Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Process for producing anhydrous gypsum from calcium sulfite hemihydrate
The invention relates to a process for producing anhydrous gypsum from calcium sulfite hemihydrate, and belongs to the technical field of gypsum production. The process for producing anhydrous gypsum from calcium sulfite hemihydrate comprises the following steps: (1) calcining the calcium sulfite hemihydrate to dehydrate and oxidize the calcium sulfite hemihydrate to form calcium sulfate and form calcium sulfate II crystals; (2) modifying the generated calcium sulfate II by using a ball mill; and (3) treating the calcium sulfate II by using an exciting agent to form an anhydrous type II gypsum building material product. According to the invention, the calcium sulfite hemihydrate can be produced into anhydrous type II gypsum-based self-leveling mortar, anhydrous type II gypsum-based plastering mortar and other products, and can be widely used in building material and building industries. According to the process, the desulfurized fly ash is used as a raw material, so that the problem of desulfurized fly ash stacking is solved, and considerable economic value can be created.
本发明涉及一种半水亚硫酸钙生产无水石膏工艺，属于石膏生产技术领域。一种半水亚硫酸钙生产无水石膏工艺，包括以下步骤，(1)、对半水亚硫酸钙进行煅烧，使半水亚硫酸钙脱水、氧化形成硫酸钙并形成硫酸钙Ⅱ晶体；(2)、将生成的硫酸钙Ⅱ使用球磨机处理进行改性；(3)、使用激发剂处理硫酸钙Ⅱ形成无水二型石膏建材产品。本发明能够将半水亚硫酸钙生产成无水二型石膏基自流平砂浆和无水二型石膏基抹灰砂浆等产品，可以广泛的用于建材、建筑行业。该工艺使用脱硫灰作为原料，不仅解决了脱硫灰堆放问题，还可以创造可观的经济价值。
Process for producing anhydrous gypsum from calcium sulfite hemihydrate
The invention relates to a process for producing anhydrous gypsum from calcium sulfite hemihydrate, and belongs to the technical field of gypsum production. The process for producing anhydrous gypsum from calcium sulfite hemihydrate comprises the following steps: (1) calcining the calcium sulfite hemihydrate to dehydrate and oxidize the calcium sulfite hemihydrate to form calcium sulfate and form calcium sulfate II crystals; (2) modifying the generated calcium sulfate II by using a ball mill; and (3) treating the calcium sulfate II by using an exciting agent to form an anhydrous type II gypsum building material product. According to the invention, the calcium sulfite hemihydrate can be produced into anhydrous type II gypsum-based self-leveling mortar, anhydrous type II gypsum-based plastering mortar and other products, and can be widely used in building material and building industries. According to the process, the desulfurized fly ash is used as a raw material, so that the problem of desulfurized fly ash stacking is solved, and considerable economic value can be created.
本发明涉及一种半水亚硫酸钙生产无水石膏工艺，属于石膏生产技术领域。一种半水亚硫酸钙生产无水石膏工艺，包括以下步骤，(1)、对半水亚硫酸钙进行煅烧，使半水亚硫酸钙脱水、氧化形成硫酸钙并形成硫酸钙Ⅱ晶体；(2)、将生成的硫酸钙Ⅱ使用球磨机处理进行改性；(3)、使用激发剂处理硫酸钙Ⅱ形成无水二型石膏建材产品。本发明能够将半水亚硫酸钙生产成无水二型石膏基自流平砂浆和无水二型石膏基抹灰砂浆等产品，可以广泛的用于建材、建筑行业。该工艺使用脱硫灰作为原料，不仅解决了脱硫灰堆放问题，还可以创造可观的经济价值。
Process for producing anhydrous gypsum from calcium sulfite hemihydrate
一种半水亚硫酸钙生产无水石膏工艺
LYU YINGQIANG (Autor:in) / ZHAO BAOSHAN (Autor:in)
04.06.2021
Patent
Elektronische Ressource
Chinesisch
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