CN113603326A - Oil field sludge recovery processing apparatus - Google Patents
Oil field sludge recovery processing apparatus Download PDFInfo
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- CN113603326A CN113603326A CN202111011976.5A CN202111011976A CN113603326A CN 113603326 A CN113603326 A CN 113603326A CN 202111011976 A CN202111011976 A CN 202111011976A CN 113603326 A CN113603326 A CN 113603326A
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- mixing box
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- 239000010802 sludge Substances 0.000 title claims abstract description 115
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 32
- 239000003814 drug Substances 0.000 claims abstract description 30
- 238000000605 extraction Methods 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000008394 flocculating agent Substances 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 22
- 239000001569 carbon dioxide Substances 0.000 claims description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 11
- 239000002689 soil Substances 0.000 claims description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 235000011089 carbon dioxide Nutrition 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 42
- 239000003208 petroleum Substances 0.000 abstract description 9
- 239000010779 crude oil Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012216 screening Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an oil field sludge recovery processing device, which comprises a mixing box, wherein the upper end of the mixing box is connected with a liquid medicine box for providing mixed liquid medicine and a sludge feeding hole, and the liquid medicine box is internally provided with mixed solution of a flocculating agent, a demulsifier and a regulator; a stirring mechanism, a replaceable filtering extraction box and a temperature control reaction layer are arranged in the mixing box; the output end of the mixing tank is connected with a three-phase centrifuge through a connecting pipeline, and an oil outlet, a water outlet and a sludge outlet of the three-phase centrifuge are respectively connected with an oil storage tank, a water tank and a sludge storage tank through connecting pipelines. The invention greatly improves the recovery efficiency of crude oil in the sludge, collects the crude oil to recover the petroleum in the oily sludge, can recycle waste materials and save petroleum energy.
Description
Technical Field
The invention relates to the technical field of oil pollution treatment in oil exploitation, in particular to an oil field sludge recovery treatment device.
Background
The oily sludge is oily solid waste generated in the processes of oil exploitation, transportation, refining and oily sewage treatment; the method mainly comprises three sources, wherein crude sludge is generated in the mining process, and in the mining process, some crude oil is sprayed or transported to the ground through an oil pipe, so that crude sludge can be formed in soil entering people; the sludge produced in the production process is formed by the peripheries of various storage tanks, sedimentation tanks and dehydration tanks of the relay station and the united station. If the oily sewage sludge is directly discharged, not only can the environment be seriously polluted, but also the petroleum resource can be seriously wasted.
The existing oil field sludge treatment device has the problem of low recovery efficiency of crude oil in sludge; meanwhile, the problems of slow release rate and incomplete release of crude oil in the sludge caused by insufficient stirring exist, and a large amount of manpower is needed to participate in the sludge treatment process.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings, an object of the present invention is to provide an oil field sludge recycling apparatus.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the oil field sludge recovery treatment device comprises a mixing box, wherein the upper end of the mixing box is connected with a liquid medicine box for providing mixed liquid medicine and a sludge feeding hole, and mixed solution of a flocculating agent, a demulsifier and a regulator is arranged in the liquid medicine box;
a stirring mechanism, a replaceable filtering extraction box and a temperature control reaction layer are arranged in the mixing box;
the output end of the mixing tank is connected with a three-phase centrifuge through a connecting pipeline, and an oil outlet, a water outlet and a sludge outlet of the three-phase centrifuge are respectively connected with an oil storage tank, a water tank and a sludge storage tank through connecting pipelines.
The stirring mechanism comprises a main shaft penetrating through the mixing box, the main shaft is of a hollow tubular structure, a plurality of stirring rods are circumferentially arranged at the lower part of the main shaft, and the upper part of the main shaft is connected with the power output end of the first motor through a conical gear set; the main shaft is axially provided with a central shaft which can move up and down, the inner wall of the main shaft is in clearance fit with the central shaft and is detachably connected with the central shaft through a first pin, the lower end of the central shaft is provided with a brush plate, and the upper end of the central shaft is detachably connected with a telescopic hydraulic cylinder.
The filtering and pumping box comprises a group of clamping grooves arranged in the mixing box and a pumping box with an opening above, wherein the bottom of the pumping box is provided with a filtering screen, the outward horizontal extension of the left side and the right side of the bottom of the pumping box are clamped with the clamping grooves, and one side of the mixing box 1 is provided with an opening matched with the pumping box.
