... φ3.9×(30+1.2)m dryer for NPK compound fertilizer plantTechnical parameters1.inner diameter of shell: φ3.9m2 ... .22.2×1222001200012-172.2-7.45YCT-250-4B22JZQ75030.32.2×1422001400014-202.2-7.45YCT-250-4B22JZQ75032.232 ... crushing equipment, environmental protection equipment, cooling equipment, drying equipment, compound fertilizer equipment, packing machine, chemical equipment and electrical control system ...