SU617376A1 - Device for purification of waste water from petroleum products and other matter which is lighter than water - Google Patents

Description

thanks to which its flows are divided into four directions — to the sides, up and down.

In the first section A, the largest oil inclusions are released from the effluent, which is facilitated by the oil retaining partition 4, which is lowered from the upper base of the body of the device 1 into the box-like recess 5 of the bottom and creates hydrostatic pressure on the oil particles.

Large oil inclusions float to the surface and overflow as they accumulate through the upper forming protective precast partition 6 into the trench 7. Due to the constantly flowing water in section A, a downward flow is created, and this flow interferes with the raised oil particles in the lower part of the device. upward, the protective partition 6 separates the moving stream and forms between itself and the oil retaining partition 4 a zone in which the oil particles ascend. In addition, between the ends of the protective-prefabricated partition b and oil-retaining partition 4, located in the lower part of the duct of the recess 5, the circulation of water and oil particles is created, where under the action of centrifugal force, part of them is detached and lifted between these partitions.

The raised oil particles accumulate in the upper part between the collecting chute 7 and the protective collecting partition 6. Between the protective collecting partition b and the end of the chute 7, there is a gap through which the oil collected in the chute 7.

According to the law of communicating vessels, water with inseparable oil particles enters section B, which has a larger volume than section A. At the same time, through the baffle 8, the flow of water and oil particles is directed to the upper part of section B, where oil particles are trapped because speeds here are lower than in section A. In this section, in addition to chute 7, there are also collection trays 9, which increase the perimeter of the collection margin and reduce the storage area of the oil product and the thickness of its layer.

The transition of water from section B to section C is similar to its transition from section A to section B. The main purification of water from oil occurs in section A and B. Section C collects randomly torn particles

of oil. The refined water in three sections of the device is encountered with a water retaining partition 11 equipped with an overflow plate 12. The overflow plate 12 adjusts the operation of the device to the minimum or maximum oil product layer in the sections depending on the performance of the device.

The edges of the collecting grooves 7 and the collecting trays 9 and 1U are located at the same level in all three sections. The overflow plate 12 is installed below the level of the edges of the gutters and chutes by the amount required

sections for the design performance of the device, due to which there is an overflow of water and its discharge. Purified water exits through nozzle 13, located below the inlet nozzle 2. Falling into

prefabricated channels 7, the oil is discharged through the nozzles 14 into a storage tank, from where it returns to the production cycle.

Claims (3)

1. A device for sewage treatment from oil products and other substances lighter than water, including a housing, inlet and outlet pipes, oil-retaining and partition walls and discharge trays, characterized in that, in order to increase the efficiency of separation and collection of petroleum products, it is provided with protective-partitioned partitions, placed in front of the pep-retaining partitions and made of two plates installed at an angle to one another 135-145 °, and the trays are located in the upper part of the oil-retaining partition. 2. A device according to claim 1, characterized in that the first, in the course of the fluid flow, the protective partition wall is provided with a guide visor, and the subsequent ones - collecting trays attached to the upper edges of the safety partition walls. 3. A device according to Claim 1, characterized in that it is provided with an overflow with ilastina placed behind the latter along the liquid with a guide partition. Sources of information taken into account in the examination 1. Patent Czechoslovakia № 110608, cl. 75c 6/02, 1963. / j Ipuz.l