Effects of high specific resistivity dust on dedusting efficiency of electrostatic deduster were introduced briefly in this paper. Combining with the condition of limestone vertical kiln electrostatic deduster in our enterprise, some solutions for promoting the efficiency were discussed to provide references for standard discharge of dusty gas and application of electrostatic deduster.%主要阐述了高比电阻粉尘对电除尘器除尘效率的影响，以及结合我公司石灰石矿白灰竖窑电除尘器的分析，探讨了一些提高电除尘效率的解决办法，希望对使用电除尘器粉尘气体达标排放这一工作及攀钢相关厂、矿单位电除尘器的应用，提供一些有益的参考。
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