Nā Pōpō Keramika Alumina no ka Mālama Wela a me ka Mālama Wela no nā Umu ʻOihana
Nā Pōpō Keramika Alumina no ka Mālama Wela a me ka Mālama Wela no nā Umu ʻOihana
Hana ʻia ka pōpō keramika mālama wela me ka alumina ʻoihana a me ke kaolin refractory ma ke ʻano he mau mea maka nui. Ua hoʻomohala ʻia, hoʻohālikelike ʻia a calcined ʻia i ka mahana kiʻekiʻe. Loaʻa iā ia nā waiwai maikaʻi:
1) Ka ikaika mechanical kiʻekiʻe a me ke ola lawelawe lōʻihi;
2) Paʻa kemika maikaʻi, ʻaʻohe hopena kemika me nā mea;
3) Kūpaʻa maikaʻi ke kiʻekiʻe o ka mahana, hiki i ka mahana kūpaʻa wela kiʻekiʻe loa ke hiki i 1900 ℃.
| Mea | Pōpō mālama anuanu | Pōpō mālama wela |
| Al₂O₃ (%) | 20-30 | ≥65 |
| SiO₃+Al₂O₃(%) | ≥90 | |
| Fe₂O₃(%) | ≤1 | ≤1.6 |
| Ka nui (mm) | 10-20/20-40 | 16-18/20-25 |
| Ka mana wela (J/kg.k) | ≥836 | ≥1000 |
| Ka hoʻokele wela (w/mk) | 2.6-2.9 | 2-4 |
| Ke kū'ē ʻana i ka haʻalulu wela (℃) | 800 | 1000 |
| Ka paʻakikī (℃) | 1550 | 1750 |
| Pohō ʻana o ka ʻūlū (%) | ≤0.1 | |
| Paʻakikī Mohs (scal) | ≥6.5 | |
| Ikaika kuʻi (N) | 800-6000 | 1800-3800 |
| Ka nui o ka nui (kg/m3) | 1300-1400 | 1500-1600 |
1) He kūpono loa ia no nā umu hoʻololi wela kiʻekiʻe a me ka haʻahaʻa, nā mea hoʻoponopono, nā hydroconverters, nā pahu desulfurization a me nā umu methanation i nā mea kanu mea hoʻouluulu kemika, a ke pāʻani nei i ke kuleana o ka hoʻopuehu ʻana i ke kinoea a me ka wai, a me ke kākoʻo, ka uhi ʻana a me ka pale ʻana i nā mea hoʻoulu.
2) Hiki ke hoʻohana ʻia i loko o nā umu pahū wela a me nā lako hoʻololi hoʻomehana i ka ʻoihana kila.
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