Fuel transfer apparatus and boiler facility including same

An apparatus for transporting fine particulate fuel to a combustor, the apparatus comprising:

• a main body having a flow space through which fuel is transferred in a flow direction;
• and
• a swirler installed in the main body and configured to create a swirling flow of the fuel flowing through the main body,
• wherein the swirler comprises:
• a swirling body that includes a hollow and is spaced apart from an inner wall of the main body;
• and
• a plurality of ridge-shaped supports installed on and fixed to an outer circumferential surface of the swirling body and arranged to abut an inner surface of the main body, the plurality of ridge-shaped supports configured to support the swirling body against the inner wall of the main body,
• wherein the swirling body has a diameter that increases in the flow direction of the fuel, and
• wherein each of the plurality ridge-shaped supports includes an upstream end and a downstream end, and a distance between the upstream ends of the ridge-shaped supports is shorter than a distance between the downstream ends of the ridge-shaped supports.