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| kiln ringing; rotary-kiln ringing (【技】回转窑高温带内壁发生的影响到炉子正常操作的炉料环状粘附现象。防止回转窑结圈的主要措施有：①提高球团矿强度，增加球团矿耐磨性；②采用反应性好、灰分熔点高的煤作为还原剂；③窑内高温带保持强还原性操作；④采用尽可能低的还原温度；⑤采用机械的方法，定期处理回转窑高温带内壁的粘接物。) | |||
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