The temperature control reaction layer comprises a first heating plate arranged on the inner wall of the lower half part in the mixing box, a second heating plate arranged in the connecting pipeline and a heating control switch arranged outside the mixing box, and the first heating plate and the second heating plate are electrically connected with the heating control switch through connecting wires.
The water tank is provided with a neutralization tank and a disinfection tank, and the water tank is internally provided with an aerator.
The sludge storage tank is connected with a hot air rotary-vane drier for sludge drying treatment through a spiral conveying pipeline, and the output end of the hot air rotary-vane drier is connected with a sludge collecting box through a spiral conveying pipeline.
The sludge storage tank is connected with a liquid carbon dioxide steel cylinder, the output end of the sludge storage tank is connected with a hot air rotary-vane drier through a spiral conveying pipeline, and the output end of the hot air rotary-vane drier is connected with an extractor.
The sludge storage tank is connected with a liquid carbon dioxide steel cylinder, the output end of the sludge storage tank is connected with a dry ice granulator through a spiral conveying pipeline, and the output end of the dry ice granulator is connected with an extractor.
The output end of the extractor is connected with a separation tank, a first pressure reducing valve is arranged between the extractor and the separation tank, the output end of the separation tank is divided into two paths, one path is connected with a collection tank through a pipeline, and the other path is connected with an earth collection tank through a spiral conveying pipeline; a second pressure reducing valve is arranged between the separation tank and the collecting tank, the collecting tank is connected with a compressor through a pipeline, and the output end of the compressor is communicated with the extractor.
A liquid pump and a Saisher water flow sensor are arranged between the liquid medicine box and the mixing box, and the Saisher water flow sensor is arranged at the output end of the liquid pump.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an oil field sludge recovery processing device, which performs homogenization treatment through a stirring mechanism in a mixing box to achieve a homogenization effect; meanwhile, a brush plate in the stirring mechanism is matched with the filtering extraction box to extrude and stir the mixture in the filtering extraction box, so that the screen mesh in the filtering extraction box is prevented from being blocked, the sludge mixture in the mixing box is filtered fully by primary screening, and the screening efficiency is accelerated; in addition, the mixing box is connected with a liquid medicine box, and the mixed solution of the flocculating agent, the demulsifier and the regulator in the liquid medicine box enables suspended particles of sludge in a temperature control reaction layer at the bottom of the mixing box to be gathered and settled, so that the dehydration performance of the sludge is better. The filtering pumping box in the mixing box is used for sieving impurities, stones and other blocky solids in the oily sludge, so that the oily sludge in the temperature control reaction layer is more cleanly treated, the contact of reactants in the temperature control reaction layer is facilitated to be sufficient, the reaction is more sufficient, the separation or extraction of water, petroleum and soil is facilitated, and the treatment effect of the oily sludge is better.
The sludge in the mixing box is filtered and settled to obtain sludge with less impurities and finer particles, and the oil, water and soil in the sludge are separated under the action of the centrifugal force of the rotary separation of the three-phase centrifuge; in addition, the separated water is purified and can be reused, so that the pollution to the environment is reduced; the oil-containing sludge is subjected to oil separation and extraction again, so that the recovery efficiency of crude oil in the sludge is greatly improved, and the oil in the oil-containing sludge is recovered and can be reused, so that waste is changed into valuable, and the oil energy is saved; the treatment of the sludge is convenient, and the pollution of the sludge to the surrounding environment is prevented; the invention has more reasonable integral structure and reduces the manpower labor.
Drawings
FIG. 1 is a first schematic view of the apparatus of the present invention;
FIG. 2 is a second schematic structural view of the apparatus of the present invention;
FIG. 3 is a third schematic view of the apparatus of the present invention.
In the figure, 1 — mixing box; 1-sludge feed inlet; 1-2-stirring mechanism; 1-2-1-main shaft; 1-2-stirring rod; 1-2-3-bevel gear set; 1-2-4-a first electric machine; 1-2-5-central axis; 1-2-6-brush plate; 1-2-7-telescopic hydraulic cylinder; 1-3-filtering and pumping box; 1-3-1-mesh screen; 1-3-2-pumping box; 1-4-temperature control reaction layer; 1-4-1-a first heating plate; 1-4-2-second hotplate; 1-4-3-connecting pipes; 1-4-heating control switch; 2-liquid medicine box; 2-1-liquid pump; 2-a seigel water flow sensor; 3-three-phase centrifuge; 4-oil storage tank; 5, a water tank; 5-1-neutralization tank; 5-2-a disinfection tank; 5-3-an aerator; 6, a sludge storage tank; 7-hot air rotary-vane drier; 8-dry ice granulator; 9-carbon dioxide steel cylinder; 10-an extractor; 11-a separation tank; 12-a soil collection box; 13-a collection tank; 14-a compressor; 15-a first pressure relief valve; 16-a second pressure reducing valve; 17-sludge pump; and 18, supporting frames.
