| 摘要 |
FIELD: concentration of minerals; gravitational concentration of auriferous placers. ^ SUBSTANCE: proposed lock includes loading and unloading devices and body with bottom consisting of two planes in form of chutes at angle smoothly decreasing from loading device to loading one. Chute is inclined at angle relative to level and is provided with system of partitions located at angle relative to horizontal axis of chute. Partitions form longitudinal compartments together with plates which are mounted in parallel relative to axis. Each partition is provided with aperture above bottom. Section of this aperture decreases with motion of mineral mass towards unloading device (from one partition to another); control is effected by means of gate. For control of water condition, additional water supply units are mounted. ^ EFFECT: enhanced efficiency of separation. ^ 3 dwg |
