Method for stabilizing tapping temperature based on ladle automatic positioning

A technology of tapping temperature and automatic positioning, applied in the field of metallurgy, can solve the problems of insufficient tapping temperature, shorten refining time, etc., and achieve the effects of reducing heat radiation, improving service life and ensuring stability.

Active Publication Date: 2018-03-06
上海宝衢自动化系统工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application reduces the cost of temperature estimation and measurement time in the refining process of LF furnace, shortens the refining time, and improves the refining rate of LF furnace, but it does not help much to stabilize the tapping temperature of molten steel, and further optimization is still needed

Method used

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  • Method for stabilizing tapping temperature based on ladle automatic positioning
  • Method for stabilizing tapping temperature based on ladle automatic positioning
  • Method for stabilizing tapping temperature based on ladle automatic positioning

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Such as Figure 1 ~ Figure 3 As shown, a method for stabilizing the tapping temperature based on the automatic positioning of the ladle in this embodiment uses radio frequency identification tags for positioning, and proceeds according to the following steps:

[0054] Step 1. Install the electronic tag 2 on the ladle 1 and the driving track, and run continuously on the various stations of the ladle 1 (such as tapping position, argon blowing position, RH and LF refining position, casting position, etc.) Each segment is equipped with a card reader; wherein the steel ladle 1 is provided with at least 4 electronic tags 2, and a plurality of electronic tags 2 are evenly spaced and symmetrically arranged on the surface of the steel ladle 1, specifically, as figure 1 with figure 2 As shown, four electronic tags 2 are arranged on the upper and outer surface of the steel ladle 1, and the four electronic tags 2 are symmetrically arranged on the outer wall of the steel ladle 1 i...

Embodiment 2

[0086] A method of stabilizing the tapping temperature based on the automatic positioning of the ladle in this embodiment is basically the same as in Embodiment 1, except that the height of the electronic tag 2 in this embodiment is located at 1 / 3 of the height of the ladle 1; Card readers are installed at evenly spaced intervals of 12m on the continuous running span of steel ladle 1.

[0087] In this embodiment, the electronic tag 2 is a high-temperature-resistant passive electronic tag, which is packaged with a high-temperature-resistant material. The high-temperature-resistant material includes the following components in mass percentage: 4.0% ZrO, 5% SiO 2 , 85% CaO, 5% MnO, and the rest are unavoidable impurities.

Embodiment 3

[0089] A method of stabilizing the tapping temperature based on the automatic positioning of the ladle in this embodiment is basically the same as that in Embodiment 1, except that the span section of the continuous operation of the ladle 1 on the crane 3 is equipped with a card reader every 11m evenly spaced .

[0090] In this embodiment, the electronic tag 2 is a high-temperature-resistant passive electronic tag, which is packaged with a high-temperature-resistant material. The high-temperature-resistant material includes the following components in mass percentage: 2.0% ZrO, 15% SiO 2 , 80% CaO, 2% MnO, and the rest are unavoidable impurities.

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Abstract

The present invention discloses a method for stabilizing a tapping temperature based on ladle automatic positioning, belonging to the metallurgy field. The method comprises the steps that: based on the radio frequency identification technology, card readers are installed at positions where a ladle is operated, and a plurality of electronic tags are installed at front, back, left and right outer surfaces of the ladle; the card readers perform identification of the ladle when the position of the ladle is changed; a homemade algorithm is employed to calculate the temperature of the ladle based oninformation such as the position of the ladle and the initial temperature of the ladle; temperature loss of liquid steel is obtained when tapping according to different ladle temperatures; the liquidsteel temperature of a converter smelting terminal point is dynamically regulated to balance the temperature loss; and finally, a stable tapping temperature of the liquid steel in the ladle is obtained. The method for stabilizing a tapping temperature based on ladle automatic positioning overcomes defects that it is difficult to stabilize the tapping temperature of the liquid steel and productionstability is influenced, stabilizes the tapping temperature of the liquid steel, ensures the stability of the production rhythm, obtains a stable casting temperature for follow-up continuous castingand ensures stability of the casting blank quality.

Description

technical field [0001] The invention relates to the technical field of metallurgy, and more specifically relates to a method for stabilizing tapping temperature based on ladle automatic positioning. Background technique [0002] The basic production process of the steelmaking plant is as follows: converter smelting - converter tapping - molten steel transportation - refining process - molten steel transportation - continuous casting process. Among them, the steel ladle is involved in the steelmaking process at the stage of "converter tapping". At this stage, the temperature difference between the steel ladle and the molten steel reaches more than 1,000 degrees Celsius, and there is a strong heat exchange. Therefore, the thermal state of the steel ladle has a great influence on the temperature drop of the molten steel. Affected, the tapping temperature of molten steel in the ladle is often unstable, disrupting the production rhythm and affecting product quality. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04G05D23/32
Inventor 朱正海刘在春胡盛凯韩振超王建军周俐常立忠
Owner 上海宝衢自动化系统工程有限公司
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