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Method for Preparing Steel Slag-Slag-Gypsum Composite Cementitious Material by Mixed Grinding
The invention relates to a method for preparing a steel slag-slag-gypsum composite cementitious material by mixed grinding, which comprises the following steps: mixing steel slag particles, slag and gypsum, and grinding these raw materials with a grinding device to obtain fine particle II, coarse particle II and coarse particle III. After the air separation with hot-blast air, the fine particle II enters the dust collector, and the coarse particle II falls back to the grinding disc of the grinding device and are ground continuously, and the coarse particle III continues to be ground by the grinding device after iron removal by a de-ironing separator, thus forming a cycle until all the raw materials enter the dust collector to complete the preparation of cementitious materials. The materials prepared by the mixed grinding method has the advantages of good material gradation, high activity and high strength; further, no waste, high efficiency, low energy consumption and no pollution in the whole process is realized through the pretreatment of steel slag particles and the recycling and reuse of hot and humid off-gas. 4-) 22a 0c 00 ca ~0 a 4-) --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- --
Method for Preparing Steel Slag-Slag-Gypsum Composite Cementitious Material by Mixed Grinding
The invention relates to a method for preparing a steel slag-slag-gypsum composite cementitious material by mixed grinding, which comprises the following steps: mixing steel slag particles, slag and gypsum, and grinding these raw materials with a grinding device to obtain fine particle II, coarse particle II and coarse particle III. After the air separation with hot-blast air, the fine particle II enters the dust collector, and the coarse particle II falls back to the grinding disc of the grinding device and are ground continuously, and the coarse particle III continues to be ground by the grinding device after iron removal by a de-ironing separator, thus forming a cycle until all the raw materials enter the dust collector to complete the preparation of cementitious materials. The materials prepared by the mixed grinding method has the advantages of good material gradation, high activity and high strength; further, no waste, high efficiency, low energy consumption and no pollution in the whole process is realized through the pretreatment of steel slag particles and the recycling and reuse of hot and humid off-gas. 4-) 22a 0c 00 ca ~0 a 4-) --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- --
Method for Preparing Steel Slag-Slag-Gypsum Composite Cementitious Material by Mixed Grinding
WEN GUOPING (author) / BA HAOJING (author) / YANG DUIHENG (author) / NI WEN (author) / ZHAO ZHILI (author) / YANG ZHIJIANG (author)
2021-01-14
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2020
| European Patent Office | 2020
Self-cementitious property of steel slag powder blended with gypsum
| Elsevier | 2016
Self-cementitious property of steel slag powder blended with gypsum
| British Library Online Contents | 2016
Self-cementitious property of steel slag powder blended with gypsum
| British Library Online Contents | 2016