Device for automatic control of process of soil cleaning from oil

FIELD: ecology.

SUBSTANCE: plant comprises a base vehicle 1 with a platform and equipment installed on it. Equipment comprises a reservoir 2 charged with water, a hydraulic manipulator with an ejector pump 4, a facility of mechanical removal of contaminants 3 and a facility of cleaned material discharge 5 in the form of a scraper conveyor. The reservoir 2 is made with windows in the upper part and side compartments for collection of contaminants. In the bottom of the reservoir 2 there are facilities of mechanical cleaning 3 in the form of acoustic radiators, which are connected to a power generator. The generator is installed on the base vehicle 1. The scraper conveyor is installed in the cavity of the reservoir 2, having a window for discharge. On the platform of the base vehicle 1 there is an expansion tank 7 with water and a transfer pump 6. The base vehicle 1 is equipped with a subsystem of automatic control, which controls level of reservoir 2 filling with water. The transfer pump 6 connects the expansion tank 7 with the reservoir 2. The automatic control subsystem comprises water level sensors 8, an input device 9 connected to sensors, an output device 10 and a control unit 11. Level sensors 8 are installed in the reservoir 2. The input device 9 converts an analogue signal into a digital one. The control unit 11 is connected to the input device 9 and the output device 10. The output device 10 converts a digital signal into an analogue one and is connected to the transfer pump 6.

EFFECT: increased efficiency of the process of soil cleaning from oil.

1 dwg

 

The invention relates to the protection of the environment, namely for the remediation of oil polluted soils, decontamination of soil, soil, sludge and automatic management of the process of cleaning contaminated soil.

Known installation for cleaning of oil and oil sludge containing two receptacles for contaminated and the adsorption material is a cellulose fiber, loading a hopper with a mixing device connected with a screw press for pressing a mixture of oil sludge with the adsorption material, screw press equipped with a hopper for collecting wrung liquid fraction and is connected to melitele remaining solids, after which it is the classifier with the hopper for removal of heavy fraction from the solid fraction and a separator with a tank for solids and cellulose fibers (patent RF №2426833 C1, priority date 08.02.2010, date of publication, 20.08.2011, authors: Telecom A.A., Telecom A.N., RU).

A disadvantage of the known installation is low efficiency due to the absence of a system of automatic control of the cleaning process from crude oil, petroleum and petroleum sludge because the proportional mixing of oil sludge and the adsorption material is carried out depending on the faction and the extent of contamination of the material oil, the Veda is camping visually by the operator.

As a prototype made a device for cleaning soils from oil spills containing the base car with the installed equipment, which consists of the boot capacity with a constant volume of water and the download tool in her oil sludge, means the mechanical removal of oil pollution and the means of discharging the purified material, while the boot capacity made in the form of tanks with Windows at the top and two side compartments for collecting the contaminated liquid through the Windows, the download tool is equipped with a hydraulic manipulator with ejector pump, means the mechanical removal of oil pollution is made in the form of acoustic emitters mounted in the bottom of the tank and connected to the generator electric current that is installed on the base car, means for discharging the purified material was in the form of a scraper conveyor placed in the cavity of the tank, with the window for unloading (RF patent No. 78494 U1, priority date 01.07.2008, publication date 27.11.2008, the authors Prikhod'ko V.M., V.A. Zorin and others, RU, prototype)

The disadvantage of the prototype is its low efficiency, due to the fact that the device is not adapted to the use of the system of automatic control of the cleaning process, for control and regulation of the water level in the tank depending on faction and the extent of soil contamination, which leads to a long process of purification of soil, water overuse, poor performance and poor workflow for cleaning soil from oil and water over-consumption leads to inability to use the installation in remote reservoirs.

The objective of the invention is to increase the efficiency of the process of cleaning soils from oil due to the use of the installation for automatic control of the cleaning process to conserve, control and regulation of the water level in the boot capacity depending on faction and the extent of soil contamination, as well as reducing the cleaning process of the soil over time and increasing productivity.

To solve the tasks set for automatic control of the process of cleaning soils from oil, including the base car with the installed equipment containing downloadable water tank with Windows in the upper part and side compartments for collecting dirt, hydraulic crane with ejector pump for download in the capacity of the contaminated material, the mechanical means of removing dirt in the form of acoustic emitters mounted in the bottom of the tank and connected to a generator of electric current that is installed on the base car, and means for discharging the purified material in the form of a scraper conveyor, razmeshennom is in the cavity of the container, having the window for unloading, according to the invention it further comprises a surge tank with water, transfer pump, connecting the surge tank with capacity, and automatic control subsystem controlling the filling level of the tank water containing level sensors installed in the tank associated with the Sensorless input device for converting the analog signal into a digital control unit associated with the input device and output device for converting a digital signal into an analog signal associated with the control unit and to the pumping pump.

The drawing shows a functional diagram of the setup for automatic control of the process of cleaning soils from oil.

