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1.
徐静 《硅酸盐通报》1997,16(1):100-102
本文简单阐述了使用优质耐炎材料的重要性,介绍了几种不泥窑用新型耐火材料及加强耐为材料质量管理的途径。  相似文献   

2.
我公司90年代初研制的超高温轻质倒焰窑是目前国内较为先进的大型超高温节能倒焰窑。该窑的主要特点为:以耐超高温的高强度轻质耐火材料作为窑炉内衬的结构材料,用全喷流辐射换热器,使二次热风温度达400℃以上,这是实现1800℃超高温烧在的根本保证(燃料为城市煤气);在国内大型超高温倒焰窑上首先应变频调速器控制燃烧风量,节电效果明显;全窑轻质化,不但降低了建窑成本,还因其材料蓄热量低,热稳定性好,使其升降  相似文献   

3.
我公司90年代初研制的超高温轻质倒焰窑是目前国内较为先进的大型超高温节能倒焰窑。该窑的主要特点为:以耐超高温的高强度轻质耐火材料作为窑炉内衬的结构材料;选用全喷流辐射换热器.使二次热风温度达400℃以上,这是实现1800℃超高温烧成的根本保证(燃料为城市煤气);在国内大型超高温倒焰窑上首先应用变频调速器控制燃烧风量,节电效果明显;全窑轻质化,不但降低了建窑成本,还因其材料蓄热量低,热稳定性好.使其升降温方便灵活,适应于多种高温陶瓷及高级耐火材料的烧成,而且比同类重质窑节能25%~35%.  相似文献   

4.
新型干法水泥窑用耐火材料的现状与发展   总被引:1,自引:1,他引:0  
回顾了我国水泥工业的发展,讨论了新型干法水泥窑的方向,介绍了目前大型水泥回转窑实际使用的耐火材料,阐述了耐火材料合理配置及使用技术,展望了水泥工业用耐火材料的前景。  相似文献   

5.
将现有600t/d五级旋风预热器窑生产线改造为900t/d预分解窑生产线,要根据工厂现有各种工艺条件及原、燃材料情况,结合当地海拔高度,在不对原有预热器系统及窑尾框架动手术和不影响生产的前提下,合理配置分解炉对生产线进行改造,提高产量、降低消耗,取得良好效果。  相似文献   

6.
水泥旋窑可分为传统窑和新型干法窑。传统窑包括湿法窑、干法窑和立波尔窑。这类窑虽然生产工艺不尽相同,但对耐火材料的要求基本一致。新型干法窑是指预热器(SP)窑和预分解(PC)窑。这类窑,尤其是日产2000吨以上的大型窑,对耐火材料的要求很高。目前我国传统的耐火材料多数由冶金系统和地方的耐火材料厂供应,而大型新型干法窑的耐火材料,则主要依赖进口。 1 水泥旋窑常用的耐火材料 水泥旋窑主要用铝质和镁质两类耐火材料。镁质材料也称碱性材料。常用的铝质材料有粘土砖、高铝砖和磷酸盐结合铝质砖;镁质材料有普通镁铬砖、直接结合镁铬砖和尖晶石砖。此外,常用的还有耐碱粘土砖。现  相似文献   

7.
汪敏  卢合玉 《中国玻璃》2007,32(4):15-18
退火窑辊子是退火窑的重要组成部分,本文在阐述玻璃生产对退火窑辊道性能要求的基础上,对目前大量使用钢辊作为退火窑辊道的利弊之处进行了分析,同时对其它材料能否替代钢辊进行了分析和比较。  相似文献   

8.
本文简要介绍了建材院耐炎所搂年一研制开发的一系列低水泥,超低水泥以及化学结合等各种不同类型的新型不定形耐炎材料,及其在不泥,石化,电力以及冶金等其它一些工业部门的窑炉中的成功应用。  相似文献   

