The EMLI BOF and EAF Detection System
The EMLI Slag Detection system for Basic Oxygen and Electric Arc Furnaces offers real-time monitoring to identify and minimize slag carryover. This system enhances metallurgical processes and improves steel quality. Optimal furnace performance is achieved with this innovative solution.
EMLI System Overview
The EMLI™ (Electro Magnetic Level Indication) system employs advanced technology to measure and detect liquid metal levels accurately. The system’s core components include a MANAGEMENT UNIT, a CONTROL UNIT, and a PREAMPLIFIER UNIT. A single MANAGEMENT UNIT can oversee up to eight CONTROL UNITS in setups with multiple systems.
The MANAGEMENT UNIT is responsible for system monitoring, data logging, and setup, with remote access capabilities through an Internet connection if enabled.
The CONTROL UNIT is the system’s central component, generating the transmitter signal and processing the measurement data.
The PREAMPLIFIER UNIT amplifies the measurement signal before sending it to the CONTROL UNIT.
EMLI-SIE Electric Arc Furnace Slag Detection System
The EMLI III Electric Arc Furnace (EAF) slag detection system utilizes advanced electronics and specially designed sensors to identify slag presence in the taphole area during the tapping process.
With its unique sensor design and strategic placement, the EMLI system provides a reliable and precise slag alarm before a human operator can detect it.
This enables users to optimize yield while significantly reducing slag carryover.
Principle of Operation
The EMLI EAF slag detection system employs two sensor coils on opposite sides of the furnace’s tap hole. One coil is a transmitter, while the other is a receiver.
The transmitter is energized with a controlled AC current, generating an electromagnetic field that the receiver detects.
When the taphole is empty, the receiver picks up a strong signal due to maximum signal transfer. As tapping begins and the taphole fills with steel, the signal is significantly shielded, causing the receiver to detect a minimal signal.
The slag enters the stream and fills the taphole toward the end of tapping. Since slag doesn’t block electromagnetic signals, the receiver’s signal rises again. The strength of the received signal is directly related to the amount of slag present in the taphole.
When the signal reaches a pre-set threshold, a slag alarm is triggered.
Exceptional System Advantages
The EMLI EAF Slag Detection System provides precise and reliable detection of slag onset during the tapping process in both Electric Arc Furnaces and Basic Oxygen Furnaces. The system offers several advantages to modern steelmakers:
- The innovative design and strategic placement of the EMLI sensor coils enables the system to detect slag at the earliest possible stage, providing a significant edge over competing technologies.
- The slag alarm settings can be customized based on the specific type of steel being produced.
- Sensor coils can often be positioned and installed in a way that allows external access without disrupting the furnace’s refractory lining.
Download Our Brochure for Free
[DOWNLOAD]
Achieve Superior Results
Elevate your production capabilities using our expert technology. Contact us today to explore solutions that enhance your operations for exceptional outcomes.