A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water-coal-slurry gasification furnace lining material based on high-chromium castable and preparation method of water-coal-slurry gasification furnace lining material
The invention relates to a coal water slurry gasification furnace lining material based on a high-chromium castable and a preparation method of the coal water slurry gasification furnace lining material. According to the technical scheme, 57-64wt% of fused chromic oxide particles and 5-10wt% of fused magnesia-chrome spinel particles are used as aggregates, and 14-21wt% of fused chromic oxide fine powder, 3-6wt% of chromic oxide green fine powder, 2-4wt% of alpha-alumina fine powder, 1-3wt% of light-burned magnesia fine powder and 3-4wt% of hydrated alumina fine powder are used as matrixes; and polycarboxylate which accounts for 0.15-0.2 wt% of the sum of the aggregate and the matrix is added as a water reducing agent. The preparation method comprises the following steps: mixing the aggregate, the matrix and the water reducing agent, adding 3.5-5wt% of water, stirring, carrying out vibration molding, maintaining at 40-80 DEG C under the humidity of 70-80%, demolding, baking, and carrying out heat preservation at 1400-1700 DEG C for 3-8 hours, thereby obtaining the coal water slurry gasifier lining material based on the high-chromium castable. The prepared product is high in compression strength, low in apparent porosity, good in chemical stability, excellent in thermal shock resistance and excellent in slag resistance.
本发明涉及一种基于高铬浇注料的水煤浆气化炉炉衬材料及其制备方法。其技术方案是：以57～64wt％的电熔氧化铬颗粒和5～10wt％的电熔镁铬尖晶石颗粒为骨料，以14～21wt％的电熔氧化铬细粉、3～6wt％的氧化铬绿细粉、2～4wt％的α‑氧化铝细粉、1～3wt％的轻烧镁砂细粉和3～4wt％的水合氧化铝细粉为基质；外加骨料和基质之和0.15～0.2wt％的聚羧酸盐类为减水剂。将骨料、基质和减水剂混合，再外加3.5～5wt％的水，搅拌，振动成型，在40～80℃和湿度为70‑80％的条件下养护，脱模，烘烤，在1400～1700℃条件下保温3～8h，制得基于高铬浇注料的水煤浆气化炉炉衬材料。所制制品耐压强度高、显气孔率低，化学稳定性好、抗热震性能优良、抗渣性能优异。
Water-coal-slurry gasification furnace lining material based on high-chromium castable and preparation method of water-coal-slurry gasification furnace lining material
The invention relates to a coal water slurry gasification furnace lining material based on a high-chromium castable and a preparation method of the coal water slurry gasification furnace lining material. According to the technical scheme, 57-64wt% of fused chromic oxide particles and 5-10wt% of fused magnesia-chrome spinel particles are used as aggregates, and 14-21wt% of fused chromic oxide fine powder, 3-6wt% of chromic oxide green fine powder, 2-4wt% of alpha-alumina fine powder, 1-3wt% of light-burned magnesia fine powder and 3-4wt% of hydrated alumina fine powder are used as matrixes; and polycarboxylate which accounts for 0.15-0.2 wt% of the sum of the aggregate and the matrix is added as a water reducing agent. The preparation method comprises the following steps: mixing the aggregate, the matrix and the water reducing agent, adding 3.5-5wt% of water, stirring, carrying out vibration molding, maintaining at 40-80 DEG C under the humidity of 70-80%, demolding, baking, and carrying out heat preservation at 1400-1700 DEG C for 3-8 hours, thereby obtaining the coal water slurry gasifier lining material based on the high-chromium castable. The prepared product is high in compression strength, low in apparent porosity, good in chemical stability, excellent in thermal shock resistance and excellent in slag resistance.
本发明涉及一种基于高铬浇注料的水煤浆气化炉炉衬材料及其制备方法。其技术方案是：以57～64wt％的电熔氧化铬颗粒和5～10wt％的电熔镁铬尖晶石颗粒为骨料，以14～21wt％的电熔氧化铬细粉、3～6wt％的氧化铬绿细粉、2～4wt％的α‑氧化铝细粉、1～3wt％的轻烧镁砂细粉和3～4wt％的水合氧化铝细粉为基质；外加骨料和基质之和0.15～0.2wt％的聚羧酸盐类为减水剂。将骨料、基质和减水剂混合，再外加3.5～5wt％的水，搅拌，振动成型，在40～80℃和湿度为70‑80％的条件下养护，脱模，烘烤，在1400～1700℃条件下保温3～8h，制得基于高铬浇注料的水煤浆气化炉炉衬材料。所制制品耐压强度高、显气孔率低，化学稳定性好、抗热震性能优良、抗渣性能优异。
Water-coal-slurry gasification furnace lining material based on high-chromium castable and preparation method of water-coal-slurry gasification furnace lining material
基于高铬浇注料的水煤浆气化炉炉衬材料及其制备方法
LI YAWEI (author) / LIAO ZIXIN (author) / LIAO NING (author)
2024-12-03
Patent
Electronic Resource
Chinese
| European Patent Office | 2015
| European Patent Office | 2024
| European Patent Office | 2022
Furnace lining gap repairing material and furnace lining gap repairing method
| European Patent Office | 2020