CN110201984B - Microwave deoiling recovery device for oil-containing article and use method thereof - Google Patents
Microwave deoiling recovery device for oil-containing article and use method thereof Download PDFInfo
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- CN110201984B CN110201984B CN201910547730.6A CN201910547730A CN110201984B CN 110201984 B CN110201984 B CN 110201984B CN 201910547730 A CN201910547730 A CN 201910547730A CN 110201984 B CN110201984 B CN 110201984B
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- 238000011084 recovery Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 181
- 238000010438 heat treatment Methods 0.000 claims description 154
- 238000005507 spraying Methods 0.000 claims description 75
- 239000000428 dust Substances 0.000 claims description 74
- 239000007789 gas Substances 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 23
- 239000007800 oxidant agent Substances 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 19
- 238000005485 electric heating Methods 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 11
- 238000005238 degreasing Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000002076 thermal analysis method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of oil field environmental protection, in particular to a microwave deoiling recovery device for oil-containing articles and a use method thereof.
Description
Technical Field
The invention relates to the technical field of oilfield environment protection, in particular to a microwave deoiling recovery device for an oil-containing article and a use method thereof.
Background
During the oil exploration and development process, particularly when handling operations associated with oil-based drilling fluids, a large amount of oil-containing cuttings, oil-containing sludge and oil-contaminated articles are produced that pollute the environment: such as gloves, clothes, felts, cotton yarns, parts and the like, some oil-containing articles can be directly treated by landfill or incineration, secondary pollution can be possibly caused, most of the articles such as gloves, clothes and felts are just used and are completely polluted by oil stains, and the oil stains are not scrapped, wherein some waste products can be completely reused after the oil stains are removed, and the existing microwave treatment device only aims at oil-containing sludge and oil-containing drilling cuttings, is not explicitly used for oil removal treatment of other oil-stained articles, and has no corresponding technical capability, such as a patent ' microwave treatment oil-containing drilling cuttings device (authorized bulletin number: CN 206266402U) ', an oil-containing solid waste microwave thermal desorption recycling treatment system (authorized bulletin number: CN 207271789U) ', and ' an oil-based waste electromagnetic microwave treatment system and method (authorized bulletin number: CN 102826729B) '. Therefore, in order to reduce secondary damage of the oil-containing articles to the environment, improve the secondary utilization rate of the oil-containing articles, increase the applicability of the microwave thermal analysis treatment device and realize oil recovery, a microwave deoiling recovery device for the oil-containing articles and a use method thereof are designed.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the microwave deoiling recovery device for the oil-containing article, improves the secondary utilization rate of the oil-containing article, increases the applicability of the microwave thermal analysis treatment device, and realizes the recovery of the oil product, in particular to the microwave deoiling recovery device for the oil-containing article and a use method thereof.
The technical problems solved by the invention can be realized by adopting the following technical scheme:
a microwave deoiling recovery device for oily objects comprises
The microwave processor is internally provided with a heating bin and a microwave generator, the top of the heating bin is provided with a microwave inlet, and a microwave outlet of the microwave generator is communicated with the microwave inlet at the top of the heating bin;
the vacuum pump is communicated with the heating bin through a pipeline, and the pipeline is connected with a first valve;
the water spraying sprayer is communicated with the heating bin through a water spraying pipeline, the water spraying pipeline is connected with a one-way valve, a water storage chamber and a water spraying nozzle are arranged in the water spraying sprayer, and the water spraying nozzle is communicated with the heating bin through the water spraying pipeline;
the air inlet of the dust remover is communicated with the heating bin through a dust removing pipeline;
the dry ash collecting box is communicated with the bottom of the dust remover through a metal hose, the bottom of the metal hose connected with the second valve is provided with a gravity sensor, and the bottom of the dry ash collecting box is contacted with the ground through the gravity sensor;
the air inlet of the condenser is communicated with the air outlet of the dust remover through a condensing pipeline,
the oil-water separator is communicated with the bottom of the condenser through a pipeline, a water tank and an oil tank are arranged in the oil-water separator, the lower part of the water tank is connected with an outer water tank conveying pipeline, the lower part of the oil tank is connected with an outer oil tank conveying pipeline, and the outer water tank conveying pipeline is communicated with a water storage chamber in the water spraying sprayer through a water circulation pipeline.
The thermal oxidizer is communicated with a condenser air outlet through a tail gas pipeline, and the condenser air outlet is also sequentially connected with a third valve and a sealing fan through the tail gas pipeline.
The water tank is characterized in that a fourth valve is connected to the oil tank output pipeline, a fifth valve, a filter, a centrifugal pump and a seventh valve are sequentially connected to the water tank output pipeline, a water circulation pipeline is connected to the water tank output pipeline between the centrifugal pump and the seventh valve, and a sixth valve is connected to the water circulation pipeline.
The microwave processor at least comprises an outer shell and a convenient door which can be opened and closed with the outer shell, wherein the convenient door and the heating bin form a closed cavity, the heating bin comprises an inner shell, the inner shell of the heating bin is made of metal materials, a microwave generator is arranged in the outer shell of the inner shell of the heating bin, and an electric heating belt and a heat preservation and insulation layer are sequentially arranged outside the inner shell of the heating bin from inside to outside.
The middle part in the heating storehouse relative both sides wall be provided with corresponding circular recess, can dismantle in the circular recess on both sides wall and connect the fretwork drum, and wherein one side wall circular recess still is provided with the first motor that is used for driving the fretwork drum.
The heating bin is characterized in that a storage tray is arranged at the center of the bottom of the heating bin, a groove is formed in the inner wall of the heating bin at the bottom of the storage tray, a second motor for driving the storage tray to rotate is arranged in the groove, a thrust ball bearing concentric with the second motor is arranged in the groove, the storage tray is placed on the thrust ball bearing, the outer edge of the storage tray is inclined outwards and is not contacted with the inner wall of the heating bin, and the storage tray is made of silica glass or alumina ceramics.
