RU71113U1 - DEVICE FOR WASTE WATER TREATMENT FROM OILS, OIL AND OIL PRODUCTS - Google Patents

Abstract

The utility model relates to devices for treating wastewater from oils, oil and oil products and can be used at oil refineries, oil depots, motor transport enterprises. The device for treating wastewater from oils, oil and oil products contains a housing (1), separated by guide baffles (8) into compartments and has a supply pipe (2) and a discharge pipe (11), a distributor (3) at the inlet and an accumulation chamber (I) with outlet trays (7) and an outlet pipe (10), an overflow plate (9) forming a discharge cavity with an outlet pipe (11), capillary dividers, each of which is made in the form of an endless closed hydrophobic tape (4) installed in the system broaching rollers, crimp (6) of which laid in their output tray (7). A part of the hydrophobic tape (4) of each capillary separator is located horizontally and with the possibility of immersion in the liquid to be cleaned at the level of its surface layer. The outlet trays (7) have an inclination towards the accumulation chamber (I), and the bottoms of the housing compartments are made inclined to their washing nozzle (12, 13). The proposed device allows to intensify the process of removing pollutants, to increase the productivity and quality of wastewater treatment.

3 s.p. f-ly, 2 ill.

Description

The utility model relates to devices for treating wastewater from oils, oil and oil products and can be used at oil refineries, oil depots, motor transport enterprises.

A device for treating wastewater from petroleum products and other substances is lighter than water (Author's certificate No. 617376, MKL С02С 1/26, publ. Bull. No. 28, 1978), in which particles of oil and oils that have risen to the surface are delivered through collecting trays in special gutters.

A device for treating wastewater from oil and oil products (Copyright certificate No. 173632, C02F 1/40, B01D 17/028, publ. Bull. No. 4, 1997), adopted as a prototype. The device includes a housing divided by a partition into two chambers: accumulation and separation of petroleum products. The oil separation chamber has an inlet pipe for supplying wastewater and a distributor, and an outlet tray with an overflow plate and a pipe for discharging treated water at the outlet. The oil separation chamber is equipped with guide baffles sealed in the bottom and its walls, and collecting baffles made of hydrophobic highly porous L-shaped cellular material, installed by the main part in the guides, and the curved part in the inner pockets of the outlet trays connected by slotted holes in a partition with an accumulation chamber. The accumulation chamber has a viewing window, a pipe with a valve for draining oil products and a pipe with a valve for emergency draining.

In the known device, capillary processes proceed rather slowly, which reduces the cleaning performance. Accumulated petroleum products accumulated in highly porous cellular material (HPMP)

flow into the outlet tray due to gravity, which also slows down the cleaning process. In addition, in this device, the cleaning process is carried out cyclically with periodic regeneration of capillary separators from HPMP, which requires additional installation work.

The technical result, which is achieved by the claimed utility model: the intensification of the process of removing pollutants, increasing the productivity and quality of wastewater treatment.

The technical result is achieved by the fact that in a device for treating wastewater from oils, oil and oil products, comprising a housing separated by guide baffles into compartments and having inlet and outlet pipes, an inlet distributor and an accumulation chamber with an outlet pipe connected to the discharge trays, an overflow plate forming a discharge cavity with a housing with a discharge pipe, capillary dividers, new is that each capillary separator is made in the form of an endless closed hydrophobic tape Installed in the system of pinch rolls, crimping of which are located in its offtake tray.

A part of the hydrophobic tape of each capillary separator is located horizontally and with the possibility of immersion in the liquid to be cleaned at the level of its surface layer.

The output trays are tilted towards the accumulation chamber.

The bottoms of the housing compartments are made inclined to their flushing nozzle.

The essence of the utility model is illustrated in figure 1 - figure 2, where:

Figure 1 - Device for wastewater treatment from oils and petroleum products.

Figure 2 - Device (top view).

Here:

1 - housing; 2 - inlet pipe; 3 - distributor; 4 - hydrophobic tape; 5 - lingering rollers; 6 - crimp rollers; 7 -

outlet tray; 8 - a directing partition; 9 - overflow plate; 10 - exhaust pipe; 11 - outlet pipe; 12, 13 - flushing nozzles.

The device includes a housing 1 with a supply pipe 2 and a discharge pipe 11. Inside the housing 1 at the entrance there is a distributor 3, the guide wall 8 divides the interior of the housing into several compartments. In each compartment there are discharge trays 7 connected to a common storage chamber I with an exhaust pipe 10. Above the discharge trays 7 are broaching rollers 5 of the roller system, of which the crimping rollers 6 are located directly in the discharge trays 7. A hydrophobic highly porous belt 4 is stretched on the rollers material, which passes between two crimp rollers 6. Crimp rollers 6 are located inside the housing 1 so that part of the hydrophobic tape 4 is horizontal and immersed in the cleaned liquid at the level of its surface layer.

The device operates as follows. Contaminated water containing oil products, oils, oil, is sent to the housing 1 through the inlet pipe 2 and the distributor 3. The oil products, oils that have surfaced on the surface of the wastewater are in contact with the portion of the tape 4 immersed in the liquid, are sorbed on the surface and in the thickness of the material of the tape 4 and rise along it due to capillary processes. At the same time, the belt 4 is moved along the system of rollers from an external drive that rotates one of the crimp rollers 6. The speed of hydrotransport of pollutants from the tank with purified water to the discharge tray 7 (Vobsch) is the sum of the speed of capillary rise (Vcap) and the speed of the belt 4 (Vl ):

Vtotal = Vcap + Vl

The tape 4, moving along the rollers, enters the crimp rollers 6, where the sorbed pollutants are squeezed into the discharge trays 7, which transport the pollutants to the accumulation chamber I, from where they

discharged through pipe 10. The hydrophobic tape 4, having passed regeneration through a system of rollers, again falls into the contact zone with waste water - contaminants are continuously discharged. Heavy fractions of pollutants, settling to the bottom of the compartments in the housing 1, tilted to the flushing nozzles 12, 13, are periodically discharged as they accumulate. Wastewater, passing sequentially several compartments, is cleaned of oils, oil and oil products, drains through an overflow plate 9 and is discharged through a discharge pipe 11.

Thus, the device allows to intensify the process of removing pollutants, to increase the productivity and quality of wastewater treatment. In the proposed device, wastewater is purified from surface oils, oil and oil products due to sorption in a hydrophobic highly porous material and continuous removal of contaminants due to capillary processes and the movement of the tape while regenerating the tape by mechanical crimping, and heavy fractions are separated due to gravitational forces.

Claims (4)

1. A device for treating wastewater from oils, oil and oil products, comprising a housing separated by guide baffles into compartments and having inlet and outlet pipes, an inlet distributor and an accumulation chamber with an outlet pipe connected to the outlet trays, an overflow plate forming an outlet pipe with the body cavity with outlet pipe, capillary separators, characterized in that each capillary separator is made in the form of an endless closed hydrophobic tape installed in a system of lingering rollers crimp of which are located in its outlet tray. 2. The device according to claim 1, characterized in that a part of the hydrophobic tape of each capillary separator is located horizontally and with the possibility of immersion in the liquid to be cleaned at the level of its surface layer. 3. The device according to claim 1, characterized in that the outlet trays are tilted towards the accumulation chamber. 4. The device according to claim 1, characterized in that the bottom of the housing compartments are made inclined to its flushing nozzle.