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SpecTechSnab Ltd. offers modern Electric Direct-Current Arc Furnaces DCAF.
DC Arc Furnaces allow melting:
- Ferroalloys
- High-quality steel
- Specials
- Slag with low metals content
- Catalysts
DCAF design advantages allow including them into processing chains of extraction high-value metals from waste.
Each furnace is manufactured for specific conditions, in strict accordance with the specifications.
DC Arc Furnaces are purchased by scrap recycling enterprises, metal containing waste recycling enterprises, small and medium-sized foundries, ferroalloy industries and laboratories of research foundry institutes.
Advantages of Direct Current Arc Furnaces (DCAF) compared with Induction Furnaces
| Advantage | Characteristic Value | Explanation of the DCAF Advantages |
| Productivity | + 100% | Melting time for cast iron 30-60 minutes (2 times faster than in induction furnaces) |
| Power Consumption | - 50% | Specific power consumption for gray iron 600-800 kWh/t, (melting and superheating up to 1400 deg) |
| Metal Quality | + |
1. Allows oxidation-reduction reactions
2. Reduced gas concentration in alloys: - Melt oxygenation is eliminated; - Hydrogen dissolved in metal is removed. 3. Reducible metal oxides |
| The possibility of melting non-ferrous and expensive metals | + | Allows melting even slag and catalysts with low metal content |
| Switch over to melting various alloy grades | + | Easy and low-cost switch over to melting various alloy grades |
| Using of various charging materials | + | Uses lightweight materials, including turnings and dust-like materials (metal yield up to 90%), large-sized charging material. |
| Produced metal prime cost | + | High productiveness;, low power consumption, possibility of using different charging materials, low waste of alloying elements. |
| Explosion hazard | - | Explosion-proof – the cooling lines are outside the furnace body. |
Cost-effective and high-production DCAF have shown good results in areas of low production capacity. DCAF are used to melt ferroalloys and high-quality steel and recycle waste products with low metal content.
Specifications:
| DCAF Models |
ДППТ 0,06 | ДППТ 0,25 | ДППТ 0,4 | ДППТ 1,0 | РДППТ 0,25 |
| Productivity, tn/h | 0,12 | 0,4 | 0,6 | 1 | 0,1-0,2 |
| Rated furnace capacity, tn | 0,06 | 0,25 | 0,4 | 1,0 | 0,25 |
| Melting and superheating time, h | 0,5 | 0,6 | 0,7 | 0,8 | 1,0 |
| Cooling water consumption, m3/h | 3 | 4 | 8 | 12 | 4 |
| Power Consumption (max, cast iron), kWh/tn | 650 | 600 | 550 | 550 | 800 |
| Furnace Overall Dimensions, mm: length width height |
1200 1200 2600 |
1500 1500 3500 |
4000 3000 4000 |
4000 3000 4000 |
1700 1700 3500 |
| Steelwork Weight, kg | 2000 | 3000 | 6500 | 9000 | 3000 |
Our company offers its customers the full range of services in selection (design) of arc furnaces DCAF, delivery and starting-up of the equipment. We also provide warranty and post-warranty maintenance of arc furnaces. The warranty period is 12 months since startup date.
