SU1233943A1 - Flotator for purifying water - Google Patents

Description

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The invention relates to the purification of natural and waste waters and can be used in the mining, metallurgical, chemical, pulp and paper and other industries.

The purpose of the invention is to increase the efficiency of water purification by optimizing the dispersed composition of the gas phase.

FIG. 1 shows a flotation cell for water purification; in fig. 2 - an element for the release of air from the water-air mixture.

The flotation cell consists of a flotation cell 1, a nozzle 2 for supplying purified water, a nozzle 3 for discharging purified water, a device for collecting and discharging a frothy product made, for example, in the form of a scraper conveyor 4 installed in the upper part of the flotation cell 1 and a conical cup 5 and installed- . In the taper cup 5 of the element 6 for the release of air from the water-air mixture, made in the form of a hydrodynamic radiator, consisting of a slit nozzle 7 and pointed from the edges of the plate 8. The plate 8 is installed opposite the nozzle 7 coaxially with it. A nozzle 7 has a cylindrical casing 9 on which plate 8 is fixed in supports 10. A conical cup 5 is installed in the flotation chamber 1 and is facing down to the bottom of the chamber 1. The slotted nozzle 7 is made at the end of the supply water pipe 2 and directed to the bottom of the cup 5.

The flotation cell works as follows.

The water-air mixture under pressure is fed through the nozzle 2 of the supply of purified water to the element 6 for separation

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When an outflow of fluid flows from the slotted nozzle 7 to the plate 8, which is sharp from the edges, exciting bending oscillations of sound and ultrasonic frequencies appear in the latter. Under the action of acoustic oscillations, air is released and dispersed from the water-air mixture, after which the aerated

The untreated water is poured from the conical cup 5 into the flotation cell 1. Air puzzles dispersed in water float to the surface and foam into the foam layer attached to them 5 times of contaminants. The foam product using the scraper conveyor 4 is collected from the surface of the treated water and is removed from the flotation cell 1. The water separated from the pollutant particles 20 is taken from the bottom of the flotation cell 1 through the nozzle 3. A hydrodynamic radiator consisting of a slit joint is used to disperse air 25 plate 7 and mounted on the casing 9, coaxially to the nozzle 7, pointed at the edges of the plate 8 contributes to a more dispersed air. The execution of glass 5 extends to the bottom, and

30 slotted nozzles 7, directed to the bottom of the glass 5, provides additional dispersion of large air puffs when an aerated water jet hits the bottom of the glass 5, and also prevents large air bubbles from entering the flotation cell by creating conditions for their coalescence upon exit flow from glass 5.

40 Thus, an optimum dispersed composition of the gas phase in the purified water is ensured and the efficiency of its cleaning from contamination is achieved.

Editor T. Parfenova

Compiled by V. Morozov Tehred L. Serdyukova

Order 2931/7 Circulation 51A Subscription

VNIIPI USSR State Committee: for Inventions and Discoveries 1 13035, Moscow, Zh-35, Raushsk nab., D; 4/5

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

FIG. 2

Proofreader A. T sko

Claims (1)

A FLOTATOR FOR WATER CLEANING, containing a flotation chamber, nozzles for supplying and discharging purified and purified water, a device for collecting and discharging foam product, a glass installed in the end of the flotation chamber and an element for separating air from the air-water mixture installed in the glass, characterized in that, with In order to increase the efficiency of water purification due to the optimization of the dispersed composition of the gas phase, the air separation element is made in the form of a hydrodynamic emitter, and the glass is made expanding to n: iy. SU .... 1233943