Project Scope
Ferroalloy production demands furnaces that can run continuously at high power with predictable electrode consumption. Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. has delivered submerged arc furnaces from 3000kVA pilot units to 33000kVA production lines, covering ferronickel, ferrosilicon, silicomanganese, high-carbon ferrochrome and special matte smelting duties.
Featured Projects
| Project | Capacity | Process |
|---|---|---|
| Inner Mongolia Fengzhen ferronickel furnace | 33000kVA | Laterite nickel ore smelting |
| Hematite reduction matte smelting furnace | 3000kVA | Reduction matte smelting / precious metal recovery |
33000kVA Ferronickel Furnace
This large closed furnace line was engineered as a complete plant: plant building general layout, second-floor hood, third-floor brake and charging bin arrangement, fourth-floor flue gas system, transformer hall and water treatment system. The design brief required high availability, low electrode breakage and stable slag chemistry under continuous operation.
- Full 3D layout coordination between the furnace, charging bins, flue duct and crane runway
- Water-cooled hood and flue system sized for high dust loading from laterite ore
- Hydraulic electrode slipping with brake units, pressure rings and water-cooled sleeves
- Compensation and short network designed for low reactance and balanced three-phase power
3000kVA Matte Smelting Furnace
This unit was built for hematite reduction matte smelting as well as secondary resource recovery of precious metals. Chengda optimised the design against the engineering institute's process parameters rather than supplying a standard shell: a fixed furnace with low hood and electrode holder structure, three-phase AC power, and a tapping arrangement suited to periodic matte and slag tapping. The result is a compact furnace that can be switched between ore smelting and secondary material treatment.
Delivered Value
For ferroalloy producers, the economics of a furnace are decided by power consumption per tonne, electrode consumption and campaign life. Chengda's designs target all three through balanced electrical design, controlled shell cooling and proven refractory and tapping practice. Each project is delivered with general arrangement drawings, electrical documentation, commissioning procedures and operator training.
Delivery Scope
Both projects were delivered as complete packages: furnace proper, electrode system, hydraulic station, water cooling, short network, transformer interface, control system, installation drawings and commissioning support, followed by operator training on site.
Commissioning Approach
Chengda verifies every furnace in three stages: workshop pre-assembly and no-load electrical checks, site cold commissioning of hydraulics and water circuits, then hot commissioning with charge melting and parameter tuning. Operators are trained during the hot phase, so the plant takes over a furnace that has already run at design load.
Both furnaces are supported by Chengda's spare parts programme, which covers electrode holders, pressure rings, water-cooled sleeves and hydraulic components.