| 摘要 |
PROBLEM TO BE SOLVED: To provide a coal transport device capable of stably transporting coal while preventing a pipe from clogging caused by adhered coal and stabilizing the application of a crusher.SOLUTION: A screw feeder 3 disposed in a casing 2 has a spiral screw 31 transporting coal while rotating around a rotary shaft 31a disposed from a coal charge part 21 positioned facing the outlet of a coal feeder at the inside of the casing 2 to the entrance side of a mill. The tip 33 of the screw 31 is subjected to hardening padding processing with chromium and the like and then the occurrence of adhered coal on the inner wall of the casing 2 can be avoided in advance and the clogging of a coal feeding pipe caused by the adhered coal is prevented. Further, friction between the screw 31 and the casing 2 can be reduced and then coal can be stably transported.SELECTED DRAWING: Figure 1 |
