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

摘要： 通过实验室水模实验得出了添加脱硫剂最佳方式为喷吹方式，加上生产过程采取脱硫喷粉枪角度接近90°、喷粉枪相对高度为500 mm、脱硫剂的喷射点为1/2半径以内区域、脱硫剂的粒度不超过2 mm、喷吹速度为130～150 kg/min、粉气比为75 kg/Nm³、高速搅拌时间4～6 min等措施，解决了实际生产过程中存在的喷吹过程管道堵料、喷溅以及脱硫收得率不稳而造成脱硫效率低等问题，使得喷吹脱硫的优势充分发挥。相比较于批量添加（重力）的方式，节约脱硫剂可以达到25%。

关键词: KR脱硫, 喷粉脱硫, 降本增效