| 摘要 |
<p>The present invention relates to an apparatus for automatically opening and closing a door in a smelting furnace to allow a door transfer roller to smoothly transfer the door without being engaged with an inclination protrusion by allowing the door installed in both sides of a circular inlet of the smelting furnace to be easily opened and closed in a horizontal direction. The door (120) is installed in both upper sides of the inlet (110) of the smelting furnace (100) to be transferred in a horizontal direction. A driving gear (150) rotated and driven by a rotary shaft (140) is separately installed in both sides of the rotary shaft (140). A rack gear (121) is installed in both upper sides of the door (120), wherein the door moves in a horizontal direction. A driving gear (150) in both sides of the rotary shaft (140) installed in the rear side of the door (120) is engaged with the rack gear (121) to form a door transfer part (160).</p> |
