LOOSE MATERIALS PNEUMATIC TRANSPORTATION METHOD Russian patent published in 1998 - IPC

FIELD: any branches of industry, agriculture, civil engineering; transportation of loose materials in gas flow. SUBSTANCE: proposed method includes delivery of compressed air into feeder mixing chamber, division of material flow into n and more flows, sequential putting in the flows by increasing their number from i=1 to i=n through time intervals T_i+1 = L / U_i where L is length of transportation path, U_i is velocity of front of i-th flow of aeromixture. Material is mixed with air each time after putting in i-th flow of material into feeder after getting of flow into feeder mixing chamber. Before finishing the transportation, charging of material into feeder is decreased by reducing the number of material flows put into feeder from i=n to i=0. EFFECT: enlarged operating capabilities. 1 dwg