Roller hearth type resistance-heated furnace and resistance heater thereof

The utility model provides a roller hearth type resistance-heated furnace and a resistance heater thereof. The resistance heater comprises a housing without a top cover, bottom fireproofing materials arranged on the housing inner bottom, lateral part fireproofing materials arranged on housing inner...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WEI GANG, TANG KAIRONG, CHEN DONG, ZHANG YUANSU, JING SONG, DU XIAOLI, TONG ZHENG, LI DINGHONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model provides a roller hearth type resistance-heated furnace and a resistance heater thereof. The resistance heater comprises a housing without a top cover, bottom fireproofing materials arranged on the housing inner bottom, lateral part fireproofing materials arranged on housing inner lateral parts and at least one resistance tape located in a space enclosed by the bottom fireproofing materials and the lateral part fireproofing materials. The resistance heater comprises fireproof elevating members and a metal cover plate, wherein the fireproof elevating members are arranged on the lateral part fireproofing materials and/or the bottom fireproofing materials and are higher than the upper surfaces of the lateral part fireproofing materials; the metal cover plate is arranged on the fireproof elevating members and possesses an area no less than an area of a housing upper surface; the fireproof elevating members and the metal cover plate are constructed in such a way that the space enclosed by the bot