Project name: 1450 mm pull and push type pickling line
Customer name: hebei jinghua metal products company
The nature of the project: new project
Undertake: Beijing JieRui general contracting
A time: on March 22, 2007
Production: production on time
Operation: in good condition
A basic information, unit:
Raw material: cold-rolled carbon structural steel, quality carbon structural steel and low alloy steel coil
Steel grade: Q195, Q235, ST12, ST13, (SPCC), SPCD and 20 #
Yield strength: n/was 210 ~ 360
Tensile strength: n/was 270 ~ 610
Strip thickness: 1.5 ~ 1.8 ~ 4.0 mm
Strip width: 600 ~ 1300 mm
Raw material inside diameter: & Phi; 610 / & Phi; 760 mm
Inside diameter of products: & Phi; 508 / & Phi; 610 mm
Coil diameter: Max & Phi; 2000 mm/min & Phi; 1100 mm
Steel coil sheet: 25 t Max
Work plan: 300 days * 24 hours
Energy, water, electricity and steam
Product form: volume to the volume
40 ~ 500000 tons/year production plans
Set maximum process speed: 120 m/min
Two production lines, the main body of technical indicators
Method: push-pull type shallow slot turbulent hydrochloric acid pickling
Production line arrangement: look from the side work from left to right
The largest production line process speed: 120 m/min
Wear a belt speed: 10 to 60 m/min
Point move speed: 10 to 30 m/min
Unit mode of transmission: ac drive, frequency conversion speed regulation
Acid concentration: Max 200 g/L HCl, Fe2 + 125 g/L, 5 g/L Fe3 +
Minimum pickling time: 26 s
Acid tank total length: 57.5 m
Unit: the total length of 125 m
Biggest uncoiling tension: 25 kN
Maximum coiling tension: 68 kN
Third, technological process and equipment
According to the main equipment in process order as follows:
Crane loading to the bench material & rarr; The cart & rarr; Decoiling (ground roll & rarr; an open-book knife & rarr; pinch roll & rarr; straight head machines, three roller & rarr; cutting head cut & rarr; corner cut cut (with waste basket)) & rarr; Uncoiler & rarr; Activity telescopic guide & rarr; With a pinch roll 5 roll straightening machine & rarr; Roller & rarr; Pinch roll & rarr; Cut cut tail (with waste car) & rarr; Guide roller & rarr; Manual welding platform & rarr; 1 # puller roller & rarr; Centering vertical roll & rarr; 2 # the puller roller & rarr; Pickling tank (5 & times; 11500 mm) & rarr; Flush the tank (3 & times; 2500 mm) & rarr; Blowing edge finder & rarr; Hot air dryer & rarr; 3 # puller roller & rarr; After looping pit (with swing arc roller) & rarr; Centering vertical roll & rarr; 4 # puller roller & rarr; For the machine & rarr; The disc shear (crimping machine) & rarr; Three roller tensioning roller & rarr; Shearing machine (itself with pinch) & rarr; Turned to the pinch roll & rarr; Activity guide & rarr; Reel (roller) & rarr; Activity support & rarr; Discharging car & rarr; The material test bench
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