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Arch Dust Suppression Handbook <br />CEMENT - All stages of crushing and screening, truck dumps, storage bins, reclaim <br />feeders, stacking, limestone and additive storage silos and sheds, and open handling of <br />cold clinker. <br />CRUSHED STONE - All stages of crushing and screening, truck dumps, reclaim <br />feeders, stacking and reclaiming. <br />SMELTING - Ore and cold slag handling. <br />POWER - Solid fuel receiving, conveying, stacking, reclaiming, and processing. <br />CHEMICAL - Bulk solid material handling including truck and rail car loading; unloading, <br />conveying, storing, reclaiming, and processing. <br />WOOD PRODUCTS - Conveying and processing bark, saw dust systems, truck loading <br />and unloading, and fly ash handling. <br />RECYCLING - Paper unfailing, tromels, and conveying; wood waste handling and <br />processing; and scrap metal processing. <br />SOLID WASTE - Garbage handling at transfer stations, land fills, incinerators and fly ash <br />conditioning. <br />0 GUIDELINES TO QUALIFY AGGLOMERATIVE DUST CONTROL APPLICATIONS: <br />C <br />1. Is the source of dust a hot material? Agglomerate dust control uses moisture to agglomerate <br />and settle dust. In a hot environment, the fog evaporates to steam, generally not a good <br />application for agglomerative dust technology. <br />2. Is the dust extremely hygroscopic or soluble in water? For example, Agglomerative dust <br />control may not be appropriate for cement batch plants because the agglomerated dust sticks to <br />the walls forming cement. Dust generated from handling salts and other soluble materials have <br />not been effectively resolved using agglomerative dust technology. <br />3. Is visibility a major concern? In certain applications, the fogging process will reduce visibility <br />while agglomerating dust particles. This may require intermittent fogging, where the fog <br />suppresses the dust and then shuts off to provide maximum visibility. <br />4. Is the dust source is highly corrosive? Agglomerative dust technology is not the answer. <br />5. Is the dust source sensitive to the addition of small amounts of water? In some cases the <br />addition of even a small amount of water may cause the accelerated growth of bacteria, an <br />increased chance for spontaneous combustion, or a deterioration of product quality during <br />extended storage. Pharmaceuticals and certain chemical processes; and selected food industry <br />processes are not good applications for agglomerative dust technology. <br />Page 7 <br />