RU71730U1 - Industrial technological complex for the processing and disposal of oil-containing waste - Google Patents

Industrial technological complex for the processing and disposal of oil-containing waste Download PDF

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Publication number
RU71730U1
RU71730U1 RU2007139480/22U RU2007139480U RU71730U1 RU 71730 U1 RU71730 U1 RU 71730U1 RU 2007139480/22 U RU2007139480/22 U RU 2007139480/22U RU 2007139480 U RU2007139480 U RU 2007139480U RU 71730 U1 RU71730 U1 RU 71730U1
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Russia
Prior art keywords
oil
scrubber
containers
tanks
water
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RU2007139480/22U
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Russian (ru)
Inventor
Юрий Петрович Кудрявский
Николай Федорович Калинин
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ООО Научно-производственная экологическая фирма "ЭКО-технология"
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Priority to RU2007139480/22U priority Critical patent/RU71730U1/en
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Abstract

The proposed utility model relates to the field of oil refining and oil industry, in particular to production complexes, plants, sections, processing lines and departments for the processing, neutralization and disposal of various oil-containing production wastes. The objective of the proposed utility model is the creation of an industrial-technological complex for the processing of multicomponent oily waste products of complex composition with the extraction and utilization of oily fractions, the isolation of the solid phase in a form suitable for subsequent briquetting and / or tabletting. The technical result that can be obtained by implementing the claimed technical solution is to reduce energy costs for the processing of oil waste and their disposal. The problem is solved with the achievement of the above technical result of the proposed utility model - "Industrial technological complex for the processing and disposal of oily waste", including heated receiving-averaging tanks, strainers, pumps, pipelines with shut-off and control valves, heated and heat-insulated intermediate tanks, containers for collecting the solid phase, prefabricated containers for oil products purified from foreign impurities. New in the proposed utility model is that the intermediate tanks are connected to the unit for the preparation and dosage of chemicals for oil sludge treatment, and the output from the intermediate tanks through the pumping system is directed to a high-speed three-phase centrifuge connected to collectors
of oil and water fractions and containers for collecting the solid phase extracted from oil sludge, the containers have screw connections with mixer dryers, the outlet of which is connected by a screw conveyor to the feed hopper of a thermal desorber heated by flue gases and made in the form of an inclined rotary tube furnace and placed in a motionless - an installed case of a thermal desorber equipped with an unloading device made in the form of a water-cooled pipe with a discharge screw conveyor with a hollow water by the cradle shaft, the exit from the unloading device is directed to containers-containers of heat-treated materials sent to the briquetting system, the output chamber of the thermal desorber is connected to an irrigated scrubber for cleaning exhaust gases from dust, low-boiling condensing hydrocarbons, the scrubber is equipped with a drop-, mist eliminators installed in the upper part of the scrubber , the suspension of the oil-dust suspension from the lower zone of the scrubber through a circulation pump is directed to a filter system connected to a condensate collecting tank With the help of oil that has leaked and through a water-cooled heat exchanger with an oil-scrubber system, the collection tank also has a connection to tanks (capacity) for storage and subsequent shipment to consumers of cleaned oil products (oils) from impurities; after filters for cleaning oil from suspended particles, a collector of solid phase trapped in the scrubber collector has connections with mixer dryers, is also connected to these dryers through a metering hopper with oil-contaminated earth, for output from the top volatile hydrocarbons of the scrubber above the dustproof eliminators mounted fitting, with a compound having dozhigatelnoy combustion chamber equipped with a burner and a blower, connected directly to dozhigatelnoy chamber and burner outlet the hot flue gases from the combustion chamber is directed dozhigatelnoy
a fan is installed at the inlet of the thermal desorber and in the mixer-dryers for the output of cooled flue gases from the thermal desorber.

Description

The proposed utility model relates to the field of oil refining and oil industry, in particular to production complexes, plants, sections, processing lines and departments for the processing, neutralization and disposal of various oil-containing production wastes.
Known (RF Patent No. 2174957 for application No. 2000112309/12 with a priority of 05/18/2000; Published: 10/20/2001 IPC 7 C02F 1/40; 103: 34) "Installation for cleaning oil sludge."
The well-known "Installation" contains (Fig. 1): a pump (1), a magnetic processing apparatus (2), a heater (3) with an acoustic system (4), a coarse filter (5) with an acoustic system (6), a centrifuge (7 ), a fine filter (8) with an acoustic system (9), a separator (10), a combined waste treatment tank (11), a waste separation device (12), a process water outlet device (14), an oil sludge return device (15), demulsifier supply system (16) and flocculant supply system (17).
