山东省济宁市建筑设计研究所,采用保温立窑烧制粉煤灰陶粒,经多次试验已取得阶段成果,于1981年12月进行了省级鉴定。该所针对普通立窑焙烧陶粒所存在的问题进行了窑体改造,即在烧成窑壁外侧增设热风保温窑环,减少了窑壁耐火材料蓄热和散热的损失,克服了边火弱,中火强,焙烧不匀的缺陷。采用浅暗火操作,使 Jining City Institute of Architectural Design, Shandong Province, using thermal insulation kiln firing pulverized ash ceramsite, after several tests have achieved stage results, in December 1981 conducted a provincial appraisal. The kiln body was reformed for the problem of ordinary kiln roasting ceramsite, that is, a hot air kiln ring was added outside the kiln wall to reduce the loss of kiln wall refractories heat storage and heat dissipation, and overcome the weak edge fire. , Medium fire, uneven roasting defects. Use dark fire operation to make