| 摘要 |
PURPOSE:To enable to securely convey a particulate material, by a method wherein a fluexible inner container capable of being bent in response to a negative pressure is provided in a container consisting of a rigid body in which a particulate material is contained, and the particulate material is drawn to the center of the container by bending the inner container. CONSTITUTION:The flexible inner container 10 formed of a rubber or the like is placed in close contact with the inside of the container 1 consisting of a rigid body, and a main body 2 of the container is provided with a plurality of communicating holes 11 for communicating a closed space formed between the container 1 and the inner container 10 to the atmosphere. When a particulate material P is fed into the container 1 through an ON-OFF valve 4 and thereafter the valve 4 is closed and air is blown in through an air blowing-in port 6, air flows through a conveying blowing port 2a and a conveying pipe 5, generating a negative pressure in the container 1. Consequently, the inner container 10 is collapsingly bent by the negative pressure and is drawn to a central part, so that the particulate material P is uniformly conveyed irrespectively of whether it is at the central part or a peripheral part of the interior of the container 1. |
