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Low-thermal-conductivity refractory brick and preparation method thereof
The invention discloses a low-thermal-conductivity refractory brick and a preparation method thereof, and relates to the technical field of refractory brick preparation. The low-thermal-conductivity refractory brick is prepared from the following raw materials in parts by weight: 40-60 parts of mullite, 12-18 parts of white clay, 20-30 parts of bauxite clinker, 30-40 parts of mineral raw materials, 10-15 parts of titanium boride, 15-20 parts of fly ash, 20-30 parts of spherical closed-cell perlite, 8-12 parts of combustible substances, 5-7 parts of a green body reinforcing agent, 1-3 parts of a water reducing agent and the balance of water. According to the design, the white clay is added in the production process, the process similar to a ceramic forming process in the sintering process is facilitated, the normal-temperature compression strength of the refractory brick is high, meanwhile, the fly ash and the spherical closed-cell perlite are added, a large number of irregular air holes which are uniformly distributed can be formed in the preparation process of the refractory brick, and the low heat-conducting property of the refractory brick is guaranteed; the low-thermal-conductivity refractory brick prepared by the invention has the advantages of light weight, small volume density, low thermal conductivity, high temperature resistance, difficult deformation of the brick body and long service life.
本发明公开了一种低导热耐火砖及其制备方法，涉及耐火砖制备技术领域，该低导热耐火砖的原料按重量份分为：莫来石40‑60份、白毛土12‑18份、铝矾土熟料20‑30份、矿物原料30‑40份、硼化钛10‑15份、粉煤灰15‑20份、球形闭孔珍珠岩20‑30份、可燃尽物质8‑12份、生坯增强剂5‑7份、减水剂1‑3份和余量的水；本设计通过在生产工艺中加入白毛土，便于在烧结过程中类似陶瓷形成过程，使耐火砖的常温耐压强度高，同时加入粉煤灰和球形闭孔珍珠岩，可以使耐火砖制备过程中形成大量分布均匀的不规则气孔，保障了耐火砖的低导热性能，降低了耐火砖的体积密度，本发明制备的低导热耐火砖，不仅重量轻、体密小，热传导率低，而且耐高温，砖体不易变形，使用寿命长。
Low-thermal-conductivity refractory brick and preparation method thereof
The invention discloses a low-thermal-conductivity refractory brick and a preparation method thereof, and relates to the technical field of refractory brick preparation. The low-thermal-conductivity refractory brick is prepared from the following raw materials in parts by weight: 40-60 parts of mullite, 12-18 parts of white clay, 20-30 parts of bauxite clinker, 30-40 parts of mineral raw materials, 10-15 parts of titanium boride, 15-20 parts of fly ash, 20-30 parts of spherical closed-cell perlite, 8-12 parts of combustible substances, 5-7 parts of a green body reinforcing agent, 1-3 parts of a water reducing agent and the balance of water. According to the design, the white clay is added in the production process, the process similar to a ceramic forming process in the sintering process is facilitated, the normal-temperature compression strength of the refractory brick is high, meanwhile, the fly ash and the spherical closed-cell perlite are added, a large number of irregular air holes which are uniformly distributed can be formed in the preparation process of the refractory brick, and the low heat-conducting property of the refractory brick is guaranteed; the low-thermal-conductivity refractory brick prepared by the invention has the advantages of light weight, small volume density, low thermal conductivity, high temperature resistance, difficult deformation of the brick body and long service life.
本发明公开了一种低导热耐火砖及其制备方法，涉及耐火砖制备技术领域，该低导热耐火砖的原料按重量份分为：莫来石40‑60份、白毛土12‑18份、铝矾土熟料20‑30份、矿物原料30‑40份、硼化钛10‑15份、粉煤灰15‑20份、球形闭孔珍珠岩20‑30份、可燃尽物质8‑12份、生坯增强剂5‑7份、减水剂1‑3份和余量的水；本设计通过在生产工艺中加入白毛土，便于在烧结过程中类似陶瓷形成过程，使耐火砖的常温耐压强度高，同时加入粉煤灰和球形闭孔珍珠岩，可以使耐火砖制备过程中形成大量分布均匀的不规则气孔，保障了耐火砖的低导热性能，降低了耐火砖的体积密度，本发明制备的低导热耐火砖，不仅重量轻、体密小，热传导率低，而且耐高温，砖体不易变形，使用寿命长。
Low-thermal-conductivity refractory brick and preparation method thereof
一种低导热耐火砖及其制备方法
ZHANG SHAN (author) / DONG SHUNJIE (author) / JIANG JIE (author) / WAN ZHIHUA (author)
2023-07-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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