If a rotary valve or a screw conveyor is fitted make sure that dust hopper has emptied.
如果安装了旋转阀或螺旋传送机，要确认集尘斗已清空。
In this paper, there are two methods used to improve the dust hopper structure of cyclone separator.
试验采用两种方法对旋风分离器的灰斗结构加以改进。
Adjust the precipitator hopper discharging operation, to prevent excessive dust accumulation form vortex wear bag.
调整除尘器灰斗卸灰作业，防止粉尘堆积过高构成涡流磨损滤袋。
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