CN101428247B - Pollution-free oil-containing mud cleaning treatment method and treatment system thereof - Google Patents
Pollution-free oil-containing mud cleaning treatment method and treatment system thereof Download PDFInfo
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- CN101428247B CN101428247B CN2008101536453A CN200810153645A CN101428247B CN 101428247 B CN101428247 B CN 101428247B CN 2008101536453 A CN2008101536453 A CN 2008101536453A CN 200810153645 A CN200810153645 A CN 200810153645A CN 101428247 B CN101428247 B CN 101428247B
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- 238000004140 cleaning Methods 0.000 title 1
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Abstract
The invention relates to a pollution-free oily sediment purification treatment method and a treatment system, and the implementation steps are as follows: adopting a mechanical feeding device for conveying oily sediment to a miscellany removing and sorting device, filtering out and removing the miscellanies therein, perfusing hot water and a reagent into the oily sediment; evenly regulating the oily sediment through mechanical rolling; treating oil, water and sediment in an input tank through a cavitation and air flotation three-phase separator, so as to realize the three-phase separation of the oil, the water and the sediment, and discharging most of the separated oil; separating the sediment through a cyclone separator, and discharging net sand; separating slurry through a centrifuge, discharging net mud; separating fine mud from the water through a pressing filter, discharging net fine mud; separating the oil-water through natural ascending and descending, outputting the oil, and continuously heating water for the cyclic utilization; and curling and molding the discharged net sand and net mud according to routine. The invention realizes the resource recovery of crude oil in oily sediment and reduces the cost for purifying and treating oily sediment effectively, and the purified sediment is made into cured resin used for building materials.
Description
Technical field
The present invention relates to a kind of purifying treatment method and system, particularly a kind of pollution-free oil-containing sediment and purification processing method and treatment system.
Background technology
At present, at home and abroad a large amount of oily sludge sand of meeting generation on each link, its complicated component are carried, transported to crude oil development, production, refinery, pipeline, oil-containing, water and solid mud, sand are measured all higher, be oil, mud, sand, the heterogeneous admixture of water, belong to solid waste, can not directly utilize.These discarded objects more can not at will discharge, otherwise can cause serious environmental to pollute.Produce oily sediment because the oil field is a large amount of throughout the year, and constantly increase accumulation, be deposited in for a long time in the open-air atmosphere, can't handle, taken a large amount of land resources, caused direct pollution to environment, petroleum-type wherein and poisonous and harmful substance are along with rainwash contaminated soil and water source.This problem has been the difficult problem that this field is left over for many years, does not still have effective solution at present.
Existing oily sediment purifying treatment method mainly is after adding chemical agent, to handle with following several method:
(1) with hot water silt is cleaned, the oil that will float with Oil scraper scrapes, but adopts the silt after this method is cleaned still to contain more oil, and the water and the oily sediment that clean usefulness can cause secondary pollution again when discharging.
(2) carry out rotational flow separation after with hot water oil sediment being mixed, this method can't be separated oil and thin mud, thereby causes secondary pollution when causing the water that contains thin mud to discharge.
(3) with hot water oil sediment is mixed the back and adopt the air supporting principle to separate, thin mud is carried out centrifuge again separate, this method technological process is long, and there is the secondary pollution problem equally in inferior separating effect in the discharge process.
(4) with hot water oil sediment is mixed after, the utilization supersonic cavity principle is separated, and more all solidfied materials is carried out centrifuge and separates, this method can not be separated mud with husky, make solidfied material can only do exhaust emission and handle, be unfavorable for the recycling of resource, and can increase operating cost.
(5) with more than the oily sediment heating, coking to 400 ℃, carry out catalytic cracking and separate, oil is taken out with the way of distillation, this method operating temperature height, and have potential safety hazard in the operation, and also the solidfied material that keeps a large amount of gel pitch fat is still pollution sources.
(6) the bio-separation method is still under test at present, does not still have the successful example of a large amount of industrial treatment.
