Bulk shipment maximum

It is presumed that the product(s) to be produced is (are) known. The size of the containers it will be shipped in depends on the size of the expected orders, the facilities the customer has for handling the materials, and the hazardous classification of the material. Material shipped in bulk quantity is cheaper than packaged items, but it requires the customer to have more elaborate unloading and storage facilities. Bulk shipping is only used when large amounts are purchased at one time. Union Carbide will not ship in bulk less than 40,000 lb (18,000 kg) of material. Table 3-2 gives a summary of the maximum bulk shipments possible by various carriers. 

Since the packaging units will only operate about 35 horns a week, the system must be able to handle at least 0.60 (168 hr/35 hr) x 18,050 = 52,000 lb/hr. Assume it must handle 70,000 lb/hr. This rate will also allow the bulk shipment hoppers to be filled in 3 hr, which seems reasonable. The largest pressure drop will occur in transferring material to the railroad storage hoppers. The horizontal length will be a maximum of 500 ft and the vertical distance 100 ft. A pressure system will be used. The results of the calculations for blowers B-605 and B-606 are LHP = 45 BHP = 125 and the power = 26.4 kw. 

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