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Syed Rashid Ahmed ButtShaanxi Chengda Industrial Furnace Co., Ltd. completed the commissioning of electric arc furnace, the workers carefully cooperated with Chengda engineers to learn and operate the equipment, showing the deep friendship and excellent cooperation between the people of China and Pakistan. -
AboubacarAfter more than 1 month of intense production and debugging, 2 sets of heat exchange flue gas settling chamber equipment has been successfully put into operation ~ All the personnel involved in the project have worked hard! ~ -
Ji-hwan【 Warm congratulations 】 Shaanxi Chengda Industrial Furnace Manufacturing Company in South Korea, North Chungcheong County precious metal smelting furnace equipment installation and careful manufacturing and strict commissioning, looking forward to the future in more fields to achieve mutually beneficial win-win cooperation!
Contact Person :
Du
Phone Number :
13991381852
4000KVA DC Electric Arc Furnace Rectifier Power Supply System for High Carbon Ferrochrome Smelting
| Place of Origin | Shaanxi, China |
|---|---|
| Brand Name | Shaanxi Chengda |
| Certification | ISO 9001:2015 |
| Model Number | CD-DC-4000 |
| Minimum Order Quantity | 1 Set |
| Price | USD 300000-600000 / Set |
| Packaging Details | Main frame in seaworthy steel cradle, rectifier and PLC cabinets in vacuum bag with desiccant, electrode column and busbar on export pallets |
| Delivery Time | 2~3 months after drawing approval |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union, |
| Supply Ability | 40 sets per year, complete production chain with on time delivery |
Product Details
| Rated Transformer Capacity | 4000 KVA | Rated DC Voltage | 280-450 V |
|---|---|---|---|
| Rated DC Current | 10-14 KA | Graphite Electrode Diameter | 300 Mm |
| Hearth Anode Diameter | 500 Mm | Furnace Shell Inside Diameter | 2800 Mm |
| Bath Depth | 1100 Mm | Tap-to-Tap Time | 35-45 Min |
| Annual Output | 8000-12000 T High Carbon Ferrochrome | Electrode Consumption | 9 Kg/t Alloy Maximum |
| Noise Level | 82 DB(A) Maximum At Platform | Rectifier Type | 6-pulse Thyristor Rectifier |
| Highlight | 4000KVA DC arc furnace rectifier,high carbon ferrochrome smelting rectifier,ferroalloy refining power supply system |
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Product Description
4000KVA DC Electric Arc Furnace for High Carbon Ferrochrome Smelting
A compact direct current smelting unit for small and medium ferrochrome plants. One 300mm graphite electrode works against a conductive hearth anode, producing a stable vertical arc over a deep, quiet bath. The whole unit fits into an existing 20m by 15m bay, which makes it a practical entry point for plants that want DC arc economics without a large civil works budget.
Why a Small DC Furnace Beats a Small AC Furnace
- One electrode instead of three. Graphite use stays near 9 kg per tonne of alloy, roughly half the consumption of a comparable AC unit, and there is only one electrode column to handle, joint and regulate.
- Flicker reduction above 50 percent. The thyristor rectifier delivers smooth direct current, so the unit can run on a modest 10kV or 35kV feeder shared with other plant loads without triggering grid complaints.
- Natural electromagnetic stirring. DC current in the arc drives circulation in the melt, so chromium and carbon distribute evenly across the bath without extra stirring hardware.
- Quiet and cooler operation. Arc noise stays at or below 82 dB(A), and there is no rotating hot spot walking around the sidewall, so lining life is longer than on an AC shell of the same size.
- Low civil and installation cost. Short busbar run, small transformer bay and a single water-cooled cable set cut both steel structure and installation labour.
Scope of Supply
- Furnace shell with water-cooled panels, magnesia ramming hearth and conductive anode block
- Single graphite electrode, 300 mm, water-cooled holder with hydraulic lift
- Rectifier transformer, 6-pulse thyristor rectifier, DC busbar, water-cooled cable
- Hydraulic tilting drive with angle and pressure interlocks
- PLC automatic arc control with impedance regulation and alarm package
- Cooling water station, off-gas hood and dust collection interface
Technical Parameters
| Parameter | Value |
|---|---|
| Rated transformer capacity | 4000 kVA |
| Rated DC voltage | 280-450 V |
| Rated DC current | 10-14 kA |
| Graphite electrode diameter | 300 mm |
| Hearth anode diameter | 500 mm |
| Furnace shell inside diameter | 2800 mm |
| Bath depth | 1100 mm |
| Tap-to-tap time | 35-45 min |
| Annual output | 8000-12000 t high carbon ferrochrome |
| Electrode consumption | ≤ 9 kg/t alloy |
| Noise level at platform | ≤ 82 dB(A) |
| Cooling water flow | 80-120 m³/h closed loop |
Application
High carbon ferrochrome and charge chrome smelting at 8000 to 12000 tonnes per year, small ferromanganese and silicomanganese campaigns, and pilot or demonstration lines for new ore sources. A good fit for plants with a captive 10kV supply and limited floor space.
Engineering Support and Delivery
We size the furnace from your ore assay, power supply and target tonnage, then supply process design, manufacture, installation supervision, commissioning and operator training with a one year spare parts package. Delivery is normally 2 to 3 months after drawing approval. Send your ore analysis and available transformer capacity for a tailored quotation.
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