CN107098552A - A kind of oily sludge takes off liquor treating process and processing unit - Google Patents
A kind of oily sludge takes off liquor treating process and processing unit Download PDFInfo
- Publication number
- CN107098552A CN107098552A CN201710326157.7A CN201710326157A CN107098552A CN 107098552 A CN107098552 A CN 107098552A CN 201710326157 A CN201710326157 A CN 201710326157A CN 107098552 A CN107098552 A CN 107098552A
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- China
- Prior art keywords
- oily sludge
- sludge
- treating process
- takes
- oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of oily sludge takes off liquor treating process and processing unit, is related to Sludge in Oilfields harmless treatment field.It is characterized in that：Certain density oxidant, acidulant, surfactant are sequentially added in oily sludge, after every kind of medicament is added, 3~7min is stirred, forms mixed material；After stirring, material is pumped to horizontal screw centrifuge through sludge pump, isolates part oil；Leftover materials enter in blender, are uniformly mixed with certain density dispersant and filter aid again；After mixing, material enters automatically cleaning drier through auger conveyor, is further separated through automatically cleaning drier, separates partially liq, forms the desiccation solid phase that liquid holdup is less than 40%；The part oil that horizontal screw centrifuge is separated and the liquid that automatically cleaning drier is separated, return to extraction liquid.The present invention solves the problems, such as the live desiccation and minimizing of oil field bottom of pond oily sludge, is easy to the transport of oily sludge and focuses on, and condition is provided for the thorough harmless treatment of oily sludge.
Description
Technical field
The present invention relates to oily sludge harmless treatment field, liquid processing work is taken off in particular to a kind of oily sludge
Skill and processing unit.
Background technology
A large amount of oily sludges can be produced in crude oil production process, wherein in addition to containing oil product, silt, water, containing sometimes
The organic matters such as substantial amounts of polymer, can also contain the poisonous of the difficult degradations such as pathogen, parasite, heavy metal, radioactive element has
Evil material, this to the mankind health and natural environment be all one greatly harm, be one of major pollutants of petroleum industry.
The processing of oily sludge is always a great problem for perplexing petrochemical enterprise, both at home and abroad conventional processing method bag
Include burning method, pyrolysismethod, biological treatment, hot washing method, solvent extraction, chemical demulsification method, solid-liquid isolation method, pyrogenic process,
Oily sludge profile control method, etc..Increasingly strict with environmental regulation, past processing mode and means of transportation all can not
Meet and require.In numerous sewage sludge harmlessness treatment technologies, pyrolysis processing technology is increasingly subject to people's attention, because it can be real
Thorough innoxious, the non-secondary pollution of existing sludge, is just gradually substituting and is burning the innoxious process for treating as organic sludge.
The cost of oily sludge pyrolysis processing is reduced, the predrainage technology of oily sludge turns into key.Natural air drying, into
This is low, but climate influence is big, and it is long to expend the time, lacks initiative, normally only suitable for weather more dry area, especially
Suitable for the drying and other treatment of desert area oily sludge.Oily sludge composition is extremely complex, and with geological conditions, production technology
It is relevant etc. factor, due to the reason such as wherein sand grain is very tiny, oil viscosity is big, polymer content is high, make oily sludge
Mechanical drying and other treatment become extremely difficult.
At present, solid-liquid separation mechanics is difficult to reach good de- liquid effect.Sedimentation-type centrifuge desiccation effect is undesirable, and
And higher is required to the mobility of sludge.There is serious clogging, 3-foot filtering in perforated wall centrifuge operating process
Centrifuge cleaning difficulty is smaller, but filter screen mesh number is mostly below 400 mesh；Horizontal helical type filtering centrifuge filter screen mesh number is not also high,
And clean difficult after filter net jam, dismantlement work amount is big.
The dispersiveness of complexity and its position based on oily sludge composition, it is difficult to enter by simple equipment to sludge
The thorough harmless treatment of row.Thoroughly to solve the pollution problem of oily sludge, it is necessary to the equipment of application system, sludge is collected
Middle processing.Therefore, transport for convenience of oily sludge and focus on, it is necessary to be carried out at the scene to oily sludge at quick desiccation
Reason, realizes the minimizing of sludge.
The content of the invention
The characteristics of it is an object of the invention to be distributed scattered for Oil Field oily sludge and oily sludge transport and
The requirement focused on takes off liquor treating process and processing unit there is provided a kind of oily sludge, with plant equipment and regulating agent phase
With reference to treatment technology realize the scene of oily sludge quickly de- liquid, reduce the volume of oily sludge, and realize oily sludge
Desiccation, is that the transport of oily sludge and focusing on creates conditions.
To reach above technical purpose, the present invention provides following technical scheme：
A kind of oily sludge takes off liquor treating process, it is characterised in that：Certain density oxidant, acidulant, surface are lived
Property agent sequentially add in oily sludge, after every kind of medicament is added, stir 3~7min, form mixed material；After stirring, thing
Material is pumped to horizontal screw centrifuge through sludge pump, isolates part oil；Leftover materials enter blender in, again with it is certain density
Dispersant and filter aid are uniformly mixed；After mixing, material enters automatically cleaning drier through auger conveyor, through automatically cleaning drier
Further separation, separates partially liq, forms desiccation solid phase；The part oil and automatically cleaning drier that horizontal screw centrifuge is separated are separated
Liquid, return extraction liquid.