Though, above-mentioned the whole bag of tricks can be finished oily sediment part purified treatment to a certain extent, but lacking a kind of energy-conservation, synthesization processing method efficiently and system carries out the pollution-free oil-containing sediment and purification and handles, existing purifying treatment method and device ubiquity purified treatment inefficiency easily cause secondary pollution problems.
Therefore, provide a kind of pollution-free oil-containing sediment and purification processing method and treatment system, reduce and pollute, improve work efficiency, reduce the purified treatment cost, become one of current this those skilled in the art's urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of reasonable in design, practicality and high efficiency, safe and reliable, the pollution-free oil-containing sediment and purification processing method and the treatment system that are beneficial to energy-conserving and environment-protective.
The technical solution adopted in the present invention is for achieving the above object:
A kind of pollution-free oil-containing sediment and purification processing method with oily sediment deposit isolation of purified, is characterized in that implementation step is as follows:
(1) uses foreign material except that selecting machine to sort the foreign material that screen out in the oil sediment; The application machine feeding device is evenly sent into foreign material except that selecting machine to pour into hot water and fractionated polymer simultaneously from demulsifier in oil sediment with oily sediment, the hot water temperature is 40～95 ℃, or adding delivering vapor, its temperature is not less than 35 ℃ with the operating temperature of the terminal cyclone separator of assurance system and is as the criterion; Every cubic metre of oil sediment perfusion hot water amount is 1～7 ton, and it is 1～6 kilogram from the demulsifier pharmaceutical quantities that every cubic metre of oil sediment adds fractionated polymer;
(2) the oily sediment homogeneous is modulated; Adopt cal rolling to stir the effect of giving full play to the broken glue of medicament breakdown of emulsion;
(3) cavitation air supporting three phase separation; In tank body, oil, water, silt are carried out three phase separation;
(3.1) tangentially leave greasy filth mortar inlet on cylindric tank body top, and at the tank body internal upper part eddy flow guider is set, the greasy filth slurry is with the pressure of 0.1～0.4MPa, and per hour 5～40 cubic metres flow enters tank body, carries out rotational flow separation by the eddy flow guider;
(3.2) in the center, middle and lower part of cylindric tank body, the supersonic generator of installation power 1～8Kw, frequency 〉=20KHz carries out ultrasonic cavitation to the greasy filth mortar in the tank body and cleans;
(3.3) in the bottom of cylindric tank body, installation can spray the pipeline of water vapour downwards, the greasy filth mortar in the tank body is carried out dissolved air floatation handle;
(4) most of oil and low amounts of water are discharged from cavitation air supporting three phase separator tank body top, enter oil-water separation tank, mud, sand, deposit and most of water pump from cavitation air supporting three phase separator tank base, add the flocculant that contains 0.1%～0.2% polyacrylamide (PAM) simultaneously, every cubic metre of mud adds 0.5～4 kilogram;
(5) silt separates: cement mortar is with the pressure of 0.03～0.4MPa, and per hour 5～40 cubic metres flow enters cyclone separator, and moisture silt is separated;
(6) clean beach volleyball goes out, and is cured forming processes after the dehydration routinely;
(7) Separation of Solid and Liquid; Use centrifuge the water in the aqueous slurry is separated out with a small amount of oil, enter oil-water separation tank;
(8) simultaneously clean mud is discharged, and is cured forming processes routinely;
(9) the thin mud that enters the oil-water separation tank front and back is told thin mud with the press type filter.
