Repair method for solving water leakage of water seal tank of heating furnace

Abstract

The invention discloses a repair method for solving water leakage of a water seal tank of a heating furnace, and relates to the technical field of steel production. The repair method specifically comprises the following steps: S1, conducting surface treatment on the bottom surface of a heating furnace water tank; S2, conducting leakage point treatment conducted on the corrosion leakage points, and adopting a steel plate rapid attaching mode; S3, conducting primary prime coating on the bottom face of the heating furnace water tank, and adopting a brush coating or roll coating mode; S4, arranging a first reinforcing layer on the bottom face of the heating furnace water tank, and adopting a carbon fiber spreading mode; S5,conducting secondary prime coating on the bottom face of the heating furnace water tank, and adopting a brush coating or roll coating mode; S6, conducting primary floating coating on the surface of the pipeline, and adopting a blade coating mode; S7, arranging a second reinforcing layer on the surface of the pipeline, and adopting a macroporous fiberglass mesh winding and spreading mode; S8, conducting secondary floating coating on the surface of the pipeline, and adopting a blade coating mode; and S9, enabling the surface of the pipeline to be subjected to surface coating, and adopting a brush coating or roll coating mode. The phenomenon of water leakage of the water seal tank at the bottom of the heating furnace is avoided, and the hidden danger of gas leakage of a water seal tank due to low water level is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of iron and steel production, in particular to a repair method for solving water leakage in a water seal tank of a heating furnace. Background technique [0002] Severe corrosion of the water seal groove at the bottom of the furnace often occurs in the heating furnace of the medium and heavy plate coil factory, and water leakage occurs in many places. After investigation, it was found that the main reasons for corrosion perforation or corrosion thinning are: the water seal tank has been in operation for a long time, the original anti-corrosion layer has lost its effect, and the heating furnace uses mixed gas from coke oven, blast furnace and converter, and the medium Contains highly corrosive tar, benzene, naphthalene, dilute sulfuric acid, etc., which cause corrosion to the water seal tank, mainly manifested as corrosion bulges on the outer wall of the water seal tank, corrosion and layered peeling on the o...

AI Technical Summary

Problems solved by technology

In addition, due to the corrosive medium on the inner wall of the water seal tank, it also causes pitting corrosion on the inner wall of some water seal tanks, resulting in corrosion and perforation of the water seal tank, which is mainly manifested by medium corrosion leakage in the water seal tank

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