Long-term bulk grain storage inevitably produces residual grain accumulation at silo bottom corners and dead zones. Traditional manual cleaning and simple mechanical sweeping methods cannot completely remove fine grain residues, dust deposits and compacted material layers. Accumulated leftovers breed bacteria, absorb moisture and cause secondary mildew, seriously affecting subsequent grain storage quality and reducing effective silo capacity. Advanced silo bottom cleaning technology has become an essential technical configuration for modern standardized grain depots, solving residual material pollution and low utilization problems from the source.