CN106809914A - A kind of oil slick, float suction apparatus - Google Patents
A kind of oil slick, float suction apparatus Download PDFInfo
- Publication number
- CN106809914A CN106809914A CN201610887596.0A CN201610887596A CN106809914A CN 106809914 A CN106809914 A CN 106809914A CN 201610887596 A CN201610887596 A CN 201610887596A CN 106809914 A CN106809914 A CN 106809914A
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- Prior art keywords
- suction inlet
- pipe
- water
- suction
- supply
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
Abstract
The embodiment of the invention provides a kind of oil slick, float suction apparatus, water-supply-pipe and buoyancy unit including oil pooling cylinder, connection water pump, oil pooling cylinder includes the bottom of the suction inlet, the telescoping tube in stage casing and bottom on top, water-supply-pipe is connected and by ancillary equipment fixed position with bottom, and the water-supply-pipe mouth of pipe is opened in oil pooling cylinder inner bottom part；Buoyancy unit is multiple ball float away from suction inlet equalization setting, and suction inlet is independently arranged and is mutually connected in length-adjustable mode, and when buoyancy unit floats over liquid level, suction inlet is suspended to below buoyancy unit, and suction inlet is adjustable with the distance of liquid level；The suction apparatus stable working state, the floating state with stabilization during work and non-labile neutral buoyancy state, are difficult to be influenceed by environmental factors such as liquid level states, and applicability is wide, is particularly suitable for being worked in the environment of water level and the overall acute variation of current；Suction inlet can be adjusted easily in subsurface depth, to respond rapidly to operating mode needs.
Description
Technical field
The invention belongs to water pollution processing technology field, more particularly to a kind of oil slick, float suction apparatus divide for sucking
From the oil slick or float of sewage surface.
Background technology
The device that the suction of the oil slick (float) of water surface is can separate, such as weir skimmer, using oil or other proportions
Dirt less than water generally swims in the principle of the water surface, flows into collection by oil slick when crest of weir is located exactly at below oil slick layer surface
In oil groove, so as to realize water-oil separating；Oil slick (float) suction apparatus is widely used in wastewater treatment, intermetallic composite coating, chemistry
The floating on water greasy dirt of the industrial circles such as industry, food processing, cooling agent treatment is separated, reclaimed or waste treatment, using large-scale
Equipment can be also cleared up the marine floating oil that oil leakage causes.
In the prior art, the common structure and working method of weir formula oil slick (float) suction apparatus are as shown in Figure 1：With flexible
Pipe 11 is the oil trap that main body constitutes bottom lock；Oil trap bottom is fixed by peripheral structure, connects the pipe of the water-supply-pipe 4 of water pump
Mouth 41 is arranged on oil trap bottom section；Suction inlet 13 is fixed on the top of telescoping tube 11 as crest of weir, while also being filled as buoyancy
Put, suction inlet 13 is swum in oil trap on liquid level；Being extracted by water pump makes oil trap internal liquid amount change, and cooperation is stretched
The flexible of the draw 11 makes suction inlet 13 be risen and fallen with liquid level in oil trap；Suction inlet 13 sink make the externally-located water surface of its bead with
Under, then the oil slick (float) on top layer of bubbling through the water column starts to cover in crest of weir injection oil trap, and liquid level rises therewith in oil trap, inhales
Entrance 13 floats makes its bead rise again, and straight external flow is interrupted, and starts subsequent cycle；Oil trap is constantly extracted by water pump
Internal liquid, the appropriate buoyancy of maintenance and weight make the opening's edge of suction inlet 13 in outside to constitute neutral buoyancy state in a balanced way
The upper and lower oscillation on small scale of water surface site, realizes being automatically drawn into for oil slick (float).Such as Chinese patent literature CN102807265B
A kind of disclosed oil slick or floating material absorption plant, that is, employ with said apparatus essentially identical configuration and principle, its with
, used as oil trap, used as the interior buoy in oil absorption kettle, suction inlet can be with suction for the wing suction inlet that oil absorption kettle top is fixed for oil absorption kettle
The change of oil can inside liquid level and fluctuated near the outside water surface, outside water surface site can be automatically held in.
