RU1832059C - Sewage treatment device - Google Patents

Abstract

Usage: wastewater treatment containing fractions emulsified in them, not miscible with water and having an interface with it, the density of which is less than the density of water. SUMMARY OF THE INVENTION: A device for treating wastewater comprises a housing with nozzles for supplying wastewater and discharging separated fractions. The rotor includes two disks - the upper 6 and lower 7 and a non-rigid conical partition 9 fixed between them. The device for outputting the heavy fraction from the rotor includes holes 12 made in the central part of the lower disk 7 and tubes 13 connected to them located in the rotor cavity radially and so that their inlets 14 are located at the non-rigid partition 9. It is advisable to make the inlet portions 15 of the tubes 13 of elastic material. 1 s.p. f-ly, 4 ill.

Description

The invention relates to a technique for treating wastewater containing fractions emulsified therein, not miscible with water, having an interface with it, and whose density is lower than the density of water, and can be used in purification or in technological processes for producing light fractions.

The purpose of the invention is to improve the quality of cleaning.

Due to the double movement of the initially light fraction to the center, and the heavy fraction to the periphery, and then from the periphery to the center, the quality of the separation in the tubes is increased, where the centrifugal pressure of the column of the heavy fraction prevents the passage of the light fraction.

Figure 1 shows a device, a longitudinal section; in Fig.2 - node I in Fig. 1; in Fig.Z is a longitudinal section of a device with tubes

from elastic material; figure 4 is a section aa in fig.Z.

The wastewater treatment device comprises a housing 1 with nozzles for supplying 2 and for extracting 3 and 4 of separated fractions, mounted in the housing 1 on the drive shaft 5, a rotor comprising two disks 6 and 7 located one above the other, in the upper 6 of which holes 8 are made for output of the light fraction, and fixed between the disks 6 and 7, a non-rigid conical septum 9, a glass 10 centrally mounted in the rotor with holes 11 for supplying wastewater to the rotor. The device for outputting the heavy fraction from the rotor includes holes 12 made in the central part of the lower disk 7. and tubes 13 connected to them, arranged radially in the rotor cavity and so that the inlets 14 are located on a non-rigid

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with you

partitions 9. The inlet sections 15 of the tubes 13 are made of elastic material. A container 16 is formed between the glass 10 and the partition 9, connected by holes 17 to the sewage supply pipe 2. Section a characterizes the level of effluents during separation and discharge, and section b the maximum possible level of movement of the heavy fraction with a mixture of heavy and light fractions.

The device operates as follows.

Wastewater through nozzle 2 through openings 17 and 11 enters the tank 16, where in the field of centrifugal forces are separated into heavy and light fractions, the latter is discharged through holes 8 in the upper disk 6 and in the spray torch are discharged to the housing 1 through the tangential nozzle 3 A heavy fraction enters the holes 12 and is discharged through nozzles 13. Its removal in the direction opposite to the action of inertia forces improves the quality of cleaning. For a variant of the device in which the inlet sections of the tubes are made of elastic material, the inlet openings 14 are located at the non-rigid partition 9, and the outlet is through the openings 12 of the tubes 3 due to the difference in levels a and the maximum possible back pressure b. For example, when the rotor is rotated in the direction of arrow B, the elastic inlet and sections of the tubes 13 deflect 4 sides opposite the direction of rotation, creating a vibration that improves the quality of cleaning.

When treating wastewater containing oil products, up to 50% of which are

fifty

0

5

0

5

in an emulsified state, and the thermal motion of water molecules prevents their gravitational separation. Further purification of such effluents by physicochemical methods leads to an increased consumption of alumina and the formation of a large amount of oil sludge. The proposed devices make it possible to bring the content of oil products in effluents to 0.05-0.1%, which increases the indicators of subsequent purification.

Claims (2)

SUMMARY OF THE INVENTION 1. A device for treating wastewater, comprising a housing with nozzles for supplying wastewater and discharging the separated fractions, a rotor mounted in the housing on the drive shaft, including two disks located one above the other, in the upper of which openings for outputting the light fraction are made, and a non-rigid conical partition fixed between the disks, a centrally mounted glass in the rotor with openings for supplying wastewater to the rotor, and a device for conveying heavy fractions from the rotor, characterized in that which, in order to improve the quality of cleaning, the device for outputting the heavy fraction from the rotor includes holes made in the central part of the lower disk and tubes connected with them arranged radially in the rotor cavity and so that their inlet openings are located at a non-rigid partition,  2. The device according to claim 1, characterized in that the inlet sections of the tubes are made of elastic material. h / y ... / // // Figz fig 4 1832059 f / s