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Silt of Yellow River Separating Based on Drip Irrigation |
XIN Zhou |
College of Mechano-Electronic Engineering, gansu Univ. of Tech., Lanzhou 730050, China |
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Abstract Aimed at the problem of silt separation of Yellow River’s water for agricultural drop irrigation. The major characteristics of silt in Yellow River and the applying of Hydrocyclone separation technique for silt separation are introduced. The key constructional parameters of Hydrocyclone are calculated by Rietema formula. And critical separation size d ep is checked based on the theory of Bredley equilibrium orbit. A series of experiments are carried out as to how the centrifugal separation is effected by key factors such as sediment concentration,i nlet pressurea nd undersetg ate diametere tc. Ther esultss howt hat,t hes ediment concentration ofY ellowR iveri ncreases, concentration ato utgateh eightens, clarifyingr ated ecreases, ands eparation effect declines;i nletp ressurei ncreases,c oncentrationa to utgate decreases,c oncentrationu ndersetg atee nhances, clarifyingr ateh eightens, ands eparation effect heightens;u nderset gated iameter minishes,c oncentrationa t outgate increasess lightly, concentration atu ndersetg atei ncreasess harply, clarifyingr ated ecliness lightly, bute ffectives eparationq uantityd ecreasess harply, ands eparatione ffect declines.
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Received: 08 August 2013
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