关键词: KR脱硫, 喷粉脱硫, 降本增效

Abstract: Through the laboratory water mold experiment, the best way to add desulfurizer is spray suction type, during production process by measures like adjusting the Angle of the desulphurization spray gun to be close to 90°, the relative height of the spray gun to be 500 mm, the injection point of the desulphurization agent to be within 1/2 radius, the particle size of the desulphurization agent to be no more than 2 mm, the injection speed to be 130-150 kg/min, the powder/gas ratio to be 75 kg/Nm³, and the high-speed stirring time to be 4-6 minutes, etc, it solves the problems of low desulfurization efficiency caused by pipe clogging, splashing and unstable desulfurization yield in the actual production process, and gives full play to the advantages of desulfurization by spraying. Compared with the batch adding (gravity)method, the saving desulfurizer can reach about 25%.

Key words: KR Desulfurization, Desulfurization by Powder Spraying, Cost Decreasing and Efficiency Increasing