Abstract: [PROBLEM] Provided is a transportation method for a water-absorbing resin powder substance, which is capable of suppressing property decrease of the water-absorbing resin powder substance while suppressing blocking phenomenon and is suitable for long distance transportation. [SOLUTION] The present invention is a transportation method for a water-absorbing resin powder substance during a production step by pneumatic transportation via a transportation pipeline. In this transportation method, two or more pneumatic transportation apparatuses (A, B, C) are provided in one transportation section, and these pneumatic transportation apparatuses (A, B, C) are connected by the transportation pipelines (P1, P2, P3) in series.

Abstract: [Problem] To provide a pneumatic conveyance method for a water-absorbing resin powder substance, which is capable of suppressing property decrease of the water-absorbing resin powder substance, while suppressing obstruction phenomenon. [Solution] A conveyance method for a water-absorbing resin powder substance by pneumatic conveyance of the water-absorbing resin powder substance during a production step via a transportation pipeline, wherein a variation of a solid-gas ratio (R1/R2) exceeds 1 and is equal to or smaller than 7, provided that R1 (kg-resin/kg-air) stands for an initial solid-gas ratio at a start point of the transportation pipeline, and R2 (kg-resin/kg-air) stands for a terminal solid-gas ratio at a terminal point of the transportation pipeline is provided.

Abstract: [Problem] To provide a pneumatic conveyance method for a water-absorbing resin powder substance, which is capable of suppressing property decrease of the water-absorbing resin powder substance, while suppressing obstruction phenomenon. [Solution] A conveyance method for a water-absorbing resin powder substance by pneumatic conveyance of the water-absorbing resin powder substance during a production step via a transportation pipeline, wherein a variation of a solid-gas ratio (R1/R2) exceeds 1 and is equal to or smaller than 7, provided that R1 (kg-resin/kg-air) stands for an initial solid-gas ratio at a start point of the transportation pipeline, and R2 (kg-resin/kg-air) stands for a terminal solid-gas ratio at a terminal point of the transportation pipeline is provided.

Abstract: Provided is a method of transporting an absorbent resin powder, said method being suitable for long-distance transport, and being able to inhibit the deterioration of the properties of the absorbent resin powder while also inhibiting obstructions. During the manufacturing process, the absorbent resin powder is transported pneumatically via transport pipes. This transport method involves two or more air transport devices (A, B, C) within one transport section, and the air transport devices (A, B, C) are connected in series by transport pipes (P1, P2, P3).