砂芯烘窑的改进宝鸡市第二水泵厂（宝鸡７２１００１）张益忱本厂原有砂芯烘干窑的火焰是由火室经地沟火道顶部的出火孔直接进入工作室的，这样的烘干窑工作室内温度不均匀，用它烘干砂芯有的过烧，有的未完全烘干，且控制困难。改造后，设计的烘干窑为左右两个燃烧火室，... Sand core oven improvement Baoji second pump factory (Baoji 721001) Zhang Yichen Our original sand core drying kiln flame through the fire room at the top of the fire fissure hole directly into the studio, such a drying Kiln temperature in the studio is not uniform, use it to dry the sand core some over-burning, and some not fully dried, and difficult to control. After the transformation, the design of the drying kiln is about two combustion chamber, ...