The microwave inlet at the top of the heating bin is fixedly connected with a light-transmitting sheet, and the light-transmitting sheet is made of silica glass or alumina ceramics.
The heating bin is provided with a first pressure sensor and a first temperature sensor, a second temperature sensor and a second pressure sensor are arranged on the dust removal pipeline, a third temperature sensor and a third pressure sensor are arranged on the condensation pipeline, and a fourth temperature sensor, a fourth pressure sensor and an oxygen content sensor are arranged on the tail gas pipeline.
The dust removal pipeline, the dust remover, the condensing pipeline, the second valve and the metal hose are all provided with an electromagnetic heating coil and an insulating layer from inside to outside.
The application method of the microwave deoiling and recycling device for the oil-containing articles comprises the following steps of:
step one: preparation before starting up
Firstly closing all valves, opening a convenient door of a microwave processor, putting oil-containing articles into a heating bin, then selecting a hollow cylinder or directly putting the hollow cylinder into a containing disc according to different oil-containing articles, finally closing the convenient door to seal the heating bin, opening a first valve and a second valve, and closing a third valve, a fourth valve, a fifth valve, a sixth valve and a seventh valve;
step two: boot preprocessing
Opening a water spraying sprayer and a one-way valve, determining a water spraying mode according to different oil-containing articles in the first step, directly spraying water if the oil-containing articles in the heating bin are directly placed on the containing disc in the first step, starting a first motor if the oil-containing articles in the heating bin are on the hollow cylinder in the first step, starting to rotate the hollow cylinder, rotating the hollow cylinder at one side, spraying water while the water spraying sprayer, stopping spraying water when the specific gravity of water and the oil-containing articles reaches 0.05-0.6, closing the water spraying sprayer and the one-way valve, opening a vacuum pump to suck air in the heating bin, a dust removing pipeline, a dust remover, a condensing pipeline, a condenser, a dry ash collecting box and an oil-water separator cavity, observing an oxygen content sensor, and sequentially closing the first valve and the vacuum pump after the oxygen content is lower than 5%;
step three: heat treatment
On the basis of the second step, starting electromagnetic heating of an electric heating belt and an electromagnetic induction coil, enabling the temperature of an inner shell of a heating bin, a dedusting pipeline, a dust remover, a condensing pipeline, a second valve and a metal hose to be more than or equal to 280 ℃ and less than or equal to 320 ℃, then starting a microwave generator to heat oil-containing articles in the heating bin, when the pressure of a fourth pressure sensor 19 reaches 1 KPa-5 KPa, starting a thermal oxidizer, and starting a third valve, when the temperature of a first temperature sensor is more than or equal to 250 ℃, opening a water spray sprayer and a one-way valve to control water quantity to spray water to oil-containing articles from small to large or intermittently, selecting whether to start a hollow cylinder to rotate according to the position of the oil-containing articles, enabling the temperature of the first temperature sensor to be kept between 250 ℃ and 320 ℃, simultaneously starting a sealing fan to increase the flow rate of the oil-water vapor, sequentially passing through the dust remover for dedusting, condensing the condenser, oxidizing the thermal oxidizer, enabling dust removed by the dust of the dust remover to finally fall into a dry ash collecting box, enabling water condensed by the condenser to pass through a water separator, and then passing through a water separator to enter a water pump for a fifth step, and a water pump for water circulation pump to be controlled to be in a water circulation condition, and finally achieving the water spray treatment condition;
step four: shutdown recovery
On the basis of the third step, firstly increasing the spraying water quantity of the water spraying sprayer, evaporating a large amount of water, increasing the gas flow rate, purging a pipeline, enabling dust to fall into the dust remover, controlling the temperature of the first temperature sensor to be 120-130 ℃, then closing the microwave generator, the water spraying sprayer, the electric heating belt and electromagnetic heating, closing the sealing fan, the thermal oxidizer, the first motor, the second valve and the third valve after 5-10 minutes, waiting for the microwave processor, the electric heating belt, the electromagnetic heating coil, the microwave generator, the heating bin and the containing disc to naturally cool, taking out the treated oil-containing articles, opening the fourth valve oil for recycling according to the requirement, or opening the fifth valve and the seventh valve, starting the centrifugal pump, discharging unrepeatable waste water, and finally closing all the valves and the centrifugal pump, even if the whole device is shut down, and the oil-containing article microwave deoiling recycling is finished.
The first step is that the oil-containing articles are divided into granular oil-containing articles and soft oil-containing articles such as gloves, clothes and cotton yarns, if the oil-containing articles are granular, the hollow cylinder is taken out and directly put into the containing tray, and if the oil-containing articles are soft oil-containing articles such as gloves, clothes and cotton yarns, the hollow cylinder is put into the hollow cylinder.
The beneficial effects of the invention are as follows:
compared with the prior art, the invention is characterized in that:
1. according to the invention, the components such as the microwave processor, the vacuum pump, the water spraying sprayer, the dust remover, the dry ash collecting box, the condenser, the oil-water layering device and the thermal oxidizer are effectively arranged, and the oil removal process of the oil-containing article is real-time visual, controllable in operation, clean in oil removal and reliable in performance through four steps of preparation before starting, starting pretreatment, heating treatment and shutdown recovery. The invention adopts the modes of microwave heating, front vacuum, water spraying circulation and hollow cylinder rotation, does not need external nitrogen purging, can realize the more convenient, low-cost and efficient deoiling treatment effect, saves the consumable cost, can realize automatic control in related operation, saves the labor cost, improves the operation efficiency, is suitable for various oily articles such as oily drilling cuttings, oily sludge, oily gloves, clothes, felts, cotton yarns and the like, and can be manufactured into a miniaturized device with wide application range.
