CN219442673U - Lower part washing unit in flotation column - Google Patents

Abstract

A lower flushing device in a flotation column comprises a flotation column body; the flotation column body is a cone-shaped column body as a whole, and the lower part of the cone-shaped column body is connected into a column body structure of a cylindrical column body; the conical cylinder is provided with a compressed air pipe horizontally fixed on the outer wall of the conical cylinder; connecting air pipes are symmetrically arranged at two ends of the compressed air pipe; the output ends of the connecting air pipes are connected with a flushing nozzle for flushing sediment at the tail discharge position of the inner lower part of the flotation column through a connecting flange; and the connecting flanges are provided with electromagnetic pulse valves. The utility model has simple structure, greatly reduces the shutdown maintenance caused by the sediment blockage at the lower part of the flotation column, reduces the labor intensity of maintenance workers and improves the working efficiency of the flotation column; meanwhile, the device is automatically controlled without personnel operation, so that labor cost is saved, and benefits are increased for enterprises.

Description

Lower part washing unit in flotation column

Technical Field

The utility model belongs to the technical field of flotation column equipment, and particularly relates to a lower flushing device in a flotation column.

Background

In mine production, flotation column ore pulp is fed from an upper ore feeding pipe and uniformly flows into a flotation column, compressed air is filled into the column through a vertical air pipe through a plenum chamber at the lower end of the column, a large amount of formed tiny bubbles are uniformly distributed on the whole section, ore pulp slowly descends under the action of gravity, the bubbles slowly rise from bottom to top, the bubbles meet with useful minerals to be selected in the ore pulp in the column continuously, the minerals to be selected are attached to the surface of the rising bubbles due to the action of a medicament in convection movement, a mineralized foam layer is formed at the upper part of the column, the minerals are scraped into or overflowed into a concentrate tank by a scraping plate, and the rest minerals are discharged from a tailing pipe at the bottom of the cone at the lower part of the column.

The flotation column is novel efficient energy-saving flotation equipment, and has the characteristics of no energy consumption, small occupied area, convenience in maintenance and high beneficiation efficiency. However, since the flotation column is unpowered and the tailing is discharged by the movement of the ore pulp, the sedimentation is serious in the tailing discharging process at the lower part of the flotation column, the lower part and the tailing discharging pipeline are blocked in many cases, the operation of stopping the machine for manual cleaning is required, the cleaning is extremely inconvenient, meanwhile, long-time sedimentation can also cause equipment failure of the tailing discharging part, and the caused stopping maintenance is influenced, so that the production progress is influenced.

Disclosure of Invention

The utility model aims to provide a lower flushing device in a flotation column, which is used for solving the problems that the tail discharging part at the lower part of the flotation column is easy to block and is inconvenient to clean in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a lower flushing device in a flotation column comprises a flotation column body; the upper part of the flotation column body is provided with a cone-shaped column body, and the lower part of the cone-shaped column body is connected with a column body structure of a cylindrical column body; the conical cylinder is provided with a compressed air pipe horizontally fixed on the outer wall of the conical cylinder; connecting air pipes are symmetrically arranged at two ends of the compressed air pipe; the output ends of the connecting air pipes are connected with a flushing nozzle for flushing sediment at the tail discharge position of the inner lower part of the flotation column through a connecting flange; and the connecting flanges are provided with electromagnetic pulse valves.

The electromagnetic pulse valves on the connecting flange are all electrically connected and are mutually connected with an external pulse controller.

The inside of the cylindrical column body is provided with an inclined plate used for guiding ore pulp to be discharged, and a tail discharge pipeline is communicated with the bottom of one side of the cylindrical column body.

The output end nozzle of the flushing nozzle is arranged in the lower cylindrical column body of the flotation column.

The lower inclined plane of the inclined plate corresponds to the inlet end of the tail discharge pipeline.

The included angle between the inclined plate and the bottom of the flotation column is 140-160 degrees.

Compared with the prior art, the utility model has the following beneficial effects: the device has a simple structure, and can effectively clean sediment at the lower part of the flotation column through the matched use of the flushing nozzle, the electromagnetic pulse valve and the pulse controller, which greatly reduces the shutdown maintenance caused by the sediment blockage at the lower part of the flotation column, reduces the labor intensity of maintenance workers and improves the working efficiency of the flotation column; meanwhile, the device is automatically controlled without personnel operation, so that labor cost is saved, and benefits are increased for enterprises.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic structural view of the flushing nozzle in the present utility model.

In the figure: 1. the flotation column body, 101, the cone column body, 102, the cylindrical column body, 2, the compressed air pipe, 3, the connecting air pipe, 4, the connecting flange, 5, the flushing nozzle, 6, the electromagnetic pulse valve, 7, the pulse control instrument, 8, the sloping plate, 9 and the tail discharge pipeline.

Description of the embodiments

The utility model is described with reference to the accompanying drawings.

