SU1350113A1 - Device for purifying oil- and petroleum-containing waste water - Google Patents

Abstract

The invention relates to devices used in the chemical, petrochemical, metalworking industry and a number of other branches of the national economy and allows for an increase in the cleaning efficiency. ; oil and oily wastewater. A device for cleaning oil and oil-containing waste water contains a cylindrical body (K j 1 with a tangential inlet 2 and a pipe 3 to discharge the thickened fraction. In the upper part K 1 is installed with the possibility of vertical movement of oil and oil collection means 4, the diameter of which is 0.95-0.99 of the inner diameter K 1, and the resulting outer surface is a hyperbolic cosine. 1 ill. OE LED O

Description

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The invention relates to devices for cleaning oil and oil-containing wastewater and can be used in the chemical, petrochemical and metal processing industry and a number of other sectors of the national economy.

The purpose of the invention is to increase the cleaning efficiency of

The drawing shows a device for cleaning oil and oil-containing waste water, a general view of

The device contains a cylindrical housing 1 with a tangential inlet nozzle 2 and a nozzle 3 for outputting the thickened fraction (sludge). In the upper part of the housing 1 there is a means 4 for collecting oil and oil products, the diameter of which is O., 95-0 5 99 of the inner diameter of the copus 1., and the resulting outer surface is a hyperbolic cosine. The means 4 is installed with the possibility of vertical movement along the inner surface of the housing 1 by means of a tilt-up device 5 in the bottom of the cylindrical case of the housing 1 is equipped with a nozzle 6 for draining the clarified water.

A device for cleaning oil and oily wastewater works as follows

Sewage water containing oil and petroleum products, through the tangential outlet nozzle 2, feed into the housing 15 where, due to tangential entry, a submerge occurs and the rotational movement of the fluid in the body is caused by heavier fractions (water and solids) move to the walls of the device and down a helical spiral trajectory into the inner part of the hull 1 The lighter fractions (oil, oil) are concentrated in the paraxial zone and upward flow is carried to the upper part of the hull 1. After filling tim body 1 and the waste water 1ridani rotational movement it overlap the inlet pipe 2 and prekrsschayut supply.

The surface of the fluid, the rotator, in housing 1} takes on a funnel-shaped shape5 varying in time. Light fractions accumulated at the surface of the liquid j flow around the external

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The bottom surface of the oil and oil collecting means 4 rushes into the gap between the housing 1 and the edge: I and the means are collected therein. At the optimum clearance, when the diameter of the collecting means 4 is 0595-0E99 the time until the forming surfaces of the liquid and the outer surface of the collecting means 4 coincide and represent a hyperbolic cosine, the collecting means 4 have time to flow the maximum possible amount (up to 99.3%) of oil and oil products. The flow and collection of oil and oil in the collection means is carried out both by the action of centrifugal inertia forces and by the viscosity properties of oil and oil products.

After collecting the light fractions, the clarified water is discharged through the nozzle 6o. Solid phase (sludge) as it accumulates is discharged from the housing 1 through the nozzle 3. The light fractions are removed from the device by lifting the oil and oil collector 4 with the rotary winder 5, After removal oils and petroleum products from the collection agent 4 water is re-introduced into the housing 1. of the device and the process is repeated

Thus, performing oil and skimming means 4 with a diameter equal to O, 95-0.99 of the inner diameter of the housing I and forming the outer surface, which is a hyperbolic cosine, as well as installing it with the possibility of vertical rotation, will ensure greater reliability and the completeness of the extraction of fractions from wastewater with different concentrations and viscosities of oil and petroleum products, thereby increasing the cleaning efficiency.

Claims (1)

Invention Formula Device DG (purification of oil and oil-containing wastewater containing cylinder-casing with tangential inlet and pipes for output of the condensed fraction and clarified water, the means of collecting oil and oil products installed in the upper part of the body, characterized in that 313501134 In order to increase the efficiency, the cleaning diameter is 0.95-0.99 inward, the means for collecting the oil-diameter of the hull, and the Oil products installed from a possible outer surface is represented by a vertical moving drowsiness, it is hyperbolic cosine.