26 
BULLETIX 927, U. S. DEPARTMENT OF AGElCULTURE. 
If the wet seed is to be dried at one central drying plant it would 
still be necessary to install at each pulping plant seed-separating 
cyclones. This wet seed after arriving at the drying center would 
be subjected to the operation of washing, expelling the moisture, 
and drying, the latter operation being conducted in rotary driers. 
Such a plant would operate 24 hours a day, handling the peak pro- 
duction of 50 tons of wet seed a day over a season of about 60 days. 
The following equipment would be necessary for a plant of this 
kind: 
Estimated 
cost. 
Conveyor to holding tank 
Tank and stirrer 
Piping to cyclones 
10 cyclones or tank and conveyor 
Conveyor to expellers 
4 moisture expellers 
Conveyor to driers 
5 driers *. ; $60,000 
Conveyor to bagging machine 
Bagging machine : 
Piping, shafting, etc 1 
Boiler and engine 
Freight and incidentals : 
Pump, traps, valves, etc_ 
Drilling well, etc 
70 cyclones at pulping stations, at $200 each $14,000 
70 pumps, at $50 each 3. 500 
Piping, freight, etc 10.000 
Incidentals 5, 000 
32, 50O 
Total cost of equipment for drying the seed at a central 
drying plant 92,500 
The cost of operation is estimated as follows: 
Labor (loading wet seed into cars) $1,600 
Depreciation of plant, at 10 per cent 9, 250 
Labor, per day, $159.20 (approximate cost), for a season 
of 60 days 9. 552 
Management (manager at $3,500, clerk at $1,200). three 
months 1, 175 
Power (500 tons of coal at $8 per ton) 4. 000 
Total 25. 500 
A summary of the costs of assembling and drying the seed at a 
central drying plant and at the several pulping plants is given in 
Table ixf 
After separating, assembling, and drying, the seed is ready for 
the extraction of the oil. The cost of this procedure will depend 
on the method of extraction employed, whether it be the expel ler or 
the solvent method. 