Installation for cleaning sludge works as follows. Oil sludge is pumped (1); The demulsifier solution is dosed into the oil sludge stream by system (16), then the oil sludge in the apparatus (2) is treated with an alternating magnetic field, and in the heater (3) the oil sludge is heated and treated with an integrated acoustic system (4). A flocculant is metered into the heated oil sludge stream by system (17). The heated oil sludge is cleaned in a self-cleaning coarse filter (5) equipped with an acoustic system (6).
Under the influence of temperature, demulsifier and acoustic systems, emulsions are separated, and under the influence of a flocculant, the process of coagulation of mechanical particles occurs.
Treated oil sludge enters a two-phase centrifuge (7), in which it is cleaned of mechanical particles under the influence of centrifugal forces.
The cleaned centrifuge centrate in the pressure mode enters and is cleaned in a self-cleaning fine filter (8) equipped with an acoustic system (9), and enters a three-phase self-unloading centrifugal separator (10). Under the influence of centrifugal forces, oil sludge is divided into two liquid phases: oil and water. Periodically, unloading of the residues of mechanical particles from the separator (10) is carried out.
Refined oil under excess pressure is discharged by a separator (10) into a container for receiving refined oil (not shown in the figure).
Sludge from a centrifuge (7) is discharged into a container (11), which also accepts: periodic discharge of dirty oil sludge from filters (5 and 9), periodic discharge of mechanical particles concentrate from a separator (10) and constant output of separated water from a separator (10) . The waste received by the separation device (12) is divided into three phases; oil, water and solids. Oil from the upper level of the tank (11) return device (15) is returned to the suction line of the pump (1). Water from an intermediate level overflows into the sewer. Part of the water discharged from the tank (11) by the process water outlet device during the discharge of the separator (10).
Condensate from the external system is fed to the tank section (11). From the lower level of the section, a part of the condensate is supplied by the clean water outlet device (14) as control water during the discharge of the separator (10).
The disadvantage of this installation is its poor performance.
A technical solution is known (RF Patent No. 2182563 for application No. 2000106103/12 with a priority of March 15, 2000; Published: May 20, 2002; IPC 7 С02F 11/00, С02F 1/40. "System for collecting, processing oil sludge and decontamination of soil ").
The well-known "System for the collection, processing of oil sludge and soil neutralization" contains a series-connected module for collecting and pumping sludge, a filter, a separator, and the output of the first emulsifier supply unit is connected to the input of the filter, and the output of the filter is connected to the input of the drive of large mechanical particles; the output of the separator by light fraction is connected to the inlet to the heater, the input of which is also connected to the output of the second demulsifier supply unit and the output of the water vapor supply unit; a two-phase centrifuge, one output of which is connected to the input of a three-phase centrifugal separator, one output of which is connected to the input of the tank for collecting purified oil; the heavy fraction separator output through the third sludge supply device is connected to the extractor input, to the other two inputs of which are connected a steam supply unit and a solvent supply unit, respectively; an enzyme processing device, the output of which is communicated with one of the inputs of the biological destruction device, and the other input of the latter is connected to the output of the first aeration system, the input of which is connected by the first pump to the output of the biological destruction device, while the output of the biological destruction device is also connected to the input of the cleaned output device sand; the outlet of the separator for water-sludge suspension using a pump for supplying water-sludge suspension is connected to the input of the cultivator, the second input of which is connected to the output of the second aeration system via a feedback circuit from its output using the second pump; one of the separator inputs through the separator receiver is connected to the water vapor supply unit, the heavy fraction output from the heater through the first speaker system is connected to the input of a two-phase centrifuge; two extractor outputs for water and suspension
connected to the respective inputs of the separator, and the third output of the extractor in the sand through the second speaker system using the fourth device for the supply of sediment communicated with the input of the processing enzymes; the water separator output through the first acoustic filter is connected to the input of the sludge collection and pumping unit using a water supply pump; the second output of the second aeration system through the fourth speaker system is connected to the third input of the cultivator, and its output through the second acoustic filter is connected to the second input of the module for collecting and pumping sludge; the second output of the three-phase centrifugal separator using the second sludge supply device and the third output of the three-phase centrifugal separator are connected to the respective inputs of the separator.
