Method and device for automatically controlling argon blowing quantity for steel ladle of continuous casting machine

A machine-steel, continuous casting technology, applied in electrical program control, program control in sequence/logic controllers, and manufacturing tools, etc., can solve the problems of ladle not blowing argon, ladle temperature in molten steel, environmental temperature adjustment, etc. , to improve the purity of molten steel, improve the effect of argon blowing, and reduce the effect of slag inclusion

Active Publication Date: 2011-07-20
ANGANG STEEL CO LTD
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the continuous casting machine generally does not blow argon to large ladles during casting, and some use argon blowing at a constan

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for automatically controlling argon blowing quantity for steel ladle of continuous casting machine
  • Method and device for automatically controlling argon blowing quantity for steel ladle of continuous casting machine
  • Method and device for automatically controlling argon blowing quantity for steel ladle of continuous casting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Since the ladle temperature measurement technology is mature, the temperature of the tundish can be monitored in real time. Therefore, argon blowing of the ladle is used to adjust in real time with the weight, and the controllable adjustment is made according to the temperature of the tundish to effectively reduce the inclusion of molten steel in the ladle during the casting process. Float up to improve the purity of molten steel.

[0016] See figure 2 , Automatic control method of argon blowing in molten steel tank of continuous casting machine. This method controls the amount of argon blowing by designing the argon blowing curve so that the amount of argon gas in the ladle can be effectively adjusted with the weight of molten steel in the ladle, so that the argon blowing effect is the best.

[0017] The argon gas flow Q, the initial set value of the argon gas flow Q1, and the weight T of molten steel in the ladle are calculated according to the following formula:

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method and a device for automatically controlling argon blowing quantity for a steel ladle of a continuous casting machine. In the method, by designing an argon blowing curve, argon quantity in the steel ladle can be effectively adjusted based on weight of molten steel in the steel ladle so as to control argon blowing quantity, thus achieving the optimum argon blowing effect. The device comprises an adjusting valve, an argon pipeline, a flow detection device, a pressure detection device and a PLC (programmable logic controller) control system, wherein, the argon pipeline is equipped with the adjusting valve, the flow detection device for gas flow detection and the pressure detection device; and the adjusting valve, the flow detection device and the pressure detection device are respectively connected with the PLC control system. The method and the device have the advantages of improving purity of the molten steel and reducing slag inclusion by a large-ladle argon blowing mode, maintaining even temperature during the casting process of the molten steel in the large ladle, preventing the molten steel from being mixed into a middle ladle owing to eddy effect in the case of low level, enhancing argon blowing effect and reducing temperature loss.

Description

technical field [0001] The invention relates to an automatic control method and device for blowing argon in a molten steel tank of a continuous casting machine. Background technique [0002] In the prior art, the continuous casting machine generally does not blow argon for large ladles during casting, and some use constant flow argon blowing for argon blowing, which is not adjusted based on factors such as the weight of the molten steel tank, the temperature of the tundish, and the ambient temperature. . Since the temperature measurement technology of the tundish is now mature, the temperature of the tundish can be monitored in real time. Therefore, argon blowing of the large ladle is used for real-time adjustment according to the weight, and the controllable adjustment is made according to the temperature of the tundish to effectively reduce the temperature of the molten steel during the casting process. It is very necessary to effectively float inclusions and improve the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22D1/00B22D2/00G05B19/05
Inventor 王琳臧绍双张城贾得强
Owner ANGANG STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap