Carbon steel push-pull pickling unit (PPPL)

　　A push-pull type hydrochloric acid shallow tank turbulent pickling process is used to remove the iron oxide layer from the surface of the hot-rolled strip and cut off the irregular edges of the strip, providing qualified hot-rolled plate raw materials for the next process. The pickled strip has a pure iron surface and can be cold-rolled or hot-dip galvanized.

 

　　 Unit Features

　　Uses single uncoiling non-continuous type; uses multi-stage shallow tank turbulent pickling process and multi-stage water washing process

　　Annual Production Capacity: 200,000-600,000t/a

　　Raw Material: Carbon steel hot-rolled coil

　　Steel Grades: CQ, DQ, DDQ, IF, HSLA, W440-W1300 silicon steel

　　Raw Material Specifications: 1.5-6.0mm x Width: 650-1650mm

　　Coil Diameter: I.D.Φ760/Φ610mm O.D.MaxΦ2150mm Maximum Coil Weight: 30t

　　Hot-rolled coil winding temperature: Max 670 degrees (IF < 720 degrees)

　　Strip passing speed: 30-60mpm

　　Process speed: Max 150mpm

　　Pickling time: 25-30sec

　　Uses SIEMENS or ABB electrical control system

 

　　 Production Process Flow

 

 

　　Coiling-Uncoiling-Straightening-Head Cutting-Corner Cutting-HCL Pickling-Water Washing-Drying-Edge Cutting-Inspection-Tail Cutting-Oiling-Coiling-Uncoiling