Through on-site evaluation, Sinpo technical personnel instructed the installation of SINPO GRV air cannons, clearing blockages and assisting flow in important parts, focusing on solving problems such as blockage of blanking openings, material arching, rat holes, and sticking walls. The SINPO GR Vortex air cannon accelerates the flow of solid materials and clears blockages by releasing compressed air. Blasting force of air is large and its sound is light, which effectively promotes the flow of materials and ensures the utilization rate of silo volume.