The disadvantage of this known technical solution is the complexity of the design and the difficulties associated with the operation of the "System for the collection, processing of oil sludge and decontamination of soils."
Of the known analogues, the closest in technical essence and the result achieved is the well-known technical solution (RF Patent No. 2261894 by application No. 200411195/04 with prior. 04/19/2004; Published: 10.10.2005, IPC 7 С10G 33/06; B01D 21/28. "Method for the preparation of oil sludge for processing and installation for its implementation") - taken as a PROTOTYPE.
The installation according to the prototype - “Installation for the preparation of initial oil sludge for processing” includes (Fig. 2): the receiving capacity of the initial sludge (1) with steam registers inside (not shown in the figure), a vibrating screen (2) with a drain (3) , an intermediate container for receiving oily liquid (4), a pump (5), a container for collecting separated impurities (6), while the container (1) is equipped with a mesh or mesh box with cells of at least 25 mm and has a lid (not shown in Fig. not shown ) The installation also contains a pump (8), a sand separator (hydrocyclone) (7) and an oil-containing liquid feed tank (9).
The operation of the installation is as follows. The initial liquid oil sludge from emergency oil spills or temporary storage places is fed to the grid of the receiving tank (1). Fragments of mechanical impurities no larger than 25 mm in size are retained on the grid. Filling the container (1) with the initial slurry is carried out to a level of not more than 10 cm from the upper edge, after which the container (1) is closed with lids. Oil sludge is heated for several hours using steam registers with saturated steam to a temperature of at least 70 ° C. To control the temperature of the heating of the sludge, a thermometer with a rod holder is used. The oil sludge heated to a pumped state is pumped (5) to a vibrating screen (2) with a mesh size of 0.16 mm. Sludge supply is regulated by a valve on the pressure pipe of the pump (5). On the vibrating screen (2), the separation of mechanical impurities larger than 0.15 mm occurs, which, as a result of linear vibrations, is discharged into the container (6). The oil-containing liquid (LFG), purified from large fractions of mechanical impurities, passing through the mesh of the vibrating screen (2), is sent through the drain (3) to an intermediate tank (4), from where the oil sludge prepared for processing by pump (10) are fed into the raw material tank of known plants or directly to the decanter.
After separation of large fractions, an oily liquid from the first intermediate tank (4) is pumped (8) to a sand separator (hydrocyclone) (7), where mechanical impurities larger than 0.05 mm are separated. The purified liquid enters the second intermediate tank (9), from where it is pumped (10) to the raw material tank of known plants or directly to the decanter. Particles of mechanical impurities separated by centrifugal forces from the sand separator (7) are discharged into the container (8).
The disadvantage of "Installation" of the prototype is the unsatisfactory degree of purification of petroleum products from impurities, including impurities of the solid part.
The objective of the proposed utility model is the creation of an industrial-technological complex for the processing of multicomponent oily waste products of complex composition with the extraction and utilization of oily fractions, the isolation of the solid phase in a form suitable for subsequent briquetting and / or tabletting.
The technical result that can be obtained by implementing the claimed technical solution is to reduce energy costs for the processing of oil waste and their disposal.