Mixing speed after the medicament is added is 20~80rpm/min.
Relative to oily sludge, the consumption of the oxidant is 1.5~2.5kg/m3；The consumption of the acidulant is 1.6
~3.0kg/m3；The consumption of the surfactant is 0.15~0.45kg/m3；The consumption of the dispersant is 20~60kg/
m3；The consumption of the filter aid is 30~80kg/m3。
The processing unit of liquor treating process is taken off based on the oily sludge, it is characterised in that：Including stirred surge tank, sludge
Pump, horizontal screw centrifuge, blender, auger conveyor, automatically cleaning drier, stirred surge tank is through sludge pump and horizontal screw centrifuge
Charging aperture is connected, and the slag-drip opening of horizontal screw centrifuge is connected with blender, and blender connects through auger conveyor and automatically cleaning drier
Connect.
The present invention has the following advantages that：The handling process and processing unit provided is using mechanical separation equipment and regulation
The mode that medicament is combined, by pre- oil removing process, overcomes the difficult problem of oily sludge dehydration, forms desiccation solid phase and contain
Liquid rate is less than 40%, and whole system is simple and direct reliable, it is possible to achieve the live desiccation and minimizing of oil field bottom of pond oily sludge, is easy to
The transport of oily sludge and focus on.
Brief description of the drawings
Fig. 1 is to take off liquor treating process flow and processing unit composition schematic diagram according to oily sludge proposed by the invention.
Wherein：1 is stirred surge tank；2 be horizontal screw centrifuge；3 be blender；4 be auger conveyor；5 be that automatically cleaning is got rid of
Dry machine；6 be sludge pump；2.1 be horizontal screw centrifuge oil-out；2.2 be horizontal screw centrifuge charging aperture；2.3 be horizontal screw centrifuge row
Cinder notch.
Embodiment：
With reference to the accompanying drawings, an exemplary embodiments are further described：
As shown in figure 1, taking off the processing unit of liquor treating process based on the oily sludge, it is characterised in that：Including stirring
Surge tank 1, sludge pump 6, horizontal screw centrifuge 2, blender 3, auger conveyor 4, automatically cleaning drier 5, stirred surge tank 1 is through dirt
Dredge pump 6 is connected with horizontal screw centrifuge charging aperture 2.2, and horizontal screw centrifuge slag-drip opening 2.3 is connected with blender 3, and blender 3 is through spiral
Conveyer 4 is connected with automatically cleaning drier 5, and horizontal screw centrifuge oil-out 2.1 takes back closed tube.
Shengli Oil Field Produced Liquid sedimentation basin oily sludge liquid holdup is 90%, and containing multiple polymers, to stirred surge tank 1
In interior oily sludge, oxidant, acidulant, surfactant are sequentially added, oxidant uses the hydrogen peroxide of concentration 30%, phase
Consumption for oily sludge is 5L/m3, i.e., actual oxidant (oxydol H2O2) consumption be 1.7kg/m3；Acidulant is using dense
The dilute sulfuric acid of degree 20%, the consumption relative to oily sludge is 5L/m3, i.e., actual acidulant (sulfuric acid H2SO4) consumption be 1.8kg/
m3；Surfactant uses polyoxyethylene polyoxypropylene propylene glycol, and consumption is 0.225kg/m3；After every kind of medicament is added, stirring
5min, mixing speed is 30rpm/min.After stirring, mixed material is formed, is pumped by sludge pump 6 to horizontal screw centrifuge 2,
Material is entered by horizontal screw centrifuge charging aperture 2.2, is separated out part oil according to density differential by horizontal screw centrifuge 2, is isolated
Oil is discharged by horizontal screw centrifuge oil-out 2.1.Leftover materials enter in blender 3 through horizontal screw centrifuge slag-drip opening 2.3, again
With certain density dispersant and filter aid on-line mixing, dispersant use concentration 10% quick lime suspension, relative to containing
Greasy dirt consumption is 100L/m3, i.e., the consumption of actual dispersant (quick lime CaO) is 35kg/m3；Filter aid uses flyash, its
Bulk density is 700kg/m3, it is 49kg/m relative to oily sludge consumption3；After being mixed in blender 3, material is through spiral transferring
Send device 4 to enter automatically cleaning drier 5, further separated through automatically cleaning drier 5, separate partially liq, liquid includes big portion
Divide water and a small amount of oil, form desiccation solid phase.The part oil that horizontal screw centrifuge 2 is separated and the liquid that automatically cleaning drier 5 is separated,
Return to extraction liquid.
Formed desiccation solid phase liquid holdup is 38%, and oily sludge gross mass, which is reduced, reaches 83%, and reduction is obvious,
The quick desiccation in scene and minimizing of oil field bottom of pond oily sludge can be realized, is facilitated at transport and the concentration of oily sludge
Reason.
