关于捣固炼焦焦饼收缩度的探讨

分析了捣固炼焦与顶装炼焦的焦饼收缩度差异性及其影响因素,探讨了低挥发分配煤在捣固炼焦设计和生产等方面的问题,并提出了下列措施:适当降低加热水平;设定合理的结焦时间;设计可调煤饼宽度的装煤车;根据配合煤Vdaf和X值调整煤饼宽度、高度及采用XD值指导生产,以保证煤饼与炉墙有足够的间隙和适宜的空间温度。

Study on coke cake shrinkage of stamp-charging coke oven

The difference of coke cake shrinkage of the stamp-charging cokemaking and top charging cokemaking as well as the influence factors were analyzed. The problems of low volatile coal blend in stamp-charging cokemaking design and production were studied, and the following measures were put forward： heating level was properly reduced ; the coking time was rationally set; the charging car which can adjust the width of coal cake was designed ; according to Vdaf value and X value of coal blends, the coal cake width and height were adjusted, the production was guided with XD value so as to ensure that there was enough gap between coal cake and oven wall and suitable space temperature.