SU1333420A1 - Apparatus for dressing sand/gravel materials - Google Patents

Description

On adjustable lengths 10, concentric rings 11 with a rounded lower edge are suspended so that each male ring is displaced downwardly relative to the female one. The slurry through the tangential nozzle 2 enters K I and twists. Under the action of centrifugal force, the gravel particles are thrown against the wall K 1, braked by the plates 5, lowered along the grooves into the conical part K I and further to the outlet nozzle 3. Thanks to the background, the Invention relates to the technique of non-metallic sand-gravel mining with hydro-mechanized mining and be used in the mining, mineral processing and other industries of the industry.

The purpose of the invention is to increase the efficiency of enrichment and reliability,

Figure 1 shows an apparatus for enriching sand and gravel materials, a general view; figure 2 - section aa in figure 1.

The apparatus contains a cylindrical body 1 with a tangential inlet, a nozzle 2, an output nozzle 3 for a condensed product located in the lower conical part of the body 1, and an output nozzle 4 for draining located in the upper part of the body 1. On the inner wall of the body 1 vertically mounted the ribs, each of which is made in the form of two removable plates (cutting 5 and baffling 6) with grooves 7 installed with the possibility of rotation relative to the walls of the housing, Concentric to the outlet 4 in the cavity of housing 1 There is a cylindrical shell 8 with a height from the cover of the housing of the apparatus to the beginning of the conical part of the housing with a fairing 9 in its lower part, which is convex to the wall of the housing of the apparatus. Concentric rings with a rounded lower edge are suspended on the adjustable length 10 tons, while the rings are placed with mixing relative to 33420

niche plates 5 and 6 with gutters of stagnant zones reduce the abrasive effect of gravel particles on the walls of the apparatus. In the lower conical part of the aprarat the flow goes around the fairing 9 and is divided into several layers by rings 1. Adjustment of separation indices in the apparatus of the os: separates by relative movement of the rings II tons 10 and rotation of the plates 5 and 6 relative to the walls K 1 to create optimal braking zones for the peripheral layer of the flow, 2 sludge.

but each other in height so that each male ring is shifted downward relative to the female one. Sandblasting machine

gravel materials works as follows.

The slurry through the tangential nozzle 2 enters the housing I and, due to the cylindrical shell 8, moves along a descending helix to the beginning of the conical part. Under the action of centrifugal force, the gravel particles are forced out into the peripheral flow layer, braked by the slam-shut plate 5, along the grooves 7 they fall into the conical part of the apparatus and further to the outlet nozzle 3. Due to the formation of the plate 5 with the grooves 7 of the stagnant zones, the abrasive effect of gravel particles on the walls of the apparatus. In the place of the gravel particles, isolated from the peripheral layer of the plate 5, new gravel particles arrive from the central layers of the flow. The baffle plates 6 protect the corresponding parts of the wall C of the apparatus from the gravel particles moving at high speed, and by their troughs 7 also stagnant zones, which contribute to additional product deposition. With the fender plates 6, the peripheral layer, saturated with a new portion of the product from the central layers,

enters the next downstream zone formed by the next plate 5 with grooves 7. In this zone, the gravel particles are also braked and lowered

they go down to the discharge pipe 3. The described process takes place along the entire length of the helical trajectory of the slurry stream. In the lower conical part of the apparatus, the flow envelops the fairing 9 and is divided into several layers by rings I1, each

the layer moves along an arc in a vertical plane. Additional separation into layers of the slurry stream in the conical part of the apparatus is provided by adjusting the position of the coils I1 to 10. In order to completely eliminate the removal of the useful product into the discharge, the distance from the lower end of the outlet nozzle 4 to the lower edge of the additional cylindrical wall is recommended to be larger than two diameters of this nozzle. When it is necessary to change the size of the boundary fraction, the plates are rotated relative to the walls of the apparatus to create optimal zones of braking of the peripheral flow layer.

Thus, the use of the apparatus allows for the effective sanding of the sand-gravel mixture and extending its service life by sequentially separating and braking the gravel particles from the peripheral layers of the saturated slurry.

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An apparatus for enriching sand-gravel materials containing a cylindrical conical body with a tangential inlet and outlet nozzles for draining and condensed product, fins mounted vertically on the inner surface of the casing wall, characterized in that, in order to increase the enrichment efficiency and reliability, it is equipped with cylindrical shell with a fairing, rings with rounded lower edges and drafts of adjustable length, on which the rings are mounted, and each edge is made of two 3 X X plates with grooves, rotatably relative to the housing walls, with this cylindrical shell and rings arranged concentrically, the shell is located between the discharge pipe and the wall of the case, and its lower section, on the outer surface of which the fairing is installed, conical, with the rings placed offset relative to each other in height.

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Compiled by D. Baranov Editor M. Petrova Tehred M. Khodanych Proofreader E. Roshko

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Order 3901/9 Circulation 516 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

Claim An apparatus for the enrichment of sand5 gravel materials, comprising a cylindrical conical body with tangential inlet and outlet nozzles for discharge and condensed product, 1 rib mounted vertically on the inner surface of the housing wall, characterized in that, in order to increase the enrichment efficiency and reliability, it is equipped with a ^ 5 cylindrical shell with a cowl, rings with rounded lower edges and rods of adjustable length, on which the rings are mounted, and each the rib is made of two plates with grooves mounted to rotate relative to the walls of the housing, while the cylindrical shell and rings are concentric, and the shell 25 is located between ubkom drain and the housing wall, and its lower section on the outer surface of which is mounted fairing located at the transition of the cylindrical portion sequential isolation and deceleration _W of the housing in a conical, wherein the ring zheniya gravel particles from the peripheral arranged offset with respect GOVERNMENTAL layers of saturated slurry. each other in height.