矿用干式除尘器滤筒组均量滤脱尘设计

Design of dust removal of dry dust collector for mine

筒式除尘器广泛应用于煤矿粉尘作业场所,具有单位体积过滤面积大、除尘效率高、运行阻力低等优点;筒式除尘器中,滤筒是用于滤尘的核心部件,其滤尘与脱尘的效果是影响除尘器性能的关键因素。根据国内外对筒式除尘器喷吹管的试验研究所得的经验公式,对滤筒清灰系统喷吹管进行了各孔口近均量出流设计,以实现对各滤筒清灰风量趋于相等,消除因各喷口喷吹风量不等导致的各滤筒清灰效果不同,防止清灰强度相对较弱的滤筒因清灰不净积尘糊筒大幅降低滤尘功能。

Drum type dust collector is widely used in coal mine dust workplaces.It has the advantages of large filtration area per unit volume,high dust removal efficiency and low running resistance.In the cartridge dust collector,the filter cartridge is the core part for dust filtering,and its dust filtering and dedusting effect is the key factor affecting the performance of the dust collector.In this design,based on the empirical formula obtained from the experimental research of the spray pipe at home and abroad,the near average flow design of each orifice is carried out for the spray pipe of the filter cartridge ash removal system,so as to achieve the equal ash removal air volume for each filter cartridge,eliminate the different ash removal effects of each filter cartridge caused by the unequal air volume at each nozzle,and prevent the filter cartridge with relatively weak ash removal strength from greatly reducing its dust filtering function due to the dust accumulation and paste.