Installation for automatic control of the process of cleaning soils from oil contains basic car 1 with the platform on which you installed capacity 2 with Windows in the upper part and side compartments for collecting dirt, loaded with water and contaminated petroleum soil. In the bottom of the vessel 2 tools installed mechanical treatment 3 in the form of acoustic emitters connected to a generator of electric current (not shown conventionally). To download the contaminated soil in the tank 2 to the base vehicle has a hydraulic arm mounted on the end of the ejector pump 4. For in the load cleared ground tank 2 provided with a scraper conveyor 5 and the window. On the platform of the base car is equipped with transfer pump 6 and the surge tank 7, connected to the tank 2 through the above-mentioned pump 6. The base car is equipped with automatic control subsystem that controls the fill level of the vessel 2 with water. Automatic control subsystem allocated to the scheme given above circuit and contains a water level sensors 8, installed in the vessel 2, associated with the sensors of the input device 9 for converting the analog signal into a digital output device 10 for converting the digital signal into an analog signal and associated with the devices 9 and 10, the control unit 11, the output device 10 is connected to the pumping pump 6.

Installation for automatic control of the process of cleaning soils from oil works as follows. The operator pushes the control unit 11 of the necessary workflow parameters: the degree of pollution, the fraction of the soil, after which the signal on the output device 10, in which the signal is converted from digital to analog, and included transfer pump 6, which, in turn, supplies water from the surge tank 7 into the container 2, thereby filling it in the required amount. On termination of the filling of the container 2 by the water signal of the water level sensors 8, which sends a signal to the input device 9, Preobrazheniye from analog to digital, next, the control unit 11. The control unit, in turn, through the output device 10 sends a signal for termination of water flow into the tank 2 transfer pump 6. Next, using the ejector pump 4 contaminated material is fed into the tank 2, where under the action of means of mechanical treatment 3, in the form of acoustic emitters, the contaminated material is subjected to purification from organic compounds. Due to the difference of densities of the pollutant of surface water through the openings in the upper part of the vessel is poured into the side compartments. Then using a scraper conveyor 5 purified material is expelled. Together with the purified material comes out and some of the water, resulting in water volume in the tank decreases. About the fall of the liquid level below the desired signal level sensors 8, which sends a signal to the control unit 11 via the input device 9. The control unit 11 via the output device 10 sends a signal to the transfer pump 6, which fills the tank with water to the required volume of the surge tank 7. Thus the cycle repeats.

The advantage of the proposed technical solution is the implementation of automatic control and regulation of the level of the water tank depending on faction and the extent of soil contamination with oil in the reduction process is the cleaning of the soil over time, to increase productivity and workflow efficiency for cleaning soil from oil and water savings, which contributes to work in remote reservoirs.

Installation for automatic control of the process of cleaning soils from oil, including the base car with the installed equipment containing downloadable water tank with Windows in the upper part and side compartments for collecting dirt, hydraulic crane with ejector pump for download in the capacity of the contaminated material, the mechanical means of removing dirt in the form of acoustic emitters mounted in the bottom of the tank and connected to a generator of electric current that is installed on the base car, and means for discharging the purified material in the form of a scraper conveyor placed in the cavity of the container having a window for unloading, characterized in that it further comprises a surge tank water transfer pump, connecting the surge tank with capacity, and automatic control subsystem controlling the filling level of the tank water containing level sensors installed in the tank associated with the Sensorless input device for converting the analog signal into a digital control unit associated with the input device and output device to be the education digital signal into analog signal, associated with the control unit and to the pumping pump.



 

Same patents:

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FIELD: ecology.

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28 cl, 6 dwg

FIELD: oil and gas industry.

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3 cl, 1 dwg

FIELD: process engineering.

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6 cl, 4 dwg

FIELD: process engineering.

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4 dwg

FIELD: process engineering.

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EFFECT: higher efficiency.

4 dwg

FIELD: chemistry.

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FIELD: oil and gas industry.

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EFFECT: effective elimination of hazardous emissions from the bottom of water bodies.

3 cl

FIELD: oil and gas industry.

SUBSTANCE: device includes a vortex chamber, swirlers, floats with a power frame installed on them, a collected oil accumulating tank, a pipeline and a pump. Vortex chamber consists of a cover plate, a cylindrical housing and a bottom. There are holes in the cover plate of the vortex chamber, and a motor is installed on the outer side. The motor shaft is located in the cavity of the vortex chamber and forms an annular gap with a hole in the chamber cover plate. A swirler is put on the motor shaft in the form of a bladed impeller and an intake is installed through an adapter coupling. The intake consists of a tubular housing, inside which a screw is installed. The intake housing is taken out through a bearing assembly beyond the vortex chamber. The bearing assembly is fixed at the bottom of the shell installed at the bottom of the vortex chamber. In the part of the intake, which is located in the cavity of the vortex chamber, there are drain holes of collected oil products from the intake cavity to the chamber cavity. At that, a reflecting skirt is installed below the holes. The second swirler in the form of a bladed impeller is put on the intake housing beyond the vortex chamber. The second swirler is located in the cavity of shaped casing. The casing bottom has an annular gap with external surface of the intake housing. Free end of the intake is located below the plane formed with the casing end. Oil products are drained from vortex chamber to the accumulating tank through the holes made at the chamber bottom.

EFFECT: increasing collection efficiency of spilled oil or oil products from water.

2 dwg

FIELD: ecology.

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EFFECT: high degree of ballast siftings purification is achieved with simultaneous efficient phase separation, reduction of dangerous wastes formation and energy consumption for the process.

2 cl, 2 dwg

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