Manner and the device null powder granule duct which cover the adhesive in the powder granule which the inside of pipe is carried

摘要

PROBLEM TO BE SOLVED: To perfectly prevent the clogging of particulate transport pipe with particulates to enable continuous operation over a long time by inclining the ejecting direction of an adhesive toward the upstream side of the particulate transport pipe when the adhesive is injected in the air streams in the transport pipe to be mixed with the particulate material.;SOLUTION: Particulates 14 comprising fibrillated wood fibers are unidirectionally transported through a transport pipe 11 along the pipe axial direction Z thereof by high pressure air streams and an adhesive 13 is ejected to the transport pipe 11 from a nozzle 12. At this time, the nozzle 12 is attached to the transport pipe 11 in an inclined state so that the ejecting direction thereof is turned toward the upstream side of the transport pipe 11. By this constitution, the adhesive 13 ejected from the nozzle 12 is diffused within the transport pipe 11 to eliminate the adhesion of the adhesive 13 to the pipe wall of the transport pipe 11. That is, the generation of a Karman vortex street is eliminated to prevent the meandering of the adhesive 13. Therefore, the adhesion and deposit of the particulate material 14 caused by the adhesion of the adhesive 13 can be prevented and the clogging of the transport pipe 11 can be prevented.;COPYRIGHT: (C)2001,JPO