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Efficient molten iron pretreatment automatic slagging-off method and system

A technology of molten iron pretreatment and molten iron slag, which is applied in image data processing, energy efficiency improvement, steel manufacturing process, etc., can solve the problems that do not involve slag removal efficiency, shorten the slag removal time, increase production capacity, and increase the number of furnaces Effect

Active Publication Date: 2020-12-01
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In the above-mentioned prior art, only the equipment and method for automatic slag removal are disclosed, but there is no method for improving the slag removal efficiency. In the production process, the slag removal efficiency is an important production index, and the slag removal efficiency can be obtained by Slagging time is measured

Method used

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  • Efficient molten iron pretreatment automatic slagging-off method and system
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  • Efficient molten iron pretreatment automatic slagging-off method and system

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Embodiment Construction

[0054] The high-efficiency molten iron pretreatment automatic slagging method and system of the present invention will be further described according to the specific embodiments of the present invention and the accompanying drawings, but the description does not constitute an improper limitation of the present invention.

[0055] figure 1 It is a structural schematic diagram of a slagging device in an embodiment of the efficient automatic slagging method for molten iron pretreatment according to the present invention.

[0056] Such as figure 1 As shown, after the ladle 1 is lifted to the seat frame of the tilting trolley 2 by driving, the slag removal starts. When removing slag, first tilt the trolley 2 so that the ladle 1 is tilted from the vertical position to the slag removing position at a certain angle to the ground. The tilting angle can be measured by adding an inclinometer or by installing an encoder on the rotating shaft of the tilting trolley 2 .

[0057] In order...

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Abstract

The invention discloses an efficient molten iron pretreatment automatic slagging-off method which comprises the following steps: acquiring an image of a ladle opening area, and preprocessing the image; recognizing the molten iron slag in the image to determine the position of the molten iron slag in the image and the total area proportion of the molten iron slag in the image; based on the positionof the molten iron slag in the image, the optimal slagging-off path is found, and the optimal slagging-off path is the path with the minimum ratio of the slagging-off time to the slagging-off amount;in the automatic slagging-off process, the slagging-off head is controlled to carry out slagging-off according to the optimal slagging-off path; and when the starting condition is met, the air blowing and slag removing device is started to gather the dispersed molten iron slag together so as to facilitate efficient slag removing, and the starting condition is that the total area proportion slag%of the molten iron slag in the image is smaller than a set air blowing and slag removing starting threshold value. In addition, the invention further discloses an efficient molten iron pretreatment automatic slagging-off system.

Description

technical field [0001] The invention relates to a method and system for pretreatment of molten iron, in particular to a method and system for removing slag during pretreatment of molten iron. Background technique [0002] With the demand for high-quality steel products in the metallurgical industry, the molten iron needs to be pretreated before entering the converter for steelmaking. In the early stage of this process, the blast furnace slag should be removed, and then the molten iron should be sprayed or stirred to make the desulfurizer fully contact with the molten iron, so that desulfurization, dephosphorization and desiliconization can be performed with maximum efficiency. Because the product after the reaction is slag, and its density is lighter than molten iron, it floats on the surface of molten iron. Therefore, the desulfurized slag floating on the surface of molten iron should be removed in the later stage of the process. The requirements for the amount of residue ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/62C21C7/00
CPCG06T7/0004G06T7/62C21C7/0087G06T2207/10004G06T2207/30108C21C2300/06G06T7/00C21C7/00Y02P10/25Y02P10/20
Inventor 于艳张宇军孙兴洪程建辉付小卫
Owner BAOSHAN IRON & STEEL CO LTD
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