![]() The tank should be assessed for potential hazards and PPE needs, because the operation of a bin whip can generate a tremendous amount of dust. While no bin entry is required, in most cases, this requires hiring a professional service to do it. Use a bin whip to break up clumped grain.Use a compressed air supply to dislodge grain.The tank should be assessed for hazards and personal protective equipment (PPE) that may be required for an operator. Never vacuum from below the level of any operator in the tank or from beneath his or her feet. To do this safely, perform lockout/tagout on tank equipment and remain in constant communication with the grain vac operator. Use an extendible utility pole to reach and knock down grain from a side or overhead opening to the tank.In that case, it is essential to follow all grain bin entry procedures, including locking out and tagging all tank equipment, wearing a full-body harness with properly rigged and anchored Lifeline System, and having a trained observer present. Where no tunnel is available and all other non-entry options have been exhausted, there may be no choice but to enter the tank.Tanks with sidedraw spouts need to be designed properly with flume systems, so grain can be top-down unloaded, so the internal pressure remains positive during unloading. ![]() Eventually, bolts start popping, and the bin collapses. Off-center unloading results in negative pressures inside the tank and deformation of the sidewalls. This results in even pressure all around the tank and safe unloading conditions. For example, it is important to remove all grain possible through the center sump first, then use intermediate sumps for removing whatever grain remains. Improper unloading practices actually can impact the integrity of the bin itself. Often, this results in plugged sumps, and occasionally, the grain may even catch fire, prompting entry into the bin under unsafe conditions. One of the most common reasons for entrapments is associated with attempting to unload out-of-condition grain. The number of entrapments and engulfments in grain storage and tanks spiked late in 2019 and early in 2020 following the exceedingly wet 2019 growing season.
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