CN209065558U - A kind of settling tank with microbubble cyclone air-flotation - Google Patents
A kind of settling tank with microbubble cyclone air-flotation Download PDFInfo
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- CN209065558U CN209065558U CN201821346373.4U CN201821346373U CN209065558U CN 209065558 U CN209065558 U CN 209065558U CN 201821346373 U CN201821346373 U CN 201821346373U CN 209065558 U CN209065558 U CN 209065558U
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Abstract
The utility model discloses a kind of settling tank with microbubble cyclone air-flotation comprising tank body, cylinder, eddy flow hybrid separation water feed apparatus, micro bubble generation device.Increase in existing settling tank or cyclone air-flotation facility is arranged in newly-built settling tank, injector is crushed using gas-liquid mixing pump or gas, generate mixing wastewater with air liquid, and air pocket is screened out through air pocket separator, the dissolved air water rich in microbubble is made, it is divided into multichannel and mixes release with oily wastewater in settling tank incoming flow oily wastewater and settling tank, the rotation plug-flow formed using the tangential water inlet pipe of cylinder and dissolved air water injection pipe, integral cyclone effect is generated, the separative efficiency for more effectively improving oil field extracted water is conducive to.
Description
Technical field
The utility model relates to Treatment Techniques of Extracted Water from Crude Oil Production field more particularly to a kind of oil field produced water treatment systems
Settle grease removal treatment device, and in particular to a kind of settling tank with microbubble cyclone air-flotation.
Background technique
Old filed has entered high water cut viscous heavy crude oil, is constant rate of production, and development scheme mostly uses alkali drive, microemulsion drive, is poly-
The modes such as object drive, combination flooding are closed, produces and largely contains polymer in oily wastewater, the separation of existing gravity type settling tank is caused to imitate
Fruit is deteriorated, treatment effeciency reduces, and increases the processing load of fillter section, existing processing system be discharged probability not up to standard significantly on
It rises.
From the angle analysis of physical method, using pneumatically supported method, increases mutually interpolymerized and ability between particle, increases particle
Buoyance lift rate improves separating effect；The chemically angle analysis of method, should add chemical agent keeps particle de- steady, increases mutual
Gather and at the ability of bulky grain, raising oil, water, mud separating rate.Because settling tank area, volume are big, similar technique is adopted at present
Dissolved air water is passed through into tank, in the hybrid mode of settling tank upper zone arrangement pipeline multiple spot release, which is difficult to
It obtains uniform dissolved air water and oil-containing water is mixed effect, and time of contact is short, loosely, it is heavy to will cause during release for adherency
The disturbance of Disengagement zone drops.This test, which is started with from settling tank increase microbubble cyclone air-flotation facility emphatically, to conduct a research.
Utility model content
Against the above technical problems, the purpose of this utility model is to provide a kind of sedimentations with microbubble cyclone air-flotation
Tank, i.e., increase cyclone air-flotation device on the basis of initial settlement tank, and the cyclone air-flotation settling tank is suitable for removal oil field and adopts
Oil-containing, the suspended solid of water outlet can more effectively improve oil field and adopt compared with existing settling tank and settling tank add air flotation technology
The separative efficiency of water outlet.
The utility model is implemented with the following technical solutions, a kind of settling tank with microbubble cyclone air-flotation comprising:
Water inlet manifold is arranged in tank body, tank body outside；
Cylinder, cylinder are erected in tank body；
Eddy flow hybrid separation water feed apparatus, including multichannel water inlet pipe and water pump；Water inlet manifold protrudes into and is divided outside tank body
For the multichannel water inlet pipe, every road water inlet pipe with a pre-determined tilt angle and tangentially protrudes into cylinder from cylinder lower sides
It is interior；The water pump forms eddy flow field using water inlet pipe to water inlet manifold pressurization in cylinder；
Micro bubble generation device, including gas-liquid mixing pump/reflux elevator pump, gas crush injector, air pocket separator；
On the one hand connection cylinder, another aspect are also connected to afloat gas air inlet pipe all the way, gas to gas-liquid mixing pump/reflux elevator pump input terminal
On the one hand input terminal that liquid mixing pump/reflux elevator pump output end crushes injector with gas is connected to, and on the other hand goes back atmosphere
Steep the input terminal connection of separator；Gas crushes injector and is connected to afloat gas air inlet pipe and input terminal separately is arranged, gas
Crush the input terminal of the output end connection air pocket separator of injector.
