CN104773880B - Sewage treatment technology and equipment for well drilling - Google Patents
Sewage treatment technology and equipment for well drilling Download PDFInfo
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- CN104773880B CN104773880B CN201510223499.7A CN201510223499A CN104773880B CN 104773880 B CN104773880 B CN 104773880B CN 201510223499 A CN201510223499 A CN 201510223499A CN 104773880 B CN104773880 B CN 104773880B
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Abstract
The invention discloses a sewage treatment technology and equipment for well drilling. The sewage treatment for well frilling reaches a first grade of the national standard of the sewage discharge. According to the sewage treatment technology for well drilling, oil-removing is conducted on the sewage for well-drilling firstly; then acid or alkali is added to adjust the PH value to 6 to 9; coagulant is added further, centrifugal sedimentation is conducted, and residual liquid generated in the centrifugal sedimentation process is discharged from a blow-off pipe respectively; precipitation separation and filtration are conducted further, finally the filtered sewage for well drilling is detected, qualified swage is discharged through a pure-water outlet, and unqualified sewage is discharged after sufficient oxidation and adsorption. According to the sewage treatment equipment for well drilling, adding of acid and alkali is conducted through a hydraulic jet device, stirring and mixing are conducted through a tubular mixer, centrifugal sedimentation is conducted through a cyclone separator, and sedimentation is conducted through a slant-tube sedimentation basin. The sewage treatment technology and equipment for well drilling have the advantages that continuous treatment on sewage for well drilling is realized, the simultaneous processing of drug adding, mixing, sedimentation, pure-water discharging and residual-liquid discharging is guaranteed, the treatment time is saved, and the treatment efficiency is improved.
Description
Technical field
The present invention relates to a kind of handling process of drilling waste water and processing equipment.
Background technology
In drilling process, drilling fluid leakage, well drilling detritus, leave after finishing drilling scrap drilling fluid, equipment rinses, cooling
A large amount of drilling waste waters with generations such as lubricating utensil and burst accidents.Drilling waste water complex chemical composition, the de- surely ratio one of chemistry
As sewage difficulty big, be a kind of stabilising system of colloid, and form with oil field stratum different, drilling fluid composition is different and have larger
Difference, physicochemical property also has bigger difference.Contain oily substance, clay, organic agent and inorganic salt etc. in drilling waste water, bore
Well sewage also has the high feature of pollutant load, and general float reaches more than 3000mg/l, petroleum substance be 100～
1000mg/l.
Contain substantial amounts of poisonous waste in drilling waste water, be such as unable to effective process, pile up through rainwater leaching for a long time
Permeate the ground, severe contamination will be caused to the soil of its periphery, vegetation, surface water and groundwater, heavy metal especially therein
And its compound, can with long term accumulation in water environment or biology, give people class work bring potentially hazardous.Particularly in drilling well and
Drilling well (pressure break the returns row) sewage producing in each operation of pressure break, has colourity high, concentration of suspension height, chemical analysis complexity
Feature, if not in addition effective process, it will environment is caused with serious pollution, drilling well is produced and produces huge pressure.
The Basic practice that drilling crew processes drilling well (pressure break returns row) sewage at present is:
1) solid phase and the impurity such as the silt particle that drilling waste water collected by cesspool, pressure break returns sewer, in sedimentation sewage, are built.
2), sewage such as is carried out flocculating, decolours the Chemical Pretreatment.
Drilling waste water after Chemical Pretreatment can neither qualified discharge, nor meet produce reuse requirement, therefore in advance
Drilling waste water after process typically need to carry out reinjection technology, and the potential danger making drilling cost and environmental pollution is risen by this.
Content of the invention
First technical problem to be solved by this invention is to provide a kind of sewage treatment technology for well drilling, at drilling waste water
Reason reaches national sewage comprehensive emission standard gb8978-96 primary standard.
