CN201143396Y - Millipore film filter - Google Patents
Millipore film filter Download PDFInfo
- Publication number
- CN201143396Y CN201143396Y CNU2007200778422U CN200720077842U CN201143396Y CN 201143396 Y CN201143396 Y CN 201143396Y CN U2007200778422 U CNU2007200778422 U CN U2007200778422U CN 200720077842 U CN200720077842 U CN 200720077842U CN 201143396 Y CN201143396 Y CN 201143396Y
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- Prior art keywords
- valve
- filter
- tank body
- flexible valve
- filter bag
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- Expired - Lifetime
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Abstract
The utility model relates to a micro-pore membrane filter which belongs to the technical field of wasted water treatment. The utility model includes a tank body, a stainless steel card, an expanded polytetrafluoroethylene membrane filter bag, filter bag supporting cage bones, an acid inlet flexible valve, a reflux flexible valve, a back wash flexible valve, a mud discharge flexible valve, a liquid intake valve of washing agent, an air solenoid pilot actuated valve and an air exhaust solenoid pilot actuated valve. The expanded polytetrafluoroethylene membrane filter bag is sheathed on the filter bag supporting cage bones and then all the filter bag supporting cage bones are fixed on the stainless steel card by screws. The stainless steel card divides the tank body into two areas; the upper part is a water cleaning area and the lower part is wasted liquid (namely filtration) area; the filter has a simple structure; besides, the expanded polytetrafluoroethylene material is manufactured into the membrane to be used as filter material to achieve the effect of real surface filter, thus leading the impurities in acid liquid to be completely intercepted on the surface of the membrane; as the selected membrane is provided with excellent acidoresistance, non-wettability and very small friction factors, thus ensuring the filter material not to generate phenomenon of plugging.
Description
Technical field
The utility model relates to a kind of equipment of technical field of waste water processing, specifically is a kind of microporous film filter of handling heavy metal wastewater thereby.The utility model can be applicable to handle heavy metal wastewater thereby and HNO
3+ HF nitration mixture pickling waste waters etc.
Background technology
In the former wastewater treatment process, at some heavy metal d p-block element ps, as Cd
2+, Cr
3+, Cu
2+, Fe
2+, Fe
3+, Hg
2+, Pb
2+, Zn
2+Deng and fluoride waste, mainly adopt alkali neutralization precipitation method to handle, form the precipitation of hydroxide and the CaF of particle very tiny (quite a few being arranged about 1 micron)
2And so on precipitation, utilize physical partition method or chemical flocculation precipitation method to carry out separating treatment again.
The physical separation fado is physical method such as to filter, centrifugal, because the restriction of filtering material, granule fails to be stopped by filtrate, makes water outlet can't reach discharge standard, and is same, and granule also can stop up filtrate, causes filtering failure.
The chemical flocculation precipitation method is the main means of administering above-mentioned waste water at present, and its key problem in technology is the selection of flocculant and the control of dosing control and reaction condition.This method can solve most of acid heavy metal waste water handling problems under the reliable prerequisite of operational management, but also has following some deficiency:
(1), processing technological flow is longer, floor space is bigger;
(2), general sedimentation basin institute blowdown mud moisture content is higher, so sludge treating system is huge relatively, invests also high;
(3), the chemical flocculation precipitation method is higher to the precipitation reaction conditional request, impact resistance is poor, when the former water water yield, water quality and the reaction condition of handling when desire took place than great fluctuation process, effluent characteristics was difficult to guarantee;
(4), the ton water running expense of chemical flocculation precipitation method is higher, be mainly reflected in medicament expense and use;
(5), the chemical flocculation precipitation method is because system complex, so operational management requires also higherly, needs perfect management system and sense of responsibility and could realize good operational effect;
(6), because environmental regulation is severe day by day, secondary pollution that the long-term use of the medicament that the chemical flocculation precipitation method adds may bring threatens and can not be ignored.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of microporous film filter is provided.The utility model project organization is simple, allocates flexible valve into, and having adopted and having made film with expanded PTFE is filtrate.Reach real surface filtration effect, the benefit of this filter method is: make suspension in the liquid all be trapped in the surface of film, because the film of selecting for use has splendid not being stained with property and very little coefficient of friction, we can guarantee that filter bag can not produce phenomenon of blocking.Under the situation that does not increase operating load, both guaranteed the flux peak of liquid like this, simultaneously also effective collection the solid particle in the liquid.
