球磨超细硅酸锆湿法粉碎生产线及工艺特点

介绍了球磨超细硅酸锆湿法生产线的工艺流程、主要设备技术性能以及工艺特点.生产实践证明,该生产线工艺设计合理、设备性能优良、生产成本低,生产的超细硅酸锆达到了国内高档陶瓷釉料乳浊剂所要求的质量品级.     

超细硅酸锆湿法分级应用研究

本文比较了超细硅酸锆湿法分级的几种方法,对超细硅酸锆湿法及分级设备使用效果进行对照比较,通过分级,使产品质量达到了国内外先进水平。     

球磨制备超细硅酸锆分段磨的实践

对广东佛山顺德盈信超细锆微粉有限公司的生产工艺流程进行了研究,将其原有流程的分级沉砂返回再磨工艺改为分级沉砂小直径研磨介质二段磨工艺,生产试验证实,球磨效率明显提高,磨料粒度D50从3.65 μm降为2.73 μm,D97从24.10 μm降为13.82 μm,球磨时间缩短了1 h,生产成本大幅下降.     

硅酸锆超细粉研磨介质损耗研究

硅酸锆超细粉是建筑陶瓷的重要原料，国内主要采用以搅拌磨进行湿法研磨生产。文中根据多年来对各种非金属磨介的试验和使用情况，比较了几种磨介的磨耗并探讨其原因，指出磨耗与研磨条件、磨介生产方法、磨介原料以及磨介尺寸的关系。     

硅酸锆超细加工中不同磨介的应用研究

为寻求生产上合适的磨介,以降低成本,提高效率,笔者对硅酸锆超细加工中不同磨介的应用情况作了比较,本文提供不同磨介的磨耗以及相应硅酸锆超细粉的粒度分布等品质表征。     

球磨工艺对钛酸钡陶瓷介电性能的影响

研究了固相法合成BaTjO3粉体时,在滚筒磨和搅拌磨中球磨BaCO3和TiO2粉体过程中,浆料的粒度、凝聚程度与球磨时间、筒容积的关系,分析了粉体均匀性对BaTiO3、陶瓷介电性能的影响.研究结果表明:TiO2粉体在球磨过程中,粒度大小没有显著变化,导致粉体凝聚的主要原因是BaCO3粉体;应先球磨BaCO3粉体10小时后再加入TjO2粉体继续球磨2小时所得的物料颗粒要比钡钛一起球磨所得的颗粒均匀,合成BaTiO3均匀性好;采用搅拌磨时,制备的BaTiO3陶瓷介电性能优于滚筒磨.     

球磨技术的理论与实践

本文在理论上分析了球磨过程中物料粉碎的机理及所发生的物理化学变化,在工艺上探讨了研究方式、磨机转速、物料的装填系数、研磨时间及研磨助剂对研磨效率的影响.     

硅酸锆超微粉的湿法分级研究

本文在离心场下对硅酸锆超微粉进行湿法分级。研究表明，分散是分级的前提，力场的设计是分级的关键。要想得到分散性能好的硅酸锆超微粉悬浮液，必须添加“软件材料”，实验验证复合分散剂对硅酸锆超微粉的分散性能最好。     

建筑卫生瓷釉料球磨工艺最佳参数的确定

通过实例讨论了以Ａｌ２Ｏ３质球石为研磨体，其装载量，球磨机转速和釉料装载量和墙面和卫生瓷釉浆细度和烧后釉面质量的影响，并确定了这些釉料的球磨最佳工艺参数。     

硅酸锆超细粉碎的工艺研究

比较了搅拌球磨机的主要磨介的特点，对用铁球磨介生产硅酸铝超细粉工艺进行了系统研究，并就生产中的几个主要环节进行了探讨。实践证明，用该工艺生产的硅酸钻超细粉实用可行。     

Wear Resistance of SiO2-Doped Y-TZP Grinding Media During Wet Milling

Grinding media 1 mm in diameter, containing 0.4 and 0.7 wt% SiO₂, were fabricated using Y-TZP powder prepared by the liquid-phase method. The wear resistance of media for grinding, with and without the addition of BaTiO₃ powder, was evaluated at 20–80°C in water and in a nonaqueous solvent, isoparaffin. A rapid increase in the media wear rate of SiO₂-undoped media at 60°C was observed using water as a solvent, but little wear was observed for isoparaffin. The operating time until a rapid increase in the wear rate was observed in water increased with the increase in the grain size of the Y-TZP media. When the media wear became stable, the media surface was observed to be smooth. This suggested that the hydration reaction of Y₂O₃ and/or ZrO₂ by OH⁻ was inhibited by an increase in the grain size, and as a consequence, the decay of the grain boundaries was suppressed. In contrast, several traces of grain loss from the grain boundaries were confirmed on the worn surface of the media when a rapid increase in the wear rate was observed. The wear resistance for grinding BaTiO₃ powder using SiO₂-doped and -undoped media was also investigated. The wear for SiO₂-undoped media increased drastically with increasing slurry temperature; however, the wear for SiO₂-doped media did not increase, but was low and stable, regardless of the slurry temperature. This indicated that the hydration reaction of Y₂O₃ and/or ZrO₂ by OH⁻ was further inhibited by the segregation of SiO₂ at the grain boundaries, and hence SiO₂-doped Y-TZP media have high wear resistance, even with increased slurry temperature.     

