تحديد قطر جهاز فصل الدقيق و أبعاد منظم قفل الهواء تجريبيا لنظام نقل هوائي

Abstract EN

The research aims to Determine of Flour Separation device Diameter and Air-Lock valve Dimensions Experimentally for a Pneumatic Conveying System for transferring wheat flour, where cyclone and Air-¬Lock valve together fulfill productive capacity after design and implement a Pneumatic Conveying System using negative pressure system.

The system has been designed based on known design values, including minimum velocity to transfer flour by air (Cmin = 15 m/s), and the mass flow rate of flour { m = 4 tonne / hr }, and the total conveying distance, and physical properties of the flour particles such as particles density (pp = 1470 kg /m3) and size(dp = 90 µm).

Through the initial data, we calculated the design parameters including total pressure drop in the system (hptot = 40.85 kN / m 2 ), required pipeline diameter to transport flour (d = 0.08 m ), mass air flow rate {mª =0.11 kg / s }, power requirements of pneumatic conveying system (P =7.5 kW ), and other design parameters of whole pneumatic conveying system.

The above design has been successfully implemented at Al-Yarmouk Mill using local human resources.

Experimentally Determining the Diameter of Flour Separation device (D = 0.4 OT) and the Dimensions of Air-Lock valve (0.25*0.25 m) for a Pneumatic Conveying System.

Finally, experimental results have proven the Cyclone and air-lock valve fulfill productive capacity and compatible with the whole system.