2. The second motor is used for driving the containing disc to rotate, the rotation axis direction of the second motor is vertical, the second motor is fixed in a groove at the center of the bottom of the inner shell of the heating bin, the containing disc is placed on the thrust ball bearing, the lower end of the thrust ball bearing is fixed in the groove at the center of the bottom of the inner shell of the heating bin, the outer edge of the containing disc is outwards inclined and is not contacted with the inner wall of the heating bin, the outer edge of the containing disc is outwards inclined, the outer edge of the containing disc is higher in upwarp amplitude, the containing disc is made of silica glass or alumina ceramic, and the silica glass or alumina ceramic has the characteristic of high temperature resistance. The hollow cylinder and the containing disc can be respectively placed and humidified according to specific types of oil-containing articles, granular oil-containing articles such as oil-containing drilling cuttings, oil-containing sludge and the like can be directly placed into the containing disc without the hollow cylinder and can be directly removed, and soft oil-containing articles such as oil-containing gloves, clothes, cotton yarns and felts are placed into the hollow cylinder better, and in the humidifying and heating processes, the hollow cylinder can be driven to rotate by the first motor, so that better humidifying and heating effects are achieved.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1-a vacuum pump; 2-a first valve; 3-a one-way valve; 4-spraying water sprayer; 5-a water storage chamber; 6-a first pressure sensor; 7-a first temperature sensor; 8-a second temperature sensor; 9-a dust removal pipeline; 10-a second pressure sensor; 11-an electromagnetic heating coil; 12-a condensing line; 13-a dust remover; 14-a second valve; 15-a metal hose; 16-a third temperature sensor; 17-a third pressure sensor; 18-a condenser; 19-a fourth pressure sensor; 20-a third valve; 21-sealing the fan; 22-tail gas line; a 23-thermal oxidizer; 24-water circulation line; 25-fourth temperature sensor; 26-oxygen content sensor; 27-a microwave processor; 28-a microwave generator; 29-a first motor; 30-a heat preservation and insulation layer; 31-a hollowed cylinder; 32-an electric heating belt; 33-light transmitting sheet; 34-thrust ball bearings; 35-a second motor; 36-heating the bin; 37-nozzles; 38, a tray; 39-a gravity sensor; 40-a dry ash collection box; 41-an oil-water separator; 42-fourth valve; 43-fifth valve; 44-a filter; 45-centrifugal pump; 46-sixth valve; 47-seventh valve.
Detailed Description
Example 1:
referring to FIG. 1, a schematic structure of an embodiment 1 of the present invention is shown, a microwave oil removal recovery device for oil-containing articles, comprising
The microwave processor 27 is internally provided with a heating bin 36 and a microwave generator 28, the top of the heating bin 36 is provided with a microwave inlet, and the microwave outlet of the microwave generator 28 is communicated with the microwave inlet at the top of the heating bin 36;
the vacuum pump 1 is communicated with the heating bin 36 through a pipeline, and the pipeline is connected with the first valve 2;
the water spraying sprayer 4 is communicated with the heating bin 36 through a water spraying pipeline, the water spraying pipeline is connected with the one-way valve 3, the water spraying sprayer 4 is internally provided with a water storage chamber 5 and a water spraying nozzle, and the water spraying nozzle is communicated with the heating bin 36 through the water spraying pipeline;
the dust remover 13, the air inlet of the dust remover 13 is communicated with the heating bin 36 through the dust removing pipeline 9;
the dry ash collecting box 40 is communicated with the bottom of the dust remover 13 through a metal hose 15, the metal hose 15 is connected with a second valve 14, the bottom of the dry ash collecting box 40 is provided with a gravity sensor 39, and the bottom of the dry ash collecting box 40 is contacted with the ground through the gravity sensor 39;
a condenser 18, wherein the air inlet of the condenser 18 is communicated with the air outlet of the dust remover 13 through a condensation pipeline 12,
the water-oil separator 41, the water-oil separator 41 is communicated with the bottom of the condenser 18 through a pipeline, a water tank and an oil tank are arranged in the water-oil separator 41, the lower part of the water tank is connected with an outer water tank pipeline, the lower part of the oil tank is connected with an outer oil tank pipeline, and the outer water tank pipeline is also communicated with the water storage chamber 5 in the water spraying sprayer 4 through a water circulation pipeline 24.
The thermal oxidizer 23, thermal oxidizer 23 is through tail gas pipeline 22 and condenser 18 gas outlet intercommunication, the condenser 18 gas outlet is through tail gas pipeline 22 still connected gradually third valve 20 and sealed fan 21.
When in actual use, the method comprises the following steps: the microwave processor 27 is used for microwave degreasing of oil-containing articles, particularly after the microwave outlet of the microwave generator 28 is communicated with the microwave inlet at the top of the heating bin 36, the microwave of the microwave generator 28 is projected from the microwave inlet at the top of the heating bin 36 to the interior of the heating bin 36 for microwave treatment of the oil-containing articles, so that the oil-containing articles are heated, the oil water is evaporated, the vacuum pump 1 is used for sucking air in the heating bin 36, the dust removing pipeline 9, the dust remover 13, the condensing pipeline 12, the condenser 18 and the dry ash collecting box 40, so that the oxygen content in the heating bin 36, the dust removing pipeline 9, the dust remover 13, the condensing pipeline 12, the condenser 18 and the dry ash collecting box 40 is reduced, the water spray sprayer 4 is used for spraying water to the oil-containing articles in the heating bin 36, the dust remover 13 is used for dust removal in the degreasing recovery process, the dry ash collecting box 40 is used for collecting dust removed in the dust remover 13, the condenser 18 is used for cooling oil-containing vapor in the oil removal recovery process, the oil-water layering device 41 is used for collecting and separating oil-containing liquid after the oil-water vapor cooled in the condenser 18 is discharged and collected through an oil tank output pipeline, waste water which cannot be reused is treated through a water tank output pipeline and enters the water storage chamber 5 in the water spraying sprayer 4 through the water circulation pipeline 24, the thermal oxidizer 23 is used for oxidizing gas at the gas outlet of the condenser 18, the discharged gas is ensured to be harmless, the gas outlet of the condenser 18 is further connected with the third valve 20 and the sealing fan 21 in sequence through the tail gas pipeline 22, the third valve 20 is used for controlling the opening and closing of the tail gas pipeline 22, and the sealing fan 21 is used for increasing the flow rate of the oil-water vapor.
