Continuous, Semi-Continuous & Push Pull Pickling Lines
Tenova supplies high-capacity and high-quality fully automatic Continuous Pickling Lines for Carbon steel (CPL) and continuous annealing and pickling line for Silicon Steel (APL). Tenova continuous Pickling Lines ensure accurate strip and pickling control, stable processes and precise strip tracking.
Overview
Features of Tenova Technology:
- Plastic or steel rubber lined pickling tanks
- Shallow-type & high-agitation pickling tanks for high efficiency and shorter process section
- PPPL tanks completely flat in granite to facilitate strip threading
- Multi-cascade system of HCl
- Multi-cascade rinsing system, each rinsing compartment equipped with spray headers above and underneath the strip
- On-line Acid management for Accurate analysis & control of acids, effluents and fumes
- Potential zero waste
- Plant Rotating Turret-type Side Trimmer Chopper (Automatic Gap adjustment, excellent cut accuracy) with Scrap Chopper
- Tension Leveler/Scale Breaker for more efficient pickling and strip shape improving
- Skinpass (Option) to improve flatness and to imprint proper roughness
Technical data
Continuous Pickling line
- Capacity up to 2.200.000 ton/year
- Process speed up to 350 m/min
- Entry/Exit sections speed up to 800 m/min
Push Pull Pickling line
- Capacity up to 750.000 ton/year
- Process speed up to 180 m/min
- Single or Double entry section
- Thickness up to 12 mm
Safety
Answering to workers concern about safety, Tenova pickling lines are designed following high safety relevant requirements. Proposed pre-cautions and safety installations are the result of many years of experience in construction and operation.
Main safety principles:
- during line operation, no hazardous liquids or fumes escape into the working area;
- the waste air fan is connected to emergency power supply;
- during instrument air failure, all valves fall in a fail-safe position by spring operation:
- the pickling line is closed by covers made from polypropylene material shaped and stiffened by means of metal structural members and a set of oil-hydraulically lifting devices enabling access to the tank’s interior;
- condensate produced by heat exchangers is continuously analyzed by means of conductivity and pH-meters to assure that no acid leaks into the condensate system.
Automation
- Fully automatic coil handling
- Fully automatic process control
- Largely intuitive video pages
- High availability, easy improvement and maintenance
- Automatic control of input data
- Production reports
- Troubleshooting
- Remote service
Environment
Concerned about the environmental impact, Tenova adds the Acid Regeneration Plant (ARP) to its proven technologies in pickling line, designing and managing “Zero Waste” plants with no external fluids.
ARP is based on reverse pickling chemical reaction to regenerate the hydrochloric acid from iron chloride produced during the pickling. The conversion efficiency of this regeneration process is more than 99%.
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