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Heating furnace heating method and furnace heating system

A heating method and heating system technology, applied in the direction of lighting and heating equipment, furnace, furnace type, etc., can solve the problem that the billet temperature cannot meet the requirements, and achieve the effect of strong heating capacity, uniform temperature and reasonable buffer time

Active Publication Date: 2019-11-05
BAOTOU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of the upstream and downstream processes, the temperature of the billet entering the furnace will fluctuate up and down. After the billet is accelerated at a fixed acceleration point, the temperature of the billet out of the furnace cannot meet the requirements.

Method used

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  • Heating furnace heating method and furnace heating system

Examples

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Effect test

Embodiment 1

[0018] The furnace heating method according to one embodiment of the present invention is used in a compact steel strip production line. The heating section of the heating furnace includes a plurality of furnace rollers. When setting the temperature, the acceleration point of the billet is located at the initial furnace roll, including: obtaining the furnace entry temperature of the billet; judging the relationship between the furnace entry temperature and the first preset temperature, and judging the relationship between the furnace exit temperature and the second preset temperature; If the furnace entry temperature is lower than the first preset temperature, then according to the first difference between the first preset temperature and the furnace entry temperature, the first difference and the first multiple of 2.8, the acceleration point moves backward relative to the initial furnace roll The first multiple of furnace rollers; if the furnace entry temperature is higher tha...

Embodiment 2

[0022] Such as figure 1 As shown, the heating furnace heating system 100 according to an embodiment of the present invention is used in a compact strip steel production line. The heating section of the heating furnace includes a plurality of furnace rollers. When the furnace entry temperature is the first preset temperature and the furnace exit temperature is When it is the second preset temperature, the acceleration point of the billet is located at the initial furnace roll, including: a temperature detection unit 102, which is used to obtain the furnace entering temperature of the billet; a judging unit 104, which is used to judge the difference between the furnace entering temperature and the first preset temperature size relationship, and judge the size relationship between the furnace temperature and the second preset temperature; the mobile unit 106 is used for determining that the temperature of entering and leaving the furnace is lower than the first preset temperature,...

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Abstract

The invention provides a heating furnace heating method and system. The heating furnace heating method comprises the steps that the charging temperature of a steel billet is obtained; the relation between the charging temperature and the first preset temperature is judged, and the relation between the tapping temperature and the second preset temperature is judged; if the charging temperature is lower than the first preset temperature, an acceleration point moves backwards by at least one furnace roller relative to an initial furnace roller; if the charging temperature is higher than the firstpreset temperature, the acceleration point moves forwards by at least one furnace roller relative to the initial furnace roller; if the tapping temperature is lower than the second preset temperature, the acceleration point moves backwards by at least one furnace roller relative to the initial furnace roller; and if the tapping temperature is higher than the second preset temperature, the acceleration point moves forwards by at least one furnace roller relative to the initial furnace roller. Through the technical scheme, the temperature of the steel billet can be quickly and reasonably controlled, so that the temperature of the steel billet is more uniform, the time of buffering inside a heating furnace is effectively adjusted, and dynamic adjusting of the steel billet in the furnace is achieved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a heating furnace heating method and a heating furnace heating system. Background technique [0002] CSP (compact strip plant) means compact strip steel production line, which refers to a cutting-edge technology in the metallurgical industry today, with the advantages of compact process, less investment, and low energy consumption. The CSP process is generally: vertical curved thin billet continuous casting machine→oscillating shear→roller hearth heating furnace→high pressure water descaling machine→vertical roller mill→7-stand finishing rolling→laminar cooling→undercoiler→steel Roll transportation line → storage. [0003] CSP process roller hearth heating furnace is generally divided into heating section, soaking section and holding section. The burner form and combustion efficiency of each section are different. The heating section has a large burner and strong heating cap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B9/24F27B9/30F27B9/40F27D3/00F27D3/02
CPCF27B9/2407F27B9/30F27B9/40F27D3/00F27D3/026F27D2003/0091
Inventor 韩玉龙
Owner BAOTOU IRON & STEEL GRP