Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a manufacturing process of phosphorus building gypsum powder. The method comprises the following steps: S1, obtaining raw materials, namely phosphogypsum and limestone powder;s2, putting the phosphogypsum in the raw materials in the step S1 into a crusher to be crushed to obtain phosphogypsum particles, s3, putting the crushed phosphogypsum particles into a grinding machine for grinding, and screening to obtain phosphogypsum powder, s4, mixing the screened phosphogypsum powder in water according to the mass ratio of 1-1.2; uniformly stirring to obtain phosphogypsum slurry; s5, adding a water reducing agent and a retarder into the phosphogypsum slurry and mixing; s6, adding the limestone powder into the phosphogypsum slurry according to a mass ratio of 1-5, and uniformly mixing and stirring to obtain a mixture; S7, conveying the mixture to a dehydration furnace; and S8, conveying the mixture to a calcining furnace for 22-28 minutes. By adding the water reducingagent and the retarder, the moisture in the phosphogypsum slurry can be continuously reduced, meanwhile, the phosphogypsum slurry is prevented from being condensed too fast, and the limestone powder can be used for increasing the adhesive force of materials in the phosphogypsum slurry.
本发明公开了一种磷建筑石膏粉制造工艺，包括以下步骤；S1、原料获取、磷石膏、石灰石粉，S2、将S1原料中的鳞石膏放进粉碎机进行粉碎得到磷石膏颗粒，S3、将粉碎后的磷石膏颗粒放进粉磨机进行粉磨、筛选得到磷石膏粉末，S4、将经过筛选后的磷石膏粉末按质量比例1‑1.2混合在水中，搅拌均匀得到磷石膏浆料，S5、向磷石膏浆料中加入减水剂和缓凝剂混合，S6、向磷石膏浆料中加入石灰石粉按质量比例1‑5混合搅拌均匀得到混合物，S7、将混合物送至脱水炉，S8、将混合物送至煅烧炉22～28分钟，本发明通过加入减水剂和缓凝剂，可以使磷石膏浆料中的水分不断减少，同时避免磷石膏浆料凝结过快，利用石灰石粉可以增加磷石膏浆料中物料的粘合力。
The invention discloses a manufacturing process of phosphorus building gypsum powder. The method comprises the following steps: S1, obtaining raw materials, namely phosphogypsum and limestone powder;s2, putting the phosphogypsum in the raw materials in the step S1 into a crusher to be crushed to obtain phosphogypsum particles, s3, putting the crushed phosphogypsum particles into a grinding machine for grinding, and screening to obtain phosphogypsum powder, s4, mixing the screened phosphogypsum powder in water according to the mass ratio of 1-1.2; uniformly stirring to obtain phosphogypsum slurry; s5, adding a water reducing agent and a retarder into the phosphogypsum slurry and mixing; s6, adding the limestone powder into the phosphogypsum slurry according to a mass ratio of 1-5, and uniformly mixing and stirring to obtain a mixture; S7, conveying the mixture to a dehydration furnace; and S8, conveying the mixture to a calcining furnace for 22-28 minutes. By adding the water reducingagent and the retarder, the moisture in the phosphogypsum slurry can be continuously reduced, meanwhile, the phosphogypsum slurry is prevented from being condensed too fast, and the limestone powder can be used for increasing the adhesive force of materials in the phosphogypsum slurry.
本发明公开了一种磷建筑石膏粉制造工艺，包括以下步骤；S1、原料获取、磷石膏、石灰石粉，S2、将S1原料中的鳞石膏放进粉碎机进行粉碎得到磷石膏颗粒，S3、将粉碎后的磷石膏颗粒放进粉磨机进行粉磨、筛选得到磷石膏粉末，S4、将经过筛选后的磷石膏粉末按质量比例1‑1.2混合在水中，搅拌均匀得到磷石膏浆料，S5、向磷石膏浆料中加入减水剂和缓凝剂混合，S6、向磷石膏浆料中加入石灰石粉按质量比例1‑5混合搅拌均匀得到混合物，S7、将混合物送至脱水炉，S8、将混合物送至煅烧炉22～28分钟，本发明通过加入减水剂和缓凝剂，可以使磷石膏浆料中的水分不断减少，同时避免磷石膏浆料凝结过快，利用石灰石粉可以增加磷石膏浆料中物料的粘合力。
| Europäisches Patentamt | 2024
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