Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-strength unfired ceramsite by utilizing phosphogypsum and coal gangue
The invention discloses a method for preparing high-strength non-sintered ceramsite by utilizing ardealite and coal gangue. The preparation method comprises the following steps: drying, grinding and sieving ardealite cementing material powder and coal gangue, uniformly mixing, and adding distilled water while stirring until viscous mud pies are formed, so as to obtain a mixture containing ball cores; transferring the mixture into balling equipment, adjusting and preparing water quantity for balling, and screening after balling to obtain wet raw material balls; and sequentially aging, drying and dehydrating the wet raw material balls to obtain dry raw material balls, uniformly paving the dry raw material balls, and naturally curing to obtain a formed ceramsite product. The ardealite-based all-solid waste cementing material and the coal gangue are added to synergistically create an alkaline hydration environment, the mineral powder, the silicon-rich material and the coal gangue can be promoted to be subjected to a pozzolanic reaction, gel substances such as hydrated calcium silicate and the like are generated, then a denser structure is formed, increase of the strength of the ceramsite is promoted, and the baking-free ceramic with good performance can be obtained.
本发明公开了一种利用磷石膏和煤矸石制备高强度免烧陶粒的方法。本发明的制备方法包括：将磷石膏胶凝材料粉和煤矸石经烘干、粉磨、过筛后混合均匀，边搅拌边加入蒸馏水，直至形成粘性泥团，得到含有球核的混合料；将混合料转入成球设备中，调整、配制水量进行成球，成球后进行筛分，获得湿生料球；将湿生料球依次进行陈化和干燥脱水，得到干生料球，将干生料球均匀铺放，自然养护，即得到成型的陶粒产品。本发明通过添加磷石膏基全固废胶凝材料、煤矸石协同营造了一个碱性水化环境，可促进矿粉、富硅材料和煤矸石发生火山灰反应，生成水化硅酸钙等凝胶物质，进而形成更为密实的结构，促进陶粒强度的增长，可获得性能良好的免烧陶瓷。
Method for preparing high-strength unfired ceramsite by utilizing phosphogypsum and coal gangue
The invention discloses a method for preparing high-strength non-sintered ceramsite by utilizing ardealite and coal gangue. The preparation method comprises the following steps: drying, grinding and sieving ardealite cementing material powder and coal gangue, uniformly mixing, and adding distilled water while stirring until viscous mud pies are formed, so as to obtain a mixture containing ball cores; transferring the mixture into balling equipment, adjusting and preparing water quantity for balling, and screening after balling to obtain wet raw material balls; and sequentially aging, drying and dehydrating the wet raw material balls to obtain dry raw material balls, uniformly paving the dry raw material balls, and naturally curing to obtain a formed ceramsite product. The ardealite-based all-solid waste cementing material and the coal gangue are added to synergistically create an alkaline hydration environment, the mineral powder, the silicon-rich material and the coal gangue can be promoted to be subjected to a pozzolanic reaction, gel substances such as hydrated calcium silicate and the like are generated, then a denser structure is formed, increase of the strength of the ceramsite is promoted, and the baking-free ceramic with good performance can be obtained.
本发明公开了一种利用磷石膏和煤矸石制备高强度免烧陶粒的方法。本发明的制备方法包括：将磷石膏胶凝材料粉和煤矸石经烘干、粉磨、过筛后混合均匀，边搅拌边加入蒸馏水，直至形成粘性泥团，得到含有球核的混合料；将混合料转入成球设备中，调整、配制水量进行成球，成球后进行筛分，获得湿生料球；将湿生料球依次进行陈化和干燥脱水，得到干生料球，将干生料球均匀铺放，自然养护，即得到成型的陶粒产品。本发明通过添加磷石膏基全固废胶凝材料、煤矸石协同营造了一个碱性水化环境，可促进矿粉、富硅材料和煤矸石发生火山灰反应，生成水化硅酸钙等凝胶物质，进而形成更为密实的结构，促进陶粒强度的增长，可获得性能良好的免烧陶瓷。
Method for preparing high-strength unfired ceramsite by utilizing phosphogypsum and coal gangue
一种利用磷石膏和煤矸石制备高强度免烧陶粒的方法
SUN WENJING (Autor:in) / XIE HONGZHANG (Autor:in) / SUN GAOGE (Autor:in) / XIAO YU (Autor:in) / FAN RIDONG (Autor:in) / TANG QIANTONG (Autor:in) / LI QINGHUA (Autor:in)
16.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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