A box-type resistance furnace structure

The furnace structure, composed of detachable L-shaped modules and automatic electrical connections, solves the problem of having to scrap the entire existing box-type resistance furnace after partial damage to the furnace chamber, enabling modular rapid replacement and simplified maintenance.

CN122345324APending Publication Date: 2026-07-07XIAN CHENGHANG FURNACE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN CHENGHANG FURNACE CO LTD
Filing Date
2026-06-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing box-type resistance furnaces require complete scrapping of the furnace chamber due to partial damage, and cleaning and maintenance are cumbersome, time-consuming, and difficult to replace heating elements.

Method used

The furnace structure is composed of detachable L-shaped modules. The heating element is automatically fixed and the circuit is connected through the pushing part and the energizing part on the insulation block. Damaged modules can be replaced individually, simplifying the maintenance process.

Benefits of technology

When a part is damaged, only the damaged module needs to be replaced, without having to disassemble the entire furnace shell and insulation layer, thus shortening repair time, reducing maintenance costs, and simplifying the operation process.

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    Figure CN122345324A_ABST
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Abstract

The present application relates to the technical field of resistance furnace, particularly relates to a box type resistance furnace structure; including furnace shell, controller, heat preservation layer and furnace door; the middle part of the front wall of heat preservation layer is provided with a through hole, the heat preservation block is detachably and sealingly installed in the through hole, and the hearth is detachably installed in the heat preservation layer; the present application is combined into detachable hearth by four L-shaped modules in turn, the pushing part and the power supply part are integrated on the heat preservation block, so that when the hearth is damaged locally due to blasting or other reasons, only the damaged L-shaped module needs to be replaced, and the furnace shell and the heat preservation layer do not need to be disassembled, at the same time, the heat preservation block is installed and the linkage in the pushing process of the L-shaped module is utilized, the compression fixing and circuit conduction of the heating element are automatically completed, and the problems that the existing integral hearth needs to be scrapped as a whole after blasting, many components need to be disassembled, and the maintenance time is long are solved.
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