Critical Velocity for Horizontal Pneumatic Conveying with High Solids Loading at Low Gas Velocities
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摘要: 通過分析水平氣力輸送系統懸掛式電子稱量裝置的固體物料輸送量記錄曲線,判定了輸送狀態的穩定性.進而提出了中細顆粒(ds ≤ 0.5mm)、高混合比(μs=30~150)、水平低速(ug<15m/s)輸送臨界速度的經驗關聯式。Abstract: Instability of horizontal pneumatic conveying system was recognized through analyzing the wave of solid mass flowrate and pressure fluctuation during transportation of solids. Furthermore, an empirical correlation for critical conveying velocity of fine and medium size particles (ds<0.5mm) under high solids loading (range from 30 to 150) at low gas velocities less than 15m/s was proposed.
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Key words:
- critical velocity /
- pneumatic conveying /
- instability /
- low velocity /
- horizontal pipe/dense-phase
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