论文部分内容阅读
在烧結法氧化鋁生产中,应用卡普隆滤布,国外已有先例。1958年,苏联伏尔霍夫鋁厂以卡普隆滤布应用于赤泥分离的沉降过滤器上及其它过滤机上,卡普隆使用周期达63小时,而—2089号过氯乙烯滤布为48小时;烏拉尔鋁厂在过滤机上試用卡普隆滤布的結果,周期为棉布的5倍,但由于卡普隆滤布的密度不够,滤液浮游物有偏高的缺点。 1960年开始,我們曾經先后做过金属絲布,玻璃絲布及合成纖維布的过滤介质試驗工作,証明卡普隆滤布具有良好的耐碱性能。我們选用的卡普隆滤布为200支11股,經緯密度50(根/公分),熔点250℃,軟化点150℃,比重
In the sintering of alumina production, the application Kapron cloth, foreign precedent. 1958, the Soviet Union Volkhov aluminum plant Kapron cloth used in the red mud separation sedimentation filter and other filters, Kapron use period of 63 hours, and -2089 perchlorovinyl filter cloth 48 hours; Ural Aluminum plant in the filter on the results of Caproni filter cloth, the cycle of 5 times the cotton, but because of Kapron cloth density is not enough, the filtrate float high shortcomings. Since 1960, we have done a metal mesh cloth, glass cloth and synthetic fiber filter media test work proved Kapron filter cloth has good alkali resistance. We use the Kapron cloth for 200 11, warp and weft density 50 (root / cm), the melting point of 250 ° C, the softening point of 150 ° C, the proportion