| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a drain pipe regeneration method which can line a drain pipe irrespective of a vertical main pipe, a horizontal main pipe, and a branch pipe continuously at a practical cost by a single apparatus and a method. <P>SOLUTION: In the method, an indoor drain pipe for a condominium is regenerated by resin-lining the inner surface of the drain pipe. a liquid resin composition is put in the suction side heat-insulating tank 20 of a gear pump device 18 to be kept at a prescribed temperature to be prepared to be able to be supplied to a spray gun device 10 for coating the inside of a pipe. Next, the spray gun device 10 is inserted into a small caliber pipe 13 from its terminal. After the spray gun device 10 reaches a large caliber main pipe 11 by using a propulsion device 14 and a direction control device 15, the propulsion device 14 is rotated reversely, while the device 10 is pulled from the main pipe 11 toward the terminal of the small caliber pipe 13, the resin composition supplied from the gear pump device 18 is ejected from the spraying tip ejection hole of the device 10, and a resin coating film of a prescribed thickness is adhered to the inner surface of a pipe to be coated. The resin coating film is dried and cured for the resin lining of the inner surface of the pipe. <P>COPYRIGHT: (C)2004,JPO</p> |