Detailed Description
The present invention will now be described in detail with reference to the drawings, wherein the described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Preferably, the liquid medicine box 2 is internally provided with a mixed solution of a flocculating agent, a demulsifying agent and a regulator, suspended particles of sludge in the temperature control reaction layers 1-4 at the bottom of the mixing box 1 can be gathered and settled through the flocculating agent, and the demulsifying agent and the regulator can make the sludge have better dehydration performance.
Furthermore, a stirring mechanism 1-2, a replaceable filtering extraction box 1-3 and a temperature control reaction layer 1-4 are arranged in the mixing box 1, and the temperature control reaction layer 1-4 is used for enabling suspended particles in settled sludge to be better gathered and settled and greatly improving the dehydration performance of the sludge; the filtering pumping box 1-3 is used for sieving impurities, stones and other blocky solids in the oily sludge, so that the oily sludge in the temperature control reaction layer 1-4 is treated more cleanly, reactants in the temperature control reaction layer 1-4 are in full contact, the reaction is more sufficient, the separation or extraction of water, petroleum and soil is facilitated, and the treatment effect of the oily sludge is better.
Specifically, in the invention, the stirring mechanism 1-2 comprises a main shaft 1-2-1 penetrating through the mixing box 1, the main shaft 1-2-1 is of a hollow tubular structure, a plurality of stirring rods 1-2-2 are circumferentially arranged at the lower part of the main shaft 1-2-1, the stirring rods 1-2-2 are all positioned in a mixing and stirring area at the upper half part of the mixing box 1, and the upper part of the main shaft 1-2-1 is connected with a power output end of a first motor 1-2-4 through a conical gear set 1-2-3; a central shaft 1-2-5 capable of moving up and down is axially arranged in the main shaft 1-2-1, the inner wall of the main shaft 1-2-1 is in clearance fit with the central shaft 1-2-5 and is detachably connected with the central shaft through a first pin, a brush plate 1-2-6 is arranged at the lower end of the central shaft 1-2-5, a telescopic hydraulic cylinder 1-2-7 is detachably connected with the upper end of the central shaft 1-2-5, and the telescopic end of the telescopic hydraulic cylinder 1-2-7 is connected with the central shaft 1-2-5 through a second pin or a connecting nut; the brush plate 1-2-6 can move up and down along with the central shaft 1-2-5, the brush plate 1-2-6 is matched with the filtering extraction box 1-3 to extrude and stir the mixture in the filtering extraction box 1-3, so that the screen mesh in the filtering extraction box 1-3 is prevented from being blocked, the sludge mixture in the mixing box 1 is fully filtered by primary screening, and the screening efficiency is accelerated.
When the brush plate 1-2-6 needs to be adjusted in the up-and-down position, the telescopic hydraulic cylinder 1-2-7 is started, the telescopic end is moved and sleeved close to the central shaft 1-2-5, then the telescopic end is fixed through a connecting nut or a second pin, the first pin for connecting the main shaft 1-2-1 and the central shaft 1-2-5 is removed, and the central shaft 1-2-5 can move up and down along with the movement of the telescopic end of the telescopic hydraulic cylinder 1-2-7 in the main shaft 1-2-1 to adjust the position;
after the up-down position of the brush plate 1-2-6 is adjusted, the main shaft 1-2-1 and the central shaft 1-2-5 are fixed through a first pin, a connecting nut or a second pin for connecting the central shaft 1-2-5 and the telescopic end of the telescopic hydraulic cylinder 1-2-7 is removed, when the main shaft 1-2-1 is driven to rotate by the first motor 1-2-4, the central shaft 1-2-5 drives the brush plate 1-2-6 to rotate together with the main shaft 1-2-1, and the mixture is extruded and stirred; the stirring mechanism 1-2 performs homogenization treatment by stirring in the mixing box 1, and has homogenization effect.
