RU165646U1 - TWO-STAGE HYDROCYCLONE-OXIDIZER - Google Patents

Abstract

1. Two-stage hydrocyclone-oxidizer for wastewater treatment, containing a cylindrical housing with a tangential nozzle for supplying contaminated liquid, sludge and purified water nozzles, equipped with an intermediate drain chamber, characterized in that a bubbler device for supplying oxidizer is installed in the lower part of the cylindrical body, body the secondary twist is made in the form of a truncated cone with an extension to the lower section, in which the blade swirls are located, while along the lower perimeter a secondary swirl housing is fitted with a filter, and a foam outlet is provided at the top of the secondary swirl housing. 2. A two-stage hydrocyclone oxidizer according to claim 1, characterized in that in the upper part of the secondary twist housing between the drain chamber and the cylindrical housing there is an inclined bottom forming an acute angle with the cylindrical wall of the housing. 3. The two-stage hydrocyclone oxidizer according to claim 1, characterized in that between the walls of the cylindrical housing and the secondary swirl housing there is a reflective annular visor, inside of which there is a bubbler device.

Description

The utility model is intended for the purification of industrial wastewater from polluting suspended solids, as well as phenols, petroleum products, surfactants (surfactants) and can be used in machine-building, instrument-making, and energy industries, for cleaning surface contaminants during snow processing in cities.

A device for treating wastewater from suspended solids using centrifugal forces. For example, in a device (copyright certificate No. 1407563 "Hydrocyclone", bull. No. 25 of 07/07/88) in which to increase the cleaning efficiency a two-stage chamber with the creation of two vortices is used. The primary twist is carried out by arranging special blades with different exit angles, and the secondary twist due to the organization of the tangential retraction.

A device is known (RF patent No. 2165308, published on 04/20/2001 “Hydrocyclone cleaner-mixer”), in which, in addition to two-chamber centrifugal cleaning, there is an injector for supplying additional liquid (acid, alkali or an aqueous salt solution) and retractable swirlers flow. This device is taken by us as a prototype. The disadvantages of the prototype are as follows:

1. The device operates periodically, in two stages, and the second stage begins after making sure that “the initial liquid is finally cleaned of mechanical impurities”. At the same time, the valve for supplying additional liquid opens, and the swirlers are extended. Due to this, the cleaning performance is significantly reduced.

2. The use of retractable swirls completely destroys the primary primary vortex, which occurs during the tangential supply of the initial liquid and separation in the secondary chamber does not occur, which significantly affects the quality of cleaning.

3. Additional liquids drained into the sludge nozzle require additional purification and neutralization.

The technical result, the achievement of which the proposed device is directed, is an increase in the quality of cleaning and an increase in productivity. This goal is achieved by the fact that a two-stage hydrocyclone-oxidizer is proposed, containing a cylindrical housing with a tangential nozzle for supplying contaminated liquid, drain pipes for sludge and purified water, equipped with an intermediate drain chamber, in which a bubbler device for supplying oxidizer is installed in the lower part of the cylindrical body, a secondary housing the twist is made in the form of a truncated cone with an extension to the lower section, in which the blade swirls are located, while on the lower a filter is installed at the perimeter of the secondary twist housing, and there is a foam outlet in the upper part of the secondary twist body; there is also an inclined bottom in the upper part of the secondary twist body between the drain chamber and the cylindrical body, forming an acute angle with the cylindrical wall of the body, between the walls of the cylindrical body and The secondary spinning housing has a reflective annular visor, inside of which there is a bubbler device.

The proposed device is presented on:

FIG. 1 - two-stage hydrocyclone oxidizing agent. General form;

FIG. 2 - view A;

FIG. 3 - bubbler device;

FIG. 4 - swirl blades (sweep).

