Ladle Refining Furnace (LF)

Ladle Refining Furnace (LF) Specification

Rating
20 to 150 Tons

Feature
LC Control, Automatic Operation, High Temperature Uniformity, Dust Collection System

Condition
New

Type
Electric Arc Ladle Refining Furnace

Usage
Steel Secondary Refining

Power
Up to 5500 kVA

Voltage
380V / 415V / 440V

Size
Customized as per plant capacity

Dimensions
Depends on design Typically 7m x 5m x 9m

Weight
Depending on capacity and configuration

Application
Steel Plant Metallurgical Processes

Fuel Type
Electric

Capacity
20 to 150 Tons per heat

Tap to Tap Time
45 75 minutes

Shell Material
Heavy Duty Steel Alloy

Transformer Capacity
As per design, typically 10-30 MVA

Cooling System
Water Cooled Panels and Roof

Control System
PLC Based Automated Control

Secondary Metallurgy Capability
Deoxidation, Desulphurization, Inclusion Control

Optional Add-ons
Sample Robot Arm, Alloy Feeding System, Slag Door Actuator

Stirring System
Argon Gas Stirring Equipment

Fume Extraction System
High Efficiency Dedusting Unit

Lining Material
Magnesia Carbon Brick

Electrode Lifting Mechanism
Hydraulic or Electric Motor

Lining Life
Up to 250-400 Heats

Electrode Type
Graphite Electrode (200 600 mm Diameter)

Max. Furnace Temperature
Up to 1800C

Ladle Refining Furnace (LF) Trade Information

Minimum Order Quantity
1 Set

FOB Port
Shanghai

Supply Ability
20000 Sets Per Month

Delivery Time
45 Days

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
South America, Middle East, Asia, Eastern Europe, Australia, North America, Western Europe, Central America, Africa

About Ladle Refining Furnace (LF)

Ladle Refining Furnace (LF)

Established in 2006, we are a China based company engaged in manufacturing and exporting excellent quality Ladle Refining Furnace (LF). It is a highly efficient and proven method for producing alloy steel, de-sulphurizing liquid steel and for improving the productivity from a steel plant. In this furnace, we can also perform ladle refining process which is a type of post melting treatment. Our complete range of this Ladle Refining Furnace is made in compliance with international quality standards to deliver premium quality products to our clients. Moreover, we offer these furnaces in different sizes and specifications as per requirements.

Nominal Capacity Unit: MT	Transformer Capacity Unit: KVA	Ladle Diameter Unit: MM	Electrode Diameter Unit :MM	Central Circle Unit : MM
15	3200	2110	250	450
20	4000	2200	300	560
25	4500	2350	300	580
30	5500	2550	300	650
40	6300	2750	350	650
50	9000	2950	400	700
60	10000	3150	400	700
75	12500	3250	400	750
100	16000	3550	450	750

Efficient Secondary Metallurgical Processing

This Ladle Refining Furnace is engineered for advanced steel secondary refining operations. It supports vital processes such as deoxidation, desulphurization, and inclusion control, enabled by automated PLC controls and reliable argon gas stirring. The combination of heavy-duty structural materials, precise electrode manipulation, and efficient fume extraction ensures safe, clean, and high-quality steel production in demanding plant environments.

Innovative Design and Reliability

With a robust steel alloy shell, durable magnesia carbon brick lining, and high-efficiency water-cooled panels, this LF is built for long-term performance and thermal stability. The hydraulic or electric electrode lifting system, along with optional features like sample robot arms and alloy feeding systems, offers operational flexibility and minimizes downtime, supporting consistent production cycles and extended lining life of up to 400 heats.

Customizable Configurations for Steel Producers

Manufactured to meet diverse steel plant requirements, this furnace accommodates a wide range of capacities, from 20 to 150 tons per heat. The PLC-automated control, modular add-ons, and comprehensive dust collection systems enable tailored solutions for distributors, exporters, manufacturers, suppliers, and traders seeking optimal performance, safety, and metallurgical quality.

FAQs of Ladle Refining Furnace (LF):

Q: How does the Ladle Refining Furnace (LF) improve steel quality during secondary refining?

A: The LF enhances steel quality by allowing precise control over temperature, composition, and stirring. Key processes such as deoxidation, desulphurization, and inclusion modification are achieved using argon gas stirring and magnesia carbon brick lining, resulting in cleaner and more homogeneous molten steel.

Q: What materials are used in the construction of this Ladle Refining Furnace?

A: This LF is constructed with a heavy-duty steel alloy shell, uses high-performance magnesia carbon bricks for lining, and features water-cooled panels and roof to withstand up to 1800C. Graphite electrodes ranging from 200 to 600 mm diameter are employed for efficient electric arc operation.

Q: When should the magnesia carbon brick lining be replaced?

A: The magnesia carbon brick lining is designed to last for 250 to 400 heats, depending on operating conditions. It should be replaced once signs of significant wear, spalling, or reduced thermal efficiency are detected to maintain optimal furnace performance and safety.

Q: Where is this LF typically installed and used?

A: This Ladle Refining Furnace is commonly installed in steel plants and metallurgical facilities, particularly within the secondary refining section. It is suitable for distributors, exporters, manufacturers, suppliers, and traders handling steel production and metallurgical processes.

Q: What is the standard process flow when using an LF for secondary metallurgy?

A: After primary steelmaking, molten steel is transferred into the LF, where it undergoes temperature adjustment, chemical refining, and stirring. Key steps involve argon gas injection, alloy addition, slag formation and removal, and quality samplingfacilitated by optional features like sample robot arms and alloy feeding systems.

Q: How does the LFs automated control system optimize operation?

A: The PLC-based automated control ensures precision management of furnace parameters such as temperature, stirring, and electrode movement. This not only streamlines operation and safety but also guarantees consistent steel quality while reducing energy consumption and human error.

Q: What are the main benefits of choosing this LF model for steel refining applications?

A: This LF offers high temperature uniformity, efficient dust collection, low energy consumption, and flexible configuration options. Users benefit from increased productivity, superior steel quality, extended lining life, and enhanced workplace safety through automated operations and advanced environmental controls.

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