≥ Project Name: 1450mm Push-Pull Pickling Production Line
Customer name: Hebei Baosheng Group
Project nature: new construction
Undertaking method: Jingjie Ruisi general contracting
Signing time: November 12, 2010
Production: Under construction
Operation: Good
1. Basic parameters
1. Raw materials: cold-rolled carbon structural steel, high-quality carbon structural steel and low-alloy steel coils
2. Steel grade: Q195, Q235, ST12, ST13, SPCC, SPCD and 20#
3. Yield strength: 210~360N/mm2
4. Tensile strength: 270~610N/mm2
5. Strip thickness: 1.8~4.0mm
6. Strip width: 600~1300mm
7. Raw material inner diameter: Φ610mmmm/Φ760
8. Product inner diameter: Φ610mm
9. Outer diameter of steel coil: max Φ2000mm
min Φ1100mm
10. Unit weight of steel coil products: max 26 t
11. Annual operation plan: 300 days * 24 hours
12. Energy: water, electricity, steam
13. Product form: roll to roll
14. Production program: 400,000 tons/year
15. Unit ****** process speed: 120m/min
16. Process method: push-pull shallow groove turbulent hydrochloric acid pickling
17. Production line layout: from left to right from the operation side
18. Production line ****** process speed: 120m/min
19. Strapping speed: 10-60m/min
20. Jogging speed: 10-30m/min
21. Unit transmission mode: AC transmission, frequency conversion speed regulation
22. Acid concentration Max: 200 g/L HCl, 125g/L Fe2, 5 g/L Fe3
23. Minimum pickling time: 26s
24. The total length of the acid tank: about 50 m
25. The total length of the unit: about 120 m
26. ****** uncoiling tension: 25 kN
27. ****** coil tension: 80 kN
2. Technological flow
The main equipment is composed of the following according to the process:
Crane loading to receiving platform→ loading troller→ uncoiler→ uncoiler→ steering pinch roller→ vertical guide roller→ five-roller straightening machine→ cutting head shear→ cutting corner shear (with scrap basket)→ scale breaker (with scrap basket)→ tensioning machine→ vertical guide roller→ extrusion dryer→ process section→ edge blower→ hot air dryer→ gripping machine→→ conveyor → centering vertical roller → clamping centering machine→ disc shearing → waste edge coiler three-roller tensioning roller→ shearing machine→ vertical guide roller→ outlet steering clamping→ movable guide plate→ pressing roller→ winding machine→ auxiliary support→ unloading trolley → receiving platform→ the steel coil is lifted to the reel storage warehouse by the crane