A kind of treatment system that adopts above-mentioned pollution-free oil-containing sediment and purification processing method, this system is provided with mechanically materials device, the corresponding foreign material that are provided with it remove the machine that selects, be provided with heat-exchanger pump and grug feeding jar and foreign material except that selecting machine UNICOM, foreign material remove discharging opening and the mud homogeneous preparer UNICOM that selects machine, and mud homogeneous preparer is by slush pump and cavitation air supporting three phase separator UNICOM; Cavitation air supporting three phase separator and steam generator UNICOM, the top outlet and the profit storage tank UNICOM of cavitation air supporting three phase separator, the profit storage tank is by oil pump and oil-water separation tank UNICOM, and the lower part outlet of cavitation air supporting three phase separator is by slush pump and grug feeding jar and cyclone separator UNICOM; The top outlet of cyclone separator is by gravity tank and centrifuge UNICOM, and the lower part outlet correspondence of cyclone separator is provided with dewater unit, sends into dewater unit dehydration discharge through the clean sand that cyclone separator is discharged; Described centrifuge delivery port and profit storage tank UNICOM, the profit storage tank is by centrifugal pump and oil-water separation tank UNICOM, the sludge pump that install the oil-water separation tank bottom is connected with the press type filter, Oil scraper is installed on oil-water separation tank top, the oil-water separation tank oil pump connects petroleum pipeline, the oil-water separation tank water pump forms circulation UNICOM by heating furnace and heat-exchanger pump UNICOM; The clean husky outlet of described centrifuge mud mouth and dewater unit is connected belt conveyor and dosing mixer and forming and hardening machine UNICOM with belt conveyor.
Described cavitation air supporting three phase separator, tangentially leave greasy filth mortar inlet on cylindric tank body top, in tank interior the eddy flow guider is set, center, middle and lower part at cylindric tank body is provided with supersonic generator, in the bottom of cylindric tank body the pipeline that can spray water vapour downwards is set.
The invention has the beneficial effects as follows: the present invention has guaranteed not only that in the process of oily sediment purified treatment the silt that purified treatment is crossed can reach pollutant control criterion in the agricultural mud, pollutant load reaches the primary standard of national sewage comprehensive emission standard in the solidfied material leachate, and accomplished zero-emission substantially, the water that the enforcement purified treatment is used constantly carries out recycling.This system architecture advantages of simple, safe and reliable, its method implementation condition is easy to be loose, and the purified treatment flow process is simple, and the processing cycle is short, applied range.Can reach the harmless treatment of oily sediment, effectively solve the secondary pollution difficult problem in the oily sediment decontamination process, can reclaim oil product wherein again, realize the resource of crude oil in the oily sediment, silt after the purification is made the building materials solidfied material, reduce the wasting of resources, effectively reduce the cost of oily sediment purified treatment.
Description of drawings
Fig. 1 is the inventive method implementation step schematic flow sheet;
Fig. 2 is an entire system connection diagram of the present invention;
Among Fig. 2: 1 materials device mechanically, 2 foreign material remove and select machine, 3 heat-exchanger pumps, 4 grug feeding jars, 5 mud homogeneous preparers, 6 slush pumps, 7 cavitation air supporting three phase separators, 8 steam generators, 9 profit storage tanks, 10 slush pumps, 11 grug feeding jars, 12 cyclone separators, 13 gravity tanks, 14 centrifuges, 15 dewater units, 16 profit storage tanks, 17 centrifugal pumps, 18 oil-water separation tanks, 19 sludge pumps, 20 press type filters, 21 Oil scrapers, 22 oil-water separation tank water pumps, 23 heating furnaces, 24 belt conveyors, 25 dosing mixers, 26 forming and hardening machines, 27 eddy flow guiders, 28 supersonic generators, 29 pipelines, 30 oil pumps, 31 oil pumps.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to the specific embodiment provided by the invention, structure, details are as follows for feature:
As shown in Figure 1, a kind of pollution-free oil-containing sediment and purification processing method, with oily sediment deposit isolation of purified, implementation step is as follows:
