Specifications
1. Submerged Arc Furnace
2. Low power consumtion
3. Resonable price
4. Energy-saving
5. CCC. CE, ISO
1. Product usage
The Submerged Arc Furnace is mainly used for Producing ferroalloy (including ferrotungsten, high carbonferromanganese, high carbon silicon iron, high-carbon Cr, Nickel Iron Alloy) and Silicon, calcium carbide, corundum, Yellow Phosphorous, etc.
2. Main Features:
It can be divided into three kinds according to mode of power supply:
1) AC Submerged Arc Furnace
2) DC Submerged Arc Furnace
3) Low-frequency Submerged Arc Furnace
3. Main Compositions:
Mechanism System:
Furnace Shell
Furnace Cover
Fume exhaust system
Electrode System: Electrode holder, electrode lifting device and electrode clamping/ releasing device
Charging System
Hydraulic System
High Current System
Water-cycling system
Tapping System
Electric system:
Transformer
High-voltage control protection system
Low-voltage control protection system
Computer operating system
Heavy gauge water-cooled cable
Electric arc furnace uses electricity as fuel source and utilizes the arc high temperature produced by electrode and furnace charge to heat and melt the furnace charge. It is widely using in production of normal steel, high quality carbon steel, various alloy steel, stainless, various ferroalloys. It is the key equipment in steel making factories, foundry factories, ferrous alloys making factories and etc.
Characteristic:
1, Smelting temperature is flexible to be controlled, to meet different steel grade production needs.
2, High heat efficiency, atmosphere inside furnace can be controlled.
3, Remove the phosphorus, sulfur, oxygen and other impurities and improve steel quality.
4, Easy to control the chemical composition of steel, stable and high recovery rate of alloys.
5, Equipment is simple and shorter technological process.
Adoption of new technology:
1, Optimization design
2, Tubular water cooled furnace wall and furnace lid
Eccentric bottom tapping (EBT)
Copper-steel combined electrode arm
3, Cluster type large sectional area water cooled cables
Optimize large current system structure (energy-saving type)
Proportional valves hydraulic system
Basic level (PLC) + procedure level ( Industrial control computer) Control system
Frequency control technique
| Category |
Main raw−material |
Final products |
Reacyion temperature (Celsius Degree) |
Power consumption kWh/t |
| Ferroalloy Furnace |
Ferrosilicon Furnace |
(45%) Ferrosilicon |
Ferrosilicon, scrap iron,coke |
Ferrosilicon |
1550−1770 |
2100−5500 |
| (75%) Ferrosilicon |
8000−11000 |
| Ferromanganese Furnace |
Manganese ore,scrap iron,coke,lime |
Ferromanganese |
1500−1400 |
2400−4000 |
| Ferrochrome Furnace |
Chrome ore, silica,coke |
Ferrochrome |
1600−1750 |
3200−6000 |
| Ferrotungstem Furnace |
Tungsten crystal ore, coke |
Ferrotungsten |
2400−2900 |
3000−5000 |
| Silicon chromium Furnace |
Ferrochrome, silica, coke |
Silicon chrome |
1600−1750 |
3500−6500 |
| Silicon manganese Furnace |
Manganese ore, silica,iron scrap, coke |
Silicon manganese |
1350−1400 |
3500−4000 |
| Steelmaking electric furnace |
Iron ore, coke |
Pig iron |
1500−1600 |
1800−2500 |
| Calcium carbide furnace |
Limestone, coke |
Calcium carbide |
1900−2000 |
2900−3200 |
| Boron carbide furnace |
Boron oxide, coke |
Boron carbide |
1800−2500 |
|
Manufacture bases
Shenda ( In full: Shenda Electric Group Co.,Ltd.) is one of the leading manufacturers in the power transmission & distribution industry. Founded in 2000 and currently employs about 1,100 employees worldwide. Shenda operates four factories(three in China and one in the United States of America - R. E. Uptegraff Manufacturing Company, LLC of Pennsylvania, U.S.A.). One base 330kv and dry type base under construction)
Shenda also owns other ten subsidiaries throughout China. The annual gross sales is USD$250 million in 2015.
Shenda's annual total production capacity is about 18,000,000 KVA, Our main products include oil immersed power transformer(up to 250MVA/ 330kV) , dry type transformer(up to 20MVA/35kV), combined transformer substation, amorphous alloy transformer, rectifier transformer (100MVA/220kV )and especially furnace transformer(180MVA/220kV). Our products' performance measures up to the standards established by International Electric Committee (IEC).
Certifications
Test lab
Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test.
A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers
- Measurement of winding resistance .
- Measurement of voltage ratio and check of phase displacement.
- Measurement of short circuit impedance and load losses.
-Measurement of no-load losses and current .
-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) .
B - Type tests :
The following tests shall be carried out
- Temperature rise test
- Lightning impulse test
C - Special tests :
- Determination of noise level according to IEC 60551 .
- Oil leakage test
- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) .
- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted).
Clients
Packaging and transportation
Audited Supplier 
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