Bomb Type Probe for Steelmaking Production Process

Application

The bomb-type probe is a critical innovation in modern steelmaking production processes, specifically designed to address challenges in endpoint control for converters lacking auxiliary gun systems. Its primary application scenarios include:

• Endpoint Carbon-Temperature Dual Control
  Enables simultaneous real-time measurement of molten steel temperature and carbon content during the final stages of converter steelmaking, replacing traditional manual sampling methods

• Dynamic Process Optimization
  Provides instantaneous data feedback (within 4-8 seconds) to support oxygen blowing control and alloy addition calculations, particularly effective when carbon content ≤0.16%

• Converter Tapping Decision Support
  Achieves 98% measurement success rate in determining optimal steel tapping timing, significantly reducing the need for furnace tilting verification operations

• Quality Traceability
  Creates complete process records with ±0.02% carbon measurement accuracy for subsequent quality analysis and production process improvements

Feature

This advanced measurement system integrates multiple cutting-edge technologies to meet the rigorous demands of modern metallurgical production:

1. Dual-Parameter Synchronous Acquisition
   Combines B-type thermocouple temperature measurement with laser spectral analysis technology to simultaneously obtain both thermal and chemical composition data

2. Intelligent Anti-Interference Design
   Special probe structure withstands 1600-1650℃ molten steel impact while maintaining measurement stability in high-dust converter environments

3. Rapid Response Architecture
   Complete measurement cycle within 8 seconds from probe penetration to data output, matching converter operation rhythm requirements

4. Self-Checking Measurement System
   Integrated verification module automatically calibrates before each measurement to ensure ±0.02% absolute accuracy in carbon content detection

Principle

The bomb-type probe operates through an integrated electromechanical measurement mechanism:

1. Penetration Mechanism
Utilizes pneumatic launching system to deliver the probe through the converter lining into molten steel at optimal measurement depth

2. Composite Sensing Technology

• Temperature Measurement: B-type platinum-rhodium thermocouple with ceramic protection tube captures thermal data
• Carbon Analysis: Laser-induced breakdown spectroscopy (LIBS) detects characteristic spectral lines of carbon atoms

3. Data Processing Flow

1. Signal acquisition through high-speed sampling circuit (10kHz)
2. Digital filtering eliminates converter vibration noise
3. Multi-sensor data fusion algorithm compensates for environmental interference
4. Neural network model converts raw data to standardized process parameters

4. Thermal Compensation
Special phase-change materials in probe tip maintain measurement chamber stability during 4-8 second measurement window

Advantage

This technological solution brings revolutionary improvements to steelmaking operations:

• Process Efficiency
  Reduces converter cycle time by 12-15 minutes per heat through accurate endpoint control, enabling direct tapping without temperature verification

• Quality Consistency
  Maintains ±20℃ temperature deviation control from target pouring temperature across production batches

• Cost Optimization
  Decreases alloy consumption by 1.2-1.8kg/t through precise carbon content control, while probe cost is 60% lower than auxiliary gun maintenance

• Operational Safety
  Eliminates high-risk manual sampling operations near converter mouth area

• Data Utilization
  Measurement results directly interface with MES systems, supporting automatic production logging and big data analysis

Technical specifications

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