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目前,建筑和石油部门广泛使用的气动下灰车(以下简称下灰车)是采用气压输送原理进行水泥的装、卸。主要由空压机、灰罐、蝶阀、输灰管线和储灰罐(或仓库)等组成,如图1所示。也可作为固定装置用以输送其它粉状物料。工作过程是装载灰料的下灰车,到达卸料场地后,接好管线,关闭蝶阀、开动空压机向灰罐内充气。充入的气体与罐内灰料充分混合,当罐内压力达到额定值时,开启蝶阀——称为
At present, the pneumatic undercarrying (hereinafter referred to as the undercarrying) widely used in the construction and oil sectors is used for loading and unloading cement by the principle of pneumatic conveying. Mainly by the air compressor, ash cans, butterflies, ash pipelines and storage tanks (or warehouse) and other components, as shown in Figure 1. Can also be used as a fixed device for conveying other powdery materials. Working process is to load the gray car under the ash, arrived at the unloading site, then a good pipeline, close the butterfly valve, start the air compressor to the gray tank inflatable. The gas filled is well mixed with the ash in the tank, and when the tank pressure reaches the rated value, the butterfly valve is opened -