(1) uses foreign material except that selecting machine to sort the foreign material that screen out in the oil sediment, the application machine feeding device is evenly sent oily sediment into foreign material, and perfusion hot water and fractionated polymer are from demulsifier in oil sediment simultaneously except that selecting machine, and described fractionated polymer can adopt one or more of medicaments such as DBSA, alkyl phenol polyoxydivinyl ether phosphate, petroleum sulfonate, NaOH, sodium phosphate trimer from demulsifier; The hot water temperature is 40～95 ℃, or adds delivering vapor, and its temperature is not less than 35 ℃ with the operating temperature of the terminal cyclone separator of assurance system and is as the criterion; Every cubic metre of oil sediment perfusion hot water amount is 1～7 ton, and it is 1～6 kilogram from the demulsifier pharmaceutical quantities that every cubic metre of oil sediment adds fractionated polymer;
(2) the oily sediment homogeneous is modulated; Adopt cal rolling to stir the effect of giving full play to the broken glue of medicament breakdown of emulsion;
(3) cavitation air supporting three phase separation; In tank body, oil, water, silt are carried out three phase separation;
(3.1) tangentially leave greasy filth mortar inlet on cylindric tank body top, and at the tank body internal upper part eddy flow guider is set, the greasy filth slurry is with the pressure of 0.1～0.4MPa, and per hour 5～40 cubic metres flow enters tank body, carries out rotational flow separation by the eddy flow guider;
(3.2) in the center, middle and lower part of cylindric tank body, the supersonic generator of installation power 1～8Kw, frequency 〉=20KHz carries out ultrasonic cavitation to the greasy filth mortar in the tank body and cleans;
(3.3) in the bottom of cylindric tank body, installation can spray the pipeline of water vapour downwards, the greasy filth mortar in the tank body is carried out dissolved air floatation handle;
(4) most of oil and low amounts of water are discharged from cavitation air supporting three phase separator tank body top, enter oil-water separation tank, mud, sand, deposit and most of water pump from cavitation air supporting three phase separator tank base, add the flocculant that contains 0.1%～0.2% polyacrylamide (PAM) simultaneously, every cubic metre of mud adds 0.5～4 kilogram;
(5) silt separates: cement mortar is with the pressure of 0.03～0.4MPa, and per hour 5～40 cubic metres flow enters cyclone separator, and moisture silt is separated;
(6) clean beach volleyball goes out, and is cured forming processes after the dehydration routinely;
(7) Separation of Solid and Liquid; Use centrifuge the water in the aqueous slurry is separated out with a small amount of oil, enter oil-water separation tank;
(8) simultaneously clean mud is discharged, and is cured forming processes routinely;
(9) the thin mud that enters the oil-water separation tank front and back is told thin mud with the press type filter.
As shown in Figure 2, this system comprises that each rotating device of electrical control mechanism and system is connected; This system is provided with mechanically materials device 1, and the corresponding foreign material that are provided with it remove and to select machine 2, as rotary screen bucket formula; Be provided with heat-exchanger pump 3 and grug feeding jar 4 and foreign material except that selecting machine 2 UNICOMs, foreign material remove discharging opening and cement mortar homogeneous preparer 5 UNICOMs that select machine 2, and mud homogeneous preparer 5 is by slush pump 6 and cavitation air supporting three phase separator 7 UNICOMs; Cavitation air supporting three phase separator 7 and steam generator 8 UNICOMs, the top outlet and profit storage tank 9 UNICOMs of cavitation air supporting three phase separator 7, profit storage tank 9 is by oil pump 30 and oil-water separation tank 18 UNICOMs, and the lower part outlet of cavitation air supporting three phase separator 7 is by slush pump 10 and grug feeding jar 11 and cyclone separator 12 UNICOMs; The top outlet of cyclone separator 12 is by gravity tank 13 and centrifuge 14 UNICOMs, and the lower part outlet correspondence of cyclone separator 12 is provided with dewater unit 15, sends into dewater unit 15 dehydrations through the clean sand of cyclone separator 12 discharges and discharges; Described centrifuge 14 delivery ports and profit storage tank 16 UNICOMs, profit storage tank 16 is by centrifugal pump 17 and oil-water separation tank 18 UNICOMs, the sludge pump 19 that install oil-water separation tank 18 bottoms is connected with press type filter 20, Oil scraper 21 is installed on oil-water separation tank 18 tops, oil-water separation tank 18 separates crude oil side installation oil pump 31 and is connected with petroleum pipeline, water pump 22 and heating furnace 23 and heat-exchanger pump 3 UNICOMs are installed in oil-water separation tank 18 middle parts, promptly form circulation UNICOM; Described centrifuge 14 mud mouths and dewater unit 15 clean husky outlets are connected belt conveyor 24 and dosing mixer 25 and forming and hardening machine 26 UNICOMs with belt conveyor 24.
