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Ladle Refining Furnace

Ladle Refining Furnace

China Ladle Refining Furnace, Find details about China Lf Furnace, Arc Furnace from Ladle Refining Furnace - Shanghai Electric Heavy Machinery Co., Ltd.

Description

Basic Info
  • Model NO.: LF
  • Place Style: Vertical
  • Type: Crucible Melting Furnace
  • Fuel: Electric Heating
  • Media: Organic Heat Transfer Material
  • Pressure: Low Pressure
  • Transport Package: Plywood and Steel Frame
  • Origin: China
  • Certification: CE, ISO
  • Range of Applications: Industrial
  • Usage: Sand Casting
  • Manufacturing Level: E
  • Burning Style: Electric
  • Trademark: semc
  • Specification: 60ton
  • HS Code: 8454201090
Product Description
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60ton LF Specification
         
  1.  
LF   Block of LF furnace   1  
  1.  
To deal with every steel water heater t 60 70 max
  1.  
LFLF furnace transformer rated capacity MVA 1.2 20% overload
  1.  
Primary Voltage KV 35  
  1.  
Secondary Voltage V 270-250-170 6 No-loading adjust voltage 6 grade .
  1.  
Secondary Current A 27700  
  1.  
Heating rate ºC/min :4.0 Max:6.0
  1.  
Electrode diameter mm F400 UHP
  1.  
Average refining cycle min 35  
  1.  
Electrode moving distance mm 2500  
  1.  
Electrode moving speed M/min 3--4  
  1.  
Refining ladle car load T 150  
  1.  
Refining ladle car speed M/min 12 ()
 (Siemens)
  1.  
Furnace hearth diameter mm Ф2500 (60t)
60ton molten steel surface
  1.  
Ladle upper diameter mm Ф3000  
  1.  
Ladle height mm 3700  
  1.  
Free space height mm 450 (60t)60ton molten steel surface
  1.  
Cooling water inlet temperature ºC ≤34  
  1.  
Temperature Rise ºC ≤15  
  1.  
Cooling water flow M3/h 200  
  1.  
Water pressure MPa ≥0.35  
  1.  
Power Supply V 35000 High voltage
380-220 Low voltage
Frequency Hz 50  
  1.  
Argon
()
 
Mpa ≥0.8  
L/min 300 Counsumption
% 99.99 Pure rate
  1.  
Compressed air Mpa ≥0.4 / No water no oil
 
 
  1. 60LF
60ton consumption:
              
1 Smelting time min/ ≤35  
2 Electrode consumption

Kg/t

≤0.3  
3 Power consumption Kwh/t ≤50  
4 Heating rate ºC/min :4.0 Max:6.0
5 The life of Water-cooled furnace cover   ≥5000  
8 Ladle campaign life   ≥55  
 
 
  1. 60LF:
60Ton LF scope list
                        
  1.  
Refining furnace transformer   1 12MVA/35KV  
  1.  
Oil and water cooler   1    
  1.  
Energy-efficient water-cooled Busbar   1    
  1.  
Copper composite electrode arm   1    
  1.  
Water-cooled cable   1    
  1.  
Electrode column hoisting mechanism   1    
  1.  
Bridge   1    
  1.  
Tubular water-cooled heat pack cover   1    
  1.  
Package hoisting mechanism   1    
  1.  
60T 60T Refining Ladle   2    
  1.  
150T 150T Refining Ladle car   2    
  1.  
Car-dragging line agencies   1    
  1.  
Hydraulic System   1    
  1.  
Water cooling system   1    
  1.  
Argon convergence
distribution systems
  1    
  1.  
High-voltage supply system   1    
  1.  
Low-voltage automatic control system   1    
  1.  
Intelligent electrode regulator   1    
  1.  
, Power and control cables, tray   1    
  1.  
PC and configuration software   1    
  1.  
Alloy feeding system   1    
  1.  
    1    
  1.  
Wire feeding machine   2    

LF-20t Ladle refining furnace main technical parameters, complete set range and quotation

1.1 Applications
LF-series ladle refining furnace is used for refining of the molten metal in conjunction with the primary melting furnace, such as arc furnace, converter or induction furnace. It possesses the various metallurgical functions of arc heating, argon blow stirring, temperature measuring and sampling and alloying, etc. It is a critical secondary steelmaking facility for high-quality carbon steel, alloy steel, bearing steel, tool steel and stainless steel, and so it could meet the requirements of continuous casting, rolling and ingot production.

1.2 This ladle refining furnace is applicable to the following operating conditions:
1.2.1 Altitude shall not 2, 000m;
1.2.2 Ambient temperature: 0C ~ 40C
1.2.3 Relative humidity shall not exceed 90% (25C);
1.2.4 Free of conductive dust, explosive gas and corrosive gas around the furnace;
1.2.5 No evident vibration or bumps;

1.3 Main technical parameters
No. Description Unite Parameter
1 Ladle Rated capacity t 20
Furnace bath diameter mm φ 1470
Height of free space mm 500
2 Ladle car Travel speed m/min 2-20
Driving type machinery
3 Electrode lifting device Diameter of electrode mm Φ 250
Diameter of electrode distribution circle mm Φ 460
Max, electrode travel mm 1800
Electrode up and down speed m/min 4/3
Rise in temperature speed of melting steel C/min ≥ 3.5
4 Furnace cover Furnace cover lifting height mm 300
5 Hydraulic system Working pressure MPa 12
Working media Water-glycol
6 High current system Impedance mΩ ≤ 2...5
3-phase out-of-balance coefficient % ≤ 5
7 Argon Working pressure MPa 0.2~0.8
Amount NL/min 20~150
8 Cooling water system Working pressure MPa 0.3
Inlet water temperature C ≤ 35
Backwater temperature C ≤ 55
Amount of used water m3/h 120
9 Transformer Rater capacity KVA 3600
Primary voltage kV 35
Secondary voltage V 200-135
Secondary current A 10393
Cooling type OFWF
11 Power supply system High voltage kV 35
Low voltage V AC380
AC220
DC24
2LF-20t Ladle refining furnace quotation
No. Description QTY(set)
1 Ladle car 1
2 Ladle(without hanger, sliding gate) 1
3 Heating bridge frame and guide device 1
4 Water cooling cover(without lining) 1
5 Electrode lifting device(include conductive arm) 1
6 High current line system(include water cooling cable) 1
7 Cooling water system 1
8 Furnace cover lifting device 1
9 Argon system 1
10 Hydraulic system 1
11 High voltage switch cabinet(35KV) 1
12 PLC automation control system and low voltage control cabinet 1
13 Transformer 3600KVA/35KV 1
Total: FOB Shanghai

3. Self-provide parts by customer
3.1 Electrode and its connector;
3.2 Ladle hanger and sliding gate;
3.3 Refractory material and making lining;
3.4 Hydraulic system working media (water-glycol)watercompressed air and argon.
3.5 Civil engineering, and the track of ladle carpre-lay unit and screw of equipment's foundation;
3.6 The connecting pipes and lines for hydraulic oilcooling waterargon and electric;
3.7 To import high voltage power supply to the input terminal of high voltage switch cabinet and furnace transformer by cable or copper plate, to buylay and test the connecting cable (copper plate), it will be borne by the buyer.
3.8 To import low voltage power supply to the input terminal of low voltage control cabinet, and ensure that its phase rotation and ground protection are correct, as well as the connecting lines that between the control cabinets and from the output terminal of control cabinet to the connection point of the equipment, it will be borne by the buyer.

4. Installing and debugging