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    2023-02-07 23:32:54 5810

      制备氢氧化钙除了使用生石灰和水生产外,还需要依靠专门的生产线进行生产,生产线精度决定了氢氧化钙产品本身的质量,高品质的氢氧化钙含钙量高,活性强,如果在生产中不注意生产线的把控,也会导致氢氧化钙质量变差,下面就由皕成小编为您介绍一下影响氢氧化钙生产线精度的因素。
      

      一、氢氧化钙制备方法

      

      1、石灰消化法

      
      将石灰石在煅烧成氧化钙后,经精选与水按1:(3~3.5)的比例消化,生成消石灰料液经净化分离除渣,再经离心脱水,于150~300°C下干燥,再筛选(120目以上)即为氢氧化钙成品。
      

      2、氢氧化钠过滤法

      
      将试剂氯化钙溶于水中,制得25%的水溶液,加热至80°C,然后分次加入滤过的30%的氢氧化钠溶液(可超过理论量30%),反应得到消石灰,所得浆状混合物经抽滤后洗涤,先用0.1%的氢氧化钠水溶液洗去大量氯离子,然后用蒸馏水洗至氯离子台格。
      

      3、扩散法

      
      首先配制两种溶液:一为30g重结晶的六水台氯化钙溶于50mL水中;--为12g氢氧化钠溶于50mL水并滴加少氢氧化钡的沉淀碳酸盐。将两种溶液分别装满两个50ml的烧杯中。将两个烧杯小心地放在同一个容器中,烧杯距离容器的上缘2cm,盖好容器盖,静置4周后有1cm左右的针状结晶生长出来,收集过滤,快速水洗,再依次用稀盐酸、水、乙醇、乙醚洗涤,在短时间内于110°C进行干燥。
      

      4、过滤析出法

      
      将碱金属的消石灰溶液与钙盐的水溶液作用可得氢氧化钙。将46g四水硝酸钙溶于经过煮沸排除气体的500mL的蒸馏水中,冷却至0°C,边振荡边分多次加入1mol/L的氢氧化钾溶液(不含CO2),滴加过程中保持溶液为0°C,过滤分离析出的Ca(OH)2沉淀,用12L水分若干次倾析洗涤,吸滤沉淀在硫酸(相对密度1.355)干燥器中真空干燥20h可得消石灰。
      

      二、影响生产精度的因素

      

      1、结构是否合理

      
      合理的结构可以提升氢氧化钙生产线的运行稳定性,同时对精度的提高也有很大的帮助作用,所以许多生产厂家在对设备进行设计、制造时,对结构相当重视。
      

      2、性能是否优良

      
      性能和设备加工精度之间也有紧密的联系,所以挑选到性能优良的氢氧化钙生产线对提升它的生产精度起着非常重要的作用,只有与物料相互匹配才能从根本上提升设备精度。
      

      3、操作是否得当

      
      合理的操作也是提升超细氢氧化钙生产线加工精度的主要途径之一,因此各个生产厂家有必要加大对操作者的培训力度,才能使操作者的操作更熟练,提升设备的安全性。
      
      以上就是对于影响氢氧化钙生产线精度的因素介绍,在生产氢氧化钙时,需要把控好质量、生产线的结构、性能以及工人的操作。湖南皕成科技采用先进的四代石灰生产技术,自动化程度高。生产出来的氢氧化钙品质优良、品种齐、价格低廉,欢迎您留言或致电咨询。
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