As a further improvement of the foregoing solution, cylinder is divided into phase up and down by setting partition with holes, partition in cylinder
Two logical regions, upper region are inhalant region, and lower region is exhalant region；Water inlet pipe supplies water to the inhalant region, gas-liquid mixed
Pump/reflux elevator pump draws water from the exhalant region.
Further, sludge pipe is arranged in the bottom of partition, and one end of sludge pipe passes through the exhalant region and is mounted on partition,
The other end of sludge pipe is led directly to outside tank body.
As a further improvement of the foregoing solution, the settling tank further includes liftable discharge equipment, the liftable row
Oily device includes:
Oil extraction cylinder, oil extraction cylinder are fixed in cylinder and coaxial with cylinder；
Fixed bracket, support bracket fastened both ends horizontal are fixed on the side wall of oil extraction cylinder；
Lifting regulating rod, one end of lifting regulating rod passes through the top of sedimentation tank and the other end is fixed on fixation vertically
On bracket；
Guide shell, one end of guide shell are socketed on the output end of oil extraction cylinder；
Oil exit pipe, one end of oil exit pipe are connected with the other end of guide shell, and the other end of oil exit pipe is led directly to outside tank body.
Further, oil extraction cylinder is in funnel shaped, and thick mouth is upward, thin mouth down.
Further, fixing sleeve is arranged in lifting regulating rod and support bracket fastened intersection.
Further, the liftable discharge equipment further include:
Handwheel is coaxially mounted on the other end of lifting regulating rod.
As a further improvement of the foregoing solution, release is installed on the pipeline of water inlet manifold.
As a further improvement of the foregoing solution, at least water distributor all the way is set on cylinder, multiple cloth are set on water distributor
The mouth of a river.
As a further improvement of the foregoing solution, the socket place setting sealing ring of guide shell and oil extraction cylinder is sealed.
A kind of settling tank with microbubble cyclone air-flotation of the utility model drives sedimentation in existing water drive, poly- drive, ternary
Increase in tank or cyclone air-flotation facility is arranged in newly-built settling tank, crushes injector using gas-liquid mixing pump or gas, generate gas
Water mixed liquid, and air pocket is screened out through air pocket separator, the dissolved air water rich in microbubble is made, is divided into multichannel and settling tank comes
Oily wastewater mixing release in oily wastewater and settling tank is flowed, and is tangentially intake using the cylinder along settling tank circumference special arrangement
The rotation plug-flow that pipe and dissolved air water injection pipe are formed, generates integral cyclone effect.In eddy flow field, micro-bubble be easier to it is tiny
Oil droplet, suspended matter contact adherency, form suspended matter-oil-gas aggregation, because aggregation density is less than water, and it is whole float it is floating
The water surface out forms oil slick slag, to be improved the petroleum-type of settling tank, suspended matter removal efficiency.The injection of dissolved air water multichannel, can
Make still containing a large amount of microbubbles in the oily wastewater separated by cyclone air-flotation, then is evenly distributed on settling tank via water distribution mouth and sinks
Disengagement zone is dropped, sedimentation separation efficiency is improved under stable fluidised form.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the settling tank with microbubble cyclone air-flotation of the utility model.
Fig. 2 is the structural schematic diagram of eddy flow hybrid separation water feed apparatus in the utility model Fig. 1.
Fig. 3 is the structural schematic diagram of micro bubble generation device in the utility model Fig. 1.
Fig. 4 is the structural schematic diagram of liftable discharge equipment in the utility model Fig. 1.
Symbol description
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with specific embodiment,
The present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this reality
With novel, it is not used to limit the utility model.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, the utility model provides a kind of settling tank with microbubble cyclone air-flotation, packet
Include tank body 1, cylinder 50, eddy flow hybrid separation water feed apparatus, micro bubble generation device 3, liftable discharge equipment etc..Settling tank
1 center of top of tank body can offer threaded hole.One end of water inlet manifold 4 is passed through oily wastewater, and the other end passes through the tank of settling tank
Body 1.The mountable release 49 on the pipeline of water inlet manifold 4, dissolved air water are uniformly distributed by release 49.