The utility model is achieved through the following technical solutions, and mainly comprises: tank body, stainless steel card, eptfe film filter bag, filter bag support cages bone, advance sour flexible valve, backflow flexible valve, backwash flexible valve, exhaust solenoid valve.The eptfe film filter bag is enclosed within on the filter bag support cages bone, by screw all filter bag support cages bones is fixed on the stainless steel card then.The stainless steel card is divided into two tank body, and top is clear water zone, and the bottom is waste liquid (promptly filtering) district.The top, waste liquid district of tank body is provided with the acid discharge pipeline, and the acid discharge pipeline can be connected in descaling bath.The tank body periphery is provided with into sour flexible valve, backflow flexible valve, backwash flexible valve, exhaust solenoid valve valve.
Describedly advance sour flexible valve, the backflow flexible valve is located at lower end, the outside, tank body waste liquid district.
Described backwash flexible valve, exhaust solenoid valve valve are located at tank body waste liquid district outer upper end.
Described tank body lower end is tapered, and tapered bottom end is provided with the spoil disposal flexible valve.
The utility model can also comprise: cleaning agent feed liquor valve, air magnetic valve, and cleaning agent feed liquor valve, air magnetic valve are located at the distolateral place of taper of tank body respectively.
The filter core of microporous film filter is made up of expanded PTFE filter bag and filter bag support cages bone.The film filter bag adopts that matter is close, porous, smooth expanded PTFE (PTFE) material, its low-friction coefficient, chemical stability and ganoid characteristics make filter pressure only need 0.07～0.1MPa, and the surface of film is cleared up very easily, with the clear film time of calculating second, make filtration reach continuous operation substantially, polytetrafluoroethylene (PTFE) is again the very high material of a kind of intensity simultaneously, makes life-span of filtering material be much higher than traditional filter material.Had splendid chemical stability by expanded polytetrafluoroethylene film filtrate, extremely low coefficient of friction, the temperature that ability is higher, porous, extreme obdurability are difficult for wearing out, and heavily fortified point is durable for a long time, is desirable filter material.The support cages bone has various material available, is applicable to different environments for use and field respectively.
In the configuration of valve, selected for use and do not had the flexible valve that stops up forever, flexible valve outward appearance novelty, simple in structure, flexibility contact by the valve inner bag, making the liquid that contains any solid particle, fiber all can reach 100% rapidly closes, when the solid particle diameter reach caliber 1/2 the time, flexible valve still can effectively close and open.Flexible valve is reasonable in design, and is widely applicable, no internal and outernal leakage, and latus rectum is big, and is easy for installation, and high-efficiency long-life can be through the keying more than tens thousand of times.
Microporous film filter has following characteristics:
1. filter pressure is low
Filter pressure only needs 0.07～0.1MPa, and the filter pressure of other liquid filter generally is about 0.3MPa.
2. to the effective filtration of beginning to end
Existing liquid filter (filtering as sand) always penetrates earlier at the beginning, just begins effective filtration along with filter cake formation and after reaching certain thickness, and is 10% of whole filtration time during this period of time approximately.And utility model is a surface filtration, and it does not have penetration phenomenon, is exactly effectively to filter from beginning.
3. primary purification, 100% holds back
The utility model does not need other affiliated facility, or divides and filter the purpose that just can reach decontaminating liquid several times, just can finish but once filter.Is 100% to be trapped at the film latus rectum with interior solid.
