| 摘要 |
<p>The invention relates to refractory bricks shaped as special groove and tongue wedges employed to build the arched roofs of industrial furnaces, such as lime burning kilns, where the bricks confer said arched roofs enhanced stability and durability, by their constructive shape. According to the invention, the bricks are in the shape of truncated cone-type wedge having a groove on one face and a tongue on the other face, both of them having vertical truncated cone shape, carried out in such sizes as to permit them to interlock.</p> |
