用耐火混凝土挡渣墙可以代替挡渣铁，且费用低，使用寿命长。
Fireproof concrete not only can be taken the place of slag iron, but also the cost is lower and use life is longer.
链条炉排尾部的挡渣铁最多使用一个采暖期，每年均须更换挡渣铁。
Analyses that the slag iron of chain grate tail use at most one heating term, which must be changed every year.
简单环形挡渣板也能产生环形回流区，在旋风燃烧室设计中可取代锥形缩口挡渣板。
Annular reverse flow zone can be found too in the combustor with the flat-straight slag baffle.
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