The invention adopts the modes of microwave heating, front vacuum and water spraying circulation, does not need external nitrogen purging, can realize the treatment effects of more convenient, low cost and efficient degreasing, saves consumable cost, realizes automatic control on related operations, saves labor cost, improves the working efficiency and has wide application range by effectively arranging the components such as the microwave processor 28, the vacuum pump 1, the water spraying sprayer 4, the dust remover 13, the dry ash collecting box 40, the condenser 18, the oil-water separator 41, the thermal oxidizer 23 and the like, so that the degreasing process of the oil-containing article is visible in real time, the operation is controllable, the degreasing is clean and the performance is reliable.
Example 2:
compared with embodiment 1, this embodiment is different in that: the fourth valve 42 is connected to the tank outlet pipeline, the fifth valve 43, the filter 44, the centrifugal pump 45 and the seventh valve 47 are sequentially connected to the tank outlet pipeline, the water circulation pipeline 24 is connected to the tank outlet pipeline between the centrifugal pump 45 and the seventh valve 47, and the sixth valve 46 is connected to the water circulation pipeline 24.
When in actual use, the method comprises the following steps: the fourth valve 42 is used for controlling the opening and closing of the oil tank output pipeline, the fifth valve 43 is used for controlling the opening and closing of the water tank output pipeline, the filter 44 is used for filtering the wastewater from the water tank output pipeline, the centrifugal pump 45 is used for pumping the filtered water into the water circulation pipeline 24 and then into the water storage chamber 5 in the water spraying sprayer 4, and the sixth valve 46 is used for controlling the opening and closing of the water circulation pipeline 24.
Example 3:
compared with embodiment 1, this embodiment is different in that: the microwave processor 27 at least comprises an outer shell and a convenient door which can be opened and closed with the outer shell, the convenient door and the heating bin 36 form a closed cavity, the heating bin 36 comprises an inner shell, the inner shell of the heating bin 36 is made of metal, the microwave generator 28 is arranged in the outer shell outside the inner shell of the heating bin 36, and the electric heating belt 32 and the heat preservation and insulation layer 30 are sequentially arranged outside the inner shell of the heating bin 36 from inside to outside.
Preferably, the two opposite side walls of the middle part in the heating chamber 36 are provided with corresponding circular grooves, the circular grooves on the two side walls are detachably connected with the hollow cylinder 31, and the circular groove on one side wall is further provided with a first motor 29 for driving the hollow cylinder 31.
When in actual use, the method comprises the following steps: the convenient door and the heating bin 36 form a closed cavity, the convenient door has the functions of sealing, perspective and reflecting microwaves, the inner shell of the heating bin 36 is made of metal, the service life of the whole heating bin 36 is prolonged, the microwave generator 28 is arranged in the outer shell of the inner shell of the heating bin 36, the electric heating belt 32 and the heat insulation layer 30 are sequentially arranged from inside to outside of the inner shell of the heating bin 36, the electric heating belt 32 is used for heating the inner shell of the heating bin 36, the temperature reduction speed inside the heating bin 36 is reduced, the heat insulation layer 30 is used for insulating the inner shell of the heating bin 36, and the temperature reduction speed inside the heating bin 36 is further reduced; the corresponding circular grooves are formed in the two opposite side walls of the middle part in the heating bin 36, the inner shell of the heating bin 36 is not penetrated in the circular grooves, the tightness of the whole inner shell is guaranteed, the hollow cylinder 31 is detachably connected in the circular grooves and used for placing soft oily objects such as gloves, clothes and cotton yarns, the oily objects can be turned over, water is sprayed on the oily objects uniformly, the oily objects are heated uniformly, the hollow cylinder 31 can be taken out freely according to the type of the oily objects, and the first motor 29 is used for driving the hollow cylinder 31 to rotate.
Example 4:
compared with embodiment 1 or embodiment 3, the present embodiment is different in that: the central position of the bottom of the heating bin 36 is provided with a containing disc 38, the inner wall of the heating bin 36 at the bottom of the containing disc 38 is provided with a groove, a second motor 35 for driving the containing disc 38 to rotate is arranged in the groove, a thrust ball bearing 34 concentric with the second motor 35 is arranged in the groove, the containing disc 38 is placed on the thrust ball bearing 34, the outer edge of the containing disc 38 is outwards inclined and is not contacted with the inner wall of the heating bin 36, and the containing disc 38 is made of silica glass or alumina ceramics.
When in actual use, the method comprises the following steps: the containing disc 38 is used for containing granular oil-containing articles, the second motor 35 is used for driving the containing disc 38 to rotate, the rotation axis direction of the second motor 35 is vertical, the second motor 35 is fixed in a groove at the center of the bottom of the inner shell of the heating bin 36, the containing disc 38 is placed on the thrust ball bearing 34, the lower end of the thrust ball bearing 34 is fixed in the groove at the center of the bottom of the inner shell of the heating bin 36, the outer edge of the containing disc 38 is outwards inclined and is not contacted with the inner wall of the heating bin 36, the outer edge of the containing disc 38 is outwards inclined, the outer edge of the containing disc 38 is higher in upwarping amplitude, the material adopted by the containing disc 38 is silica glass or alumina ceramic, and the silica glass or alumina ceramic has the characteristic of high temperature resistance. In embodiment 3 and this embodiment, the hollow cylinder 31 and the containing disc 38 can be respectively placed and humidified according to the specific types of the oil-containing articles, for example, the granular oil-containing articles such as oil-containing drill cuttings and oil-containing sludge can be directly placed into the containing disc 38 without the hollow cylinder 31, and the hollow cylinder 31 is better placed into soft oil-containing articles such as oil-containing gloves, clothes, cotton yarns and felts, and the first motor 29 can drive the hollow cylinder 31 to rotate in the humidifying and heating process, so as to achieve better humidifying and heating effects.
