Slag dryer steel belt, Stainless steel conveyor belt, transmission steel belt, dry slag conveyor belt: Technical requirements: stainless steel wire mesh with diameter Φ4 / Φ5 mm, double-stranded, steel plate is produced by embossing, heat resistance above 800℃, time guarantee value not less than 50,000 h, appearance quality of steel strip: steel strip and sinking There should be no obvious dents in the bend of the surface of the string. Ensure the welding quality of the net and string, when the short-term or long-term high temperature strength of the joint is not less than the corresponding value of the base metal, and the surface of the welded part is smooth, the stainless steel conveyor of the straight section is flat, and the flatness error is 0.8 mm or less ;
Under normal boiler operating conditions, the hot slag (about 850°C) leaking from the bottom ash hopper will be discharged from the bottom ash discharge device to the steel belt of the steel belt conveyor and move slowly with the belt. Due to the negative pressure of the boiler, cold air will flow into the casing of the conveyor through the vents to cool the hot bottom ash on the belt and make it gradually reburn, thereby realizing the heat exchange between coal air and coal. The hot bottom ash, and then the cold air absorbs the sensible heat of the ash and the heat released by the reburning ash, before entering the boiler furnace, the air temperature will rise to 400-500°C. The bottom ash will be conveyed on the slag conveyor through a steel belt and cooled to below 200°C, and then conveyed to the subsequent conveying device.
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