浅谈我厂中碱球窑采用鼓泡技术的体会

1 概述七十年代末,八十年代初,我国在玻璃熔窑中开始对熔融玻璃液采用鼓泡新技术,对鼓泡机理,作用和应用等技术进行了大量的试验和探讨,取得了许多经验,收集了大量的数据.我厂由于中碱球主要原材料硅砂中Fe_2O_3,K_2O含量较高,玻璃液透热性差、粘度大,熔化温度相对要求较高,而我厂使用的燃料为发生炉煤气,熔化温度很难保证稳定,一旦温度波动,玻璃液澄清效果不好,玻璃球中出现许多密集小气泡,玻璃球条纹消失距离很高,二次冒泡温度低,玻璃球质量难以保证,拉丝效果不好.起初,我厂准备更换鄱阳湖砂为石英砂,但这会大大增加     

水冷式鼓泡器在光伏玻璃生产中的应用

鼓泡技术对玻璃产量与质量的提高以及降低能耗、延长窑炉使用寿命等方面具有重要作用。基于水冷式鼓泡器的特性，在光伏玻璃生产中使用水冷式鼓泡器，可实现低温熔制技术，提升熔化效率，提高玻璃质量，节能降耗。     

空气鼓泡器对玻璃熔窑内流动和传热特征影响的数值模拟

本文采用数值方法模拟了空气鼓泡器对窑炉内玻璃液流动和传热特征的影响,给出了采用或不采用鼓泡技术时窑炉内玻璃液流动和传热的二维数值计算结果.结果表明,鼓泡器对增强玻璃的流动和传热有显著作用,合理采用该技术则能明显提高玻璃质量.     

鼓泡技术在节能型玻璃纤维池窑上的应用探讨

介绍了玻璃液鼓泡的过程、作用和应用实施的情况。鼓泡技术的实施有效改善了玻璃液质量,减少微气泡数量,加强了上层玻璃液与深层玻璃液间的热交换,提高了深层玻璃液温度,起到了强制均化作用,达到了提高成品内在质量、节支降耗、增产提效的目的。     

鼓泡孔的形式及其配置方法

过去,在连续熔化玻璃的方法中,被加热的玻璃表面和底层玻璃液之间存在着温差。为加速熔化和澄清,采用能够在熔窑内产生和增大对流的鼓泡器,通过鼓泡搅拌,不仅能提高熔窑的总效率,而且减少温度梯度,使表面和底层玻璃液之间的温度尽量均匀一致。     

玻璃液的炉底鼓泡

玻璃池炉装置炉底鼓泡器,对提高熔化率,降低燃料单耗,加速玻璃液的澄清、均化,都具有较好的效果。特别是在熔制深色玻璃液或粘稠的玻璃液时,其效果更为显著。 在上海玻璃搪瓷研究所、公司窑炉改革小组的配合下,以上海玻璃瓶一厂的壹座横火焰流液洞池炉作为试点,两次装置了炉底鼓泡器。第二次所安装的鼓泡,已经连续运行半年,情况良好。在熔制全粉料时,熔化率是1.5吨/米~2·天(熔化面积25米~2,出料38吨),重油单耗     

最新玻璃熔窑鼓泡技术——低频鼓泡和精密控制低频鼓泡

介绍了鼓泡技术强化玻璃熔制的作用和机理,连续式鼓泡、脉冲式鼓泡和低频鼓泡技术的特点,指出了玻璃熔窑选用鼓泡技术应注意的几个问题,分析了选用强化熔制技术的经济性。     

鼓泡系统在盖板玻璃生产中的应用

高强盖板玻璃由于其优异的耐划伤、抗冲击性能,在手机屏领域广泛应用,但是却由于其难熔化、难澄清的特点,在普通的玻璃窑炉中难以得到优质玻璃液.在浮法玻璃窑炉中应用鼓泡系统,为提高玻璃液的熔化澄清质量提供一个思路.     

水处理技术在超薄玻璃生产线上的应用

对超薄玻璃生产线所使用的循环水进行处理,采取一系列行之有效措施确保拉边机、鼓泡器及各换热器使用的安全和可靠性.     

