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21. 发明授权

US5280495A Furnace refractory extraction system and method 失效
$Furnace refractory extraction system and method$
标题翻译：炉难熔提取系统及方法
公开(公告)号：US5280495A
公开(公告)日：1994-01-18
申请号：US835666
申请日：1992-02-14
申请人： George Havas , Jose A. Garcia
发明人： George Havas , Jose A. Garcia
IPC分类号： F27B14/10 , F27D1/16 , H05B6/24 , H05B6/22
CPC分类号： F27D1/1694 , F27B14/10 , H05B6/24
摘要： A furnace refractory extraction system and method includes a selectively removable bottom portion which is attached to a refractory extraction device associated with a container for drawing the refractory lining of a coreless induction furnace into the container. A plug portion in the furnace bottom is selectively removable to provide access to a bottom wall of the refractory lining. An opening is made in the bottom wall of the lining through which an extractor shaft is inserted and then attached to the removable bottom portion of the furnace bottom. The other end of the shaft is attached to a piston and cylinder assembly associated with the container at the open end of the furnace. When the piston and cylinder assembly is powered, the lining is drawn into the container.
摘要翻译：炉耐火材料提取系统和方法包括可选择地移除的底部，其附接到与用于将无芯感应炉的耐火衬里拉入容器的容器相关联的耐火材料提取装置。炉底中的塞子部分是可选择地可移除的，以提供进入耐火衬里的底壁的通路。在衬里的底壁中形成一个开口，通过该开口插入一个提取器轴，然后将其连接到炉底的可移除的底部。轴的另一端连接到在炉的开口端处与容器相关联的活塞和气缸组件。当活塞和气缸组件通电时，衬里被吸入容器中。

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