SU1699607A1 - Apparatus for the concentration of minerals - Google Patents

Abstract

This invention relates to the beneficiation of minerals. The goal is to increase the efficiency of enrichment. The device contains a cylindrical hydrocyclone (HZ) 1, an additional cylindrical HZ 2 and an unloading chamber 3- Tangentially to the cylindrical case (a feed nozzle (P) is installed 5. Along the K axis is installed a drain П with an unloading chamber 7. With an annular ledge 8 in the lower part K sand tangentially P 9, with which HZ 2 is conjugated, containing an additional cylindrical K 10, additional drain P 11 with a discharge chamber 12 and tangentially conjugated peskovy P. with a ring shoulder 13 13 P I. Under HZ;: coaxially with its P 11, a vortex chamber 15 is installed with a tangential inlet I 16. The inner diameter of chamber 16 is from 1.0 to 1.2 diameters of P 11, and the height of chamber 15 is less than or equal to the diameter of P 11 The initial power through P 5 is supplied to C C. Under the action of centrifugal force, heavy particles are thrown against the wall of HZ I and are transported by external downward flow to the ledge 8. The latter sharply deflects the near part of the flow, creating a circulating vortex flow that cleans up the near-wall product. Light particles are transported by an internal ascending stream to the P 6 and discharged through the chamber. In HZ 2, food is supplied through P 9- The enrichment process in HZ 2 is similar. A suspension of the initial density is fed into the chamber under pressure exceeding the inlet pressure. The twisted suspension enters the axial trap of the internal upward flow 2 in the direction of rotation, which increases the speed of the internal flow and the quality of separation. The sands through П 1 enter chamber 3f from where they are unloaded. Drain through P 11 is supplied for unloading in K 12. 2 Il. from 1C to c & Soo soo o

Description

The invention relates to the enrichment of minerals, namely the separation of materials according to density in a centrifugal field, and can be applied in coal preparation plants, ore dressing plants.

plants and other industries.

The purpose of the invention is to increase the efficiency of enrichment.

1 shows an apparatus for mineral processing, a general view; figure 2 - section aa in figure 1.

The device includes a cylindrical hydrocyclone 1, an additional cylindrical hydrocyclone 2 and a discharge chamber 3. The hydrocyclone 1 includes a cylindrical body (the tangential supply nozzle 5 located along the axis of the body k drain pipe 6 with the unloading chamber 7, an annular ledge 8 in the lower suit of the body k and tangentially sandy conjugate with annular ledge 8. nipple 9-- Additional hydrocyclone 2 adjoins Peskovy nozzle S of hydrocyclone 1 with an additional supply nozzle. An additional hydrocyclone 2 includes up to An additional cylindrical body 10, located along the axis of the latter, has an additional drain pipe with a discharge chamber 12, an annular step 13 in the lower part of an additional case and 10 and tangentially mated with an annular step 13 additional sand pipe k. The unloading chamber 3 is associated with an additional Peskovy pipe 14 additional cylinder 2. Under the additional hydrocyclone 2 coaxially with its additional power pipe 11 is installed vortex chamber 15 with a tangential inlet pipe 16. Internal The lower diameter of the vortex chamber 16 is from 1.0 to 1.2 times the diameter of the additional drain nozzle 11 of the additional hydrocyclone 2, and the height of the vortex chamber 15 is less than or equal to the diameter of the additional PLAYED nozzle 11 of the additional hydraulic cylinder 2.

The device works as follows

Source power through the supply nozzle 5 is supplied to the cylindrical housing D. Under the action of centrifugal force, heavy particles are thrown into the wall of the hydrocyclone 1 and are carried by an external downward flow to the annular ledge 8. The latter sharply deflects the near-wall flow, creating in this zone

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circulating vortex flow, which in turn cleans the wall product. The light particles, together with the clarified slurry, are transported by an internal upward flow to the discharge nozzle 6 and are discharged through the discharge chamber 7.

The condensed product of the hydraulic cylinder through the tangential sand pipe 9 is directed to an additional hydro cyclone 2. Under the action of a centrotis force in a hydro cyclone 2, heavy particles are thrown to the wall of the cylindrical body 10 and are carried by an external downward flow to the annular ledge 13. It sharply deflects the wall part of the flow in the direction of the axis of the apparatus and forms a zone of circulating vortex flow, which cleans the near-wall product.

In the vortex chamber -15 under pressure exceeding the inlet pressure, through the tangential feed nozzle 16, the apparatus is fed with a suspension of the initial density. The slurry in the vortex chamber enters the axial zone of the internal upward flow as it rotates. This increases the speed of movement of the internal flow and the degree of condensation of the clarified slurry.

Claims (1)

The cleaned heavy product, along with the thickened suspension, is discharged through the discharge chamber 3. The intermediate product, together with the additionally extracted useful component, from the descending stream in the area of the annular step 13 and additional axial feed suspension is transported to the additional drain pipe 11 and is discharged through the discharge chamber 12. Formula the invention The apparatus for enrichment of minerals, including a cylindrical hydrocyclone with tangential feed and Peskov nozzles, a drain pipe and an annular ledge in the lower part of the cylindrical hydro cyclone, conjugated with Peskov nozzle with its tangential feed pipe, an additional hydrocyclone with Peskov and a drain pipe that differs in order to increase the efficiency of enrichment, it is provided with an additional 3 1 a hydro cyclone discharge chamber, and a vortex chamber with a tangential inlet nozzle installed under an additional hydro cyclone coaxially with its drain pipe, while the additional hydro cyclone is cylindrical with an annular ledge in the lower part, sand string 699607b  The cuttings of the additional hydrocyclone are set tangentially, the internal diameter of the vortex chamber is from 1.0 to 1.2 times the diameter of the additional nozzle of the additional hydrocyclone, and the height of the vortex chamber is less than or equal to the diameter of the additional nozzle of the additional hydrocyclone. fie.