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Non-contact molten steel liquid level detection system and method for steelmaking

A liquid level detection, non-contact technology, applied in liquid level indicators, liquid/fluid solid measurement, measuring devices, etc., can solve the problems of poor reliability and shortened service life of sensors, so as to increase life and improve reliability , the effect of reducing production costs

Pending Publication Date: 2022-04-15
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of the strong interference of molten steel splash, high temperature, dense smoke and dense dust above the molten steel, which shorten the service life of the sensor and the real-time performance and reliability of the measured data are poor, the invention provides a non-magnetic sensor for steelmaking. Contact type molten steel liquid level detection system and method, the invention can measure the liquid level data of molten steel in the ladle without affecting the normal steelmaking process layout and production rhythm

Method used

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  • Non-contact molten steel liquid level detection system and method for steelmaking
  • Non-contact molten steel liquid level detection system and method for steelmaking
  • Non-contact molten steel liquid level detection system and method for steelmaking

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Embodiment 1

[0034] In order to overcome the strong interference of molten steel splashing above the molten steel, high temperature, dense smoke, and dense dust, which shorten the service life of the sensor and poor real-time performance and reliability of the measured data, the present invention provides such as Figure 1-3 Shown is a non-contact molten steel liquid level detection system and method for steelmaking. The present invention can measure the liquid level data of molten steel in the ladle without affecting the normal steelmaking process layout and production rhythm.

[0035] A non-contact molten steel liquid level detection system for steelmaking, including a sensor 1, a heat exchanger 2, a protective casing 3, a measurement channel 4, a Laval nozzle 5, a controller 6, a driver 9 and a ladle car 13 There are multiple sensors 1, each sensor 1 is set in the corresponding protective shell 3, the heat exchanger 2 is set in the protective shell 3, and the measurement channel 4 is set...

Embodiment 2

[0041] Based on the basis of Example 1, in this embodiment, preferably, the upper end of the Laval nozzle 5 is connected with a protective gas pipeline, and the pipeline is provided with a protective gas control valve 11, and the protective gas control valve 11 Connect with the driver 9 electrical signals.

[0042] Preferably, the lower end of the Laval nozzle 5 is provided with a protective sleeve.

[0043] In the present invention, the protective sleeve protects the Laval nozzle 5 and prolongs the service life of the Laval nozzle 5 .

[0044] In the present invention, if image 3As shown, the upper end of the Laval nozzle 5 is funnel-shaped, and the lower end is also funnel-shaped, and the inner diameter of the junction of two funnels is the smallest. The inner diameter of the uppermost end of the Laval nozzle 5 is greater than the inner diameter of the junction of the two funnels in the middle, and the lowermost inner diameter of the Laval nozzle 5 is greater than the upp...

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Abstract

The invention provides a non-contact molten steel liquid level detection system and method for steelmaking. The system comprises a sensor, a heat exchanger, a protective shell, a measuring channel, a Laval nozzle, a controller, a driver and a buggy ladle. The number of the sensors is multiple, each sensor is arranged in the corresponding protective shell, the heat exchanger is arranged in the protective shell, and the measuring channel is arranged below the corresponding protective shell. A Laval nozzle is arranged in the measuring channel, the measuring channel is arranged on a supporting structure above the buggy ladle, and the sensor, the buggy ladle and the driver are respectively in electric signal connection with the controller. According to the invention, the traditional contact type molten steel level measurement mode in the steelmaking production link is changed, the measurement process does not influence the normal production rhythm, the equipment is simplified, the reliability is improved, the equipment investment, loss and maintenance cost are reduced, and the occupied area of the equipment is reduced.

Description

technical field [0001] The invention belongs to the technical field of electromechanical integration, and in particular relates to a non-contact molten steel liquid level detection system and method for steelmaking. Background technique [0002] Under the background of my country's iron and steel industry upgrading from pursuing "quantity" to improving "quality", the data of molten steel level in the ladle has increasingly become an important parameter required in multiple links of the steelmaking process. [0003] The production process of steelmaking is complicated, and there are a large number of compactly arranged equipment and auxiliary equipment in each production link, and the space is extremely tight; the rhythm of steelmaking production is extremely tight, and many links are calculated in "minutes"; the steelmaking production environment The temperature of the molten steel in the ladle is above 1500°C, and the temperature above and around the ladle is extremely high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/292
Inventor 董波贾涛李嘉卉邓杰佟冰
Owner CHINA NAT HEAVY MACHINERY RES INSTCO