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Pickling Line

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Pickling Line

The pickling line is a process in steel metallurgy aimed at removing oxide scale from steel plates for further rolling, The mainstream technological process now is the push-pull pickling line and continuous pickling line.


The pickling line plays a crucial role in the field of steel metallurgy before cold rolling production. Its main function is to use mechanical and chemical processes to remove the oxide scale and dirt on the surface of the steel coil from the hot rolling plant, resulting in a clean surface of the steel strip. Circular cutters can be added to the pickling line to change the width of the strip to meet the needs of different users.


HiTo Engineering has been supplying the metal strip processing lines since 2008 and has over 80 references worldwide.

Hito Engineering - Continuous Pickling Line Manufacturer

technological process

The mainstream technological process now is the push-pull acid pickling line-PPL, which adopts the most advanced Shallow Trough Turbulence Acid Pickling technology. The equipment and technology provided are reliable, advanced, mature whole set equipment and technology that could fulfill the buyer's need for steady production and long-term running, which are proven by actual production. This technology is featured by reasonable structure, high efficiency, low consumption, convenient operation, and fewer malfunctions.


Welcome to inquire about continuous pickling line price, we are the best choice of pickling line manufacturers.

HiTo mission is to create the greatest value for our customers and grow into a leading Supplier Of Metal Coils Processing.  

advantages

The PPL HiTo Design and Manufacture

pickling line
HiTo pickling line is utilized the advanced technology of turbulence pickling and shallow-tank designing. It is used hydrochloric acid (HCL) as pickling medium.
Features
The oxide on strip surfaces is removed by chemical method. It has some features such as high pickling efficiency and quality, less pickling equipment and investment, flexible and convenient production.
Step 1
rinsing system
Four-level counter current series rinsing system is applied for this unit, which needs only a little rinsing water. The rinsing quality of strip surface is ensured through precise control the conductivity within the final rinsing section.
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speed control system
HiTo's pickling line is mainly driven by the AC variable-frequency speed control system. By PLC controller and monitor system, the whole line’s operation can be controlled and observed in HMI. With this system, this line has some advantages such as high precise controlling, stable running, safe and easy operating, and convenient maintenance.
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increasing the yield
Before the side trimmer, a CPC steering device is used on the pinch roll at the exit of the looper pit to prevent the strip from off tracking and improve the edge-cutting precision, increasing the yield consequently.
Step 3
drying the strip
In order to prevent the appearance of over-pickling and the halt spot of the strip caused by malfunctions and temporary halts of this unit, an automatic discharging device for acid is used. An edge blower with automatic control is applied on the hot air dryer to be easy for drying the strip.
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High acid washing efficiency
The process section of this pickling unit applies the quick cycling model with reversed turbulence and four-level cascade rinse, causing the high efficiency and effectiveness of pickling. One pair of spray pipes is mounted between two wringer rolls on the entry of the pickling tanks, rinsing the residual acid on the strip surface when strip moves to reversed direction, to prevent acid erosion from the equipment.
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Reduce pollution
This design is effective to decrease environmental pollution of the pickling line. The acid liquor is heated by the fully enclosed graphite heat exchanger, the water sealing grooves are equipped with between the pickling tanks and the covers to avoid the emission of acid fumes. Moreover, these tanks are directly jointed into the Fume Exhaust System, which can remove acidic fumes and water vapors more efficiently. On this line, the PH value of rinsing water collected at line bottom is automatically controlled, which can decrease emission gas to meet standard of air pollutants. The line with these kinds of design can meet the more and more stringent environmental protection requirements in the world.
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HiTo Push-pull Pickling Line Parameters

Raw Material Thickness mm Width mm Processing Speed Finish Products Energy
Hot rolled coils(Q195、08Al、Q235、SPHC、SPHD、SPHE) 1.5-3.5 750-1450 50-120MPM Pickled Hot Rolled Coils Electric, DM Water, Hydrochloric acid

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Pickling Line
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Contact person: Jack Sun
Tel: +86 15898943577
Add: SINO.Building, Yunmen Mountain Subdistrict, Qingzhou City, Shandong, China
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