Access port arrangement and method of forming thereof

The present invention relates to an access port arrangement and in particular an access port arrangement capable of enabling stirring of a molten metal in a vessel. Such arrangements are often called tuyeres. The access port arrangement comprises an inner part forming a core with an outer periphery and an outer part comprising a bore therethrough having an inner periphery positioned around the outer periphery of the inner part with the path way defined by a gap between the outer periphery of the inner part and the inner periphery on the outer part. The arrangement further comprises one or more bridges that span the gap between the outer periphery of the inner part and the inner periphery of the outer part. The inner and outer parts are formed of a refractory material. 本发明涉及种进入口配置，特别是种能够搅拌容器中的熔融金属的进入口配置。这种装置通常被称为风嘴。该进入口配置包括内部部件和外部部件，该内部部件形成具有外周缘的芯，该外部部件包括穿过其的孔，该孔具有围绕内部部件的外周缘布置的内周缘，且具有由内部部件的外周缘和外部部件上的内周缘之间的间隙限定的路径。该装置还包括跨越该内部部件的外周缘和外部部件的内周缘之间的间隙的个或多个桥。该内部部件和外部部件由耐火材料形成。