CN107445426A - A kind of oil sludge and sand recycling treatment system and technique - Google Patents
A kind of oil sludge and sand recycling treatment system and technique Download PDFInfo
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- CN107445426A CN107445426A CN201710687481.1A CN201710687481A CN107445426A CN 107445426 A CN107445426 A CN 107445426A CN 201710687481 A CN201710687481 A CN 201710687481A CN 107445426 A CN107445426 A CN 107445426A
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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
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- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of oil sludge and sand recycling treatment system, and it includes pretreatment unit, water-oil separating unit and is evaporated under reduced pressure unit, wherein, the pretreatment unit includes pretreatment tank and the agitating device being arranged in the pretreatment tank；Upper strata water outlet and lower floor's water outlet formed in the pretreatment tank have respectively entered water-oil separating unit and are evaporated under reduced pressure unit.The invention also discloses a kind of handling process of oil sludge and sand, its step includes：A, after oil sludge and sand mixes with water, it is mixed evenly at 50 DEG C 80 DEG C, then stands and cause mixed liquor layering；B, water-oil separating processing is carried out to upper liquid caused by stratification in step a, aqueous phase caused by separation is back in step a, and oil phase caused by separation reclaims；C, vacuum distillation processing is carried out to lower floor's dope caused by stratification in step a, handling caused decompression clout can reuse.The processing system and technique of the present invention can realize that the recycling of oil sludge and sand resource maximizes.
Description
Technical field
The present invention relates to a kind of processing system of oil sludge and sand and technique, more particularly, to a kind of oil field block station, multi-purpose station
Ageing oil, the recycling treatment system and technique of the oil sludge and sand such as tank bottom oil.
Background technology
Oil sludge and sand refers to greasy filth and oil-sand in crude oil, and it is mainly derived from oil field block station, the oil tank of multi-purpose station, sedimentation
Caused oil sludge and sand in the bed mud and oil extraction process of tank, Water Tank, oil interceptor etc., at present by national environmental protection
General bureau is included in " National Hazard waste register " HW08 danger solid wastes.For a long time, oil sludge and sand can not obtain effectively always
Utilizing, its a large amount of long-term stacking, which not only occupies, largely stacks area, moreover, the main component petroleum substance in oil sludge and sand,
Especially benzene, multiring aromatic hydrocarbon substance can cause seriously to pollute to air and soil environment, influence ecological environment.
At present, for the improvement to oil sludge and sand both at home and abroad, studying more has solvent extraction, coking facture, pyrolysis
The defects of medicament usage amount is big, cost is high, recovery difficult is big be present in analysis method etc., still, solvent extraction；Coking processing rule is first
Corresponding coking plant is first needed, and its petroleum coke product to high quality has an impact, and limits its further use；And
The problems such as equipment investment is big, technical requirements are high, thermal energy consumption is big be present in Thermal desorption rule.Therefore, needing exploitation one kind badly can be right
Crude oil in oil sludge and sand is effectively reclaimed, and realizes the system and technique of the recycling treatment of oil sludge and sand.
The content of the invention
Crude oil in oil sludge and sand can be carried out effectively it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
The oil sludge and sand recycling treatment system of recovery.In addition, another object of the present invention is to provide at a kind of recycling of oil sludge and sand
Science and engineering skill.
To achieve the above object, the present invention uses following technical scheme：
A kind of oil sludge and sand recycling treatment system, it includes pretreatment unit, water-oil separating unit and is evaporated under reduced pressure unit,
Wherein, the pretreatment unit includes pretreatment tank and the agitating device being arranged in the pretreatment tank；The pretreatment
Upper strata water outlet and lower floor's water outlet formed in tank have respectively entered the water-oil separating unit and are evaporated under reduced pressure in unit.
Preferably：The water-oil separating unit includes gas floatation separation device, eddy flow two-phase laminated flow device or water-oil separating
Device.
Preferably：Aqueous phase caused by the water-oil separating unit is returned in pretreatment unit, caused oil phase recovery.
Preferably：The heater for being evaporated under reduced pressure unit is rotary furnace or heating furnace, and pressure regulating equipment is true for machinery
Empty pump and/or steam jet ejector.
Preferably：The processing system also includes cooling tower and the spray assemblies being arranged in the cooling tower.
