Rice Lake Weighing systems Dustless loading spout (DLS) is used for loading bulk material into trucks, railcars, barges and ships as well as for discharging material on to stockpiles. The spout can be provided with a positioner and integral dust collector .These spouts are ideal for bulk handling of a variety of powder material such as cement, fly ash, clinker, rockphosphate, gypsum, sulphuretc.Dustless loading spouts in most of the cement plants, power plants, ports, fertilizers are widely used in.