The middle trough is one of the core structural components of the scraper conveyor system used in underground coal mines. It forms the primary load-bearing section of the conveyor line and acts as the channel in which the scraper chain and material move. Designed to withstand harsh underground conditions, including high load, humidity, corrosion, and abrasive wear, the middle trough plays a decisive role in the conveyor's reliability, service life, and overall productivity.
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