RU2160163C1 - Plant for recovery of flake gold - Google Patents

Abstract

FIELD: mineral gravity concentration, particularly, recovery of flake gold from rebellious sands and ores. SUBSTANCE: plant has straight inclined trough with coating and riffles. Installed along trough bottom is pocket with deflector plate. Riffles are made of two parts, one of which is located at angle to trough bottom, and the other is parallel to bottom. Said parts are installed to form slots between them which are perpendicular to pulp flow. EFFECT: higher recovery of fine and flake gold. 5 dwg

Description

 The invention relates to the field of gravitational mineral processing and can be used to extract plate gold from refractory fine and coarse sands and ores.

 A known installation of the lock type for the primary enrichment of placer sand, containing straight gutters with cutoffs (RF Patent N 2089295, publ. 10.09.97).

 This installation does not provide for the efficient capture of gold from refractory sands and ores.

 The closest in technical essence and purpose is the installation for the extraction of plate gold containing a straight inclined trough with a coating (RF Patent N 1422455 C, publ. 30.09.1994, B 03 B 5/26, 5/70).

 This installation does not provide effective extraction of plate and fine gold.

 The purpose of the invention is to increase the efficiency of extraction of plate and fine gold in the processing of refractory sands and ores.

 This goal is achieved in that the installation for the extraction of plate gold, containing a rectilinear inclined trough with a coating, is equipped with stencils made of two parts, one of which is located at an angle to the bottom of the trough, and the second is parallel to the bottom, and the stencils are installed with the formation of slit-like gaps between by itself, and slit-like gaps are oriented perpendicular to the direction of flow of the pulp, while the bottom is equipped with a pocket with a visor located along a straight inclined gutter.

 The design of the proposed technical solution with plate-type stencils having one plane located at an angle to the bottom of the straight inclined trough and forming a gap with the other plane allows you to direct the upper part of the stream down to the coated bottom, thereby preventing the drift of "floating" gold.

 Installation for the extraction of plate gold is shown in the drawings.

 In FIG. 1 - general view of the installation; in FIG. 2 is a view A in FIG. 1; in FIG. 3 is a view of a plate stencil; FIG. 4 - fastening of plate stencils to the board of a straight inclined trough; FIG. 5 - board rectilinear inclined trough from the side of the pocket.

 The apparatus for extracting plate gold includes a straight inclined chute 1 with a coating of 2 and cliches 3. The cliches 3 are made of plate, consisting of two parts 4, 5 of a paired type. The first part 4 is located at an angle 6 to the bottom 7, the second part 5 of the stencil 3 is parallel to the bottom 7. Part 4 of the stencil 3, following the previous stencil 3, comes from below, forming slit-like gaps 8, oriented perpendicular to the flow direction 9 of the pulp. The bottom 7 is made inclined laterally 10 to the pocket 11 with a visor 12. The pocket 11 and the visor 12 are located along a straight inclined groove 1 in the direction of flow 9 of the pulp. The side 10 has a side 13 with cutouts 14 for the receipt of thin "floating", suspended particles of heavy minerals in the pocket 11 and for installing the L-shaped mount 15 stencils 3. The L-shaped mount 15 stencils 3 made in the form of flat plates with a bend at the end 16, which is welded perpendicularly to part 5 of the stencils 3 from two sides. Stencils 3 can be freely installed on the sides 13, 17 and removed. Fixing in the right place on the sides 13, 17 is made by the welded stops 18.

 Installation for the extraction of plate gold works as follows.

 The enriched material in the desired ratio of water to solid enters the upper part of the rectilinear inclined groove 1 with coating 2 and cliches 3. Lamellar cliches 3 made of two parts 4, 5 are fixed on the sides 13, 17 with an L-shaped mount 15 in the form of flat plates with bending at the end 16, stops 18, allow you to direct the upper layer of the stream with "floating", lamellar and small gold down through the slit-like gaps 8 to the coating 2 on the bottom 7. The second part 5 of the stencil 3, parallel to the bottom 7, of each subsequent stencil 3, let It makes it easy to slide a part of the stream 9 from above, where it is again divided: one part of it flows through a narrow slit-like gap 8, oriented perpendicular to the direction of the pulp stream 9, down, the other part of the stream 9 continues to move to the next stencils 3, again being divided into parts. The angle 6 of part 4 of the stencil 3 ensures that heavy particles get on the coating 2.

 To reduce the drift of plate gold in the direction of the main stream 9, the inclination of the bottom 7 to the side 10 to the pocket 11 with the bead 13 and cutouts 14 allows you to direct part of the heavy plate fractions into the pocket 11.

 The visor 12 guides and prevents particles of gold from entering the flushing zone on the bottom 7.

 The installation allows you to increase the extraction of plate "floating" gold from refractory placers and ores.

Claims (1)

 Installation for the extraction of plate gold containing a straight inclined gutter with a coating, characterized in that the gutter is equipped with plate stencils made of two parts, one of which is located at an angle to the bottom of the gutter, and the second is parallel to the bottom, and the stencils are installed with the formation of slit-like gaps between by itself, and slit-like gaps are oriented perpendicular to the direction of flow of the pulp, while the bottom is equipped with a pocket with a visor located along a straight inclined gutter.

Images