CN104310527A - Device and method for cyclone filter treatment of oily sludge - Google Patents
Device and method for cyclone filter treatment of oily sludge Download PDFInfo
- Publication number
- CN104310527A CN104310527A CN201410547031.9A CN201410547031A CN104310527A CN 104310527 A CN104310527 A CN 104310527A CN 201410547031 A CN201410547031 A CN 201410547031A CN 104310527 A CN104310527 A CN 104310527A
- Authority
- CN
- China
- Prior art keywords
- fluid inlet
- inlet pipe
- cylindrical shell
- pressure difference
- waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of oil water separation of oil fields and relates to a device and method for cyclone filter treatment of oily sludge. Advantages of hydrocyclones and a microporous titanium rod are integrated so as to efficiently treat oily sludge of the oil field. By virtue of an ultrasonic transducer and a backflush mechanism, the device in the operating period has a self-cleaning function, so that the operating time of the whole device can be prolonged and the efficiency is improved. The inner flow fields of the hydrocyclones of double liquid inlets are more stable, so that the filter treatment effect is better. The device and method provided by the invention have the advantages of reasonable structural design, convenience in operation and high work efficiency.
Description
Technical field
The invention belongs to oil well oil-water separation technology field, relate to a kind of cyclone filter process oily(waste)water devices and methods therefor.
Background technology
Along with the development of oil recovery technique, the oily water separation in produced liquid in oil well day by day becomes and reduces Oil extraction cost, energy-saving and cost-reducing, minimizing ground engineering construction is invested, the important channel of raising oilfield economic benefit.Hydrocyclone because of its equipment there is less investment, energy consumption is little, separation efficiency is high, floor space is little, installation and maintenance and the feature such as working cost is low, at home and abroad many oil fields are applied at present, and obtain good economic benefit.But the application of hydrocyclone has certain limitation, to emulsion and be less than 15 μm oil droplet be difficult to be separated, reach depth-averaged model index to ask, then need to use with other process matching.
Micropore titanium rod is pipeline empty in the middle of, and duct wall is titanium valve sintering, and duct wall has the duct of micron order (normally 1 microns), can enter in titanium rod by the molecule in block water, may be used for purifying water.Titanium rod strainer uses ti powder sintered filter core, be generally used for coarse filtration or intermediate filtered, have that quality is light, high temperature resistant, high pressure, strong acid, highly basic, corrosion-resistant, the features such as filter core iterative regenerable use, but titanium rod filter core after being used for a while, to blocking to a certain degree be produced, show as flow and reduce, filter forefront pressure and increase.For the new filter core used, the general clear water that adopts recoils, and the method for blow-back is cleaned; For after repeatedly back flushing, when the not obvious rise of filter effect, the hydrochloric acid soln of available less than 5%, or the sulphuric acid soln below 8%, or the NaoH solution of less than 10% soaks at normal temperatures, then clean with clear water, and titanium rod is disassembled cleaning operation complexity, time-consuming longer.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides one and hydrocyclone and titanium rod strainer advantage are integrated, efficiently can process oil-contaminated water of oil field, and there is a kind of cyclone filter process oily(waste)water device of automatic cleaning function.A kind of cyclone filter process oily(waste)water device, comprising: hydrocyclone and micropore titanium rod; Described hydrocyclone comprises work cylindrical shell and liquid outlet pipe, and described liquid outlet pipe is arranged on work cylindrical shell bottom; Described micropore titanium rod is arranged on working barrel intracoelomic cavity; Described micropore titanium rod also comprises pure water inlet pipe, and described pure water inlet pipe laterally passes from described liquid outlet pipe.
In such scheme, described work cylindrical shell comprises cylindrical shell part, cone shell part, upflow tube and the first fluid inlet pipe; Described upflow tube is arranged on the top of cylindrical shell part, described upflow tube is provided with upflow tube valve; Described first fluid inlet pipe is arranged on the tangential direction of cylindrical shell part along cylindrical shell face, and described first fluid inlet pipe is provided with the first fluid inlet valve.
In such scheme, described work cylindrical shell also comprises the second fluid inlet pipe; Described second fluid inlet pipe is arranged on the tangential direction of cylindrical shell part along cylindrical shell face, described second fluid inlet pipe and described first fluid inlet tube hub symmetrical; Described second fluid inlet pipe is provided with the second fluid inlet valve.
In such scheme, described liquid outlet pipe is provided with liquid outlet valve; Described upflow tube and described liquid outlet pipe are arranged on the same axis.
