May we have your advise on the following application ...
--For Concrete making Batching plant
--Product under conveying .... Fly-ash [ BD 1.1 x Abrasive x Temp room [95 F] x moisture 2.5 to 5% x tendancy to form lumps of 1 to 4"*dia x offered from bags [100 lbs] ]
--Application .. Loading*material to Silo using Vertical Screws*& then discharge the same*from Silo bottom to Inclined Screw C/V for feeding it*Mixer
--Operations ... Capacity for Vertical Screw C/V is 10* TPH continuous & for Inclined Screw, it is 20 TPH in*cycles of 100 sec
--Silo...MS x*1/4" thk x 40 ft height from ground x*roof top x cylindrical height 17 ft*x conical height 4 ft*x three support legs x bottom opening 14" dia
--Vertical Screw c/v ... In three peices x segments of 16 ft*each x with feed Screw at ground x discharge at height 50 ft x manual feeding by slitting bags at ground hopper above Feed Screw
--Conveying problems ... Material flow from Vertical screws is dificult. The Vendor replaced Motor of*high ratings*but*discharged si up to 32 ft height with*difficulty. The*material*does not flow*also*from the chute at 30 deg angle in to Silo or from*the Silo-bottom to Inclined*Screw. The capacity for the operations declines to less than 40 %
May we seek your advise now for ...
--Is a Vertical Screw the right propostion as insisted by the client
--What is to be done to Silo for ensuring proper flow of materials
Our*suggestion now is*to feed material direct to the Mixer using an Enclosed Belt Conveyor!
May we have your response per return
Y* R BERDE
5 Fredun Terrace, 676 Katrak Road, Wadala