Described cavitation air supporting three phase separator 7, tangentially leave greasy filth mortar inlet on cylindric tank body top, make eddy flow guider 27 in tank interior, supersonic generator 28 is installed in center, middle and lower part at cylindric tank body, in the bottom of cylindric tank body the pipeline 29 that can spray water vapour downwards is installed.
Practice and operation principle: mechanically materials device 1 evenly drops into foreign material except that selecting in the machine 2 with the greasy filth in the greasy filth pond, foreign material such as the weeds in the greasy filth, stone, plastics are isolated, and macromolecule medicament and hot water are injected greasy filth simultaneously by heat-exchanger pump 3 and grug feeding jar 4; The hot water temperature is 60～95 ℃, or delivering vapor, and its temperature is not less than 40 ℃ with the operating temperature of the terminal cyclone separator of assurance system and is as the criterion; Every cubic metre of oil sediment perfusion hot water amount is 1～7 ton, and it is 1～6 kilogram from the breakdown of emulsion pharmaceutical quantities that every cubic metre of oil sediment adds fractionated polymer.10 cubic metres of oil sediments for example, can pour into the hot water amount is 10～70 tons, adding fractionated polymer is 10～60 kilograms from the breakdown of emulsion pharmaceutical quantities;
Described fractionated polymer can adopt one or more of medicaments such as DBSA, alkyl phenol polyoxydivinyl ether phosphate, petroleum sulfonate, NaOH, sodium phosphate trimer from demulsifier; Greasy filth slurry behind adding medicament and the hot water is admitted in the mud homogeneous preparer 5, through after the rolling continuously and stir of roller, produce phase-splitting power and cut power, under bump, give full play to the effect of medicament breakdown of emulsion, separation, make the oil-proofness that is adsorbed on the sand grain surface obtain maximized destruction and separate.Mud after the modulation is imported in the cavitation air supporting three phase separator 7 by pipeline by slush pump 6; Wherein the lower central position is installed the power ultrasonic energy field that supersonic generator 28 causes and is utilized 1～24w/ square centimeter; the ultrasonic energy that frequency 20KHz is above; the micro-bubble that exists in the liquid is activated under the ultrasonic wave effect and shows vibration; expand; shrink; a series of dynamic processes such as collapse; the sound field concentration of energy is got up; follow air bubble to collapse moment; energy with its high concentration in the little space in liquid discharges; form thundering high temperature; high pressure; strong shock wave; the cavitation effect of extreme physical condition such as jet; thereby the oil that is attached on the sand grain is peeled off, and the colloid and the pitch particle of ageing smashed.Simultaneously the air supporting potential energy field is utilized the microbubble in the dissolved air water that the steam generator 8 of air dissolving system produces, and fitting together with suspension oil droplet in the water rises to liquid surface with bubble and form oil slick, makes profit obtain separating.The eddy flow guider 27 that while is provided with at cavitation air supporting three phase separator 7 tank body internal upper parts, make the greasy filth slurry with certain kinetic energy, promptly with the pressure of 0.1～0.4MPa, per hour 5～40 cubic metres flow is when tangentially entering tank body, in separator, form the eddy flow kinetic energy field of a liquid, profit sand grain in the greasy filth slurry is collided through mutual continuous high speed, cause tiny oil droplets to gather and float to the center, colloid, pitch are fully emulsified, and utilize the density