霞石正长岩在绿色浮法玻璃中的应用研究

以霞石正长岩取代长石,按照绿色浮法玻璃的成分制备配合料并熔制玻璃。通过对熔化过程的观察和对玻璃样品有关性能测试结果的分析,讨论了霞石正长岩作为绿色浮法玻璃原料的可行性。     

一种新型玻璃原料——霞石正长岩

介绍了一种新型玻璃原料霞石正长岩在国内外的开发利用情况,着重介绍了安阳霞石正长岩的矿藏、成分、开发和生产情况。     

霞石正长岩在陶瓷釉料中的应用

霞石正长岩,在自然界中大量存在,由于其碱金属含量大,可以在釉料中代替长石使用。本文利用四川的霞石正长岩通过大量试验得到了一种对坯体适应性强,对烧成气氛不敏感的高光泽透明釉。在此釉料中加入特殊着色剂可产生小油滴斑。     

霞石正长岩的开发和应用

霞石正长岩是一种新型节能陶瓷原料。用它代替长石制备坯釉料,可成功烧制日用陶瓷、美术瓷、卫生瓷、外墙砖、釉面砖产品。精选后的尾砂可生产彩色釉面砖,具有广泛的开发应用前景。     

霞石正长岩的测定

分析霞石正长岩各组分的含量和铁矿物在矿石中的赋存状态。实验中采用了原子荧光光谱法对矿物进行了系统分析,并通过此方法分析矿石中的铁含量。     

霞石正长岩的开发和应用

霞石正长岩是一种新型节能陶瓷原料。用它代替长石制备坯釉料,可成功烧制日用细瓷、美术瓷、卫生瓷、外墙砖、釉面砖产品。精选后的尾砂可生产彩色釉面砖,具有广泛的开发应用前景。     

霞石正长岩在仿古砖无光釉中的应用

本文介绍了在传统釉料配方工艺基础上,研究了霞石正长岩精加工粉料在仿古砖无光釉中的开发与应用,并取得较好的效果。实验证明:采用霞石正长岩精加工粉料取代部分熔块、长石类熔剂等原料,有利于提高釉面的机械强度、调整坯釉结合性、降低生产成本和提高产品优等率等。     

霞石正长岩综合利用生产化工产品工艺计算

采用Excel软件中的迭代计算法对个旧霞石正长岩综合利用生产碳酸钠、硫酸钾、磷酸二氢钾产品进行了物料衡算,获得了个旧霞石正长岩之碳分母液处理流程中的蒸发水量及经多次循环后料液平衡时组成、产品规模及质量,为工艺参数的确定和项目的技术经济分析提供了依据.以5万t/a氧化铝为计算基准,个旧霞石正长岩综合利用生产化工产品的年生产规模为:碳酸钠1.605万t,硫酸钾634 t,磷酸二氢钾5.67万t,产品质量分数:碳酸钠94.40%,硫酸钾95.82%,磷酸二氢钾93.03%.物料衡算结果可根据计算基础数据自动调整,计算方法快捷、易于掌握.     

一种用霞石正长岩提铝硅钙渣制备硅灰石的新方法

在充分考虑了云南个旧霞石正长岩硅钙渣的物质组成特点的基础上,不添加额外的硅源和钙源,以较低的温度(800~900℃),煅烧1 h,将个旧霞石正长岩硅钙渣合成为质量分数80%~85%的硅灰石。制品符合中国行业标准DZ/T0207—2002的要求。     

谈微型浮法玻璃生产线

说明了微型浮法玻璃生产线的特点和与大中小型浮法玻璃生产线的主要区别,介绍了其在不同特种玻璃生产中的运用及其发展远景.     

Microstructural and technological investigation of bone China reformulated with nepheline syenite and quartz addition

In this study, bone china body was reformulated by completely replacing Cornish stone with nepheline syenite and quartz. Effect of controlled milling/mixing on the technological properties and microstructural evolution was also studied. Specimens prepared both from reformulated and controlled milled/mixed bodies were sintered between 1200 and 1250°C with 25°C increment. Sintering and technological properties of reformulated bodies were not being adversely affected but conversely, the measured flexural strength values (55 MPa) were half of the value that was published for bone china (100 MPa). Microstructural investigations showed that enlarged pore formation was the reason for strength reduction. However, improvement in particle packing by controlled milling/mixing eliminated enlarged pore formation and in response, flexural strength values increased to conventionally quoted levels. Detailed microstructural investigations revealed that the reason behind enlarged pore formation was heterogeneous distributions of body components, especially CaO and quartz grains. It was suggested that variations of CaO and SiO₂ to form improper ratio between them would affect the viscosity of glassy phase and crystallization, which would prevent gases in pores to dissolve away. The obtainment of homogenous distribution of body components by controlled milling/mixing has a strong influence on the evolution of microstructure and improvement of technological properties.     

浅谈浮法玻璃熔窑设计的几点想法

浮法玻璃熔窑是浮法玻璃生产的重要热工设备之一,设计合理与否直接关系到浮法玻璃的质量等级,广大的窑炉工作者积累了很多宝贵的经验并吸取国外先进的设计理念应用到窑炉设计当中,取得了很大的进步,但在浮法玻璃熔窑的寿命、玻璃质量、能耗等技术指标与先进的浮法玻璃熔窑仍有一定的差距,造成这些差距的因素很多,我们仅从设计角度探讨以下几个方面的问题.     

浮法玻璃窑用耐火材料的发展趋势

回顾了我国玻璃工业的发展,叙述了节能减排对高温工业的影响,介绍了玻璃工艺进步的方向,详述了玻璃工业用熔铸耐火材料和烧结耐火材料,分析了发达国家耐火行业的动向。最后,结合我国实情和新技术革命的方向,讨论了我国耐火材料行业的发展趋势。     

Sol-gel coatings on float glass

The refractive coefficients and thickness of two-sided sol-gel coatings of different compositions deposited on float glass by the immersion method are measured. It is established that the refractive coefficient on the top surface of a sample, which contacts the protective atmosphere of the melt tank during glass working, is higher and the film thickness is smaller than those on the bottom surface. This is due to the different properties of the opposite surfaces of thermally polished glass, which is related to the different tin concentrations in the surface layers. __________ Translated from Steklo i Keramika, No. 4, pp. 5–6, April, 2006.