The problem is solved with the achievement of the above technical result of the proposed utility model - "Industrial technological complex for the processing and disposal of oily waste", including (Fig. 3) heated receiving-averaging tanks (1), strainers (not shown), pumps , pipelines with shut-off and control valves, heated and thermally insulated intermediate containers (2), containers for collecting the solid phase, prefabricated containers for oil products purified from foreign impurities. What is new in the proposed utility model is that intermediate containers (only one container is conventionally shown in Fig.) - (2) have connections to the assembly (3) for the preparation and dosage of chemicals for oil sludge treatment, and the output from intermediate containers (2) is through the pump system is sent to a high-speed three-phase centrifuge (4) connected to collectors of oil (5) and water (6) fractions and containers (7) to collect the solid phase extracted from oil sludge, containers (7) have screw connections with mixers-driers ( 9-1 and 9-2), in the course of which is connected by a screw conveyor (not shown in Fig.) to the feed hopper (10) of the thermal desorber (11), heated by flue gases and made in the form of an inclined rotary tube furnace (12) and placed in a fixed-mounted casing (13) of the thermal desorber ( 11) equipped with unloading
device (14), made in the form of a water-cooled pipe with an unloading screw conveyor (15) placed in it with a hollow water-cooled shaft, the outlet of the unloading device (14) is directed to containers-containers (16) of heat-treated materials sent to the briquetting system (17) , the exit chamber (18) of the thermal desorber (11) is connected to an irrigated scrubber (19) for cleaning exhaust gases from dust, low-boiling condensing hydrocarbons, the scrubber (19) is equipped with a drop-, mist eliminators (20) installed in the upper part of the scrubber, the exit with oil-dust ratios from the lower zone of the scrubber (19) through a circulation pump (21) is directed to a filter system (22-1 and 22-2) connected to a collecting tank (23) with condensed oil and through a water-cooled heat exchanger (25) with an oil-wetted system a scrubber, a collection tank also has a connection with tanks (capacity) (24) for storage and subsequent shipment to consumers of oil products (oils) purified from extraneous impurities, after the filters for cleaning oil from suspended particles (22-1 and 22-2), a collector is installed ( 26) solid phase trapped in the scrubber (19), the collector (26) has connections with mixer dryers (9-1 and 9-2), a container (28) with oil-contaminated earth is also connected to these dryers via a metering hopper (27), for output from the upper part of the scrubber (19) volatile hydrocarbons above the dust-drop eliminators (20), a fitting (29) is installed that has connections to the afterburner of combustion (30), equipped with a burner (31) and blowers (32-1 and 32-2) connected directly to the afterburner (30), and the burner (31), the exit of hot flue gases from the afterburning combustion chamber it is connected to the inlet (33) of the thermal desorber and to the mixer-driers (9-1 and 9-2); a fan (34) is installed to discharge the cooled flue gases from the thermal desorber.
Developed by the "Industrial technological complex for the processing and disposal of oily waste" works and is operated as follows.
The original oil sludge arriving for processing, neutralization and subsequent disposal is loaded into receiving heating tanks (1) equipped with mixing devices. Then heated oil-containing wastes from these containers are pumped through special coarse mesh filters using a pump system for further heating and chemical treatment into intermediate heating and heat-insulated containers (2) equipped with mixers. From the site (3) for the preparation and dosage of chemicals in the intermediate containers (2) serves and / or injects solutions of coagulants, demulsifiers and flocculants; Heated and treated with the above chemical reagents, oily waste is sent (pumped) to a high-speed three-phase centrifuge (4), which separates the oil, water and solid phases (fractions). The oil fraction is collected in the reservoir (5), the aqueous fraction is collected in the reservoir (6), and the solid phase - the precipitate is collected in containers (7). From these containers (7), the solid phase - precipitation by screw connections (8) is loaded into mixer dryers (9-1 and 9-2), from where precipitation is fed by a screw conveyor into the feed hopper (10) of the thermal desorber (11), from the feed hopper ( 10) a precipitate containing up to 15% of petroleum products is sent to an inclined rotary tube furnace (12), heated externally by flue gases and placed in a motionlessly installed case (13) of a thermal desorber (11). Heat-treated material - in the form of a powdered mass, is removed from the thermal desorber (11) through an unloading device (14) and with an unloading screw conveyor (15) placed in a water-cooled pipe, unloaded into collection containers (16) and then sent to the briquetting system (17). The vapor-, dust-gas mixture formed during the heat treatment-thermal desorption comes from the outlet chamber (18)
a thermal desorber to an oil-wetable scrubber (19), in which dust from the thermal desorber is collected and low-boiling hydrocarbons (oils) are condensed, which are fed to the filter system (22-1 and 22-2) with a circulation pump (21) to clean the condensed oil products from solid phase (dust). The dust-free oils are partially fed to a water-cooled heat exchanger (25) and then to a scrubber (19) for irrigation of a steam-, dust-gas mixture coming from a thermal desorber. A part of the condensed oil products (oils) from the collection tank (23) is pumped (or transferred by gravity) to the tank (tank) (24) for accumulation, storage and subsequent shipment to consumers as a commercial product and / or intermediate. Filters - the filter system (22-1 and 22-2) is discharged, the precipitate - the dust fraction of heat-treated oily waste extracted from oil is collected in collectors (26), from where it is sent for mixing with other solid oily waste in mixer dryers (9-1 and 9-2) fed from the container (28) and the metering hopper (27) oiled earth, all the combined solid oily waste in mixer dryers (9-1 and 9-2) are thoroughly mixed when heated by flue gases leaving the afterburner, and then loaded into a thermal desorber (11 )
The waste gases formed during the heat treatment of oil sludge in a thermal desorber (11) —volatile hydrocarbons are removed from the upper part of the scrubber (11) through a fitting (29) and sent to the so-called “afterburner” of combustion (30), equipped with burners (31), to ensure normal mode of combustion of hydrocarbons, blowers (32-1 and 32-2) are connected to the afterburner (30) and burner (31), providing the required air (oxygen) supply to the combustion chamber and directly in the burner, and hot flue gases from the afterburn the combustion chamber enter through the fitting (33) of the thermal desorber (11) and, at the same time, to the mixer-driers (9-1
and 9-2). Partially cooled flue gases are removed from the thermal desorber using a fan (34).