The present invention solves above-mentioned technical problem and the technical scheme is that sewage treatment technology for well drilling, comprises the following steps:
A, oil removing is carried out to drilling waste water by degreasing unit；
B, the ph value of test drilling waste water, the ph value according to drilling waste water adds acid or alkali and mixes, and adjusts drilling waste water
Ph value to 6～9；
C, addition coagulant centrifugal sedimentation in drilling waste water, the slag liquid that centrifugal sedimentation produces is discharged by blow-off pipe；
D, drilling waste water enter sedimentation tank and are precipitated, and the slag liquid that sedimentation tank produces is discharged by blow-off pipe；
E, drilling waste water enter filtering ponds from sedimentation tank and are filtered；
F, the drilling waste water after filtering is detected, up to standard directly outer arrange, below standard through fully oxidized, absorption
Arrange outward more afterwards.
It is further, in described b step, acid or alkali to be added in drilling waste water by hydraulic jeting device.
Acid is sucked using water-jet or alkali achieves Automatic Dosing, acid or alkali and drilling waste water can be made to be held in relative steady
Fixed mixed proportion is it is ensured that fully the carrying out of subsequent step.Adding acid or during alkali, the ph value according to drilling waste water and inflow
Amount, the valve of acid or alkali is added in adjustment, by dosing pump during either automatically or manually acid liquid or alkali liquor are carried out to drilling waste water
With.
It is further, in described b step, to be mixed by tube mixer, described tube mixer includes connecting
The 1# tube mixer connecting and 2# tube mixer.
Using tube mixer, drilling waste water is mixed, first does not need separately to set power-equipment, decreases motor
And agitator；Second improves mixed effect, and tube mixer can carry out the mixing of full fluid, there is not agitation dead angle, realizes
It is thoroughly mixed；Three-tube type blender incorporation time is short, and mixing efficiency is high it is only necessary to several seconds, and avoid because
Mixing time is long to cause floccule body (being commonly called as alumen ustum) to crush, and leads to the problem that post precipitation effect difference and sedimentation time increase.
It is further that, in described step c, the device that centrifugal sedimentation uses is cyclone separator, described cyclone separator
At least two, and drilling waste water adds coagulant when arbitrary cyclone separator, adds and sucks sky while coagulant
Gas.
Cyclone separator one side plays the effect mixing further, on the other hand, using the effect of centrifugal force, makes completely
Oil suspensions-water-mud (solid particle, floccule body etc.) the three-phase initial gross separation being formed after reaction, mud gradually precipitates
And discharged by blow-off pipe.
Add and while coagulant, suck air, drilling waste water mixes generation air supporting, gas with air in cyclone separator
The floating many micro-bubbles being formed overflow from the top of cyclone separator, take away drilling waste water and add in medicament composition mixed liquor
The oil of light specific gravity and many small float.
Moreover, described cyclone separator includes the 1# cyclone separator of connection in sequential series, 2# cyclonic separation
Device, 3# cyclone separator and 4# cyclone separator, drilling waste water enters and adds coagulant during 1# cyclone separator, and drilling waste water enters
Enter addition polymeric treating agent during 3# cyclone separator.
It is further that in described Step d, sedimentation tank is tube settler, and described tube settler includes the 1# connecting
Tube settler and 2# tube settler, 2# tube settler outlet arranges triangular-notch weir, and drilling waste water first flows into 1# inclined tube and sinks
Shallow lake pond, then flow into 2# tube settler, described 1# tube settler is same flow precipitation pond, and 2# tube settler sinks for reverse flow
Shallow lake pond.
The drilling waste water flowing out from afterbody cyclone separator flows into tube settler and is precipitated, due to employing tiltedly
Pipe precipitates, and hydraulics are improved, and elaioleucite particle separation diameter reduces, thus significantly improving treatment effect.Drilling waste water first flows
Enter 1# tube settler, the drilling waste water after preliminary purification flows into 2# tube settler again.
1# tube settler is concurrent (sludge settling direction is identical with water (flow) direction) sedimentation tank, dirty to drilling well further
Water carries out three phase separation, so that the oil of light specific gravity and float is gathered in liquid level and separate from drilling waste water, and dirty
Mud is deposited in the bottom of tube settler because of swash plate effect.2# tube settler is reverse flow (sludge settling direction and current side
To on the contrary) sedimentation tank.The area of 2# tube settler is more than the area of 1# tube settler, and drilling waste water flows into 2# tube settling
Pond flows decrease, can improve separating effect, so that the process of drilling waste water is thoroughly changed further.
It is further, in described step e, filling cinder in filtering ponds.
