RU2709697C1 - Device for removal of surface layer of oil-containing liquids - Google Patents

Abstract

FIELD: water and air purification technology.

SUBSTANCE: invention relates to devices for removal of surface layer of oil-containing liquids and can be used in treatment facilities of water supply and sewerage, in chemical, metal-working and other industries when cleaning process, lubricating-cooling liquids and detergent solutions from foreign organic impurities, as well as for removal of oil products from surfaces of water bodies of rivers, lakes, seas, oceans. Device for removal of surface layer of oil-containing liquids contains floating oil-collecting device in form of belt conveyor, consisting of endless perforated on sides tape from oil-resistant material, mounted on three hollow sealed drums, one of which is made drive, and other – driven, having at ends of one sprocket to drive perforated on sides tape and attached together with belt hingedly using supports on movable frame. Float is arranged between hollow drums and belt branches in the form of hollow or filled tight container of rectangular cross section, attached to the movable frame with the possibility of rocking together with the belt perforated on the sides and the driving drums relative to the surface layer of oil-containing liquids around the axis of the driving drum, mounted on two supports to fixed frame together with drive. Proposed device comprises drain system composed of two drain trays that play the role of scrapers with possibility of contact with endless belt at point of installation on movable frame and have cross-section mirrored profile of belt. Perforated belt on lateral side is wavy, sinusoidal on both sides as shown in fig. 4. Float in longitudinal section represents a segment in longitudinal section of conveyor equipped with additional float-type tank in the form of tight hollow drum with possibility of swinging by means of spring and carrier attached to moving frame of conveyor. Driving and driven drums are made as shown in fig. 4, 6 in order to free penetration of surface layer of oil-containing liquids on internal and external surface of tape and reduction of surfaces of oil extrusion above tops of sinusoid by driving drum. Drum rings have discontinuous surfaces, while the ledges and recesses of the rings are shifted against each other in axial direction.

EFFECT: higher efficiency and quality of removal of surface layer of oil-containing liquids.

1 cl, 8 dwg

Description

Device for removing the surface layer of oily liquids

The invention relates to a device for collecting the surface layer (for example, oil) of oily wastewater or other immiscible liquids and can be used to collect oil products from the surfaces of water bodies of rivers, lakes, seas and oceans, as well as in wastewater treatment plants for water supply and sanitation in chemical, metalworking and other industries in the purification of technological, cutting fluids from organic impurities.

The claimed invention is aimed at solving the problem, which is to provide increased productivity and quality of removal of the surface layer of oily wastewater.

Known devices and methods for removing the surface layer of oily liquids by chemical means (see, for example, international media about the environmental disaster in the Gulf of Mexico in the accident of an oil production unit). As a result of the deposition of oil at the bottom of the bay, not only the ecological safety of the animal world was violated, but the work of oil workers was also destroyed.

A device for collecting oil from the surface of the water (see RF patent No. 20046549. A device for collecting oil from the surface of the water / Ivanov VG IPC EV 02/15. Publ. In BI No. 2, 1994), including floating oil collection means in the form of a conveyor belt containing an endless belt of oil-resistant material with transverse folds absorbing oil and attached to an endless belt, two drums (one leading, the other driven). Between the driving drum and the endless belt, a squeezing roller is built in, at the bottom of which there is a drain tray for draining the squeezed oil products into the storage tank. All oil sump is placed on the boat. One of the main disadvantages of this device is the low quality and performance of the collection of petroleum products, which contain a large amount of water (up to 20%), trapped by the transverse lining as a result of adsorption.

Also known is a device for removing the surface layer of oily liquids (see RF patent No. 2490213 IPC C02F 1/40. Publ. In BI No. 23, 2012).

A device for removing the surface layer of oil-containing liquids, containing a floating oil-collecting device, made in the form of a conveyor belt, consisting of an endless perforated tape on the sides mounted on hollow sealed drums, one of which is made leading, having one asterisk at the ends to drive the perforated tapes and pivotally fixed together with the tape using supports on a movable frame, while a float in the form of a fixed tank attached to a movable frame and made with the possibility of swinging together with a conveyor belt relative to the surface layer of oil-containing liquids around the axis of the drive drum mounted on two supports to a fixed frame together with the drive, a drain system made in the form of a drain tray mounted on a fixed frame with the possibility of contacting it with an endless tape at the place of installation of the fixed frame, and to reduce friction of the tape perforated on the sides with the surfaces of Abans and a float between these surfaces mounted skis attached to the surfaces of the drums and the float, while the fixed frame is designed to be installed on the deck of a self-propelled vessel in its bow or on the deck of a self-propelled barge in the bow or on a settling tank in the workshop, the perforated tape on the sides is made, for example, of polypropylene and mounted on three hollow airtight drums with the formation of a conveyor in the form of a sector, moreover, two drums are driven, and the float has a longitudinal The sectional shape of the sector to increase the contact area between the conveyor belt and the surface layer of oily liquids.