Thus, in accordance with the proposed technical solution, volatile hydrocarbons generated during the heat treatment of various solid oily waste products are disposed of directly in the general technological scheme. Due to this, the processes of heat treatment of oily waste occur in an autothermal mode: the amount of heat generated by the combustion of light hydrocarbons removed from the upper part of the scrubber (19) is quite sufficient for the thermal desorption process. A certain amount of (very small) fuel (diesel fuel, natural gas, etc.) is necessary only at the initial moment - i.e. at the moment of launching ("ignition") of an industrial technological complex into operation, after which, the "System" works "on its own", while additionally refined from impurities oil products are produced that are suitable for sale as commercial products and / or intermediates.

Claims (1)

  1. Industrial technological complex for the processing and disposal of oily waste, including heated receiving-averaging tanks, strainers, pumps, pipelines with shut-off and control valves, heated and heat-insulated intermediate tanks, containers for collecting solid phase, collection tanks for oil products cleaned of foreign impurities, characterized in that the intermediate tanks have connections with the unit for the preparation and dosage of chemicals for the treatment of oily waste s, and the output from the intermediate tanks through the pumping system is directed to a high-speed three-phase centrifuge connected to oil and water fraction collectors and containers for collecting the solid phase extracted from oil sludge, the containers have screw connections with mixer dryers, the outlet of which is connected by a screw conveyor to the feed hopper of the thermal desorber, heated by flue gases and made in the form of an inclined rotary tube furnace and placed in a fixed-mounted housing of the thermal desorber, is equipped with by a discharge device made in the form of a water-cooled pipe with an unloading screw conveyor placed in it with a hollow water-cooled shaft, the outlet of the discharge device is directed to containers-containers of heat-treated materials sent to the briquetting system, the exit chamber of the thermal desorber is connected to the irrigated scrubber for cleaning the exhaust gases from dust, low-boiling condensing hydrocarbons, the scrubber is equipped with a drop, mist eliminators installed in the upper part of the scrubber, the output of the suspension oil dust from the lower zone of the scrubber through the circulation pump is directed to a filter system connected to a collecting tank with condensed oil and through a water-cooled heat exchanger with an oil-spraying scrubber system, the collecting tank also has a connection to storage tanks and subsequent shipment to consumers of oil products cleared of foreign impurities, after filters for cleaning petroleum products from suspended particles a collector of the solid phase trapped in the scrubber is installed, the collector has connections to mix li-dryers, a container with oil-contaminated earth is also connected to these dryers through a dosing hopper for withdrawing volatile hydrocarbons from the top of the scrubber, a nozzle is installed above the droplet-mist eliminators, having connections to the afterburner of combustion, equipped with a burner and blowers connected directly to the afterburner and burner, the exit of hot flue gases from the afterburner of the combustion chamber is directed to the inlet of the thermal desorber and to the mixer-driers, for the discharge of cooled flue gases s thermal desorbers a fan.
    Figure 00000001
RU2007139480/22U 2007-10-24 2007-10-24 Industrial technological complex for the processing and disposal of oil-containing waste RU71730U1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2488743C2 (en) * 2010-06-10 2013-07-27 Владимир Петрович Шустов Garbage incinerator
RU2536906C1 (en) * 2013-07-26 2014-12-27 Общество с ограниченной ответственностью "РосЭкология" Methods for processing oil-containing wastes and device for its implementation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2488743C2 (en) * 2010-06-10 2013-07-27 Владимир Петрович Шустов Garbage incinerator
RU2536906C1 (en) * 2013-07-26 2014-12-27 Общество с ограниченной ответственностью "РосЭкология" Methods for processing oil-containing wastes and device for its implementation

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