Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for enhancing calcined desulfurized gypsum
The invention relates to a method for enhancing calcined flue gas desulfurization gypsum, which specifically comprises the following steps: (1) adding anhydrous calcium chloride, a defoaming agent and redispersible latex powder into water, stirring, adding calcined flue gas desulfurization gypsum, slag powder, steel slag powder and calcium aluminate cement, and uniformly mixing and stirring; then, adding sodium methyl silicate, and uniformly mixing and stirring to obtain mixed slurry; and (2) pouring and molding the mixed slurry obtained in the step (1), and curing to obtain the enhanced desulfurized gypsum product. Calcium chloride, sodium methyl silicate, mineral slag, steel slag and calcium aluminate cement are utilized to reinforce the calcined desulfurized gypsum, so that the mechanical strength and water resistance of the gypsum material can be remarkably improved; the hydration reaction product can solidify Cl <-> and Na < + > introduced after calcium chloride and sodium methyl silicate are added, the problems of frosting and yellowing of gypsum products caused by Cl <-> and Na < + > can be effectively inhibited, and the product quality is improved.
本发明涉及一种煅烧脱硫石膏的增强方法，具体为：（1）将无水氯化钙、消泡剂和可再分散乳胶粉加入到水中搅拌，再加入煅烧脱硫石膏、矿渣粉、钢渣粉、铝酸钙水泥混合搅拌均匀；然后，加入甲基硅酸钠，混合均匀搅拌得到混合浆料；（2）将步骤（1）得到的混合浆料浇筑成型，经养护后即可得到增强型脱硫石膏制品。本发明利用氯化钙、甲基硅酸钠、矿渣、钢渣和铝酸钙水泥对煅烧脱硫石膏进行增强，能够显著提高石膏材料的力学强度和耐水性；水化反应产物能够固化添加氯化钙、甲基硅酸钠后引入的Cl‑和Na+，能够有效抑制因Cl‑和Na+导致的石膏制品返霜和泛黄问题，提高产品质量。
Method for enhancing calcined desulfurized gypsum
The invention relates to a method for enhancing calcined flue gas desulfurization gypsum, which specifically comprises the following steps: (1) adding anhydrous calcium chloride, a defoaming agent and redispersible latex powder into water, stirring, adding calcined flue gas desulfurization gypsum, slag powder, steel slag powder and calcium aluminate cement, and uniformly mixing and stirring; then, adding sodium methyl silicate, and uniformly mixing and stirring to obtain mixed slurry; and (2) pouring and molding the mixed slurry obtained in the step (1), and curing to obtain the enhanced desulfurized gypsum product. Calcium chloride, sodium methyl silicate, mineral slag, steel slag and calcium aluminate cement are utilized to reinforce the calcined desulfurized gypsum, so that the mechanical strength and water resistance of the gypsum material can be remarkably improved; the hydration reaction product can solidify Cl <-> and Na < + > introduced after calcium chloride and sodium methyl silicate are added, the problems of frosting and yellowing of gypsum products caused by Cl <-> and Na < + > can be effectively inhibited, and the product quality is improved.
本发明涉及一种煅烧脱硫石膏的增强方法，具体为：（1）将无水氯化钙、消泡剂和可再分散乳胶粉加入到水中搅拌，再加入煅烧脱硫石膏、矿渣粉、钢渣粉、铝酸钙水泥混合搅拌均匀；然后，加入甲基硅酸钠，混合均匀搅拌得到混合浆料；（2）将步骤（1）得到的混合浆料浇筑成型，经养护后即可得到增强型脱硫石膏制品。本发明利用氯化钙、甲基硅酸钠、矿渣、钢渣和铝酸钙水泥对煅烧脱硫石膏进行增强，能够显著提高石膏材料的力学强度和耐水性；水化反应产物能够固化添加氯化钙、甲基硅酸钠后引入的Cl‑和Na+，能够有效抑制因Cl‑和Na+导致的石膏制品返霜和泛黄问题，提高产品质量。
Method for enhancing calcined desulfurized gypsum
一种煅烧脱硫石膏的增强方法
YUAN CHAOYANG (Autor:in) / ZHAO FENGQING (Autor:in) / LI HANXIAO (Autor:in) / ZHANG ZHIGUO (Autor:in) / ZHANG XIAOLIN (Autor:in) / ZHAO YAN (Autor:in) / SUN ZIYI (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for preparing desulfurized gypsum from dry desulfurized ash
| Europäisches Patentamt | 2020