The filtering extraction box 1-3 comprises a group of clamping grooves or sliding rails arranged in the mixing box 1 and an extraction box 1-3-2 with an opening at the upper part, the bottom of the extraction box 1-3-2 is provided with a filtering screen 1-3-1, the left side and the right side of the bottom of the extraction box 1-3-2 extend outwards and horizontally to be clamped with the clamping grooves, one side of the mixing box 1 is provided with an opening matched with the extraction box 1-3-2, and the extraction box 1-3-2 can be installed along the clamping grooves or can be pulled outwards for replacement; when a group of sliding rails is arranged in the mixing box 1, two groups of symmetrical pulleys are arranged at the bottoms of the left side and the right side of the drawing box 1-3-2, the pulleys are matched with the sliding rails, and the drawing box 1-3-2 is arranged along the sliding rails or is outwards drawn and replaced.
The temperature control reaction layer 1-4 comprises a first heating plate 1-4-1 arranged on the inner wall of the inner lower half part of the mixing box 1, a second heating plate 1-4-2 arranged in a connecting pipeline 1-4-3 and a heating control switch 1-4-4 arranged on the outer side of the mixing box 1, wherein the first heating plate 1-4-1 and the second heating plate 1-4-2 are electrically connected with the heating control switch 1-4-4 through connecting wires, and the first heating plate 1-4-1 and the second heating plate 1-4-2 can be subjected to temperature regulation and switching through the heating control switch 1-4-4; the reaction in the mixing box 1 can be promoted by temperature control adjustment, and the aggregation and sedimentation of sludge are facilitated.
Preferably, the oil field sludge recovery processing device further comprises a support frame 18 for installing the mixing box 1, the liquid medicine box 2, the first motor 1-2-4 and the telescopic hydraulic cylinder 1-2-7.
In the invention, the output end of the mixing box 1 is connected with a three-phase centrifuge 3 through a connecting pipeline 1-4-3, and the three-phase centrifuge 3 is used for separating sludge water, oil and oil sludge; an oil outlet, a water outlet and a sludge outlet of the three-phase centrifuge 3 are respectively connected with an oil storage tank 4, a water tank 5 and a sludge storage tank 6 through connecting pipelines; the sludge in the mixing box 1 is firstly filtered and settled to obtain sludge with less impurities and finer particles, and then the sludge is subjected to the action of centrifugal force of rotary separation of a three-phase centrifuge 3 to realize the separation of oil, water and soil in the sludge; in addition, the separated water is purified and can be reused, so that the pollution to the environment is reduced; the petroleum in the oil sludge is separated or extracted and collected in the oil storage tank 4, so that the petroleum in the oil-containing sludge is recovered and can be reused, and the waste is changed into valuable.
Preferably, a sludge pump 17 is arranged between the mixing box 1 and the three-phase centrifuge 3.
Preferably, the water tank 5 is provided with a neutralization tank 5-1 and a disinfection tank 5-2, and an appropriate amount of acid or alkali is added according to different water qualities in the water tank 5, so that the pH value of water in the water tank 5 meets the requirement of the water quality index of drainage on the pH value; the disinfection tank 5-2 contains disinfection drugs, the disinfection drugs are potassium permanganate, hydrogen peroxide, chlorine dioxide or quicklime, and the disinfection drugs can disinfect, sterilize and deodorize water in the water tank 5; furthermore, an aerator 5-3 is arranged in the water tank 5, and the water in the water tank 5 obtains enough dissolved oxygen through the aerator 5-3 to prevent stink.
Based on the above embodiment, as shown in fig. 2, the sludge storage tank 6 is connected with a hot air rotary-vane dryer 7 for sludge drying treatment through a spiral conveying pipeline, and an output end of the hot air rotary-vane dryer 7 is connected with a soil collection box 12 through a spiral conveying pipeline; the high-humidity sludge in the sludge storage tank 6 is dried once through the hot air rotary-vane drier 7, and the drying time is short, generally 2-10 minutes; since the high-speed stirring blade stirs the highly wet sludge violently, the sludge can be in good contact with the hot air. Mud is divided the flash evaporation in hot-blast rotary-vane drier 7 first half, and hot-blast temperature sharply drops in hot-blast rotary-vane drier 7, consequently, even use high temperature hot-blast, the temperature rise of mud is not high yet, and quick drying, and then make the high viscosity mud fast drying after the centrifugal treatment, convenient transportation is favorable to backfilling, avoids high viscosity mire to cause the potential safety hazard.
