Blast furnace tuyere nozzle

Blast furnace tuyere nozzle repair

Product description：

The tuyere of the blast furnace is on the blast furnace of the ironmaking plant. The high-temperature hot air blown from the tuyere of the blast furnace and the bottom coke is oxidized and combusted to generate CO. The CO reduces the iron in the form of oxides during the high-temperature rise. Usually installed in the furnace wall between the furnace belly and the furnace bottom, the front section has 500mm extending into the furnace. The blast furnace tuyere is used in an extremely harsh environment. It not only has to withstand high temperatures above 1500 degrees but also withstand the erosion and erosion of high-temperature iron flow. The wear of the charge and slag is easy to fail. The traditional solution is to frequently replace the tuyere, which causes the blast furnace to shut down and reduces production efficiency. How to improve the performance of blast furnace tuyere and extend its service life has become an urgent problem to be solved.

WILA Laser uses a laser beam to melt the coating material and thin-layer base material. After rapid solidification, a method of forming a cladding layer with extremely low dilution and roughly the same composition as the coating can form an alloy cladding layer on the surface of the crankshaft. Improve the wear resistance, corrosion resistance, heat resistance, and oxidation resistance of the surface of the substrate material. It can also restore the worn blast furnace tuyere nozzle to size, similar quality, and same performance repair.

The blast furnace tuyere nozzle processed by laser cladding repair technology has less heat input during cladding, which has little effect on the overall structure size of the blast furnace tuyere nozzle, and will not cause deformation of the blast furnace tuyere nozzle, and the laser cladding layer is very flat, which can not only make The damaged part of the surface restores the external dimensions as required, and also improves the surface corrosion resistance and wear resistance, thereby prolonging the service life and saving the cost of purchasing new products.