CN107235618A - Sludge in Oilfields recycling processing method and equipment - Google Patents
Sludge in Oilfields recycling processing method and equipment Download PDFInfo
- Publication number
- CN107235618A CN107235618A CN201710342392.3A CN201710342392A CN107235618A CN 107235618 A CN107235618 A CN 107235618A CN 201710342392 A CN201710342392 A CN 201710342392A CN 107235618 A CN107235618 A CN 107235618A
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- CN
- China
- Prior art keywords
- sludge
- oil
- water
- mud
- oily sludge
- Prior art date
- 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
- C02F11/12—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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
Abstract
The invention discloses a kind of Sludge in Oilfields recycling processing method and equipment.The processing method, including：Step (1), is diluted with water oily sludge and is starched into flowable oily sludge；Step (2), separates fuel-displaced, the oil that recovery is isolated, into de-oiling mud after oil-cut mud separation is fuel-displaced from oily sludge slurry；Step (3), de-oiling mud physico-chemical precipitation realizes clarification, and the water of clarification is used for the dilution oily sludge of step (1), realizes water circulation；Step (4), curing schedule (3) sediment is with recycling.It has the following advantages that：Oily sludge is diluted into mud, separates the oil in mud, physico-chemical precipitation clarification, the water circulation of clarification is used to dilute oily sludge, de-oiling sludge press filtration can reclaim crude oil, water circulation use into mud cake, institute's water requirement is seldom, therefore low energy consumption processing, non-secondary pollution, solvent-free addition, it is easy to operate, easily realize the purpose of auto-controll operation.
Description
Technical field
The present invention relates to a kind of Sludge in Oilfields recycling processing method and equipment.
Background technology
Oil field is difficult to avoid that in drilling well, recovery process can produce crude oil leakage and contaminated land, by the mud of crude oil pollution
Soil can not be abandoned directly, need to carry out after deoiling treatment this de-oiling sludge being carried out into recycling or be paved the way as well site or
Agricultural use.Existing methods and techniques have：Chemico-heating wash technology, turning sludge into fuel technology, pyrolytic technique, steam spraying technique, often
Warm solvent extraction technology, microorganism remediation technology.Prior art individual event is used, and wanting for disposal of oily sludge is all met in theory
Ask.But waste gas and waste liquid can be all produced, different degrees of output secondary pollution is that subsequent treatment hides some dangers for, and technical requirements height,
Equip complexity, with danger.Such as：Chemico-heating wash technology, turning sludge into fuel technology, pyrolytic technique, steam spraying technique, solvent extraction
Technology is taken all to produce secondary pollution and the after-treatments such as the leakage that exhaust and draining and solvent are distilled to recover to some extent；It is micro-
Bioremediation technology can only then degrade oil content it is relatively low contain sludge, and need to be carried out in temperature relatively low season at heating and heat preservation
Reason.All there is energy resource consumption in existing treatment technology, all need to handle secondary pollution, cause operating cost high, technical sophistication, assembling is thrown
Money is big, is all difficult to low expense and effectively handles oily sludge.
The content of the invention
The invention provides Sludge in Oilfields recycling processing method and equipment, which overcome oily in background technology
Deficiency present in field processing oily sludge.
The present invention solves one of technical scheme used of its technical problem：
Sludge in Oilfields recycling processing method, including：
Step (1), dilution step is diluted with water oily sludge and starched into flowable oily sludge；
Step (2), greasy filth separating step separates fuel-displaced, the oil that recovery is isolated, oil-cut mud point from oily sludge slurry
Separate out after oil into de-oiling mud；
Step (3), physico-chemical precipitation clarification steps, de-oiling mud physico-chemical precipitation realizes clarification, and the water of clarification is used for step (1)
Dilution oily sludge, realize water circulation；
Step (4), curing schedule, curing schedule (3) sediment is with recycling.