Based on the above embodiment, as shown in fig. 3, the sludge storage tank 6 is connected with a liquid carbon dioxide steel cylinder 9, an input end of the sludge storage tank 6 is connected with an output end of the carbon dioxide steel cylinder 9, and two ends of the sludge storage tank 6 are hermetically connected; the spiral conveyor in the sludge storage tank 6 is connected with the spirals in the spiral conveying pipelines at two ends of the sludge storage tank 6, and the main shaft of the spiral conveyor in the sludge storage tank 6 is rotatably connected with the sludge storage tank 6 through a bearing. Further, the output end of the sludge storage tank 6 is connected with a hot air rotary-vane dryer 7 through a spiral conveying pipeline, or is connected with a dry ice granulator 8, the output end of the hot air rotary-vane dryer 7 or the dry ice granulator 8 is connected with an extractor 10, the output end of the extractor 10 is connected with a separation tank 11, a first pressure reducing valve 15 is arranged between the extractor 10 and the separation tank 11, the output end of the separation tank 11 is divided into two paths, one path is connected with a collection tank 13 through a pipeline, extracted and separated petroleum and supercritical carbon dioxide enter the collection tank 13, and the other path is connected with an earth collection tank 12 through a spiral conveying pipeline; a second pressure reducing valve 16 is arranged between the separation tank 11 and the collection tank 13, the collection tank 13 is connected with a compressor 14 through a pipeline, the output end of the compressor 14 is communicated with the extractor 10, and the supercritical carbon dioxide enters the extractor 10 again through the compressor 14 for recycling.
The working principle of this embodiment is: mixing the oily sludge and liquid carbon dioxide in a mixer, and putting the mixture into a dry ice granulator for granulation; placing the oil sludge-dry ice particles in a supercritical extractor 10, and enabling carbon dioxide to reach a supercritical state under certain temperature and pressure conditions; extracting oil from the oily sludge according to the high dissolving capacity of the supercritical fluid by changing the temperature and the pressure; by changing the pressure, the oil is separated out in the separator tank and flows into the collection tank 13.
In the working conditions and process of the extractor 10, oil sludge-dry ice particles are put into the extractor 10, the temperature is adjusted to 31.2 ℃, and the pressure is adjusted to 7.3MPa, so that carbon dioxide is in a supercritical state; then, the temperature is adjusted to 35.4 ℃ of extraction temperature, and after the temperature is stabilized, the pressure is adjusted to 10.8MPa of extraction pressure; the separation pressure is adjusted to 8MPa through a first pressure reducing valve 15, the carbon dioxide dissolved with the oily sludge enters a separation tank 11 together, the separation pressure is adjusted to 5MPa through a second pressure reducing valve 15, the extracted and separated petroleum and supercritical carbon dioxide enter a collection tank 13, and the supercritical carbon dioxide enters an extractor 10 again through a compressor 14 for reutilization; the extracted and separated sludge solid particles enter the soil collection box 12 through a spiral conveying pipeline. So far, carry out the oil once more to oily sludge and draw, separate oil and earth once more in the oily sludge for the mud oil content after handling can reach national emission standard, prevent that mud from causing the pollution to surrounding environment, can backfill earth nearby, has reduced environmental pollution, perhaps will discharge the earth solid, input in the cement brick machine main part, realize waste recovery, the purpose of resource recycle, make overall structure more reasonable.
It will be appreciated by those skilled in the art that the above embodiments are merely preferred embodiments of the invention, and thus, modifications and variations may be made in the invention by those skilled in the art, which will embody the principles of the invention and achieve the objects and objectives of the invention while remaining within the scope of the invention.
Claims (10)
1. The oil field sludge recovery treatment device is characterized by comprising a mixing box (1), wherein the upper end of the mixing box (1) is connected with a liquid medicine box (2) for providing mixed liquid medicine and a sludge feeding hole (1-1), and a mixed solution of a flocculating agent, a demulsifier and a regulator is arranged in the liquid medicine box (2);
a stirring mechanism (1-2), a replaceable filtering extraction box (1-3) and a temperature control reaction layer (1-4) are arranged in the mixing box (1);
the output end of the mixing box (1) is connected with a three-phase centrifuge (3) through a connecting pipeline (1-4-3), and the oil outlet, the water outlet and the sludge outlet of the three-phase centrifuge (3) are respectively connected with an oil storage tank (4), a water tank (5) and a sludge storage tank (6) through connecting pipelines.
