SU1680343A1 - Flotation machine - Google Patents

Description

The invention relates to the beneficiation of minerals. The goal is to increase the performance of the flotation process by optimizing its hydro and aerodynamic conditions. The flotation machine consists of a flotation cell 1, in which the pipeline (TP) 2 for air supply is vertically located. Inside the TL 2, it is coaxial with the TP 3 for supplying the pulp with a nozzle (H) 4. Under the TP 2 and 3 there is an aerator 5, communicated with them and made in the form of a hollow chamber. The baffle plate is located under the aerator 5 at the bottom of chamber 1. The invention relates to the field of mineral processing by flotation and can be used in the processing of ore or non-metallic materials.

The aim of the invention is to improve the performance of the flotation process by optimizing its hydro-and aerodynamic conditions.

that 8. Inside the aerator 5 coaxially with TP 2 and 3 and H 4. with the ability to move vertically, the shaper of the pulp jet 6 is located. The latter is made in the form of a cone, facing the base of the slab of the stove 8 and smoothly mated by the top part with the body of rotation of the circular arc around the vertical axis of the cone. The radius of the circle is equal to 3-4 diameters of H 4. The center of the circle is located on a straight line passing through the top of the former 6 perpendicular to the vertical axis of H 4. The angle of the cone forming the vertical axis of the H 4 is 45-60 °. Air under pressure from TP 2 enters the aerator 5, displacing part of the pulp from there and creating a gas-liquid interface. On this surface through the TP 3 and H 4 comes a stream of pulp, which, when it collides with the former 6, takes the form of a hollow cone. When a hollow pulp impinges on the interface, the pulp is aerated. The impact of the flow of aerated pulp on the plate 8 contributes to the additional dispersion of bubbles. Aerated pulp is then discharged into chamber 1, where the flotation process is carried out. 2 Il.

1680343 A1

Nafig 1 shows a flotation machine, frontal incision; in fig. 2 - aeration unit, frontal section.

The flotation machine consists of a flotation cell 1, in which vertically

is located the pipeline 2 for supplying air, inside which the pipeline 3 is coaxially located for supplying the pulp with

3

1680343

four

nozzle 4. Under the pipelines 2 and 3 is the aerator 5, communicated with them.

Aerator 5 is made in the form of a hollow chamber. Inside the aerator 5 coaxially with the pipelines 2 and 3 with the nozzle 4, with the ability to move vertically, is the shaper 6 pulp jets connected to the device 7 to move it.

At the bottom of the flotation chamber 1 under the aerator 5 is a fender plate 8, made in the form of a truncated cone.

The shaper 6 pulp jets are made in the form of a cone, facing the base to the fender plate, smoothly mated with the tip of the top part with the body of rotation of the arc of a circle around the axis of the cone. The radius of this circle is equal to 3-4 diameters of the nozzle 4, and its center is located on a straight line passing through the top of the shaper 6 of the pulp jet and perpendicular to the vertical axis of the nozzle 4, Forming a cone makes an angle of 45-60 ° with the vertical axis of the nozzle. In the upper part of the flotation cell 1, pecogons 10 are located at the overflow thresholds 9.

Flotation machine works as follows.

The pulp through the pipeline 3 under pressure through the nozzles 4 enters in the form of a jet into the aerator 5, where the pipeline 2 under pressure supplies air that displaces part of the pulp from the aerator 5 and creates a gas-liquid interface in it. The pulp, coming out of the nozzle, meets with the surface of the jet shaper 6, as a result of which a hollow conical pulp stream falls to the interface of the phase shaper 6. When a pulp jet collides with the interface, the pulp is aerated. Additional dispersion

air bubbles are facilitated by the collision of its aerated flows with the fender plate 8. Then, the flow of aerated pulp is directed to chamber 1. where the flotation complexes are released. The latter float to the surface of the pulp and with the help of pecogon 10 are removed through slavny thresholds 9.

By vertical movement of the pulp jet former 6, it is possible to change the contact area of the pulp jet with the interface, thereby changing the jet ejection capacity.

Claims (1)

Claim Flotation machine, which includes a chamber, located inside a vertically and coaxially one in another pipeline for supplying air, a pipeline for feeding pulp with a nozzle, an aerator made in the form of a hollow chamber, located under the pipelines and communicated with them, installed under the aerator a fender plate, characterized by that, in order to improve the performance of the flotation process by optimizing its hydro and aerodynamic conditions. It is equipped with a pulp jet former located inside the aerator coaxially with a nozzle and a pipeline and configured to move in the form of a cone, facing the base to the baffle plate and smoothly mated with the tip part of the body of rotation of the arc of a circle around the axis of the cone, while the arc radius is 3-4 diameters of the nozzle, the center is located on a straight line passing through the top of the jet former perpendicular to its vertical axis, and the cone forming the nozzle is 45-60 ° with the vertical axis of the nozzle. 1680343 FIG. 2