How does the laser foreign object removal device quickly resolve the crisis of foreign objects on the catenary?

2026-04-22

Previously, Guangdong region was hit by strong convective weather, causing sudden foreign object hanging faults on the catenary in some sections of the Nanning-Guangzhou High-Speed Railway, Guiyang-Guangzhou High-Speed Railway and Guangzhou-Zhanjiang High-Speed Railway. As a result, a large number of trains between Guangzhou South and Foshan West, and between Foshan and Liwan were forced to slow down or stop, and passengers on these trains experienced varying degrees of delays.

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The catenary of high-speed railways is the energy lifeline for train operation. Once it is entangled by foreign objects, it may cause short circuits and tripping, or even burn the wires, directly leading to train stoppages.

This is where the high-speed railway catenary foreign object removal device, commonly known as the "laser cannon" or "laser foreign object removal instrument", comes into play. It is a high-tech device developed by Guangxi Hai Zhuo Technology that uses high-energy laser beams to remotely remove foreign objects from the catenary. With its "fast, accurate and powerful" characteristics, it has become a "special forces" to ensure the smooth operation of the high-speed railway arteries.

Unlike traditional clearance equipment that often weighs hundreds of kilograms, the HIZ-NT-QZY focuses on "portability" and "flexibility". It adopts a backpack or tripod design, and the entire system is lightweight and integrated. Once a foreign object intrusion occurs, maintenance personnel do not need to wait for large cranes to arrive. They only need to choose a stable location with a good view and an appropriate distance, and can complete the equipment deployment within a few minutes. This "ready-to-fight" capability is crucial for the time-sensitive high-speed railway emergency repairs.

In terms of operation, the HIZ-NT-QZY power laser foreign object removal device demonstrates an extremely high level of intelligence:

Precise Locking: The operator first uses the built-in laser rangefinder to aim at the foreign object hundreds of meters away and obtain precise distance data.

Parameter Adaptation: The data is input into the tablet computer control terminal, and the system automatically recommends the best laser output power based on the ignition point differences of the foreign object materials (such as plastic bags, agricultural films or high-strength kite strings).

Micro-control: Through the virtual "pan-tilt" button on the electronic screen, the operator can adjust the beam direction in real time by sliding their fingers at a uniform speed. The system is specially designed with an anti-burning algorithm to prevent the laser from staying in the same position for too long, ensuring that the foreign object melts and falls off while protecting the catenary wires from damage.

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