Patent ID: 7086405
Filing Date: 2006-08-08
Classification: B03B,B30B

Abstract:
1. A screenings washer, comprising: a hopper that collects screenings; a grinder coupled to said hopper downstream of said hopper, said grinder directly receiving the screenings collected by said hopper and grinding the screenings collected by said hopper; and a washer coupled to said grinder downstream of said grinder, said washer comprising: further comprising a control unit configured to control an operation of said screenings washer in a normal mode operation so that, when said control unit senses a signal indicating screenings are being fed to said screenings washer, said control unit causes said auger rotor to: (1) first, operate in a first forward sequence, in which said auger rotor rotates in a direction that transports the ground screenings towards the discharge end, for a first predetermined amount of time; (2) next, operate in a reverse sequence, in which said auger rotor rotates in a direction opposite to that of the forward sequence, for a second predetermined amount of time; and (3) next, operate in a second forward sequence, in which said auger rotor rotates in the direction that transports the ground screenings towards the discharge end, for a third predetermined amount of time.