耐磨澆注料強(qiáng)度高，高溫性能良好，體積穩(wěn)定，導(dǎo)熱系數(shù)小，康熔渣參透性和侵蝕性極強(qiáng)，耐沖刷，施工方便，爐體結(jié)構(gòu)整體性強(qiáng)等特點(diǎn)，是目前流化床鍋爐使用的一種抗磨材料，比傳統(tǒng)澆注料，可大大提高鍋爐運(yùn)行時(shí)間。
The construction body of the circulating fluidized bed power generating boiler is extremely complicated, with a large amount of construction. The pulverized coal flow rate in the system pipeline is high, and the flow velocity is high. The refractory material used for the lining is required to have high strength, good wear resistance, and excellent construction. The wear-resistant castable has high strength, good high-temperature performance, stable volume, small thermal conductivity, strong permeability and erosion of Kang slag, erosion resistance, convenient construction, and strong integrity of the furnace structure. It is the current fluidized bed boiler. An anti-wear material is used, which can greatly improve the boiler operating time than traditional castables.
| 項(xiàng)目 Items | DNM-3 | DNM-2 | DNM-1 | |
| Al2O3% ＞ | 75 | 85 | 95 | |
| SiO2% ＜ | 20 | 10 | 2 | |
| CaO%＜ | 2.5 | 1.5 | 1.2 | |
| 體積密度BD g/cm3＞ | 110℃ | 2.70 | 2.80 | 2.9 |
| 815℃ | 2.75 | 2.85 | 3.0 | |
| 1100℃ | 2.80 | 2.90 | 3.10 | |
|
耐壓強(qiáng)度 CCS Mpa |
110℃ | 60 | 140 | 140 |
| 815℃ | 70 | 150 | 135 | |
| 1100℃ | 80 | 160 | 120 | |
|
抗折強(qiáng)度 MOR Mpa |
110℃ | 8 | 22 | 22 |
| 815℃ | 9 | 21 | 18 | |
| 1100℃ | 12 | 20 | 18 | |
| 常溫磨損值CC， ＜ | 8 | 4.5 | 6 | |
| 熱震（900℃，水冷）次，不低于 | 20 | 20 | 30 | |
| 性能特點(diǎn) Feature | 耐磨損，抗侵蝕，使用溫度高，壽命長(zhǎng)，施工方便 | |||
| 使用部位 Use the parts | 衛(wèi)燃帶，返料器，混合室項(xiàng)部 | |||