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发明公开
CN101717218A 半干法脱硫灰与矿渣复合掺合料及其制备方法 无效 - 撤回

半干法脱硫灰与矿渣复合掺合料及其制备方法
摘要：
本发明是一种半干法脱硫灰与矿渣复合掺合料，该复合掺合料的组分为：在矿渣中掺入的半干法脱硫灰为3wt％～8wt％。制备方法为：使用半干法烟气脱硫产生的脱硫灰和炼钢产生的高炉矿渣经过干燥处理，保证含水量小于1％；在矿渣中掺入3wt％～8wt％的半干法脱硫灰，同时要保障混合后三氧化硫、氯离子含量不超过现行矿渣粉标准，再将上述混合物进行粉磨，粉磨至比表面积达到300m2/kg～500m2/kg，控制产物的80μm筛余量在10％以内。脱硫灰的资源化使用可以减少对土地的占用，防止其堆积过程中对生态环境破坏，同时又变废为宝，创造经济效益。
摘要（英）：

The invention relates to a composite blend of semi-drydesulphurization ash and slag. The composite blend comprises 3-8 wt% of semi-dry desulphurization ash doped in slag. A preparation method comprises the following steps of: drying the semi-dry flue gas desulphurization ash and blast furnace slag generated in steel making to ensure that the water content is smaller than 1%; doping 3-8 wt% of semi-dry desulphurization ash in the slag while ensuring that the contents of sulfur trioxide and chloridion after mixing are not more than the traditional slag powder standard; grinding the mixture until a specific surface area reaches 300-500 m<2>/kg; and controlling the 80mum screen residue weight of the product to be within 10%. The recycle of the desulphurization ash can lessen land occupation, avoid damaging the biological environment in a piling process and create economic benefits by turning waste into wealth.

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