ʻO ka silica refractory brick he waika refractory a he maikaʻi ke kūpaʻa ʻana o ka waika slag erosion. ʻO ka refractoriness o nā pōhaku lepo ma lalo o ka ukana a hiki i ka 1640 ~ 1690 ℃, ʻike ʻia ka mahana palupalu mua o 1620 ~ 1670 ℃ a ʻo ka nui maoli ka 2.35g/cm3. Hiki ke lawelawe ʻo Silicon fire brick i ka wela wela no ka wā lōʻihi a mālama i ka paʻa o ka leo me ka ʻole o ka loli. Loaʻa i ka 94% ʻo SiO2 ka ʻiʻo Silicon reractory brick. He ʻoi aku ka ikaika o ka wela kiʻekiʻe a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa. Hana ʻia nā pōhaku ahi silicate me ka silica ore maoli e like me ka mea maka, hoʻohui i ka mineralizer kūpono e hāpai i ka quartz i loko o ke kino ʻōmaʻomaʻo i hoʻololi ʻia i tridymite a puhi mālie ʻia ma o ka mahana o 1350 ~ 1430 ℃ i ka hoʻohaʻahaʻa ʻana i ka lewa. Ke wela a hiki i 1450 ℃, aia nā helu 1.5 ~ 2.2% o ka hoʻonui nui o ka leo. ʻO kēia ma hope o ka hoʻonui ʻana e hoʻopaʻa ʻia ka ʻoki hui ʻana a hōʻoia i ka mālama ʻana i ka ea impermeability maikaʻi a me ka ikaika o ka hale.
Na waiwai o ka Brick Silica Ahi
- ʻO ke kūpaʻa maikaʻi o ka waika erosion,
- ikaika wela wela,
- Kiʻekiʻe refractoriness: 1690 ~ 1710 ° C,
- RUL kiʻekiʻe: ma kahi o 1620-1670 ℃,
- Paʻa leo ma ka wela kiʻekiʻe,
- Kūleʻa haʻalulu wela maikaʻi.
Huipuia o Silica Ahi Brick
ʻO ka pahu ahi silikoni he brick refractory i ʻoi aku ka nui o ka silica ma mua o 93%, 50% -80% o tridymite, 10% -30% o ka cristobalite, quartz a me ka māhele aniani, ma kahi o 5% -15%. ʻO ka hui mineralogical o ka silicate brick ka nui o ka quartz a me ka quartz, a me kahi liʻiliʻi o ka quartz a me ka vitreous. ʻO ka quartz unahi, ka quartzite quartz a me ke koena quartz hoʻololi nui i ka leo ma muli o ka hoʻololi ʻana o ke ʻano aniani i ka haʻahaʻa haʻahaʻa, no laila ʻilihune ka paʻa wela o ka silicate refractory brick i ka haʻahaʻa haʻahaʻa. Ma ke kaʻina hana, ma lalo o 800 ℃ e hoʻolōʻihi i ka hoʻomehana a me ka hoʻoluʻu, i mea e pale ai i nā māwae. No laila ʻaʻole pono ma lalo o 800 ℃ nā lele wela o ke kiln.
Ke Kaʻina Hana Hana Pilika Ahi
Hana ʻia nā pōhaku ahi silicate mai ka quartzite me kahi mea liʻiliʻi o ka mineralizing agent. Ke puhi ʻia i ka wela kiʻekiʻe, ʻo ka silica refractory bricks mineral composition i haku ʻia me ka quartz unahi, ka quartzite quartz, ke aniani a me nā mea paʻakikī ʻē aʻe i hoʻokumu ʻia i ka wela kiʻekiʻe, a ʻoi aku ka nui o AiO2 ma mua o 93%. Ma waena o nā pōhaku silica maikaʻi i puhi ʻia, ʻo ka ʻike o ka quartz scale ka mea kiʻekiʻe loa, ʻo 50% ~ 80%. ʻO cristobalit ka mea aʻe, he 10% a 30% wale nō. ʻO nā mea i loko o ka quartz a me ka māhele aniani e loli ma waena o 5% a me 15%
ʻO Rongsheng Refractory Silica Fire Brick Specifications
| 'ikamu/helu helu | QG-0.8 | QG-1.0 | QG-1.1 | QG-1.15 | QG-1.2 |
| SiO2 % | ≥88 | ≥91 | ≥91 | ≥91 | ≥91 |
| ʻAiʻa nui g/cm3 | ≤0.85 | ≤1.00 | ≤1.10 | ≤1.15 | ≤1.20 |
| Puanu Puu ikaika Mpa | ≥1.0 | ≥2.0 | ≥3.0 | ≥5.0 | ≥5.0 |
| 0.2Mpa Refractoriness Ma lalo o ka ukana T0.6 ℃ | ≥1400 | ≥1420 | ≥1460 | ≥1500 | ≥1520 |
| Hoʻololi Linear mau ma ka hoʻomehana hou % 1450 ℃ * 2h | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 |
| 20 ~ 1000 ℃ Hoʻonui Thermal 10 ~ 6 / ℃ | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| ʻO ka hoʻokō wela (w/m*k) 350 ℃ | 0.55 | 0.55 | 0.6 | 0.65 | 0.7 |
Hoʻohana ʻia ʻo Silica Fire Brick
Hoʻohana nui ʻia nā pōhaku ahi silica e like me nā mea refractory no ka pā pale o ke keʻena coking a me ka combustor i loko o ka umu coke, ke keʻena regenerative a me ka ʻeke ʻeke i loko o ka steelmaking open-hearth umu, soaking pit umu ahi a me ke aniani melting furnace, a me nā wahi kaumaha ʻē aʻe a ma luna o ka ceramic. kiln kiln. Hiki ke hoʻohana ʻia nā pōhaku silicate no ka wahi kaumaha ma ka wela kiʻekiʻe a ma luna o ka umu ahi ahi hāmama.