In such scheme, described micropore titanium rod comprises multiple ring texture, and U-shaped structure is converged in the bottom of described ring texture, and described ring texture works the symmetrical vertically distribution of central shaft of cylindrical shell relatively.
In such scheme, also comprise auto cleaning system; Described auto cleaning system comprises some ultrasonic transducers that work cylinder body outer wall is arranged.
Further, the surface that described ultrasonic transducer is connected with work cylinder body outer wall is circular arc camber.
Further, described auto cleaning system also comprises back flushing mechanism; Described automatic backwash mechanism comprises the first pressure difference transmitter, the second pressure difference transmitter, the 3rd pressure difference transmitter and pure water inlet valve; Described first pressure difference transmitter is arranged on described first fluid inlet pipe; Described second pressure difference transmitter is arranged on described second fluid inlet pipe; Described 3rd pressure difference transmitter and pure water inlet valve are separately positioned on the different positions of described pure water inlet pipe.
The present invention also provides a kind of filter method of cyclone filter process oily(waste)water device, and concrete steps comprise:
Steps A: automatic or manual opens described first fluid inlet valve, the second fluid inlet valve, upflow tube valve, liquid outlet valve and pure water inlet valve, liquid to be filtered enters working barrel intracoelomic cavity from described first fluid inlet pipe and described second fluid inlet pipe along the tangential direction in described cylindrical shell part shell face;
Step B: after liquid to be filtered enters working barrel intracoelomic cavity, is subject to the restriction of housing, forces liquid to do the motion of top-down dual rotary;
Step C: the light phase medium of liquid to be filtered is assembled to axle center and discharged by described upflow tube;
Step D: the heavy phase medium of liquid to be filtered, while rotating, carries out Depth Filtration through described micropore titanium rod;
Step e: the water purification after filtration is discharged by described pure water inlet pipe; Shift to limit wall containing the centrifugalization of solid particulate sewage and discharged by bottom liquid outlet pipe, completing filtration procedure.
In such scheme, also comprise the self-cleaning method of auto cleaning system, concrete steps comprise:
Steps A: when strainer is blocked, described first pressure difference transmitter and the pressure reduction between the second pressure difference transmitter and described 3rd pressure difference transmitter become large, need to clean filtering system, close described first fluid inlet valve, the second fluid inlet valve and upflow tube valve;
Step B: the power supply starting described ultrasonic transducer, after described ultrasonic transducer cleans described micropore titanium rod surface;
Step C: start backwashing procedures, clean water is entered in described micropore titanium rod by described pure water inlet pipe recoil and carries out back flushing;
Step D: washing fluid is discharged from described liquid outlet pipe, completes backwash process.
Beneficial effect: the advantage of hydrocyclone and micropore titanium rod, compared with prior art, integrates, efficiently can process oil-contaminated water of oil field by technical solution of the present invention; By ultrasonic transducer and back flushing mechanism, make device at run duration, there is self-cleaning function, the working time of whole device can be extended, raise the efficiency; The hydrocyclone interior flow field of two fluid inlet is more stable, and filtration treatment effect can be better; The present invention has reasonable in design, easy to operate, the advantage that working efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is schematic perspective view of the present invention.
In figure, 1, cylindrical shell part 2, cone shell part 3, micropore titanium rod 4, first fluid inlet pipe 5, second fluid inlet pipe 6, upflow tube 7, liquid outlet pipe 8, pure water inlet pipe 9, first fluid inlet valve 10, second fluid inlet valve 11, upflow tube valve 12, liquid outlet valve 13, pure water inlet valve 14, first pressure difference transmitter 15, second pressure difference transmitter 16, the 3rd pressure difference transmitter 17, ultrasonic transducer 18, wire.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, a kind of cyclone filter process oily(waste)water device, comprising: hydrocyclone and micropore titanium rod 3; Described hydrocyclone comprises work cylindrical shell, and described work cylindrical shell comprises cylindrical shell part 1 and cone shell part 2; Described cylindrical shell part 1 top is provided with upflow tube 6, and described upflow tube 6 is provided with upflow tube valve 11; Described cylindrical shell part 1 also comprises the first fluid inlet pipe 4 and the second fluid inlet pipe 5, described first fluid inlet pipe 4 and the second fluid inlet pipe 5 are separately positioned on cylindrical shell part 1 along on the different positions of cylindrical shell face tangential direction, and described first fluid inlet pipe 4 distributes with described second fluid inlet pipe 5 centrosymmetry; Described first fluid inlet pipe 4 is respectively arranged with the first fluid inlet valve 9 and the first pressure difference transmitter 14, described second fluid inlet pipe 5 is provided with the second fluid inlet valve 10 and the second pressure difference transmitter 15; Described cone shell part 2 is provided with liquid outlet pipe 7 bottom, and described liquid outlet pipe 7 is provided with liquid outlet valve 12; Described upflow tube 6 arranges on the same axis with described liquid outlet pipe 7; Described micropore titanium rod 3 is arranged on working barrel intracoelomic cavity; Described micropore titanium rod 3 comprises multiple ring texture, and U-shaped structure is converged in the bottom of described ring texture, and described ring texture works the symmetrical vertically distribution of central shaft of cylindrical shell relatively; Described micropore titanium rod 3 also comprises pure water inlet pipe 8, and described pure water inlet pipe 8 laterally passes from described liquid outlet pipe 7, described pure water inlet pipe 8 is respectively arranged with the 3rd pressure difference transmitter 16 and pure water inlet valve 13.
