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Anyone who’s operated a stacker-reclaimer knows that these machines rely on heavy-duty, counterweight-type tensioning devices for their boom-mounted belt conveyors. But when dealing with sticky, wet materials entering the plant, the non-working surfaces of the conveyor belts often accumulate significant amounts of fine mineral dust. As the belt passes over the counterweight-driven return rollers, this buildup is effectively "scraped off," yet it still tends to fall—sometimes even causing the belt to drift off course and leading to severe material spillage. Moreover, during the stacking and reclaiming processes, the area directly beneath these return rollers happens to be where the reclaimer’s large traveling carriage mechanism and its associated rails are located. As a result, any material that falls ends up coating the carriage’s gearbox, motors, gearboxes, and even the rails themselves. It’s no wonder the old factory rhyme—"Dusty in sunny weather, muddy in rainy"—has long been a popular saying here, not just about workers’ uniforms but also about the grimy, grime-covered state of the equipment itself. To tackle this persistent issue that has plagued material handlers for years, we’ve tried various solutions: covering the exposed areas with scrap rubber—but without proper securing, the rubber inevitably slips off. And while tying it down with wire might seem like a quick fix, it only makes things worse, as the makeshift "web" created by the wire actually traps more debris, further compounding the problem.

　　“The ‘stubborn residue’ has been identified—now, how do we eliminate it? To tackle this issue, Engineer He organized a special meeting specifically for team leaders. ‘Why don’t we assign someone to literally hold an umbrella over it?’ someone joked during the discussion. ‘An umbrella?’ ‘A canopy would be even better!’ ‘Let’s design it in an A-shape, so the material slides right off by itself!’ In the end, we settled on a unique “intermediate” structure. The A-shaped roof allows most of the dropped material to naturally slide back into the stockpile area, while the few remaining “stubborn bits” can easily be cleared away by workers using the sloped surface. Meanwhile, sturdy steel supports ensure the canopy stays firmly in place without collapsing. With determination, the shift supervisor personally led the team leaders in building a prototype first. Leveraging downtime between shifts, they carefully carried out the phased renovation of the walking mechanisms on two stacker-reclaimers, equipping them with the new intermediate roof structures. And if you look closely, you’ll spot a friendly little sign hanging at the front of the canopy: “Watch Out—Beware of Head Collisions!” As expected, teamwork truly is powerful—so much so that this simple yet effective improvement is already being rolled out across other work areas, proving once again that three smart minds really can outshine even the greatest strategist!”

　　The Jiezi Shed has effectively become a "protective umbrella" for the stacker-reclaimer equipment, ensuring the smooth operation of its traveling drive system. Meanwhile, the shift supervisor and team leaders have made it their mission to reduce workers' physical strain and maintain seamless equipment performance—earning them a warm and appreciative "protective umbrella" in the hearts of their colleagues. A well-deserved thumbs-up!