Example 5:
compared with embodiment 1, this embodiment is different in that: the microwave inlet at the top of the heating bin 36 is also fixedly connected with a light-transmitting sheet 33, and the light-transmitting sheet 33 is made of silica glass or alumina ceramic.
When in actual use, the method comprises the following steps: the microwave entrance at the top of the heating bin 36 is fixedly connected with a light-transmitting sheet 33 for ensuring the tightness of the whole heating bin 36, meanwhile, microwaves of the microwave generator 28 can directly penetrate through the light-transmitting sheet 33 to enter the heating bin 36, the light-transmitting sheet 33 is made of silica glass or alumina ceramic, silica glass is selected, and the glass has high temperature resistance and strong penetrability.
Example 6:
compared with embodiment 1, this embodiment is different in that: the heating bin 36 is provided with a first pressure sensor 6 and a first temperature sensor 7, the dust removal pipeline 9 is provided with a second temperature sensor 8 and a second pressure sensor 10, the condensation pipeline 12 is provided with a third temperature sensor 16 and a third pressure sensor 17, and the tail gas pipeline 22 is provided with a fourth temperature sensor 25, a fourth pressure sensor 19 and an oxygen content sensor 26.
When in actual use, the method comprises the following steps: the first pressure sensor 6 and the first temperature sensor 7 are used for detecting the pressure and the temperature of the monitoring heating bin 36, the second temperature sensor 8 and the second pressure sensor 10 are used for detecting the pressure and the temperature in the monitoring dust removal pipeline 9, the third temperature sensor 16 and the third pressure sensor 17 are used for detecting the pressure and the temperature in the monitoring condensation pipeline 12, and the fourth temperature sensor 25, the fourth pressure sensor 19 and the oxygen content sensor 26 are used for detecting the temperature, the pressure and the oxygen content in the monitoring tail gas pipeline 22.
Example 7:
compared with embodiment 1, this embodiment is different in that: the external parts of the dust removing pipeline 9, the dust remover 13, the condensing pipeline 12, the second valve 14 and the metal hose 15 are respectively provided with an electromagnetic heating coil 11 and an insulating layer from inside to outside.
When in actual use, the method comprises the following steps: the electromagnetic heating coil 11 is used for heating the dedusting pipeline 9, the dust remover 13, the condensing pipeline 12, the second valve 14 and the metal hose 15, and the heat insulation layer is used for insulating the dedusting pipeline 9, the dust remover 13, the condensing pipeline 12, the second valve 14 and the metal hose 15, so that the temperature reduction speed is slowed down, and the heat insulation layer adopts the existing heat insulation materials which can be used as the heat insulation layer material of the invention.
Example 8:
the application method of the microwave oil removal recovery device for the oil-containing articles comprises the following steps of:
step one: preparation before starting up
Firstly closing all valves, opening the convenient door of the microwave processor 27, putting the oil-containing articles into the heating bin 36, then selecting to take out the hollow cylinder 31 or directly put the hollow cylinder into the containing disc 38 according to different oil-containing articles, finally closing the convenient door to seal the heating bin 36, opening the first valve 2 and the second valve 14, and closing the third valve 20, the fourth valve 42, the fifth valve 43, the sixth valve 46 and the seventh valve 47;
step two: boot preprocessing
Opening a water spraying sprayer 4 and a one-way valve 3, determining a water spraying mode according to different oil-containing objects in the first step, if the oil-containing objects in a heating bin 36 are directly placed on a containing disc 38 in the first step, directly spraying water, if the oil-containing objects in the heating bin 36 are on a hollowed cylinder 31 in the first step, starting a first motor 29, starting the hollowed cylinder 31 to rotate, rotating the hollowed cylinder 31, spraying water while the water spraying sprayer 4, stopping spraying water when the specific gravity of the water and the oil-containing objects reaches 0.05-0.6, namely closing the water spraying sprayer 4 and the one-way valve 3, opening a vacuum pump 1 to suck air in the cavities of the heating bin 36, a dust removing pipeline 9, the dust remover 13, a condensing pipeline 12, a condenser 18, a dry ash collecting box 40 and an oil-water layering device 41, observing an oxygen content sensor 26, and sequentially closing a first valve (2) and the vacuum pump 1 after the oxygen content is lower than 5%;
step three: heat treatment
On the basis of the second step, starting electromagnetic heating of the electric heating belt 32 and the electromagnetic induction coil 11, enabling the temperature of the inner shell of the heating bin 36, the dust removing pipeline 9, the dust remover 13, the condensing pipeline 12, the second valve 14 and the metal hose 15 to be more than or equal to 280 ℃ and less than or equal to 320 ℃, then opening the microwave generator 28 to heat the oil-containing articles in the heating bin 36, starting the thermal oxidizer 23 when the pressure of the fourth pressure sensor 19 reaches 1 KPa-5 KPa, opening the third valve 20, opening the water spray atomizer 4 and the one-way valve 3 when the temperature of the first temperature sensor 7 is more than or equal to 250 ℃, controlling water to spray to the oil-containing articles in a mode of opening the water spray atomizer from small to large or alternatively according to the position of the oil-containing articles, selecting whether to start the hollow cylinder 31 to rotate, keeping the temperature of the first temperature sensor 7 between 250 ℃ and 320 ℃, continuously heating and evaporating oil of the oil-containing article, simultaneously opening the sealing fan 21 to increase the flow rate of oil-water steam, sequentially dedusting by the deduster 13, condensing by the condenser 18 and oxidizing by the thermal oxidizer 23, wherein the dust removed by the deduster 13 finally falls into the dry ash collecting box 40, separating water condensed by the condenser 18 by the oil-water separator 41, then sequentially pumping the separated water into the water storage chamber 5 of the water spraying sprayer 4 through the fifth valve 43, the filter 44, the centrifugal pump 45 and the sixth valve 46, finally observing the oil-containing state of the oil-containing article through the portable door, controlling the heating treatment time until the final requirement is met, and finally entering the next step;
step four: shutdown recovery
On the basis of the third step, firstly, the spray water quantity of the water spraying sprayer 4 is increased, a large amount of water is evaporated, the gas flow rate is increased, a pipeline is purged, dust falls into the dust remover 13, meanwhile, the temperature of the first temperature sensor 7 is controlled to be 120-130 ℃, then, the electromagnetic heating of the microwave generator 28, the water spraying sprayer 4, the electric heating belt 32 and the electromagnetic heating coil 11 is closed, after 5-10 minutes, the sealing fan 21, the thermal oxidizer 23, the first motor 29, the second motor 35, the second valve 14 and the third valve 20 are closed, the microwave processor 27, the electric heating belt 32, the electromagnetic heating coil 11, the microwave generator 28, the heating bin 36 and the containing disc 38 are waited for natural cooling, then the treated oil-containing article is taken out, the fourth valve 42 is opened for oil recovery according to the requirement, or the fifth valve 43 and the seventh valve 47 are opened, the centrifugal pump 44 is started, the unreusable waste water is discharged, and finally all the valves and the centrifugal pump 44 are closed, and even if the whole device is shut down, the microwave oil recovery of the oil-containing article is finished.
