Multiple fire hole flame-free ceramic burner

A ceramic burner and fire hole technology, which is applied in the field of flameless combustion ceramic burners and ceramic burners, can solve the problems affecting the heat exchange effect of the regenerator, improve the working condition of the vault, and achieve reasonable design and manufacturing construction easy effect

Inactive Publication Date: 2010-01-06
武汉冶金建筑研究院 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the center of the recirculation zone (in the center of the regenerator), the flue gas flow rate is very low or negative, while at the periphery of the rotating recirculation zone, the air velocity is high, which will affect the heat exchange effect of the regenerator

Method used

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  • Multiple fire hole flame-free ceramic burner
  • Multiple fire hole flame-free ceramic burner
  • Multiple fire hole flame-free ceramic burner

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings. as attached figure 2 As shown, the outer wall of the burner is provided with two upper and lower gas rings 3, 4, of which the air ring 3 is located above the gas ring 4, and guide bricks are also arranged in the gas ring to make the gas distribution more uniform . After the gas and combustion-supporting air are preheated in their respective rings 3 and 4, they enter the front section of the mixing channel 7 through the injection holes 5 and 6, and the gas injection holes 6 enter the mixing channel in a direction parallel to the centerline of the combustion port 8 7. The air injection hole 5 enters the mixing channel 7 at an angle of 90° to the center line of the combustion port 8 . The gas injection hole 6 is designed with the structure of the boss to prevent the gas from tempering. Under the action of the pressure of the gas jet flow and the air flow of th...

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Abstract

The multiple fire hole flame-free ceramic burners is used in flameless combustion industrial furnace and kiln, especially hot blast stove for iron making blast furnace. The multiple fire hole flame-free ceramic burner has two outer ring gas channels. After air through the air inlet and gas through the gas inlet enter the air preheating ring channel and the gas ring channel, gas and air are preheated in between two ring channels before jetting to the mixer for mixing and jetting through the combustion nozzle to combust. The gas ring channel has guide bricks for homogeneous distribution of gas. The present invention has unique structure, small size and great power, and is suitable for various kinds of hot blast stove with heat accumulator.

Description

technical field [0001] The invention belongs to the technical field of ceramic burners for industrial furnaces, in particular to the technical field of ceramic burners for flameless combustion of top-fired hot blast stoves in ironmaking blast furnaces. Background technique [0002] The top-combustion hot blast stove is a new type of furnace structure. Since the 1960s, metallurgists in various countries have begun to pay attention to it and then carried out extensive research; at present, the top-fired hot blast stove has been considered as a hot blast Furnace technology development direction. Since the top-combustion hot blast stove does not have a special combustion chamber for gas combustion, its top space is much smaller than the tall combustion chamber of the external combustion hot blast stove and the internal combustion hot blast stove. In such a small space, In order to realize the complete combustion of a huge amount of gas, a flameless combustion device with high c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D14/02C21B9/02
CPCY02E20/34
Inventor 戴方钦董焰蔡简元章炳炎卢向党
Owner 武汉冶金建筑研究院
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