| 摘要 |
PROBLEM TO BE SOLVED: To prevent large quantities of impalpable powder fuel from being supplied to a burner part by collectively grinding large quantities of solid fuel accumulated at a center part of a rotary table when the solid fuel containing much water is ground.SOLUTION: A control part 50 of a solid fuel grinding device 1 controls to pause supply of the solid fuel by a fuel supply part 36 without pausing ventilation of primary oxidative gas to a roller by a primary oxidative gas fan 90 when a start of grinding of the solid fuel is not detected even if a given time elapses from a start of supply of the solid fuel by the fuel supply part 36, and to resume the supply of the solid fuel by the fuel supply part 36 in response to a fact that the start of grinding of the solid fuel is detected. |
