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Gas catalytic flameless near-infrared heating annealing furnace

A gas-catalyzed, near-infrared technology, which is applied to heat treatment furnaces, furnaces, and furnace types, can solve problems such as high maintenance costs, low site utilization, and short furnace overhaul periods, and achieve high thermal efficiency.

Active Publication Date: 2015-10-07
北京秦冶众智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The further technical problem to be solved by the present invention is: to enable the annealing furnace to solve the problems of low furnace temperature, high energy consumption, low output, short furnace body overhaul cycle, high maintenance cost, and site utilization rate existing in the existing electrothermal muffle annealing furnace. low problem

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  • Gas catalytic flameless near-infrared heating annealing furnace

Examples

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Embodiment 1

[0058] A gas-fired catalytic flameless near-infrared heating annealing furnace (see figure 1 ), the annealing furnace is used for bright annealing of stainless steel strips that need to ensure the atmosphere in the furnace. It includes a furnace shell 4, a furnace lining 7, a heating system, a cooling system 10, and a conveying system 12. The furnace shell is a high-temperature section, and the cooling system is a cooling part;

[0059] The cooling system 10 is installed at the rear end of the furnace shell 4. The cooling system 10 includes a heat exchanger 101 and a forced cooling fan 102. The rear end of the cooling system 10 is provided with a protective gas outlet 11;

[0060] The conveying system 12 includes an uncoiler 1201, stainless steel belt rollers 1203, S rollers 1204, and a coiler 1205 in the furnace. One end of the stainless steel belt 1202 is wound on the uncoiler 1201, and the other end passes through the furnace shell 4 and cooled in turn. System 10 , S roll ...

Embodiment 2

[0071] A gas-fired catalytic flameless near-infrared heating annealing furnace, which is used for annealing stainless steel strips that do not need to ensure the atmosphere in the furnace, the basic structure of the annealing furnace is the same as that of Embodiment 1, the difference lies in: (1) cooling system The rear end of 10 is not provided with a protective gas outlet 11; the front end of the furnace shell 4 is not provided with an inlet sealing device 1, a front protective gas release port 2, and a protective gas inlet 3 in the furnace chamber, and the rear end of the furnace shell 4 is not provided with a rear protective gas release Mouth 9.

[0072] (2) The gas-fired catalytic flameless near-infrared heating porous media burner 6 is a gas-fired catalytic flameless near-infrared direct heating porous media burner (see image 3 ), which includes a burner body 607, an insulating layer 605, and a refractory brick layer 604. The refractory brick layer 604 is located in the ...

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Abstract

The invention relates to a gas catalytic flameless near-infrared heating annealing furnace, and relates to an annealing furnace. The gas catalytic flameless near-infrared heating annealing furnace comprises a furnace shell, a furnace liner, a heating system, a cooling system and a transport system, wherein a fire-resisting material layer is arranged between the furnace shell and the furnace liner, the heating system is embedded in the fire-resisting material layer and is a gas catalytic flameless near-infrared heating porous medium burner, the heating system comprises a burner body, a heat preservation layer and a refractory brick layer, a pre-mixed gas dispersing chamber, a perforated plate, a pre-mixed gas homogenizing chamber, a flame-preventing screen plate and a foam ceramic plate are arranged in the refractory brick layer, the bottom of the pre-mixed gas dispersing chamber is communicated with a pre-mixed gas supply pipe, and heat-preserving cotton is arranged between the periphery of the pre-mixed dispersing chamber and the refractory brick layer; the upper end surface and the lower end surface of the burner body are connected together by virtue of an upper pressing plate, a lower pressing plate and a connecting piece. The gas catalytic flameless near-infrared heating annealing furnace is high in heat efficiency, complete in burning, low in pollutant emission and applicable to the annealing process needing the protection of atmosphere in the furnace, has characteristics of high temperature, low energy consumption, high yield, low repair cost and the like and is likely to popularize and use.

Description

technical field [0001] The invention relates to an annealing furnace, in particular to a gas catalytic flameless near-infrared heating annealing furnace. Background technique [0002] In mechanical processing, the workpiece usually needs to be annealed. For example, after the stainless steel strip is cold-rolled, work hardening will occur. Therefore, annealing must be carried out so that the mechanical properties of the steel strip can meet the user's requirements. At present, the annealing furnaces on the market generally use direct-fired annealing furnaces. The heating system of this annealing furnace has problems such as incomplete combustion, low thermal efficiency, poor combustion stability, and high emissions of combustion pollutants. [0003] In addition, at present, the annealing furnaces that need to ensure the atmosphere in the furnace, such as stainless steel belt bright annealing furnaces, are mainly electric muffle annealing furnaces. The so-called muffle refers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00C21D1/26
Inventor 周海波
Owner 北京秦冶众智科技有限公司
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