KHP belt conveyor protection device mining explosion-proof comprehensive protection system

Description :

  The KHP belt conveyor protection device is a comprehensive safety monitoring and protection system designed specifically for underground belt conveyor systems in coal mines and non coal mines. The core of this device is to solve the safety accidents and equipment damage caused by faults such as deviation, slippage, coal stacking, tearing, and overspeed during long-distance belt transportation. Typical working conditions are suitable for harsh environments with gas and coal dust explosion hazards. By collecting real-time data on the operation status of the conveyor, the KHP belt conveyor protection device can cut off the control circuit and sound and light alarms in milliseconds, effectively preventing accidents from escalating and ensuring personnel safety and production continuity. It is an indispensable key security component of modern mine auxiliary transportation systems.

  The KHP belt conveyor protection device is manufactured strictly in accordance with MT/T 1078-2008 "General Technical Conditions for Mining Belt Conveyor Protection Devices" and GB 3836 series explosion-proof standards. The shell adopts high-strength cast aluminum or steel plate welding structure, and the surface is treated with anti-corrosion, with a protection level of IP54 or above, suitable for humid and dusty underground environments. The internal circuit adopts intrinsic safety or explosion-proof and intrinsic safety design, and the working voltage is usually AC127V or DC24V. The signal transmission supports RS485 bus or CAN bus communication. The sensor interface is rich and can be connected to various sensors such as speed, temperature, smoke, deviation, rope pulling, and coal stacking. The KHP belt conveyor protection device has a self checking function to ensure accurate and reliable data at each monitoring point, meeting the strict requirements of mining safety regulations for monitoring systems.

  When selecting a KHP belt conveyor protection device, it is necessary to clarify the length, belt speed, driving mode, and specific protection requirements of the conveyor. This device is suitable for fixed strong belt conveyors, main shaft lifting belts, and mining area groove belts, and is not suitable for outdoor light conveyor belts without explosion-proof requirements. Compared with ordinary PLC control boxes, the KHP belt conveyor protection device integrates specialized protection logic algorithms, which can achieve standardized protection functions without additional programming, and has explosion-proof certification, which cannot be replaced by ordinary industrial controllers. When purchasing, it is necessary to confirm whether the sensor type matches the on-site installation conditions, such as whether the deviation switch is two-stage or single-stage, and whether the speed sensor is magneto electric or Hall type, to ensure seamless connection between the KHP belt conveyor protection device and the on-site equipment.

  When installing the KHP belt conveyor protection device, it should be ensured that the main machine is firmly fixed and the sensor position complies with the "Coal Mine Safety Regulations". For example, the coal stacking sensor should be installed in front of the unloading drum, and the deviation switch should be arranged at regular intervals along both sides of the belt. Daily maintenance requires regular cleaning of sensor probe coal deposits, checking of junction box sealing to prevent water and moisture ingress, and conducting a simulated fault test once a month to verify the sensitivity and reliability of protective actions. Common faults include sensor signal interruption, communication interference, etc., which can be quickly located by viewing the fault code on the host display screen. Before resuming operation after long-term disuse, a comprehensive insulation test and functional verification must be conducted on the KHP belt conveyor protection device to ensure that the system is in optimal working condition.

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