Although the device of above-mentioned prior art can realize conventional oil slick (float) suction, but still with following deficiency：In
Property buoyant state equilibrium easily disturbed by environmental factor, (such as have wavy SEA LEVEL VARIATION is big or water flow variation is anxious
Sea) etc. under use environment the working condition of device be difficult to stabilization, resulting even in cannot normal work；Suction inlet position adjustments
Difficulty, because suction inlet position is influenceed by buoyancy, own wt and the multiple of telescoping tube tension force, it is difficult to which suction inlet position is accurate
Adjust to closing on water surface site；To make device stable working, it is necessary to avoid the amount of liquid fluctuation in oil trap as far as possible, but
Operation principle based on said apparatus, holding suction inlet flow trim is simultaneously equal with the flow of pumped with very big difficulty.
To sum up, it would be highly desirable to develop a kind of stable working, it is easy to adjust, and the wide oil slick of applicability (float) suction dress
Put.
The content of the invention
The problem that the present invention exists for oil slick (float) suction apparatus in the prior art, there is provided a kind of oil slick, float
Suction apparatus, it has stable working, adjusts the characteristics of facilitating, and can also be kept in the larger environment of water level and water flow variation
Good working order.
In order to solve the above technical problems, a kind of oil slick provided in an embodiment of the present invention, float suction apparatus, including oil pooling cylinder
With connection water pump water-supply-pipe, the oil pooling cylinder include telescoping tube, bottom and suction inlet, wherein：The suction inlet is arranged on institute
State telescoping tube top；The bottom is connected to flexible bottom of the tube and by telescoping tube bottom end closure；The water-supply-pipe and the bottom
It is connected and by ancillary equipment fixed position, the water-supply-pipe has the mouth of pipe for being opened in the oil pooling cylinder inner bottom part；The suction dress
Putting also includes the buoyancy unit being connected with the suction inlet, and when buoyancy unit floats over liquid level, suction inlet is suspended under buoyancy unit
Side；Connection spacing between the buoyancy unit and suction inlet is adjustable, and adjusting the connection spacing can change suction inlet away from liquid level
Distance.
Preferably, setting the connection spacing is：When the buoyancy unit floats on liquid level, the opening's edge of the suction inlet exists
Subsurface depth is 0~20 millimeter.
Preferably, the buoyancy unit is connected by adjustable connection unit with connecting bracket, the suction inlet and the company
Connect support to fix, by between the connection for adjusting the adjustable connection unit length change suction inlet and buoyancy unit
Away from；It is further preferred that the adjustable connection unit is the adjustable screw structural of connecting length.
Preferably, the buoyancy unit is made up of some ball floats, is connected to by the adjustable connection unit described
In connecting bracket；It is further preferred that the suction inlet is fixed on the connecting bracket center, some ball float link positions
It is symmetrical centered on suction inlet；The ball float quantity is preferably more than three.
Used as the preferred of preceding solution, the water-supply-pipe is located at outside the oil pooling cylinder, and the mouth of pipe is opened in described
On bottom.
Used as the another preferred of preceding solution, the water-supply-pipe is located inside oil pooling cylinder, is connected to by fixed mount
On the bottom, the mouth of pipe is suspended from the bottom top.
