This document is an introduction to ABB's 2-Stand Inline Mill hot annealing and pickling line case study, which details the product's technical advantages, including a complete hardware and software solution, the most advanced MV and LV drive control system, and the advanced tandem cold rolling mill control concept.
The document presents ABB's complete solution for Lianzhong Stainless Steel Corporation's hot annealing pickling line, including electrical and automation systems, plant design, project management, training, erection supervision, and commissioning. It highlights ABB's technical superiority with state‑of‑the‑art MV/LV drive control, advanced tandem cold‑rolling mill control, and dynamic program change capabilities.
Key specifications are listed, such as a productivity of 400,000 ton/year, strip width 800‑1300 mm, incoming thickness 2.0‑4.0 mm, finishing thickness 1.0‑4.0 mm, and coil dimensions up to 2,200 mm diameter. The scope of supply covers medium‑voltage switchgear, transformers, MCC, UPS, diesel generator, ACS6000 and ACS800 drives, synchronous and induction motors, tension and thickness measurement systems, and a comprehensive automation system based on 800xA and AC800PEC controllers.
| Material | Hot rolled AIS 2xx, 3xx and 4xx Series |
|---|---|
| Productivity | 400,000 Ton/year |
| Strip width | 800-1300 mm |
| Strip thickness (incoming) | 2.0-4.0 mm |
| Strip thickness (finishing) | 1.0-4.0 mm |
| Coil diameter | 610-2200 mm |
| Coil weight (max) | 2800 Kg |
| Entry speed | 200 m/min |
| Mill speed | 180 m/min |
| Process speed | 120 m/min |
| Threading speed | 30 m/min |
| Medium voltage drive | ACS6000 |
| Low voltage drive | ACS800 |
ABB supplies the electrical and automation system, plant design, project management, training, erection supervision, and commissioning work.
The power distribution system includes medium voltage switchgear, a transformer, MCC, UPS (2 × 60 kVA), and a diesel generator.
The line uses a medium‑voltage drive (ACS6000) and a low‑voltage drive (ACS800), together with two 3000 kW synchronous motors and additional induction motors.