RU1836294C - Flotation plant operator - Google Patents

Abstract

Usage: water; Preparation and purification of wastewater. SUMMARY OF THE INVENTION: A flotator is a tank with a hopper bottom, inside which a working chamber with a nozzle is installed, consisting of a sequentially located displacement chamber and truncated conical surfaces mounted relative to each other with an annular gap. The pipelines are suitable for the working chamber: the initial wastewater from the saturator and recirculation, the other end of which is under the reflective cone located above the bunker bottom. The pipeline from the saturator ends with a coupler located inside the working chamber coaxially with the displacement chamber. There is a mechanism for collecting and removing foam, a collection tray of purified water and a foam and sludge pipeline. 2 ill.

Description

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The invention relates to water supply and sewage and can be used in water treatment and wastewater treatment.

The purpose of the invention is to increase the reliability of the flotator.

In Fig.1 shows a General view of the flotator side view; figure 2 is the same, a front view in section.

The flotator for cleaning the liquid is a tank 1 with a hopper bottom, inside which a working chamber 2 with a nozzle 3, a supply pipe 4 for supply of saturated water, a pipe 5 for the initial liquid and a recirculation pipe 6, the lower open end of which is located under the reflective cone 7. the flotation chamber is allocated to the tank 1 using the partition 8, inside of which a foam collection mechanism 9, a gear motor 10 and a foam collection tray 11 are installed. The flotator has a clarified water collection tray 12 and a drain 13 sludge ode attached to the bottom of the bunker bottom of tank 1.

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The nozzle 3 consists of a mixing chamber 14 and truncated cones 15 mounted relative to each other with an annular gap. The suction water pipe 4 is connected to a saturator 16 equipped with a compressor 17 and a pump 18 for the working fluid. The pipe 4 ends in the working chamber 2 with a nozzle (not shown) installed coaxially to the mixing chamber 14. The suction pipe of the pump 18 is connected to the clean water pipe.

The flotator operates as follows.

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The working fluid from the saturator 16 through a pipe 4 enters the working chamber 2, in which a vacuum is created and the original waste fluid enters into it. Moreover, at the maximum hourly inflow, the liquid enters the working chamber 2 only through pipeline 5, and at the flow rates of the liquid being cleaned less than the maximum, the missing amount of liquid reaches the maximum flow through pipeline 6. Thus, the flotator operates with a constant hydraulic load.

From the working chamber 2, the cleaned and saturated liquids enter the mixing chamber 14, where it is intensively mixed and flows out under the water level. As the nozzle 3 moves within the truncated cones 15, the jet energy is suppressed and the velocity decreases to values favorable for the formation of flotation complexes and preventing their destruction. At the exit of the nozzle 7, the flotation complexes are in contact with the reflective cone 7 and are uniformly distributed over the area of the flotator. The particles of dirt rise to the surface and, when the foam collecting mechanism 9 rotated by the gear motor 10 is rotated, it enters the foam collection tray 11, from which it is withdrawn for further processing. Precipitated sediment is also discharged for further processing through line 13.

The purified water is collected in a collecting tray 12 and discharged through line 19.

Part of the purified water from the pipeline 19 is taken by the pump 18 and fed to the saturator 16, where air is also supplied by the compressor 17.

The proposed design of the flotator

increases the reliability of its operation due to the constant flow of fluid and stabilization of the number of air bubbles necessary for the formation of aeroflocs.

Claims (1)

It eliminates the enlargement of air bubbles and stabilizes the speed of their movement. SUMMARY OF THE INVENTION A flotator comprising a hopper bottom tank, a saturation site liquids, a mechanism for collecting and discharging foam, a collection tray of purified water, pipelines for supplying source water and saturated liquid, and for discharging necks and sludge, characterized in that, in order to increase reliability in operation, it is equipped with a working chamber mounted on the vertical axis of the tank with a nozzle and a reflective cone placed above the hopper bottom, the nozzle consists of a mixing chamber and truncated cones located one above the other with the formation of annular gaps between them and having diameters increasing along the flow, while the pipelines for supplying the initial liquid and saturated liquid connected to the working chamber, equipped with a recirculation pipe, one end of which is placed under the reflective cone, and the supply pipe of the saturated water equipped with a nozzle mounted on the working chamber coaxially with the mixing chamber. 9 FIG. 2