In embodiment of the present invention above-mentioned technical proposal, buoyancy unit and suction inlet are independently arranged and mutually with length-adjustable
Mode is connected, and by the settable suction inlet of the height for adjusting connection unit and the distance of liquid level, its advantage is as follows：
1. described in suction apparatus work when with stabilization floating state and non-labile neutral buoyancy state, be difficult to receive
The influence of the environmental factors such as liquid level state, applicability is wide, stable working state；
2. external buoyancy unit can be overall acutely in water level and current using multiple ball floats away from suction inlet equalization setting
Device has more preferably stability under the working environment of change (as having wave)；
3. can the depth of convenient suction inlet opening's edge make regulation to respond rapidly to operating mode needs；
4. the oil pooling cylinder that bottom is fixed can voluntarily adapt to the integral elevating of the water surface by its stretching structure within the specific limits
Change, reduces manual intervention；
5. suction inlet stability of flow, it is easier to form stable working condition.
Brief description of the drawings
Fig. 1 is the basic structure schematic diagram of weir formula oil slick (float) suction apparatus of prior art；
Fig. 2 is oil slick provided in an embodiment of the present invention, float suction apparatus basic structure schematic diagram；
Fig. 3 is the working state schematic representation of oil slick provided in an embodiment of the present invention, float suction apparatus in oil tank；
Fig. 4 is the close-up schematic view of a-quadrant in Fig. 3；
Fig. 5 is oil slick shown in Fig. 3, the view of float suction apparatus water-supply-pipe extraction oil-collecting liquid within the cartridge；
Fig. 6 is that ball float and suction inlet are connected knot with three oil slick, the float suction apparatus of ball float shown in Fig. 3
The schematic diagram of structure.
[main element symbol description]
1- oil pooling cylinders；11- telescoping tubes；12- bottoms；13- suction inlets；14- fixed mounts；2- ball floats；31- connecting brackets；32-
Adjustable connection unit；4- water-supply-pipes；The 41- mouths of pipe；5- oil tank case lids；D- depth.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Unstable working condition, suction inlet position hardly possible that the present invention exists for prior art oil slick (float) suction apparatus
The problems such as fluctuating big with regulation, oil trap inner capacities, it is desirable to provide a kind of new oil slick, float suction apparatus.
A kind of oil slick, the float suction apparatus that one embodiment of the present of invention is provided are as shown in Fig. 2 including the and of oil pooling cylinder 1
The water-supply-pipe 4 of water pump is connected, oil pooling cylinder 1 is made up of telescoping tube 11, bottom 12 and suction inlet 13, wherein, suction inlet 13 is arranged on
The top of telescoping tube 11；Bottom 12 is connected to the bottom of telescoping tube 11 and by the bottom end closure of telescoping tube 11；Water-supply-pipe 4 is connected with bottom 12
And by ancillary equipment fixed position, water-supply-pipe 4 has the mouth of pipe 41 for being opened in the inner bottom part of oil pooling cylinder 1；Suction apparatus also includes and suction
The connected buoyancy unit of entrance 13, when buoyancy unit floats over liquid level, suction inlet 13 is suspended to buoyancy unit lower section；Buoyancy unit
Adjustable with connection spacing between suction inlet 13, regulation connection spacing can change suction inlet 13 away from liquid level apart from d；Institute of the present invention
State in the case that liquid level floats oil slick layer on the water surface, as oil slick layer surface, in the case of floating oil layer thickness very little, liquid level
With the water surface it is believed that essentially identical.
From Figure 2 it can be seen that the present embodiment is provided without structure of the suction inlet commonly used in the prior art as floating body, but will be floating
Power unit is independently arranged with suction inlet 13, and is attached by adjustable for height mode；Buoyancy unit is many in the present embodiment
Individual ball float 2, ball float 2 is conventional floating body, naturally it is also possible to use floating drum or other conventional floating bodies, according to the suction of diagram
Enter the occupation mode of device, when suction apparatus is positioned on pending liquid level, buoyancy unit can float on liquid level, suction inlet
13 are connected by connecting bracket 31 and adjustable connection unit 32 with ball float 2, and suction inlet 13 hangs down by buoyancy unit overall buoyancy
Hang under liquid level, and maintain a relatively stable state；Simultaneously because bottom position is relatively fixed, telescoping tube 11 is generally in stretching
State, ball float 2 also needs to provide the buoyancy of the resistance tension force of telescoping tube 11；To sum up, as the basic demand of buoyancy unit, ignoring
On the premise of stating suction apparatus remaining structure buoyancy, buoyancy unit available maximum buoyancy in water need to only be more than device itself
The maximum tension that weight is stretched in limit with telescoping tube 11；But use up when in actual use, to make suction apparatus work
Amount is steady, usual buoyancy unit can buoyancy be the bigger the better, often select available buoyancy much larger than the buoyancy of minimum requirements
Unit.