It is further that, in described f step, below standard drilling waste water is sequentially through catalyst oxidation reactor, absorption dress
Postpone again outer row.
Drilling waste water after filtering is detected by detection means, reaches national composite wastewater discharge primary standard
Directly outer can arrange or carry out reuse；Not up to national composite wastewater discharges primary standard, is adjusted according to this testing result
Ozonator, carries out catalysis oxidation, more just can complete to arrange outside process directly through adsorbent equipment absorption or carry out reuse.
Specifically, the adsorbent in described adsorbent equipment is activated carbon.
Further, it is also possible to arrange detection means after adsorbent equipment, enter to through the drilling waste water after peroxidating, absorption
Row detection, reaches national the directly outer of composite wastewater discharge primary standard and arranges or carry out reuse, be unsatisfactory for national composite wastewater
The drilling waste water of discharge primary standard is back to catalyst oxidation reactor, carries out again aoxidizing, adsorbs.Because ozonator is
Set according to testing result after filtering ponds for the drilling waste water, so the detection means of setting is main after adsorbent equipment
For confirmatory detection.
The present invention also provides a kind of drilling wastewater treatment equipment, including Water Tank, degreasing unit, hydraulic jeting device, mixes
Attach together put, centrifugal sedimentation device, sedimentation tank, filtering ponds and waste residue pond, described Water Tank is connected with degreasing unit, degreasing unit and
Hydraulic jeting device is connected, and hydraulic jeting device is connected with mixing arrangement, and mixing arrangement is connected with centrifugal sedimentation device, and centrifugation is heavy
The water side of falling unit connects to sedimentation tank, and the water side setting triangular-notch weir of sedimentation tank simultaneously connects to filtering ponds, and centrifugal sedimentation fills
Put and connected to waste residue pond by blow-off pipe respectively with the outlet of the slag liquid of sedimentation tank.
It is further, described degreasing unit, hydraulic jeting device, mixing arrangement, centrifugal sedimentation device, sedimentation tank and mistake
All using overall skid-mounted formula structure, move in order to drilling team and install in filter tank.
It is further that described mixing arrangement is tube mixer, described tube mixer includes the 1# pipe being connected in series
Formula blender and 2# tube mixer.
Described centrifugal sedimentation device is cyclone separator, and cyclone separator includes 1# cyclone separator, the 2# being connected in series
It is respectively provided with cyclone separator, 3# cyclone separator and 4# cyclone separator, 1# cyclone separator and 3# cyclone separator and add
Medicine mouth, row is passed through in 1# cyclone separator, the slag liquid outlet of 2# cyclone separator, 3# cyclone separator and 4# cyclone separator respectively
Dirty pipe connects to waste residue pond.
Described sedimentation tank is tube settler, and tube settler includes 1# tube settler and the 2# tube settling connecting
Pond, triangular-notch weir is arranged at the outlet of 2# tube settler, and 1# tube settler is same flow precipitation pond, and 2# tube settler is
Reverse sedimentation tank, 1# tube settler and 2# tube settler the outlet of slag liquid connected to waste residue by blow-off pipe respectively
Pond.
Filling cinder in described filtering ponds.
Be further, the equipment of described sewage treatment technology for well drilling also include detection means, catalyst oxidation reactor and
Adsorbent equipment, described detection means is arranged at the downstream of filtering ponds, and detection means is connected with catalyst oxidation reactor, is catalyzed oxygen
Change reactor to be connected with adsorbent equipment, the outlet of adsorbent equipment is net outlet, catalyst oxidation reactor also with ozonator
It is connected.
Adsorbent in described adsorbent equipment is activated carbon.
The invention has the beneficial effects as follows:
1st, achieve the continuous processing to drilling waste water it is ensured that dosing, mixing, precipitate, go out clear water, dreg discharging liquid enters simultaneously
OK, saved process time.
2nd, three phase separation is accelerated using cyclone separator and tube settler, make water purification and discharge slag liquid after process
Ratio improves；On the other hand the sludge settling time is made to greatly shorten, thus shortening the process time of every cubic metre of drilling waste water,
Improve disposal ability, improve treatment effeciency.
3rd, drilling wastewater treatment equipment can be processed to float such as the oil of light specific gravity, it is possible to resolve float, clear water, slag
Liquid concentrates in a tank and is not readily separated, the problem that especially float is not readily separated.
