Strip steel pickling circulating system

Abstract

The invention discloses a strip steel pickling circulating system. The strip steel pickling circulating system is mainly characterized in that a strip steel inlet is formed in a first pickling tank, and the first pickling tank is connected with a second pickling tank; the second pickling tank is connected with a third pickling tank, and the first pickling tank, the second pickling tank and the third pickling tank are all connected with an acid mist pretreatment device; the acid mist pretreatment device is connected with an acid mist purification tower and a rinsing tank, and the right end of the acid mist purification tower is directly connected with atmosphere through a pipeline; the lower end of the acid mist pretreatment device and the left end of the rinsing tank are connected with the upper end of a third acid storage tank through pipelines; a water supplementing pipe is connected with the upper end of a condensate water tank, and the condensate water tank is connected with a first heater, a second heater and a third heater through pipelines; a strip steel outlet is formed in the right end of the rinsing tank, and a rinse water draining opening is formed in the bottom end of the rinsing tank; and the bottom end of the rinsing tank is connected with the right end of the condensate water tank through a water pump.

Description

technical field [0001] The invention relates to the technical field of pickling, in particular to a strip pickling circulation system. Background technique [0002] The strip pickling cycle system is the core of the pickling workshop in the cold rolling mill, and its quality directly affects the quality of the steel plate product. The pickling system is a process of chemically removing oxides on the surface of the strip. The cold-rolled stainless steel pickling line is a key process in the cold-rolled stainless steel production process. At present, the pickling section of the cold-rolled stainless steel pickling line generally uses mixed acid pickling. During the production process, semi-automatic manual control is adopted. time, the acid solution is sampled, the concentration of the acid solution is detected, and then the concentration of the acid solution is corrected by manual calculation, which cannot be continuously controlled during the production process, and the sur...

AI Technical Summary

Problems solved by technology

The cold-rolled stainless steel pickling line is a key process in the cold-rolled stainless steel production process. At present, the pickling section of the cold-rolled stainless steel pickling line generally uses mixed acid pickling. During the production process, semi-automatic manual control is used. time, the acid solution is sampled, the concentration of the acid solution is detected, and then the concentration of the acid solution is corrected by manual calculation, which cannot be continuously controlled during the production process, and the surface pickling quality of the strip steel cannot be well controlled. The amount of sludge formation in the liquid is also large, which increases the frequency of waste acid discharge of the acid liquid and increases the consumption of new acid

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