4. high throughput, continuous operation
Filter capacity is 5～10 times of other general filter, even 20 times, and need not reach the purification purpose by other solid-liquid separating equipment or segment processing, but disposable filtering is finished Separation of Solid and Liquid.
5. Kuan Guang filter area
The solids content of filtered fluid can be from 20PPM (0.002%) until 100000PPM (10%), also can filter as the liquid of mud, and can not influence filter effect because of too high solids content, and the clear liquid of discharge still is as clear as crystal.
6. good heat resistance
High energy is worked under 260 ℃ of high temperature.
7. wash filter material automatically
When filtration pressure reaches setting value, filter carries out the filter material flushing automatically, whole process only needed for 1～5 second, the pressure of flushing need not surpass 0.035MPa, do not need the emptying filter to recoil during flushing, flushing one finishes, and filter enters the filtration state again, whole process circular flow can realize control automatically by PLC.
8. film is difficult for stopping up
Because surface filtration, because the characteristic of filter membrane itself can both be fallen the outer filter cake of film by cleaning down when washing at every turn, flushing back circulation returns to normal condition again again.
9. fabulous anti-chemistry
Membrane filter has fabulous chemical stability, any acid-base solution of ability.
Life-span long, use cost is low
Poly-PTFE is made because the filter filtration material film is a varicosity, and it has particular performances: the wide operating temperature d. of a. chemistry inertness b. low-friction coefficient c. extremely strong toughness g. surface filtration of e. hydrophily f. that can not wear out.These characteristics make it reach the long-life, and maintenance cost significantly reduces, because low press filtration, energy consumption is few again, and use cost also greatly reduces.
11. floor space is little
Microporous film filter only needs the floor space of the traditional filtering device 1/10th of other same treatment amounts, and volume also is significantly smaller than other filter.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided the detailed embodiment and the course of work, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, present embodiment mainly comprises: tank body 1, stainless steel card 2, eptfe film filter bag 3, filter bag support cages bone 4, advance sour flexible valve 5, backflow flexible valve 6, backwash flexible valve 7, exhaust solenoid valve 11.Eptfe film filter bag 3 is enclosed within on the filter bag support cages bone 4, by screw all filter bag support cages bones 4 is fixed on the stainless steel card 2 then.Stainless steel card 2 is divided into two tank body 1, and top is clear water zone, and the bottom is waste liquid (promptly filtering) district.The top, waste liquid district of tank body 1 is provided with the acid discharge pipeline, and the acid discharge pipeline can be connected in descaling bath.Tank body 1 periphery is provided with valves such as into sour flexible valve 5, backflow flexible valve 6, backwash flexible valve 7, exhaust solenoid valve 11.
Described tank body 1 lower end is tapered, and tapered bottom end is provided with spoil disposal flexible valve 8.
The utility model can also comprise: cleaning agent feed liquor valve 9, air magnetic valve 10, and cleaning agent feed liquor valve 9, air magnetic valve 10 are located at the distolateral place of taper of tank body 1 respectively.
The course of work of present embodiment is as follows:
Acid solution in the descaling bath is passed through water pump lifting, enter tank body 1 by advancing sour flexible valve 5, after eptfe film filter bag 3 surface filtrations, impurity in the acid solution is attached on the eptfe film filter bag 3, form mud, the top acid discharge pipeline that the acid solution after the filtration enters tank body 1 again is back in the descaling bath.
During backwash, advance sour pump and do not quit work, only will advance sour flexible valve 5 and close, backflow flexible valve 6 is opened, and backwash flexible valve 7 is also opened, at this moment, acid solution does not enter in the filter, and being back to descaling bath, owing to stop feed liquor, internal pressure reduces in the filter, acid solution after the filtration oppositely flows out by film filter bag 3 inner bags and enters in the filter, discharge by backwash flexible valve 7 again, simultaneously the mud that is attached on film filter bag 3 surfaces is washed away, sink to the awl bottom of tank body 1.At this moment, open spoil disposal flexible valve 8, mud is discharged in tank body 1, enters products for further processing in the sludge-tank.
