Dust-collecting devices adopted, absorbing dust, preventing air pollution. 配置集尘装置，吸收粉尘，防止空气污染。
According to the principle of filte, dust granules in the ak are caught and collected into a collective cylinder. 依过滤原理将悬浮在空气中的灰尘粒子捕捉收集在一台集尘圆筒内。
The structure characteristics of the cyclone dust removers for gas stations were analysed,some retrofits were made for their inconvenience. 分析了煤气站用旋风收尘器的结构特点，介绍了针对其结构设计中的不足所作的一些有益改进。
