风机技术文章 关键词：离心式鼓风机；平衡鼓；叶轮；损坏原因；措施 [gap=413]Key words: centrifugal blower; balancing drum; impeller; damage reason; measures
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转子部分由轴、中轮、平衡鼓等组成。
The rotor part is composed of shaft, middle wheel and balancing drum etc.
平衡鼓和交叉流道的轴向间隙为入口小、出口大的锥形 结构，防止被流经间隙的砂子阻塞；
The axial gap of the balancing drum and a cross channel is a cone-shaped structure with a small entrance and large exit and can prevent from being obstructed by sand flowing through the gap;
针轮能够自我调节动平衡、启动快、负荷小，振动、噪声也比转鼓过滤离心机低。
The bristle assemblies are able to adjust themselves to moving equilibrium, can start up very quickly and run under smaller load and with less oscillation and noise than a drum.
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