CN217437932U - Tubular micro-filtration membrane filtering device - Google Patents
Tubular micro-filtration membrane filtering device Download PDFInfo
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- CN217437932U CN217437932U CN202221168543.0U CN202221168543U CN217437932U CN 217437932 U CN217437932 U CN 217437932U CN 202221168543 U CN202221168543 U CN 202221168543U CN 217437932 U CN217437932 U CN 217437932U
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Abstract
The utility model belongs to the technical field of wastewater treatment, in particular to a tubular microfiltration membrane filtering device, which comprises a wastewater adjusting tank, a concentration tank, a membrane microfiltration component, a water producing tank and a membrane cleaning component, wherein wastewater passing through the wastewater adjusting tank enters the concentration tank, the concentration tank is connected with the membrane microfiltration component, the membrane microfiltration component is connected with the water producing tank, and the membrane microfiltration component is also connected with the membrane cleaning component; the membrane microfiltration component comprises a plurality of tubular microfiltration membranes connected in series, and each tubular microfiltration membrane comprises a pipe body and a microfiltration membrane arranged in the pipe body. Compared with the prior art, the utility model discloses simple structure need not additionally set up the sedimentation tank, can realize good waste water treatment effect moreover.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, in particular to tubular microfiltration membrane filter equipment.
Background
The existing wastewater (especially the wastewater containing heavy metals) treatment device has a complex structure, generally needs a sedimentation basin, and has a non-ideal treatment effect.
In view of this, the utility model aims at providing a tubular microfiltration membrane filter equipment, its simple structure does not need additionally to set up the sedimentation tank, can realize good waste water treatment effect moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to the above-mentioned defect of prior art, provide a tubular microfiltration membrane filter equipment, its simple structure need not additionally set up the sedimentation tank, can realize good waste water treatment effect moreover.
For solving the above-mentioned defect of prior art, the utility model provides a technical scheme is:
a tubular microfiltration membrane filtering device comprises a wastewater adjusting tank, a concentration tank, a membrane microfiltration component, a water production tank and a membrane cleaning component, wherein wastewater passing through the wastewater adjusting tank enters the concentration tank, the concentration tank is connected with the membrane microfiltration component, the membrane microfiltration component is connected with the water production tank, and the membrane microfiltration component is also connected with the membrane cleaning component;
the membrane microfiltration component comprises a plurality of tubular microfiltration membranes connected in series, and each tubular microfiltration membrane comprises a pipe body and a microfiltration membrane arranged in the pipe body.
As an improvement of the tubular microfiltration membrane filtration device of the present invention, the microfiltration membrane is embedded in the tube body.
As an improvement of the tubular microfiltration membrane filtration device, the membrane microfiltration component and the water production tank are connected with a backwashing tank, the backwashing tank is connected with compressed air through a gas pipeline, and the gas pipeline is provided with a first electromagnetic valve.
As an improvement of the tubular microfiltration membrane filtration device of the utility model, the membrane cleaning component comprises a pickling tank, a clear water tank and an alkali washing tank which are arranged in sequence, and the membrane cleaning component is connected with a drug washing pump.
As an improvement of the tubular microfiltration membrane filtration device of the utility model, the wastewater adjusting tank is provided with a lift pump between the concentration tanks.
As an improvement of the tubular microfiltration membrane filtration device of the utility model, the waste water adjusting tank is connected with the raw water.
As an improvement of the tubular microfiltration membrane filtration device, the concentration tank is connected with a first flowmeter and a first pressure gauge are arranged on the pipeline of the membrane microfiltration component.
As an improvement of the tubular microfiltration membrane filtration device of the utility model, the concentration tank and the circulating pump are arranged between the membrane microfiltration components.
As an improvement of the tubular microfiltration membrane filtration device, the membrane microfiltration component is connected with the concentration tank through a return pipe, the concentrated water of the membrane microfiltration component passes through the return pipe and flows back to the concentration tank, and the return pipe is provided with a second pressure gauge.
