Efficient copper smelting set

A very efficient copper smelting set. Maximizes the capacity of pipes and belts. A fully electrified train station, with optional hydrogen refueling. Each train has 14 loading bays, plus one spare.

Needs supplies of:

1. sand
2. crushed copper ore
3. copper scraps (optional)
4. graphite
5. water
6. acid
7. lime

Requires disposal of:

1. slag
2. sulfur (trace amounts)
3. carbon dioxide (trace amounts)