This self-contained, high-volume bulk material packaging system processes up to 50,000 pounds/hour of combustible materials of varied physical characteristics, including interlocking flakes and free-flowing, friable rods. Process operations include material discharge from bulk bags; material introduction from belt flaker units; enclosed, vertical conveying; high-capacity bulk storage; material conditioning; and packaging into bulk bags. Integral to providing a reliable, consistent, high-volume material supply to the downstream bulk bag packaging operation are three, 1,060 cubic-foot capacity storage vessels. Built to ANSI and ASME standards, each 12-foot diameter vessel is constructed of 304 stainless steel and is internal pressure rated to 116 PSIG. Material is supplied to each vessel from a 50-foot tall bucket conveyor through a 3-way flange inlet that directs material to size reduction units then into the storage vessel. The material is discharged from each storage vessel to the bulk bag filling systems using 12-inch, cast stainless steel rotary airlock valves rated to 150 PSIG and 400ºF material contact. Conditioned material is packaged using three, bulk bag filling stations, each at a process rate of 17,000 pounds/hour. Integrated, NTEP-certified hang-weigh scale systems ensure each filled bulk bag package weighs accurate to +/- .01% of total bag capacity, up to 4,500 pounds.
National Bulk Equipment, Inc., Holland, MI 49424. http://nbe-inc.com or call 616-399-2220