As an improvement of the tubular microfiltration membrane filtration device, the membrane microfiltration component is provided with a second electromagnetic valve and a second flowmeter on the connecting pipeline of the water production tank.
Compared with the prior art, the utility model discloses a waste water adjustment tank, enriched tank, membrane microfiltration subassembly, product basin and membrane washing subassembly, during waste water through the waste water adjustment tank enters into the enriched tank, carry out effectual filtration with water transport to the membrane microfiltration subassembly through the circulating pump again, get into after having filtered and produce the basin, the membrane washing subassembly then can carry out effectual washing to the membrane microfiltration subassembly. Wherein, the membrane microfiltration subassembly includes a plurality of tubular microfiltration membrane, and tubular microfiltration membrane includes the body and sets up the microfiltration membrane in the body. The utility model discloses simple structure need not additionally set up the sedimentation tank, and the clear water behind tubular microfiltration membrane flows in and produces the basin, can discharge also can the retrieval and utilization again, and concentrated water flows back to concentrated pond and does not circulate constantly, increases along with concentration, and the filter-pressing is partly done to concentrated water discharge.
Drawings
The invention and its advantageous technical effects are described in further detail below with reference to the accompanying drawings and embodiments, in which:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1-2, the utility model provides a tubular microfiltration membrane filtration device, including waste water adjustment tank 1, concentration tank 2, membrane microfiltration subassembly 3, product water tank 4 and membrane cleaning subassembly 5, waste water through waste water adjustment tank 1 enters into concentration tank 2, concentration tank 2 is connected with membrane microfiltration subassembly 3, and is provided with circulating pump 6 between concentration tank 2 and the membrane microfiltration subassembly 3, membrane microfiltration subassembly 3 is connected with product water tank 4, membrane microfiltration subassembly 3 still is connected with membrane cleaning subassembly 5; the waste water adjusting tank 1 is connected with raw water.
The membrane microfiltration component 3 comprises a plurality of tubular microfiltration membranes, each tubular microfiltration membrane comprises a tube body 31 and a microfiltration membrane (not shown in the figure) arranged in the tube body 31, the microfiltration membrane is made of PVDF (polyvinylidene fluoride), the solid content of wastewater with high solid content can be treated by the membrane microfiltration component to reach 5% (weight ratio) 3, the chemical resistance is excellent, the pH value is 1-14, the service life is long, and the tubular microfiltration membrane is tough, corrosion-resistant and oxidation-resistant. PVDF has the characteristics of difficult blockage, wear resistance and corrosion resistance; the quality of the effluent is stable.
The working principle of the tubular microfiltration membrane is as follows: low pressure (0.7 to 7bar, 10 to 100psig) separation processes relying on membranes to cross-flow filter solids from solution by pressure exerted by the solution flowing across the membrane surface; the water flow flowing through the membrane surface can carry away the intercepted particles without gathering on the membrane surface.
Microfiltration membranes have the following advantages: the automatic water quality filter has high automation degree, is reliable in filtering water quality (absolute membrane filtration), is suitable for recycling and manufacturing high-purity water by RO or ion exchange, can run intermittently, does not need rapid sedimentation, reduces the addition of water treatment agents, and can increase the flow rate of the produced water by increasing the number of membranes.
The microfiltration membrane is embedded into the pipe body and is strongly combined with the pipe body, so that the microfiltration membrane can work under higher operating pressure and backwashing pressure to obtain extremely high solid impurity removal efficiency and membrane flux, and the floor area of the system is reduced.
A backwashing tank 7 is also connected between the membrane microfiltration component 3 and the water production tank 4. The backwashing tank 7 is connected with compressed air through a gas pipeline 11, the gas pipeline 11 is provided with a first electromagnetic valve 12, and the membrane microfiltration component 3 is backwashed through the compressed air.
