[1]赵文伟.提高强碱槽耐腐蚀性能研究及生产实践[J].大众科技,2023,25(8):91-94.
Research and Production Practice on Improving the Corrosion Resistance of Strong Alkali Tanks[J].Popular Science & Technology,2023,25(8):91-94.
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提高强碱槽耐腐蚀性能研究及生产实践()
《大众科技》[ISSN:1008-1151/CN:45-1235/N]
- 卷:
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25
- 期数:
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2023年8
- 页码:
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91-94
- 栏目:
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电力与机械
- 出版日期:
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2023-08-20
文章信息/Info
- Title:
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Research and Production Practice on Improving the Corrosion Resistance of Strong Alkali Tanks
- 作者:
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赵文伟
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(中国铝业股份有限公司广西分公司,广西 平果 531499)
- 关键词:
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强碱液槽; 碱脆; 溴化丁基橡胶; 内衬
- Keywords:
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strong alkali liquid tank; alkali brittleness; brominated butyl rubber; lining
- 文献标志码:
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A
- 摘要:
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拜耳法生产氧化铝过程中,需要使用大量氢氧化钠补充氧化铝生产过程中的碱溶液损失,而用来盛装含氢氧化铝强碱溶液的强碱槽是采用普通碳钢材质制作而成。在长期盛装高温、高碱、低固含料浆的强碱槽,在含碱溶液的冲刷下,会容易产生碱脆现象,出现严重泄漏情况。文章针对提高强碱槽耐腐蚀性能进行研究及生产实践,结果表明,溴化丁基橡胶作为衬里材料,能够满足高温、高碱溶液条件下的使用,获得一个满足氧化铝生产工艺要求的高性能内衬橡胶强碱槽,及其施工工艺方法安全可靠。同时,可以降低槽罐泄漏风险,延长强碱槽的使用寿命。
- Abstract:
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During the production of aluminum oxide by Bayer process process, a large amount of sodium hydroxide is needed to supplement the loss of alkali solution during the production of aluminum oxide. The strong alkali tank used to contain strong alkali solution containing Aluminium hydroxide is made of ordinary carbon steel. In strong alkaline tanks containing high-temperature, high alkali, and low solid slurry for a long time, under the erosion of alkaline solution, it is easy to produce alkali brittleness and serious leakage. The article conducts research and production practice on improving the corrosion resistance of strong alkali tank. The results show that brominated Butyl rubber can be used as lining material under the conditions of high temperature and high alkali solution, so as to obtain a high-performance rubber lined strong alkali tank that meets the requirements of alumina production technology, and its construction technology is safe and reliable. At the same time, it can reduce the risk of tank leakage and extend the service life of strong alkali tanks.
参考文献/References:
[1] 肖纪美. 应力作用下的金属腐蚀[M]. 北京: 化学工业出版社,1990.[2] 任凌波,任晓蕾. 压力容器腐蚀与控制[M]. 北京: 化学工业出版社,2003.[3] 赵天琪,李花婷,王清才. 溴化丁基橡胶特性及其应用[J]. 弹性体,2012(5): 71-75.[4] GB 18241.1—2014. 橡胶衬里 第1部分: 设备防腐衬里[S]. 北京: 中国标准出版社,2014.[5] GB 8923—88. 涂装前钢材表面锈蚀等级和除锈等级[S]. 北京: 中国标准出版社,1989.[6] GB/T 531.2—2009. 硫化橡胶或热塑性橡胶压入硬度试验方法[S]. 北京: 中国标准出版社,2009.
备注/Memo
- 备注/Memo:
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【收稿日期】2023-03-09【作者简介】赵文伟,男,广西南宁人,中国铝业股份有限公司广西分公司高级工程师,从事科技研发工作。
更新日期/Last Update:
2023-08-24