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Combustor implementing ultra-low oxidized burning loss during heating steel billet

A billet heating and burner technology, used in burners, gas fuel burners, combustion methods, etc., can solve problems such as limited potential and insignificant effects, and achieve the effects of long service life, simple structure and stable combustion

Inactive Publication Date: 2008-02-27
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are less effective and have limited potential

Method used

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  • Combustor implementing ultra-low oxidized burning loss during heating steel billet
  • Combustor implementing ultra-low oxidized burning loss during heating steel billet

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] In Fig. 1, the burner has a mounting plate 1, a burner brick 2 in front of the mounting plate, a burner shell 3 behind the mounting plate, and a gas supply channel 4 at the center line of the mounting plate and the burner shell, which is connected with the gas The annular channel formed by the channel is the air channel 5, and the air channel in the burner brick is divided into four parts 6, corresponding to the four air nozzles 7 of the burner brick, each air channel has a side hole 8, when the burner is installed, The end of the burner brick is coplanar with the inner side of the furnace wall, and there is no part that goes deep into the furnace. The burner works like this: after the gas enters from the gas channel 9, it is directly sprayed into the furnace through the gas nozzle 11, after the preheated air enters from the air inlet 10, after passing through the annular air channel, it enters the burner brick and distributes it equally. The four air passages are spray...

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PUM

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Abstract

The present invention relates to burning equipment technology, and is especially one kind of gas burner for heating billet in very low burning loss. The burner has one mounting plate, burner blocks before the mounting plate, one burner shell following mounting plate, and one gas passage and one air passage. All the burner blocks have their corners cut off, so that the air passage may be communicated to the hearth through the holes the burner blocks form. During operation, the high speed airflow forms negative pressure and great amount of fume is sucked into air to reduce oxygen concentration, so as to realize stable burning and reduce burning loss of heated billet. The burner has completely separated air and gas, simple structure, long service life and well organized gas flow inside the hearth, and is suitable for burning various kinds of gas fuel with high heat value.

Description

Technical field: [0001] The invention belongs to the technical field of combustion devices in industrial furnaces, and relates to a burner capable of realizing ultra-low oxidation burning loss in the heating process of billets, and is suitable for gas fuels with high calorific value. Background technique: [0002] During the high-temperature heating process of the steel billet, the surface metal is prone to oxidation reaction with oxidizing gases such as oxygen in the furnace gas, resulting in oxidation and burning of the billet. Oxidation and burning of the billet causes a large amount of metal loss, a reduction in the yield, and frequent shutdowns. At present, domestically developed burners generally delay the mixing speed of air and gas by secondary supply of fuel, or by selecting a suitable angle between the gas and air nozzles, so as to form low-oxygen combustion to reduce the oxidation loss of billets. However, these methods are less effective and have limited potenti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/22F23D14/58
Inventor 夏德宏郑克明薛根山张世强敖雯青
Owner UNIV OF SCI & TECH BEIJING
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