Method of cleaning ballast

Details Method of cleaning ballast Method of cleaning ballast

2006-07-25

2006-07-25

Carrillo, Sharidan (Department: 1746)

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

C134S018000, C134S025100, C134S025500, C134S026000, C134S032000, C134S034000, C134S036000, C134S042000, C210S800000

Reexamination Certificate

active

07081170

ABSTRACT:
A method of cleaning encrusted ballast comprises the steps of screening the encrusted ballast to separate detritus from the ballast, washing the screened ballast with water while removing the separated detritus on a conveyor belt unit, clarifying the washing water to produce a clarified water portion and washing water sludge, and disposing of the washing water sludge by moving it to the detritus on the conveyor belt unit for common removal with the detritus.

REFERENCES:
patent: 4595506 (1986-06-01), Kneer
patent: 4635664 (1987-01-01), Theurer et al.
patent: 4938239 (1990-07-01), Theurer et al.
patent: 6427704 (2002-08-01), Bleeker
patent: 2002/0088758 (2002-07-01), Blumenschein et al.
patent: 2004/0011383 (2004-01-01), Theurer et al.
patent: 1 519 316 (1978-11-01), None

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