When initial start-up, all be air in the tank body 1, then need exhaust solenoid valve 11 is opened, to guarantee tank body 1 internal pressure equilibrium.
When filter need clean, the cleaning agent liquid-feeding pump is inserted on the cleaning agent feed liquor valve 9, the cleaning agent feed liquor can be opened air magnetic valve 10 after finishing, and fully stirs, and is beneficial to clean.
The filter of present embodiment, design discharge 15m
3/ h contains F in the waste water
-, Cr
3+, Fe
2+, Ni
2+Plasma adopts the carbide slag neutralization, then by microporous film filter, and design microporous membrane aperture＜0.45 micron, tank diameter 1600mm selects 37.5m for use
2The microporous film filter of filter area, water outlet effect reach the secondary discharge standard in " Shanghai City integrated wastewater discharge standard ".Water outlet F stable content is about 5mg/l.Solved a fluorine-containing difficult problem that exceeds standard in this type of wastewater treatment water outlet.
Claims (5)
1. microporous film filter, comprise: tank body, the stainless steel card, the eptfe film filter bag, filter bag support cages bone, advance sour flexible valve, the backflow flexible valve, the backwash flexible valve, exhaust solenoid valve, it is characterized in that, the eptfe film filter bag is enclosed within on the filter bag support cages bone, by screw all filter bag support cages bones are fixed on the stainless steel card then, the stainless steel card is divided into two tank body, top is clear water zone, the bottom is the waste liquid district, the top, waste liquid district of tank body is provided with the acid discharge pipeline, and the tank body periphery is provided with into sour flexible valve, the backflow flexible valve, the backwash flexible valve, the exhaust solenoid valve valve.
2. microporous film filter as claimed in claim 1 is characterized in that, describedly advances sour flexible valve, the backflow flexible valve is located at lower end, the outside, tank body waste liquid district.
3. microporous film filter as claimed in claim 1 is characterized in that, described backwash flexible valve, exhaust solenoid valve valve are located at tank body waste liquid district outer upper end.
4. microporous film filter as claimed in claim 1 is characterized in that, also comprises: cleaning agent feed liquor valve, air magnetic valve, and cleaning agent feed liquor valve, air magnetic valve are located at the distolateral place of taper of tank body respectively.
5. as the arbitrary described microporous film filter of claim 1 to 4, it is characterized in that described tank body lower end is tapered, tapered bottom end is provided with the spoil disposal flexible valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200778422U CN201143396Y (en) | 2007-12-29 | 2007-12-29 | Millipore film filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200778422U CN201143396Y (en) | 2007-12-29 | 2007-12-29 | Millipore film filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201143396Y true CN201143396Y (en) | 2008-11-05 |
Family
ID=40080269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200778422U Expired - Lifetime CN201143396Y (en) | 2007-12-29 | 2007-12-29 | Millipore film filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201143396Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975376A (en) * | 2019-12-06 | 2020-04-10 | 广西广宇水资源技术开发有限公司 | Microporous filter element pulse regeneration filtering method and device |
| TWI734659B (en) * | 2021-02-09 | 2021-07-21 | 上品綜合工業股份有限公司 | Fluororesin filter device, unit and its manufacturing method |
-
2007
- 2007-12-29 CN CNU2007200778422U patent/CN201143396Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975376A (en) * | 2019-12-06 | 2020-04-10 | 广西广宇水资源技术开发有限公司 | Microporous filter element pulse regeneration filtering method and device |
| CN110975376B (en) * | 2019-12-06 | 2021-03-30 | 广西广宇水资源技术开发有限公司 | Microporous filter element pulse regeneration filtering method and device |
| TWI734659B (en) * | 2021-02-09 | 2021-07-21 | 上品綜合工業股份有限公司 | Fluororesin filter device, unit and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081105 Effective date of abandoning: 20071229 |