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Lag-s100 Ladle Slag Detection System Eddy Current
Posted at: Offers to Sell and Export | Posted on: Tuesday 6 September 2022 3:47 am | Poster last visit: Friday 21 July 2023 |
Product Category: Main
» Industrial Production and Manufacturing Services
» Machinery and transport equipment manufacture
» Manufacture of machinery
» Metallurgical machinery or equipment manufacture services
» Lag-s100 Ladle Slag Detection System Eddy Current
Product Description:
LAG-S100 Ladle Slag Detection System (Eddy Current)
Overview
The continuous casting ladle slag detection
device is used to detect the slag content of the ladle nozzle in the steelmaking continuous casting process, so as to improve the cleanliness of the tundish molten steel and obtain the best yield of the ladle molten steel. The device adopts the principle of electromagnetic induction detection.
The meaning of slag detection
To achieve high output: In order to ensure the cleanliness of molten steel in the ladle, if we detect slag by eyes, we often close the ladle prematurely, so that it will reduce the yield of molten steel. However, if we use slag detection system, we can detect slag accurately and timely, so that the amount of residual steel is controlled at 1%-2% to achieve high output.
Improve the cleanliness of molten steel: The steelmaking slag gets into the tundish is the main reason that affects the cleanliness of finished steel. The use of the slag detection system can reduce the amount of steelmaking slag carried into the tundish to a very small amount, and can also reduce the defects on the slab surface at least 80%.
Avoid blockage of the nozzle: The steelmaking slag gets into the tundish is also the main reason for the blockage of the nozzle due to secondary oxidation. After using the slag detection system, the blockage of the nozzle can be greatly reduced.
The composition of the system
The slag detection system mainly consists of five parts: sensor, preamplifier, signal processing unit, central processing unit and platform control box.
The working principle of the sensor
The sensor adopts the principle of electromagnetic induction for signal detection, and its typical structure is two concentric coils. When the primary coil is supplied with an intermediate frequency excitation current, due to the action of the magnetic field, an eddy current is generated in the steel flow, and the direction of the magnetic field is opposite to the direction of the magnetic field generated by the coil. Because the conductivity of slag is much lower than that of molten steel at high temperature (about 1/1000), the eddy currents generated in slag are much smaller than those generated in molten steel. In the process of pouring steel, all the molten steel flows out at the beginning of pouring. At the later stage of pouring, there will be steelmaking slag mixing out, which reduces the conductivity of the melt and enhances the electromagnetic field. This signal is measured by the secondary coil.
The principle of sensor construction
The primary coil and the secondary coil are isolated by high temperature resistant materials, and the coils are encapsulated in a flat ring made of special steel as a whole. Then two pairs of signal lines are drawn from the two-pole coil using a unique technical method, and sent to the secondary part.
The installation of the sensor
The sensor is installed in the ladle reference plate, coaxial with the ladle nozzle, and acts as a guide part for the ladle nozzle casing tube at the same time.
The technical Features
The ladle slag’s coil made of imported materials and installed at the bottom of the ladle as a guide component for the ladle nozzle can work normally in an environment of 900 °C for a long time, achieving no burning, no damage and good weak slag signal detection characteristics . The average service life of the sensor reaches more than 800 furnaces.
The signal connector of the ladle slag coil can meet the reliable connection of the microvolt level (1uV=10-6V) slag signal under the conditions of high temperature, high impedance and strong oxidation, and realize the repeated use of long-term zero impedance.
After the ladle slag coil works for a long time in a high temperature environment, changes in distributed parameter characteristics such as impedance cause signal drift. The system can automatically identify and compensate, which ensures the accuracy of system signal processing and alarming.
The function is complete, which can actually reflect various information of molten steel casting. It has various functions such as curve storage, status display, alarm display, output control, and information printing, etc., which can effectively meet the requirements of the production process.
The technical indexes
Sampling time: <10ms
System response time: <0.1s
Zero point average volatility: <4%
System detection value accuracy: <5% (duty ratio)
Slag volume alarm setting value: user-defined (recommended to use 20%)
Average sensor life: >800 furnaces
The working condition
Sensor use ambient temperature: <900℃
Operating temperature of secondary instrument: <40℃
Storage and transportation temperature of secondary instrument: -20℃-+70℃
The relative temperature used by the secondary instrument: at 25°C, the maximum is 95%
Company Contact:
Contact Name: Floria Liang
Company Name: Wuhan Centerrise M&c Engineering Co., Ltd.
