Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Refractory lining brick for throat of rotary cement kiln and preparation method of refractory lining brick
The invention relates to the technical field of refractory materials, and provides a refractory lining brick for a throat part of a rotary cement kiln, which comprises the following components in percentage by weight: 20-65% of sintered mullite, 5-15% of silicon, 10-30% of sillimanite group minerals, 10-20% of microporous mullite, 3-8% of alpha-Al2O3, 3-7% of silica sol and 1-5% of antioxidant, the particle size composition of the sintered mullite is as follows: 10%-20% of 5-3mm sintered mullite, 5%-15% of 3-1mm sintered mullite, 0%-10% of 1-0mm sintered mullite and 5%-20% of 200-mesh sintered mullite, the microporous mullite is 10%-20% of 3-1mm microporous mullite, and the particle size composition of the silicon carbide is 5%-15% of No.97 silicon carbide with 120 meshes. The refractory lining brick for the throat of the rotary cement kiln solves the problems that the space of the throat of a grate cooler is narrow, the existing construction difficulty is large, the construction quality is difficult to guarantee, and the service life is not ideal, and has the advantages of high high-temperature strength, excellent alkali-sulfur erosion resistance, excellent thermal shock stability and lower heat conductivity coefficient; and the service life of the throat part of the cement kiln grate cooler can be obviously prolonged.
本发明涉及耐火材料技术领域，提供了一种水泥回转窑喉部用耐火衬砖，包括以下重量百分比：20％‑65％烧结莫来石、5％‑15％硅、10％‑30％硅线石族矿物、10％‑20％微孔莫来石、3％‑8％α‑Al 2O3、3％‑7％硅溶胶、1％‑5％抗氧剂，所述烧结莫来石的粒度组成为：5‑3mm烧结莫来石10％‑20％、3‑1mm烧结莫来石5％‑15％、1‑0mm烧结莫来石0％‑10％、200目烧结莫来石5％‑20％，所述微孔莫来石为3‑1mm微孔莫来石10％‑20％，所述碳化硅的粒度组成为120目97#碳化硅5％～15％。解决了篦冷机喉部空间狭小，现有施工难度大，施工质量难以保证，使用寿命很不理想的难题，该水泥回转窑喉部用耐火衬砖具有高温强度高，抗碱硫侵蚀优异，热震稳定性优良，较低的导热系数，能够显著延长水泥窑篦冷机喉部使用寿命的效果。
Refractory lining brick for throat of rotary cement kiln and preparation method of refractory lining brick
The invention relates to the technical field of refractory materials, and provides a refractory lining brick for a throat part of a rotary cement kiln, which comprises the following components in percentage by weight: 20-65% of sintered mullite, 5-15% of silicon, 10-30% of sillimanite group minerals, 10-20% of microporous mullite, 3-8% of alpha-Al2O3, 3-7% of silica sol and 1-5% of antioxidant, the particle size composition of the sintered mullite is as follows: 10%-20% of 5-3mm sintered mullite, 5%-15% of 3-1mm sintered mullite, 0%-10% of 1-0mm sintered mullite and 5%-20% of 200-mesh sintered mullite, the microporous mullite is 10%-20% of 3-1mm microporous mullite, and the particle size composition of the silicon carbide is 5%-15% of No.97 silicon carbide with 120 meshes. The refractory lining brick for the throat of the rotary cement kiln solves the problems that the space of the throat of a grate cooler is narrow, the existing construction difficulty is large, the construction quality is difficult to guarantee, and the service life is not ideal, and has the advantages of high high-temperature strength, excellent alkali-sulfur erosion resistance, excellent thermal shock stability and lower heat conductivity coefficient; and the service life of the throat part of the cement kiln grate cooler can be obviously prolonged.
本发明涉及耐火材料技术领域，提供了一种水泥回转窑喉部用耐火衬砖，包括以下重量百分比：20％‑65％烧结莫来石、5％‑15％硅、10％‑30％硅线石族矿物、10％‑20％微孔莫来石、3％‑8％α‑Al 2O3、3％‑7％硅溶胶、1％‑5％抗氧剂，所述烧结莫来石的粒度组成为：5‑3mm烧结莫来石10％‑20％、3‑1mm烧结莫来石5％‑15％、1‑0mm烧结莫来石0％‑10％、200目烧结莫来石5％‑20％，所述微孔莫来石为3‑1mm微孔莫来石10％‑20％，所述碳化硅的粒度组成为120目97#碳化硅5％～15％。解决了篦冷机喉部空间狭小，现有施工难度大，施工质量难以保证，使用寿命很不理想的难题，该水泥回转窑喉部用耐火衬砖具有高温强度高，抗碱硫侵蚀优异，热震稳定性优良，较低的导热系数，能够显著延长水泥窑篦冷机喉部使用寿命的效果。
Refractory lining brick for throat of rotary cement kiln and preparation method of refractory lining brick
一种水泥回转窑喉部用耐火衬砖及其制备方法
WANG QIANG (Autor:in) / CHEN XUEFENG (Autor:in) / YUAN LIN (Autor:in) / WANG XUYUAN (Autor:in) / LI YUANJIN (Autor:in) / LI WEI (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
Romanian Experience of Refractory Brick Use at Rotary Kiln Lining in the Cement Industry
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