JKB/2JKB Explosion proof Mine Hoist,   Explosion proof Variable Frequency , Underground Hoist

JKB/2JKB single rope winding flameproof mine hoists are applicable for continuous material lifting and lowering with a load capacity of 6~17 tons.They are primarily used in explosive hazardous industrial environments, for surface hoisting of coal, ore and gangue in shallow and medium depth coal mines, metal mines and non metal mines. They also serve for personnel transport as well as material, tool and equipment conveyance.

Working Principle and Technical Advantages:

Intelligent Control Process:This machine adopts a "speed torque position" triple closed loop control system

Speed Loop: Real time feedback via flameproof encoders achieves a speed accuracy of ±0.5%.

Torque Loop: Adaptive torque control based on load monitoring.

Position Loop: Redundant positioning with dual encoders ensures a stopping accuracy of ±20mm.

Safety Protection System: 8 stage anti fall protection mechanism, emergency brake response time ≤ 0.3s, flameproof emergency stop devices covering entire working area, utomatic fault diagnosis early warning system.

Key Technical Parameters: Max lift speed: 8m/s   Duty cycle: S5 40% ED   Protection class: IP65  

Temp.: -20°C ~ +40°C   Ex mark: Ex d I Mb.

Safety Performance: Certified with the National Mine Safety Mark, compliant with GB/T 20961 Safety Standard for Mine Hoists, and equipped with a built in gas concentration linked protection system.

Energy Efficiency: Energy consumption is reduced by 25% compared to traditional hoists, supporting 24 hour continuous operation.

Maintenance Convenience: Modular design cuts average maintenance time by 40%, with a service life early warning function for key components.

Typical Application Scenarios: Main and auxiliary shaft hoisting in underground coal mines, Deep mining in metal mines, Hazardous material transportation, Mine emergency rescue systems.