln Length L (m)Total kiln length

Chain Zone Length (m)Typical: 20-35% of kiln length

Kiln Slope (%)Typical: 2.5-4%

Chain Type

Chain Density (m²/m³)Garland: 25-40, Curtain: 15-25, Cross: 10-18

Curtain Spacing (m)Distance between curtain rows: 0.3-0.6m

Specific Area (m²/kg chain)Typical: 0.05-0.12 m²/kg

Inlet Gas Temp (°C)Gas entering chain zone from kiln

Outlet Gas Temp (°C)Gas leaving chain zone

Material Inlet Temp (°C)Feed temp at chain zone entry

Material Outlet Temp (°C)Material temp at chain zone exit

Effective U (W/m²·K)Overall effective: 3-15 W/m²K

Gas Velocity (m/s)At chain zone conditions, typical: 8-18

Gas Density (kg/m³)At chain zone average temp (~0.35-0.55)