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當前位置:首頁>專題>負壓氣力輸送

負壓氣力輸送

負壓氣力輸送

負壓氣力輸送采用負壓羅茨泵作為動力源,管道輸送壓力量低真空狀態,管道風速約10-35/秒,物料在管道里呈霧狀。在該系統的開始端約有10m/s的加速度,在末端可達30m/s的高速,因此氣流速度較高。輸送管線初端壓力與大氣壓基本接近,而末端則一般在-0.01-0.06mpa之間。負壓稀相氣力輸送系統啟動時,存放容積內的物料經回轉鎖氣供料閥的定量供給,在管路內與羅茨真空泵產生的負壓氣流相混臺后得到加速,固氣二相流在輸送管內用成較穩定的流態并被提升至遠處的一體式過濾分離器中,氣流與物料的混合體在進入到旋風分離器壁后被強制改變運行軌跡,由于固體物料的密度比氣體的密度大得多,因而產生了很高的高心力,使得物料在進入筒壁后失去了直線運動的速度,在重力作用下落入旋風分離器的錐體部,再通過錐體部的回轉鎖氣卸料閥因均勻給料至下游的生產設備,負壓稀相系統的動力源采用羅茨真空泵,氣體可以為過濾后的大氣或經過干燥凈化處理的氣體。上述物料的傳輸均為全密閉輸送方式.

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