Example 9:
the application method of the microwave oil removal recovery device for the oil-containing articles comprises the following steps of:
step one: preparation before starting up
Firstly closing all valves, opening the convenient door of the microwave processor 27, putting the oil-containing articles into the heating bin 36, then selecting to take out the hollow cylinder 31 or directly put the hollow cylinder into the containing disc 38 according to different oil-containing articles, finally closing the convenient door to seal the heating bin 36, opening the first valve 2 and the second valve 14, and closing the third valve 20, the fourth valve 42, the fifth valve 43, the sixth valve 46 and the seventh valve 47;
step two: boot preprocessing
Opening a water spraying sprayer 4 and a one-way valve 3, determining a water spraying mode according to different oil-containing objects in the first step, if the oil-containing objects in a heating bin 36 are directly placed on a containing disc 38 in the first step, directly spraying water, if the oil-containing objects in the heating bin 36 are on a hollowed cylinder 31 in the first step, starting a first motor 29, starting the hollowed cylinder 31 to rotate, rotating the hollowed cylinder 31, spraying water while the water spraying sprayer 4, stopping spraying water when the specific gravity of the water and the oil-containing objects reaches 0.05-0.6, namely closing the water spraying sprayer 4 and the one-way valve 3, opening a vacuum pump 1 to suck air in the cavities of the heating bin 36, a dust removing pipeline 9, the dust remover 13, a condensing pipeline 12, a condenser 18, a dry ash collecting box 40 and an oil-water layering device 41, observing an oxygen content sensor 26, and sequentially closing the first valve 2 and the vacuum pump 1 after the oxygen content is lower than 5%;
step three: heat treatment
On the basis of the second step, the electromagnetic heating of the electric heating belt 32 and the electromagnetic induction coil 11 is started, the temperatures of the inner shell of the heating bin 36, the dust removing pipeline 9, the dust remover 13, the condensing pipeline 12, the second valve 14 and the metal hose 15 are more than or equal to 280 ℃ and less than or equal to 320 ℃, then the microwave generator 28 is opened to heat the oil-containing articles in the heating bin 36, when the pressure of the fourth pressure sensor 19 reaches 1KPa, the thermal oxidizer 23 is started, the third valve 20 is opened, when the temperature of the first temperature sensor 7 is more than or equal to 250 ℃, the water sprayer 4 and the one-way valve 3 are opened, the water spray amount is controlled to spray water to the oil-containing articles in a mode of opening the water sprayer from small to large or intermittently, and whether the hollow cylinder 31 is started to rotate is selected according to the positions of the oil-containing articles, the temperature of the first temperature sensor 7 is kept between 250 ℃ and 320 ℃, oil of an oil-containing article is continuously heated and evaporated, a sealing fan 21 is opened to increase the flow rate of oil-water steam, dust is removed by a dust remover 13, a condenser 18 is condensed and a thermal oxidizer 23 is oxidized in sequence, dust removed by the dust remover 13 finally falls into a dry ash collecting box 40, water condensed by the condenser 18 is separated by an oil-water layering device 41, the separated water can sequentially pass through a fifth valve 43, a filter 44, a centrifugal pump 45 and a sixth valve 46, the water can be circularly pumped into a water storage chamber 5 of a water spraying sprayer 4, finally the oil-containing state of the oil-containing article is observed through a portable door, the heating treatment time is controlled until the final requirement is met, and finally the next step is entered;
step four: shutdown recovery
On the basis of the third step, firstly, the spray water quantity of the water spraying sprayer 4 is increased, a large amount of water is evaporated, the gas flow rate is increased, a pipeline is purged, dust falls into the dust remover 13, meanwhile, the temperature of the first temperature sensor 7 is controlled to be 120-130 ℃, then, the electromagnetic heating of the microwave generator 28, the water spraying sprayer 4, the electric heating belt 32 and the electromagnetic heating coil 11 is closed, after 5 minutes, the sealing fan 21, the thermal oxidizer 23, the first motor 29, the second motor 35, the second valve 14 and the third valve 20 are closed, the microwave processor 27, the electric heating belt 32, the electromagnetic heating coil 11, the microwave generator 28, the heating bin 36 and the containing disc 38 are waited for natural cooling, then the treated oil-containing article is taken out, the fourth valve 42 is opened for oil recovery according to the requirement, or the fifth valve 43 and the seventh valve 47 are opened, the centrifugal pump 44 is started, the unrepeatable waste water is discharged, and finally all the valves and the centrifugal pump 44 are closed, and even if the whole device is shut down, the microwave oil removal recovery of the oil-containing article is finished.
