Project Overview
For a metals recycling and refining company in Eumseong County, Chungcheongbuk-do, Korea, Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. supplied a 3000kVA copper smelting electric furnace together with a precious metal melting furnace. The plant processes copper-bearing secondary materials and recovers precious metals.
Project Facts
| Item | Detail |
|---|---|
| Location | Eumseong County, Chungcheongbuk-do, Korea |
| Copper furnace | 3000kVA copper smelting electric furnace |
| Precious metal furnace | Precious metal melting furnace |
| Precious metal furnace start-up | Commissioned on 8 May 2024 |
| Services | Design, manufacture, installation, cold and hot commissioning, operator training |
Execution Phases
- Factory fabrication - shell, hood, electrode system and water-cooled components manufactured and pressure tested in Chengda's workshop
- Shipment and site installation - equipment packed for sea freight, then installed and aligned with the customer's construction team
- Cold commissioning - electrical verification, hydraulic system testing, water circuit flushing and interlock checks
- Hot commissioning - charge melting, slag and metal tapping trials with process parameters adjusted to the customer's feed material
- Operator training - Chengda engineers provided detailed component training covering working principle, operating procedure, safety interlocks and routine maintenance
Technical Highlights
Copper smelting electric furnaces must handle high thermal load, aggressive slag and frequent tapping. The 3000kVA unit uses water-cooled wall panels at the slag line, a sealed hood with controlled off-gas extraction, and hydraulic electrode regulation to keep the arc stable as the bath composition changes. The precious metal melting furnace was designed for smaller batches with tighter temperature control to minimise metal loss in slag.
Outcome
The precious metal melting furnace entered production on 8 May 2024, and the 3000kVA copper furnace has since completed training and moved into routine operation. The customer praised the equipment quality and the depth of the technical support provided on site.
Service Commitment
Delivery included drawings, water pressure test records, commissioning reports and operator training. Chengda's engineers remained on site through the training period and continue to provide remote technical support for both furnace lines.
Why Korea Chose Chengda
The customer compared furnace suppliers on delivery time, water-cooled component quality and willingness to support commissioning in Korean conditions. Chengda's record of similar copper and precious metal furnace projects, together with a clear documentation package, secured the order and led to repeat service requests.
Chengda also provided spare parts recommendations and maintenance schedules covering electrodes, holders and water-cooled panels.
The two furnace lines now operate as a linked process: copper smelting first, precious metal melting second, with shared site services.