Claims (8)
1. a kind of oily sludge takes off liquor treating process, it is characterised in that：By certain density oxidant, acidulant, surface-active
Agent is sequentially added in oily sludge, after every kind of medicament is added, and stirs 3~7min, forms mixed material；After stirring, material
Pumped through sludge pump to horizontal screw centrifuge, isolate part oil；Leftover materials enter in blender, again with certain density point
Powder and filter aid are uniformly mixed；After mixing, material enters automatically cleaning drier through auger conveyor, enters through automatically cleaning drier
One step is separated, and separates partially liq, forms desiccation solid phase；What the part oil and automatically cleaning drier that horizontal screw centrifuge is separated were separated
Liquid, returns to extraction liquid.
2. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The rotating speed of the stirring be 20~
80rpm/min。
3. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The oxidant is relative to oil-containing
Sludge consumption is 1.5~2.5kg/m3。
4. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The acidulant is relative to oil-containing
Sludge consumption is 1.6~3.0kg/m3。
5. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The surfactant relative to
Oily sludge consumption is 0.15~0.45kg/m3。
6. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The dispersant is relative to oil-containing
Sludge consumption is 20~60kg/m3。
7. oily sludge according to claim 1 takes off liquor treating process, it is characterised in that：The filter aid is relative to oil-containing
Sludge consumption is 30~80kg/m3。
8. application oily sludge as claimed in claim 1 takes off the processing unit of liquor treating process, it is characterised in that：It is slow including stirring
Tank, sludge pump, horizontal screw centrifuge, blender, auger conveyor, automatically cleaning drier are rushed, stirred surge tank is through sludge pump with crouching
The charging aperture connection of screw centrifuge, the slag-drip opening of horizontal screw centrifuge is connected with blender, and blender is through auger conveyor and from clearly
Clean drier connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326157.7A CN107098552A (en) | 2017-05-10 | 2017-05-10 | A kind of oily sludge takes off liquor treating process and processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326157.7A CN107098552A (en) | 2017-05-10 | 2017-05-10 | A kind of oily sludge takes off liquor treating process and processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107098552A true CN107098552A (en) | 2017-08-29 |
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ID=59668776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326157.7A Pending CN107098552A (en) | 2017-05-10 | 2017-05-10 | A kind of oily sludge takes off liquor treating process and processing unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789898A (en) * | 2017-11-06 | 2018-03-13 | 偃师然合生物材料有限公司 | A kind of water reducer of molecular screen primary powder |
| CN110683723A (en) * | 2019-10-30 | 2020-01-14 | 湖北大学 | Mass separating agent for rapid phase separation of multiphase bodies and preparation method thereof |
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| CN102276127A (en) * | 2010-06-10 | 2011-12-14 | 中国石油化工股份有限公司 | Method for separating oily sludge and sands |
| CN103121780A (en) * | 2013-03-13 | 2013-05-29 | 天津市朗敦环保科技有限公司 | Oil sludge treatment method |
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| CA2752423C (en) * | 2011-09-15 | 2014-07-15 | Suncor Energy Inc. | Oxidative remediation of oil sands derived aqueous streams |
| CN104817248A (en) * | 2015-04-23 | 2015-08-05 | 荣盛康洁(北京)生物环保科技有限公司 | 'cleaning-centrifuging' oil-sludge treatment process |
| CN105084687A (en) * | 2015-08-13 | 2015-11-25 | 中国海洋石油总公司 | Chemical comprehensive treatment method of fatlute containing polymers |
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2017
- 2017-05-10 CN CN201710326157.7A patent/CN107098552A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868931A (en) * | 2006-06-06 | 2006-11-29 | 史宝荣 | Technological method and equipment for separating and purifying oil-containing mud sand |
| CN101823824A (en) * | 2009-03-04 | 2010-09-08 | 中国石油天然气股份有限公司 | Process for treating oily sludge |
| CN102276127A (en) * | 2010-06-10 | 2011-12-14 | 中国石油化工股份有限公司 | Method for separating oily sludge and sands |
| CA2752423C (en) * | 2011-09-15 | 2014-07-15 | Suncor Energy Inc. | Oxidative remediation of oil sands derived aqueous streams |
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| CN103880260A (en) * | 2014-02-13 | 2014-06-25 | 陕西延长石油（集团）有限责任公司永坪炼油厂 | Conditioning process for oil-refining sludge with high viscosity and high oil content |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789898A (en) * | 2017-11-06 | 2018-03-13 | 偃师然合生物材料有限公司 | A kind of water reducer of molecular screen primary powder |
| CN110683723A (en) * | 2019-10-30 | 2020-01-14 | 湖北大学 | Mass separating agent for rapid phase separation of multiphase bodies and preparation method thereof |
| CN110683723B (en) * | 2019-10-30 | 2022-11-11 | 湖北大学 | Mass separating agent for rapid phase separation of multiphase bodies and preparation method thereof |
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Application publication date: 20170829 |