Anti-wear technology of water-cooled wall welds

       Keywords on this page: boiler furnace spraying, thermal spraying, boiler anti-wear spraying, boiler anti-corrosion spraying, supersonic arc spraying, boiler heating surface anti-wear anti-corrosion, boiler water wall anti-wear spraying, deflector anti-wear, anti-wear plate installation , Boiler deflector installation, longitude and latitude anti-wear

With the extension of the operating life of the CFB boiler, the long-term wear and tear of the water-cooled wall tube leads to the overall or partial thinning of the tube until the tube burst occurs from time to time. In this way, it is inevitable to replace the water-cooled wall tube with a new one locally. Then it is inevitable that the welded seam between the replaced new pipe and the unreplaced pipe will have "bumps" or unevenness after welding, so the welded seam has become the focus of wear. If arc spraying is used to protect this part, this solution is not advisable due to the construction characteristics of arc spraying, and the use of blue mud anti-wear technology can not only provide good closed protection for uneven welds, but also protect the lower part of the welds. The water-cooled wall pipes in a certain area play a good anti-wear protection effect. If necessary, 2-3 anti-wear skirts are added to the upper and lower parts of the weld for better effect. Practice has proved that this anti-wear construction scheme is a relatively scientific and practical scheme after the water-cooled wall pipe is replaced, and the whole construction process is relatively simple, which has been unanimously recognized by users.