Abstract：Pickling is an important process in the production of cold- rolled strip steel, which can remove the scale of hot rolled plate effectively. With the development of the pickling process and equipment technology, new technologies and design programs are appeared, and the domestic pickling unit is close to saturation. Thus, the renovation project will become the mainstream. According to the corrosion of the aqueduct body, the PP materials is used to make the tank. Based on experiences of the renovation projects of several pickling lines projects in Baosteel, aiming at the acid mist and the leaking acid of wringer roll′s window, the separate water seal is applied combining with the optimization of tank material, and the one- piece side sliding door is used for the wringer roll′s window, which can well solve the problem of the acid mist and the leaking acid and have certain reference significance for the renovation projects in the future.
2017, Vol. 27 
