SU1313807A1 - Flotation machine - Google Patents

Abstract

The invention relates to devices for the purification of liquids and can be used in the oil, petrochemical and refining industries when removing petroleum products and mechanical impurities from gas-saturated waters. The aim of the invention is to reduce the energy consumption and the water content of the froth product. The device comprises a vertical cylindrical container 1 with a vertical cylindrical partition 6, which is installed coaxially in the upper part of the container 1, the diameter of which is larger than the diameter of the axial vertical pipe 10 installed in the container. In this case, the lower end of the pipe 10 is attached to the pipe outlet of the clarified liquid 3, and the upper is located inside the vertical cylindrical partition 6 below its upper end. Below the vertical cylindrical partition 6 there is a horizontal annular partition 12, the outer diameter of which is larger than the diameter of the vertical cylindrical partition. 1 il. i (l rf

Description

The invention is inclined to devices for cleaning liquids and can be used in petroleum-based petrochemical and oil refining applications when removing petroleum products, mechanical impurities 5 as well as associated gases from gas-saturated waters.

The purpose of the invention is to reduce the energy consumption and water content of the froth product.

The drawing shows schematically the proposed flotation plant.

The flotation machine contains an airtight container i with inlets for supplying the initial mixture 2 5 discharging clarified liquid 3, foam product 4 and sludge 5 a vertical cylindrical partition 63 installed in the container coaxially above the bottom, and a pen container 7 placed below the upper end of the vertical cylindrical partition. A distributing device 8 with perforations 9 installed in the wider part of the tank is attached to the nozzle 2. An axial tube JO is placed in the tank I, the lower end of which is connected to the nozzle 3, and the upper end is located inside the vertical C 1-1 of the partition wall 6 - Receptacle 7 is made in the form of a pocket 1, which is provided with snapshots on the perigumer vertical cylindrical partition 6 with the edge of the pocket located at the level of the upper end of the axial pipe 10, On the axial pipe 10 below the foam collector 7 The ring 12.5 has an outer diameter which is larger than the diameter of the vertical cylindrical partition 5. The collector 7 is connected to the nozzle 4 by means of a pipe 13.

The flotation machine works as follows.

The initial gas-saturated mixture enters under pressure in a container through the nozzle 2. At the exit of the mixture from the perforations E of the distributor 8, there is an intensive release of the smallest gas bubbles. When floating up, these bubbles capture particles of solid and iron impurities, creating foam on the surface of phase separation. Switchgear 8 ensures uniform distribution of gas bubbles over the cross-section of a filled volume

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liquid to be cleaned. The clarified liquid enters the space between the walls of the axial tube 10 and the vertical cylindrical partition 6 from below, from where it flows into the tube 10 and goes through the nozzle 3 from ei-jKOCTH 1 “

The foam product accumulates in the flow process on the surface of the cleaned fluid outside the vertical cylindrical partition 6 and enters the pocket I of the foam collector 7. From the pocket, the penns product goes down through the pipe 13 downwards and through the nozzle 4 leaves the tank 1, The foam product breakthrough into the pipe 10 excluded due to the fact that the upper end of this pipe is located below the upper end of the partition 6,

. Flowing the clarified liquid into the pipe 10 and the frothy product into the pipe 13 creates a directional shift of the surface layer of the liquid.

j. from the periphery: tank 1 to the axial zone. The sludge from tank 1 is discharged through pipe 5.

The use of an axial tube for removal of the clarified liquid, the upper end of which coincides with the top-1 of it by the edge of the foam collector pocket, allows maintaining a constant level of liquid in the flotation cell. And organizing the spontaneous movement of foam in the foam container,

The economic effect is achieved by eliminating the energy consumption for foam removal and reducing the water content of the foam product.

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Claims (1)

Invention Formula A flotator containing a container with nozzles for supplying the initial mixture and discharging the frothy product, clarified liquid and shlama, a vertical cylindrical partition mounted coaxially, and a porter placed below the upper end of the cylindrical partition, in order to reduce energy consumption and water content of the foamy the tank is equipped with an axial vertical pipe, the lower end of which is attached to the outlet pipe of the clarified liquid, and the upper one is located inside the vertical cylindrical partition ilk its upper end, thus formed in Skimmer 3. 13138074 - ring pocket, which is axially provided with a collar; from the outside it is provided with a vertical, below the foam cylindrical partition, a collector, the outer diameter of which the outer edge of which is larger than the diameter is vertical at the level of the upper end of the axial 5 ° cylindrical partition - vertical pipe, with verti-kn.