It is suitable for transporting loose powder or small particle materials in concrete mixing plant in construction machinery industry, electric power, metallurgy, chemical industry, machinery, light industry, building materials, food, feed, coal, grain storage and other industries. Such as: cement, lime, fly ash, glass, chemical fertilizer, ash, sand, coke, soda ash, pulverized coal, sinter powder, urea, compound fertilizer, dry sand, flour, grain, calcium carbonate and small coal.