RU2233951C2 - Device for separation of two immiscible fluids - Google Patents

Abstract

FIELD: devices for separation of immiscible fluids; cleaning of waste water from petroleum products.

SUBSTANCE: proposed device is provided with coalescence filter in form of layer of fluid at lesser specific gravity; device is made in form of reservoir with vertical partitions forming sections - communicating vessels; even vertical partition has lower water duct and odd vertical partition has upper overflow; each subsequent odd partition is below previous one; filter has horizontal slotted partitions. Device is additionally provided with vertical partitions forming system of sections with filter in each section.

EFFECT: enhanced efficiency.

1 dwg

Description

The invention relates to a device for the separation of two immiscible liquids and can be used for wastewater treatment of storm sewers from oil products.

There are numerous devices for treating wastewater from pollutants, for example, “Sewer pipe drop” (USSR author's certificate No. 1463882, E 03 F 5/00, 1987), “Device for intensifying the process of self-cleaning of a watercourse by repeatedly mixing air from the wastewater from atmosphere and water of the watercourse ”(AS USSR No. 1472591, E 03 F 1/00, 1988).

However, the disadvantage of the above technical solutions is their low efficiency in cleaning sewage from oil products.

An analogue of the invention is a “Device for wastewater treatment from petroleum products” (RF patent No. 2108429, E 03 F 5/00, 04/10/1998), which uses a liquid layer with a lower specific gravity as a separating element. The device is made in the form of a vessel, divided by partitions into chambers, which are connected by a pipe in the form of a knee, facing the curved part up.

The design is ineffective, since the liquid arriving for cleaning is contaminated by emerging oil products at the preliminary treatment stage in a settling chamber. The device has the disadvantage of reducing the surface of the separating element in the form of a liquid layer with a lower specific gravity to the cross-sectional area of the pipeline.

The closest analogue is a device for separating two immiscible liquids with different specific gravities - oil products contained in water, using a coalescent filter as a separating element - a layer of liquid with a lower specific gravity, made in the form of a container with vertical partitions installed in it, forming sections - communicating vessels, with an even vertical partition having a lower watercourse, an odd vertical partition having an upper overflow, and each subsequent indicated The second odd partition is lower than the previous one, and with a filter with horizontal slotted partitions (AS USSR No. 194573, E 03 F 1/00, 05/30/1967). The design is ineffective due to the increased concentration of petroleum products on the periphery of the separation layer of liquid with a lower specific gravity, which leads to contamination of the effluent for purification. The design is uneconomical due to the constant discharge of fluid with a lower specific gravity through the funnel.

The aim of the invention is to increase the efficiency of the device for wastewater treatment by reducing the concentration of floating oil products in the liquid layer with a lower specific gravity, increasing the surface of the coalescing (based on sticking drops of oil products when they are in contact) filter to the optimum.

The essence of the invention lies in the fact that the device for the separation of two immiscible liquids with different specific gravities - oil products contained in water, using as a separating element - coalescence filter - a layer of liquid with a lower specific gravity, made in the form of a container with installed vertical the partitions forming sections are communicating vessels, the even vertical partition having a lower watercourse, the odd vertical partition having an upper overflow and each subsequent the indicated odd partition below the previous one, and the filter with horizontal slotted partitions, is equipped with additionally specified vertical partitions, and partitions with a lower watercourse and vessel walls form a system of sections, each of which contains a filter with horizontal slotted partitions, made removable vertically moving, recessed into the upper part of the specified coalescence filter and made in the form of a hollow filled with filler - sorbent containers with peripherals corresponding to th section of the perimeter.

The proposed device is shown in the drawing. It is a container 1, divided by vertical partitions into sections 2. Sections form a system of communicating vessels in such a way that the vessel wall with an inlet pipe and the vertical partition 3 with a gap between the bottom of the vessel and the partition form a receiving section; subsequent vertical partitions with a lower watercourse form a system of sections. The sections are divided by vertical partitions with an upper overflow of liquid 4 so that at each subsequent from the inlet pipe of the partition, the upper edge of the partition is lower than the previous one. The last, cumulative section 5 is formed by means of a vertical partition with a lower watercourse, a vertical partition with an overflow and the wall of the vessel with a supply pipe. Each section contains a coalescing filter 6 immersed in the upper part of the liquid layer with a lower specific gravity, a filter 7 with a sorbent filler 8. The filter is made in the form of a hollow container with a perimeter corresponding to the perimeter of the section. The sorbent container is made with the possibility of vertical movement for subsequent regeneration, with horizontal slotted partitions 9 for mechanical cleaning of the liquid.

The device operates as follows. The liquid to be cleaned through the inlet pipe enters the receiving section 2 of the device, in which the liquid is first cleaned of suspended solids by means of horizontal slotted partitions 9, a filter from the sorbent 7. Then the liquid is cleaned in the coalescing filter 6 in the form of a liquid layer with a lower specific gravity. Further, the pop-up oil products are absorbed by the sorbent 8. When the sorbent is saturated with oil products, the filter 7 is vertically removed from section 2 for subsequent regeneration of the sorbent and cleaning of the mechanical filter from the horizontal horizontal partitions 9. The gravity fluid is formed by a system of communicating vessels from the walls of the tank and vertical partitions with lower and upper partitions overflow of fluid, enters the subsequent sections of the device, and then into the consumable section, which contains the exhaust pipe. The container sections are made similar to each other. The number of sections and the type of sorbent are selected depending on the type and volume of incoming contaminated water.

Thus, the goal of increasing the efficiency of treatment of storm sewage is achieved by the very design of the device, which is made in the form of a system of interconnected vessels. The device is designed with the possibility of optimal selection for the type of liquid being cleaned, the filter volume based on coalescence, the number of filters based on the sorbent, the possibility of operating the device without stopping based on selective regeneration of the adsorbent, the use of horizontal slotted walls to clean the liquid from mechanical impurities.

Claims (1)

A device for separating two immiscible liquids with different specific gravities - oil products contained in water, using a coalescent filter as a separating element - a liquid layer with a lower specific gravity, made in the form of a container with vertical baffles installed in it, forming sections - communicating vessels moreover, an even vertical partition has a lower watercourse, an odd vertical partition has an upper overflow, and each subsequent specified odd partition is lower than the previous one her, and a filter with horizontal slotted partitions, characterized in that it is equipped with additionally specified vertical partitions, and partitions with a lower watercourse and container walls form a system of sections, each of which contains a filter with horizontal slotted partitions, made removable vertically moving, recessed into the upper part of the specified coalescence filter and made in the form of a hollow filled filler - sorbent container with a periphery corresponding to the perimeter of the section.