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Heat treatment furnace

A heat treatment furnace and heat storage technology, used in waste heat treatment, furnaces, furnace components, etc., can solve the problems of damage to the treatment object, difficulty in shortening the flame length, and increase in flame temperature, and achieve the effect of reducing the amount of NOX produced.

Active Publication Date: 2019-01-15
CHUGAI RO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the supply of fuel and combustion air is increased as described above, the flame temperature during combustion will increase, and it will not be possible to sufficiently reduce NO. X In addition, it is difficult to make the diameter of the flame sufficiently large along the diameter-enlarging portion provided on the furnace wall, and it is difficult to shorten the length of the flame during combustion, so that the processing objects in the furnace come into contact with the flame and the processing Objects causing damage such problems

Method used

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Embodiment Construction

[0052] Hereinafter, a heat treatment furnace according to an embodiment of the present invention will be described in detail based on the drawings. In addition, the heat treatment furnace of this invention is not limited to the facility shown in the following embodiment, It can change suitably and implement in the range which does not change the idea of ​​invention.

[0053] Here, in the heat treatment furnace of the first embodiment, if figure 1 As shown in (A), (B), etc., in the furnace 10, the top-side regenerative burner 20 is provided at the center of the circular top 11, and the cylindrical main body 12 of the furnace 10 is provided with a There are two main body side regenerative burners 30 , 30 , and these two main body side regenerative burners 30 , 30 are located on opposite sides across the central portion of the furnace 10 .

[0054] In addition, if figure 2 As shown in (A) and (B), when the combustion operation is performed in the above-mentioned top side regen...

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Abstract

When a top side heat storage burner (20) provided at a top portion (11) and a main body side heat storage burner (30) provided in a main body portion (12) are alternately switched to perform a combustion operation and a heat storage operation, when the top side heat storage burner performs the combustion operation, the heated combustion air is supplied from a top side supply and exhaust port (24)into a furnace (10) while rotating along the inner circumference of a cylindrical top side guide path (23), and the fuel is burned while rotating. In another aspect, when the main body side heat storage burner performs the combustion operation, the heated combustion air passes through a main body side guide path (32) to be supplied from the main body side supply and exhaust port (31) along the inner circumference of the main body portion in the furnace, in order that the fuel is burned while rotating along the inner circumference of the main body portion.

Description

technical field [0001] The present invention relates to a heat treatment furnace, which adopts a regenerative burner to alternately switch between combustion operation and heat storage operation. During the combustion operation, the heat is heated and burned by the heat stored in the heat storage part of the heat storage part. Air is used, and the heated combustion air passes through the guide path and is guided into the furnace from the supply and exhaust port, and the fuel supplied from the fuel supply nozzle and the above-mentioned heated combustion air are combusted in the furnace, and the other On the one hand, during the heat storage operation, the combustion exhaust gas burned in the furnace is guided to the heat storage part containing the heat storage element to store the heat of the combustion exhaust gas in the heat storage element. In particular, in a heat treatment furnace in which regenerative burners are provided on the top and main body of the furnace, respecti...

Claims

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Application Information

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IPC IPC(8): F27D17/00F23L15/00
CPCF23L15/00F27D17/004F27D2017/007Y02E20/34
Inventor 河本祐作川端健介
Owner CHUGAI RO CO LTD
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