variation of profit silt, the profit silt in the cavitation air supporting three phase separator 7 is well separated.By the flow of control slush pump 6 and slush pump 10, most of oil and low amounts of water are overflowed from cavitation air supporting three phase separator 7 tops, enter profit storage tank 9, enter oil-water separation tank 18 through oil pump 30.Be deposited on the mud and the water of cavitation air supporting three phase separator 7 bottoms, again through grug feeding jar 11 from the bottom of cavitation air supporting three phase separator 7 add contain the flocculant of 0.1%～0.2% PAMC (PAM) after, by slush pump 10 through the pressure of pipeline with 0.03～0.4MPa, 5～40 cubic metres flow per hour, tangential input column-shaped barrel from cyclone separator 12, the centrifugal force that the thick and heavy grains of sand are subjected in the strong cyclone field of cyclone separator 12 is big, thrown to the eddy flow wall and discharged to the bottom by the spiral trajectory backspin, after clean husky dewater unit 15 processing, be transported to the forming and hardening place; The centrifugal force that thin mud particle is subjected in thin and light is little, and being formed centrally in conical shell moves on the inside spin flow direction overflows, and makes most of liquid of thin mud in containing enter centrifuge 14 by gravity tank 13.In centrifuge 14 under the effect of centrifugal force field, the solid formation that proportion is bigger is deposited on the rotatory drum wall, under the effect of auger conveyor, rely on the difference rotating speed, mud after the dehydration after discharging, the small end mud mouth of circular cone rotary drum is delivered to the forming and hardening place, the oil of light specific gravity and water overflow from centrifuge 14 delivery ports through return duct, enter profit storage tank 16, enter oil-water separation tank 18 through centrifugal pump 17.The thin mud of oil-water separation tank 18 enters press type filter 20 under sludge pump 19 promotes, deliver to the forming and hardening place after thin mud is pressed into filter cake, and filtrate returning enters oil-water separation tank 18.After profits in the oil-water separation tank 18 utilized proportion separately different naturally sink-float is separated, the oil that the Oil scraper 21 by corresponding setting it on will float was scraped into oil sump, squeezes into the petroleum pipeline recycling through oil pump 31; And the water in the oil-water separation tank 18 after oil-water separation tank water pump 22 is squeezed into heating furnace 23 heating, is delivered to foreign material except that selecting machine 2 recycling by heat-exchanger pump 3 again.
After the clean husky dehydration that cyclone separator 12 is discharged, carry, after can stirring by 25 dosings of dosing mixer routinely, enter 26 moulding of forming and hardening machine again, be put into to solidify and hang the place and solidify and hang, make the higher construction material of intensity through belt conveyor 24; Mud is then made the lower slightly decoration construction material of intensity in the forming and hardening place by above-mentioned same process route.
The present invention not only makes discarded object be utilized effectively, and reduces the wasting of resources, greatly reduces the cost of oily sediment purified treatment simultaneously.This purifying treatment method and system are applicable to and handle the oily sediment that produces in the various oilfield processes.
Above-mentioned detailed description of this pollution-free oil-containing sediment and purification processing method and treatment system being carried out with reference to embodiment; be illustrative rather than determinate; therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.
