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Ceramsite preparation method using waste incineration fly ash and ceramsite prepared by method
The invention discloses a preparation method of ceramsite by utilizing waste incineration fly ash and the ceramsite prepared by the preparation method. According to the invention, the waste incineration fly ash is used as a raw material, limestone and a high-silicon substance are added, and the generation amount of a liquid phase in a roasting process is controlled by regulating and controlling the mass ratio of the main components as follows: CaO/SiO2=0.2-0.35, and (SiO2+Al2O3)/(CaO+Fe2O3+MgO)=5-8. Therefore, the cylinder compressive strength of the ceramsite is improved, and the roasting temperature is reduced. The waste incineration fly ash, the limestone, the high-silicon substance and water are uniformly mixed according to the mass ratio, pelletizing is conducted, drying is conducted, and roasting is conducted at the temperature of 800-1200 DEG C for 5-30 minutes to obtain the ceramsite with excellent performance. The method has the advantages of being simple in process, low in production cost, high in resource utilization rate, environmentally friendly and the like, thorough detoxification and efficient resource utilization of the waste incineration fly ash can be synchronously achieved, raw materials can be provided for the ceramsite industry, and dependence on natural raw materials is reduced.
本发明公开了一种利用垃圾焚烧飞灰的陶粒制备方法及制得的陶粒。本发明以垃圾焚烧飞灰为原料，添加石灰石和高硅物质，通过调控主要组分质量比为：CaO/SiO2＝0.2～0.35，(SiO2+Al2O3)/(CaO+Fe2O3+MgO)＝5～8，来控制焙烧过程液相的生成量，从而提高陶粒的筒压强度，降低焙烧温度。将满足上述组分质量比的垃圾焚烧飞灰、石灰石、高硅物质和水混合均匀，经造球、干燥后，在800～1200℃温度下焙烧5～30min，即可得到性能优异的陶粒。本发明具有工艺简单、生产成本低、资源利用率高、环境友好等诸多优点，不仅可同步实现垃圾焚烧飞灰的彻底解毒和资源化高效利用，而且可为陶粒工业提供原料，减少对天然原料的依赖。
Ceramsite preparation method using waste incineration fly ash and ceramsite prepared by method
The invention discloses a preparation method of ceramsite by utilizing waste incineration fly ash and the ceramsite prepared by the preparation method. According to the invention, the waste incineration fly ash is used as a raw material, limestone and a high-silicon substance are added, and the generation amount of a liquid phase in a roasting process is controlled by regulating and controlling the mass ratio of the main components as follows: CaO/SiO2=0.2-0.35, and (SiO2+Al2O3)/(CaO+Fe2O3+MgO)=5-8. Therefore, the cylinder compressive strength of the ceramsite is improved, and the roasting temperature is reduced. The waste incineration fly ash, the limestone, the high-silicon substance and water are uniformly mixed according to the mass ratio, pelletizing is conducted, drying is conducted, and roasting is conducted at the temperature of 800-1200 DEG C for 5-30 minutes to obtain the ceramsite with excellent performance. The method has the advantages of being simple in process, low in production cost, high in resource utilization rate, environmentally friendly and the like, thorough detoxification and efficient resource utilization of the waste incineration fly ash can be synchronously achieved, raw materials can be provided for the ceramsite industry, and dependence on natural raw materials is reduced.
本发明公开了一种利用垃圾焚烧飞灰的陶粒制备方法及制得的陶粒。本发明以垃圾焚烧飞灰为原料，添加石灰石和高硅物质，通过调控主要组分质量比为：CaO/SiO2＝0.2～0.35，(SiO2+Al2O3)/(CaO+Fe2O3+MgO)＝5～8，来控制焙烧过程液相的生成量，从而提高陶粒的筒压强度，降低焙烧温度。将满足上述组分质量比的垃圾焚烧飞灰、石灰石、高硅物质和水混合均匀，经造球、干燥后，在800～1200℃温度下焙烧5～30min，即可得到性能优异的陶粒。本发明具有工艺简单、生产成本低、资源利用率高、环境友好等诸多优点，不仅可同步实现垃圾焚烧飞灰的彻底解毒和资源化高效利用，而且可为陶粒工业提供原料，减少对天然原料的依赖。
Ceramsite preparation method using waste incineration fly ash and ceramsite prepared by method
一种利用垃圾焚烧飞灰的陶粒制备方法及制得的陶粒
GU FOQUAN (author) / LONG YUYANG (author) / SHEN DONGSHENG (author) / PU KAI (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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