中国专利文摘（玻璃部分）

玻璃液鼓泡管，一种玻璃窑炉定量泄料装置，玻璃板烘弯成型模具，玻璃板烘弯成型模具，臭氧与水自动混合器。[编者按]     

稀释风在浮法玻璃流道玻璃液温度控制中的应用

简述了浮法玻璃流道玻璃液温度辅助控制原理,介绍了稀释风对流道玻璃液温度辅助控制的几种方式,并比较了各种辅助控制方式的控制效果。     

浅议浮法玻璃气泡问题的分析与解决

在生产实践中,玻璃产品中的气泡问题一直是困扰玻璃生产厂家的一大难题。本文介绍了某玻璃企业玻璃产品出现气泡以后的观察、分析和解决过程,提出气泡的形成、变化、消失、再出现的过程,是气体在玻璃熔体中溶解和扩散的结果,了解各种气体在玻璃熔体中的特性和行为方式,有针对性地确定好玻璃熔化的温度曲线和燃料分配,这对减少玻璃中气泡是很重要的。     

Effect of Air Bubbling on Circulation and Heat Transfer in a Glass-Melting Tank

This paper reports a numerical methodology to simulate the effect of air bubblers on glass-melt circulation and heat transfer in a glass-melting tank. Considering the high velocity and short residence time of the rising air bubbles, heat transfer and mass transfer between air bubbles and the glass melt are neglected. Using existing empirical relations, the momentum exchange between a stream of air bubbles and the glass melt is calculated by considering bubble shape, size, and relative velocity and the thermophysical properties of the air and glass melt. Representative results of three-dimensional numerical simulations for flow and heat transfer with and without air bubblers are presented for a container-glass-melting tank. The results show a significant effect of air bubblers on glass circulation patterns and the enhancement of heat transfer from the combustion space to the molten glass and from the molten glass to the batch.     

Relation Between Melt Treatment and Glass Fiber Strength

The scatter usually seen in strength data for virgin E-glass fibers can be reduced to a very low level by controlling the thermal history of the glass melt from which the fibers are formed. Provided the glass melt is heated substantially above the drawing temperature, strengths of subsequently produced groups of 10 specimens will have a coefficient of variation of ∽1%. Unless glass is prevented from stagnating in the nozzle of the fiber-forming apparatus during a pause in the drawing operation, a secondary effect, associated with the spontaneous creation of defects in the glass in the nozzle, causes fibers produced immediately after such a pause to exhibit low strengths and high scatter.     

芒硝及玻璃氧化还原数对玻璃液澄清效果的影响

分别研究了不同的芒硝及碳粉含率对玻璃液澄清效果的影响，并从氧化还原数（ＲＥＤＯＸ）这一量化的角度考虑熔制气氛对玻璃液澄清效果的影响。结果表明：当配合料中芒硝含率５％，碳粉含率为３％，玻璃氧化还原数约为１５时，玻璃液澄清效果最好。     

鼓泡技术在玻璃生产中的应用

鼓泡技术应用于玻璃生产中,能够提高玻璃产品质量,增加产量,降低成本,延长窑炉使用寿命,降低SO2、NO X的排放量等。介绍了水冷式鼓泡器和风冷式(干式)鼓泡器的结构特点、安装特性、适用范围以及对于不同组成玻璃的应用效果,鼓泡技术投资少,见效快,效益高。     

分料技术在玻璃熔化中的应用

分料技术是玻璃熔化的一种新理念,通过该技术的实施可以增强玻璃液的横向对流,稳定泡界线,明显提高玻璃液质量。文中对该技术的实施要点进行了阐述分析。     

浮法生产中的深层卡脖水包

浮法玻璃生产中卡脖深层水包被广泛的应用,本文阐述了浮法玻璃窑内玻璃液的回流对生产的影响及卡脖水包如何通过影响液流来影响生产的。     

Conditions for Transformation and Equilibrium of Iron Oxides in Glass Melting

It is demonstrated that transformations of iron oxides in glass melting occur mainly in the solid phase. The ratio between the two forms of iron oxides in a glass melt is determined by the melt temperature. Achieving an equilibrium with the gaseous medium requires a long time due to high melt viscosity and low diffusion coefficients. To ensure high service parameters in products, one needs stability of raw material compositions and melting process parameters, including diathermancy of the melt.     

Segmented copolymers of poly(phenylene ether) and polyester

Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) (PPE) segments with terephthalic methyl ester end groups (PPE-2T, 3500 g/mol) and poly(dodecane terephthalate) (PDDT) were made via a polycondensation reaction in the melt. The inherent viscosities of the segmented copolymers were high. The thermal properties of the copolymers were studied by DMA. The segmented block copolymers had a transparent melt at low (12 wt%) PDDT contents. The segmented block copolymers had at higher PDDT contents a non-transparent melt and two glass transition temperatures. The glass transition temperature of the PPE phase decreased strongly with PDDT content in the copolymer. The glass transition temperature of the PDDT phase increased moderately with PPE content. At low PPE contents the modulus of the PDDT increased strongly with increasing PPE content.