en.Wedoany.com Reported - Recently, Jinhe Coal Mine in Gansu, China, innovatively deployed an automatic lifting warning device for its underground yard. This device establishes an intelligent protection system for the entire process of inclined shaft hoisting operations, replacing traditional manual control with intelligent technology management, aiming to address the shortcomings and vulnerabilities of the conventional manual warning model. Jinhe Coal Mine is located in Gansu, China, where underground transportation safety has long relied on methods such as on-site manual guarding, hanging warning signs, and temporarily setting up protective facilities.
During peak periods of inclined shaft hoisting operations and times when personnel and vehicle flows intersect, traditional manual guarding struggles to achieve full-time, blind-spot-free supervision and cannot promptly stop personnel from mistakenly entering dangerous track areas. Meanwhile, the traditional model lacks rigid constraints, with non-standardized control standards and insufficient closed-loop management, hindering the improvement of safety standardization in inclined lane transportation. Targeting these pain points, technical personnel at Jinhe Coal Mine optimized and upgraded the protection plan, innovatively developing and applying the automatic lifting warning device for the underground yard.
This device abandons the traditional model of single manual operation and single video monitoring, creating an integrated intelligent protection system featuring signal box interlocking, high-definition video surveillance, and linkage with the retractable winch. The device is fully adapted to the complex working conditions of the underground environment, which is humid, dusty, and subject to high interference. It adopts an integrated mining explosion-proof design, featuring a robust structure, stable operation, and strong impact resistance. It can meet the routine operational demands of inclined shaft yards, with a low failure rate and convenient operation and maintenance, enabling long-term, uninterrupted, and stable operation.
Before the inclined shaft hoisting operation starts, the hoisting system signal is synchronously transmitted to the device's signal box, triggering the retractable winch to work automatically and smoothly lower the warning barrier, physically sealing off the dangerous track transportation area. Simultaneously, the camera activates throughout the process, monitoring the status of the warning area in real-time to ensure no personnel remain or trespass illegally within the zone. After the inclined shaft hoisting operation concludes and the equipment shuts down, the system signal automatically provides feedback. The device then links with the retractable winch to automatically raise the warning barrier, lift the area closure, and quickly restore normal passage conditions for personnel, equipment, and materials in the yard, all without manual intervention. This device effectively avoids safety hazards such as personnel mistakenly entering or illegally trespassing into transportation areas, reduces the investment in on-site manual guarding, and lowers labor costs and work intensity.
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