The present invention also comprises auto cleaning system, and described auto cleaning system comprises ultrasonic transducer 17 and automatic backwash mechanism; Described work cylinder body outer wall arranges some ultrasonic transducers 17, and described ultrasonic transducer 17 comprises wire 18; The surface that described ultrasonic transducer 17 is connected with described work cylinder body outer wall is circular arc camber; Described auto cleaning system is controlled by computer automatic control system.
Carry out the method for filtering by apparatus of the present invention, concrete steps comprise:
Steps A: automatic or manual opens described first fluid inlet valve 9, second fluid inlet valve 10, upflow tube valve 11, liquid outlet valve 12 and pure water inlet valve 13, and liquid to be filtered enters working barrel intracoelomic cavity from described first fluid inlet pipe 4 and described second fluid inlet pipe 5 along the tangential direction in described cylindrical shell part 1 shell face;
Step B: after liquid to be filtered enters working barrel intracoelomic cavity, is subject to the restriction of housing, forces liquid to do the motion of top-down dual rotary;
Step C: the light phase medium of liquid to be filtered is assembled to axle center and discharged by described upflow tube 6;
Step D: the heavy phase medium of liquid to be filtered, while rotating, carries out Depth Filtration through described micropore titanium rod 3;
Step e: the water purification after filtration is discharged by described pure water inlet pipe 8; Shift to limit wall containing the centrifugalization of solid particulate sewage and discharged by bottom liquid outlet pipe 7, completing filtration procedure.
The self-cleaning method of apparatus of the present invention auto cleaning system, concrete steps comprise:
Steps A: when strainer is blocked, described first pressure difference transmitter 14 and the pressure reduction between the second pressure difference transmitter 15 and described 3rd pressure difference transmitter 16 become large, need to clean filtering system, close described first fluid inlet valve 9, second fluid inlet valve 10 and upflow tube valve 11;
Step B: the power supply starting described ultrasonic transducer 17, after described ultrasonic transducer 17 cleans described micropore titanium rod 3 surfaces;
Step C: start backwashing procedures, clean water is entered in described micropore titanium rod 3 by described pure water inlet pipe 8 recoil and carries out back flushing;
Step D: washing fluid is discharged from described liquid outlet pipe 7, completes backwash process.
Although the present invention describes embodiment herein; but coverage of the present invention is not limited thereto; on the contrary; all technical schemes that the present invention falls in fact within the scope of the claims under containing all instructions on literal or in equivalents, protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a cyclone filter process oily(waste)water device, is characterized in that, comprises hydrocyclone and micropore titanium rod (3);
Described hydrocyclone comprises work cylindrical shell and liquid outlet pipe (7), and described liquid outlet pipe (7) the work cylindrical shell of being arranged on bottom;
Described micropore titanium rod (3) is arranged on working barrel intracoelomic cavity;
Described micropore titanium rod (3) also comprises pure water inlet pipe (8), and described pure water inlet pipe (8) is from described liquid outlet pipe
(7) laterally pass.
2. a kind of cyclone filter process oily(waste)water device according to claim 1, is characterized in that, described work cylindrical shell comprises cylindrical shell part (1), cone shell part (2), upflow tube (6) and the first fluid inlet pipe (4);
Described upflow tube (6) is arranged on the top of cylindrical shell part (1), described upflow tube (6) is provided with upflow tube valve (11);
Described first fluid inlet pipe (4) is arranged on the tangential direction of cylindrical shell part (1) along cylindrical shell face, and described first fluid inlet pipe (4) is provided with the first fluid inlet valve (9).