In the present embodiment, adjustable connection unit 32 selects common screw structural, is fastened by the diverse location in screw rod
To realize the manual regulation of ball float 2 and the spacing of suction inlet 13；Those skilled in the art also can be using the adjustable connection of other routines
Mode, including general automatic adjustment unit, such as use motor-driven rack pinion structure；According to different working environments
And demand is configured to the length of adjustable connection unit 32, generally when buoyancy unit floats on liquid level, the opening's edge of suction inlet 13
It is maintained at subsurface depth d unsuitable too deep, generally remains in the range of 0~20 millimeter.
In the present embodiment, water-supply-pipe 4 is connected in the inside of oil pooling cylinder 1 with bottom 12, used as optional implementation method, water-supply-pipe
4 both may be disposed inside oil pooling cylinder 1, may also set up outside oil pooling cylinder 1, in order to be easy to draw the liquid in oil pooling cylinder 1 as far as possible
Body, the mouth of pipe 41 is opened in the bottom in oil pooling cylinder 1.
It is as shown in Figure 3 and Figure 4 the example that oil slick of the present invention, float suction apparatus are used in oil tank, with foregoing implementation
Example is identical, and water-supply-pipe 4 is likewise provided as stretching into oil pooling cylinder 1, meanwhile, the epimere of the connection water pump of water-supply-pipe 4 is fixed on oil tank case
On lid 5, the oil tank case lid 5 is the ancillary equipment of described fixed water-supply-pipe 4, in other application occasion, generally select not with
Overall SEA LEVEL VARIATION or the less object of change are that water-supply-pipe 4 and bottom 12 provide fixing point as ancillary equipment；Under water-supply-pipe 4
Section through suction inlet 13 stretches into oil pooling cylinder 1, the end of water-supply-pipe 4 be arranged on illustrate with three fixed mounts of leg 14 in,
It is connected with bottom 12 by fixed mount 14, the mouth of pipe 41 positioned at the end of water-supply-pipe 4 is suspended from bottom 12 under the support of fixed mount 14
Side, extracts the state of liquid as shown in figure 5, arrow illustrates that the liquid of the bottom of oil pooling cylinder 1 is flowed in figure by the mouth of pipe 41；Using
Said structure and connected mode, water-supply-pipe 4 serve not only as connecting the passage of water pump, bottom 12 can also be indirectly fixed into periphery
In equipment, as shown in the contrast of the different working condition of Fig. 3 left and right sides device, when water surface elevation occurs integral elevating in oil tank
When, because the position of bottom 12 is relatively fixed, oil pooling cylinder 1 can't be moved integrally with the water surface, but be stretched by telescoping tube 11
Contracting adapts to water surface change, such to be designed with beneficial to the job stability for keeping the suction apparatus；Meanwhile, water-supply-pipe 4 is from suction
Mouth 13 is stretched into, and can function as playing position-limiting action as axis, and constraint suction inlet 13 makes its position in water and suspension appearance
State is more stablized；Used as another embodiment, input pipe can also be arranged on outside oil pooling cylinder, be connected with bottom from outside,
The mouth of pipe of input pipe is opened on bottom, also can slightly protrude bottom.
