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Step ejection method

A step and billet technology, applied in the direction of metal rolling, length control, etc., to achieve the effect of long-distance automatic measurement and accurate measurement

Pending Publication Date: 2022-05-06
LIUZHOU IRON & STEEL CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

Existing technologies currently do not have a suitable solution

Method used

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  • Step ejection method

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specific Embodiment

[0049] Such as figure 1 As shown, in this embodiment, a 4-machine 4-strand continuous casting machine is used to connect with a roller table of a bar rolling production line, and the rolling production capacity is greater than that of the continuous casting machine.

[0050] 1. The billet continuous casting machine uses the continuous casting billet infrared automatic sizing cutting system of Beijing COSCO Technology Co., Ltd. to measure the billet length. After the continuous casting machine starts production, the billet length is measured and sent to the control computer.

[0051] 2. The billet continuous casting machine uses the RAMON stopper numerical control system of Hunan Ramon Technology Co., Ltd., and the stopper controls the casting speed to realize stable and accurate control of the casting speed of each flow of the billet continuous casting machine.

[0052] 3. Production of the set slab length L 设 = 8m, after the computer receives the slab length, the flow with t...

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Abstract

The invention provides a stepped ejection method which comprises the following steps: realizing online real-time measurement of the length of a multi-strand casting blank by utilizing an infrared imaging technology to obtain online real-time measurement data of the length of the multi-strand casting blank; the computer measures data on line in real time according to the length of the multi-stream casting blank, and the pulling speed of each stream of the continuous casting machine is controlled; wherein the pulling speed of each flow of the continuous casting machine is controlled according to the relation between the production capacity of the rolling mill and the production capacity of the continuous casting machine. According to the method, manual intervention is not needed, the equal time interval of each flow of feeding into a casting machine during stepped ejection can be conveniently and quickly realized, and heating-free direct rolling is realized.

Description

technical field [0001] The invention relates to the field of iron and steel production and manufacturing, in particular to a method for stepwise blanking. Background technique [0002] Steel production requires a lot of energy, including electric energy, chemical heat, etc. With the intensification of market competition and the improvement of environmental protection requirements, it is necessary to control the energy flow in steel production, make good use of the abundant energy in steel production, and reduce the energy per ton of steel. Energy consumption has become an urgent problem in steel production. In the conventional production process from billet to steel, after the billet is cooled, it is heated by a heating furnace to make its temperature meet the requirements of steel rolling, during which a large amount of heat energy is wasted. With the increase of casting speed in continuous casting production and the acceleration of slab running speed, the temperature of s...

Claims

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Application Information

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IPC IPC(8): B21B1/46B21B37/70B22D11/16
CPCB21B1/466B21B37/70B22D11/16B22D11/163Y02P90/02
Inventor 钱学海陈学良金闯杨华何维周从锐李西德潘刚
Owner LIUZHOU IRON & STEEL CO LTD
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