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Termisk isolerende strukturelle komponenter bestandige for höytemperatur korrosive media
Termisk isolerende strukturelle komponenter bestandige for höytemperatur korrosive media
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机译:耐高温腐蚀性介质的隔热结构部件
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摘要
The invention relates to a thermally insulating structural component (10) such as a cover of a container (5), in particular a molten salt electrolytic cell which component (10) is inert and resistant to corrosive media (1) at high temperature in the form of liquids, vapours and/or gases, in particular NaAlF4, AlF3, HF or O2, and which during use is exposed to such corrosive media (1). The component (10) comprises thermal insulating material (30) shielded from the corrosive media (1) by an openly porous or reticulated alumina structure (20) which is made impermeable by a compact filler material (15) resistant and inert to the corrosive media and comprising compacted particles of refractory material, in particular alumina cement. The structural component (10) can have a top metallic shell (40) which extends over the thermal insulating material (30) and downwards along lateral sides of the component (10). The insulating material (30) can be secured to the alumina structure (20) through nuts (50) and bolts (60).
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