4th, drilling wastewater treatment equipment passes through sewage pump by the feeding of the drilling waste water of Water Tank, adds acid or alkali liquor stirring
Mixing adopts tube mixer, need not the power-equipment such as motor and agitator.
5th, drilling wastewater treatment equipment adopts overall skid-mounted formula structure, is easy to drilling team's removal of home and installs.
Brief description
Fig. 1 is the structural representation of the drilling wastewater treatment equipment of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, sewage treatment technology for well drilling of the present invention, comprise the following steps:
A, drilling waste water is carried out oil removing by degreasing unit to drilling waste water.
For example degreasing unit is oil interceptor, is pumped into degreasing unit by sewage.Oil removing is carried out to drilling waste water, it is to avoid
Follow up device is polluted, the oil after oil removing is to recycle.
B, the ph value of test drilling waste water, the ph value according to drilling waste water adds soda acid agent and mixes, and adjusts drilling waste water
Ph value to 6～9.
Take drilling waste water to count by ph or reagent paper test test acid-base value, acid or alkali, stirring mixing are added according to ph value
Fully neutralize, record unit drilling waste water ph value reaches the amount that need to add during 6-9, for example, be preferably neutralized to acid or the alkali of ph=7
Addition, as add acid or alkali foundation.The addition of acid or alkali is implemented by hydraulic jeting device, according to drilling waste water
Ph value and influx, the valve of acid solution or alkali liquor is added in adjustment, by dosing pump either automatically or manually acid liquid or alkali liquor in
In hydraulic jeting device, drilling waste water is neutralized.
Drilling waste water, after hydraulic jeting device adds acid solution or alkali liquor, enters 1# tube mixer, enters back into 2#
Tube mixer is sufficiently mixed.
C, in drilling waste water, add coagulant centrifugal sedimentation, then add in drilling waste water polymeric treating agent and from
The heart settles, and adds coagulant to carry out centrifugal sedimentation and add polymeric treating agent (flocculant) to carry out centrifugal sedimentation, produced
Slag liquid is discharged by blow-off pipe respectively.
The outlet of 2# tube mixer connects 1# cyclone separator, 2# cyclonic separation in sequential series after 1# cyclone separator
Device, 3# cyclone separator and 4# cyclone separator, and drilling waste water enters addition coagulant during 1# cyclone separator, and drilling well is dirty
Water enters and adds polymeric treating agent during 3# cyclone separator, i.e. flocculant, and the slag liquid that each cyclone separator produces leads to respectively
Cross blow-off pipe and enter waste residue pond.
Coagulant is a class material, including organic, inorganic and high molecular, such as poly-aluminium, iron chloride, polymerised sulphur
Sour ferrum etc. can.The addition of coagulant and polymeric treating agent can determine according to following methods, by coagulant and macromolecule
Inorganic agent is each configured to 10% aqueous solution, is initially charged coagulant solution and stirs in the drilling waste water sample after neutralization,
Later add polymeric treating agent, low rate mixing within two minutes, observe sewage response situation, increased according to response situation or reduce medicine
The dosage of agent, draws coagulant and polymeric treating agent needed for unit drilling waste water with this, and as interpolation coagulant and height
The basis of molecule inorganic agent.
Add coagulant and polymeric treating agent respectively by dosing pump Automatic Dosing it is only necessary to respectively chemical feeding quantity is transferred to
Required numerical value.Dosing pump can manually or automatically operate, dosing pump under automatic operation mode, drilling waste water enter after, plus
Teat pipette operates automatically according to setting value.
Add coagulant to suck air, drilling waste water mixes generation air supporting with air in each cyclone separator simultaneously,
Many micro-bubbles that air supporting is formed overflow from the top of cyclone separator, take away drilling waste water and add medicament composition mixed liquor
The oil of middle light specific gravity and many small float.
D, drilling waste water enter tube settler and are precipitated, and the slag liquid that tube settler produces is discharged by blow-off pipe.
Tube settler includes 1# tube settler and the 2# tube settler connecting, and drilling waste water divides from above-mentioned 4# eddy flow
Enter 1# tube settler after device outflow, then the connection position entrance 2# in the middle part of 1# tube settler and 2# tube settler is oblique
Pipe sedimentation tank, 2# tube settler outlet arranges triangular-notch weir.Described 1# tube settler is same flow precipitation pond, and 2# inclined tube sinks
Shallow lake pond is reverse sedimentation tank.
