Method for the production of a coal suspension

Details Method for the production of a coal suspension Method for the production of a coal suspension

1986-03-17

1988-06-28

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

241 16, 241 29, 241 41, 241 42, 241 43, 241 62, C10L 132

Patent

active

047536608

ABSTRACT:
The invention relates to an apparatus and method for producing a free flowing coal suspension high in solids content. The coal is ground in at least two stages utilizing a mill having a calibrating effect in one stage and a mill without calibrating effect in another stage and adding a sub-quantity of viscosity reducing additive to the coal before each grinding. A drying of the coal or reconcentration of the suspension is not required. A roller mill operating on the principle of materials bed comminution is preferred as the non-calibrating mill in the first grinding stage and a rotating drum mill or a vibration grinding mill with rods as grinding bodies is preferred as the calibrating mill.

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patent: 4613084 (1986-09-01), Takamoto et al.

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