Preferably：Mixed vapour caused by the vacuum distillation unit distillation enters after cooling down tower cooler to profit point
From unit, clout caused by vacuum distillation can the raw material that is produced as tar sand of reuse.
Another object of the present invention is to provide a kind of recycling treatment process of oil sludge and sand, it includes following processing step
Suddenly：
A, after oil sludge and sand mixes with water, 30min- is mixed with 50-120r/min speed at 50 DEG C -80 DEG C
60min, then stand 30mim-100min and mixed liquor is layered；
B, water-oil separating processing is carried out to upper liquid caused by stratification in step a, aqueous phase caused by separation returns
Reused into step a, oil phase caused by separation reclaims；
C, vacuum distillation processing is carried out to lower floor's dope caused by stratification in step a, is handled more than caused decompression
Material can the raw material that is produced as tar sand of reuse.
Further：The processing step also includes：To in step c through vacuum distillation handle caused by cut carry out it is cold
But, and the condensate fraction after cooling is back in step b.
Further：In the step a, the mixed volume ratio of water and oil sludge and sand is 2-10:1.
Yet further：In the step c, the pressure that is evaporated under reduced pressure processing is 0.5kPa-2kPa, temperature is 360 DEG C-
390℃。
The beneficial effects of the present invention are, relative to existing oil sludge and sand treatment technology, the present invention by water-oil separating with
And the mode being evaporated under reduced pressure reclaims to the light oil in oil sludge and sand, not only energy consumption is low, and by the way of being evaporated under reduced pressure
It can effectively prevent that fractions are by high-temperature oxydation in crude oil, and the bitumen content in decompression clout can be purified, make it as pitch
Sand raw materials for production, and then realize that the recycling of oil sludge and sand resource maximizes.
Brief description of the drawings
Fig. 1 shows the structural representation of oil sludge and sand recycling treatment system of the present invention.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, oil sludge and sand recycling treatment system of the present invention, it includes pretreatment unit, water-oil separating
Unit and vacuum distillation unit, wherein, the pretreatment unit includes pretreatment tank, and is provided with and stirs in the pretreatment tank
Device is mixed, for example, mechanical stirring device etc., upper strata water outlet caused by the pretreatment unit enters water-oil separating unit, production
Raw lower floor's dope, which enters, to be evaporated under reduced pressure in unit.In the present invention, the water-oil separating unit include gas floatation separation device,
Eddy flow two-phase laminated flow device or oil water separator, wherein, water caused by the water-oil separating unit separation may return to pretreatment
Unit reuses, oily recoverable caused by separation.The vacuum distillation unit includes vacuum distillation equipment, wherein,
In the present invention, it is described be evaporated under reduced pressure unit the preferred rotary furnace of heater or heating furnace, the preferred natural gas of mode of heating, electricity or
Microwave heats, and pressure regulating equipment preferably uses oil-sealed rotary pump and/or steam jet ejector.Further, the oil sludge and sand recycling
Processing system also includes cooling tower, and the mixed vapour for distilling to obtain through being evaporated under reduced pressure unit is entered in cooling tower to be quenched through spray
After enter in water-oil separating unit and be further processed, obtained decompression clout can be used as tar sand raw materials for production.
Oil sludge and sand is handled using processing system as described above of the invention, its processing step includes：
A, oil sludge and sand is lifted into the pretreatment tank of pretreatment unit through pump and mixed with water, and at 50 DEG C -80 DEG C
After being well mixed with 50-120r/min mixing speed stirring 30min-60min to oil sludge and sand with water, 30min-100min is stood
So that the mixed liquor layering in pretreatment tank；
B, upper liquid caused by stratification (predominantly oil-water mixture) enters profit point in step a pretreatment tank
From water-oil separating is carried out in unit, aqueous phase caused by separation may return in step a pretreatment tank and be reused, separation
Caused oil phase can enter in oil recovery tank to be reclaimed；
C, the larger lower floor's dope of density caused by stratification in step a pretreatment tank (predominantly water, with reference to oil with
And the mixed liquor of silt particle) enter be evaporated under reduced pressure unit carry out vacuum distillation processing, through be evaporated under reduced pressure handle caused by decompression more than
Material can be used as tar sand raw materials for production.