The disadvantages of this device include low productivity due to the small area of adhesion of petroleum products to the conveyor belt.

EFFECT: increased productivity and quality of removal of a surface layer of oily liquids.

The technical result is achieved in that a device for removing the surface layer of oily liquids containing a floating oil collector in the form of a conveyor belt, consisting of an endless perforated tape on the sides of an oil-resistant material mounted on three hollow sealed drums, one of which is made leading, and the other - followers with one sprocket at the ends to drive the perforated tape on the sides and fixed together with the tape pivotally using supports on the bottom a frame, while between the hollow drums and the branches of the tape there is a float in the form of a hollow or filled sealed container of rectangular cross-section attached to the movable frame with the possibility of swinging along with a perforated tape on the sides and the driving drums relative to the surface layer of oily liquids around the axis of the driving drum, mounted on two supports to a fixed frame together with the drive, a drain system made in the form of two drain trays, also playing the role of a scraper the chance of contact with the endless belt at the installation site on the movable frame and in cross section have a mirroring strip profile, wherein the perforated belt is formed on the sides of an undulating, sinusoidal with two sides, as shown in FIG. 4, and the float in the longitudinal section is a segment in the longitudinal section of the conveyor, equipped with an additional float tank in the form of a sealed hollow drum with the possibility of swinging using a spring and a carrier attached to the movable frame of the conveyor, while the driving and driven drums are made as shown in FIG. 4, 6 in order to freely enter the surface layer of oily liquids on the inner and outer surfaces of the tape and reduce the extrusion surfaces of the oil above the tops of the sinusoid by the driving drum, the drum rings having discontinuous surfaces, and the protrusions and troughs of the rings are axially offset from each other.

The closest in technical essence to the claimed invention is the selected device for removing the surface layer of oily liquids selected as a prototype (see RF patent No. 2637135 IPC ЕВВ 15/04, C02F 1/40, published in BI No. 34, 11/30/2017).

A device for removing the surface layer of oily liquids containing a floating oil-collecting device in the form of a conveyor belt, consisting of an endless perforated belt of oil-resistant material mounted on three hollow airtight drums, one of which is made leading, and the other driven, having ends at the ends one asterisk for driving the perforated tape on the sides of the tape and fixed together with the tape pivotally with the help of supports on the moving frame, while between the hollow drums The float in the form of a hollow or foam-filled sealed container of rectangular cross-section, attached to a movable frame and made with the possibility of swinging together with a perforated tape on the sides and driving drums relative to the surface layer of oily liquids around the axis of the drive drum mounted on two supports to a fixed frame together with the drive, a drain system made in the form of a drain tray, also playing the role of a scraper with the possibility of matching touching it with an endless belt at the place of installation of the fixed frame, and the perforated tape on the sides is made in the form of a sinusoid in the form of a sinusoid on one side, and the float in the longitudinal section is a segment, the scraper in the cross section copies the profile of the wave-like belt, and the conveyor contains an additional capacity - a float in the form of a sealed hollow drum with the ability to swing using a spring and carrier attached to a movable conveyor frame, characterized in that it is perforated The tape on the sides was made wavy in cross section on both sides sinusoidally - on the upper side the profile changes in a positive sinusoid, on the inside - in the negative, and an additional scraper is built in from the inside to increase the oil removal performance, and the drums are made smooth.

The prototype and the claimed invention have the following similar essential features.

A device for removing the surface layer of oily liquids containing a floating oil-collecting device in the form of a conveyor belt, consisting of an endless perforated belt of oil-resistant material mounted on three hollow airtight drums, one of which is made leading, and the other driven, having ends at the ends one asterisk for driving the perforated tape on the sides of the tape and fixed together with the tape pivotally with the help of supports on the moving frame, while between the hollow drums The float in the form of a hollow or filled airtight container of rectangular cross section attached to the movable frame with the possibility of swinging together with a perforated tape on the sides and driving drums relative to the surface layer of oil-containing liquids around the axis of the drive drum mounted on two supports to the fixed frame together with the drive, a drain system made in the form of two drain trays, also playing the role of scrapers with the possibility of their contact with the echnoy ribbon at the installation site on the movable frame and in cross section have a mirroring strip profile, wherein the perforated belt is formed on the sides of an undulating, sinusoidal with two sides, as shown in FIG. 4, and the float in longitudinal section is a segment in the longitudinal section of the conveyor, equipped with an additional float tank in the form of a sealed hollow drum with the possibility of swinging using a spring and carrier attached to the movable frame of the conveyor.

In relation to the prototype, the claimed invention has the following distinctive features: the driving and driven drums are made as shown in FIG. 4, 6 in order to freely enter the surface layer of oily liquids on the inner and outer surfaces of the tape and reduce the extrusion surfaces of the oil above the tops of the sinusoid by the driving drum, the drum rings having discontinuous surfaces, and the protrusions and troughs of the rings are axially offset from each other.

