| 摘要 |
PURPOSE:To dry a lining film by connecting an air ejector to one of the openings of a pipeline, and supplying working compressed air to the ejector to such the air in the pipeline. CONSTITUTION:A lining material 6 is supplied into pipelines 4a-4e, and a lining film 5 is formed. Working air 6 is then supplied to the air ejector 1 from a compressor 2, and the terminal openings 8-10 of the respective pipelines are simultaneously opened. Consequently, the air in the pipelines 4a-4e is sucked toward an inlet opening A0 by the operation of the ejector 1, the excess lining material 6 retained in the pipelines 4a-4e flows toward the inlet opening A0, hence the lining film 5 is corrected, and the drying and curing of the film 5 are promoted. By this method, the difference in the thicknesses of the film between the inlet side A0 and the outlet side is reduced, only one device for purifying the exhaust is sufficiently used, and the materials for the equipment can be reduced.
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