The lower flushing device in the flotation column as shown in fig. 1 and 2 comprises a flotation column 1; the upper part of the flotation column 1 is provided with a cone-shaped column 101, and the lower part of the cone-shaped column 101 is connected with a column structure of a cylindrical column 102; the inside of the cylindrical column 102 is fixedly provided with an inclined plate 8 for guiding ore pulp to be discharged, and the bottom of one side of the cylindrical body 1 is communicated with a tail discharge pipeline 9; the lower inclined surface of the inclined plate 8 corresponds to the inlet end of the tail discharge pipeline 9; the included angle between the inclined plate 8 and the bottom of the flotation column is 140-160 degrees, the inclined angle of the inclined plate 8 can be known to be optimal to use within 140-160 degrees according to actual use, namely the top end of the inclined plate 8 is supported at the lower part of a flushing nozzle in the conical column 101, the bottom of the inclined plate 8 is supported at the inlet end of the tailing discharge pipeline 9, and the angle of the inclined plate 8 can be selected according to the consistency of flotation slurry; the conical column body 102 is provided with a compressed air pipe 2 horizontally fixed on the outer wall of the conical column body 102; the two ends of the compressed air pipe 2 are symmetrically provided with connecting air pipes 3; the output ends of the connecting air pipes 3 are connected with a flushing nozzle 5 for flushing sediment at the tail discharge position at the lower part in the flotation column through a connecting flange 4; the output end nozzle of the flushing nozzle 5 is arranged in the lower cylindrical column 102 of the flotation column; the air inlet of the compressed air pipe 2 is connected with 3-5Mpa compressed air outside; the connecting flanges 4 are provided with electromagnetic pulse valves 6; the electromagnetic pulse valves 6 on the connecting flange 4 are electrically connected with each other and are mutually connected with an external pulse controller 7; the 3-5Mpa compressed air enters the compressed air pipe 2, the pulse controller 7 releases a control signal to the electromagnetic pulse valve 6, the pulse valve is opened, the compressed air can instantaneously enter the lower part of the flotation column through the flushing nozzle 5 to flush out the sediment at the lower part, and meanwhile, the pulse controller 7 is used for controlling flushing, so that the operation of stopping for manual cleaning is omitted, and the labor cost is saved.

When the utility model is used, firstly, a flushing nozzle 5 with a proper caliber is selected according to the specification of flotation column pulp in a flotation column, the flushing nozzle 5 is communicated with a connecting air pipe 3 through a connecting flange 4 and is fixed on a cylindrical column 102 at the lower part of the flotation column, then 3-5Mpa compressed air is introduced into a compressed air pipe 2, a corresponding pulse control period is set on a pulse control instrument 7 according to the actual tail discharge condition, when the flotation column runs to the pulse period, the pulse control instrument 7 releases a control signal to an electromagnetic pulse valve 6, the pulse valve is opened, the compressed air instantaneously enters the lower part of the flotation column through the flushing nozzle 5, the lower part of the flotation column is flushed, and sediment flows into a tail discharge pipe at the bottom of the flotation column through an inclined plate to be discharged, so that the blockage is avoided, and the mineral separation effect is not influenced.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (6)

1. A lower flushing device in a flotation column, which comprises a flotation column (1); the method is characterized in that: the upper part of the flotation column (1) is provided with a cone-shaped column (101), and the lower part of the cone-shaped column (101) is connected with a column structure of a cylindrical column (102); a compressed air pipe (2) horizontally fixed on the outer wall of the conical column body (101) is arranged at the conical column body (101); connecting air pipes (3) are symmetrically arranged at two ends of the compressed air pipe (2); the output ends of the connecting air pipes (3) are connected with a flushing nozzle (5) for flushing sediment at the tail discharge position at the lower part in the flotation column through a connecting flange (4); electromagnetic pulse valves (6) are arranged on the connecting flanges (4).

2. The flotation column internal lower rinse apparatus of claim 1, wherein: the electromagnetic pulse valves (6) on the connecting flange (4) are electrically connected and are mutually connected with an external pulse controller (7).

3. The flotation column internal lower rinse apparatus of claim 1, wherein: the inside of the cylindrical column body (102) is provided with an inclined plate (8) for guiding ore pulp to be discharged, and a tail discharge pipeline (9) is communicated with the bottom of one side of the cylindrical body.

4. The flotation column internal lower rinse apparatus of claim 1, wherein: the output end nozzle of the flushing nozzle (5) is arranged in the lower cylindrical column body (102) of the flotation column.

5. A flotation column bottom flushing device according to claim 3, characterized in that: the lower inclined surface of the inclined plate (8) corresponds to the inlet end of the tail discharge pipeline (9).

6. A flotation column bottom flushing device according to claim 3, characterized in that: the included angle between the inclined plate (8) and the bottom of the flotation column is 140-160 degrees.