Heating method and system based on steel rolling heating furnace

A heating method and a technology of a heating furnace, which are applied in the field of metallurgy to achieve the effects of improving heating intensity and heating efficiency, fast and efficient heating, and reducing furnace unit consumption

Inactive Publication Date: 2015-07-01
SHOUGANG CORPORATION
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Problems solved by technology

[0003] The invention provides a heating method and system based on a steel rolling heating furnace, which can effectively combine oxygen-rich combustion, oxygen-poor combustion and intermittent combustion, and solve the problems of oxygen-rich, oxygen-poor, intermittent and intermittent combustion in the application process of energy-saving technology. C

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  • Heating method and system based on steel rolling heating furnace
  • Heating method and system based on steel rolling heating furnace
  • Heating method and system based on steel rolling heating furnace

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[0040] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation and working principle of the heating method and system based on the steel rolling heating furnace proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments Describe in detail.

[0041] see figure 1 , the heating method based on the steel rolling heating furnace provided by the embodiment of the present invention includes:

[0042] Step S110: denitrify part of the combustion-supporting gas to generate oxygen-enriched combustion-supporting gas;

[0043] Step S120: preheating the oxygen-enriched combustion-supporting gas;

[0044] Step S130: preheating the gas;

[0045] Step S140: Mix the preheated oxygen-enriched combustion-supporting gas and a part of the preheated gas into the soaking section of the heating furnace for oxygen-...

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Abstract

The invention relates to the field of a metallurgical technology, and discloses a heating method and a heating system based on a steel rolling heating furnace. The method comprises the steps of denitrifying a part of combustion-supporting gas to generate oxygen-enriched combustion-supporting gas; preheating the oxygen-enriched combustion-supporting gas; preheating coal gas; mixing and feeding the oxygen-enriched combustion-supporting gas and the preheated coal gas to a soaking zone of the heating furnace to carry out oxygen-enriched combustion; mixing and feeding a part of oxygen-enriched combustion-supporting gas and the preheated coal gas into a heating section of the heating furnace to carry out pulse-combustion; and preheating the oxygen-enriched combustion-supporting gas and the coal gas through furnace tail flue gas. According to the method provided by the invention, an oxygen-enriched combustion technology, a pulse combustion technology and a heat accumulating type combustion technology can be combined to realize coupling application on the oxygen-enriched combustion technology and the heat accumulating type combustion technology on the steel rolling heating furnace, the technical advantages of heat accumulating type combustion, oxygen-enriched combustion and pulse combustion can be integrated, and the heat transfer speed and heating speed in the steel rolling and heating process can be accelerated to finally realize the energy-saving and cost-reducing of the steel rolling heating furnace.

Description

technical field [0001] The invention relates to the technical field of metallurgy, and is mainly applicable to a heating method and system based on a steel rolling heating furnace. Background technique [0002] The steel rolling heating furnace is the main energy-consuming equipment of the steel rolling system, accounting for 60-70% of the energy consumption of steel rolling. Therefore, the key point of energy saving in the steel rolling process is the energy saving of the steel rolling heating furnace. With the increase of steel rolling production capacity in recent years, the number of steel rolling heating furnaces is also increasing, and the steel rolling heating furnaces are also developing in the direction of large-scale, high efficiency, and low pollution. With the advancement of steel rolling heating furnace technology, energy-saving technologies such as walking beams, regenerative combustion, vaporization cooling, energy-saving coatings, hot charging and hot deliver...

Claims

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Application Information

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IPC IPC(8): F27D17/00F27D19/00F23D14/02F23D14/60
CPCY02E20/34
Inventor 陈冠军胡帅代云红吴刚王泽举王敏
Owner SHOUGANG CORPORATION
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