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A platform for research: civil engineering, architecture and urbanism
Method for preparing artificial sand from ardealite
The invention belongs to the technical field of metallurgy and environmental protection, and particularly relates to a method for preparing artificial sand from ardealite. The preparation method comprises the following steps: taking phosphogypsum as a main raw material, taking steel slag and/or ordinary Portland cement and/or superfine slag powder as a binder, taking water glass or anhydrous sodium sulphate as an exciting agent, uniformly stirring and mixing the pretreated phosphogypsum, binder and exciting agent according to a certain proportion, granulating, crushing, screening and shaping. The strength of the prepared artificial sand is higher than 4.86 MPa, the process is simple, investment is low, the problem of utilization of a large amount of metallurgical solid waste such as phosphogypsum is solved, high-added-value utilization of the metallurgical solid waste is achieved, environmental pollution is reduced, and good economic, ecological, environment-friendly and social benefits are achieved.
本发明属于冶金与环保技术领域，具体涉及一种利用磷石膏制备人工砂的方法。该制备方法以磷石膏作为主要原料，钢渣和/或普通硅酸盐水泥和/或矿渣微粉作为粘结剂，配以水玻璃或者元明粉作为激发剂，其将预处理的磷石膏、粘结剂和激发剂按照一定比例搅拌混匀、造粒、破碎、筛分、整形。本发明制备的人工砂强度高于4.86MPa，而且工艺简单，投资少，不仅解决了磷石膏等大宗冶金固废的利用难题，使其得到高附加值利用，减少环境污染，具有较好的经济、生态环保、社会效益。
Method for preparing artificial sand from ardealite
The invention belongs to the technical field of metallurgy and environmental protection, and particularly relates to a method for preparing artificial sand from ardealite. The preparation method comprises the following steps: taking phosphogypsum as a main raw material, taking steel slag and/or ordinary Portland cement and/or superfine slag powder as a binder, taking water glass or anhydrous sodium sulphate as an exciting agent, uniformly stirring and mixing the pretreated phosphogypsum, binder and exciting agent according to a certain proportion, granulating, crushing, screening and shaping. The strength of the prepared artificial sand is higher than 4.86 MPa, the process is simple, investment is low, the problem of utilization of a large amount of metallurgical solid waste such as phosphogypsum is solved, high-added-value utilization of the metallurgical solid waste is achieved, environmental pollution is reduced, and good economic, ecological, environment-friendly and social benefits are achieved.
本发明属于冶金与环保技术领域，具体涉及一种利用磷石膏制备人工砂的方法。该制备方法以磷石膏作为主要原料，钢渣和/或普通硅酸盐水泥和/或矿渣微粉作为粘结剂，配以水玻璃或者元明粉作为激发剂，其将预处理的磷石膏、粘结剂和激发剂按照一定比例搅拌混匀、造粒、破碎、筛分、整形。本发明制备的人工砂强度高于4.86MPa，而且工艺简单，投资少，不仅解决了磷石膏等大宗冶金固废的利用难题，使其得到高附加值利用，减少环境污染，具有较好的经济、生态环保、社会效益。
Method for preparing artificial sand from ardealite
一种利用磷石膏制备人工砂的方法
LI CANHUA (author) / DU GANG (author) / WU SHENGHUA (author) / HUANG ZHENYI (author) / LI MINGHUI (author) / LI ZIMU (author) / JI HONGFENG (author) / HE ZONGGUO (author) / MA WENQING (author)
2022-11-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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