Apparatus for cleaning particulate material

Apparatus for cleaning particulate material, comprising:

• a hopper including at least one sidewall and a bottom wall defining a chamber adapted to receive particulate material to be cleaned;
• a tubular riser situated within said chamber having a lower end situated proximate to said hopper bottom wall and an upper end;
• liquid nozzle means situated proximate to said lower end of said riser adapted to be coupled to a source of liquid under pressure for directing a liquid jet into said riser, said nozzle means being spaced at least a slight distance from said lower end of said riser to define an agitation zone therebetween;
• and
• means for discharging liquid from said hopper chamber, said liquid discharging means comprising an overflow weir provided at an upper end region of said hopper, and discharge pipe means communicating with said overflow weir, whereby when the liquid reaches a certain level in said upper chamber, the liquid overflows over said weir into said discharge pipe means,
• whereby a portion of particulate material charged into said hopper chamber becomes situated in said agitation zone and upon operation, a liquid jet directed from said nozzle means impinges against the particulate material in said agitation zone to separate dirt therefrom and carries said particulate material into and through said riser.

Apparatus for cleaning particulate material, comprising:

• a hopper including at least one sidewall and a bottom wall defining a chamber adapted to receive particulate material to be cleaned;
• a tubular riser situated within said chamber having a lower end situated proximate to said hopper bottom wall and an upper end;
• liquid nozzle mean situated proximate to said lower end of said riser adapted to be coupled to a source of liquid under pressure for directing a liquid jet into said riser, said nozzle means being spaced at least a slight distance from said lower end of said riser to define an agitation zone therebetween;
• and
• a cover for closing an upper end of said hopper chamber, said cover having an inner surface spaced from said upper end of said riser and including at least one baffle surface whereby by particulate material-carrying liquid impinges against said baffle surface to further spearate dirt from said particulate material,
• whereby a portion of particulate material charged into said hopper chamber becomes situated in said agitation zone and upon operation, a liquid jet directed from said nozzle means impinges against the particulate material in said agitation zone to separate dirt therefrom and carries said particulate material into and through said riser.

Apparatus for cleaning particulate material, comprising:

• a hopper including at least one sidewall and a bottom wall defining a chamber adapted to receive particulate material to be cleaned;
• a tubular riser situated within said chamber having a lower end situated proximate to said hopper bottom wall and an upper end;
• liquid nozzle means situated proximate to said lower end of said riser adapted to be coupled to a source of liquid under pressure for directing a liquid jet into said riser, said nozzle means being spaced at least a slight distance from said lower end of said riser to define an agitation zone therebetween;
• and
• means for adjustably mounting said tubular riser in said hopper chamber, whereby said distance by which said lower end of said riser is spaced from said nozzle means is adjustable,
• whereby a portion of particulate material charged into said hopper chamber becomes situated in said agitation zone and upon operation, a liquid jet directed from said nozzle means impinges against the particulate material in said agitation zone to separate dirt therefrom and carries said particulate material into said through said riser.

Apparatus for cleaning particulate material, comprising:

• a hopper including at least one sidewall and a bottom wall defining a chamber adapted to receive particulate material to be cleaned;
• a tubular riser situated within said chamber having a lower end situated proximate to said hopper bottom wall and an upper end;
• liquid nozzle means situated proximate to said lower end of said riser adapted to be coupled to a source of liquid under pressure for directing a liquid jet into said riser, said nozzle means being spaced at least a slight distance from said lower end of said riser to define an agitation zone therebetween;
• and
• a pipe having one end adapted to be coupled to said upper end of said tubular riser,
• whereby a portion of particulate material charged into said hopper chamber becomes situated in said agitation zone and upon operation, a liquid jet directed from said nozzle means impinges against the particulate material in said agitation zone to separate dirt therefrom and carries said particulate material into said through said riser whereupon after the particular material in the hopper chamber has been cleaned, one end of said pipe is coupled to said upper end of said tubular riser for receiving clean particulate material from the upper end of said riser and carrying the material away from said apparatus.