A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for recycling desulfurized gypsum
The invention relates to the technical field of solid waste recycling, in particular to a method for recycling desulfurized gypsum. The method comprises the following steps: drying desulfurized gypsum to obtain dehydrated desulfurized gypsum; performing chemical component analysis on the limestone, the alumina dust collection powder and the dehydrated and desulfurized gypsum to obtain limestone component data, alumina dust collection powder component data and dehydrated and desulfurized gypsum component data; determining the mass ratio of the dehydrated and desulfurized gypsum to the limestone to the alumina dust collection powder according to the obtained data in combination with theoretical composition data of the sulphoaluminate cement; respectively adding limestone, alumina dust collection powder and dehydrated and desulfurized gypsum according to the mass ratio, mixing, and calcining to obtain a sulphoaluminate cement product; the high-value sulphoaluminate cement product can be obtained by calcining industrial solid waste desulfurized gypsum, limestone and alumina dust collection powder, so that the high-value sulphoaluminate cement product is prepared from the desulfurized gypsum.
本申请涉及固体废弃物回收利用技术领域，尤其涉及一种脱硫石膏回收利用的方法；所述方法包括：干燥脱硫石膏，得到脱水脱硫石膏；分别对石灰石、氧化铝收尘粉和脱水脱硫石膏进行化学成分分析，得到石灰石成分数据、氧化铝收尘粉成分数据和脱水脱硫石膏成分数据；根据所得数据，结合硫铝酸盐水泥的理论组成数据，确定脱水脱硫石膏、石灰石和氧化铝收尘粉的质量配比；根据质量配比分别加入石灰石、氧化铝收尘粉和脱水脱硫石膏，并混合，后煅烧，得到硫铝酸盐水泥产品；利用工业固废脱硫石膏、石灰石、氧化铝收尘粉通过煅烧的方式，可以得到高价值的硫铝酸盐水泥产品，从而实现利用脱硫石膏制备高价值的硫铝酸盐水泥产品。
Method for recycling desulfurized gypsum
The invention relates to the technical field of solid waste recycling, in particular to a method for recycling desulfurized gypsum. The method comprises the following steps: drying desulfurized gypsum to obtain dehydrated desulfurized gypsum; performing chemical component analysis on the limestone, the alumina dust collection powder and the dehydrated and desulfurized gypsum to obtain limestone component data, alumina dust collection powder component data and dehydrated and desulfurized gypsum component data; determining the mass ratio of the dehydrated and desulfurized gypsum to the limestone to the alumina dust collection powder according to the obtained data in combination with theoretical composition data of the sulphoaluminate cement; respectively adding limestone, alumina dust collection powder and dehydrated and desulfurized gypsum according to the mass ratio, mixing, and calcining to obtain a sulphoaluminate cement product; the high-value sulphoaluminate cement product can be obtained by calcining industrial solid waste desulfurized gypsum, limestone and alumina dust collection powder, so that the high-value sulphoaluminate cement product is prepared from the desulfurized gypsum.
本申请涉及固体废弃物回收利用技术领域，尤其涉及一种脱硫石膏回收利用的方法；所述方法包括：干燥脱硫石膏，得到脱水脱硫石膏；分别对石灰石、氧化铝收尘粉和脱水脱硫石膏进行化学成分分析，得到石灰石成分数据、氧化铝收尘粉成分数据和脱水脱硫石膏成分数据；根据所得数据，结合硫铝酸盐水泥的理论组成数据，确定脱水脱硫石膏、石灰石和氧化铝收尘粉的质量配比；根据质量配比分别加入石灰石、氧化铝收尘粉和脱水脱硫石膏，并混合，后煅烧，得到硫铝酸盐水泥产品；利用工业固废脱硫石膏、石灰石、氧化铝收尘粉通过煅烧的方式，可以得到高价值的硫铝酸盐水泥产品，从而实现利用脱硫石膏制备高价值的硫铝酸盐水泥产品。
Method for recycling desulfurized gypsum
一种脱硫石膏回收利用的方法
LI BO (author) / ZHANG SHUCHAO (author) / WANG WENGUANG (author) / QU YUANYUAN (author) / SUN GAIHUA (author)
2023-10-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Desulfurized gypsum calcination waste heat recycling device
| European Patent Office | 2024
Method for preparing desulfurized gypsum from dry desulfurized ash
| European Patent Office | 2020