Cylinder 50 is vertically installed at 1 inside center of tank body.Setting partition 20 with holes in cylinder 50, partition 20 is by cylinder
50 are divided into two regions communicated up and down, and upper region is inhalant region, and lower region is exhalant region.Be equipped on partition 20 be connected into
Sludge pipe 28 outside pool and exhalant region and straight-through tank body 1, for depositing 50 water inlet portion bottom of cylinder because of cyclonic separation
The silt of generation is discharged.
Eddy flow hybrid separation water feed apparatus includes multichannel water inlet pipe 48 and water pump (not shown).Water inlet manifold 4 is from tank body
The multichannel water inlet pipe 48 is protruded into and is divided into outside 1, every road water inlet pipe 48 is from 50 lower sides of cylinder with a pre-determined tilt
It angle and tangentially protrudes into cylinder 50.The water pump forms rotation using water inlet pipe 48 to the pressurization of water inlet manifold 4 in cylinder 50
Flow field.
In the present embodiment, water inlet pipe 48 tangentially enters cylinder 50 with inclination angle alpha across 50 side wall of cylinder.Water inlet branch
Water inlet manifold 4 containing oily wastewater is divided into two-way or three tunnels (can also be cut directly into cylinder 50 all the way) by pipe 48, can be same
Direction incision can also circumferentially divide equally direction incision, form eddy flow field using water overbottom pressure, form rotation plug-flow effect.Multichannel
Dissolved air water injection pipe one end is connected to micro bubble generation device, passes through tank body 1, the dissolved air water that micro bubble generation device is generated
It is passed through in cylinder 50, is mixed with oily wastewater, the Oil -gas coagulant flowing of bubble package oil droplet and suspended matter composition emerges
To be separated.
Micro bubble generation device 3 be mounted on sedimentation tank 1 outside, micro bubble generation device 3 include gas-liquid mixing pump 34 (
Be also possible in other embodiments flow back elevator pump), gas crush injector 35, air pocket separator 36.Gas-liquid mixing pump 34
Input terminal on the one hand connection cylinder 50, be on the other hand also connected to afloat gas air inlet pipe 38 all the way, the output of gas-liquid mixing pump 34
On the one hand input terminal that end crushes injector 35 with gas is connected to, and on the other hand goes back the input terminal connection of air pocket separator 36.
Gas crushes injector 35 and is connected to afloat gas air inlet pipe 38 and input terminal separately is arranged, and gas crushes the output of injector 35
The input terminal of end connection air pocket separator 36.Water inlet pipe 48 supplies water to the inhalant region, and the reflux of gas-liquid mixing pump 34/ is promoted
Pump draws water from the exhalant region.
Gas-liquid mixing pump 34 is connected to the exhalant region of cylinder by return pipe 29 all the way, can also be in the exhalant region of cylinder 50
Outlet pipe 5 is set, then is connected to return pipe 29 with outlet pipe 5, the final exhalant region for realizing gas-liquid mixing pump 34 and cylinder 50 connects
It is logical.
Liftable discharge equipment includes: the oil extraction cylinder 19 for being fixed on the intracorporal funnel shaped of cylinder；The thick mouth court of oil extraction cylinder 19
On, thin mouth down；Both ends horizontal is fixed on the fixed bracket 47 of lifting regulating rod of 19 side wall of oil extraction cylinder；One end passes through settling tank
The threaded hole and the other end at 1 top of tank body are fixed on the lifting regulating rod 45 on the fixed bracket 47 of lifting regulating rod, lifting vertically
Adjusting rod 45 is threadedly coupled with the threaded hole, and one end of lifting regulating rod 45 is equipped with handwheel 15；One end cap is in oil extraction cylinder 19
The guide shell 43 at thin mouth end, guide shell 43 are slidably connected with oil extraction cylinder 19；One end is connected with 43 other end of guide shell, the other end
Oil exit pipe 27 outside straight-through sedimentation tank 1.
