采用φ300mm ×750mm烧结杯及φ1000mm圆盘造球机模拟精粉及污泥造球烧结过程，通过改变烧结精粉及混合污泥造球的质量分数比例来分别造球，研究了不同造球量和不同成球粒度分布对烧结过程指标的影响。结果表明：烧结精粉及混合污泥造球量从0增加到100％，冷料透气性指数增加了31．5％，利用系数增加了22．3％。随小球粒度分布的变化，粒度在5～10 mm时，利用系数、成品率最大，分别为1．81 t／（h?m2）、84．34％。综合考虑烧结各项技术指标，精粉及混合污泥100％造球，粒度分布控制在5～10 m m范围，造球烧结能够取得较好效果。
The influence of different proportions of sintering powder and sludge and different size‐distribution of pel‐letizer on the sintering process index were studied by a series of sinter pot (φ300mm × 750mm) test and disc‐type pelletizing machine .The results show that when the proportions of sintering power and sludge increased from 0 to 100% ,the cold bed permeability index increased for 31 .5% ,and the sinter yield increased for 24 .8% .When size‐distribution of pelletizer was changed and ranged from 5 to 10mm ,the sinter yield and coefficient of utilization re‐spectively maximized to 84 .34% and 1 .81t/h .m2 ,respectively .Considering all the technical indexes ,to gaining the best insight into the process of pelletizer sintering , the proportions of podwer and sludge should be controlled 100% ,and size‐distribution of pellerizer should be controlled from 5 to 10 mm .
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