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Medium-low temperature heat treatment furnace

A low-temperature heat treatment and furnace body technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of complex furnace structure, long construction period, and difficult construction, and achieve good heat exchange effect, high product quality, and promotion. The effect of temperature uniformity

Pending Publication Date: 2020-07-10
CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure of the furnace is very complicated, the investment is high, the construction is difficult, and the construction period is long

Method used

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Embodiment Construction

[0034] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0035] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention belongs to the field of industrial furnaces, and relates to a medium-low temperature heat treatment furnace. The medium-low temperature heat treatment furnace comprises a furnace body, wherein a workpiece conveying mechanism arranged in the extending direction of the furnace body is arranged in the furnace body, at least one heat supply section is arranged in the furnace body in theconveying direction of the workpiece conveying mechanism, each heat supply section comprises at least one burner arranged at the top of the furnace body and at least one in-furnace flue gas self-circulation system, and a smoke outlet is formed in the furnace body. According to the medium-low temperature heat treatment furnace, the transverse heat supply balance of a hearth can be guaranteed; the convection heat transfer effect in the furnace is enhanced; the furnace temperature uniformity, especially the temperature uniformity at medium and low temperatures, can be improved; when a in-furnaceflue gas circulation system fails, normal production can still be achieved; the furnace discharges smoke from the tail of the preheating section, the smoke discharge temperature is low, and the heat efficiency is high; and the in-furnace circulation system cannot increase the height of the hearth, and the furnace profile structure is simple and reliable.

Description

technical field [0001] The invention belongs to the field of industrial furnaces and relates to a medium and low temperature heat treatment furnace Background technique [0002] There are two types of existing medium and low temperature heat treatment furnaces (a typical representative is a steel pipe walking tempering furnace): [0003] One is the conventional open flame heating furnace type, which completely relies on multi-point heating in the furnace and has no flue gas circulation system. [0004] This structure mainly has the following problems: [0005] First of all, because there is no flue gas circulation and stirring function, for medium and low temperature heat treatment mainly based on convective heat transfer, especially low temperature heat treatment below 500 °C, the furnace temperature uniformity is poor, which cannot meet high-quality products (such as sulfur-resistant pipes, High pressure boiler tube, etc.) heat treatment process requirements. Secondly, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00C21D1/52F27D7/04
CPCC21D1/52C21D9/0056F27D7/04F27D2007/045
Inventor 刘凤益李朋雷薇韩晓任王辉尧
Owner CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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