By rotating handwheel 15, lifting regulating rod 45 drives the opposite up and down motion of 19 opposite flow cylinder of oil extraction cylinder 43, thus
Oil droplet and suspended matter are contained into oil extraction cylinder 19, then settled outside tank 1 by guide shell 43 and the discharge of oil exit pipe 27.Lift adjustment
Fixing sleeve 46 is arranged in the intersection of bar 45 and fixed bracket 47, for sealing.Fixing sleeve 46 can be also used in lifting regulating rod 45 with
Other component intersection place.
A set of micro bubble generation device is increased newly on initial settlement tank base, from outlet pipe 5 or cylinder exhalant region return pipe
29 diversions screen principle and prepare microbubble dissolved air water, the dissolved air water of preparation by pump pressurization, gas-liquid mixed, crushing cutting, eddy flow
Sedimentation canister upper region is flowed to for separating aggregation by cylinder 50 again, realizes circulation air-flotation process.When the pump used is gas
When liquid mixing pump 34,34 import of gas-liquid mixing pump sucks recirculation water and afloat gas simultaneously, mixes in pump chamber, gas-liquid mixing pump 34
The mixing wastewater with air liquid of outlet is directly entered air pocket separator 36 and screens out air pocket.The atmosphere screened out is soaked can be soaked by atmosphere
Delivery pipe 42 introduces sedimentation 1 top discharge of tank, or introduces the contaminated-oil basin at scene.When the pump of use does not have gas-liquid mixed function
Can and when being only reflux elevator pump, the recirculation water of pressurization and the external afloat gas with pressure introduced pass through gas crushing injector 35
Mixing wastewater with air is carried out, the mixed liquor of formation reenters air pocket separator 36 and screens out air pocket, and microbubble dissolved air water is made by setting
Set the discharge of microbubble dissolved air water general pipeline 41 in 36 bottom of air pocket separator.
The dissolved air water of preparation can a point multichannel inject, 31 water inlet manifold 4 of the second dissolved air water injection pipe among water inlet pipe 48
Section can play the role of reducing oily wastewater viscosity after mixing with oily wastewater, be conducive to subsequent eddy flow mixing, centrifugation.The
Four dissolved air water injection pipes 33 are injected on water inlet manifold 4, using pipeline turbulent mixture or special release 49 in water inlet pipe
Middle release mixing, then mixed flow liquid tangentially enters cylinder 50, and contact adherency, oil droplet and suspended matter are carried out in the rotary fluid of formation
The Oil -gas coagulant flowing of composition emerges to be separated.At least water distributor 16 all the way, water distributor are set on cylinder 50
Multiple water distribution mouths 18 are set on 16, the first dissolved air water injection pipe 30 is injected tangentially at water distributor 16 in cylinder inhalant region,
Power-assisted rotating fluid again, and disperse goes out microbubble.Finer bubble can flow through multiple water distribution mouths 18 with waste water, in cylinder 50
Outer large area region comes out the adherend FLOTATION SEPARATION formed with fine droplets in oily wastewater, forms oil slick layer.It is true
Upper proof, finer, uniform particle sizes bubbles are less easily rupturable, can hold the oil droplet and suspended matter of emersion for more time, in this way
By water distribution mouth 18 outflow dispersion carryings more fine gas bubbles oily wastewater can steadily, be uniformly dispersed in settling tank top cylinder
50 with exterior domain.Due to having enough disengaging times in this region, it is possible to properly increase dissolved air water reflux ratio.It can also draw
Third dissolved air water injection pipe 32 tangentially enters cylinder 50 in inhalant region all the way, and boosting water inlet is mixed.