The invention is illustrated in the drawing, where in FIG. 1 shows a device for removing the surface layer of oily liquids, side view; in FIG. 2 is a rear view, in FIG. 1, in FIG. 3 is a plan view of FIG. 1, in FIG. 4 is a section bb in FIG. 2, in FIG. 5 is a section GG in FIG. 2, in FIG. 6 is a section DD in FIG. 3, in FIG. 7 is a section EE in FIG. 4, in FIG. 8 - section FJ in FIG. 4.

A device for removing the surface layer of oily liquids includes a container with oily liquid 1 (Fig. 1), oil collecting means 2, a movable frame 3, fastened by two shells, perforated tape 4 on the sides (Fig. 1-6), a stationary frame 5, sprocket 6, chain 7, sprocket 8, drive 9 mounted on a fixed frame 5 and used to transmit torque to the oil assembly 2 using a gear motor, sprockets 6 and 8 and chain 7, a drain system consisting of two scraper trays 10 flexible hoses 11 (Fig. 1-3), will complement flax float 13 as a sealed container of cylindrical shape having swingably via carrier 14, springs 15 around the axes of supports 16. Furthermore, a tensioner for the tape 17, comprising a rod with a roller 18, the weep means comprises a hermetic vessel and filled with foam. Perforated on the sides of the tape is made wavy, sinusoidal on both sides (Fig. 4). The oil-gathering means is mounted on a fixed frame 5 using two supports 19 (Fig. 4), and contains a drive 20 and two driven 21 drums (Figs. 4, 6), have one sprocket 23 at the ends (Fig. 6).

The whole oil-gathering means is placed on a movable frame 3, fastened by two shells 22 (Fig. 6) and having the ability to swing around the fixed axis of the supports 19 (Fig. 4).

It should be noted that, unlike the prototype, the driving 20 and driven 21 drums are made as shown in FIG. 4, 6 in order to freely enter the surface layer of oily liquids on the outer and inner surfaces of the tape and reduce the extrusion surfaces of the oil above the sine wave tops of the driving drum due to the discontinuity of the rings of the drums 24, 25 (Figs. 4, 6, 7, 8), protrusions and the hollows of the rings are displaced against each other in the axial direction.

A device for removing the surface layer of oily liquids works as follows. After the emergence of petroleum products on the surface of the tanks-settlers 1 or on the surface of large reservoirs (rivers, lakes, seas, oceans) floating oil gathering tool 2 is lowered to the surface of the liquid. When rotating the hollow sealed drums 20, 21 (Fig. 4, 6), mounted together with the perforated tape 4 and the float 14 on the movable frame 22 (Fig. 6), using the drive 9 (Fig. 1) sprockets 6 and 8 , chains 7 mounted on a fixed frame 5, perforated on the sides of the tape 4 using the sprockets 23 (Fig. 6) is set in motion. Oil products adhere to the surface of the tape, where the walls of both scraper trays are removed and dumped into the storage tank for oil products 12 (Fig. 1).

Thus, due to the developed surface of the tape and drums with intermittent rings, the productivity and quality of removal of oil products from the surfaces of water bodies increases by about 2 times, with respect to the prototype, the float in the form of a sealed or foam-filled container is made in the form of a segment, since the upper part of the sector not involved in improving the buoyancy of the device.

Claims (1)

A device for removing the surface layer of oily liquids containing a floating oil-collecting device in the form of a conveyor belt, consisting of an endless perforated belt of oil-resistant material mounted on three hollow airtight drums, one of which is made leading, and the other driven, having ends at the ends one asterisk for driving the perforated tape on the sides of the tape and fixed together with the tape pivotally with the help of supports on the moving frame, while between the hollow drums The float in the form of a hollow or filled airtight container of rectangular cross section attached to the movable frame with the possibility of swinging together with a perforated tape on the sides and driving drums relative to the surface layer of oil-containing liquids around the axis of the drive drum mounted on two supports to the fixed frame together with the drive, a drain system made in the form of two drain trays, also playing the role of scrapers with the possibility of their contact with the echnoy ribbon at the installation site on the movable frame and in cross section have a mirroring strip profile, wherein the perforated belt is formed on the sides of an undulating, sinusoidal with two sides, as shown in FIG. 4, and the float in longitudinal section is a segment in the longitudinal section of the conveyor, equipped with an additional float tank in the form of a sealed hollow drum with the possibility of swinging using a spring and carrier attached to the movable frame of the conveyor, characterized in that the driving and driven drums are made, as shown in FIG. 4, 6 in order to freely enter the surface layer of oily liquids on the inner and outer surfaces of the tape and reduce the extrusion surfaces of the oil above the tops of the sinusoid by the driving drum, the drum rings having discontinuous surfaces, and the protrusions and troughs of the rings are axially offset from each other.

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