Project Overview
Titanium slag smelting requires high power density and stable operation under corrosive slag conditions. A Vietnamese titanium slag producer selected Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. for both phases of its capacity expansion, with three 6300kVA titanium slag furnaces placed into production.
Project Facts
| Phase | Equipment | Status |
|---|---|---|
| SQC Phase I | 2 x 6300kVA titanium slag furnace | Commissioned and in production |
| SQC Phase II | 1 x 6300kVA titanium slag furnace | Commissioned and in production |
Technical Approach
- Power density - transformer tap range and short network designed for high specific power to melt titanium-bearing charge efficiently
- Shell protection - water-cooled wall panels and spray cooling at the slag line to extend campaign life under aggressive slag attack
- Electrode control - hydraulic slipping with automatic impedance regulation to keep the arc stable during periods of variable charge resistance
- Tapping practice - tapping arrangement and ladle handling designed for periodic slag and metal tapping without interrupting the power programme
- Local conditions - tropical ambient temperature and humidity factored into cooling capacity and electrical insulation selection
Execution
Both phases followed Chengda's standard delivery route: process review with the customer's technical team, detailed mechanical and electrical design, workshop fabrication with staged inspection, water pressure testing of all water-cooled parts, export packing for sea freight, then installation supervision and hot commissioning on site. Phase II re-used the engineering platform of Phase I, which shortened design and manufacturing lead time and allowed the customer to share spare parts and training between lines.
Result
All three furnaces are running in continuous production. The repeat order for Phase II is the strongest evidence of customer satisfaction with the Phase I equipment - a pattern repeated across Chengda's international references.
Delivered Documentation
Each phase was handed over with general arrangement drawings, electrical drawings, water pressure test records, commissioning procedures and operator training, along with a recommended spare parts list for continuous operation.
Why the Customer Came Back
Phase I furnaces met output and availability targets in continuous operation, so the customer placed the Phase II order with the same technical route. Reusing the approved design cut engineering time, kept spare parts common across lines and shortened the learning curve for the operating team.
Chengda also supplied the tapping, ladle handling and cooling water systems, so the customer deals with one supplier for the entire furnace island rather than coordinating multiple vendors.
Both phases remain under Chengda's technical follow-up, with periodic review of furnace performance and consumable consumption.