炉窑砌砖中断或返工拆除时,中断或返工处的耐火砖应做成成( )A.平齐一致直梯 B.梯形斜槎 C.椭圆角直槎 D.马形斜槎

作者: rantiku 人气: - 评论: 0
问题 炉窑砌砖中断或返工拆除时,中断或返工处的耐火砖应做成成( )
选项 A.平齐一致直梯 B.梯形斜槎 C.椭圆角直槎 D.马形斜槎
答案 B
解析 (1)湿砌时,所有砖缝中泥浆应饱满,其表面应勾缝,泥浆干涸后,不得敲击砌体,比如在砌体上砍凿砖等。干砌底和墙时,砖缝内应以干耐火粉填满;干砌旋转炉窑时,锁砖后对松动的砖缝楔入钢片,直至密实;(2)砖的加工面,不宜朝向炉膛,炉子通道内表面及膨胀缝;(3)砌砖中断或返工拆除时,应做成梯形斜槎;(4)加工砖的厚度不得小于原砖厚度的2/3。

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