一种煤粉炉用低导热浇注料

Abstract

本实用新型公开了一种煤粉炉用低导热浇注料，包括上层浇注料本体和下层浇注料本体，二者均为六面体结构；包括连接所述上下层浇注料本体的连接件，上下层浇注料本体侧壁设有若干通孔；上下层浇注料本体的结合面为相互匹配的V型槽结构；上下层浇注料本体的侧壁设有凹凸榫卯结构。本实用新型公开了一种煤粉炉用低导热浇注料，包括上层浇注料本体和下层浇注料本体，二者均为六面体结构；二者结合面设有V型槽互锁结构，侧壁设有凹凸榫卯结构；通过连接件实现固定连接；本体侧壁设有若干通孔并可沿厚度方向呈梯度分布。该结构能够增强层间连接强度，缓解热应力，提高抗热震性能及隔热效果。

Claims

1. A low thermal conductivity castable for pulverized coal boilers, characterized in that, It includes an upper castable body and a lower castable body, both of which are hexahedral structures; it also includes a connector for fixing the upper castable body and the lower castable body together, wherein the side walls of the upper castable body and the lower castable body are provided with several through holes; the mating surfaces of the upper castable body and the lower castable body are mutually matching V-groove structures; and the side walls of the upper castable body and the lower castable body are provided with mutually matching mortise and tenon structures.

2. The low thermal conductivity castable for a pulverized coal furnace according to claim 1, characterized by, The diameter of the through holes on the sidewalls of the upper and lower castable bodies is 3 to 8 mm.

3. The low thermal conductivity castable for a pulverized coal furnace according to claim 1, characterized by, The distance between the through holes and adjacent through holes on the sidewalls of the upper and lower castable bodies is 5 to 16 mm.

4. The low thermal conductivity castable for a pulverized coal furnace according to claim 1, characterized by, The connector is made of corundum ceramic fiber reinforced composite material; heat-resistant metal anchors are pre-embedded inside the upper and lower castable bodies, and the ends of the anchors are exposed on the mating surface and are hooked together by the connector.

5. The low thermal conductivity castable for a pulverized coal furnace according to claim 1, wherein The diameter or spacing of the through holes varies in a gradient along the thickness direction of the castable body.

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