Ferrosilicon electric furnaces are divided into reduction electric furnaces and refining electric furnaces. Reduction electric furnace, also known as submerged arc furnace or submerged arc furnace, adopts the submerged arc operation of inserting electrode into furnace charge. The reduction electric furnace has open, closed (or semi closed), and the furnace body has various forms such as fixation and rotation. Electric refining furnace is used to refine medium carbon, low carbon and micro carbon ferroalloys. The capacity of electric furnace is generally 1500 ~ 6000 KVA, which adopts the form of open fixing or tilting with cover. The former is similar to the reduction furnace and can be equipped with continuous self baking electrode; The latter is similar to electric arc steelmaking furnace, using graphite or carbon electrode.
1, Use of ferrosilicon
Ferrosilicon is an essential deoxidizer in steelmaking industry, and it is also added as alloying agent. In the steelmaking industry, about 3-5kg 75% ferrosilicon is consumed for every 1t of steel produced.
3600kVA HCFeCr Submerged Arc Furnace
| SN |
Equipment |
SPEC or Model |
Unit |
Qty |
Remark |
|
| 1 |
Submerged Arc Furnace |
|
set |
1 |
|
| 1.1 |
Mechanical Parts |
|
|
|
|
| 1) |
Furnace shell and H beam |
Steel structure part |
set |
1 |
Steel structure |
| |
Fume hood |
Steel structure part, water cooled cover panel |
set |
1 |
Steel structure |
| 2) |
Chimney |
Steel structure part |
sets |
2 |
Steel structure |
| |
Tapping hole fume hood |
Steel structure part |
set |
1 |
Steel structure |
| |
Electrode holder |
|
sets |
3 |
|
| |
Bellows pressure ring |
|
sets |
3 |
|
| |
Water cooled protect shell |
|
sets |
3 |
|
| 3) |
Electrode holding tube |
|
sets |
3 |
|
| |
Electrode tube |
|
sets |
3 |
|
| |
Pneumatic electrode clamp |
|
sets |
3 |
|
| |
Fittings, etc |
|
set |
1 |
|
| 4) |
Hydraulic power pack |
|
set |
1 |
|
| 5) |
Pneumatic valve stand |
|
set |
1 |
|
| 6) |
Seal device |
|
sets |
3 |
|
| 7) |
Cooling water distributor |
|
set |
1 |
|
| |
Copper tube |
|
set |
1 |
|
| |
Water cooled cable |
|
nos. |
36 |
|
| 8) |
Water cooled compensator |
|
nos. |
36 |
|
| Forged copper contact fence |
|
nos. |
18 |
|
| |
Fittings, etc |
|
set |
1 |
|
| |
Insulating material |
|
set |
1 |
|
| 9) |
Raw material distribution device |
Steel structure part |
set |
1 |
Steel structure |
| 10) |
Raw material feeding hoppers & chutes |
Steel structure part |
set |
1 |
Steel structure |
Electric arc furnace manufacturers
Electric arc furnace is the main molten iron production furnace in steel industry nowadays. It melts waste by electric arc.
Lite recommends:
The bottom of the electric arc furnace is made of aluminum-magnesium spinel brick and magnesia-chrome brick; the interior is made of magnesia-chrome brick, the exterior is made of aluminum-magnesium spinel brick; the upper part is also made of ordinary magnesia-chrome brick.
The tapping hole is made of aluminous silicon carbide ramming max and high quality magnesia charcoal brick.
The cover is made of high aluminum precast casting.
The bottom of the furnace is repaired by magnesium-calcium ramming, pouring and filling.
Repair and maintenance with magnesium, magnesium chromium ramming materials.
Lite offers a wide range of high quality refractory products for the furnace to meet your personalized needs.
How will we built it
Design plan and construction drawings
Design scheme: our company has a design company with first-class qualification, and the designer has 30 years of experience in kiln design. After the drawing is completed, three experts (civil engineer, construction engineer and operating engineer) will carry out the final review of the drawing to ensure that there will be no mistakes in the construction of the kiln.
Construction drawing: The dimensions of each place are marked on the construction drawing, and the name, size and quantity of the refractory used are marked. Any experienced construction worker can understand the drawings and follow the construction without any mistakes.
Evaluation and preparation of refractory materials
Lite offers a wide range of products for these types of furnaces, such as low cement castables, plastics refractories, gunning mix and insulation castables.
Construction procedure
Lite recommends:
For each of the designs, the service life of the refractory is predictable. But the same design can change dramatically due to different operations. Therefore, some furnaces require continuous maintenance. Our maintenance products include gunning mix, ramming mass, low cement castables and etc.
Acceptance and trial
1.. Whether the expansion joint is filled with insulation material, and whether the closed hole should be closed tightly
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