The proposed utility model is a cylinder-conical housing consisting of a central part 1, a drain chamber 3 and a drain housing 13. In the central part of the housing, a main drain pipe 5 and an additional pipe 4, and a secondary twist housing 8 are coaxially located. In the drain chamber 3 there is a discharge fitting secondary sludge 6, and in the lower part of the drain cone 13 there is a pipe for removing sludge 12. In the central part of the housing 1 there is a tangential pipe for supplying contaminated liquid 7. In the lower part of the cylindrical orpusa 1 installed bubbling device 10 for supplying an oxidant. The housing of the secondary twist 8 is made conical with an extension to the lower section. For concentrated supply of the oxidizing agent to the liquid swirl zone between the housing 1 and the secondary swirl housing 8 and eliminating the influence of oxidizing bubbles sliding along the wall 1 of the sludge, there is a reflective annular visor 15, inside which there is a bubbler device 10, and on the housing 1 there is an oxidizer supply nozzle 9 . In the lower section of the secondary twist housing 8 are scapular swirlers 11 and a filter 14 is installed along the lower perimeter of the secondary twist housing 8. In the upper part of the secondary twist housing 8 there is a foam discharge fitting 2, between the drain chamber 3 and the cylindrical body 1 has an inclined bottom 16, forming an acute angle with the cylindrical wall of the housing 1.

The proposed device operates as follows. The source of contaminated water is fed into the pipe 7 and, due to the tangential arrangement, acquires a rotational movement. When the swirling flow moves down between the walls of the housing 1 and the secondary swirl housing 8, the swirl intensity increases due to the confusion of the channel. Large particles are thrown to the wall of the housing 1 and the sludge layer slides down along the inclined wall of the drain cone 13 and is removed through the outlet pipe of the sludge 12.

The bulk of the liquid, changing direction, enters the cavity of the secondary swirl housing 8, and some of the large and medium particles of the pollutant are retained on the filter 14 and removed through the nozzle 12. The fluid entering the secondary swirl cavity passes through the blades of the swirler 11 and acquires an additional rotational movement, which leads to the rejection of incoming pollutant particles to the walls of the chamber 8, which then enter the cavity of the drain chamber 3 and are removed through the nozzle 6. Purified water from the central part of rotsiklona in the main drain pipe 5 and a further pipe 4 is given to the consumer. Simultaneously with the cleaning of suspended particles in a hydrocyclone, phenols, oil products are cleaned, disinfected by feeding any oxidizing agent (ozone, ozone-air mixture, chlorine, etc.) through a bubbler device 10 through the nozzle 9. The oxidizing agent enters through the system distribution holes, which are limited by an annular reflector 15. The incoming oxidizer leaves the bubbler in the form of bubbles and mixes with water in a swirling stream. Bubbles of the oxidizing agent rise up in the water and are distributed according to two physicochemical processes. A certain part of the oxidizing agent decomposes phenols, oil products to simple harmless compounds. For example, the interaction of ozone O ₃ on oil products occurs:

.Where

.

Another part of the oxidizing agent performs flotation, and pollutants in the form of flotation foam rise up and are removed through the nozzle 2.

Thus, in the proposed utility model, a two-stage centrifugal separation of suspended particles, filtration and oxidative decomposition of oil products, cyanides, hydrogen sulfide is performed, which improves the quality of treatment and increases the productivity of the process.

Claims (3)

1. Two-stage hydrocyclone-oxidizer for wastewater treatment, containing a cylindrical housing with a tangential nozzle for supplying contaminated liquid, sludge and purified water nozzles, equipped with an intermediate drain chamber, characterized in that a bubbler device for supplying oxidizer is installed in the lower part of the cylindrical body, body the secondary twist is made in the form of a truncated cone with an extension to the lower section, in which the blade swirls are located, while along the lower perimeter a secondary swirl housing has a filter installed, and a foam outlet is provided at the top of the secondary swirl housing. 2. The two-stage hydrocyclone oxidizer according to claim 1, characterized in that in the upper part of the secondary swirl housing between the drain chamber and the cylindrical housing there is an inclined bottom forming an acute angle with the cylindrical wall of the housing. 3. The two-stage hydrocyclone oxidizer according to claim 1, characterized in that between the walls of the cylindrical housing and the secondary swirl housing there is a reflective annular visor, inside of which there is a bubbler device.

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