In the first step, the oily articles are classified into granular oily articles and soft oily articles such as gloves, clothes and cotton yarns, if the oily articles are granular, the hollow cylinder 31 is taken out and directly put into the containing tray 38, and if the oily articles are soft oily articles such as gloves, clothes and cotton yarns, the hollow cylinder 31 is put into.
In summary, the first valve 2, the second valve 14, the third valve 20, the fourth valve 42, the fifth valve 43, the sixth valve 46 and the seventh valve 47 described in embodiments 1-9 can be configured to be automatically controlled.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the scope of the knowledge of those skilled in the art without departing from the spirit of the present invention, which is within the scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
The technical solutions between the embodiments may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art that when the combination of technical solutions contradicts or cannot be implemented, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
Claims (8)
1. A microwave deoiling recovery device for oily objects is characterized in that: comprising
The microwave heating device comprises a microwave processor (27), wherein a heating bin (36) and a microwave generator (28) are arranged in the microwave processor (27), a microwave inlet is formed in the top of the heating bin (36), and a microwave outlet of the microwave generator (28) is communicated with the microwave inlet in the top of the heating bin (36);
the vacuum pump (1) is communicated with the heating bin (36) through a pipeline, and the pipeline is connected with the first valve (2);
the water spraying sprayer (4), the water spraying sprayer (4) is communicated with the heating bin (36) through a water spraying pipeline, the water spraying pipeline is connected with the one-way valve (3), the water spraying sprayer (4) is internally provided with the water storage chamber (5) and the water spraying nozzle, and the water spraying nozzle is communicated with the heating bin (36) through the water spraying pipeline;
the dust remover (13), the air inlet of the dust remover (13) is communicated with the heating bin (36) through the dust removing pipeline (9);
the dry ash collecting box (40) is communicated with the bottom of the dust remover (13) through a metal hose (15), the metal hose (15) is connected with a second valve (14), the bottom of the dry ash collecting box (40) is provided with a gravity sensor (39), and the bottom of the dry ash collecting box (40) is contacted with the ground through the gravity sensor (39);
the air inlet of the condenser (18) is communicated with the air outlet of the dust remover (13) through a condensing pipeline (12);
the oil-water separator (41), the oil-water separator (41) is communicated with the bottom of the condenser (18) through a pipeline, a water tank and an oil tank are arranged in the oil-water separator (41), the lower part of the water tank is connected with an outer water tank pipeline, the lower part of the oil tank is connected with an outer oil tank pipeline, and the outer water tank pipeline is also communicated with a water storage chamber (5) in the water spraying sprayer (4) through a water circulation pipeline (24);
the thermal oxidizer (23), the thermal oxidizer (23) is communicated with the air outlet of the condenser (18) through the tail gas pipeline (22), the air outlet of the condenser (18) is also connected with a third valve (20) and a sealing fan (21) in sequence through the tail gas pipeline (22);
the oil tank is characterized in that a fourth valve (42) is connected to an oil tank output pipeline, a fifth valve (43), a filter (44), a centrifugal pump (45) and a seventh valve (47) are sequentially connected to a water tank output pipeline between the centrifugal pump (45) and the seventh valve (47), a water circulation pipeline (24) is connected to the water tank output pipeline, and a sixth valve (46) is connected to the water circulation pipeline (24);
the microwave processor (27) at least comprises an outer shell and a convenient door which can be opened and closed with the outer shell, wherein the convenient door and the heating bin (36) form a closed cavity, the heating bin (36) comprises an inner shell, a microwave generator (28) is arranged in the outer shell outside the inner shell of the heating bin (36), and an electric heating belt (32) and a heat preservation and insulation layer (30) are sequentially arranged outside the inner shell of the heating bin (36) from inside to outside;
corresponding circular grooves are formed in the two opposite side walls of the middle part in the heating bin (36), the hollow cylinder (31) is detachably connected in the circular grooves in the two side walls, and a first motor (29) for driving the hollow cylinder (31) is further arranged in the circular groove in one side wall;
the heating bin is characterized in that a storage disc (38) is arranged at the center of the bottom of the heating bin (36), a groove is formed in the inner wall of the heating bin (36) at the bottom of the storage disc (38), a second motor (35) for driving the storage disc (38) to rotate is arranged in the groove, a thrust ball bearing (34) concentric with the second motor (35) is arranged in the groove, the storage disc (38) is placed on the thrust ball bearing (34), and the outer edge of the storage disc (38) is inclined outwards and is not contacted with the inner wall of the heating bin (36).
2. The microwave degreasing recovery apparatus for oil-containing articles according to claim 1, wherein: the inner shell of the heating bin (36) is made of metal.
3. The microwave degreasing recovery apparatus for oil-containing articles according to claim 1, wherein: the material adopted by the containing disc (38) is silica glass or alumina ceramic.
4. The microwave degreasing recovery apparatus for oil-containing articles according to claim 1, wherein: the microwave inlet at the top of the heating bin (36) is fixedly connected with a light-transmitting sheet (33), and the light-transmitting sheet (33) is made of silica glass or alumina ceramic.
5. The microwave degreasing recovery apparatus for oil-containing articles according to claim 1, wherein: the heating bin (36) be provided with first pressure sensor (6) and first temperature sensor (7), be provided with second temperature sensor (8) and second pressure sensor (10) on dust removal pipeline (9), be provided with third temperature sensor (16) and third pressure sensor (17) on condensation pipeline (12), be provided with fourth temperature sensor (25), fourth pressure sensor (19) and oxygen content sensor (26) on tail gas pipeline (22).