9.
大型化—当今中国水泥工业的发展趋势   总被引:5,自引:0,他引:5  
本文分析了国外大型预分解窑技术的特点,并评析了国内水泥生产现状,进而阐述了开发国产大型预分解窑生产线的必要性,通过介绍天津院开发大型生产线的技术思路及大型装备的技术特点,论述了国产化大型设备的技术水平及优越的技术经济特性。  相似文献   

10.
王杰曾  周熙 《硅酸盐通报》1997,16(1):68-71,84
本文简述了白云石耐炎材料的特征,对其烧结,防水化和提高热震稳定性等关键技术作了扼要介绍,对其应用和发展前景等问题进行了讨论。  相似文献   

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1 Glass Industry and Refractories Industry Closely Connect1.1 Glass Development Drives Refractories ProgressRefractories are indispensable to glass industry; the rapid development of glass industry drives the  相似文献   

13.
玻璃熔窑蓄热室系列配套优质碱性耐火材料研制及其应用黄渊麟,丘必云,林剑成(轻工业部玻璃搪瓷工业科学研究所200052)DevelopmentandApplicationofaSeriesofHigh-DutyBasicRefractoriesforR...  相似文献   

14.
Conclusions Chromium oxide blocks developed by the Ukrainian Scientific-Research Institute of Refractories from fine-grained and coarse-grained compounds, like the chromium oxide refractories S-1215 material made by the Corhart company of the USA, ensure a high resistance in the linings of the tanks of glass furnaces producing glass fiber. Their wear occurs on account of chemical solution in the glass at temperatures above 1500°C.Magnesite-chromite refractories rapidly react with aluminoborosilicate glass and cannot be recommended for the second layer of the structure of the glass tanks.Mullite-corundum refractories are subjected to rapid wear in the crown of glass furnaces due to the interaction with vapors of the glass batch at high temperatures.In order to increase the length of the operation of fiber-producing furnaces we recommend that the first and second layers of the tank lining, the channel, and the feeder be made of chromium oxide refractories, and the suspension walls and roof of the furnace from corundum refractories. These recommendations are being used for building the furnace for a second campaign.Translated from Ogneupory, No. 1, pp. 5–12, January, 1980.  相似文献   

15.
Different chemical compositions of glasses and the individual characteristics of their reaction with zirconium-containing refractories are examined. When such refractories are used for lining glass-melting furnaces, it is necessary to consider the chemical compositions of the glass which will be melted in these furnaces.  相似文献   

16.
Conclusions When laboratory investigations are being carried out to find resistant refractories for glass tank furnaces it is desirable to make simultaneous use of indirect and direct methods of assessing corrosion resistance.The use of indirect methods for determining corrosion resistance in refractories permits us to explain the nature of the interaction between the refractory and glass, to study the nature and properties of the reaction products, and also to select refractories that form with the glass the most infusible or viscous reaction products for subsequent investigation in molten glass.The direct methods permit direct determination of the rate of corrosion of refractories by glass at working temperatures and allow us to recommend the most corrosion resistant refractories for tests in service conditions.In laboratory conditions we established that the most corrosion resistant refractories in regard to original glass used for obtaining slag sitalls are bakor-33 and dense zirconium refractory. This may be explained by the formation of viscous reaction products in the contact layer which have a protective action on the refractory.Translated from Ogneupory, No. 5, pp. 56–60, May, 1967.  相似文献   

17.
Conclusions A technology was developed for making fused-cast refractories of mullite composition from stone-like Tumanyan clays and commercial alumina for the structures of the lower courses of the walls of glass tank furnaces. The experimental refractories are 50–100% more glass resistant than normally used fireclay and high-alumina refractories made by the ceramic technology. The introduction into the composition of the batch of up to 10% ZrO2 does not greatly improve their properties.According to approximate calculations, the use of electrofusion cast mullite experimental refractories is economically desirable.Translated from Ogneupory, No. 3, pp. 21–25, March, 1967.  相似文献   

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Diffusion kinetics in contact of electromelted corundum refractories with the glass melt was investigated. The diffusion coefficients of Al3+ and their temperature dependence were determined. The basic tenets of diffusion kinetics in service of refractories in glass furnaces and feeder channels are examined.  相似文献   

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