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Heating device for improving heating quality of steel billets and using method thereof

A heating equipment and billet heating technology, applied in the field of steel rolling heating in the iron and steel industry, can solve the problems of decreased technical performance, increased maintenance times, reduced energy saving effect, etc., and achieve the effects of optimizing fuel consumption, reducing burning loss, and reducing overburning

Active Publication Date: 2011-11-16
SHOUGANG CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, problems such as furnace temperature fluctuations and furnace pressure fluctuations caused by the reversing of the regenerative burners in the regenerative heating furnace continue to appear, and the decline in technical performance in the later period of use causes an increase in the number of maintenances, resulting in a reduction in its energy-saving effect

Method used

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  • Heating device for improving heating quality of steel billets and using method thereof
  • Heating device for improving heating quality of steel billets and using method thereof
  • Heating device for improving heating quality of steel billets and using method thereof

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Embodiment Construction

[0065] In the present invention, one pair of flat flame burners and three pairs of regenerative burners are respectively installed in the soaking section and the heating section, and three pairs of regenerative burners on each side form a regenerative burner group. The valve controls a regenerative burner group. The initial parameters of this implementation case are shown in Table 1.

[0066] Table 1 Initial parameters of this implementation case

[0067]

[0068]

[0069] Such as figure 1 and 6As shown, in the soaking section of the heating furnace 22, taking a reversing cycle, the side A of the heat storage system burns and the side B exhausts smoke as an example. The valve 2 enters the combustion air main pipe 3 of the heat storage system and is divided into two routes, each of which is divided into upper and lower streams, wherein the upper stream of combustion air passes through the combustion air branch pipe 6 on the A side of the heat storage system, and passes ...

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Abstract

The invention relates to a heating device for improving heating quality of steel billets and a using method thereof. The heating device comprises a heating furnace, a heat storage system blower, a flat flame system blower, a combustion-supporting air pipeline, a gas pipeline, a heat storage system draught fan, an air heat exchanger, a gas heat pipe exchanger, a smoke exhaust pipeline and a chimney. 2-4 ignition burners are arranged at a preheating section of a heating furnace, and 12-30 pairs of heat storage type burners and 4-12 flat flame burners are respectively arranged at a heating section and a soaking zone. The using method comprises the following steps of reasonable distribution of combustion-supporting air and gas flow rate of the heat storage type burners and the flat flame burners, sectional configuration of furnace temperature and heating time, preheating of combustion-supporting air and gas temperature through a high-temperature smoke gas and furnace tail gas in grades, alternative furnace feeding of cold and heat steel billets, intermittent movement of the steel billets, and vaporization cooling of the steel billets. The flow field in the furnace is modified through the system, the optimal configuration of flow rates of air and gas in the burner is realized through reasonable arrangement of gas and air pipeline systems, and the waste heat of high-temperature smoke gas of the heating furnace is gradiently utilized, thus the in-furnace time is shortened, the uniformity of heating the steel billets is improved, and the high-efficiency heating of the steel billets is realized.

Description

technical field [0001] The invention belongs to the technical field of steel rolling heating in the iron and steel industry, and in particular relates to a heating device and a use method for improving the heating quality of steel billets, which are used when a steel rolling heating furnace improves the flow field in the furnace to improve the heating quality of steel billets. Background technique [0002] The heating furnace is the main energy consumption equipment for rolling steel. Its function is to heat the steel billet and provide the billet with a suitable heating temperature for the rolling mill. Heating furnaces can be divided into wire, plate, and profile heating furnaces according to their technological uses; they can be divided into gas furnaces, oil furnaces, coal furnaces, electric furnaces, etc. according to heat sources; they can be divided into chamber type, slotted type, trolley type, Well type, walking type, vibrating bottom type, continuous type, etc., ar...

Claims

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Application Information

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IPC IPC(8): C21D9/70
Inventor 陈冠军杨小龙
Owner SHOUGANG CORPORATION
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