Conveyors: fluid current – With adjunctive substance added – Liquid
Patent
1985-08-02
1987-08-11
Nase, Jeffrey V.
Conveyors: fluid current
With adjunctive substance added
Liquid
406109, 406120, 406175, 406197, B65G 5330
Patent
active
046858407
ABSTRACT:
A method of transporting large diameter solids, such as coal having a diameter of greater than 1 inch, preferably eight to twelve inches, predicated on pipe diameter, in the form of a slurry through a pipeline is disclosed. The method comprises the step of placing large diameter solids in a vehicle and pumping it through a pipeline. The specific gravity of the vehicle is substantially equal to the specific gravity of the solids so that the coal remains in suspension over a wide range of pipeline velocities. A lubricant is added to the vehicle to reduce friction and enhance energy efficiency of the process. The coal is pumped from a pumping tank into which the solids and vehicle are introduced, the pumping tank, after filling, is pressurized with a fluid such as air or inert gas to propel the mixture through the pipeline. This pump and its valving allows large diameter solids to be pumped through the pipeline. The large diameter of the solids reduces the apparent viscosity of the slurry to greatly reduce friction and further enhance energy efficiency.
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