Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and system for preparing steel slag ceramsite
The invention discloses a method and a system for preparing steel slag ceramsite. Steel slag is used as the main raw material, and one or more industrial solid waste materials such as blast furnace slag, clay, and waste porcelain are used as auxiliary materials, and a fired brick is manufactured by firing at high temperature. The method includes grinding the steel slag to 100-500 microns to obtainsteel slag powder, and grinding the auxiliary materials to 50-200 microns to prepare auxiliary material powder; mixing a binder and water to prepare binder slurry; mixing the steel slag powder, the auxiliary material powder and the binder slurry according to a certain ratio in a granulator to prepare spherical masterbatch; pelleting the spherical masterbatch in a pelleting machine to prepare rawmaterial pellets, drying, and firing at 900-1250 DEG C to prepare the steel slag ceramsite. The bulk density of the steel slag ceramsite prepared by the invention reaches 500 kg/m<3> to 1100 kg/m<3>,the cylinder compressive strength reaches up to 35 MPa, the content of free calcium oxide in the ceramsite is less than 0.5 wt%, stability is good, a problem that steel slag volume stability is poor is solved, facilitating large-scale resource utilization of the steel slag.
本发明公开了一种制备钢渣陶粒的方法与系统，以钢渣为主要原料，以高炉矿渣、粘土、废瓷等一种或多种工业固体废物为辅料，在高温下烧制成烧结砖。具体方法如下：钢渣粉磨至100微米～500微米，制成钢渣粉，辅料粉磨至50‑200微米制成辅料粉；粘结剂和水混合制备成粘结浆液；钢渣粉、辅料粉和粘结浆液按照一定比例在造粒机中混合，制备成球母；球母再经成球机中成球，制备成生料球，干燥后置于900℃‑1250℃的温度范围内烧制，制成钢渣陶粒。本发明制备的钢渣陶粒的堆积密度达到500kg/m‑1100kg/m，筒压强度最高达到35MPa，陶粒中的游离氧化钙含量低于0.5wt％，安定性好，解决了钢渣体积安定性不良的问题，有利于钢渣的大规模资源化利用。
Method and system for preparing steel slag ceramsite
The invention discloses a method and a system for preparing steel slag ceramsite. Steel slag is used as the main raw material, and one or more industrial solid waste materials such as blast furnace slag, clay, and waste porcelain are used as auxiliary materials, and a fired brick is manufactured by firing at high temperature. The method includes grinding the steel slag to 100-500 microns to obtainsteel slag powder, and grinding the auxiliary materials to 50-200 microns to prepare auxiliary material powder; mixing a binder and water to prepare binder slurry; mixing the steel slag powder, the auxiliary material powder and the binder slurry according to a certain ratio in a granulator to prepare spherical masterbatch; pelleting the spherical masterbatch in a pelleting machine to prepare rawmaterial pellets, drying, and firing at 900-1250 DEG C to prepare the steel slag ceramsite. The bulk density of the steel slag ceramsite prepared by the invention reaches 500 kg/m<3> to 1100 kg/m<3>,the cylinder compressive strength reaches up to 35 MPa, the content of free calcium oxide in the ceramsite is less than 0.5 wt%, stability is good, a problem that steel slag volume stability is poor is solved, facilitating large-scale resource utilization of the steel slag.
本发明公开了一种制备钢渣陶粒的方法与系统，以钢渣为主要原料，以高炉矿渣、粘土、废瓷等一种或多种工业固体废物为辅料，在高温下烧制成烧结砖。具体方法如下：钢渣粉磨至100微米～500微米，制成钢渣粉，辅料粉磨至50‑200微米制成辅料粉；粘结剂和水混合制备成粘结浆液；钢渣粉、辅料粉和粘结浆液按照一定比例在造粒机中混合，制备成球母；球母再经成球机中成球，制备成生料球，干燥后置于900℃‑1250℃的温度范围内烧制，制成钢渣陶粒。本发明制备的钢渣陶粒的堆积密度达到500kg/m‑1100kg/m，筒压强度最高达到35MPa，陶粒中的游离氧化钙含量低于0.5wt％，安定性好，解决了钢渣体积安定性不良的问题，有利于钢渣的大规模资源化利用。
Method and system for preparing steel slag ceramsite
一种制备钢渣陶粒的方法与系统
FAN HAIHONG (Autor:in) / LYU MENGQI (Autor:in) / LI DAWEI (Autor:in) / MI XIAOFAN (Autor:in) / JIA LUWEI (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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