Lf-70t Ladle Refining Furnace Specification

• Certification: CE, ISO, CE, ISO
• Customized: Customized
• Surface Treatment: Painted
• Fuel: Gas Coal Electric, Electric
• Range of Applications: Industrial, Industrial
• Type: Cusomized, Electric Arc Furnace
• Model NO.: LF-70t
• Place Style: Vertical
• Usage: Steel Making Plant
• Transport Package: Nude, Wooden Cases
• Specification: As per drawing
• Trademark: Ville Industry
• Origin: China
• HS Code: 851300020
• Production Capacity: 30units Per Year

Product Description

Lf-70t Ladle Refining Furnace Specification
1. Overview:
Features of ladle refining furnace: electric arc heating, temperature measuring and sampling, bottom argon blow stirring, contents microscale adjustment, wires feeding, control production steps of steel making and casting.
2. Main function of the equipment

1. 1. Heating by Arc to raise the temperature of molten steel under normal atmosphere, temperature measuring and sampling by manual.
   2. Bottom bubbling by Argon, to achieve the temperature and composition even and clean.
   3. It can be slightly adjust the quantity of alloy, to control accurately and meet the final chemical compositions as required.
   4. With the wire feeder, making desulfurization, de-oxidizing of the molten steel, to change the form and distribution of the inclusions and control the alloying element accurately, meanwhile can raise the recovery up of the alloy,minimize the temperature drop and minimize the environmental pollution.
   5. Reserving for the dust collecting system.
   6. As a buffer to adjust the melting and casting time to achieve continuous casting successfully.

3. Main Technical Parameter
Ladle rated capacity 70T
Free board 500mm
ladle car travel speed 3-20m/min
ladle car driving method VVVF
ladle car position accuracy ±10mm
Electrode diameter Ф400mm
Pitch circle diameter Ф700mm
Electrode lifting distance 2300mm  
Electrode travel speed 4m/min(up, auto)
3m/min(down,auto)
Temperature rising rate 4ºC 
Transformer capacity 12MVA+20%
Primary voltage 33KV, 3 P, 50Hz
Number of taps and voltage steps 7 (Off load tap changer)
Type of cooling OFWF



2. Supply list

SN	Item	Qty	Remark
1	Mechnical parts
1.1	Furnace body (upper shell and lower shell)	1 set
1.2	Tilting mechanism	1 set
1.3	Water cooled roof and water pipe	1 set	Tubular, Hongxinyuan
1.4	Roof lifting and rotating mechanism	1 set
1.6	EBT platform	1 set
1.7	Rotation frame locking device	1 set
1.8	Feeding hopper(on the roof)	1 set
1.9	Electrode nippling station	1 set	4 nos.,
1.10	Cooling water distributor	1 set
2	Electrical parts
2.1	Transformer 40MVA/20kV c/w hydro-oil cooler	1 set	China top make
2.2	20kV high voltage system (GBC40.5kV panel)	1 set	china VCB
2.3	Short network	1 set
2.4	Lower voltage system	1 set
2.5	PLC automation and HMI system	1 set	Siemens PLC S7-300
3	Auxiliary items
3.1	Hydraulic power pack	1 set	Proportional valve & pump make: Parker
3.2	Compressed air device	1 set
3.3	Lubrication station	1 set
3.4	Water cooled door oxygen lance	1 set	with hydraulic station
3.5	CNG, oxygen, carbon wall lance (3 pcs.)	1 set	with valves stand
3.6	Steel temperature & measuring thermometer	1 set	with LED display

 

Supplied by the Buyer:
1) Installation and installation materials, Hydraulic medium, lubrication medium and cleaning medium, Graphite
    electrodes, Furnace refractory lining;
2) Civil works and design (Seller provides furnace foundation drawings and civil work requirements), embedded
    furnace foundation parts;
3) Water supply and gas supply main inlet are laid to Seller's equipment connection point, H.V. incoming line is
    connected to Seller's H.V. panel and furnace transformer terminals, L.V. line is connected to Seller's L.V.
   distribution panel.

Workshop

Sales team: