SU403442A1 - P P TB - Google Patents

Description

one

The invention relates to the mining and metallurgical and chemical areas of the national economy and, in particular, to the process of mineral processing according to the method of froth flotation and can be applied both to the enrichment of non-metallic minerals (coal, sulfur, graphite, talc, diamonds) and native metals, sulphides and oxidized minerals of non-ferrous metals (copper, lead, zinc, mercury, antimony), carbonates and sulphides of the same minerals, soluble salts (halite, sylvite), oxides and silicates (quartz, mica, hematite, ilmenite). One of these minerals is characterized by high flotoactivity, such as coal, others do not have significant flotation properties, such as oxidized coal.

But in either case, an enrichment process is needed, for which various complications of technological schemes and instrumentation are needed when various different and very complex reagents are crushed.

Flotation masks for foam separation are known, consisting of a chamber, a loading device, a jet distributor, rubber dispersant tubes, foam foams and a special discharge device.

The described pneumomechanical flotation assembly is equipped with chambers moving in height and turning at any angle and assembled from cassettes in which rubber dispersing tubes are placed. The pulp is fed to

the foam layer is taken out of the chamber by a nullabud, made in the form of a glass with a socket, a lid and a movable cornice, inside which a turbine is located, passing into cheeks with a variable number of revolutions.

This allows the process to be intensified by increasing the separation rate in the foam layer and the efficiency of enrichment of coarse-grained particles.

Pa fng. 1 depicts a manlin proposal, a plan; on fng. 2 - the same section; in fig. 3 - the same, side view.

The flotation machine contains two feeding nozzles 1, articulated with a semipatrol sprocket 2, in its lower part, I have a ventless outlet nozzle 3 with a clan for operative descent of the pulp from the pulp pump, the chute 4 for dropping the released from the mash pool.

The asterisk is connected to the cup 5 of the pulp pump in its upper branch pipe, which passes into the socket 6. From above, the socket 6 is covered with a lid 7 with a movable cornice 8 to adjust the amount of pulp fed into the chamber to the foam layer of the slit, the change in the slit size. Inside the stakapap there is an imieller 9 (turbidia screw), the transition into an auger, shaft 10 through a reducer 11 connected to an electric motor 12. A glass, a socket with a lid, impeller and shaft form a remote unit for lifting, pre-aeration of air in a circular air ring A tubular aerator, located in a glass, i.e., an aerofontan, ending with an umbrella, through which it is zero, falling down a waterfall, sets the peppy layer. In the trapezoidal section chamber 13, movable blocks of tubular rubber disiergator cassettes 14 are mounted. With the power of t 15 and handwheels 16, the diverner can either be vertical or plunge into the volume, left unaligned at the mirror, or at an angle to the side, i.e. one side. Each cassette contains up to 10–16 punctured rubber tubes with an internal diameter of 8–10 mm, arranged in a checkerboard pattern with a gap between the tubes of more than 2.5–6 times the diameter of the maximum flotation of my particles. The set of tubular dispersants can contain from 3-2 to 8 unified cassettes, mainly a disassembler and in a 1-2 volume cartridges. It is also possible to install such a unified disperser cassette along the bottom of the chamber. The possibility of emergency shutdown of any tube disnerger without excluding others, as well as disabling the cassette. The air pressure in the tubular dispersants is monitored by pressure gauges. For stiffness, but in the middle of the cassette there is no rack. In the lower part, the chamber is connected by an expanding nozzle with the upper part of the glass. The amount of pulverized feed into the cam to create upflows is regulated or completely stopped by a retirement meter 17. Bottom pulp flows are deflected by a removable fairing 18, the control handle of which with fixation and age is derived and its common herons. In the middle of the camera there is a gate 19 of the innomer's pickup in the pocket. You can adjust the transfer 20 without stopping both by penetration into the foam and through the mirror (more, less) penetration. The chamber has an outlet 21 with clano.m for inspection and repair of the machine. Between the two cameras there is an overflow pocket 22 with a gate of the chamber level adjustment pulted 23. From the bottom of the chamber, the pocket gets into the pocket through an oblique opening, overflows through the gate 23 and leaves the subsequent chamber through the flying crane. A car monitor can be either on each cell, which allows you to adjust the level in each chamber, or a non-overflow pocket with a gate is common to two cameras, resulting in a single level of these cameras (24 and 25 pulmonary pulp circulation and triple chamber nickname). The final foam foam is regulated by adjustable foam into a rectangular gutter 26, inclined only from the nerve chamber to the latter, which does not require the supply of additional process water for the transfer of the foam product to the filters. The flotation machine also contains a transfer chute 27 with a two-way direction of foam concentrate, a non-return gate 18, a shower-spout 29 e, an adjustable direction of water elbows, an annular tubular aerator 30, connecting tubes 31-35. The pulp prepared for flotation (draining, for example, a bumper sump through any contact with reagents, APP- "Cascade, coax tank changer, pump) is taken up by two or one supply nozzle 1, sucked by a turbine impeller 9 and pushing it through the bell 6 through the zones, is thrown down by a waterfall and a peculiar collection grid consisting of tubular rubber disperser cassettes. In addition to imparting upward movement to the pulp flow, it can be pre-aerated by supplying additional compressed air through the tubular aerator 30 into a 5-node nozzle turbine impeller 9 and, accordingly, by increasing the number of revolutions of the impeller shaft 10 with the screw. The flotation machine is pneumatic, as the pulp is pumped mechanically by a peculiar pulp elevator pump, and pneumatic, since its main body is rubber tubular dispersants, into which compressed air is supplied from the compressor. Due to the fact that the slurry is fed to the foam, which serves as a filter for the hydrophilic particles, the hydrophobic material ends up in the air bubble column of the foam filter layer. Pul'na, nopad na this foam filter layer, successively passes through the zones of loading, refining of yen, peat-removal and dynamic destruction by vibrations in the trench. Hydrophilic and unprepared for flotation mineral particles fall through the gaps between the dispersants into the chamber volume, meeting here with rising pulp flows, the directional movement of which is provided by the fairing 18. The pulp is fed into the chamber through the socket and is controlled by a pinch device 17, thus achieving the use of classical flotation elements from iulpa volume. The upward flow of the pulp, on the one hand, keeps the particles in suspension and, on the other hand, also serves as another kind of filter for hydrophilic particles, since the accidentally fallen particles of the useful mineral to be converted into foam are picked up by the upward flow of pulp and the gap in the panel tubular Dsppergator fall into the foam concentrate. The gap in the panel of tubular dispensers is necessary from two points of view: first, to control the selection of separation in the neiHioM filter layer and fall out from it at the place of discharge into the volume of foreign particles, carried out by intensive movement of foam to the discharge chute, including using irrigated with water and. secondly, to efficiently use flotation from the volume by directing the pulp by the fairing 18 to the surface of the cassettes of the deep tubular dispersers 14. The thickness of the foam layer and the ratio between the tubular dispersers and the volume dispersers (14) are selected in each particular case according to the specificity of enriched coal slimes and adjusted upwards, down vertically and at an angle at an angle to the unloading side or in the opposite direction to the loading with rods 15 and flywheels 16 with fixation of the selected position. The tubular dispersers 14 are assembled with standardized cassettes with a bolt-free (slot) cartridge that is easily detachable, but does not disintegrate when moving up and down.

Immediately under the deep cassette of tubular disnergators 14 there is a pocket 24 with a gate 19 of the intake directly from under the tubular dispersants of industrial-production water, which serve to stabilize the hydrodynamic regime in the same chamber and by-pass recovery of unspattered particles by repeated recycling in the same chamber.

Thus, the pulp, having penetrated through the umbrella of an aerofontana to the surface of the foam layer, is first filtered between the dispersants. then, meeting with the counter flows of aerated pulp, is sieved again.

As a result, the hydrophobic particles are carried between the disperser cassettes to the discharge chute. Particles precipitated from the foam here and particles supplied from the volume meet with ascending air bubbles and normal flotation from the volume are carried to the non-lifting point, i.e. triple filtration takes place: through a foam filter layer through ascending streams of aerated jet pulverized through pop-up fine air bubbles.

The poorly valuable room pulp at the bottom of the machine through the overflow pocket 22 with the level gate 23 enters the inlet of the next block of the zero lift pump, where the cycle repeats. Having passed through a series of such chambers, the pulp is discharged through pipe 31 in the form of tailings.

Subject invention

A flotation machine of the pneumatic type, working on the basis of flotation in the volume of the pulp and concentration in the neural layer, consisting of a number of chambers with separate adjustment of the level of the pulp, the dissociators in the inflow tubes and the pickups, which is different for the purpose of intestinal tubes and diversion, which, in order to achieve the same, in order to inthe flow tube and pemososmev, in order to be used for the purpose of intestinal tubes and diversion equipment, in order to be used for the purpose of intestinal tubes and diversion equipment, in order to be used for the purpose of intestinal tubes and diversion equipment, for the purpose of introducing spacing in the tubing, and for the removal of spheres, with the purpose of intestinal pulping by increasing the separation speed in the foam layer and the efficiency of the enriched coarse particles, it is equipped with moving along the height of the chamber and turning at any angle blocks collected from the cassettes in which the rubber is placed disnergatory-tube, and the pulp feed to the foam layer is performed outside the rendered pulpopodemnikom chamber formed in the form of a cup with a socket, a lid movable n cornice inside which a turbine, the transition in conductive screw with izme1 emym chnelom speed. irf U and and -Jl, "t 5 2