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Experimental study on cement clinker co-generation in pulverized coal combustion boilers of power plants

机译:电厂煤粉锅炉水泥熟料联产试验研究。

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摘要

The idea to co-generate cement clinker in pulverized coal combustion (PCC) boilers of power plants is introduced and discussed. An experimental study and theoretical analysis showed this idea to be feasible and promising. By adding quick lime as well as other mineralizers to the coal and grinding the mixture before combustion, sulfoaluminate cement clinker with a high content of silicate (SCCHS) could be generated. The main mineral phases in SCCHS are 2CaO centre dot SiO_2 (dical-cium-silicate), 3CaO centre dot 3Al_2O_3 centre dot CaSO_4 (calcium-sulfoalumi-nate) and 2CaO centre dot Al_2O_3 centre dot SiO_2 (gehlenite). Performance tests showed that the SCCHS met the requirements for utilization in common construction. Based on this idea, zero solid waste generation from PCC would be realized. Furthermore, thermal power production and cement production could be combined, and this would have a significant effect on both environmental protection and natural resource saving.
机译:介绍并讨论了在电厂粉煤燃烧(PCC)锅炉中联产水泥熟料的想法。实验研究和理论分析表明该想法是可行的和有希望的。通过在煤中加入生石灰和其他矿化剂,并在燃烧前研磨混合物,可以生成具有高硅酸盐含量的硫铝酸盐水泥熟料(SCCHS)。 SCCHS中的主要矿物相为2CaO中心点SiO_2(硅酸二钙),3CaO中心点3Al_2O_3中心点CaSO_4(钙铝磺酸钙)和2CaO中心点Al_2O_3中心点SiO_2(白云母)。性能测试表明,SCCHS符合普通建筑的使用要求。基于这一想法,将实现PCC零固体废物的产生。此外,可以将火力发电和水泥生产结合起来,这将对环境保护和自然资源节约产生重大影响。

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