Further, the processing step may also include：To in step c through vacuum distillation handle caused by cut spray
Leaching cooling, and condensate fraction after cooling may return in step b and carry out further water-oil separating processing；
In the step a, the volume ratio of water and oil sludge and sand is：2-10:1；
In the step c, the pressure for being evaporated under reduced pressure processing is 0.5kPa-2kPa, and temperature is 360 DEG C -390 DEG C.
Embodiment 1
The oil sludge and sand of certain oil field block station is handled using processing system of the invention as described above and technique, at it
Reason step process includes：A, oil sludge and sand is lifted into pretreatment tank through pump and mixed with water, wherein, the volume of water and oil sludge and sand
Than for 8:1, and after being well mixed at 70 DEG C with 70r/min mixing speed stirring 40min to oil sludge and sand with water, standing
60min to pre-process the mixed liquor layering in tank；B, upper strata oil-water mixture caused by being stood in step a enters profit point
From water-oil separating is carried out in unit, aqueous phase caused by separation may return in step a and be reused, oil phase caused by separation
It can enter in oil recovery tank to be reclaimed；C, the lower floor dope larger to density caused by stratification in step a in 1kPa,
Carry out vacuum distillation processing at 370 DEG C, and spraying cooling is carried out to cut caused by vacuum distillation processing, and after cooling cold
Solidifying cut, which may return in step b, carries out further water-oil separating processing；Through being evaporated under reduced pressure, decompression clout can caused by processing
As tar sand raw materials for production.Table 1 shows the processing data in embodiment 1：
The result of table 1
| Moisture content | Oil content | Rate containing silt particle | Remarks | |
| Before processing | 7.5% | 34% | 58.5% | - |
| After processing | 1.5% | 10.3% | 88.23% | - |
As can be known from the results of Table 1, after processing, moisture content and oil content in oil sludge and sand are all remarkably decreased, and silt particle contains
Amount significantly improves, and can carry out reuse as the raw material of tar sand.Silt particle wherein in residue is as the thin collection in asphalt
Material, it is configurable according to experiment addition coarse aggregate, fine aggregate, additive and asphalt stock etc. on the basis of this tar sand raw material
Into the asphalt for meeting requirement, so as to realize that the resource recycling of oil sludge and sand utilizes.
The present invention has carried out detailed explanation by preferred embodiment.However, by studying carefully above, to each
Apparent to the change of embodiment and increase and those of ordinary skill in the art.It is intended that it is all this
A little changes and increase fall in the protection domain of the claims in the present invention.
Term used herein is only that specific embodiment is illustrated, and is not intended to and limits the invention.
Unless otherwise defined, all terms (including technical term and scientific terminology) used herein with it is of the art
The understanding of those skilled in the art is identical.Must also it is clear that, except herein have clearly definition in addition to, it is generally fixed in such as dictionary
The term of justice should be construed in the linguistic context of this specification and correlation technique can have the consistent meaning, without what should be explained
Idealization or undue formalization.
Claims (10)
- A kind of 1. oil sludge and sand recycling treatment system, it is characterised in that：The processing system includes pretreatment unit, water-oil separating Unit and vacuum distillation unit, wherein, the pretreatment unit includes pretreatment tank and is arranged in the pretreatment tank Agitating device；Upper strata water outlet and lower floor's water outlet formed in the pretreatment tank have respectively entered the water-oil separating unit with And it is evaporated under reduced pressure in unit.
- 2. processing system according to claim 1, it is characterised in that：The water-oil separating unit fills including dissolved air flotation Put, eddy flow two-phase laminated flow device or oil water separator.
- 3. processing system according to claim 1, it is characterised in that：Aqueous phase caused by the water-oil separating unit returns to In pretreatment unit, caused oil phase recovery.
- 4. processing system according to claim 1, it is characterised in that：The heater for being evaporated under reduced pressure unit is revolution Stove or heating furnace, pressure regulating equipment are oil-sealed rotary pump and/or steam jet ejector.
- 5. according to the processing system described in any one in claim 1-4, it is characterised in that：The processing system also includes cold But tower and the spray assemblies being arranged in the cooling tower.
- 6. processing system according to claim 5, it is characterised in that：Mixing caused by the vacuum distillation unit distillation is steamed Vapour enters after cooling down tower cooler arrives water-oil separating unit, and clout can reuse caused by vacuum distillation.
