Thu 13 May 2021 | 22:34 Beijing
Integrated Solutions
Pickling Line

PICKLING LINE
 
Wastage in down-stream rolling and coating processes is reduced significantly if the metal surface is completely free from surface impurities such as scale, oil and grease. The cleaner the material at the beginning of the cold rolling process is, the more reliable and cost-effective the production of the required finished quality. Fast, effective pickling is the prerequisite to achieve this goal. This, in turn, requires a stable process, exact strip tracking and accurate strip and pickling control.
 
Pickling Technology for strip includes Push-Pull- and Continuous Pickling lines, the latter either standalone or coupled to a tandem cold mill.
 
Push-pull Pickling Line 
Push-pull pickling lines offer significant advantages with respect to investment costs and operational flexibility, particularly for frequently changing strip dimensions and steel grades. The capacity of the line is up to 600,000 TPA.
 
Flow sheet
Pay off Reel→ Nine roll Leveller → End Shear →Riveter →Entry Looper →Pre- rinsing Section Pickling Tank →Rinsing Tank →Hot Air Drier →Exit Looper →Deflector →Disc Shear(with scrap coiler)→Bridle Roll →Shear→ Oiler→ Coiler
 
Main Parameters 
Acid
Hydrochlorid acid
Strip Thickness
1.2-6.0mm
Strip Width
500-1700mm
Coil Weight
Max 30t
Line Speed
120m/min
 
Continuous Pickling Line 
Continuous Pickling is a production line that the steel strip is pulled continuously through the acid tank and rinsing tank. Continuous pickling lines feature modular design, high pickling efficiency, economical operation and the application of advanced technologies such as turbulence pickling. The capacity of continuous pickling line is up to 1 million TPA
 
Process Flow
Coil Prepare Station→ Coil Car→ Pay-off Reel→ Pinch Straightener→ Cutting Shear→ Welder→1# Bridle Roll→ Entry Accumulator →Front Tension Reel →Descaler→ Back Tension Reel→ Pickling→ Ice Water Clean→ Hot Water Clean→ Dryer→2#  Bridle Roll→  Exit Accumulator →Bridle Roll→ Control Roll→ Cutting Shear→ Disc Shear→ Feeder→4# Bridle Roll→ Oiler→ Pinch Roll→ Tension Roll→ Unloading Car
 
Main Parameters 
Acid
Hydrochlorid acid
Strip Thickness
1.2-6.0mm
Strip Width
500-1700mm
Coil Weight
Max 30t
Line Speed
200m/min