Claims (3)
1. pollution-free oil-containing sediment and purification processing method with oily sediment deposit isolation of purified, is characterized in that implementation step is as follows:
(1) uses foreign material except that selecting machine to sort the foreign material that screen out in the oil sediment; The application machine feeding device is evenly sent into foreign material except that selecting machine to pour into hot water and fractionated polymer simultaneously from demulsifier in oil sediment with oily sediment, the hot water temperature is 40～95 ℃, or adding delivering vapor, its temperature is not less than 35 ℃ with the operating temperature of the terminal cyclone separator of assurance system and is as the criterion; Every cubic metre of oil sediment perfusion hot water amount is 1～7 ton, and it is 1～6 kilogram from the demulsifier pharmaceutical quantities that every cubic metre of oil sediment adds fractionated polymer;
(2) the oily sediment homogeneous is modulated; Adopt cal rolling to stir the effect of giving full play to the broken glue of medicament breakdown of emulsion;
(3) cavitation air supporting three phase separation; In tank body, oil, water, silt are carried out three phase separation;
(3.1) tangentially leave greasy filth mortar inlet on cylindric tank body top, and at the tank body internal upper part eddy flow guider is set, the greasy filth slurry is with the pressure of 0.1～0.4MPa, and per hour 5～40 cubic metres flow enters tank body, carries out rotational flow separation by the eddy flow guider;
(3.2) in the center, middle and lower part of cylindric tank body, the supersonic generator of installation power 1～8Kw, frequency 〉=20KHz carries out ultrasonic cavitation to the greasy filth mortar in the tank body and cleans;
(3.3) in the bottom of cylindric tank body, installation can spray the pipeline of water vapour downwards, the greasy filth mortar in the tank body is carried out dissolved air floatation handle;
(4) most of oil and low amounts of water are discharged from cavitation air supporting three phase separator tank body top, enter oil-water separation tank, mud, sand, deposit and most of water pump from cavitation air supporting three phase separator tank base, add the flocculant that contains 0.1%～0.2% polyacrylamide (PAM) simultaneously, every cubic metre of mud adds 0.5～4 kilogram;
(5) silt separates: cement mortar is with the pressure of 0.03～0.4MPa, and per hour 5～40 cubic metres flow enters cyclone separator, and moisture silt is separated;
(6) clean beach volleyball goes out, and is cured forming processes after the dehydration routinely;
(7) Separation of Solid and Liquid; Use centrifuge the water in the aqueous slurry is separated out with a small amount of oil, enter oil-water separation tank;
(8) simultaneously clean mud is discharged, and is cured forming processes routinely;
(9) the thin mud that enters the oil-water separation tank front and back is told thin mud with the press type filter.
2. the system of a pollution-free oil-containing sediment and purification processing method according to claim 1, it is characterized in that: this system is provided with mechanically materials device, the corresponding foreign material that are provided with it remove the machine that selects, be provided with heat-exchanger pump and grug feeding jar and foreign material except that selecting machine UNICOM, foreign material remove discharging opening and the mud homogeneous preparer UNICOM that selects machine, and mud homogeneous preparer is by slush pump and cavitation air supporting three phase separator UNICOM; Cavitation air supporting three phase separator and steam generator UNICOM, the top outlet and the profit storage tank UNICOM of cavitation air supporting three phase separator, the profit storage tank is by oil pump and oil-water separation tank UNICOM, and the lower part outlet of cavitation air supporting three phase separator is by slush pump and grug feeding jar and cyclone separator UNICOM; The top outlet of cyclone separator is by gravity tank and centrifuge UNICOM, and the lower part outlet correspondence of cyclone separator is provided with dewater unit, sends into dewater unit dehydration discharge through the clean sand that cyclone separator is discharged; Described centrifuge delivery port and profit storage tank UNICOM, the profit storage tank is by centrifugal pump and oil-water separation tank UNICOM, the sludge pump that install the oil-water separation tank bottom is connected with the press type filter, Oil scraper is installed on oil-water separation tank top, the oil-water separation tank oil pump connects petroleum pipeline, the oil-water separation tank water pump forms circulation UNICOM by heating furnace and heat-exchanger pump UNICOM; The clean husky outlet of described centrifuge mud mouth and dewater unit is connected belt conveyor and dosing mixer and forming and hardening machine UNICOM with belt conveyor.
3. pollution-free oil-containing sediment and purification treatment system according to claim 2, it is characterized in that: described cavitation air supporting three phase separator, tangentially leave greasy filth mortar inlet on cylindric tank body top, in tank interior the eddy flow guider is set, center, middle and lower part at cylindric tank body is provided with supersonic generator, in the bottom of cylindric tank body the pipeline that can spray water vapour downwards is set.
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