In above-described embodiment, the adjustable connection unit 32 equally uses the adjustable screw structural of connecting length, described floating
Power unit is made up of three ball floats 2, is connected in connecting bracket 31 by adjustable connection unit 32, the tool in the present embodiment
Attachment structure is as shown in fig. 6, wherein：Three connecting brackets of ball float 2 31 of correspondence are using with three Central Symmetries of end points
Structure, water-supply-pipe 4 is fixed on the location mid-shaft of connecting bracket 31, and three ball floats 2 are separately fixed in connecting bracket 31 and water-supply-pipe 4
Equidistantly and at three farthest end points, such structure can ensure the stability of suction inlet 13 when suction apparatus is floated；
It is to strengthen suction inlet 13 in subsurface stability, buoyancy unit is usually using more than three independent floating bodies, and multiple is floating
Body is tried one's best away from suction inlet position and is symmetrical arranged centered on suction inlet, and certainly, floating body also can be using asymmetrical other points
Mode for cloth, is defined by the buoyancy that floating body is produced with respect to suction inlet fixed position equilibrium assignment of trying one's best in a word.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description.Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and it
The difference of his embodiment, between each embodiment identical similar portion mutually referring to.It is involved in the various embodiments described above
And to technical characteristic do not constitute among each other conflict on the premise of can be mutually combined.
In the description of the invention, unless otherwise clearly defined and limited, term " " center ", " on ", D score, " interior ",
The orientation or position relationship of the instruction such as " outward " are based on shown in accompanying drawing, are for only for ease of the description present invention and are simplified and describe, without
It is that the device or element for indicating or implying meaning must should not be managed with specific orientation, with specific azimuth configuration and operation
It is limitation of the present invention to solve；Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " should do broad sense
Understand, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can be joined directly together, can be with
It is to be indirectly connected to by intermediary, or two connections of element internal.For one of ordinary skill in the art
Speech, can understand above-mentioned term concrete meaning in the present invention with concrete condition.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (9)
1. the water-supply-pipe (4) of a kind of oil slick, float suction apparatus, including oil pooling cylinder (1) and connection water pump, the oil pooling cylinder (1)
Including telescoping tube (11), bottom (12) and suction inlet (13), wherein：The suction inlet (13) is pushed up installed in the telescoping tube (11)
Portion；The bottom (12) is connected to telescoping tube (11) bottom and by telescoping tube (11) bottom end closure；The water-supply-pipe (4) with it is described
Bottom (12) is connected and by ancillary equipment fixed position, and the water-supply-pipe (4) is with the pipe for being opened in the oil pooling cylinder (1) inner bottom part
Mouth (41)；It is characterized in that：
Also include the buoyancy unit being connected with the suction inlet (13), suction inlet (13) is suspended to when buoyancy unit floats over liquid level
Buoyancy unit lower section；Connection spacing between the buoyancy unit and suction inlet (13) is adjustable, and adjusting the connection spacing can change
Become distance of the suction inlet (13) away from liquid level.
2. suction apparatus according to claim 1, it is characterised in that setting the connection spacing is：When the buoyancy list
When unit floats on liquid level, the opening's edge of the suction inlet (13) is 0~20 millimeter in subsurface depth (d).
3. suction apparatus according to claim 1, it is characterised in that the buoyancy unit passes through adjustable connection unit (32)
It is connected with connecting bracket (31), the suction inlet (13) is fixed with the connecting bracket (31), by adjusting the adjustable connection
Unit (32) length changes the connection spacing of the suction inlet (13) and buoyancy unit.
4. suction apparatus according to claim 3, it is characterised in that the adjustable connection unit (32) can for connecting length
The screw structural of tune.
5. suction apparatus according to claim 3, it is characterised in that the buoyancy unit is made up of some ball floats (2), leads to
The adjustable connection unit (32) is crossed to be connected in the connecting bracket (31).
