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Ceramsite sand prepared from waste ceramsite sand and used for 3D printing and preparation method of ceramsite sand
The invention discloses ceramsite sand prepared from waste ceramsite sand and used for 3D printing and a preparation method of the ceramsite sand. Waste ceramsite, aluminum-containing ore and silicon-containing waste are used as raw materials, sodium silicate in a solution can be used as a binder, adhesion among the materials is promoted through spraying to form regular spheres, and meanwhile, sodium hydroxide and sodium silicate are added. An alkaline environment is provided for the mixed material, glass bodies in the material are broken, silicon oxide, aluminum oxide and other components in the waste ceramsite sand are promoted to react, and the product strength is improved. The ceramsite sand with a perfect crystal structure is formed by pre-sintering at the temperature of 500 DEG C and then sintering at the high temperature of 1200 DEG C, and all the effective components react rapidly and crystallize, so that the mechanical property and the fire resistance of the product are improved. Recycling of various industrial and mining waste materials is achieved, the preparation process is simple, energy is saved, the environment is protected, and the cost of the ceramsite sand is reduced. The prepared ceramsite sand is uniform in structure, high in compactness, complete in form, excellent in mechanical property and high in high temperature resistance and corrosion resistance.
本发明公开了一种利用废弃陶粒砂制备的3D打印用陶粒砂及其制备方法，以废陶粒、含铝矿石、含硅废料作为原料，溶液中的硅酸钠可作为粘结剂，通过喷雾促进材料之间黏连形成规则的球形，同时，加入氢氧化钠和硅酸钠，为混合材料提供碱性环境，打破物料中的的玻璃体，促使废陶粒砂中的氧化硅，氧化铝等成分发生反应，提高产品强度。首先在500℃下预烧，然后在1200℃高温下烧结，各有效成分之间迅速反应结晶，形成晶体结构完善的陶粒砂，增加产品的力学性能和耐火性能。本发明实现多种工矿废料的再生利用，制备工艺简单，节能环保，降低了陶粒砂的成本。制备所得的陶粒砂结构均匀、密实度高、形态完整、力学性能优异、耐高温及耐腐蚀性强。
Ceramsite sand prepared from waste ceramsite sand and used for 3D printing and preparation method of ceramsite sand
The invention discloses ceramsite sand prepared from waste ceramsite sand and used for 3D printing and a preparation method of the ceramsite sand. Waste ceramsite, aluminum-containing ore and silicon-containing waste are used as raw materials, sodium silicate in a solution can be used as a binder, adhesion among the materials is promoted through spraying to form regular spheres, and meanwhile, sodium hydroxide and sodium silicate are added. An alkaline environment is provided for the mixed material, glass bodies in the material are broken, silicon oxide, aluminum oxide and other components in the waste ceramsite sand are promoted to react, and the product strength is improved. The ceramsite sand with a perfect crystal structure is formed by pre-sintering at the temperature of 500 DEG C and then sintering at the high temperature of 1200 DEG C, and all the effective components react rapidly and crystallize, so that the mechanical property and the fire resistance of the product are improved. Recycling of various industrial and mining waste materials is achieved, the preparation process is simple, energy is saved, the environment is protected, and the cost of the ceramsite sand is reduced. The prepared ceramsite sand is uniform in structure, high in compactness, complete in form, excellent in mechanical property and high in high temperature resistance and corrosion resistance.
本发明公开了一种利用废弃陶粒砂制备的3D打印用陶粒砂及其制备方法，以废陶粒、含铝矿石、含硅废料作为原料，溶液中的硅酸钠可作为粘结剂，通过喷雾促进材料之间黏连形成规则的球形，同时，加入氢氧化钠和硅酸钠，为混合材料提供碱性环境，打破物料中的的玻璃体，促使废陶粒砂中的氧化硅，氧化铝等成分发生反应，提高产品强度。首先在500℃下预烧，然后在1200℃高温下烧结，各有效成分之间迅速反应结晶，形成晶体结构完善的陶粒砂，增加产品的力学性能和耐火性能。本发明实现多种工矿废料的再生利用，制备工艺简单，节能环保，降低了陶粒砂的成本。制备所得的陶粒砂结构均匀、密实度高、形态完整、力学性能优异、耐高温及耐腐蚀性强。
Ceramsite sand prepared from waste ceramsite sand and used for 3D printing and preparation method of ceramsite sand
利用废弃陶粒砂制备的3D打印用陶粒砂及其制备方法
LI MAOHUI (author) / YANG SHAOLIN (author) / LU YOUJUN (author) / HAN FENGLAN (author) / XING ZHIBING (author)
2021-06-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
| European Patent Office | 2022
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