E, drilling waste water enter filtering ponds from the triangular-notch weir of 2# tube settler and are filtered.
Filling cinder or other filtering agent in described filtering ponds.Drilling waste water water after filtering ponds filtration treatment
Matter typically can reach national sewage comprehensive emission standard gb8978-96 primary standard, can directly carry out reuse or directly outer
Row.In order to ensure process after drilling waste water water quality meet national sewage comprehensive emission standard gb8978-96 primary standard, also will
Carry out the detection of next step.
F, the drilling waste water after filtering is detected, up to standard directly outer arrange, below standard through fully oxidized, absorption
Arrange outward more afterwards.
Drilling waste water through filtration treatment is detected, reaches national sewage comprehensive emission standard gb8978-96 mono-
The directly exclusive or reuse of level standard, the carrying out for reaching national sewage comprehensive emission standard gb8978-96 primary standard aoxidize,
After absorption, exclusive again or reuse after detection is up to standard.
Below standard drilling waste water is arranged sequentially through outer again after catalyst oxidation reactor, adsorbent equipment, described catalytic reaction
Device is connected with ozonator.Not up to national composite wastewater discharges primary standard, adjusts ozone according to this testing result and sends out
Raw device, ozonator is connected with catalyst oxidation reactor, drilling waste water is carried out fully oxidized by catalyst oxidation reactor,
Through adsorbent equipment absorption, then detected through detection means, reach national composite wastewater and discharge the directly outer of primary standard
Arrange or carry out reuse, the drilling waste water being unsatisfactory for national composite wastewater discharge primary standard is back to catalyst oxidation reactor,
Carry out again aoxidizing, adsorb.Adsorbent in adsorbent equipment is activated carbon.
Because ozonator is that the testing result after filtering ponds sets according to drilling waste water, so absorption dress
Put the detection means arranging afterwards and be mainly confirmatory detection.
As shown in figure 1, the present invention also provides a kind of equipment realizing above-mentioned sewage treatment technology for well drilling.Drilling wastewater treatment
Equipment, including Water Tank, degreasing unit, hydraulic jeting device, mixing arrangement, centrifugal sedimentation device, sedimentation tank, filtering ponds and useless
Slag bath, described Water Tank is connected with degreasing unit, and degreasing unit is connected with hydraulic jeting device, hydraulic jeting device with mix dress
Put connected, mixing arrangement is connected with centrifugal sedimentation device, the water side of centrifugal sedimentation device connects to sedimentation tank, the going out of sedimentation tank
Water end (W.E.) setting triangular-notch weir simultaneously connects to filtering ponds, and the slag liquid outlet of centrifugal sedimentation device and sedimentation tank is connected by blow-off pipe respectively
To waste residue pond.
Described mixing arrangement is tube mixer, tube mixer at least, and for example described tube mixer is string
1# tube mixer and 2# tube mixer that connection connects.
Described centrifugal sedimentation device is cyclone separator, cyclone separator at least two, and each cyclone separator is connected
Connect, coagulant and polymeric treating agent dosing mouth, coagulant dosing mouth position are respectively provided with wherein on two cyclone separators
Upstream side in polymeric treating agent dosing mouth.Such as cyclone separator is the 1# cyclone separator that is connected in series, 2# eddy flow divides
From device, 3# cyclone separator and 4# cyclone separator, 1# cyclone separator arranges coagulant dosing mouth, on 3# cyclone separator
Setting polymeric treating agent dosing mouth, 1# cyclone separator, 2# cyclone separator, 3# cyclone separator and 4# cyclone separator
The outlet of slag liquid is connected to waste residue pond by blow-off pipe respectively.
Described sedimentation tank is tube settler, and tube settler includes 1# tube settler and the 2# tube settling connecting
Pond, triangular-notch weir is arranged at the outlet of 2# tube settler, and 1# tube settler is same flow precipitation pond, and 2# tube settler is
Reverse sedimentation tank, 1# tube settler and 2# tube settler the outlet of slag liquid connected to waste residue by blow-off pipe respectively
Pond.
