| 摘要 |
A regenerative air preheater includes a masonry casing having therein a combustion chamber and a checker shaft with checker bricks, and a separating wall between the combustion chamber and checker shaft. A space is provided between the separating wall and the checker bricks. Insulating material comprising fireproof fiber material is positioned within the space. The insulating material is structurally free of the separating wall.
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