2. The oilfield sludge recycling and processing device according to claim 1, wherein the stirring mechanism (1-2) comprises a main shaft (1-2-1) penetrating through the mixing box (1), the main shaft (1-2-1) is of a hollow tubular structure, a plurality of stirring rods (1-2-2) are circumferentially arranged at the lower part of the main shaft (1-2-1), and the upper part of the main shaft (1-2-1) is connected with the power output end of the first motor (1-2-4) through a conical gear set (1-2-3); a central shaft (1-2-5) capable of moving up and down is axially arranged in the main shaft (1-2-1), the inner wall of the main shaft (1-2-1) is in clearance fit with the central shaft (1-2-5) and is detachably connected with the central shaft through a first pin, a brush plate (1-2-6) is arranged at the lower end of the central shaft (1-2-5), and a telescopic hydraulic cylinder (1-2-7) is detachably connected with the upper end of the central shaft (1-2-5).
3. The oilfield sludge recycling device according to claim 1, wherein the filtering extraction box (1-3) comprises a set of clamping grooves arranged in the mixing box (1) and an extraction box (1-3-2) with an opening at the upper part, the bottom of the extraction box (1-3-2) is provided with a filtering screen (1-3-1), the left side and the right side of the bottom of the extraction box (1-3-2) extend outwards and horizontally extend to be clamped with the clamping grooves, and one side of the mixing box (1) is provided with an opening matched with the extraction box (1-3-2).
4. The oilfield sludge recovery processing device according to claim 1, wherein the temperature control reaction layer (1-4) comprises a first heating plate (1-4-1) installed on the inner wall of the inner lower half part of the mixing box (1), a second heating plate (1-4-2) installed in the connecting pipeline (1-4-3), and a heating control switch (1-4-4) installed on the outer side of the mixing box (1), and the first heating plate (1-4-1) and the second heating plate (1-4-2) are electrically connected with the heating control switch (1-4-4) through connecting wires.
5. The oilfield sludge recycling device according to claim 1, wherein the water tank (5) is provided with a neutralization tank (5-1) and a disinfection tank (5-2), and the water tank (5) is internally provided with an aerator (5-3).
6. The oilfield sludge recycling and processing device according to claim 1, wherein the sludge storage tank (6) is connected with a hot air rotary-vane drier (7) for sludge drying treatment through a spiral conveying pipeline, and the output end of the hot air rotary-vane drier (7) is connected with a soil collection box (12) through a spiral conveying pipeline.
7. The oilfield sludge recycling device according to claim 6, wherein the sludge storage tank (6) is connected with a liquid carbon dioxide steel cylinder (9), the output end of the sludge storage tank (6) is connected with the hot air rotary-vane drier (7) through a spiral conveying pipeline, and the output end of the hot air rotary-vane drier (7) is connected with the extractor (10).
8. The oilfield sludge recycling device according to claim 6, wherein the sludge storage tank (6) is connected with a liquid carbon dioxide steel cylinder (9), the output end of the sludge storage tank (6) is connected with a dry ice pelletizer (8) through a spiral conveying pipeline, and the output end of the dry ice pelletizer (8) is connected with an extractor (10).
9. The oilfield sludge recycling and processing device according to claim 7 or 8, wherein the output end of the extractor (10) is connected with a separation tank (11), a first pressure reducing valve (15) is arranged between the extractor (10) and the separation tank (11), the output end of the separation tank (11) is divided into two paths, one path is connected with a collection tank (13) through a pipeline, and the other path is connected with a soil collection tank (12) through a spiral conveying pipeline; a second pressure reducing valve (16) is arranged between the separation tank (11) and the collection tank (13), the collection tank (13) is connected with a compressor (14) through a pipeline, and the output end of the compressor (14) is communicated with the extractor (10).
10. The oilfield sludge recycling device according to claim 1, wherein a liquid pump (2-1) and a Sail water flow sensor (2-2) are arranged between the liquid medicine tank (2) and the mixing tank (1), and the Sail water flow sensor (2-2) is installed at an output end of the liquid pump (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011976.5A CN113603326A (en) | 2021-08-31 | 2021-08-31 | Oil field sludge recovery processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011976.5A CN113603326A (en) | 2021-08-31 | 2021-08-31 | Oil field sludge recovery processing apparatus |
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| CN113603326A true CN113603326A (en) | 2021-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119219275A (en) * | 2024-11-21 | 2024-12-31 | 青岛百利达环保科技有限公司 | A process for removing oil and impurities from oilfield reinjection water |
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2021
- 2021-08-31 CN CN202111011976.5A patent/CN113603326A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119219275A (en) * | 2024-11-21 | 2024-12-31 | 青岛百利达环保科技有限公司 | A process for removing oil and impurities from oilfield reinjection water |
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Application publication date: 20211105 |