Rapid changing method of pickling tank

Abstract

The invention relates to an acid milling unit and particularly relates to a changing method of a pickling tank. The rapid changing method of the pickling tank comprises the following steps: step 1, simultaneously blanking a pipeline to assemble a pipe section, constructing and maintaining a liner main body of the pickling tank before machine halt; step 2, carrying out machine halt, and hoisting the pickling tank through four points in a balanced manner to a design workstation; step 3, constructing a joint of the liner main body and the outer walls of the pickling tank outside the pickling tank while paving the pipe section assembled in the pickling tank according to the design. The rapid changing method of the pickling tank effectively guarantees the construction quality, greatly shortens the influences of the construction on a production line, and makes profits for an owner.

Description

technical field [0001] The invention relates to a pickling mill, in particular to a method for replacing a pickling tank. Background technique [0002] With the development of economy and technology, the equipment of the original strip steel acid rolling line production line of my country's metallurgical enterprises is increasingly showing the problem of insufficient capacity: it does not have the ability to batch and stably produce high value-added strip steel, such as silicon steel content exceeding 3.0% Higher grade non-oriented silicon steel above. In order to meet the technological requirements of producing high-value-added high-grade non-oriented silicon steel, the pickling tank must be replaced, which will inevitably require the transformation of the production line of the pickling mill. [0003] In the normal shutdown reconstruction, the pickling tank is hoisted with a steel body, and the inner lining is built after it is in place. The whole acid rolling production ...

AI Technical Summary

Problems solved by technology

[0002] With the development of economy and technology, the equipment of the original strip steel acid rolling line production line of my country's metallurgical enterprises is increasingly showing the problem of insufficient capacity: it does not have the ability to batch and stably produce high value-added strip steel, such as silicon steel content exceeding 3.0% Higher grade non-oriented silicon steel above

However, the average daily profit of the acid rolling mill is over one million yuan, and the long-term shutdown means that the renovation cost of the owner has increased sharply.