共查询到18条相似文献,搜索用时 46 毫秒
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从原材料化学成分、生料细度、熟料的化学分析、配料的稳定性、煤料的匹配以及出窑熟料的结粒与温度方面分析了影响熟料易磨性的原因,并采取了相应的生产管控措施,效果很好.熟料易磨性得到明显改善,小磨试验时间下降3 min,P·O42.5水泥混合材掺量提高了2.3%,水泥磨台时产量上升15t/h、电耗下降0.7 kWh/t,水泥综合成本下降2.6元/t,达到了降本增效的目的. 相似文献
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在水泥生产中,粉磨电耗占总电耗一半以上,长期以来人们都在探索和研究各种降低粉磨能耗的途径。我厂针对熟料特性的改善,逐步提高水泥熟料易磨性,从而达到提高粉磨效率的目的。采用提高熟料C3S、薄料快烧的操作方式,在1年多的试验、分析、实践中,有了一定的效果,现将其方法及体会简介如下。 相似文献
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<正>1情况介绍2015年3月以来,随着水泥市场的竞争日益激烈,本着控降成本及满足资源综合利用退税的目的,我公司开始大规模使用砂岩粉末、煤矸石、转炉渣、铁选矿污泥等各种工业副产品代替天然原材料生产熟料。由于此类原料化学成分复杂,且存在多种有害微量成分,给熟料煅烧带来一定困难。出窑 相似文献
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熟料易磨性不仅受化学和矿物组成的影响,而且受熟料生产工艺参数如生料细度和均匀性、熟料煅烧温度、燃料类型、冷却速度、次要组分和微量元素等因素的影响。生料细度粗、不均匀,则熟料中有大尺寸贝利特巢和在煅烧过程未完全起化学反应的粗石英颗粒(〉45μm),过粗的石英颗粒减少阿利特生成量,熟料难磨。慢冷熟料难磨, 相似文献
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为降低生产成本,提高企业经济效益,西昌航天水泥有限责任公司对磷渣配料生产水泥熟料进行了试生产,试生产中磷渣的掺入量定为6.0%,熟料三率值定为:KH=0.92±0.02,SM=2.7±0.1,IM=1.6±0.1。试生产成功后实施了全面生产,生产中配料方案和熟料三率值基本不变,磷渣掺入量通过摸索定为5.0%。结果表明,在生料中掺入一定比例的磷渣,可以降低生产成本,提高熟料质量,获得较好的经济效益和社会效益。 相似文献
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The relationship between specific power consumption (kWh/t) and Blaine fineness attained during grinding of the Portland clinker is represented by an exponential function. This function varies by stages. For each stage the following equation may be written: In kWh/t = a + bS, where S is the Blaine fineness and a and b are constants assuming different values at each stage. The values of these constants for the first stage, up to about 250 m2/kg Blaine, are not significantly affected by the chemical composition of the clinker, while at the second stage, about 250 – 500 m2/kg Blaine, the values of the constants are affected by C3A, C4AF, K2O and MgO contents. 相似文献
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A new method of burning Portland cement clinker is studied. The microwave sintering is adopted after the raw meal is heated to certain temperature in an electric furnace. The experimental results show that after the raw meal is heated at a low electric heating temperature (1000-1200 °C) and then further sintered with microwave for 1 to 2 min, Portland cement clinkers can be formed. The f-CaO contents of the clinkers are 1-2%. It has also been found that the higher the temperature of the samples put into the microwave cavity, the shorter the time needed for microwave burning. When the temperature is up to 1300 °C, the sample needs to be heated by microwave for only 40 s, and the f-CaO content decreases to 0.65%. It has been proved by the experiments that (1) the new burning technique can greatly increase the forming speed of Portland cement clinkers, (2) Fe2O3 can enhance the microwave clinkering. XRD patterns of the clinkers show that their mineral compositions and the characteristic XRD peaks are similar to those of clinkers by conventional burning method. 相似文献
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影响新型干法窑熟料强度的因素有:入窑物料喂料量,原燃料品质的均匀性和稳定性,煤灰分的波动,配料方案中的三率值的匹配,煅烧过程中风,煤,料,操作四者的平衡,入窑物料颗粒接触状况以及碱含量等,通过对上述影响因素的分析,提出了从熟料的煅烧,冷却,生料配制,原燃材料的选取等诸方面加强管理,确保系统在较佳状态下运行等提高熟料强度的措施。 相似文献