water services drawing

Measures such as U-shaped water distributing device and interval dust washing-away were taken to remove dirt at water and vapour interface of flue pipe.

采用加装U型布水装置和采取间歇性用水冲刷灰垢的措施,解决了烟道内壁水、气界面处的结垢问题,替换了人工除垢,且烟尘排放浓度达到了环保要求,其回收的烟尘通过外销又取得了经济效益。

The article introduces the basic idea and principle for the CAD system's design of the shaft fan's installation drawing in the coal mine.

文中介绍了煤矿用轴流式通风机设备安装布置图CAD系统设计的基本思想与原则，详细说明了图块的分解、绘制以及总图组装等问题。