I.T Explosion-proof Axial Flow Fan 11kw Coal Mine Local Fan Model Interpretation
YBT: Y – Explosion-proof motor, B – Explosion-proof type, T – Axial flow ventilation; FBY is the current new code (replacing the old YBT)
Example: YBT41-5.5
4: Impeller diameter 400mm (4 decimeters); 1 = Single-stage impeller, 2 = Double-stage impeller; 5.5 = Motor power 5.5kW
Explosion-proof mark: ExdⅠ (Special explosion-proof for coal mine underground), follows national standards GB3836 and MT222 for mine fans
II. YBT Explosion-proof Axial Flow Fan 11kw Coal Mine Local Fan Applicable Working Conditions
Core purpose: Local ventilation in coal mine underground excavation tunnels, extracting gas and coal dust; for metal mines, chemical mines, tunnels, and explosion-proof factories for oil and gas, air exchange
Operating conditions: Medium ≤ 40℃, air humidity ≤ 95% (25℃), altitude < 1000m, presence of methane/metal dust explosive gas environment, no strong corrosive gas
Power supply: 380V/660V 50Hz (coal mine dual voltage universal)
III. YBT Explosion-proof Axial Flow Fan 11kw Coal Mine Local Fan Common Specifications and Parameters (Main power)
Table
Model Power (kW) Blade Diameter Air Volume (m³/min) Total Pressure (Pa) Blade Structure
YBT32-2.2 2.2 315mm 55-101 500-1100 Two-stage
YBT41-5.5 5.5 400mm 105-165 800-1400 Single-stage
YBT52-11 11 500mm 145-225 1200-2400 Two-stage
YBT62-28 28 600mm 250-390 700-3200 Two-stage
Maximum YBT-30 30 630mm 300-450 1000-3700 Two-stage
IV. Structure Characteristics of YBT Explosion-proof Axial Fan for Coal Mine Local Ventilation
Integrated Structure: Explosion-proof motor + Blade directly connected coaxially, no transmission belt, low failure rate; Carbon steel air duct, aluminum blade, thickened explosion-proof shell
Two-stage blade models have higher pressure and are suitable for long-distance tunnel air supply; Single-stage has large air volume and lower pressure, suitable for short tunnels
Equipped with rubber air duct for pressure-injection air supply, the entire machine is explosion-proof sealed, preventing electric sparks from igniting methane
V. Model Selection
Single-stage (YBT×1): High air volume, low pressure, short tunnels < 300m
Two-stage (YBT×2): High pressure, medium to large air volume, long blind tunnels 300-800m for tunneling ventilation
Would you like me to help you select the power precisely based on the tunnel length and air volume requirements? YBT explosion-proof axial fan for coal mine local ventilation, 11kw