It has adhered to form Oil -gas coagulant in rotary fluid, it largely can be to the top area for floating up to 16 or more water distributor
Oil slick layer is formed, collected by the way that the discharge equipment inside cylinder 50 is arranged in and settling tank is discharged.Because there are waves for settling tank liquid level
Dynamic phenomenon, to ensure that the discharge equipment in cylinder 50 has optimal receipts oil height, which is designed as liftable knot by spy
Structure can go up and down oil extraction cylinder by being fixed in cylinder 50 and the lifting regulating rod 45 of tank deck above and below within a certain height
19, it is more advantageous to Oil -gas coagulant and enters oil extraction cylinder 19, then again by rotation handwheel 15, lifting regulating rod 45 is driven
The opposite up and down motion of 19 opposite flow cylinder of oil extraction cylinder 43, to containing oil droplet and suspended matter into oil extraction cylinder 19, then passes through guide shell
43 and oil exit pipe 27 discharge sedimentation tank 1 outside.
By designing above, cyclonic separation in cylinder 50 is mainly in, larger oil droplet separation, then main needle outside cylinder 50
Subtle oil droplet is separated.And mixing, contact adherency, the separation of cyclonic form can be such that adherency, separative efficiency improves, and be remarkably improved
The separating effect of settling tank at present.
In existing water drive, the poly- settling tank for driving, increasing or create in ternary drive settling tank, cyclone air-flotation facility, benefit are set
Injector 35 is crushed with gas-liquid mixing pump 34 or gas, generates mixing wastewater with air liquid, and screen out air pocket through air pocket separator 36,
The dissolved air water rich in 1~20um microbubble is made, is divided into oily wastewater in multichannel and settling tank incoming flow oily wastewater and settling tank
Mixing release, and utilize the water inlet pipe 48 and the first dissolved air water injection pipe 30, the second molten gas along settling tank circumference special arrangement
The rotation plug-flow that water injection pipe 31, third dissolved air water injection pipe 32 are formed, generates integral cyclone effect.It is small in eddy flow field
Bubble is easier to contact adherency with fine oil droplets, suspended matter, suspended matter-oil-gas aggregation is formed, because aggregation density is less than
Water, and whole float emerges, and oil slick slag is formed, to be improved the petroleum-type of settling tank, suspended matter removal efficiency.It is molten
The injection of air water multichannel can make still containing a large amount of microbubbles in the oily wastewater separated by cyclone air-flotation, then via water distribution mouth 18
It is evenly distributed on settling tank sedimentation separation area, sedimentation separation efficiency is improved under stable fluidised form.
Settling tank adds the cyclone air-flotation technology and undergoes technological transformation in combination with existing sedimentation jar structure, realization sedimentation,
The combination of air bearing function, had not only been utilized simple process, the residence time length, anti impulsion load of settling tank, but also improved
The separative efficiency of settling tank, can recycle more crude oil.It can be applied to oil gas field, the oil refining of sequence batch water inlet or continuum micromeehanics
In the settling tank of factory, oily wastewater basin operating condition.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of settling tank with microbubble cyclone air-flotation comprising:
Water inlet manifold (4) is arranged in tank body (1), tank body (1) outside；
Cylinder (50), cylinder (50) are erected in tank body (1)；
It is characterized by: the settling tank further include:
Eddy flow hybrid separation water feed apparatus, including multichannel water inlet pipe (48) and water pump；Water inlet manifold (4) is overhanging from tank body (1)
Enter and be divided into the multichannel water inlet pipe (48), every road water inlet pipe (48) is from cylinder (50) lower sides with a pre-determined tilt
It angle and tangentially protrudes into cylinder (50)；The water pump is to water inlet manifold (4) pressurization using water inlet pipe (48) in cylinder (50)
Interior formation eddy flow field；
Micro bubble generation device, including gas-liquid mixing pump (34)/reflux elevator pump, gas crush injector (35), air pocket point
From device (36)；On the one hand connection cylinder (50) of gas-liquid mixing pump (34)/reflux elevator pump input terminal, on the other hand also connection one
On the one hand road afloat gas air inlet pipe (38), gas-liquid mixing pump (34)/reflux elevator pump output end crush injector with gas
(35) on the other hand the input terminal connection of air pocket separator (36) is gone back in input terminal connection；It is logical that gas crushes injector (35)
It crosses and separately input terminal is set and is connected to afloat gas air inlet pipe (38), gas crushes the output end connection air pocket point of injector (35)
Input terminal from device (36).