3. a kind of cyclone filter process oily(waste)water device according to claim 1, it is characterized in that, described work cylindrical shell also comprises the second fluid inlet pipe (5);
Described second fluid inlet pipe (5) is arranged on the tangential direction of cylindrical shell part (1) along cylindrical shell face, and described second fluid inlet pipe (5) and described first fluid inlet pipe (4) centrosymmetry distribute;
Described second fluid inlet pipe (5) is provided with the second fluid inlet valve (10).
4. a kind of cyclone filter process oily(waste)water device according to claim 1, is characterized in that, described liquid outlet pipe (7) is provided with liquid outlet valve (12);
Described upflow tube (6) and described liquid outlet pipe (7) are arranged on the same axis.
5. a kind of cyclone filter process oily(waste)water device according to claim 1, it is characterized in that, described micropore titanium rod (3) comprises multiple ring texture, and U-shaped structure is converged in the bottom of described ring texture, and described ring texture works the symmetrical vertically distribution of central shaft of cylindrical shell relatively.
6. a kind of cyclone filter process oily(waste)water device according to claim 1, is characterized in that, also comprise auto cleaning system;
Described auto cleaning system comprises some ultrasonic transducers (17) that work cylinder body outer wall is arranged.
7. a kind of cyclone filter process oily(waste)water device according to claim 6, is characterized in that, the surface that described ultrasonic transducer (17) is connected with work cylinder body outer wall is circular arc camber.
8. a kind of cyclone filter process oily(waste)water device according to claim 6, it is characterized in that, described auto cleaning system also comprises back flushing mechanism;
Described automatic backwash mechanism comprises the first pressure difference transmitter (14), the second pressure difference transmitter (15), the 3rd pressure difference transmitter (16) and pure water inlet valve (13);
Described first pressure difference transmitter (14) is arranged on described first fluid inlet pipe (4);
Described second pressure difference transmitter (15) is arranged on described second fluid inlet pipe (5);
Described 3rd pressure difference transmitter (16) and pure water inlet valve (13) are separately positioned on the different positions of described pure water inlet pipe (8).
9. the filter method of a kind of cyclone filter process oily(waste)water device according to claim 1, is characterized in that, comprising:
Steps A: automatic or manual opens described first fluid inlet valve (9), the second fluid inlet valve (10), upflow tube valve (11), liquid outlet valve (12) and pure water inlet valve (13), liquid to be filtered enters working barrel intracoelomic cavity from described first fluid inlet pipe (4) and described second fluid inlet pipe (5) along the tangential direction in described cylindrical shell part (1) shell face;
Step B: after liquid to be filtered enters working barrel intracoelomic cavity, is subject to the restriction of housing, forces liquid to do the motion of top-down dual rotary;
Step C: the light phase medium of liquid to be filtered is assembled to axle center and discharged by described upflow tube (6);
Step D: the heavy phase medium of liquid to be filtered, while rotating, carries out Depth Filtration through described micropore titanium rod (3);
Step e: the water purification after filtration is discharged by described pure water inlet pipe (8); Shift to limit wall containing the centrifugalization of solid particulate sewage and discharged by bottom liquid outlet pipe (7), completing filtration procedure.
