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A platform for research: civil engineering, architecture and urbanism
Method for calcining ardealite combination
The invention relates to a method for calcining ardealite in a segmented combined manner, which comprises the following steps: carrying out wet grinding pretreatment on fresh ardealite raw slag after clear water size mixing, and carrying out flotation impurity removal on wet grinding slurry; ardealite obtained through flotation is filtered, washed with water and filtered again, and purified ardealite powder is obtained; feeding the water-containing purified ardealite powder to a tubular calcining kiln, and sequentially preheating, drying and calcining to obtain semi-hydrated gypsum powder; grinding the semi-hydrated gypsum powder and then carrying out cyclone classification to obtain fine-grained powder and coarse-grained powder, or directly cooling and grinding to obtain high-quality beta gypsum powder; feeding the fine-fraction powder to a two-section tubular calcining kiln, continuing high-temperature calcining to obtain II-type anhydrous gypsum, and performing ultrafine grinding to obtain a filler; according to the method, the production organization is flexible and diverse, three different products including the high-quality beta gypsum powder, the beta gypsum powder and the type II anhydrous gypsum filler can be obtained, and the product quality is excellent.
一种磷石膏分段组合煅烧的方法，对新鲜磷石膏原渣清水调浆后进行湿磨预处理，对湿磨料浆进行浮选除杂；对浮选所得磷石膏进行过滤、水洗再过滤处理，得净化磷石膏粉料；将含水净化磷石膏粉料送至管式煅烧窑，依次进行预热、干燥、煅烧，得半水石膏粉料；对半水石膏粉料粉磨后进行旋风分级，得细粒级粉料和粗粒级粉料，或直接冷却粉磨制得高品质β石膏粉；细粒级粉料送至二段管式煅烧窑继续高温煅烧得Ⅱ型无水石膏，经超细粉磨后得到填料；粗粒级粉料经再次粉磨后制得β石膏粉产品，本发明方法生产组织灵活多样，可获得高品质β石膏粉、β石膏粉和Ⅱ型无水石膏填料三种不同产品，产品质量优异。
Method for calcining ardealite combination
The invention relates to a method for calcining ardealite in a segmented combined manner, which comprises the following steps: carrying out wet grinding pretreatment on fresh ardealite raw slag after clear water size mixing, and carrying out flotation impurity removal on wet grinding slurry; ardealite obtained through flotation is filtered, washed with water and filtered again, and purified ardealite powder is obtained; feeding the water-containing purified ardealite powder to a tubular calcining kiln, and sequentially preheating, drying and calcining to obtain semi-hydrated gypsum powder; grinding the semi-hydrated gypsum powder and then carrying out cyclone classification to obtain fine-grained powder and coarse-grained powder, or directly cooling and grinding to obtain high-quality beta gypsum powder; feeding the fine-fraction powder to a two-section tubular calcining kiln, continuing high-temperature calcining to obtain II-type anhydrous gypsum, and performing ultrafine grinding to obtain a filler; according to the method, the production organization is flexible and diverse, three different products including the high-quality beta gypsum powder, the beta gypsum powder and the type II anhydrous gypsum filler can be obtained, and the product quality is excellent.
一种磷石膏分段组合煅烧的方法，对新鲜磷石膏原渣清水调浆后进行湿磨预处理，对湿磨料浆进行浮选除杂；对浮选所得磷石膏进行过滤、水洗再过滤处理，得净化磷石膏粉料；将含水净化磷石膏粉料送至管式煅烧窑，依次进行预热、干燥、煅烧，得半水石膏粉料；对半水石膏粉料粉磨后进行旋风分级，得细粒级粉料和粗粒级粉料，或直接冷却粉磨制得高品质β石膏粉；细粒级粉料送至二段管式煅烧窑继续高温煅烧得Ⅱ型无水石膏，经超细粉磨后得到填料；粗粒级粉料经再次粉磨后制得β石膏粉产品，本发明方法生产组织灵活多样，可获得高品质β石膏粉、β石膏粉和Ⅱ型无水石膏填料三种不同产品，产品质量优异。
Method for calcining ardealite combination
一种磷石膏组合煅烧的方法
SUN HUALIN (author) / ZHENG GUANGMING (author) / LI FANG (author) / HUANG KUI (author) / DENG GUANGZHENG (author) / WANG FENGLING (author) / ZHU HE (author) / LIN SHUN (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
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