| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collector of an electric welded tube manufacturing line capable of improving the peripheral environment of an induction heater and a squeeze roll. SOLUTION: The dust collector is installed on an electric welded tube manufacturing line with a steel strip to be metal-plated as a stock. The dust collector comprises a box-shaped hood which surrounds an induction heater and a squeeze roll to allow the steel strip formed in a cylindrical shape by a forming roll to pass through and shuts off the outside air, an exhauster which communicates with the box-shaped hood through a duct to suck and evacuate the atmosphere in the hood, and a collection means which is provided in the middle of the duct to remove and collect fume and dust from the exhausted air passing through the duct. A through hole to allow the steel strip formed in a cylindrical shape to pass through is formed in a wall surface on the upstream side of the box-shaped hood, and an expandable through hole to allow a tubular body with both butted ends in the width direction of the steel strip joined to pass through is formed in a wall surface on the downstream side. COPYRIGHT: (C)2006,JPO&NCIPI
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