Tubular air preheater by utilizing waste heat of high-temperature flue gas from dezincification process in metallurgical rotary hearth furnace

The utility model relates to a tubular air preheater by utilizing the waste heat of the high-temperature flue gas from the dezincification process in a metallurgical rotary hearth furnace. The tubular air preheater comprises a shell and heat exchange pipes installed in the shell, wherein the heat ex...

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Bibliographic Details
Main Authors ZENG HUI, LI JIANYUN, WEI XINMIN, XUE QINGGUO, LI LAISUO, SUN LIYU, DUAN LUANFANG, LIU XING, YANG JUN, SUN GUOHONG
Format Patent
LanguageChinese
English
Published 19.05.2010
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Summary:The utility model relates to a tubular air preheater by utilizing the waste heat of the high-temperature flue gas from the dezincification process in a metallurgical rotary hearth furnace. The tubular air preheater comprises a shell and heat exchange pipes installed in the shell, wherein the heat exchange pipes are arranged between the air inlet port and the air outlet port of the shell, and an ash discharge port is arranged at the bottom of the shell. The heat exchange pipes adopt multi-row and multi-layer detachable structures and can be arranged in 12 to 20 rows along the flowing direction of the flue gas, and each row has 30 to 40 layers and adopts a double-tube layer structure; and the row pitch and the layer pitch are both 2 to 3 times of the outer diameter of the heat exchange pipe. The tubular air preheater can be used for recovering the waste heat of the high-temperature flue gas from the dezincification process in the metallurgical rotary hearth furnace and at the same time preheats the secondary wi
Bibliography:Application Number: CN200920224445U