MINIDREDGE Russian patent published in 2001 - IPC

FIELD: mining, particularly, complex devices for mining of placer deposits. SUBSTANCE: minidredge has floating hull, superstructure, power unit, screen, pebble pan, shallow and deep sluice boxes. Deep sluice box is located above nose part of minidredge ahead of bar screen installed on superstructure for vibration and is rigidly connected with power plant. Screen has removable grates, with lower edge of upper grates installed on upper edge of lower grates. EFFECT: reduced specific quantity of metal, power capacity and expenditures for mounting, higher efficiency of classification and disintegration of argillaceous sands. 2 cl, 1 dwg, 1 tbl