1450 mm pull and push type pickling line

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