关于STEIN退火窑生产12mm浮法玻璃的探讨

随着浮法玻璃工业的迅速发展,如何改善和提高玻璃的退火质量,越来越引起各厂家的关注.退火技术是浮法厚玻璃生产中的关键因素,它将直接影响到玻璃产品的质量,也将影响到玻璃的生产、储存、运输、深加工等.近年来我国不少浮法生产线采用STEIN公司的退火窑,它在生产控制技术上有一定的特点.本文对STEIN退火窑生产12 mm浮法玻璃的退火控制做了简要分析.     

总投资33亿最大节能门窗基地落户河北

2009年7月27日,国内最大浮法玻璃制造加工基地山东巨野巨润建材第四条烀法玻璃生产线正式投产。据了解,该玻璃生产加工基地计划建造8条玻璃生产线,年生产1．6-25毫米厚度超白特种优质浮法玻璃及低辐射镀膜玻璃（3555万重量箱）,占整个山东地区玻璃总产量的50％,是国内最大浮法玻璃制造加工基地。第四生产线的投产为当地经济发展起到积极作用。     

如何提高浮法玻璃退火窑传动系统的安装精度

我国浮法玻璃自问世以来,浮法玻璃技术日益完善,生产出的浮法玻璃规格品种日渐齐全,从3mm到19 mm厚的玻璃已达到稳定批量生产,玻璃质量逐步提高.但随着科学技术的进步,工业技术水平和人民生活水平的提高,市场对3 mm以下薄玻璃需求日益增大,质量要求也越来越高.     

山东巨野——国内最大浮法玻璃基地投产过半

7月27口,国内最大浮法玻璃制造加工基地山东巨野巨润建材第四生产线正式投产。据了解,该玻璃生产加工基地计划建造8条玻璃生产线,年生产1．6-25mm厚度超白特种优质浮法玻璃及低辐射镀膜玻璃3555万重量箱,占整个山东地区玻璃总产量的50％,是国内最大浮法玻璃制造加工基地。第四生产线的投产为当地经济发展起到积极作用。     

改进退火窑设计的建议

近年来我国浮法线的数量不断增加，已达到130多条生产线，可以说目前我国的浮法玻璃生产技术已达到较成熟的水平，并向着生产超薄和超厚玻璃的方向发展，本文结合近年来国内退火窑的设计提出一些看法和改进意见，以提高退火窑的经济性、可操作性、灵活性和减少退火窑对产品质量的影响，满足优质浮法玻璃生产对退火窑的要求。     

浅谈锡槽内的硫污染

通过对国内某条浮法玻璃生产线锡槽内硫污染的诊断、分析,描述了锡槽内硫污染对玻璃质量及生产的负面影响,分析总结了锡槽内硫污染的来源,介绍了采取的相应技术调整措施及效果.     

浮法玻璃生产线冷端随动掰边和随动纵掰的应用

在当前经济和绿色环保环境下,越来越需要提高玻璃品质,降低生产成本,提高性价比。浮法玻璃生产线冷端为了满足生产线按等级和按规格分类取板的要求,自动化装备水平不断提高,可实现在线质量检测、优化切裁、随动掰边、随动纵掰,按质分类分片、堆垛、包装和仓储等功能,整个生产工序实现了自动控制。     

提高超薄浮法玻璃生产线冷端辊道输送精度的措施

针对我国0.7 mm和0.55 mm厚度超薄浮法玻璃生产线中冷端输送过程所存在的影响正常生产的关键问题,提出了通过提高超薄玻璃生产线冷端辊道的输送精度解决超薄玻璃的破损和划伤问题的技术方案,并在超薄浮法玻璃实际生产中得到了很好应用.     

负压输送机的设计与测定

在近代玻璃工业生产中,人们不断探求以提高速度而获得高效率,高质量产品的途径。采用浮法工艺生产平板玻璃是当前世界上生产玻璃最先进的方法。近些年来,在国内得到人们的普遍重视。浮法玻璃质量相当于磨光玻璃,其最高拉引速度为900～1200米/时,比垂直引上法拉引玻璃速度提高近十倍,在这种速度下,使用人力或一般机械是无法完成从主生产线上取下玻璃的,为适应浮法玻璃生产的高速度、连续化生产的特点,选用负压输送机可满足900米/时以上的玻璃拉引速度。     

基于莫尔条纹的玻璃缺陷检测技术研究

玻璃缺陷直接影响玻璃的质量,因而玻璃缺陷的检测成了提高玻璃质量的重要技术保障之一.在浮法玻璃生产线必须进行质量检测,对不符合格的玻璃进行切除.为有效的对玻璃缺陷进行检测,本文提出一种基于莫尔条纹的玻璃缺陷检测方法,该方法不但能够有效检测出玻璃的缺陷,同时还能根据缺陷的性质将其分类.     

