Patent ID: 6953123
Filing Date: 2005-10-11
Classification: B01D,B03B

Abstract:
1. Apparatus for the pre-separation of hydrous slurry feed in a hindered-bed separator comprising a hindered-bed separator for classifying feed material in a hydrous slurry feed of fines and heavies said separator having an elongated body with an upper part, a middle part and a lower part and a top and bottom defining an interior space with upper, middle, and lower portions, said separator including an overflow launder adjacent said top of said body, a teeter water distributor for introducing teeter water into said lower portion of said interior space and directing water therefrom upwardly into said middle part and thence through said upper part, an elongated feed well for pre-classifying feed material to remove fines from heavies prior to entering into said separator body, said feed well including a housing having an upper portion and a lower portion defining an interior space between an open top and an open bottom an attachment for mounting said housing of said feed well generally spaced equally away from and in said upper portion of said interior space of said body of said separator, an overflow weir mounted adjacent said top portion of said housing adjacent said overflow launder for directing flow of water containing fines through said open top over said weir and into said overflow launder, and a slurry introducer for directing a hydrous slurry feed into said upper portion of said interior space of said feed well and exiting said feed well into said separator at said bottom of said feed well.