SU1691313A1 - Oil-containing sewage cleaning unit - Google Patents

Abstract

The invention can be used in the chemical and other industries. The purpose of the invention is the intensification of the cleaning process. The device comprises a cylindrical body (K) 1 with tangential inlet pipes 2, means for collecting and removing oil and oil products, consisting of an inner pipe 3 and an outer pipe 4 with ribs 5 In the upper part K 1, an annular gap 6 with vertical partitions 7 , annular baffle 8 and there is a storage tank 9 Between pipes 3 and 4 there can be placed magnetic fluid held by permanent magnets. In K 1 there are nozzles 12 and 13 for removal of respectively the thickened phase and water. Sewage water is fed through nozzles 2 to K 1 and twists. Large fractions under the action of centrifugal forces are thrown to the walls of K 1 and discharged through the pipe 12. Water is discharged through the slit B into the storage tank 9, and from it through the pipe 13. The discharge of oil and oily waste is regulated moving the level by moving the flow of the outer pipe 4 relative to the pipe 5. 2 Cp f-ly, 4 ill. SO with

Description

The invention can be used in the chemical, petrochemical, metalworking industry and other areas of the national economy.

The aim of the invention is to intensify the cleaning process.

FIG. 1 shows the proposed device, the cut; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. A is a device in which magnetic fluid is placed between the tubes, a section, as a seal.

The device comprises a cylindrical body with two tangential inlets 2 for the introduction of masdo and oily waste water, a means for collecting

and removal of oil and petroleum products, made in the form of a pipe joint in a pipe. The inner pipe 3 of the joint is rigidly mounted along the axis of the housing 1, and the outer pipe 4, the inner diameter of which is 0.1-0.2 of the inner diameter of the housing 1, is made in the form of a float and provided with ribs 5 along the entire length, the inner surface of the outer pipe 4 and the outer surface of the inner tube 3 means for collecting and removing oil and oil products at the point of their connection can be made of fluoroplastic.

In the upper part of the cylindrical housing 1 there is an annular slot 6 with vertical partitions 7, oriented

Gj

Gj

In the direction of rotation of the cleaned guda, above the slit 6 there is an annular guide baffle 8 for draining the clarified water into the storage tank 9.

The magnetic fluid 10 held by permanent magnets 11 rigidly mounted in the lower part of the outer tube 4 can serve as a seal of the pipe joint in the pipe.

In the lower part of the housing 1 there is a pipe 12 for the condensed fraction to exit and a pipe 13 for draining water.

The device works as follows.

Sewage water containing oil and oil products, through the input tangential nozzles 2 is fed into the housing 1, where due to the tangential input of wastewater is their rotation. The presence of two tangential nozzles 2 provides a higher rate of rotation of wastewater, which contributes to the formation of a deeper funnel on the surface of the water and facilitates the collection of oil and oil products in the lower part of the funnel. Under the action of centrifugal inertial forces, heavier fractions move and descend along the spiral trajectory to the lower part of housing 1. As the housing 1 is filled, water picks up the outer pipe 4 of the means for collecting and removing oil and oil products and, rotating it, The ribs 5, when rotating the tube 4, allow it to be installed with a uniform gap relative to the inner tube 3. As soon as the upper end of the outer tube 4 approaches the base of the funnel of oil and petroleum products formed on the surface of the water, oil and oil The products begin to flow through pipe 4 into pipe 3, through which they are removed from housing 1,

The water ejected by centrifugal force to the walls of the housing 1 when reaching the annular gap 6, made with vertical partitions, partitions 7 is captured and thrown onto the annular guide baffle 8, located above the annular gap b, and discharged into the storage tank 9, From the tank The accumulator 9 clarified water is discharged through the nozzle 13. The solid fraction as it accumulates is removed from the body through the nozzle 12,

As the housing 1 is being cleaned with water and the outer pipe 4 moves upwards relative to the inner pipe 3, water tends to fill the gap between pipes 3 and 4, but since the inner surface of the outer pipe 5 and the outer surface of the inner pipe 3 are made of water-nonwettable material

the gap itself is very small, the force of the surface tension of the water keeps the water in the gap at a certain height, which is proportional to the force of the surface

fluid tension, wetting surface of the gap surface and inversely proportional to the width of the gap.

In the case when magnetic fluid is used as a seal, the means for collecting and removing oil and petroleum products in the proposed device works as follows.

Water is fed into the housing 1 through tangential nozzles 2, the water begins to rotate for 5 seconds and, as the housing 1 is filled, picks up the outer pipe 4 of the means for collecting and removing oil products and lifts it upwardly relative to the inner pipe 3. As soon as the upper end of the inner pipe 3 reaches the funnel formed from oil and oil products, oil and oil products begin to flow through pipe 3 outside housing 1. With a further increase in the level of purified water in housing 1, the external pipe 4 begins to rise higher relative to the internal pipe 3. The magnetic fluid 10, located between the pipes and held out of flow by two ring magnets 11, rigidly mounted in the lower part of the outer pipe 4, prevents water from penetrating to the end of the inner pipe 3 and allows the outer pipe 4 to freely move relative to the inner pipe 3.

5Thus, the use in an installation for cleaning oil and oil products means for collecting and removing oil and oil products, made in the form of a connection pipe in a pipe, the introduction of wastewater

0 through two tangential nozzles and the output of clarified water through the upper part of the body allows the device to operate in a continuous mode and to ensure a high intensity of wastewater treatment from oil and petroleum products.

Claims (3)

Claim 1. Device for cleaning oil- and oil-containing sewage, comprising a cylindrical body with a tangential inlet nozzle and a nozzle for leaving the thickened fraction, a means for removing and removing oil and oil-containing products, a storage tank characterized by that in order to intensify 5, in the upper part of the body there is an annular slot with vertical partitions oriented in the direction of rotation of the liquid being cleaned, above which there is an annular guide baffle to drain the clarified water in the storage tank, the means for collecting and removing oil and oil products consists of a centrally located inner pipe and a coaxially positioned relative to it with the possibility of axial movement of the outer pipe with ribs placed vertically along its entire length, while the inner diameter of the outer pipe is The float is 0.1-0.2 of the inner diameter of the housing. 2. The device according to claim 1, characterized in that the inner surface of the outer 0 The tube and the outer surface of the inner tube are made of a material that is not wettable with water, for example, fluoroplastic. 3. The device according to claim 1, characterized in that magnetic fluid is placed between the outer and inner tubes and held by ring magnets rigidly mounted in the lower part of the outer tube, the outer and inner tubes being made of a non-magnetic material. one s w 1 13 Shig Wych 2.3 FIG. H Editor N.Fedorova Compiled by D. Baranov Tehred M. Morgental eleven eleven Proofreader I. Muska