Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of anhydrite ultrafine powder
The invention relates to the technical field of anhydrite ultrafine powder preparation, and discloses an anhydrite ultrafine powder preparation method, which comprises: 1, primary crushing; 2, mixing and crystallizing; 3, wet steaming; 4, secondary grinding is conducted; (5) calcining; sixthly, fine grinding is conducted; and 7, collecting. According to the preparation method of the anhydrite ultrafine powder, gypsum is dissolved and crystallized in a crystal grain grower to obtain coarse alpha-semi-hydrated gypsum crystal grains, the obtained gypsum is high in strength, the gypsum crystal grain grower is a low-pressure container, the internal temperature of the container is 120 DEG C, and a stirrer is installed, so that the temperature of gypsum slurry is uniform; gypsum crystals are easy to grow into needle shapes under a free growth condition, so that the density and the strength of the gypsum are reduced, fine gypsum powder is finally obtained after subsequent secondary grinding, calcination and fine grinding, the fine degree of the gypsum powder can be guaranteed to the maximum extent, and the firmness and the stability of gypsum powder products are improved.
本发明涉及硬石膏超细粉体制备技术领域，且公开了一种硬石膏超细粉体的制备方法，包括以下工作步骤：第一步：一级粉碎；第二步：混料结晶；第三步：湿蒸；第四步：二级磨粉；第五步：煅烧；第六步：精研磨；第七步：收集。该一种硬石膏超细粉体的制备方法，本发明石膏在晶粒生长器中溶解、并结晶得到形貌粗大的α‑半水石膏晶粒，得到的石膏强度较高，石膏晶粒生长器，为一低压容器，容器内部温度为120℃，安装有搅拌器，使石膏浆温度均匀，石膏晶体在自由生长条件下，容易长成针状，使石膏的密度下降，强度降低，在后续经过二级磨粉、煅烧和精研磨后最终获得石膏细粉体，本发明能够最大程度保证石膏粉细腻程度，提高石膏粉制品的牢固性及稳定性。
Preparation method of anhydrite ultrafine powder
The invention relates to the technical field of anhydrite ultrafine powder preparation, and discloses an anhydrite ultrafine powder preparation method, which comprises: 1, primary crushing; 2, mixing and crystallizing; 3, wet steaming; 4, secondary grinding is conducted; (5) calcining; sixthly, fine grinding is conducted; and 7, collecting. According to the preparation method of the anhydrite ultrafine powder, gypsum is dissolved and crystallized in a crystal grain grower to obtain coarse alpha-semi-hydrated gypsum crystal grains, the obtained gypsum is high in strength, the gypsum crystal grain grower is a low-pressure container, the internal temperature of the container is 120 DEG C, and a stirrer is installed, so that the temperature of gypsum slurry is uniform; gypsum crystals are easy to grow into needle shapes under a free growth condition, so that the density and the strength of the gypsum are reduced, fine gypsum powder is finally obtained after subsequent secondary grinding, calcination and fine grinding, the fine degree of the gypsum powder can be guaranteed to the maximum extent, and the firmness and the stability of gypsum powder products are improved.
本发明涉及硬石膏超细粉体制备技术领域，且公开了一种硬石膏超细粉体的制备方法，包括以下工作步骤：第一步：一级粉碎；第二步：混料结晶；第三步：湿蒸；第四步：二级磨粉；第五步：煅烧；第六步：精研磨；第七步：收集。该一种硬石膏超细粉体的制备方法，本发明石膏在晶粒生长器中溶解、并结晶得到形貌粗大的α‑半水石膏晶粒，得到的石膏强度较高，石膏晶粒生长器，为一低压容器，容器内部温度为120℃，安装有搅拌器，使石膏浆温度均匀，石膏晶体在自由生长条件下，容易长成针状，使石膏的密度下降，强度降低，在后续经过二级磨粉、煅烧和精研磨后最终获得石膏细粉体，本发明能够最大程度保证石膏粉细腻程度，提高石膏粉制品的牢固性及稳定性。
Preparation method of anhydrite ultrafine powder
一种硬石膏超细粉体的制备方法
PAN SIHAI (Autor:in) / LI XIANGFEI (Autor:in) / ZHOU ZHANLIN (Autor:in) / QIAN YEJI (Autor:in) / LIU SHENGLE (Autor:in) / MAO HONGKAI (Autor:in) / YAN SHENGXIA (Autor:in) / XU YUEMING (Autor:in)
11.11.2022
Patent
Elektronische Ressource
Chinesisch
Preparing method for modified fluorgypsum powder for plastering anhydrite
| Europäisches Patentamt | 2015
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