Among one embodiment：The greasy filth separating step includes：
Step (21), heating oily sludge slurry；
Step (22), the microbubble that the electric air floating device that oily sludge slurry is flowed into knockout tower, knockout tower is produced drives oil
Oily sludge slurry slurry face is risen to, the oil in slurry face is skimmed in the oil guide groove being located at around knockout tower upper shed to handle by microbubble
Reclaim.
Among one embodiment：In the dilution step, stirring oily sludge slurry.
Among one embodiment：The curing schedule includes：
Step (41), sludge condensation step, concentration step (3) sediment；
Step (42), sludge press filtration step, using the sediment after filter press filter press concentration into mud cake；
Step (43), recirculated water step, the press filtration that the upper water and step (42) press filtration that step (41) concentration is produced are produced
Water is all streamed to step (3).
What the present invention solved the technical scheme used of its technical problem two is：
Sludge in Oilfields recycling processing equipment, including：
Dilution device, including a cut-back tank, a connection cut-back tank are installed in the water feed apparatus and one for adding new water
The agitating device of cut-back tank, is starched for diluting oily sludge into flowable oily sludge；
Oil-sludge separation device, including knockout tower, oil recovery apparatus and electric air floating device, the oil recovery apparatus include Oil Guide
Groove, the oil guide groove is installed in around knockout tower upper shed, and the knockout tower is exported provided with separation import and separation, the electric air floating device
It is located in knockout tower so that microbubble can be produced, cut-back tank, the microbubble band that the electric air floating device is produced are connected in the separation import
Oil in dynamic oily sludge slurry rises to slurry face, and the oil in slurry face is skimmed in oil guide groove to handle recovery, oil-cut mud by microbubble
Into de-oiling mud after separation is fuel-displaced；
Physico-chemical precipitation clarifier, including Fining vessel, the Fining vessel connect separation import；
Water circle device, connects Fining vessel and cut-back tank, to dilute oily sludge with the water of clarification, realizes that water is followed
Ring；And
Solidification equipment, connection Fining vessel realizes recycling with the sediment for solidifying Fining vessel.
Among one embodiment：Also include：
Heater, including one be located between cut-back tank and knockout tower with convey oily sludge slurry transfer passage and one
Heated transportation passage with heat oily sludge slurry heater.
Among one embodiment：The solidification equipment is with including the sludge condensation of a connection Fining vessel and one connects sludge condensation
The sludge filter press on ground.
Among one embodiment：The physico-chemical precipitation clarifier also includes chemicals dosing plant, chemicals dosing plant connection Fining vessel
With can be toward addition at least one of flocculant and coagulant in Fining vessel.
Among one embodiment：The water circle device includes first circulation passage and second circulation passage, and the first circulation is led to
Fining vessel and cut-back tank are connected in road, and the second circulation passage connects solidification equipment and Fining vessel.
The technical program is compared with background technology, and it has the following advantages that：
Oily sludge is diluted into mud, the oil in mud is separated, and physico-chemical precipitation clarification, the water circulation of clarification contains for dilution
Greasy dirt, de-oiling sludge press filtration can reclaim crude oil into mud cake, and water circulation use, institute's water requirement is seldom, therefore at low energy consumption
Reason, non-secondary pollution, solvent-free addition is easy to operate, easily realizes the purpose of auto-controll operation.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of Sludge in Oilfields recycling processing equipment.
Embodiment
It refer to Fig. 1, Sludge in Oilfields recycling processing method, including：
Step (1), dilution step is diluted with water oily sludge and starched into flowable oily sludge, is sufficiently stirred for containing greasy dirt
Mud is to make it uniform smooth delivery of power to hypomere process.Wherein：Extension rate is generally 2 to 10 depending on slip consistency
Times, i.e., mass ratio is 2-10 times.
Step (2), greasy filth separating step separates fuel-displaced, the oil that recovery is isolated, oil-cut mud point from oily sludge slurry
Separate out after oil into de-oiling mud；Specifically include：Step (21), heating oily sludge slurry, mud is heated to 60-95 degree；Step
(22) microbubble that the electric air floating device that, oily sludge slurry is flowed into knockout tower, knockout tower is produced drives oil to rise to containing greasy dirt
Mud starches face, and the oil in slurry face is skimmed in the oil guide groove being located at around knockout tower upper shed to handle recovery, de-oiling mud by microbubble
Slurry is delivered to subsequent processing from separation tower bottom.
