SU1256794A1 - Flotation machine - Google Patents

Description

2. Machine pop. 1, characterized in that vertical soothing plates are mounted in the aeration chamber, which are directed opposite edges to the column

and to unloading devices.

3. Machine on PP. 1 and 2, characterized in that the column, the discharge, aeration and flotation chambers are filled with cylindrical and

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The invention relates to the flotation of various materials and can be used in mineral processing, wastewater treatment and chemical technology.

The purpose of the invention is to reduce the loss of valuable components during flotation by increasing the intensity of pulp aeration.

FIG. 1 shows a flotation machine, a slit; in fig. 2 - the same, top view; in fig. 3-6 are variants of flotation machine implementation.

The flotation unit consists of a column 1 with a loading device 2, a drain chamber 3 with a slot in the bottom, overlapped with a gate 4, an aeration chamber 5 with an end guide. bottom 6 and soothing plates. 7 and the flotation chamber 8 with devices for unloading and discharging foam and chamber products 9 and 10. The fleet of the stationion machine can also be equipped with a casing 11. The loading device 2 is located above column 1, and the aeration chamber 5 under column 1 and communicates with It has an opening 12 with an adjusting gate 13. The drain chamber 3 is located above the discharge opening 12 in the column, with a slot in the bottom of the drain chamber 3 located above the aeration chamber 5. The soothing plates 7 are directed oppositely towards the column 1 and unloading Gears 9 and 10, the casing II in the variants of the machine is installed coaxially with column 1 with a gap from the bottom 6 of the aeration chamber 5. Tower 1, drain 3, aeration mounted coaxially to each other, and a cylindrical cover coaxial with the column with a gap relative to the fender-guiding bottom .

4. The machine according to claim 1, which is similar to the fact that the pipe is attached to the casing pipe supply of compressed air.

5 and flotation chamber 8 are installed coaxially to each other. On the casing 11 a compressed air supply port 14 can be installed. The bottom 6 of the aeration chamber 5 directly below the column A and the drain chamber 3 has a slope towards the flotation chamber. 8, and the area adjacent to the flotation cell 8 has a reverse slope.

Flotation machine works as follows.

Through the loading device 2 in the column 1 serves the pulp, which, lowering the column 1, move. stitches with air, hits about the bottom 6 of the aeration chamber 5 and exits through the hole 12 in the form of an oblique flow of the pulp-air mixture. Part

the pulp enters the column 1 into the drain chamber 3 and from there through a hole in the bottom of the drain chamber 3 in the form of a dense stream falls on the auxiliary stream of the pulp air mixture flowing out of the hole 12. Due to the oblique execution of the bottom 6 of the aeration chamber 5, the yoke currents collide at an angle of 20 60 and high dispersion intensity

air in the pulp. The pulp-air mixture formed after the collision of the flows is discharged by inertia forces into the flotation cell 8, where the flotation process is carried out. The foam and chamber products released during flotation are removed from the flotation cell with the appropriate devices 9 and 10, and it is advisable to use an adhesive drum 9 to remove the foam product.

With a large depth of the flotation cell 8, it is advisable to force the air supply, which is done by pumping it through the nozzle 14 into the casing 11.

Supplying the machine with a drain chamber with a slot in the bottom, located above the aeration chamber, provides effective aeration of the pulp with a flat falling stream. Installing soothing plates in the aeration chamber with opposite ends to the column and discharge devices prevents the formation of vortex flows in the aeration chamber and contributes to the stable and uniform flow of pulp aeration. Performance of a column, drain, aeration

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5 and the flotation chamber cylindrical and installed coaxially to each other promotes uniform aeration of the pulp in the volume of the flotation chamber. The installation is coaxial with the column with a clearance of the fender-guiding bottom of the cylindrical casing ensures continuous supply of air into the aeration zone and contributes to the stable flow of pulp aeration. The installation on the casing of the compressed air supply nozzle allows, due to the forced air supply, to carry out aeration of the pulp in deep flotation vessels.

Thus, during operation of the flotation machine, steady and intensive pulp aeration is achieved, resulting in a reduction in the loss of valuable components during flotation.

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FIG.

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FIG. 6

Compiled by V. Morozov. Editor M. Tovtin Tehred I. Veres Proofreader M. Pojo

Order 4857/5 Circulation 514Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (4)

1. A FLOTATION MACHINE containing a loading device sequentially installed and connected to each other, a vertical column, an aeration chamber with a baffle-bottom and a flotation chamber with devices for unloading foam and chamber products, characterized in that, in order to reduce the loss of valuable components during flotation by increasing the intensity of aeration of the pulp, from the side of the loading device, a drain chamber connected to it with a slit hole in the bottom is connected to the vertical column which is located above the aeration chamber. <g> "" Al 2. Machine pop. 1, due to the fact that vertical soothing plates are installed in the aeration chamber, directed by opposite edges to the column and to the unloading devices. 3. The machine according to paragraphs. 1 and 2, characterized in that the column, drain, aeration and flotation chambers are made cylindrical and mounted coaxially to each other, and coaxially to the column with a gap relative to the baffle-guiding bottom is a cylindrical casing. 4. The machine according to claim 1, I tell you that the nozzle for supplying compressed air is fixed on the casing.