湿法泡花碱工艺优化

针对传统湿法泡花碱生产工艺能耗大,投资高,操作复杂,人员素质高的特点进行优化,采用废气回用、自然沉降、回配系统等措施对其进行优化,新建车间不仅能耗能降低25％以上,大大降低投资成本、维护成本、劳动强度,而且对原材料石英砂的质量要求更加宽松。     

硅酸锆凝胶注模成型工艺的研究

主要以降低ZrSiO4陶瓷浆料的粘度和提高固相含量为目的,利用正交实验研究了硅酸锆陶瓷凝胶注模成型工艺中固相含量、pH值和分散剂3个因素对料浆粘度的影响,并根据实验结果拟合出回归方程;同时通过电镜分析了坯体微观形貌的差异,制备出固相体积含量55%、粘度0.57Pa·s的硅酸锆陶瓷浆体,所得坯体微观结构均匀、团聚少.     

研磨介质对搅拌磨效率的影响

介绍了搅拌磨的主要特点，探讨了介质制度-研磨介质的性能(材质、密度、硬度等)及其使用情况(填充率、配比、形状、补给、浆液浓度等)对搅拌磨工作效率的影响。     

Comparison of Various Solvent Media Efficiency in the Grinding of a Frit Containing Zirconium Oxide

In the present work thermal and chemical properties of a glass-ceramic frit containing zirconium oxide are evaluated after milling in various polar and nonpolar solvents. Particle-size distribution is one of the main variables investigated to evaluate the efficiency of several solvents. Milling in various solvents does not affect the thermal properties of the glass while the presence of polar groups in the solvent molecule increases the cation release from the glass.     

Influence of the Interphase on Impact Properties of Zirconium Silicate Filled High-Density Polyethylene

Yellow zirconium silicate is a promising substitute for cadmium pigments used in plastics. However, the incorporation of zircon pigment in HDPE without loss of impact strength is required. By introducing the untreated pigment in the polymer, the impact strength reduces to 60% of the value for the unfilled polymer. Different types of silane coupling agents were used to regain the impact strength of the composite. Octadecylsilane acted as a wetting agent rather than as a coupling agent. The impact strength hardly improved. A vinyl functional and a methacryloxy functional silane improved the impact strength to 70% relative to the unfilled polymer. The physically bonded, interdiffused network formed by silane and polymer improves the impact strength by the flexible nature of the interphase. An azidosilane improved the impact strength only to 73%: the interphase bonded covalently to the polymer as well as to the filler, in that way improving the impact strength, but behaving as a brittle system. A relatively thick, flexible interphase bonded covalently to filler and polymer was created. This interphase improved the impact strength to the value of the unfilled polymer.     

磷矿加工采用开路湿磨流程分析

在磷酸生产工艺中，磷矿的加工是一个相当重要的过程。通过破碎、磨粉后的磷矿粒度对磷酸萃取过程中转化率的提高，虽然不是惟一的因素，但确有一定的重要性。结合云南某工程项目，通过分析比较，指出开路温磨流程完全能满足磷矿加工的工艺要求。     

湿法球磨机球磨效率的探讨

从不同材质的球磨机内衬和研磨机、球磨机的装载总量、研磨体的级配、料浆的比重和粘度等诸方面探讨了对球磨效率的影响,确定了有关参数,提供了中、高铝氧化铝球在各种球磨机中的合理级配,在生产应用中具有一定的参考价值和实用性。     

两段闭路磨矿工艺在磷酸装置配套湿法磨矿系统中的应用

介绍了两段闭路磨矿工艺技术路线、设备选择以及在云峰分公司磷酸装置配套湿法磨矿系统上的应用效果。应用结果表明,两段闭路磨矿工艺能较好解决开路磨矿存在的磷矿粒度分布呈现粗细两级分化的问题,实现磷酸装置反应工序所要求的-0.15 mm正态分布,提高磷矿转化率和磷收率,最终达到降低磷矿和硫酸消耗的目的。     

研磨介质在细磨煤系煅烧高岭土中的行为与影响

利用戒严型湿式搅拌磨,研究了磨矿介质各行为－－介质种类、介质尺雨配比和介南物料比等对煤系煅烧高土超细磨矿的影响。在优化研磨介质等条件的基础上,进行了模拟生产状态的连续磨矿试验,实现了磨矿产品－２μｍ含量大于９０％的预期结果。