公开(公告)号：US5058784A

公开(公告)日：1991-10-22

申请号：US597662

申请日：1990-10-17

申请人： Ulrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

发明人： Ulrich Hintzen ,  Ernst Luhrsen ,  Andreas Schuler

IPC分类号： B22D11/10 ,  B22D41/00 ,  B22D41/14 ,  B22D41/18 ,  B22D41/42

CPC分类号： B22D41/14 ,  B22D41/186

摘要： A closing and/or regulating apparatus for tapping molten metal from the interior of the metallurgical vessel includes an inner refractory pipe having extending through a wall thereof at least one opening and an outer refractory pipe fitted over the inner pipe and having extending through a wall thereof at least one opening. Outer and inner surfaces of the inner and outer pipes, respectively, define mating sealing surfaces. One of the pipes is fixedly mounted to a metallurgical vessel, and the other pipe is movable axially and/or rotatably relative to the one pipe to thereby selectively bring the openings to the two pipes relatively into and out of alignment. The inner pipe has adjacent an inner end thereof at a position inwardly of the opening therein a closure closing the interior of the inner pipe. The outer pipe defines therein a space forming a gas distribution chamber at a location confronting the closure. A gas, for example an inert gas, is introduced into the gas distribution chamber such that the gas passes therefrom between the sealing surfaces and into the openings.

摘要翻译： 用于从冶金容器内部排出熔融金属的封闭和/或调节装置包括内部耐火管，该内部耐火管具有延伸通过其壁的至少一个开口和外部耐火管，该耐火管安装在内部管上并且延伸穿过其内壁 至少一个开口。 内管和外管的外表面和内表面分别限定配合密封表面。 一个管道固定地安装在冶金容器上，而另一个管道可相对于一个管子轴向和/或可旋转地移动，从而有选择地使两个管道的开口相对地进入和离开对准。 内管在其开口的内侧的位置处邻近其内端，封闭封闭内管内部的封闭件。 外管在其中限定在与封闭件相对的位置处形成气体分配室的空间。 将气体，例如惰性气体引入到气体分配室中，使得气体在密封表面之间通过，并进入开口。

公开(公告)号：US4737326A

公开(公告)日：1988-04-12

申请号：US802222

申请日：1985-11-26

申请人： Ludwig Wirth ,  Ingo Elstner ,  Ulrich Hintzen ,  Rudolf Ganz ,  Miroslav Rausch ,  Robert Burger

发明人： Ludwig Wirth ,  Ingo Elstner ,  Ulrich Hintzen ,  Rudolf Ganz ,  Miroslav Rausch ,  Robert Burger

IPC分类号： B01D39/20 ,  B28B1/52 ,  C04B14/46 ,  C04B30/02 ,  F27B14/10 ,  F27D1/00 ,  F27D1/16 ,  C04B33/32

CPC分类号： B28B1/52 ,  B01D39/2086 ,  C04B14/46 ,  C04B30/02 ,  F27D1/0009 ,  F27D1/16 ,  F27B2014/106 ,  F27D1/1626 ,  F27M2003/025

摘要： Process for the production of refractory shapes of ceramic fiber-containing mateial, wherein a slurry of refractory fibers and particulate refractory materials is produced in water, the particulate refractory materials are flocculated on the fibers by use of a flocculant, and the desired shape is produced by dewatering the slurry in a suitable mold that enables the water to be removed, and the shape is dried. At least 90% of the fibers have a maximum length of not more than 500 .mu.m; flocculant is added as an aqueous solution to the dispersion of the fibers and particulate refractory material; and pressure is applied to the shape being formed during the dewatering of the slurry to form the desired shape in order to compress the shape.

摘要翻译： 用于生产含陶瓷纤维材料的耐火形状的方法，其中在水中产生耐火纤维和颗粒状耐火材料的浆料，所述颗粒状耐火材料通过使用絮凝剂在纤维上絮凝，并且产生所需的形状 通过使浆料在合适的模具中脱水，使得水能够被除去，并且形状被干燥。 至少90％的纤维最大长度不超过500μm; 将絮凝剂作为水溶液加入到纤维和颗粒耐火材料的分散体中; 并且对浆料脱水期间形成的形状施加压力以形成所需的形状以压缩该形状。