Leak-detecting method for cooling system of blast furnace

Abstract

The invention discloses a leak-detecting method for a cooling system of a blast furnace, which comprises the following steps: firstly, confirming a leaking cooling pipe, connecting a transparent pipe with a vent valve of a section of cooling pipe at the middle part, and closing a communicating valve at the lower part of the section of cooling pipe at the middle part; then closing a return valve of the leaking cooling pipe, and opening the vent valve of the section of cooling pipe at the top of the leaking cooling pipe; raising the pipe end of the transparent pipe to the position of the vent valve of the section of cooling pipe at the top of the leaking cooling pipe, opening the vent valve connected with the transparent pipe to lead water in the leaking cooling pipe to freely decline and keep synchronous with water level indicated by the transparent pipe, and further confirming a water leaking position; and if the water level declines all the time, and till the joint of the transparent pipe and the vent valve still shows no signs of stopping, the connecting position of the transparent pipe can be moved downwards, and the method is repeated for continued observation until the water level stops declining, thus being capable of confirming the water leaking position. The method is convenient for operation and easy to master.

Description

Technical field [0001] The invention relates to the technical field of ironmaking blast furnace equipment maintenance, in particular to a leak detection method for a blast furnace cooling system. Background technique [0002] At present, the commonly used soft water closed circulation cooling system blast furnace cooling stave leak detection, mainly including ignition method, suppression method, etc., mainly close the water inlet and return ball valve for suppression or ignition leak detection. Both methods can detect water leakage, but due to whether the ball valve is closed in place, the two methods are easy to cause misjudgment, cause certain difficulties in leak detection, and cannot accurately indicate the exact location of the cooling wall leakage. Summary of the invention [0003] In view of this, the purpose of the present invention is to overcome the defects of the prior art and provide a leak detection method for the blast furnace cooling system, which is convenient to o...

AI Technical Summary

Problems solved by technology

Both methods can detect water leakage, but because it involves whether the ball valve is closed in place, the two methods are prone to misjudgment, causing certain difficulties in leak detection, and cannot accurately indicate the exact location of water leakage on the cooling wall

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