The LF ladle refining furnace is used to refine molten steel from primary furnaces through atmospheric arc heating, argon blowing and stirring, alloy feeding, temperature measurement, and sampling. It consists of a ladle and ladle car, heating device, vacuum and detection system, hydraulic and control systems, gas systems, electrical control system, and high voltage and current circuits. The LF furnace can be combined with an EBT electric furnace to achieve short processes, improve steel quality, and reduce costs. It can be customized based on a client's required capacity, working hours, power supply, raw materials, and other parameters.

1. LF Ladle Refining Furnace
The LF ladle refining furnace can be used for refining molten steel in primary
furnaces (electric arc furnaces, converters). It is important metallurgical
equipment for continuous casting and rolling. It has the functions of
atmospheric arc heating, argon blowing and stirring, alloy feeding, temperature
measurement, sampling and so on. It is excellent equipment for refining
outside the furnace.
Equipment Composition
1. Ladle and ladle car;
2. Heating device (electrode control mode: manual control or microcomputer
automatic control. Energy-saving short net and conductive cross arm are
used);
3. Vacuum and detection system;
4. Hydraulic and control valve system;
5. Argon, oxygen, compressed air and cooling water systems;
6. Electrical control system (using PLC control and CRT image analog
display);
7. High voltage power system;
8. High current circuit.
The combination of LF ladle refining furnace and EBT electric furnace can
achieve short processes, improve steel quality, reduce production costs, and
expand smelting varieties.

2. Parameters
Rated
Capac
ity(t)
Furnace
Transformer
Inner
diamete
r of ladle
upper
opening
(mm)
Graphite
electrode
diameter
(mm)
Diam
eter
of
elect
rode
distri
butio
n
circle
(mm)
Cooling
water
consumptio
n
(m2/h)
Rated
Capacity
(MVA)
Secondar
y voltage
（V）
15 2.0 185-150 2000 200 400 50
20 4.0 195-190 2200 300 560 90
25 4.5 200-120 2250 300 580 90
30 5.0 215-155 2450 300 580 120
40 6.3 220-160 2600 350 580 120
50 9.0 220-120 3000 400 700 150
60 10.0 270-170 3100 400 720 180
70 12.5 270-150 3280 400 720 180
80 15.0 270-150 3400 450 750 200
90 16.0 270-150 3500 450 750 200

3. Features
LF ladle refining furnace has many functions, such as heating and temperature
rise, fine adjustment of alloy composition, argon stirring, rapid temperature
measurement and sampling, desulfurization, impurity removal, wire feeding
and composition adjustment, so as to reasonably match the whole steelmaking
process and improve production continuity.
Customized LF Ladle Refining Furnace
We can design and manufacture the LF ladle refining furnace according to the
client’s required capacity, working hours, power supply, raw materials, and
other related parameters. It can also be matched for users who already have
the ladle refining furnace.
Custom Range
Annual capacity: 5T-50T
Diameter of cladding: 2000-4400MM
Rated transformer parameters：3-35MVA
Graphite electrode diameter：250-500MM
Service
What we can do:
Design and manufacture the LF ladle refining furnace according to the user’s
requirement, including but not limited on the capacity, power supply, rated
power, and so on. It can also be matched for clients who already ladle refining
furnaces.
Experienced technical engineers to install and debug the LF ladle refining
100 18.0 300-180 3580 450 750 280
120 20.0 300-180 3680 500 800 300

4. furnace.
Technical services and after-sale technical support.
Also can adjust the LF ladle refining furnace or develop and improve the
capacity based on the user’s existing production line with professional
engineers available for overseas installation guide and maintenance.