Step (3), physico-chemical precipitation clarification steps add at least one of flocculant and coagulant into de-oiling mud,
Its physico-chemical precipitation is set to realize clarification, the flocculant such as iron hydroxide；The water of clarification is used for the dilution oily sludge of step (1), real
Existing water circulation, one side using water wisely, it is to avoid the direct exhaust emission environment of water, on the other hand reduction heating power consumption, realize it is low into
This disposal of oily sludge.
Step (4), curing schedule, curing schedule (3) sediment is with recycling.Specifically include：Step (41), sludge
Concentration step, concentration step (3) sediment, such as sediment is sent to concentration basin, and sediment is divided into upper water and again after standing
Sediment, separates upper water and realizes concentration；Step (42), sludge press filtration step, using the precipitation after filter press filter press concentration
Thing is into mud cake with recycling；Step (43), recirculated water step, upper water and step (42) pressure that step (41) concentration is produced
The press filtration water that filter is produced all is streamed to step (3).
Sludge in Oilfields recycling processing equipment, including dilution device 10, oil-sludge separation device 20, physico-chemical precipitation
Clarifier 30, water circle device 40, solidification equipment 50, heater 60 and conveying mechanism 70.
The dilution device 10, including a cut-back tank, a connection cut-back tank are to add the water feed apparatus and a dress of new water
The agitating device of cut-back tank is connected on, is starched for diluting oily sludge into flowable oily sludge.
The oil-sludge separation device 20, including knockout tower, oil recovery apparatus and electric air floating device, the oil recovery apparatus include leading
Oil groove, the oil guide groove is installed in around knockout tower upper shed, and the knockout tower is provided with separation import and is located at dividing for separation tower bottom
Mouth is separated out, the electric air floating device is located in knockout tower can produce microbubble, cut-back tank, the electric floating are connected in the separation import
The microbubble that device is produced drives the oil in oily sludge slurry to rise to slurry face, the oil in slurry face by microbubble skim in oil guide groove with
Processing is reclaimed, into de-oiling mud after oil-cut mud separation is fuel-displaced.As needed, an oil-sludge separation device 20 can be set, also can root
According to needing to set multiple oil-sludge separation devices 20, oily sludge is set sequentially to be realized after those oil-sludge separation devices 20 thoroughly de-
Oil, enters Fining vessel after thorough de-oiling for de-oiling sludge.The electric air floating device, including the electrical generating means of microbubble and help
Floating gas microvesicle generators.
Among the present embodiment：The oil guide groove is as included a ring wall and one being fixed in around knockout tower tower body by ring wall periphery
The periphery wall that edge is upwardly extended, constitutes oil guide groove between knockout tower tower body, ring wall, the periphery wall, and periphery wall upper port is located at point
On the tower body upper port of tower.Water is pumped to next workshop section's (materialization by the moisture content that the oil of importing oil guide groove is taken out of by electric pump
Precipitate in clarifier) it is pending.The separation import can be the middle part for being located at knockout tower wall, or including inlet pipe, inlet pipe
In slurry in supreme down insertion knockout tower, under the slurry face for entering slurry of the infratubal port in tower.As needed, may be used also
Including ventilation unit, ventilation unit is located at separation column to accelerate gas to discharge.Wherein：Oil guide groove connects trapped fuel device, oil
Be located at into oil guide groove and flowing to outside equipment trapped fuel device (such as bucket, tank, groove, pipe).As needed, the separation tower bottom
Tapered sedimentation face is set, in order to precipitate, so that de-oiling mud enters subsequent processing.As needed, in addition to it is installed in point
From the 3rd agitating device of tower.