2. the settling tank as described in claim 1 with microbubble cyclone air-flotation, which is characterized in that setting is with holes in cylinder (50)
Partition (20), cylinder (50) is divided into two regions communicated up and down by partition (20), and upper region is inhalant region, and lower region is
Exhalant region；Water inlet pipe (48) Xiang Suoshu inhalant region supplies water, and gas-liquid mixing pump (34)/reflux elevator pump is drawn from the exhalant region
Water.
3. the settling tank as claimed in claim 2 with microbubble cyclone air-flotation, which is characterized in that the bottom of partition (20) is arranged
Sludge pipe (28), one end of sludge pipe (28) pass through the exhalant region and are mounted on partition (20), the other end of sludge pipe (28)
Lead directly to tank body (1) outside.
4. the settling tank as described in claim 1 with microbubble cyclone air-flotation, which is characterized in that the settling tank further includes can
Discharge equipment is gone up and down, the liftable discharge equipment includes:
Oil extraction cylinder (19), oil extraction cylinder (19) are fixed in cylinder (50) and coaxial with cylinder (50)；
The both ends horizontal of fixed bracket (47), fixed bracket (47) is fixed on the side wall of oil extraction cylinder (19)；
Lifting regulating rod (45), one end of lifting regulating rod (45) passes through the top of sedimentation tank (1) and the other end is solid vertically
It is scheduled on fixed bracket (47)；
One end of guide shell (43), guide shell (43) is socketed on the output end of oil extraction cylinder (19)；
One end of oil exit pipe (27), oil exit pipe (27) is connected with the other end of guide shell (43), the other end of oil exit pipe (27)
Lead directly to tank body (1) outside.
5. the settling tank as claimed in claim 4 with microbubble cyclone air-flotation, which is characterized in that oil extraction cylinder (19) is in infundibulate
Shape, and thick mouth is upward, thin mouth down.
6. the settling tank as claimed in claim 4 with microbubble cyclone air-flotation, which is characterized in that lifting regulating rod (45) and solid
Fixing sleeve (46) are arranged in the intersection of fixed rack (47).
7. the settling tank as claimed in claim 4 with microbubble cyclone air-flotation, which is characterized in that the liftable discharge equipment
Further include:
Handwheel (15), is coaxially mounted on the other end of lifting regulating rod (45).
8. the settling tank as described in claim 1 with microbubble cyclone air-flotation, which is characterized in that the pipe in water inlet manifold (4)
Road installation release (49).
9. the settling tank as described in claim 1 with microbubble cyclone air-flotation, which is characterized in that cylinder is arranged at least on (50)
Multiple water distribution mouths (18) are arranged on water distributor (16) in water distributor (16) all the way.
10. the settling tank as described in claim 1 with microbubble cyclone air-flotation, which is characterized in that guide shell (43) and oil extraction
Socket place setting sealing ring (44) of cylinder (19) is sealed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821346373.4U CN209065558U (en) | 2018-08-21 | 2018-08-21 | A kind of settling tank with microbubble cyclone air-flotation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821346373.4U CN209065558U (en) | 2018-08-21 | 2018-08-21 | A kind of settling tank with microbubble cyclone air-flotation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456661A (en) * | 2019-09-09 | 2021-03-09 | 抚顺远宏石化设备科技开发制造有限公司 | Integrated sewage treatment pry |
| CN112759139A (en) * | 2021-01-15 | 2021-05-07 | 武汉工程大学 | Rotational flow air flotation oil-containing sewage treatment system |
| CN112811510A (en) * | 2021-01-15 | 2021-05-18 | 武汉工程大学 | Mixing device for oil, gas, liquid and floc |
-
2018
- 2018-08-21 CN CN201821346373.4U patent/CN209065558U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456661A (en) * | 2019-09-09 | 2021-03-09 | 抚顺远宏石化设备科技开发制造有限公司 | Integrated sewage treatment pry |
| CN112759139A (en) * | 2021-01-15 | 2021-05-07 | 武汉工程大学 | Rotational flow air flotation oil-containing sewage treatment system |
| CN112811510A (en) * | 2021-01-15 | 2021-05-18 | 武汉工程大学 | Mixing device for oil, gas, liquid and floc |
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