SU1599103A1 - Apparatus for purification of waste water - Google Patents

Abstract

This invention relates to the treatment of industrial effluents and can be used in the chemical and other industries. The apparatus includes a preclean hydrocyclone 1 with a drain chamber 2, a fine cleaning hydrocyclone 3 with drain chambers 4 connected to a sludge hopper 5, chambers 6, 7 for collecting oil products with conical bottoms 8, 9, drain pipes 10 and oil removal pipes 11. Hydrocyclone 1 is equipped with a drain pipe 12, pipe 13, and hydrocyclones 3 are connected by a drain pipe 10 with a drain chamber 14, and pipe 11 with a common oil collection chamber 15, the camera 14 having a pipe 16 for draining the clarified liquid. The original wastewater enters the hydrocyclone 1, where the separation of heavy inclusions is discharged into the sediment bunker 5. The flow through the discharge nozzle 12 and the discharge chamber 2 enters the hydrocyclones 3, where the separation of small inclusions, as well as oil products and the water itself, discharged through chamber 14 and the drain pipe 10. 1 Il.

Description

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The invention relates to the treatment of industrial effluents, namely, devices for clarifying waste liquid through the separation of heterogeneous media under the action of centrifugal forces, and can be used in the chemical industry, oil refining and other industries. .

The aim of the invention is to increase the degree of wastewater treatment from substances with a specific gravity of less than one.

The drawing shows schematically the proposed apparatus for wastewater treatment, a slit.

The device includes a hydrocyclone 1 pre-cleaning with a drain chamber 2, hydrocyclones 3 fine cleaning with drain chambers 4, connected with sediment hopper 5 (thickened suspension). Hydrocyclones are equipped with chambers 6 and 7 for collecting oil products with conical bottoms 8 and 9. Hydroclones 3 are connected to drain nozzles 10, and after these chambers - to oil products nozzles 11, in front of chambers 6 and 7.

Bottoms 8 and 9 are arranged in narrowed portions upwards in the direction of movement of oil product separated from wastewater. Their expanding parts are rigidly attached around the perimeter of the lower ends of the respective oil collection chambers and have perforations to remove suspended solids. The hydrocyclone 1 is pre-cleaned with a drain pipe 12, and the chamber 2 above the pipeline is located above it. waters 13 is connected to the chambers of hydrocyclones 3 fine cleaning. Hydrocyclones 3 are connected by drain pipes 10 with a drain chamber 14, and a pipe connection is. mi 11 - with a common camera 15 collection of petroleum products. Moreover, the chamber 14 has a pipe 16 for removal of the clarified liquid.

The apparatus operates as follows. The initial wastewater under pressure enters the pre-treatment hydrocyclone 1, where the separation of heavy large inclusions (suspended solids) contained in the wastewater occurs. Heavy inclusions are discharged through the sand outlet to the bunker 5 of the sludge, and the main effluent stream flows through the drainage section.

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the side 12 of the hydrocyclone 1 into the drain chamber 2. At the same time, the oil products contained in the waste water are grouped. in the center of the upward vortex flow and by inertia are carried out through the central hole of the conical bottom 8 into the oil collection chamber, where they are grouped in its upper

parts. The main stream, cleaned from large particles and the main part of petroleum products, enters through pipe 13 into GIDROTSI-SONS 3 fine cleaning. In hydrocyclones 3 fine cleaning

 smaller bridges (suspended substances) are separated. Suspended substances are discharged into the sediment bunker 5, and the main stream enters through the drain pipes of 10 hydrocyclones 3 into the drain chambers 14. At the same time, the oil products contained in the waste water are also grouped in the center of the upward vortex flow and by inertia are carried out through the central openings of conical bottoms 9 into the chamber 7 of the collection of petroleum products, where they are grouped in its upper part, and through pipes 11 enter into the common chamber 15 of the collection of petroleum products, from which periodically or not discontinuously diverted. Suspended parts carried by the flow into chambers 6 and 7 are deposited on their walls and bottoms 8 and 9 and slide through the perforations into the drain chambers 2 and 4. The fine cleaning in hydrocyclones 3 is cleaned out of the drain chamber 11 through the drain nipple 10 in the pipeline 16.

The proposed apparatus has the following advantages: light inclusions (petroleum products) are grouped in the center of the upward vortex flow and are freely carried through the central opening of the bottom into the collection chambers, which is facilitated by the arrangement of the central opening of the casing upwards and the walls of the casing that guide pop-up oil products the presence of openings in the wide lower part around the perimeter allows suspended substances carried out with the flow and deposited on the walls of the chambers and the bottom to slide freely into willow chamber.

5 Thus, the proposed apparatus for wastewater treatment increases the degree of purification of wastewater from suspended substances and petroleum products, which

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extends the range of use of hydrocyclones.

Claims (1)

Claims of waste water treatment apparatus containing a pre-cleaning hydroclone with a tangential inlet nozzle and a drain nozzle, with an oil collection chamber, including a conical bottom and an oil withdrawal nozzle, and with a drain chamber, fine hydrocyclones, whose inlets are connected to a drainage chamber hydrocyclone pretreatment, characterized in that, in order to increase the degree of wastewater treatment from substances with a specific weight less than one 1599103 The fine cleaning hydrocyclones are equipped with oil collection chambers and drain chambers, between which there are perforated conical bottoms with central holes, the narrowing part of which is made in the direction of the flow, and the hydrocyclones of thin cleaning are connected to the corresponding chambers pre-cleaning hydrocyclone chambers, conical bottom of the pre-treatment hydrocyclone oil recovery chamber made of perforated and is located by a narrowing part in the direction of movement of oil products separated from wastewater.