6. suction apparatus according to claim 5, it is characterised in that the suction inlet (13) is fixed on the connecting bracket
(31) center, some ball float (2) link positions are symmetrical centered on suction inlet (13).
7. suction apparatus according to claim 5, it is characterised in that ball float (2) quantity is more than three.
8. the suction apparatus according to any one of claim 1 to 7, it is characterised in that the water-supply-pipe (4) is positioned at the collection
Oily cylinder (1) is outside, and the mouth of pipe (41) is opened on the bottom (12).
9. the suction apparatus according to any one of claim 1 to 7, it is characterised in that the water-supply-pipe (4) is positioned at oil pooling cylinder
(1) it is internal, it is connected on the bottom (12) by fixed mount (14), the mouth of pipe (41) is suspended from the bottom (12) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887596.0A CN106809914A (en) | 2016-10-11 | 2016-10-11 | A kind of oil slick, float suction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887596.0A CN106809914A (en) | 2016-10-11 | 2016-10-11 | A kind of oil slick, float suction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106809914A true CN106809914A (en) | 2017-06-09 |
Family
ID=59106589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610887596.0A Pending CN106809914A (en) | 2016-10-11 | 2016-10-11 | A kind of oil slick, float suction apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN106809914A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854164A (en) * | 2018-09-10 | 2018-11-23 | 逸乐(廊坊)环保科技有限公司 | A kind of cutting fluid waste oil discharger |
| CN110106845A (en) * | 2019-05-31 | 2019-08-09 | 深圳海洋卫士环保科技有限公司 | A kind of supernatant liquid absorption plant and its fence and sewage sucking system |
| CN110655145A (en) * | 2018-06-28 | 2020-01-07 | 张锦纶 | Two-section type oil-water separator |
| CN113248054A (en) * | 2021-06-22 | 2021-08-13 | 山东蓝海水产有限公司 | Marine product processing wastewater treatment device |
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| CA940317A (en) * | 1970-04-02 | 1974-01-22 | Per O. Oberg | Boom and method of manufacturing the same |
| CN201245467Y (en) * | 2008-03-26 | 2009-05-27 | 大庆摩恩达工程有限公司 | Floating oil gathering apparatus |
| CN201574385U (en) * | 2009-12-25 | 2010-09-08 | 青岛光明环保技术有限公司 | Dam-type oil recovery machine |
| CN202777930U (en) * | 2012-06-21 | 2013-03-13 | 延边万通经济技术合作有限公司 | Device for absorbing floating oil or floating objects |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA940317A (en) * | 1970-04-02 | 1974-01-22 | Per O. Oberg | Boom and method of manufacturing the same |
| CN201245467Y (en) * | 2008-03-26 | 2009-05-27 | 大庆摩恩达工程有限公司 | Floating oil gathering apparatus |
| CN201574385U (en) * | 2009-12-25 | 2010-09-08 | 青岛光明环保技术有限公司 | Dam-type oil recovery machine |
| CN202777930U (en) * | 2012-06-21 | 2013-03-13 | 延边万通经济技术合作有限公司 | Device for absorbing floating oil or floating objects |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655145A (en) * | 2018-06-28 | 2020-01-07 | 张锦纶 | Two-section type oil-water separator |
| CN108854164A (en) * | 2018-09-10 | 2018-11-23 | 逸乐(廊坊)环保科技有限公司 | A kind of cutting fluid waste oil discharger |
| CN110106845A (en) * | 2019-05-31 | 2019-08-09 | 深圳海洋卫士环保科技有限公司 | A kind of supernatant liquid absorption plant and its fence and sewage sucking system |
| CN113248054A (en) * | 2021-06-22 | 2021-08-13 | 山东蓝海水产有限公司 | Marine product processing wastewater treatment device |
| CN113248054B (en) * | 2021-06-22 | 2021-09-17 | 山东蓝海水产有限公司 | Marine product processing wastewater treatment device |
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Application publication date: 20170609 |