| 摘要 |
PROBLEM TO BE SOLVED: To enable a wet material mainly comprising mortar, concrete, or a greening base material to be completely dispersed, smoothly force-transferred, and sprayed without causing clogging in a confluent pipe or a pipeline and to enable the remaining pressure to be safely and easily discharged when clogging occurs. SOLUTION: A wet-material introduction pipe 27 is fixed to the side wall of the confluent pipe 25 for air/the wet material; an air introduction pipe 28 is connected to one side of the wet-material introduction pipe 27 in the direction orthogonal to the flowing direction of the wet material; an air jetting port 28a is formed at a position near the opening end face of the wet-material introduction pipe 27; at a position on a straight line facing the wet-material introduction pipe 27, a remaining pressure discharge pipe 37 is provided so that the inner side opening faces the opening end face of the wet-material introduction pipe 27 with a certain distance and so that a blank cap 31 is freely detachably attached to the inner side opening; and a feed pipe 29 is arranged at the other side facing the air introduction pipe 28. COPYRIGHT: (C)2004,JPO
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