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.
| JKB、2JKB Technical Parameters Explosion-proof Single-Rope Winding Hoist | |||||||||||
| Model | Drum | Max Static Tension |
Max Static Tension Difference | Max Dia | Lifting Height or Transport Length | Lifting Speed | |||||
| unit | Dia | Width | Center distance between two drums | 1st | 2nd | 3rd | |||||
| m | mm | kN | mm | m | m/s | ||||||
| JKB-2×1.5P | 1 | 2.0 | 1.50 | - | 60 | / | 25 | 280 | 605 | 962 | 7.0 |
| JKB-2×1.8P | 1.80 | 350 | 746 | 1176 | |||||||
| JKB-2×2P | 2.00 | 390 | 826 | 1305 | |||||||
| JKB-2.5×2P | 2.5 | 2.30 | 90 | 31 | 393 | 832 | 1312 | 9.0 | |||
| JKB-2.5×2.3P | 2.30 | 463 | 974 | 1528 | |||||||
| JKB-3×2.2P | 3.0 | 2.20 | 130 | 37 | 435 | 917 | 1447 | 12.0 | |||
| JKB-3×2.5P | 2.50 | 506 | 1060 | 1664 | |||||||
| JKB-3.5×2.8P | 2.80 | 501 | 1049 | 1654 | |||||||
| 2JKB-2×1P | 2 | 2.0 | 1.00 | 1090 | 60 | 40 | 25 | 163 | 369 | 605 | 7.0 |
| 2JKB-2×1.25P | 1.25 | 1340 | 222 | 487 | 784 | ||||||
| 2JKB-2.5×1.2P | 2.5 | 1.20 | 1290 | 90 | 55 | 31 | 245 | 554 | 908 | 9.0 | |
| 2JKB-2.5×1.5P | 1.50 | 1590 | 286 | 564 | 885 | ||||||
| 2JKB-3×1.5P | 3.0 | 1.50 | 1590 | 130 | 80 | 37 | 276 | 595 | 953 | 12.0 | |
| 2JKB-3×1.8P | 1.80 | 1890 | 332 | 715 | 1145 | ||||||
| 2JKB-3.5×1.7P | 3.5 | 1.70 | 1790 | 170 | 115 | 43 | 270 | 584 | 942 | ||
| 2JKB-3.5×2.1P | 2.10 | 2190 | 341 | 727 | 1159 | ||||||
| Note 1: Max lifting speed estimated value based on nominal diameter drum and single-layer winding. Note 2: Max lifting speed shall not exceed the values specified in the table and in sections 5.2.13 to 5.2.15 of AQ 1035-2007. |
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