Flue gas desulfurization process suitable for sintering machine of steel mill
A technology for desulfurization process and sintering flue gas, which is applied to the separation of dispersed particles, chemical instruments and methods, and separation methods. It can solve the problems of large amount of sintering flue gas, large fluctuations in flue gas temperature, and high moisture content, and achieve low operating costs. , no three wastes discharge, high desulfurization rate effect
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[0049] This technology uses ammonia water as an absorbent to convert liquid ammonia into 8-20% ammonia water.
[0050] The hot flue gas from the sintering machine enters the absorption tower after being dedusted by electricity or cloth bags. A double baffle isolation door is installed at the entrance of the desulfurization device, and an adjustable bypass baffle door is installed on the bypass flue, which is used for accidents or accidents. Used during maintenance. The hot flue gas enters the absorption tower, contacts with the hot flue gas countercurrently, the flue gas is cooled to 50-70°C, and at the same time completes absorption, oxidation, concentration and then evacuates. When the slurry has a solid content of 5%, the ammonium sulfate slurry is discharged by the pump and sent to the cyclone for solid-liquid separation.
[0051] Start the desulfurization circulation pump to spray the mixed liquid at the bottom of the tower through the spray layer, and contact with the f...
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