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Automatic ladle slag outflow detection system and method thereof

An automatic detection and steel slag technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze fluids, etc., can solve the problem of affecting the judgment of the slag under the large ladle, such as the control of sliding nozzles, and achieve the effect of easy playback analysis and avoiding signal overshoot.

Inactive Publication Date: 2012-07-04
BEIJING ZHONGYUANTONG SCI & TECH
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Problems solved by technology

[0014] To sum up, it can be seen that the existing methods for automatic detection of ladle slag have insurmountable problems in practical application, which will inevitably affect the judgment of ladle slag and the control of the sliding nozzle

Method used

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  • Automatic ladle slag outflow detection system and method thereof
  • Automatic ladle slag outflow detection system and method thereof
  • Automatic ladle slag outflow detection system and method thereof

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Embodiment Construction

[0052] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0053] like figure 1 Shown is the structure of an embodiment of the automatic detection system for slag slag provided by the present invention, which includes an audio sensor, an audio signal preprocessing device and a main control device connected in sequence, wherein:

[0054] The audio sensor is used to collect the corresponding sound signal when the molten steel and steel slag flow out of the nozzle, and convert it into a corresponding analog waveform and output it to the audio signal preprocessing device;

[0055] The above-mentioned audio sensor can be installed inside or outside the end of the manipulator away from the nozzle, such as figure 1 As shown, the...

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Abstract

The invention discloses an automatic ladle slag outflow detection system and a method thereof. The automatic ladle slag outflow detection system comprises an audio frequency sensor, an audio frequency signal preprocessing device and a main control device. The audio frequency sensor is used for acquiring corresponding sound signals generated when molten steel and steel slag flow out of a gate and converting the sound signals into corresponding analog waveform and then outputting the analog waveform to the audio frequency signal preprocessing device. The audio frequency signal preprocessing device is used for converting the analog waveform corresponding to the molten steel and steel slag sound signals into corresponding digital signals and then outputting the digital signals to the main control device. The main control device is used for analyzing and recognizing characteristic sound spectrum of steel slag according to the digital signals corresponding to the molten steel and steel slag sound signals so as to judge whether molten steel flows into tundish contains steel slag or not. The automatic ladle slag detection system has the advantages that the time for ladle slag outflow can be determined in time accurately, and the process of pouring the tundish by molten steel of the ladle through the gate is realized under accurate control.

Description

technical field [0001] The invention relates to an industrial ladle slag detection technology, in particular to an automatic detection system and method for ladle slag. Background technique [0002] In order to prevent the secondary oxidation of the molten steel during pouring from the ladle to the tundish, a long nozzle is generally used to protect the steel flow. [0003] In order to control the slag content in the tundish and reduce the amount of slag in it, many steel mills use the following methods to detect the slag in the ladle when the pouring of the ladle is nearing the end. [0004] One is to remove the shroud in advance, and judge whether slag has been discharged by observing with the naked eye according to the color of molten steel and steel slag. [0005] Although this method is simple, it will have many adverse effects. Moreover, due to the early removal of the shroud, the molten steel at the end of ladle casting will be re-oxidized. [0006] Since the molte...

Claims

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Application Information

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IPC IPC(8): B22D11/16G01N29/036
Inventor 桑建伟代东明丛壮
Owner BEIJING ZHONGYUANTONG SCI & TECH
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