The blow-off pipe of each cyclone separator above-mentioned and the blow-off pipe of each tube settler individually enter waste residue pond,
Waste residue pond is entered again after can converging.When each tube settler water is as deep as 2/3, open sewage draining valve, according to drilling waste water
Color adjustment valve size, when drilling waste water color is thin out, close minor valve.
Drilling waste water in 2# tube settler enters filtering ponds after triangular-notch weir collects, and filling in filtering ponds is filtered
Agent, for example, cinder.Clear water after being processed by cinder filtration fully achieves the outer draining discharge standard of national regulation, permissible
Carry out reuse or directly arrange outward.
For the ease of the dismounting of drilling wastewater treatment equipment, installation, described degreasing unit, hydraulic jeting device, tubular type are mixed
Clutch, cyclone separator, tube settler and and filtering ponds all preferably employ overall skid-mounted formula structure.
Drilling waste water in order to ensure to filter through filtering ponds meets the outer draining discharge standard of national regulation, drilling waste water
Processing equipment, equipment also includes detection means, catalyst oxidation reactor and adsorbent equipment, and described detection means is arranged at filtering ponds
Downstream, detection means is connected with catalyst oxidation reactor, and catalyst oxidation reactor is connected with adsorbent equipment, adsorbent equipment
Export as net outlet, catalyst oxidation reactor is also connected with ozonator.Detect below standard drilling waste water sequentially through
Arrange outward again after catalyst oxidation reactor, adsorbent equipment, ozonator is adjusted according to this testing result, dirty to below standard drilling well
Water carries out fully oxidized, through adsorbent equipment absorption, you can completes to process, reaches the outer draining discharge standard of national regulation.
In addition the downstream of described adsorbent equipment arranges detection means, reaches national composite wastewater and discharges the straight of primary standard
Meet outer row or carry out reuse, the drilling waste water being unsatisfactory for national composite wastewater discharge primary standard is back to catalytic oxidation
Device, carries out again aoxidizing, adsorbs.Adsorbent in adsorbent equipment is activated carbon.
Selective use can be carried out according to the height of its salinity through the water purification of above-mentioned process, high salinity water purification can be used for
It is back to drilling well, Low-salinity water purification can be used for greening vegetation etc. after salt manufacturing.
Claims (9)
1. sewage treatment technology for well drilling is it is characterised in that comprise the following steps:
A, oil removing is carried out to drilling waste water by degreasing unit；
B, the ph value of test drilling waste water, the ph value according to drilling waste water adds acid or alkali and mixes, and adjusts the ph of drilling waste water
It is worth to 6～9；
C, in drilling waste water, add coagulant centrifugal sedimentation is carried out by cyclone separator, described cyclone separator includes suitable
The secondary 1# cyclone separator being connected in series, 2# cyclone separator, 3# cyclone separator and 4# cyclone separator, drilling waste water enters
Add coagulant during 1# cyclone separator, add and while coagulant, suck air, when drilling waste water enters 3# cyclone separator
Add polymeric treating agent, the slag liquid that centrifugal sedimentation produces is discharged by blow-off pipe；
D, drilling waste water enter sedimentation tank and are precipitated, and the slag liquid that sedimentation tank produces is discharged by blow-off pipe；
E, drilling waste water enter filtering ponds from sedimentation tank and are filtered；
F, the drilling waste water after filtering is detected, up to standard directly outer arrange, below standard after fully oxidized, absorption
Outer row again.
2. sewage treatment technology for well drilling as claimed in claim 1 it is characterised in that: in described b step, filled by water-jet
Put and add acid or alkali in drilling waste water.
3. sewage treatment technology for well drilling as claimed in claim 1 it is characterised in that: in described b step, by tube mixer
Mixed, described tube mixer includes the 1# tube mixer being connected in series and 2# tube mixer.
4. sewage treatment technology for well drilling as claimed in claim 1 it is characterised in that: in described Step d, sedimentation tank for inclined tube sink
Shallow lake pond, described tube settler includes 1# tube settler and the 2# tube settler connecting, and 2# tube settler outlet sets
Put triangular-notch weir, drilling waste water first flows into 1# tube settler, then flow into 2# tube settler, described 1# tube settler is in the same direction
Sedimentation tank, 2# tube settler is reverse sedimentation tank.
