Perfect steel strip pickling line

continuous&push-pull 150,000~600,000t/year

The descaling of hot strips of carbon steel is normally achieved in pickling lines consisting of many processing tanks where the steel strip comes into contact with a corrosive solution, normally hydrochloric acid. The acid reacts with the oxide layer. Iron chlorides and iron ions are dissolved into the acid baths. Maintaining the baths with fresh acid and discharging the exhaust solution maintains the processing capability of the line. In most cases, the pickling line is coupled with an Acid Regeneration Plant (ARP), which regenerates the exhaust solution by removing the iron content, thus reducing the consumption of fresh acid.

Usually, the scale thickness is 10 to 20 μm. Its so-called scale structure is not uniform, but mainly consists of a layer of wustite (FeO). According to the descaling model described by Frisch and Thiele (see Gruchot et al., 2001), the acid penetrates the scale structure, thus reaching the free metal surface. The reaction occurring between acid and free metal generates a local current flowing from the scale-free metal portion, acting as an anode, to the conductive wustite layer, playing the role of a cathode

The push-pull pickling line

Continuous Acid Pickling Line

Beijing JJRS Technology Development Co.,Ltd. registered in national high-tech park - Beijing Economic and Technological Development Zone, is a high-tech enterprise specialized in a complete set of metallurgical equipments for metal surface coating and steel strip intensive processing, its technology integrates machinery, optics, electricity and hydraulic pressure together. 

JJRS is professional on turn-key projects from general planning, designing to manufacturing, installing, commissioning and service. Besides, its business also covers the designing, manufacturing of single equipment, and automatic control system of engineering projects.

JJRS has passed ISO9001 quality management system certification, ISO14000 enviromental management system certification and GB/T28001 occupational health safety management system certification.

JJRS is committed to technology innovation and continuous process improvement of the metallurgical equipment, has achieved a number of scientific research achievements in energy conservation, waste recycling, etc. JJRS has obtained numbers of national patents and won a good reputation from customers both in China and abroad.

Bearing philosophy of advanced technology, professional team, customers first and perfect service in mind, JJRS gathers excellent technology research team and highly qulified management personnel together, the company has perfect management systerm, powerful engineering design and complete project capability by virtue of exquisite technology and scientific management.