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Microporous sound absorption ceramic prepared from river and lake bottom mud and coal-based solid waste
The invention discloses a microporous sound-absorbing ceramic prepared from river and lake bottom mud and coal-based solid waste as raw materials, and belongs to the field of environment-friendly materials. The high-sound-absorption microporous ceramic is prepared from the following raw materials in percentage by mass: 30-50% of lake sediment; 25%-40% of coal gangue; 15%-20% of diatomite; 40%-60% of water; 1%-3% of a dispersant; 1%-3% of a gelling agent; 3%-5% of a foaming agent; the preparation method comprises the following steps: drying and grinding the lake bottom mud to prepare uniform bottom mud powder of more than 100 meshes; mixing the bottom mud powder, the coal gangue powder and the diatomite powder to prepare mixed powder; adding water, a dispersing agent and a gelling agent into the mixed powder, and performing ball milling in a ball mill to obtain uniform mixed slurry; adding a foaming agent, stirring and foaming; performing injection molding, vibrating, demolding and the like to obtain a green body, and finally sintering and cooling to obtain a finished product. The sound absorption ceramic is a through hole material, and is high in porosity, small in aperture and good in medium-high frequency sound absorption performance.
本发明公开了一种利用河湖底泥与煤基固废为原料的微孔吸声陶瓷，属于环保材料领域；该高吸声微孔陶瓷的原料组成及质量百分比是：湖泊底泥30％～50％；煤矸石25％～40％；硅藻土15％～20％；水40％～60％；分散剂1%‑3%；胶凝剂1%‑3%；发泡剂3%‑5%；制备方法为：将湖泊底泥干燥、研磨，制成100目以上的均匀的底泥粉末；将底泥粉末、煤矸石粉、硅藻土粉混合制成混合粉体；向混合粉体中加入水、分散剂、胶凝剂置入球磨机球磨后得到均匀的混合浆料；再将发泡剂加入搅拌发泡；然后进行注模、振捣和脱模等步骤得到生胚，最后进行烧结、冷却得到成品。本发明的吸声陶瓷为通孔材料，孔隙率高，孔径微小，中高频吸声性能好。
Microporous sound absorption ceramic prepared from river and lake bottom mud and coal-based solid waste
The invention discloses a microporous sound-absorbing ceramic prepared from river and lake bottom mud and coal-based solid waste as raw materials, and belongs to the field of environment-friendly materials. The high-sound-absorption microporous ceramic is prepared from the following raw materials in percentage by mass: 30-50% of lake sediment; 25%-40% of coal gangue; 15%-20% of diatomite; 40%-60% of water; 1%-3% of a dispersant; 1%-3% of a gelling agent; 3%-5% of a foaming agent; the preparation method comprises the following steps: drying and grinding the lake bottom mud to prepare uniform bottom mud powder of more than 100 meshes; mixing the bottom mud powder, the coal gangue powder and the diatomite powder to prepare mixed powder; adding water, a dispersing agent and a gelling agent into the mixed powder, and performing ball milling in a ball mill to obtain uniform mixed slurry; adding a foaming agent, stirring and foaming; performing injection molding, vibrating, demolding and the like to obtain a green body, and finally sintering and cooling to obtain a finished product. The sound absorption ceramic is a through hole material, and is high in porosity, small in aperture and good in medium-high frequency sound absorption performance.
本发明公开了一种利用河湖底泥与煤基固废为原料的微孔吸声陶瓷，属于环保材料领域；该高吸声微孔陶瓷的原料组成及质量百分比是：湖泊底泥30％～50％；煤矸石25％～40％；硅藻土15％～20％；水40％～60％；分散剂1%‑3%；胶凝剂1%‑3%；发泡剂3%‑5%；制备方法为：将湖泊底泥干燥、研磨，制成100目以上的均匀的底泥粉末；将底泥粉末、煤矸石粉、硅藻土粉混合制成混合粉体；向混合粉体中加入水、分散剂、胶凝剂置入球磨机球磨后得到均匀的混合浆料；再将发泡剂加入搅拌发泡；然后进行注模、振捣和脱模等步骤得到生胚，最后进行烧结、冷却得到成品。本发明的吸声陶瓷为通孔材料，孔隙率高，孔径微小，中高频吸声性能好。
Microporous sound absorption ceramic prepared from river and lake bottom mud and coal-based solid waste
一种利用河湖底泥与煤基固废制备的微孔吸声陶瓷
MIN HEQUN (author) / RONG NINGNING (author) / YUE WENXUAN (author) / WANG ZIYANG (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Heavy metal polluted bottom mud efficient curing material prepared based on coal-based solid waste
| European Patent Office | 2021
| European Patent Office | 2024