乙烯酮(双乙烯酮)下游产品废水的治理技术

乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。     

A study of miscibility of blends of polybutadienes of varying microstructure

The miscibility of various amorphous polybutadienes with mixed microstructures of 1,4 addition units (cis, 1,4 and trans 1,4) and 1,2 addition units have been investigated. The studies here involved optical transparency, differential scanning calorimetry, and small angle light scattering. It was found that a 90 percent (cis) 1, 4 addition polybutadiene was immiscible with high (91 percent) 1,2 addition polybutadiene. Reduction of the 1,2 content to 71 percent induced an upper critical solution temperature (UCST) with the cis 1,4 polymer. Polybutadienes with 50 percent and 10 percent 1,2 contents were miscible above the crystalline melting temperature of the cis 1,4 polybutadiene. Immiscibility of the 91 percent 1,2 addition polymer was also found with a 10 percent 1,2 polybutadiene. The latter polymer also exhibits an UCST with the 71 percent 1,2 polymer. The results are used to interpret the characteristics of blends of polybutadienes of varying microstructure.     

几种乙炔加压设备性能的比较

阐述并比较了几种加压设备在乙炔加压清净过程中的性能和特点。     

粉煤灰中烧失量检测的不确定度分析

以F类粉煤灰为例,详细介绍了测定粉煤灰中烧失量的步骤、计算数学模型、影响测量不确定度的因素以及各项测量不确定度分量评定,人员、设备、材料、方法、环境都是影响测量不确定的因素。     

生物油的成分分析及物性测定

以添加FeCl2的ZnCl2-KCl混合熔盐裂解纤维素和秸秆,制得生物油。采用傅立叶变换红外光谱法和气相色谱-质谱法分析生物油的成分。结果表明,生物油中成分复杂,含有氧元素、多种有机化合物,主要包括酮类、醛类、酚类及羧酸类等。测定了20～80℃生物油的密度和粘度,发现生物油的密度与温度呈较好线性关系,而生物油的粘度均大于水的粘度,且不同熔盐体系对秸秆生物油的粘度无较大影响。     

Effect of degree of deacetylation of chitosan on the kinetics of ultrasonic degradation of chitosan

The objective of the study was to explore the effect of the degree of deacetylation (DD) of the chitosan used on the degradation rate and rate constant during ultrasonic degradation. Chitin was extracted from red shrimp process waste. Four different DD chitosans were prepared from chitin by alkali deacetylation. Those chitosans were degraded by ultrasonic radiation to different molecular weights. Changes of the molecular weight were determined by light scattering, and data of molecular weight changes were used to calculate the degradation rate and rate constant. The results were as follows: The molecular weight of chitosans decreased with an increasing ultrasonication time. The curves of the molecular weight versus the ultrasonication time were broken at 1‐h treatment. The degradation rate and rate constant of sonolysis decreased with an increasing ultrasonication time. This may be because the chances of being attacked by the cavitation energy increased with an increasing molecular weight species and may be because smaller molecular weight species have shorter relaxation times and, thus, can alleviate the sonication stress easier. However, the degradation rate and rate constant of sonolysis increased with an increasing DD of the chitosan used. This may be because the flexibilitier molecules of higher DD chitosans are more susceptible to the shear force of elongation flow generated by the cavitation field or due to the bond energy difference of acetamido and β‐1,4‐glucoside linkage or hydrogen bonds. Breakage of the β‐1,4‐glucoside linkage will result in lower molecular weight and an increasing reaction rate and rate constant. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3526–3531, 2003     

分解炉扩径的技术改造

我厂3号回转窑(Φ4m×60m)生产线在1996年年底由SP窑(产量912t/d)改为NSP窑(产量1320t/d),预分解系统为四级旋风预热器带离线式分解炉     

Process of acceleration of filtration of viscose

Conclusions It is significant that the purification on a single passage of viscose through porous ceramic corresponds to the result of a two-stage filtration of it in industrial filter-presses with standard fillings.Kiev Combine. Kiev Technological Institute of Light Industry. Translated from Khimicheskie Volokna, No. 3, pp. 20–22, May–June, 1969.