公开(公告)号：US6017487A

公开(公告)日：2000-01-25

申请号：US158853

申请日：1993-11-29

申请人： George L. Fish

发明人： George L. Fish

IPC分类号： F27D1/04 ,  F27D1/18 ,  C21B7/02

CPC分类号： F27D1/04 ,  F27D1/1808

摘要： A lid for a melting furnace includes preformed refractory side panels in the form of circular sectors and a center panel in the form of a circular or octagonal closure. The side panels are inclined upward and inward from support provided by a lid ring encircling the lid. The center panel is horizontal. The edges of the panels are according to one embodiment beveled to mutually support one another and contain keyways filled with keys that structurally interconnect the panels. The side panels may include a plurality of blocks with step portions for mutual engagement between a corresponding skewback and the center panel.

摘要翻译： 用于熔炉的盖子包括呈圆形扇形形式的预制耐火材料侧板和圆形或八角形封闭件形式的中心板。 侧板从由围绕盖的盖环提供的支撑件向上和向内倾斜。 中心面板是水平的。 面板的边缘根据一个实施例，其被倾斜以彼此相互支撑并且包含填充有结构地互连面板的键的键槽。 侧板可以包括多个块，其具有阶梯部分，用于相应的倒角与中心板之间的相互接合。