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National Bulk Equipment (NBE)’s self-contained, high-volume bulk material packaging system processes up to 50,000lb/hr of combustible materials, including 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 ft capacity storage vessels.

Built to ANSI and ASME standards, each 12ft-diameter vessel is constructed of 304 stainless steel, and is internal-pressure-rated to 116psig.

Material is supplied to each vessel from a 50ft-tall bucket conveyor through a three-way flange inlet that first directs material to size reduction units, then into the storage vessel.

Material is discharged from each storage vessel to the bulk bag filling systems using 12in cast stainless-steel rotary airlock valves rated to 150psig and 400F material contact.

Conditioned material is packaged using three bulk-bag filling stations, each at a process rate of 17,000lb/hr.

Integrated, NTEP-certified hang-weigh scale systems ensure each filled bulk bag package weighs accurate to +/- .01 per cent of total bag capacity, up to 4,500lb.

System-wide process automation and controls communication are managed from the facilities supervisory control and data acquisition system (SCADA).

Equipment-level automation and controls are centralised to a single, menu-driven, touch-screen HMI, designed and built by NBE.

Operator exposure to caustic material was eliminated, and operator physical ergonomics were optimised as a result of rigorous NBE risk-assessment procedures.

NBE expertise in specifying, designing and manufacturing process systems to application-appropriate codes, standards and regulations ensured system compliance at start up.

National Bulk Equipment

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