Slab heating control method and device
A technology of slab heating and control method, applied in the direction of heat treatment process control, manufacturing tools, heat treatment furnaces, etc., can solve the problems of damage to the roll equipment, affecting the rolling process, increasing the energy consumption and production cost of the heating furnace, and reducing the production cost. , reduce the effect of heating furnace
Pending Publication Date: 2021-11-16
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology
If the tapping temperature is too high, the energy consumption and production cost of the heating furnace will be increased, and the slab may be deformed in the furnace, and even the slab cannot be discharged from the furnace; if the tapping temperature is too low, it will damage the roll. The equipment is damaged, affecting the subsequent steel rolling process
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[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art belong to the protection scope of the embodiments of the present invention.
[0043] see figure 1 , figure 1 It is a flow chart of a slab heating control method provided by an embodiment of the present invention, specifically including step 11 to step 13.
[0044] Step 11, in the first roll stage, control the heating furnace to heat the first slab sequence.
[0045] Specifically, such as figure 2 Shown is a schematic structural view of a heating furnace provided by an embodiment of the present invention. The heating furnace is di...
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The invention relates to the technical field of hot rolling, in particular to a slab heating control method and device. The method comprises the steps that in the first rolling period, a heating furnace is controlled to heat a first plate blank sequence; a second plate blank sequence is controlled to enter the inlet of the heating furnace at the beginning of the second rolling period; wherein the thickness of a second plate blank in the second plate blank sequence is less than that of a first plate blank in the first plate blank sequence; when the distance from the tail of the first plate blank sequence to the inlet of the heating furnace exceeds the idle step length, the heating furnace is controlled to conduct heating in the second roller period; and burners of the heating sections corresponding to the foremost end position of the first plate blank sequence in the heating furnace are sequentially closed, and the second plate blank sequence is heated through the flue gas waste heat in the heating furnace. Mixed heating of a thin plate blank and a thick plate blank in the same heating furnace is achieved, the number of heating furnaces needed in the hot rolling process is reduced, and therefore the production cost of the hot rolling process is reduced.
Description
technical field [0001] The invention relates to the technical field of hot rolling, in particular to a slab heating control method and device. Background technique [0002] When steel enterprises produce strip steel, they need to control the heating operation of each heating section of the heating furnace according to the thickness of the slab so that the tapping temperature of the slab is within the target temperature range. If the tapping temperature is too high, the energy consumption and production cost of the heating furnace will be increased, and the slab may be deformed in the furnace, and even the slab cannot be discharged from the furnace; if the tapping temperature is too low, it will damage the roll. The equipment is damaged, affecting the subsequent steel rolling process. Therefore, when steel enterprises produce strip steel with different thickness specifications, they usually use multiple hot rolling production lines to heat slabs with different thickness spec...
Claims
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Login to View More IPC IPC(8): C21D11/00C21D9/00
CPCC21D11/00C21D9/0081
Inventor 高月赵鑫吴秀鹏杨孝鹤胡亮艾矫健高文刚张建华陈丽娟
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD