摘要
为了探究烧结管滤筒除尘器的清灰性能,在自建的洁净脉冲喷吹实验平台上,测得不同脉冲喷吹条件下,塑烧滤筒的侧壁压力峰值。通过进一步的工业附粉实验,监测除尘器的运行阻力和清灰后的粉尘残余量,验证得出塑烧滤筒除尘器清灰参数最优组合。结果表明,塑烧滤筒的最优清灰参数为:喷吹压力0.3 MPa,喷吹孔径10 mm,喷吹高度160 mm,对应塑烧滤筒上、中、下3个测点的侧壁压力峰值分别为5 032、5 230、5 877 Pa;在最优清灰参数下对于磷酸铁锂粉体,粉尘浓度为50 g·m^(-3)时,当过滤风速从0.6 m·min^(-1)增大至1.4 m·min^(-1),系统稳定运行阻力随之增大,清灰效率随之减小;粉尘浓度从25 g·m^(-3)增大至100 g·m^(-3),清灰效率随之减小;随着粉尘粒度D_(50)的增大,清灰效率随之提高。实验结果对塑烧滤筒除尘器的工业使用推广具有工程技术指导作用。
To examine the dust cleaning performance of a sintered filter cartridge,the peak value of the side wall pressure of the sintered filter cartridge was measured on a self-constructed clean pulse-jet blowing test platform.The resistance of the dust collector during operation and the amount of dust after dust removal were observed in additional experiments,which led to the identification of the optimal combination of dust removal parameters.The results indicated the optimal parameters for ash removal were as follows:the injection pressure was 0.3 MPa,the injection diameter was 10 mm,and the injection height was 160 mm.The peak lateral pressure values at the three measuring points on the upper,middle,and lower parts of the sintered filter cartridge were 5032,5230,and 5877 Pa,respectively.Under the optimal cleaning parameters for lithium iron phosphate powder,when the dust concentration was 50 g·m^(−3),increasing the filtration wind speed from 0.6 m·min^(−1) to 1.4 m·min^(−1) results in an increase in the stable operation resistance of the system and a decrease in cleaning efficiency.The dust concentration increased from^(2)5 g·m^(−3) to 100 g·m^(−3),and as a result,cleaning efficiency decreased.As the D50 size of dust particles increased,the cleaning efficiency improved.The experimental results can provide engineering guidance for the industrial application and widespread use of sintered filter cartridge dust collectors.
作者
王云端
敬杰
毛文浩
李杨
彭语嫣
黄琬岚
张明星
WANG Yunduan;JING Jie;MAO Wenhao;LI Yang;PENG Yuyan;HUANG Wanlan;ZHANG Mingxing(Key Laboratory of Solid Waste Treatment and Resource Recycling,Ministry of Education,School of Environment and Resources,Southwest University of Science and Technology Mianyang 621010,China)
出处
《环境工程学报》
CAS
CSCD
北大核心
2024年第6期1652-1661,共10页
Chinese Journal of Environmental Engineering
基金
浮法玻璃新技术国家重点实验室开发基金项目(2018KF04)。
关键词
塑烧滤筒
脉冲喷吹
清灰性能
sintered filter cartridge
pulse-jet
dust cleaning performance
