SELF-UNLOADING SLUICE Russian patent published in 1999 - IPC

FIELD: mining machinery and equipment. SUBSTANCE: this can be used for development of placer deposits in coastal surfing zone. Self-unloading sluice has trough with apron and catching coating which is made in the form of mineral bed. Also provided is concentrate receiving bin. Secured under sluice trough is intermediate bin which is made in the form of additional trough of sluice. Space of this additional trough is separated from space of intermediate bin by shutter gate which is made in the form of strip with holes. Shutter gate is located in contact with sluice trough bottom with possible displacement relative to it. Discharge hole of intermediate bin is connected with space of receiving bin. Receiving hole of intermediate bin is provided with removable cover. Aprons are installed over length of sluice. Dimensions of holes in shutter gate and in sluice trough bottom are equal to each other and to distances between them over sluice length. Dimensions of holes are larger than maximal dimensions of particles which are retained by sluice. Sluice trough is covered atop by roofing. Dimension of this roofing in plan correspond to dimensions of sluice trough. Used as removable cover of intermediate bin is free end of shutter gate which protrudes beyond length of sluice. Receiving hole of intermediate bin is located in common plane with lower surface of shutter gate. Aforesaid embodiment of self-unloading sluice allows for simplification and acceleration of sluice flushing process together with high efficiency in catching mineral component. EFFECT: higher efficiency. 4 cl, 5 dwg