Ironmaking blast furnace hydrocyclone fluidized strengthen water-cooled wall apparatus

一种炼铁高炉旋液流态化强化水冷壁装置

Abstract

The invention relates to a rotary liquid fluidization and reinforcement water screen device for a blast furnace. A cooling tube of the water screen is arranged on one side close to a hot surface; one side of the hot surface is designed with horizontal ribbed slabs in equidistant arrangement; the height b3 of the ribbed slab is between 50 and 100 mm; a horizontal section of one side of the hot surface is of a waveform shape; and the depth b4 between a wave trough and a wave crest is between 30 and 60 mm. Level sections of the cooling tube and a fluidization washing liquid inlet and outlet pipeline are provided with spiral lines inside. The water screen is connected with a particle circulating groove through the inlet and outlet pipeline and a triple valve to form a water supply, drainage and fluidization washing system which is simple in switching operation. The cooling strength of the cooling reinforcement cast steel water screen is close to that of a copper cooling wall; the structure of the ribbed slab and deformation surface has the strong slag adhering and antifalling capacities, the throttling effect of inhibiting edge airflow, can form a complete and stable slag crust on the hot surface, and achieve the level of service life and energy conservation as much as the copper cooling wall.
一种炼铁高炉旋液流态化强化水冷壁装置,水冷壁的冷却管设置在很靠近热面的一侧;热面一侧设计有等间距排列的水平肋板,肋板的高度b<sub>3</sub>有50~100mm;热面一侧的水平截面形状为波形,波谷波峰之间的深度b<sub>4</sub>有30mm~60mm。冷却管和流态化清洗液进出管线的水平段内设置螺旋线。水冷壁通过进出管线、三通阀与粒子循环槽连接形成供排水和流态化清洗系统,切换操作简便。这种冷却强化的铸钢水冷壁,其冷却强度与铜冷却壁相当接近,肋板与变形面结构的挂渣能力和抗脱落能力强,又有抑制边缘气流的节流作用,能够在热面形成完整、稳定的渣皮,达到与铜冷却壁差不多一样的长寿、节能水平。

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