SU1558493A1 - Flotation apparatus - Google Patents

Abstract

This invention relates to the enrichment of minerals by flotation. The goal is to increase the performance of the flotation process by optimizing its hydrodynamic conditions. The flotation cell contains a cylindrical body (K) 1 with a bottom 5 and a lid 2 on which the tangential nozzle 3 is located for supplying the pulp and an axial nozzle 4 for draining the frothy product. The vertical wall K 1, together with a horizontal partition 8 connected to it and a perforated surface (PP) 6 arranged coaxially to it 6 in the form of a truncated cone 7, form an air chamber 9, with which the nozzle 10 is connected to supply compressed air. A shell 12 in the form of a cone is attached to the lower part of PP 6 below chamber 9, uniformly around the perimeter of which discharge gaps 13 are made. A tangential outlet pipe 11 is attached to the lower part K 1. Pulp 3 enters K 1 and acquires rotational motion. Compressed air is supplied to chamber 9 through nozzle 10, which through PP 6 enters K 1 in the form of bubbles. Air bubbles with the floated particles are removed through the nozzle 4, and the tails are unloaded through the slots 13 and removed from the body through the nozzle 11. 1 sludge.

Description

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and a perforated surface (PP) 6 arranged in a coaxial manner 6 in the form of a truncated cone 7 forms an air chamber 9 with which a port 10 communicates for supplying compressed air. A shell 12 in the form of a cone is attached to the lower part of PP 6 below chamber 9, the discharge slots 13 are made uniformly around its perimeter 13. A tangential outlet nipple 11 is attached to the lower part K 1.

Pulp through pipe 3 enters K 1 and acquires a rotational motion. Compressed air is supplied to chamber 9 through nozzle 10, which through PP 6 enters K 1 in the form of bubbles. Air bubbles with the floated particles are removed through the nozzle 4, and the tails are unloaded through the slots 13 and removed from the body through the nozzle 11. 1 sludge.

The invention relates to the enrichment of minerals by the method of flotation, in particular, to the design of pneumatic flotation machines, and can be used in the processing of ore and non-metallic raw materials, wastewater treatment.

The aim of the invention is to improve the performance of the flotation process by optimizing its hydrodynamic conditions.

The drawing shows the flotation device.

The flotation unit consists of a cylindrical body 1, to which is attached a top 2 with a tangential nozzle 3 for supplying the pulp and an axial nozzle 4 for draining the frothy product. From below, the housing 1 is closed by the bottom 5. Inside the housing 1, a perforated surface 6 connected in a coaxial manner is arranged in the shape of a truncated cone 7. In the lower part of the housing 1 there is a horizontal annular partition 8 forming together with the walls of the housing 1 and the perforated surface 6 an air chamber 9, which is connected to the pipe 10 for the supply of compressed air. In the lower part of the housing 1 below the partition 8 there is a tangential outlet nipple 11. At the bottom end of the truncated cone 7 a conical shell 12 is fixed, the discharge slots 13 are uniformly around its perimeter.

Flotation apparatus operates as follows.

The original pulp through the tangential nozzle 3 enters into the cylindrical body 1 and acquires in it an

sweeping motion. At the same time, compressed air is fed into the air chamber 9 through the nozzle 10, which, passing through the perforated surface 6 of the truncated cone 7, enters the body in the form of bubbles that move along a spiral trajectory m to the center of the apparatus, drawing the particles on its surface the mineral foam formed from the air bubbles is led out through the axial nozzle 4. Non-flotation particles move down the walls of the truncated cone 7 and unload through the discharge slots 13 into the lower part of the building. sa 1, from where they are output through pipe I.

Claims (1)

Invention Formula A flotation device that includes a cylindrical body, to the bottom of which a discharge nozzle is attached, and a tangential nozzle for supplying pulp and an axial nozzle for withdrawing frothy product are placed on the lid, a coaxial body, an air chamber formed by a vertical wall of the body and a perforated surface connected to the horizontal body an annular partition, a pipe for supplying compressed air, characterized in that, in order to improve the performance of the flotation process by optimizing its hydrodynamic According to the physical conditions, the device is equipped with a perforated surface connected to the lower end 5, in which the discharge cuts are made uniformly around the perimeter, and the perforated surface of the shell is made in the form of a truncated cone. five 0