Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1998-03-03
2000-08-01
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
134 9, 134 15, 134 18, 134 41, 134 28, 134 32, B08B 102, B08B 308, C23G 102, C23G 108, C23G 302
Patent
active
060961376
ABSTRACT:
A pickling plant for a steel strip and a method for controlling the pickling plant, including monitoring at least one quantity of state represented by thickness, width and quantity of scale of the steel strip, and at least one quantity of state of operation of a plant represented by concentration, quantity and temperature of acid supplied into a pickling tank of the pickling plant, line speed of the steel strip, and temperature of the steel strip immediately before entering the pickling tank calculating on the basis of values of said quantity of state and quantity of state of operation, at least one of concentration distribution of acid, concentration distribution of iron and descaling rate at optional plural positions, and on the basis of the calculating the optimum quantity of state for operation of the plant is determined.
Kani Yasunobu
Kikuchi Tomoko
Mabuchi Katsumi
Nakamura Tsuneo
Yokosuka Shinichi
El-Arini Zeinab
Hitachi , Ltd.
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