内燃烧砖,如焙烧火度过大,砖坯表面烧结,其内部由于产生大量气体,无法逸出,因而形成“面包砖”。为了消除“面包砖”,我们最初采取的办法是在码窑时,一排火眼码封门坯,一排火眼搭清火眼。企图在添煤焙烧时,用封门坯烧窑顶,用清火眼烧窑底,避免烧中心。但结果从火眼向窑底投煤时,细的燃料在通过窑中心高温带时,当即随着火行方向发生猛烈的燃烧,不能全部落入窑底,仍不能解决窑中部温度过高而出现“面包砖”的问题。 Internal combustion bricks, such as firing too much fire, the brick surface sintering, and its internals due to produce a lot of gas, can not escape, thus forming a “brick.” In order to eliminate the “bricks”, the first approach we adopted was to seal the door blanks with a row of fire eyelets in the yard, and use a row of fire eyes to clear the eyes. In an attempt to roast coal, the roof of the kiln was burned with a closed door, and the bottom of the kiln was burned with clear fire to avoid burning the center. However, when the coal was thrown into the bottom of the kiln from the firehole, the fine fuel passed through the kiln’s central high temperature zone and immediately burned violently along with the direction of fire, and could not all fall into the bottom of the kiln. Still, the temperature in the middle of the kiln could not be solved. “Bread brick” problem.