Email:
Tel: 13995588597
Fax:
Street Address: Building 4, Hengxin
Industrial Park, No. 8 Xinhua
Avenue, Huangpi District
Wuhan, Hubei 432200
China
Member name: WuhanCenterRise
Country:
China
Member Since: 06 September 2022
Total Leads: 25 WuhanCenterRise Import Export Business Leads
Business focus: Mold Breakout Prediction System, Ladle Slag Detection System, Mold Expert System, Continuous Casting Billet Detection System, Roll Gap Measuring Instr
Chat:
Verify: Safe Import Export Tips
Overview
The continuous casting ladle slag detection
device is used to detect the slag content of the ladle nozzle in the steelmaking continuous casting process, so as to improve the cleanliness of the tundish molten steel and obtain the best yield of the ladle molten steel. The device adopts the principle of electromagnetic induction detection.
The meaning of slag detection
To achieve high output: In order to ensure the cleanliness of molten steel in the ladle, if we detect slag by eyes, we often close the ladle prematurely, so that it will reduce the yield of molten steel. However, if we use slag detection system, we can detect slag accurately and timely, so that the amount of residual steel is controlled at 1%-2% to achieve high output.
Improve the cleanliness of molten steel: The steelmaking slag gets into the tundish is the main reason that affects the cleanliness of finished steel. The use of the slag detection system can reduce the amount of steelmaking slag carried into the tundish to a very small amount, and can also reduce the defects on the slab surface at least 80%.
Avoid blockage of the nozzle: The steelmaking slag gets into the tundish is also the main reason for the blockage of the nozzle due to secondary oxidation. After using the slag detection system, the blockage of the nozzle can be greatly reduced.
The composition of the system
The slag detection system mainly consists of five parts: sensor, preamplifier, signal processing unit, central processing unit and platform control box.
The working principle of the sensor
The sensor adopts the principle of electromagnetic induction for signal detection, and its typical structure is two concentric coils. When the primary coil is supplied with an intermediate frequency excitation current, due to the action of the magnetic field, an eddy current is generated in the steel flow, and the direction of the magnetic field is opposite to the direction of the magnetic field generated by the coil. Because the conductivity of slag is much lower than that of molten steel at high temperature (about 1/1000), the eddy currents generated in slag are much smaller than those generated in molten steel. In the process of pouring steel, all the molten steel flows out at the beginning of pouring. At the later stage of pouring, there will be steelmaking slag mixing out, which reduces the conductivity of the melt and enhances the electromagnetic field. This signal is measured by the secondary coil.
The principle of sensor construction
The primary coil and the secondary coil are isolated by high temperature resistant materials, and the coils are encapsulated in a flat ring made of special steel as a whole. Then two pairs of signal lines are drawn from the two-pole coil using a unique technical method, and sent to the secondary part.
The installation of the sensor
The sensor is installed in the ladle reference plate, coaxial with the ladle nozzle, and acts as a guide part for the ladle nozzle casing tube at the same time.
The technical Features
The ladle slag’s coil made of imported materials and installed at the bottom of the ladle as a guide component for the ladle nozzle can work normally in an environment of 900 °C for a long time, achieving no burning, no damage and good weak slag signal detection characteristics . The average service life of the sensor reaches more than 800 furnaces.
The signal connector of the ladle slag coil can meet the reliable connection of the microvolt level (1uV=10-6V) slag signal under the conditions of high temperature, high impedance and strong oxidation, and realize the repeated use of long-term zero impedance.
After the ladle slag coil works for a long time in a high temperature environment, changes in distributed parameter characteristics such as impedance cause signal drift. The system can automatically identify and compensate, which ensures the accuracy of system signal processing and alarming.
The function is complete, which can actually reflect various information of molten steel casting. It has various functions such as curve storage, status display, alarm display, output control, and information printing, etc., which can effectively meet the requirements of the production process.
The technical indexes
Sampling time: <10ms
System response time: <0.1s
Zero point average volatility: <4%
System detection value accuracy: <5% (duty ratio)
Slag volume alarm setting value: user-defined (recommended to use 20%)
Average sensor life: >800 furnaces
The working condition
Sensor use ambient temperature: <900℃
Operating temperature of secondary instrument: <40℃
Storage and transportation temperature of secondary instrument: -20℃-+70℃
The relative temperature used by the secondary instrument: at 25°C, the maximum is 95%
Company Contact:
Contact Name: Floria Liang
Company Name: Wuhan Centerrise M&c Engineering Co., Ltd.
Email:
Tel: 13995588597
Fax:
Street Address: Building 4, Hengxin
Industrial Park, No. 8 Xinhua
Avenue, Huangpi District
Wuhan, Hubei 432200
China
Member name: WuhanCenterRise
Country:
ChinaMember Since: 06 September 2022
Total Leads: 25 WuhanCenterRise Import Export Business Leads
Business focus: Mold Breakout Prediction System, Ladle Slag Detection System, Mold Expert System, Continuous Casting Billet Detection System, Roll Gap Measuring Instr
Chat:
Verify: Safe Import Export Tips
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