Bulk Bag Unloader provides closed-cycle dust containment
This NBE bulk bag unloader was designed, engineered, and built to address specific dust reduction, and process operation efficiency requirements identified by NBE during the application assessment. A non-NBE unit, that was previously in operation, often caused material dust release during the bag spouting sequence; presenting operator hazards and slowing process cycle times and changeovers. In response, NBE developed a process-specific bulk bag discharger that enables the operator to easily and properly spout the bulk bag while simultaneously enclosing the bag spout interface within the NBE E3 closed-cycle dust recovery system. The NBE E3 closed-cycle dust recovery system prevents the release of dust into the work area by recovering within the E3 the contained dust and re-introducing the material dust back into the discharge path. As material flow moves from the bulk bag through the bag spout interface, the suspension system of the E3 automatically reacts to the lessening volume of material in the bulk bag and lowers the bag spout interface to pull the bag into a taut, conical shape. This bag-shaping function of the E3® ensures no residual material remains in the bulk bag and, as a result, no residual material dust is released during unspouting. Personnel, product, and process operations are protected from harmful contaminants.
This NBE bulk bag discharger unloads various semi free-flowing, hygroscopic, contaminable powders at a rate of 6,000 lbs/hr. Changeover times were significantly shortened due to reduced equipment cleaning times and improvements in operator bag spouting efficiency.