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Tin tailing ceramsite and preparation method thereof
The tin tailing ceramsite is prepared by mixing tin tailing powder, silicon dioxide powder, aluminum oxide powder and a gas forming component, stirring, granulating and sintering. The method has the advantages that the problem of stockpiling of the tin tailings can be effectively solved, potential harm of the tin tailings to the environment is reduced, and resource utilization of solid waste is achieved; the content of Fe2O3 in the tin tailings is 10-15 wt%, Fe3 + can be reduced into Fe elementary substances by reacting with excessive C-containing gas forming components, and the strength of the ceramsite clinker can be effectively enhanced while gas is produced; meanwhile, the content of MgO in the tin tailings is 15-20wt%, so that the liquid phase melting temperature of the sintered ceramsite can be effectively reduced, and the energy consumption is reduced; the usage amount of the tin tailings is 38 wt% or above, and integral resource utilization of the tin tailings can be effectively achieved; after granulation, raw material balls do not need to be dried at high temperature, and power consumption is saved; after roasting is finished, the ceramsite is naturally cooled along with the furnace, so that high-temperature operation of technicians is reduced; the product has the advantages of light weight, high strength, low water absorption rate and the like, and can be used in building lightweight aggregate.
本发明公开了种锡尾矿陶粒，由锡尾矿粉末、二氧化硅粉末、氧化铝粉末和发气成分经混合、搅拌、造粒、烧结而成。本发明的优点：能有效解决锡尾矿的堆存问题，降低其对环境的潜在危害，实现固体废物的资源化利用；锡尾矿Fe2O3含量为10～15wt％，其与过量的含C发气成分反应可把Fe3+还原为Fe单质，在产气的同时能有效增强陶粒熟料的强度；同时锡尾矿中MgO含量为15～20wt％，可有效降低烧制陶粒的液相融出温度，节省能耗；锡尾矿使用量在38wt％以上，可有效实现锡尾矿的整体化资源化利用；造粒后，生料球无需高温干燥，节省电耗；焙烧结束后，陶粒随炉子自然冷却，减少技术人员的高温操作；轻质、高强、吸水率低等优点，可用于建筑轻集料中。
Tin tailing ceramsite and preparation method thereof
The tin tailing ceramsite is prepared by mixing tin tailing powder, silicon dioxide powder, aluminum oxide powder and a gas forming component, stirring, granulating and sintering. The method has the advantages that the problem of stockpiling of the tin tailings can be effectively solved, potential harm of the tin tailings to the environment is reduced, and resource utilization of solid waste is achieved; the content of Fe2O3 in the tin tailings is 10-15 wt%, Fe3 + can be reduced into Fe elementary substances by reacting with excessive C-containing gas forming components, and the strength of the ceramsite clinker can be effectively enhanced while gas is produced; meanwhile, the content of MgO in the tin tailings is 15-20wt%, so that the liquid phase melting temperature of the sintered ceramsite can be effectively reduced, and the energy consumption is reduced; the usage amount of the tin tailings is 38 wt% or above, and integral resource utilization of the tin tailings can be effectively achieved; after granulation, raw material balls do not need to be dried at high temperature, and power consumption is saved; after roasting is finished, the ceramsite is naturally cooled along with the furnace, so that high-temperature operation of technicians is reduced; the product has the advantages of light weight, high strength, low water absorption rate and the like, and can be used in building lightweight aggregate.
本发明公开了种锡尾矿陶粒，由锡尾矿粉末、二氧化硅粉末、氧化铝粉末和发气成分经混合、搅拌、造粒、烧结而成。本发明的优点：能有效解决锡尾矿的堆存问题，降低其对环境的潜在危害，实现固体废物的资源化利用；锡尾矿Fe2O3含量为10～15wt％，其与过量的含C发气成分反应可把Fe3+还原为Fe单质，在产气的同时能有效增强陶粒熟料的强度；同时锡尾矿中MgO含量为15～20wt％，可有效降低烧制陶粒的液相融出温度，节省能耗；锡尾矿使用量在38wt％以上，可有效实现锡尾矿的整体化资源化利用；造粒后，生料球无需高温干燥，节省电耗；焙烧结束后，陶粒随炉子自然冷却，减少技术人员的高温操作；轻质、高强、吸水率低等优点，可用于建筑轻集料中。
Tin tailing ceramsite and preparation method thereof
一种锡尾矿陶粒及其制备方法
HUANG XIAOFENG (author) / BAO YINZHU (author) / YANG XIBIN (author) / LI WENBIN (author) / MA LIPING (author) / CHEN MAOSHENG (author) / WU WEIQIANG (author) / ZHU FENG (author) / LIU JIAXIN (author)
2022-03-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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