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Method for preparing ultra-light ceramsite from coal gangue and solid waste
The invention is applicable to the technical field of ultra-light ceramsite preparation, and provides a method for preparing ultra-light ceramsite by using coal gangue and solid waste, which comprises the following steps: step 1, concentrating and filter-pressing coal gangue ore pulp, and grinding to preset fineness; 2, the iron-containing solid waste is crushed, dried and ground to the preset fineness; step 3, preparing an additive, uniformly mixing and grinding to preset fineness; 4, uniformly mixing the coal gangue powder, the iron-containing solid waste powder and the additive powder according to a preset proportion; (5) extruding and granulating the mixed material mixed in the step (4) to obtain a raw material blank; 6, the raw blank is dried; 7, roasting the raw blank in the step 6 to obtain pellets; and 8, cooling the pellets in the step 7 to room temperature. According to the invention, the coal gangue, the additive and the iron-containing solid waste are subjected to chemical reaction, so that the pore structure of the ceramsite is improved, the ceramsite has lower water absorption rate, and the compressive strength of the ceramsite is enhanced.
本发明适用于特轻陶粒制备技术领域，提供了一种用煤矸石协同固废制备特轻陶粒的方法，包括以下步骤：步骤一：浓缩压滤煤矸石矿浆，并粉磨到预定细度；步骤二：含铁固废破碎、烘干、粉磨到预定细度；步骤三：配置外加剂，混匀并粉磨到预定细度；步骤四：将煤矸石粉、含铁固废粉、外加剂粉按预定比例混合均匀；步骤五：将步骤四中混合后的混合物料进行挤压造粒得到生料坯；步骤六：烘干生料坯；步骤七：将步骤六中的生料坯进行焙烧，得到料球；步骤八：将步骤七中的料球冷却至室温。本发明利用煤矸石和外加剂与含铁固废发生化学反应，改善陶粒的孔结构，使得陶粒具有较低的吸水率并增强陶粒的抗压强度。
Method for preparing ultra-light ceramsite from coal gangue and solid waste
The invention is applicable to the technical field of ultra-light ceramsite preparation, and provides a method for preparing ultra-light ceramsite by using coal gangue and solid waste, which comprises the following steps: step 1, concentrating and filter-pressing coal gangue ore pulp, and grinding to preset fineness; 2, the iron-containing solid waste is crushed, dried and ground to the preset fineness; step 3, preparing an additive, uniformly mixing and grinding to preset fineness; 4, uniformly mixing the coal gangue powder, the iron-containing solid waste powder and the additive powder according to a preset proportion; (5) extruding and granulating the mixed material mixed in the step (4) to obtain a raw material blank; 6, the raw blank is dried; 7, roasting the raw blank in the step 6 to obtain pellets; and 8, cooling the pellets in the step 7 to room temperature. According to the invention, the coal gangue, the additive and the iron-containing solid waste are subjected to chemical reaction, so that the pore structure of the ceramsite is improved, the ceramsite has lower water absorption rate, and the compressive strength of the ceramsite is enhanced.
本发明适用于特轻陶粒制备技术领域，提供了一种用煤矸石协同固废制备特轻陶粒的方法，包括以下步骤：步骤一：浓缩压滤煤矸石矿浆，并粉磨到预定细度；步骤二：含铁固废破碎、烘干、粉磨到预定细度；步骤三：配置外加剂，混匀并粉磨到预定细度；步骤四：将煤矸石粉、含铁固废粉、外加剂粉按预定比例混合均匀；步骤五：将步骤四中混合后的混合物料进行挤压造粒得到生料坯；步骤六：烘干生料坯；步骤七：将步骤六中的生料坯进行焙烧，得到料球；步骤八：将步骤七中的料球冷却至室温。本发明利用煤矸石和外加剂与含铁固废发生化学反应，改善陶粒的孔结构，使得陶粒具有较低的吸水率并增强陶粒的抗压强度。
Method for preparing ultra-light ceramsite from coal gangue and solid waste
一种用煤矸石协同固废制备特轻陶粒的方法
WEN PENG (author) / LIN LIPING (author) / MA YANLI (author) / MA LIANTAO (author) / ZHAO XIANGFENG (author) / CAO XUELIANG (author) / DU YUANYUAN (author)
2023-12-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Method for preparing ceramsite from coal gangue and steel slag, and ceramsite
| European Patent Office | 2021
| European Patent Office | 2021