SU309942A1 - DEVICE FOR EXTRACTION OF OILS, PETROLEUM PRODUCTS - Google Patents

Description

This invention relates to the field of wastewater treatment.

A device for clarifying a liquid is known, comprising a housing within which there is a vertical shaft with a screw. The known device gives a small cleaning effect.

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

In the proposed device, a truncated cone is provided inside the tank, provided with distribution chutes with slots in the lower part and closed channels in the upper part, and the pipe with the screw in the upper part has a slot with a grid and squeezing rollers connected to the cone channels.

The drawing is a diagram of the device.

The device consists of a vertical tank / with a wastewater supply pipe 2 and a system of perforated pipes 3 for draining purified water, channels 4, distributing the incoming water through blocks 5, channels 6 through which excess sorbent chips are squeezed out of the working zone of the tank to the squeezing rollers 7, of the screw 8 transporting the pressed curl to the lower part of the working zone of the reservoir through the pipe 9, the tank 10 for receiving the pressed contaminants, the pipeline 11 for withdrawing waste contaminants out of the installation.

a drive (not shown), slits 12 for non-repartitioning of water washing the pressed chips into tank 10.

The operation of the device for the purification of waste water from oil, oil and grease is as follows.

The tank is loaded with chips (e.g. polyurethane). Sewage water coming through the pipeline 2 fills the distribution chutes 4 and through the slots 5 enters the tank filled with crumbs that delay oil, oils and fats; After being filtered through a layer of sorption material, the water is freed from contamination, collected by a system of non-forged pipes. 3 p is taken outside the device.

The crumb, which is lighter than water, in the upper conical part is displaced into the channels 6, which is also promoted by the direction of the jets leaving the slots 5 into the tank. At the end of the channel, the rotating rollers 7 pick up the incoming chips and squeeze out accumulated contaminants from it, which fall through the mesh bottom of the channel into the tank 10

for receiving contaminants from where it is discharged from the device by pipeline.

Squeezed out of dirt crumbs 1 are rotated by the blades of ppük 8 and transported to the bottom of the tank. Part of the purified water from the bottom of the tank enters the pipe 9 and moves oppositely to the pressed lid, washing it from residual contaminants. In the upper part of the pipe 9, a slot 12 is arranged, blocked by a grid, through which the washing water enters the tank 10 for receiving contaminants and together with them is led through the pipeline 11 into a settling tank (not shown) where sorbed contaminants and water are separated. account of the difference in specific weights. The distilled water from this tank is returned to the cleaning unit. Thus, the proposed device can provide the same cleaning effect as in sand filters, but it compares favorably with the latter by ease of regeneration of the load, continuity of the technological process, fully automated under these conditions, and much lower energy costs. Object of the Invention A device for extracting oils, petroleum products and fats from wastewater, including a vertical reservoir with a porplast filtering material, supply and discharge pipelines, distribution troughs, a system of perforated pipes for discharging purified water, a pipeline with an auger located in the central part of the reservoir, and a drive, characterized in that, in order to increase the cleaning efficiency, a truncated cone is located inside the tank, equipped with distribution chutes with slots in the lower part and closed channels in the upper part, and the pipe with a screw in the upper part has a slot with a grid and squeezing rollers connected to the cone channels.

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