5. sewage treatment technology for well drilling as claimed in claim 1 it is characterised in that: in described f step, below standard drilling well is dirty
Water is arranged sequentially through outer again after catalyst oxidation reactor, adsorbent equipment.
6. drilling wastewater treatment equipment it is characterised in that: include Water Tank, degreasing unit, hydraulic jeting device, mixing arrangement,
Centrifugal sedimentation device, sedimentation tank, filtering ponds and waste residue pond, described Water Tank is connected with degreasing unit, and degreasing unit and waterpower are sprayed
Injection device is connected, and hydraulic jeting device is connected with mixing arrangement, and mixing arrangement is connected with centrifugal sedimentation device, centrifugal sedimentation device
Water side connect to sedimentation tank, the water side setting triangular-notch weir of sedimentation tank simultaneously connects to filtering ponds, centrifugal sedimentation device and heavy
The slag liquid outlet in shallow lake pond is connected to waste residue pond by blow-off pipe respectively；
Described centrifugal sedimentation device is cyclone separator, and cyclone separator includes 1# cyclone separator, the 2# eddy flow being connected in series
It is respectively provided with dosing mouth on separator, 3# cyclone separator and 4# cyclone separator, 1# cyclone separator and 3# cyclone separator,
Blow-off pipe is passed through in 1# cyclone separator, the slag liquid outlet of 2# cyclone separator, 3# cyclone separator and 4# cyclone separator respectively
Connect to waste residue pond.
7. drilling wastewater treatment equipment as claimed in claim 6 it is characterised in that: described degreasing unit, hydraulic jeting device,
Mixing arrangement, centrifugal sedimentation device, sedimentation tank and filtering ponds are all using overall skid-mounted formula structure.
8. drilling wastewater treatment equipment as claimed in claim 6 it is characterised in that:
Described mixing arrangement is tube mixer, and described tube mixer includes the 1# tube mixer being connected in series and 2# tubular type
Blender；
Described sedimentation tank be tube settler, tube settler include connect 1# tube settler and 2# tube settler, three
Angle weir is arranged at the outlet of 2# tube settler, and 1# tube settler is same flow precipitation pond, and 2# tube settler is reverse
Sedimentation tank, 1# tube settler and 2# tube settler slag liquid outlet connected to waste residue pond by blow-off pipe respectively.
9. drilling wastewater treatment equipment as claimed in claim 6 it is characterised in that: the equipment of described sewage treatment technology for well drilling
Also include detection means, catalyst oxidation reactor and adsorbent equipment, described detection means is arranged at the downstream of filtering ponds, detection
Device is connected with catalyst oxidation reactor, and catalyst oxidation reactor is connected with adsorbent equipment, and the outlet of adsorbent equipment is net discharge
Mouthful, catalyst oxidation reactor is also connected with ozonator.
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| CN201510223499.7A CN104773880B (en) | 2015-05-05 | 2015-05-05 | Sewage treatment technology and equipment for well drilling |
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| CN201510223499.7A CN104773880B (en) | 2015-05-05 | 2015-05-05 | Sewage treatment technology and equipment for well drilling |
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| CN104773880B true CN104773880B (en) | 2017-01-25 |
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| CN108585278A (en) * | 2018-05-16 | 2018-09-28 | 延安双丰石油技术股份有限公司 | A kind of waste liquid of drilling processing system |
| CN111826138B (en) * | 2019-04-15 | 2022-06-03 | 中国石油天然气股份有限公司 | Drilling fluid preparation method |
| CN110723837A (en) * | 2019-09-09 | 2020-01-24 | 多路发环境净化技术(福建)有限公司 | Zero release sewage treatment system |
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| CN102949866B (en) * | 2011-08-31 | 2014-12-10 | 中国石油化工股份有限公司 | Oil removal method for petrochemical emulsified process water |
| CN102923878B (en) * | 2012-10-23 | 2014-01-01 | 西安建筑科技大学 | Equipment and process for modular treatment of oil field wastewater |
| CN103112967B (en) * | 2013-02-28 | 2014-07-16 | 孟兵川 | Oilfield sewage cyclone disturbance treatment method and device |
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2015
- 2015-05-05 CN CN201510223499.7A patent/CN104773880B/en active Active
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