6. The microwave degreasing recovery apparatus for oil-containing articles according to claim 1, wherein: the dust removal pipeline (9), the dust remover (13), the condensing pipeline (12), the second valve (14) and the metal hose (15) are all provided with an electromagnetic heating coil (11) and an insulating layer from inside to outside.
7. A method for using a microwave deoiling recovery device for an oil-containing article, comprising the microwave deoiling recovery device for the oil-containing article according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
step one: preparation before starting up
Firstly closing all valves, opening the convenient door of a microwave processor (27), putting oil-containing articles into a heating bin (36), then selecting to take out a hollowed-out cylinder (31) or directly put the hollowed-out cylinder into a containing disc (38) according to different oil-containing articles, finally closing the convenient door to seal the heating bin (36), opening a first valve (2) and a second valve (14), and closing a third valve (20), a fourth valve (42), a fifth valve (43), a sixth valve (46) and a seventh valve (47);
step two: boot preprocessing
Opening a water spraying sprayer (4) and a one-way valve (3), determining a water spraying mode according to different oil-containing objects in the first step, directly spraying water if the oil-containing objects in a heating bin (36) are directly placed on a containing disc (38) in the first step, starting a first motor (29) if the oil-containing objects in the heating bin (36) are on a hollowed cylinder (31) in the first step, starting to rotate the hollowed cylinder (31), rotating the hollowed cylinder (31), spraying water while spraying the water spraying sprayer (4), stopping spraying water when the specific gravity of water and the oil-containing objects reaches 0.05-0.6, namely closing the water spraying sprayer (4) and the one-way valve (3), then opening a vacuum pump (1) to suck air in the cavities of the heating bin (36), a dust removing pipeline (9), the dust remover (13), a condensing pipeline (12), a condenser (18), a dry ash collecting box (40) and an oil-water layering device (41), observing an oxygen content sensor (26), and sequentially closing the first valve (2) and the vacuum pump (1) after the oxygen content is lower than 5%;
step three: heat treatment
On the basis of the second step, starting electromagnetic heating of an electric heating belt (32) and an electromagnetic heating coil (11), enabling the temperature of an inner shell of a heating bin (36), a dust removing pipeline (9), a dust remover (13), a condensing pipeline (12), a second valve (14) and a metal hose (15) to be more than or equal to 280 ℃ and less than or equal to 320 ℃, then starting a microwave generator (28) to heat oil-containing articles in the heating bin (36), starting a thermal oxidizer (23) when the pressure of a fourth pressure sensor (19) reaches 1 KPa-5 KPa, and opening a third valve (20) when the temperature of a first temperature sensor (7) is more than or equal to 250 ℃, the water spray atomizer (4) and the one-way valve (3) are opened to control the water quantity to spray water to the oil-containing article from small to large or alternatively, according to the position of the oil-containing article, whether the hollow cylinder (31) is started to rotate is selected, so that the temperature of the first temperature sensor (7) is kept between 250 ℃ and 320 ℃, the oil of the oil-containing article is continuously heated and evaporated, meanwhile, the sealing fan (21) is opened to increase the flow rate of oil-water steam, the oil-water steam sequentially passes through the dust remover (13) to remove dust, the condenser (18) to condense, the thermal oxidizer (23) to oxidize, wherein the dust removed by the dust remover (13) finally falls into the dry ash collecting box (40), and the water condensed by the condenser (18) is separated by the oil-water separator (41), then the separated water can sequentially pass through a fifth valve (43), a filter (44), a centrifugal pump (45) and a sixth valve (46), is circularly pumped into a water storage chamber (5) of a water spraying sprayer (4), finally, the oil-containing state of the oil-containing article is observed through a portable door, the heating treatment time is controlled until the final requirement is met, and finally, the next step is carried out;
step four: shutdown recovery
On the basis of the third step, firstly increasing the spraying water quantity of the water spraying sprayer (4), evaporating a large amount of water, increasing the gas flow rate, purging a pipeline, enabling dust to fall into the dust remover (13), simultaneously controlling the temperature of the first temperature sensor (7) between 120 and 130 ℃, then closing the microwave generator (28), the water spraying sprayer (4), the electric heating belt (32) and the electromagnetic heating coil (11), closing the sealing fan (21), the thermal oxidizer (23), the first motor (29), the second motor (35), the second valve (14) and the third valve (20) after 5 to 10 minutes, waiting for the microwave processor (27), the electric heating belt (32), the electromagnetic heating coil (11), the microwave generator (28), the heating bin (36) and the containing disc (38), taking out the treated oil-containing articles, opening the fourth valve (42) to recover the oil according to the requirement, or opening the fifth valve (43) and the seventh valve (47), starting the centrifugal pump, discharging the waste water which cannot be reused, and finally closing all the valves and the centrifugal pump, and shutting down the whole device to recover the oil-containing articles even if the microwave-containing articles are recovered.
8. The method for using the microwave deoiling recovery device for the oil-containing articles according to claim 7, wherein the method comprises the following steps: in the first step, the oil-containing articles are divided into granular oil-containing articles and soft oil-containing articles, if the oil-containing articles are granular, the hollow cylinder (31) is taken out, the oil-containing articles are directly placed into the containing tray (38), and if the oil-containing articles are soft oil-containing articles, the oil-containing articles are placed into the hollow cylinder (31).
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| US7807048B2 (en) * | 2006-02-09 | 2010-10-05 | Collette Jerry R | Thermal recovery of petroleum crude oil from tar sands and oil shale deposits |
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| WO1982002761A1 (en) * | 1981-02-06 | 1982-08-19 | Richard D Smith | Microwave fabric dryer method and apparatus |
| CN103132935A (en) * | 2013-02-23 | 2013-06-05 | 中国石油大学(华东) | Staged vacuum drying treatment process and treatment device for oilfield drilling cuttings |
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