Process for grind-drying wet solid fuel

Details Process for grind-drying wet solid fuel Process for grind-drying wet solid fuel

1982-09-16

1985-02-12

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 62, 241 81, B02C 1912

Patent

active

044986327

ABSTRACT:
In a process and apparatus for grinding and drying a solid fuel such as brown coal or lignite to form dust, in a fan type mill, in the presence of a hot drying gas with a low oxygen content, fine components of the fuel in dust form are separated out before the grinding step and dried. The remaining coarser portion of the fuel is introduced into the drying gas before the grinding step, in dependence on the grain size and moisture content of the fuel. The fuel is sifted or sieved before it is introduced into the mill and after the grinding operation, with the components which are not sufficiently fine then being recycled to the grinding operation, the recycled components being introduced into the circuit after the fresh fuel has been introduced.

REFERENCES:
patent: 1576335 (1926-03-01), Kreisinger
patent: 3606173 (1971-09-01), Rowland, Jr.
patent: 4389019 (1983-06-01), Adrian et al.

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