Method for checking damage of dust collecting bag

Abstract

The invention discloses a method for checking breakage of a dust collecting bag, which comprises the following steps: S1, confirming that the bag needs to be checked according to the condition that dust at an outlet of a coal discharge fan exceeds the standard; S2, opening a large cover, closing a lifting valve cover, and separating other air chambers; S3, opening an air inlet valve of the cloth bag box, and visually inspecting whether dust-mixed black gas is discharged from each cloth bag in the air chamber so as to accurately determine whether a leakage point exists or not; S4, sequentially checking each working chamber of the cloth bag box, and counting the cloth bag replacement condition; and S5, starting a coal discharge fan when the cloth bag is pulled out, generating negative pressure by the system, taking coal powder attached to the surface of the cloth bag away, and avoiding the dust raising on the operation site. The invention aims to provide the method for checking the damage of the dust collecting bag, and aims to reduce the stalling time of environment-friendly equipment, improve the judgment accuracy, improve the working efficiency of operators and achieve the purpose of accurately, quickly and efficiently checking the damage of the dust collecting bag in the process of checking the leakage points of the bag.

Description

technical field [0001] The invention relates to a method for checking the damage of a dust-removing bag. Background technique [0002] There are 7 series and 970 bags in the Coal Injection Operation Department of the Ironworks. Due to increasingly stringent environmental protection requirements, once the cloth bag is damaged, it must be replaced immediately! The demand for blast furnace pulverized coal is increasing. If the time to replace the bag is too long, it is very easy to cause accidents of less or no coal powder spraying in the blast furnace, which will affect the stability of the blast furnace. [0003] To replace the cloth bags, it is necessary to check all the cloth bags in the production series in turn. The quantity is large and the scope is large. The post personnel only rely on experience and appearance to judge whether there is powder accumulation. There are many wrong judgments and a high error rate. [0004] How to accurately check out the damaged cloth ba...

AI Technical Summary

Problems solved by technology

Due to increasingly stringent environmental protection requirements, once the cloth bag is damaged, it must be replaced immediately! The demand for blast furnace pulverized coal is increasing. If the bag replacement time is too long, it is very easy to cause accidents of less or no coal powder spraying in the blast furnace, which will affect the stability of the blast furnace.

[0003] To replace the cloth bags, it is necessary to check all the cloth bags in the production series one by one. The quantity is large and the scope is large. The post personnel only rely on experience and appearance to judge whether there is powder accumulation. There are many wrong judgments and a high error rate.

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