Patent ID: 7354547

Claim:
A pressure tapping type ladle for transferring molten-metal comprising: a ladle body for containing molten metal; a top cover covering a top opening of the ladle body; an openable working cover covering an opening formed in a part of the top cover; and a molten-metal tapping portion extending from a lower end portion of the ladle body to above the ladle body; wherein the working cover is equipped with a cover body covering the opening of the top cover from above, a gas inlet formed in a top panel of the cover body, and a heat-resistant layer provided inside the cover body; further wherein the heat-resistant layer consists of: a gas-permeable fireproof material layer; a gas-permeable fireproof material layer and a gas-permeable heat-insulating material layer between the gas-permeable fireproof material layer and the gas inlet; or a gas-permeable fireproof material layer and a heat-insulating material layer having a gas flow portion between the gas-permeable fireproof material layer and the gas inlet; and yet further wherein the gas inlet is configured so as to allow gas for pressurizing inside the ladle body to be introduced from the gas inlet via the gas-permeable fireproof layer.