Coal slurry pipelining

Details Coal slurry pipelining Coal slurry pipelining

1978-04-26

1980-02-05

Rowland, James L.

Conveyors: fluid current

Processes

B65G 5330

Patent

active

041870441

ABSTRACT:
A method for preparing industrial ores, e.g., coal, for pipelining and pipelining the ores to a site for subsequent processing or use.
Ore from a mine is screened into two fractions, one having a large size particle distribution and one having a small size particle distribution, each fraction retaining both the ore and the refuse. The large size particle fraction is cleaned of refuse and the clean ore therefrom crushed to a size distribution of the smaller size or small size ore fraction. The separated refuse from the large size particle fraction is ground to provide superfines to the extent required for the proper particle size distribution for pipelining. The ore and superfine refuse are combined in a water slurry for pipelining.
After pipelining the ore, the ore is cleaned and dewatered conveniently as known in the art for fine ore. The resulting ore may then be stockpiled or directly used.

REFERENCES:
patent: 2920923 (1960-01-01), Wasp et al.
patent: 3168350 (1965-02-01), Phinney et al.
patent: 3637263 (1972-01-01), Wasp
patent: 3719397 (1973-03-01), Wasp

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