Fixing Chute Plugging Problems at Pet Coke Shipping Terminal The Need A major US conglomerate ships petroleum coke throughout the Pacific Rim. Delays in the loading operation created by flow stoppages can disrupt schedules, leading to higher shipping costs. The facility encountered severe plugging problems with the chutes that feeds into their main storage silos. These stoppages occurred in several chutes at conveyor transfer points. The water used in cleanups ended up in the silos, which increased the moisture content of the stored coke and thus created additional clean-up problems downstream. A tripper car chute in the ship loading system also experienced similar problems. Blockages at this location, where flow rates at times reach 2,000 tons per hour, sometimes halted ship-loading o

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