GUJ30 Mining Coal Stacking Sensor

Description :

  GUJ30 coal stacking sensor is a safety protection device specially designed for underground belt conveyor of coal mine, which is mainly used to detect coal stacking during belt transportation. When there is blockage or coal stacking on the coal conveyor belt, the equipment can quickly send a signal and cut off the power supply to prevent the accident from expanding and ensure the safety of mine production. Its core function is real-time monitoring of material height, suitable for continuous operation environments under various harsh working conditions, and is an indispensable key component in modern mining automation control systems.

  The GUJ30 coal pile sensor adopts an intrinsic safety circuit design, and the housing is usually made of high-strength engineering plastic or cast aluminum, which has excellent dust, water and impact resistance performance. The execution standard complies with the general technical requirements of MT/T series coal mine sensors, and the protection level generally reaches IP65 or above, ensuring stable operation in humid and dusty underground environments. The working voltage is mostly DC 12V or 24V, and the output signal is commonly switch contact or current signal. The wiring method is simple and reliable, making it easy to connect with various PLCs or comprehensive protectors, meeting the strict requirements of coal mine safety regulations for electrical equipment.

  When selecting, it is necessary to clarify the installation position and detection distance. GUJ30 is suitable for the head or lower part of the straight section belt conveyor, and is not suitable for areas with severe vibration or strong magnetic field interference. Compared with ordinary limit switches, coal stacking sensors have higher sensitivity and stability, and can distinguish between normal material fluctuations and abnormal stacking. If the on-site space is narrow or there is a large accumulation of dust, it is recommended to choose a model with self-cleaning function or special probe design to avoid misoperation. Purchasing personnel should pay close attention to their explosion-proof mark ExibI and response time indicators to ensure compatibility with existing monitoring systems.

  When installing the GUJ30 coal stack sensor, it should be firmly fixed, and the probe direction should be facing the material flow direction to avoid damage caused by lateral force. During daily maintenance, it is necessary to regularly clean the coal powder and debris attached to the surface of the probe, check the sealing of the junction box and the integrity of the cables to prevent water ingress and short circuits. Common faults include no signal output or false alarms, often caused by buried probes or broken lines. They can be checked by measuring the on/off status with a multimeter. It is recommended to conduct functional testing once every quarter to simulate coal stacking scenarios to verify the reliability of actions, extend the service life of equipment, and ensure continuous and effective monitoring.

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