10. the filter method of a kind of cyclone filter process oily(waste)water device according to claim 9, it is characterized in that, also comprise the self-cleaning method of auto cleaning system, concrete steps comprise:
Steps A: when strainer is blocked, described first pressure difference transmitter (14) and the pressure reduction between the second pressure difference transmitter (15) and described 3rd pressure difference transmitter (16) become large, need to clean filtering system, close described first fluid inlet valve (9), the second fluid inlet valve (10) and upflow tube valve (11);
Step B: the power supply starting described ultrasonic transducer (17), after described ultrasonic transducer (17) cleans described micropore titanium rod (3) surface;
Step C: start backwashing procedures, clean water is entered in described micropore titanium rod (3) by described pure water inlet pipe (8) recoil and carries out back flushing;
Step D: washing fluid is discharged from described liquid outlet pipe (7), completes backwash process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547031.9A CN104310527A (en) | 2014-10-16 | 2014-10-16 | Device and method for cyclone filter treatment of oily sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547031.9A CN104310527A (en) | 2014-10-16 | 2014-10-16 | Device and method for cyclone filter treatment of oily sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104310527A true CN104310527A (en) | 2015-01-28 |
Family
ID=52365881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410547031.9A Pending CN104310527A (en) | 2014-10-16 | 2014-10-16 | Device and method for cyclone filter treatment of oily sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310527A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019627A (en) * | 2021-03-26 | 2021-06-25 | 重庆电力高等专科学校 | Filtration liquid smashing and filtering device |
| CN114225603A (en) * | 2021-12-22 | 2022-03-25 | 常州大学 | Multiple air purification and filth recovery unit based on passageway circles round |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185627Y (en) * | 1993-02-15 | 1994-12-21 | 郝相臣 | Cyclone fine filter |
| CN2923676Y (en) * | 2006-06-14 | 2007-07-18 | 中国石油天然气集团公司 | Air jet spiral flow flash-floating device |
| CN200945382Y (en) * | 2006-07-02 | 2007-09-12 | 大庆石油学院 | Liquid-liquid separating microporous rotational flow filter |
| JP4009180B2 (en) * | 2002-11-06 | 2007-11-14 | 昌紀 江内 | Suspended water separation treatment system |
| CN102225383A (en) * | 2011-04-07 | 2011-10-26 | 常州大学 | Separator and separation method thereof |
-
2014
- 2014-10-16 CN CN201410547031.9A patent/CN104310527A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185627Y (en) * | 1993-02-15 | 1994-12-21 | 郝相臣 | Cyclone fine filter |
| JP4009180B2 (en) * | 2002-11-06 | 2007-11-14 | 昌紀 江内 | Suspended water separation treatment system |
| CN2923676Y (en) * | 2006-06-14 | 2007-07-18 | 中国石油天然气集团公司 | Air jet spiral flow flash-floating device |
| CN200945382Y (en) * | 2006-07-02 | 2007-09-12 | 大庆石油学院 | Liquid-liquid separating microporous rotational flow filter |
| CN102225383A (en) * | 2011-04-07 | 2011-10-26 | 常州大学 | Separator and separation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019627A (en) * | 2021-03-26 | 2021-06-25 | 重庆电力高等专科学校 | Filtration liquid smashing and filtering device |
| CN113019627B (en) * | 2021-03-26 | 2023-06-27 | 重庆电力高等专科学校 | Percolate crushing and filtering device |
| CN114225603A (en) * | 2021-12-22 | 2022-03-25 | 常州大学 | Multiple air purification and filth recovery unit based on passageway circles round |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203610051U (en) | Sewage recycle and reuse device for road cleaning and sweeping machine | |
| CN203899249U (en) | Automatic back-flush filter with compound filter element | |
| CN102794044B (en) | Multi-filter cylinder automatic backwashing filter apparatus | |
| CN100438945C (en) | Press filtration type water purification method and device therefor | |
| CN205019806U (en) | Self -cleaning filter | |
| CN103908819A (en) | Vertical type high pressure full-automatic backwashing filter | |
| CN102107100A (en) | Differential-pressure swirl-type backwashing filtration system | |
| CN111228866A (en) | Online self-cleaning medium filtering device | |
| CN101496970A (en) | On-line bidirectional automatic backwashing type filtering equipment | |
| CN210674451U (en) | Intelligent backwashing prefilter | |
| CN105233545A (en) | Spiral plate type filter system and method | |
| CN103908821A (en) | Horizontal type high pressure full-automatic backwashing filter | |
| CN104310527A (en) | Device and method for cyclone filter treatment of oily sludge | |
| CN112386968A (en) | Upward flow expansion rate adjustable medium filter | |
| CN103143197A (en) | Multi-filter-element backflushing self-cleaning filter screen | |
| CN202682885U (en) | Cloth media filter | |
| CN102861479B (en) | Self-cleaning cyclone composite precision sand remover | |
| CN204865181U (en) | Fibre filter | |
| CN103566764B (en) | A kind of recovery effluent cycle regeneration device and method of road cleaning sweeper | |
| CN204079625U (en) | The combined stainless steel water purifier of circumscribed | |
| CN104208941A (en) | Fiber rotary disk filtration tank | |
| CN205055579U (en) | It filters filter core regenerating unit to add fever type | |
| CN203447865U (en) | Fully-automatic filtration and cyclic utilization device for wet-type electrostatic precipitation ash water | |
| CN208212654U (en) | A kind of oil field skid-mounted type filter plant | |
| CN201353457Y (en) | Online bidirectional automatic backwashing filter device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |