| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a drawing out method of waste feeding pipe and its device in which the work is simple, using a small and easily handleable device. SOLUTION: While the piston rod 2 of a single acting hydraulic cylinder 1 is connected to a waste feeding pipe 102 by using a drawing tool 10, the single acting hydraulic cylinder 1 is hung down to the waste feeding pipe 102 by using a hanging tool 14, and its rear end is received by a reaction plate 7. The waste feeding pipe 102 is drawn out one stroke part of the piston rod 2 by driving the single acting hydraulic cylinder 1 by using a manual hydraulic pump 5, and the waste feeding pipe 102 is drawn out by repeating the drawing out operation while cutting at its root.</p> |
