共查询到20条相似文献,搜索用时 62 毫秒
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中小水泥厂生料间歇式均化库系统设计浅谈李昕和湖北省武汉建材设计研究院(430071)八十年代以来,我院已为数十个厂家设计了间歇式均化库,除少数因资金等原因未上马外,多半已投产,有些尚在建设之中,以1993年9月投运的武汉市水泥厂4座Φ6m间歇式生料均... 相似文献
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立窑水泥厂生料均化库的改造方法李振煊福建省三明市三明大学建筑设计所(365000)立窑水泥厂工艺线大多没有设计原燃材料预均化,生料均化大多是采用多库搭配机械倒库的工艺方案,所以总体均化效果很低。我们在南方立窑水泥厂进行工艺技术改造中,对生料均化库、提... 相似文献
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在干法水泥生产过程中,生料均化库对稳定入窑生料成分起着重要的作用。烟台三菱水泥有限公司采用的库容为IOO00t的o18mX47m连续式均化室生料库,投产运行前两年均化效果不理想,从1997年起,在分析原因的基础上,通过不断调试并通过两次改造,目前生料均化库运行稳定,均化效果良好。1生料库流程简介生料库流程见图1。生料库内的均化室分为4个供风区,由图中1、2‘3三台21m3/min罗汉风机供风,正常情况下两台运转一台备用;均化室外的外环区分为26个供风区,由图中4。5两台7.5m3Anin罗茨风机供风,正常情况下一台运转~台备用。2改造前… 相似文献
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江山虎球水泥有限公司1000t/d和2000t/d生产线采用的生产原料化学成分基本相同,对于Φ15m生料均化库我们分别采用了多股流均化库与切向均化库的工艺设计方案。本文对这2种均化库的工艺设计参数和投资情况进行了比较并提出了看法。 相似文献
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在现代新型干法预分解窑系统的生产运行管理中,提高入窑生料的合格率及稳定性是优质、高产、低耗、安全稳定运行的前提和保证。建立原燃材料预均化堆场及生料均化库的目的就是稳定入窑生料三率值的合格率,提高喂料稳定性。然而,很多水泥企业为了节省投资或对原燃材料的预均化认识不足等原因,设计建设时往往省去或简化了预均化场地及设备设施,仅建有生料均化圆筒库。部分水泥企业没有充分利用好生料均化库的均化效能,而仅作为生料储库使用,从而使得入窑生料组分波动大,不稳定,严重影响回转窑的熟料质量和安全稳定运转。因此,如何利用好生料均化库的现有设备设施,充分挖掘生料均化库的均化效能就成为了我们要面对的问题。 相似文献
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我公司新型干法二厂自2009年4月投入生产,均化库生料粉入预热器采用冲板流量计计量下料,后因下料计量不精确于2010年1月改为均化充气柜控制下料,并配套使用TS901型皮带秤进行物料计量,冲板流量计为备用。 相似文献
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我公司新型干法二厂2?500 t/d生产线于2009年4月投入生产,均化库生料粉入预热器采用冲板流量计计量下料,后因下料计量不精确于2010年1月改为均化充气柜控制下料,并配套使用TS901型皮带秤进行物料计量,冲板流量计改为备用。 相似文献
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A detailed study of the origin and meaning of the anodic pre-peak, A0, was carried out for polyaniline (PANI) films, which were electrochemically grown using the potential sweep method to two different upper potential limits (Type I and Type II films) on Au, Pt and GC electrodes. The observed presence of a matching cathodic peak, C0, for slowly grown Type I films, and the absence of the A0 pre-peak for rapidly formed Type II films, suggest that the pre-peak arises from the oxidation of particular PANI sites within these films, likely located near the underlying substrate. Time of cycling over the A0/C0 potential range (0 and 0.3 V) and/or holding of the potential in the reduced film state causes the A0 peak potential to shift. Simultaneous cyclic voltammetry, quartz crystal microbalance and ellipsometry measurements indicate that the positive movement of the A0 potential is related to film swelling. Long times of cycling between 0 and 0.6 V appear to cause the Type I film to anneal, resulting in a more compact PANI film, and a negative shift of the pre-peak. The pre-peak, therefore, appears to be a barometer of film water and/or solution anion content. 相似文献
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采用凝胶色谱(GPC)、DSC、密度计等方法研究了端羟基聚3-硝酸酯甲基-3-甲基氧丁环(PNMMO)的分子结构、理化和安全等性能,其密度(ρ)、生成焓(ΔHf)、玻璃化温度(Tg)和摩擦/撞击感度(H50)分别为1.26g/cm3、-1933.74kJ/kg、-30℃、0%和109.6cm,PNMMO弹性体的最大抗拉强度(σm)和最大延伸率(εm)分别为3.54~7.72MPa和253%~279%.用推进剂能量计算程序计算了PNMMO推进剂与NEPE和GAP推进剂的理论比冲.结果表明,PNMMO推进剂的理论比冲(6.86MPa)比NEPE推进剂的值68~140N·s·kg-1,比GAP推进剂的理论比冲低3~7N·s·kg-1. 相似文献
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Leon Dure III 《Journal of the American Oil Chemists' Society》1989,66(3):356-359
The storage proteins of the cottonseed are composed of α and β globulins which are homologous to the vicilins and legumins,
respectively, of the legumes. Gene sequences for members of both protein families have been determined, and the derived amino
acid compositions are presented here. The proteolytic cleavages and glycosylations involved in the processing of the preproproteins
during embryogenesis to yield the proteins found in the mature seed are outlined. 相似文献
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B. K. Kasenov B. T. Ermagambet Zh. I. Sagintaeva Sh. B. Kasenova E. E. Kuanyshbekov D. I. Smagulova 《Solid Fuel Chemistry》2014,48(3):147-148
The chemical analysis of coal from the Kushmurun deposit in Kazakhstan and its ash was performed. Data on the X-ray diffraction and thermal analysis of the coal ash are given. The chemical activity of the coal was determined. The specific heat capacity of the coal was studied by dynamic calorimetry, and its heat of combustion was calculated. 相似文献
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Characteristics of bio-foulants in the membrane bioreactor 总被引:1,自引:0,他引:1