METHOD FOR CARRYING POWDERY SOLID AND ITS DEVICE

PURPOSE:To forcedly such a powdery solid through a low inner pressure section and to emit it under high inner pressure by providing the upper central part of a cylindrical container with a powdery solid inflow pipe, and moreover providing plural carrying gas supply pipes in a container connecting direction, and an emitting pipe on the side of a lower inner wall. CONSTITUTION:The upper central part of a cylindrical container (carrier) 27 is provided with an inflow pipe 42 for a powdery solid 23, and plural supply sections 43 for carrying gas 9' are tangentially provided on the outer wall of the carrier 27, and an emitting pipe 45 for a multiphase flow 46 formed of the powdery solid 23 and the carrying gas 9' is provided on the side of a lower inner wall. Pressure distribution in the carrier 27 therefore becomes negative at its central part on account of the swirling flow of the carrying gas 9', and the powdery solid is forcedly made to flow in through the inflow pipe 42 and does not form bridge and moreover pressure rises in a part near an inner wall, and the powdery solid can therefore be emitted under high pressure, and directly supplied into a high pressure combustion furnace. In addition to that, even in the case of pressure fluctuation in the furnace, the carrying gas 9' can be regulated through a regulating valve for its steady supply. Thus the powdery solid can be continuously supplied by simply formation.