- A kind of 7. recycling treatment process of oil sludge and sand, it is characterised in that：The technique includes following processing step：A, after oil sludge and sand mixes with water, 30min-60min is mixed with 50-120r/min speed at 50 DEG C -80 DEG C, with Standing 30mim-100min afterwards causes mixed liquor to be layered；B, water-oil separating processing is carried out to upper liquid caused by stratification in step a, aqueous phase caused by separation is back to step Reused in rapid a, oil phase caused by separation reclaims；C, vacuum distillation processing is carried out to lower floor's dope caused by stratification in step a, handling caused decompression clout can Reuse.
- 8. handling process according to claim 7, it is characterised in that：The processing step also includes：To in step c through subtracting Cut caused by pressure distillation processing is cooled down, and the condensate fraction after cooling is back in step b.
- 9. the handling process according to claim 7 or 8, it is characterised in that：In the step a, the mixing of water and oil sludge and sand Volume ratio is 2-10:1.
- 10. the handling process according to claim 7 or 8, it is characterised in that：In the step c, the pressure of processing is evaporated under reduced pressure Power is 0.5kPa-2kPa, and temperature is 360 DEG C -390 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687481.1A CN107445426A (en) | 2017-08-11 | 2017-08-11 | A kind of oil sludge and sand recycling treatment system and technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710687481.1A CN107445426A (en) | 2017-08-11 | 2017-08-11 | A kind of oil sludge and sand recycling treatment system and technique |
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| CN107445426A true CN107445426A (en) | 2017-12-08 |
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| CN201710687481.1A Pending CN107445426A (en) | 2017-08-11 | 2017-08-11 | A kind of oil sludge and sand recycling treatment system and technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218167A (en) * | 2018-04-13 | 2018-06-29 | 胜利油田胜兴集团有限责任公司 | A kind of novel greasy filth Separation process arrangements |
| CN111333283A (en) * | 2020-03-04 | 2020-06-26 | 中稀天马新材料科技股份有限公司 | Treatment method of recovered oil in neodymium iron boron waste oil mud |
| CN114685238A (en) * | 2020-12-25 | 2022-07-01 | 蓝星（北京）技术中心有限公司 | Process and device for continuously producing chloroprene |
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| SU1263270A1 (en) * | 1985-04-05 | 1986-10-15 | Череповецкий Ордена Ленина,Ордена Трудового Красного Знамени Металлургический Комбинат Им.50-Летия Ссср | Method of separating side products and waste in metallurgical industry |
| CN1178777A (en) * | 1997-10-16 | 1998-04-15 | 河南石油勘探局炼油厂 | Process for treating oil containing sludge |
| CN104692601A (en) * | 2015-02-12 | 2015-06-10 | 绿野工程私人有限公司 | Oil sludge and sand recycling method and system |
-
2017
- 2017-08-11 CN CN201710687481.1A patent/CN107445426A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1263270A1 (en) * | 1985-04-05 | 1986-10-15 | Череповецкий Ордена Ленина,Ордена Трудового Красного Знамени Металлургический Комбинат Им.50-Летия Ссср | Method of separating side products and waste in metallurgical industry |
| CN1178777A (en) * | 1997-10-16 | 1998-04-15 | 河南石油勘探局炼油厂 | Process for treating oil containing sludge |
| CN104692601A (en) * | 2015-02-12 | 2015-06-10 | 绿野工程私人有限公司 | Oil sludge and sand recycling method and system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218167A (en) * | 2018-04-13 | 2018-06-29 | 胜利油田胜兴集团有限责任公司 | A kind of novel greasy filth Separation process arrangements |
| CN108218167B (en) * | 2018-04-13 | 2024-04-26 | 胜利油田胜兴集团有限责任公司 | Oil sludge separation process equipment |
| CN111333283A (en) * | 2020-03-04 | 2020-06-26 | 中稀天马新材料科技股份有限公司 | Treatment method of recovered oil in neodymium iron boron waste oil mud |
| CN114685238A (en) * | 2020-12-25 | 2022-07-01 | 蓝星（北京）技术中心有限公司 | Process and device for continuously producing chloroprene |
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