The physico-chemical precipitation clarifier 30, including Fining vessel and chemicals dosing plant, the Fining vessel connect separation import, should
The affixed Fining vessel of chemicals dosing plant is with energy toward addition at least one of flocculant and coagulant in Fining vessel, and the flocculant is such as
For iron hydroxide.As needed, in addition to one is located at the second agitating device in Fining vessel, pass through the second agitating device and realize
Stirring.
The solidification equipment 50, connection Fining vessel realizes recycling with the sediment for solidifying Fining vessel.The solidification
The sludge filter press of device with including the sludge condensation of a connection Fining vessel with a connection sludge condensation ground.Solidification equipment 50 is also
Including drying system, for drying mud cake.
The heater 60, including one be located between cut-back tank and knockout tower with convey oily sludge slurry transfer passage
With a heated transportation passage with heat oily sludge slurry heater.
The water circle device 40, connects Fining vessel and cut-back tank, to dilute oily sludge with the water of clarification, realizes water
Circulation；In concrete structure：The water circle device includes first circulation passage and second circulation passage, and the first circulation passage is connected
Fining vessel and cut-back tank, the first circulation passage set electric pump；The one second circulation passage connect sludge condensation and clarification
Container, another recovery approach connects sludge filter press and Fining vessel.
The conveying mechanism 70 is connected to before cut-back tank, and the mud conveying under vibratory sieve is located at comprising a vibratory sieve, one
Band, one connection vibratory sieve on debris guiding device, the used by oscillating screen in by debris such as the stones in oily sludge from mud
Remove and exported by debris guiding device, the mud that the vibratory sieve is fallen is delivered to laydown area or cut-back tank by conveyer belt.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still belong in the range of the present invention covers.
Claims (9)
1. Sludge in Oilfields recycling processing method, it is characterised in that：Including：
Step (1), dilution step is diluted with water oily sludge and starched into flowable oily sludge；
Step (2), greasy filth separating step separates fuel-displaced from oily sludge slurry, reclaims the oil isolated, oil-cut mud is isolated
Into de-oiling mud after oil；
Step (3), physico-chemical precipitation clarification steps, de-oiling mud physico-chemical precipitation realizes clarification, and the water of clarification is used for the dilute of step (1)
Oily sludge is released, water circulation is realized；
Step (4), curing schedule, curing schedule (3) sediment is with recycling.
2. Sludge in Oilfields recycling processing method according to claim 1, it is characterised in that：The greasy filth is separated
Step includes：
Step (21), heating oily sludge slurry；
Step (22), the microbubble that the electric air floating device that oily sludge slurry is flowed into knockout tower, knockout tower is produced drives oil to rise
To oily sludge slurry slurry face, the oil in slurry face is skimmed in the oil guide groove being located at around knockout tower upper shed to handle back by microbubble
Receive.
3. Sludge in Oilfields recycling processing method according to claim 1, it is characterised in that：The dilution step
In, stirring oily sludge slurry.
4. Sludge in Oilfields recycling processing method according to claim 1, it is characterised in that：The curing schedule
Including：
Step (41), sludge condensation step, concentration step (3) sediment；
Step (42), sludge press filtration step, using the sediment after filter press filter press concentration into mud cake；
Step (43), recirculated water step, the press filtration water that the upper water and step (42) press filtration that step (41) concentration is produced are produced is all
Stream to step (3).
5. Sludge in Oilfields recycling processing equipment, it is characterised in that：Including：
Dilution device, including a cut-back tank, a connection cut-back tank are installed in dilution with the water feed apparatus and one for adding new water
The agitating device of container, is starched for diluting oily sludge into flowable oily sludge；
Oil-sludge separation device, including knockout tower, oil recovery apparatus and electric air floating device, the oil recovery apparatus include oil guide groove, should
Oil guide groove is installed in around knockout tower upper shed, and the knockout tower is exported provided with separation import and separation, and the electric air floating device is located at
Can produce microbubble in knockout tower, cut-back tank is connected in the separation import, and the microbubble that the electric air floating device is produced, which drives, to be contained
Oil in oil flecked mud rises to slurry face, and the oil in slurry face is skimmed in oil guide groove to handle recovery, oil-cut mud separation by microbubble
Into de-oiling mud after fuel-displaced；
Physico-chemical precipitation clarifier, including Fining vessel, the Fining vessel connect separation import；
Water circle device, connects Fining vessel and cut-back tank, to dilute oily sludge with the water of clarification, realizes water circulation；And
Solidification equipment, connection Fining vessel realizes recycling with the sediment for solidifying Fining vessel.
