




Push Pull Pickling Line
The pickling unit is push-pull pickling line with an annual output of 300000 tons. The unit adopts the relatively advanced shallow groove turbulent pickling technology, which has the characteristics of reasonable equipment structure, high operation efficiency, low production consumption, convenient operation and less equipment operation failure. The control system adopts advanced Siemens Programmable system, which ensures the stable operation, simple maintenance and low maintenance cost of the equipment.

For coils to be pickled:
Cold-rolled carbon structural steel, high-quality carbon structural steel and low alloy steel coils.
Steel type: Q195/235, ST12/13, SPCC, SPCD and 20#
Yield strength: 210~360N/mm 2
Tensile strength: 270~610N/mm 2
Specifications
Coil thickness:1.8~4.0mm
Coil width: 550~1400mm
Inner diameter of coils to be pickled: ф610mm/760mm
Inner diameter of coils after pickling: ф610mm
Coil outer diameter: max.ф 2000mm
Coil weight: max 26t
Annual work plan: 300 days×24 hours
Energy: water, electricity and vapor
Product form: coils one after another
Production capacity: 300000Ton/year
Max. Process speed: 120m/min
Process method: Push-pull shallow trough turbulence hydrochloric acid pickling
APU layout direction: From left to right when seating at operation out board
Max. process speed: 120m/min
Threading speed: 10~60m/min
Point move speed: 10~30m/min
Transmission way: AV driving system, speed regulated by variation
frequency
Acid concentration: Max 200 g/L HCL, 125g/L Fe 2+ ,5 g/L Fe 3+
Min. acid pickling time: 26s
Acid trough length in total: about 50m
Whole ACU length: about 120m










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