Method for producing white cement

一种生产白水泥的方法

  • Inventors: WANG BO
  • Assignees: 烟台大学
  • Publication Date: September 07, 2011
  • Publication Number: CN-102173618-A

Abstract

The invention discloses a method for producing white cement at a low temperature from shells instead of limestone. The ingredients of the white cement are as follows (in percentage by weight): 80 to 90 percent of mixed material and 10 to 20 percent of clinker. The preparation method of the mixed material comprises the following steps of: preparing fine powder of shells, kaolin, natural gypsum; and calcining in a high-temperature furnace respectively, and thoroughly mixing them at a ratio of 5: 3: 2. The preparation method of the clinker comprises the following steps of: thoroughly mixing 85% of shell powder and 15% of kaolin powder, calcining at 1350 DEG C, and bleaching in cold water for 1 minute. The invention has the advantages that: the method for preparing white cement from shells has a low calcination temperature, achieves the purpose of waste utilization and saves energy; and the product is healthy and environment-friendly, and the method conforms to the principles of sustainable development in the building material industry and has wide market prospects.
本发明公开了一种利用贝壳替代石灰石低温制备白水泥的方法。白水泥配方及重量百分含量是混合材80-90%,熟料10-20%。混合材制备方法是将贝壳、高岭土、天然石膏制备细粉。高温炉分别煅烧,按比例5∶3∶2混合均匀。熟料制备方法是85%贝壳粉与15%高岭土粉均匀混合,在1350℃煅烧,冷水漂白1min。优点:贝壳制备白水泥,煅烧温度低,利废、节能,产品健康、生态,符合建材工业可持续发展原则,具有广阔的市场前景。

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    CN-104086103-AOctober 08, 2014凤阳中都水泥有限公司Cement preparation method
    CN-104086106-AOctober 08, 2014安徽珍珠水泥集团股份有限公司一种高效水泥的生产方法