6. Sludge in Oilfields recycling processing equipment according to claim 5, it is characterised in that：Also include：
Heater, including one be located between cut-back tank and knockout tower with convey oily sludge slurry transfer passage and a heating
Transfer passage with heat oily sludge slurry heater.
7. Sludge in Oilfields recycling processing equipment according to claim 5, it is characterised in that：The solidification equipment
Sludge filter press including a sludge condensation for connecting Fining vessel with a connection sludge condensation ground.
8. Sludge in Oilfields recycling processing equipment according to claim 5, it is characterised in that：The physico-chemical precipitation
Clarifier also includes chemicals dosing plant, and the chemicals dosing plant connects Fining vessel with can be toward addition flocculant and coagulation in Fining vessel
At least one of agent.
9. Sludge in Oilfields recycling processing equipment according to claim 5, it is characterised in that：The water circulation is filled
Put including first circulation passage and second circulation passage, the first circulation passage connects Fining vessel and cut-back tank, and this second
Circulation canal connects solidification equipment and Fining vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342392.3A CN107235618A (en) | 2017-05-16 | 2017-05-16 | Sludge in Oilfields recycling processing method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342392.3A CN107235618A (en) | 2017-05-16 | 2017-05-16 | Sludge in Oilfields recycling processing method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107235618A true CN107235618A (en) | 2017-10-10 |
Family
ID=59984926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710342392.3A Pending CN107235618A (en) | 2017-05-16 | 2017-05-16 | Sludge in Oilfields recycling processing method and equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN107235618A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721219A (en) * | 2019-01-16 | 2019-05-07 | 西安华盛坤泰能源环保科技有限公司 | The processing method and system of oil-base mud are discarded in a kind of drilling well |
| CN110590090A (en) * | 2019-09-24 | 2019-12-20 | 延安万创能源科技有限公司 | Dirty oil sludge treatment equipment and treatment process |
| CN110791347A (en) * | 2019-10-25 | 2020-02-14 | 新疆大学 | Fatlute and living beings blend processing system |
| CN111320344A (en) * | 2018-12-14 | 2020-06-23 | 杨延勇 | Method for treating mud layer in open-air waste oil pit |
| CN112080317A (en) * | 2020-09-23 | 2020-12-15 | 中海油能源发展股份有限公司 | Catalytic reducing agent for cleaning oily sludge and preparation method thereof |
| CN114702210A (en) * | 2022-03-14 | 2022-07-05 | 江苏济冠通环保科技股份有限公司 | Oil sludge treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320344A (en) * | 2018-12-14 | 2020-06-23 | 杨延勇 | Method for treating mud layer in open-air waste oil pit |
| CN109721219A (en) * | 2019-01-16 | 2019-05-07 | 西安华盛坤泰能源环保科技有限公司 | The processing method and system of oil-base mud are discarded in a kind of drilling well |
| CN110590090A (en) * | 2019-09-24 | 2019-12-20 | 延安万创能源科技有限公司 | Dirty oil sludge treatment equipment and treatment process |
| CN110791347A (en) * | 2019-10-25 | 2020-02-14 | 新疆大学 | Fatlute and living beings blend processing system |
| CN112080317A (en) * | 2020-09-23 | 2020-12-15 | 中海油能源发展股份有限公司 | Catalytic reducing agent for cleaning oily sludge and preparation method thereof |
| CN114702210A (en) * | 2022-03-14 | 2022-07-05 | 江苏济冠通环保科技股份有限公司 | Oil sludge treatment method |
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