the following is the parameter :

material outcome of burning of coal gangue ,before buring , it will be crush to about 15-50 mricon , bulk density is 900-1000kg/m^3,

anyone who have some expericences about the pneumatic conveying the different material?

now give the parameter of pneumatic conveying

horizontal length : about 500m and 14 bend,

bend: spheral shape, diameter is 250 mm,

diameter of the conveying pipeline is about 80mm and using step pipe 100mm in about 2/3 distance to pick-up , material of pipe is steel ,

system compose of fluidization of blow tank , top discharge ,

among 15m, 60m , 200m which distance to pick-up using by-pass air flow,

now i think the air flow is 5-7m^3/min, i want to find how to settle the wear of pipeline, especially in spheral bend,

who can give me some advice about conveying this material ?

thank you

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