Download - Plant visit report
Plant Visit Report
Plant visited JSPL Raigarh
Prepared by: Mr. Surya G Mr. Chandrasekhar N Mr. Sundhar GG
EAF Characteristics
Description Unit
JSPL (Raigarh) JSW
Shell Life Heats 600 400
Shell changing time Hrs 8 60
EBT change Heats 300 160-180
EBT changing time Hrs 4 8
Oxygen Injectors Nos 4 4
Injector Life Heats 600
Injection System
Lumar SIS
Injector type
Non shrouding Shrouding
Carbon Injectors Nos 4+2 2
Facilities
Facilities Qty JSPL (Raigarh) JSW
Charging cranes Nos 2 1
Scrap charging crane Nos 1 0
Coke filling crane Nos 1 0
Casting cranes Nos 2 1
No Of Furnace Nos 1 1
Furnace capacity Ton 100 160
Spare Transformer Nos 1 0
LHF Nos 2 1
VD Nos 1 0
RH Nos 1 0
CCP Nos billet (closed) & combi Billet (open)
EBT filling dispenser (Pneumatic) Nos 1 0
Pot Carrier Nos 2 0
Heavy Dozer Nos 2 0
Techno parameters
Description Unit
JSPL (Raigarh) JSW (
No of Heats/day Nos 27 14
Avg. tap weight t 103 155
Avg. Seq size Nos 11 5.2
HM Charge % % 60.00 40.00
HDRI % % Nil 51.00
CDRI % % 40.4 8.00
Scrap % % NA 1.00
EAF Yield % 80.00 80.00
Heat Cycle Min 52 75
Power Factor 0.8-0.9 0.6-0.7
EAF Power KWh/TLS 380 430
LHF Power KWh/TLS 50 52
Electrode (EAF) Kg/TLS 1.7 2.40
Electrode (LHF) Kg/TLS 0.5 0.3
Injection Carbon Kg/TLS 14 16
Lime Consumption Kg/TLS 80 72
Dolo consumption Kg/TLS 40 68
EAF Slag FeO % 30.0 28.0
O2(EAF) Nm3/TLS 42 38
To be implemented for 27 heats
Additional casting crane required Power factor improvement One more horizontal Preheater required Pot carrier Nikko coke injection ready Electrode re-setting desk Electrode pneumatic tightening device ready Water spray arrangement to the elbow tray for faster cleaning One more Oxygen point at back side launder to clean launder
jam (for safety).