降低大关山硅铁钙含量攻关总结

本文主要阐述了焦粉配比、坩埚温度、硅石纯度、出铁口大小等因素对Si75增加Ca含量的影响，并提出了相应的改进措施。     

低铝硅铁的生产实践

通过１０００ｔ低铝硅铁的试炼实践表明，焦炭和硅石中的铝可以明显影响硅铁含铝量，用合成渣对硅铁进行炉外脱铝有一定效果。     

峒室大爆破法在三尖硅石矿的应用

本文通过对冷水江市三尖硅石矿使用峒室爆破法的提出，介绍了这一方法的爆破参数的设计，现场施工组织与安全保卫措施等，同时对爆破效果从几个方面进行了分析，认为在乡镇矿山使用科学技术同样可以大大提高经济效益和社会效益。本文对类似情况有一定的参考价值。     

原料粉磨系统采用湿粉煤灰、硅石配料

1 前言 在现代化的大型中卸烘干磨系统上采用湿粉煤灰、硅石替代粘土配料,目前在我国水泥行业还没有被广泛采用。吉林亚泰水泥有限公司三线原料粉磨系统,设计时是按粘土、石灰石、铁矿石三种原料配料设计的。原料磨入磨物料的综合水分<5％,台时产量为170～175t/h。自2001年8月份投产以来,在工艺系统没有变化的情况下,一直采用湿粉煤灰、硅石、铁矿石、石灰石四种原料进行配料生产,湿粉灰水分最高可达30％,入磨物料综合水分在4％～8％,台时产量最低在130t/b左右,一般在150t/h左右。产、质量波动大且影响熟料的煅烧。     

十六烷基三甲基季铵阳离子改良二氧化硅对酸性染料的吸着

The sorption behavior of acid dyes onto cetyltrimethylammonium bromide (CTAB)-modified silica as a function of pH in the aqueous medium was studied. Single-and multi-solute sorption equilibria of orange Ⅱ（OR), phenol red (PR) and Eriochrome Black T (EBT) were studied at pH 3, unbuffered water pH and pH 11. Sorption behavior of EBT could not be conducted at pH3 due to its aggregation in acidic medium. All the reaction conditions, experimental protocols and techniques remained the same throughout the sorption process. Sorption isotherms for single-solute system were fitted by the Langmuir model, while Langmuir competitive model (LCM) and the ideal adsorbed solution theory (IAST) coupled with Langmuir model (IAST/Langmuir) were used for the prediction of multisolute competitive sorption. Sorption affinities influenced by the factors like physical interactive forces between the molecules of CTA on silica and sorbate, structural limitations of the dyes based on their geometrical arrangement were investigated. Sorption affinity of OR was found to be higher than that of EBT and PR at all the pH values investigated. Magnitude of the sorption capacities was observed to be higher in acidic medium but lower in alkaline medium. Trends of the sorption affinities in multisolute system were simlar to those in single-solute system but magnitude of the sorption capacities was significantly reduced due to the prevailing competition among the sorbates.     

用硅石代替砂岩配料生产优质水泥熟料

我厂设计规模为年产水泥熟料45万t1995年。投产一直采用石灰石煤矸石和铁粉进行配料煤矸,、。石硅含量偏低几年来一直用砂岩作为校正原料熟,,料中n保持在1.9￣2.1熟料强度波动大特别是煤质,,发生变化时熟料强度偏低曾多次尝试调整生料配,。比即增加砂岩掺量但n稍有提高水泥熟料     

冲天炉熔炼节能技术的生产实践

冲天炉是铸铁车间首要的熔炼设备，具有优越的综合性能和经济技术指标。结合本车间两台7t／h大排距冲天炉的实际生产情况，对冲天炉化铁的节能技术在实际生产过程中应用做一个综合概述。     

红硅石在修炉材料中的试验与应用

红硅石作为一种新型的修炉材料,提高了炉衬寿命,稳定了铁液质量,降低了生产成本.     

细粒径磷矿中硅钙质脉石成分的浮选分离

采用反浮选法以油酸盐和烷基胺盐为捕收剂分别除去细粒径磷矿中的碳酸盐和硅质脉石以提高矿石的品位。结果表明:不管是对油酸盐反浮选捕收方解石,还是胺盐反浮选捕收硅石,增加体系的酸性都有利于提高矿石的品位,还能明显提高前者的P2O5回收率。增加捕收剂用量同样可提高矿石品位,但却减少了P2O5回收率。对于2种反浮选过程较适宜的捕收剂用量为0.5 kg/t。抑制剂的添加有利于提高2种反浮选的效果,优化后的抑制剂用量为3.5kg/t。