The membrane cleaning assembly 5 comprises an acid washing tank 51, a clean water tank 52 and an alkali washing tank 53 which are arranged in sequence, and the membrane cleaning assembly 5 is connected with a drug washing pump 10.
A lift pump 8 is arranged between the wastewater adjusting tank 1 and the concentration tank 2.
A first flow meter 13 and a first pressure gauge 14 are arranged on the pipeline connecting the concentration tank 2 and the membrane microfiltration component 3.
The membrane microfiltration component 3 is also connected with the concentration tank 2 through a return pipe 15, concentrated water of the membrane microfiltration component 3 flows back into the concentration tank 2 through the return pipe 15, and a second pressure gauge 16 is arranged on the return pipe 15.
And a second electromagnetic valve 17 and a second flow meter 18 are arranged on a connecting pipeline of the membrane microfiltration component 3 and the water production tank 4.
In the utility model, the waste water adjusting tank 1 is mainly used for moderating water flow and water quality fluctuation; and (3) adjusting the pH according to the water quality, adding a quantitative NaOH solution to adjust the pH to 9-10, and adding a flocculating agent PAM flocculating agent to improve the precipitation speed and the filtration speed of particulate impurities.
As shown in fig. 2, the working principle of the present invention is: waste water enters the waste water adjusting tank 1 from a raw water inlet, water in the waste water adjusting tank 1 is conveyed to enter the concentration tank 2 through the lifting pump 8, and is conveyed to the membrane microfiltration component 3 through the circulating pump 6, and the solid intercepted by the membrane is allowed to be concentrated to 1-5% (by weight). The sludge at the bottom of the thickening tank 2 flows by gravity to a sludge thickening tank.
In the embodiment, 4 branch type microfiltration membranes are connected in series for use, water filtered by the 4 branch type microfiltration membranes enters the water production tank 4 after passing through the backwashing tank 7, and concentrated water flows back to the concentration tank.
The utility model is provided with the backwashing tank 7, and the membrane microfiltration component 3 is backwashed by compressed air, wherein the backwashing period is 2 hours/time of membrane filtration work, and the backwashing time is 30-60 seconds; the purpose of the backwash is to prevent excessive solid debris from accumulating on the membrane surface.
After the microfiltration membrane works for a period of time, the microfiltration membrane needs to be cleaned periodically with a cleaning period of 1 time per week in consideration of membrane flux and water production cleanliness. The cleaning process of the membrane is as follows:
(1) the drug washing pump 10 transports the clean water to the membrane micro-filtration component 3 to wash the surface of the membrane;
(2) cleaning: a drug washing pump 10 passes a cleaning solution (acid solution or alkali solution) through the surface of the membrane and is soaked in the cleaning solution for 1-4 hours;
(3) the drug washing pump 10 transports the clean water to the membrane micro-filtration component 3 and washes the water to be neutral.
Cleaning time: generally, the time is 3 to 8 hours: severe fouling, which took 24 hours.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and structures of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A tubular microfiltration membrane filtration device characterized in that: the device comprises a wastewater adjusting tank, a concentration tank, a membrane microfiltration component, a water production tank and a membrane cleaning component, wherein wastewater passing through the wastewater adjusting tank enters the concentration tank, the concentration tank is connected with the membrane microfiltration component, the membrane microfiltration component is connected with the water production tank, and the membrane microfiltration component is also connected with the membrane cleaning component;
the membrane microfiltration component comprises a plurality of tubular microfiltration membranes connected in series, and each tubular microfiltration membrane comprises a pipe body and a microfiltration membrane arranged in the pipe body.
2. The tubular microfiltration membrane filter device according to claim 1 wherein: the micro-filtration membrane is embedded in the tube body.
3. The tubular microfiltration membrane filtration device according to claim 1, wherein: the membrane microfiltration subassembly with still be connected with the backwash jar between the product basin, the backwash jar has compressed air through gas piping connection, be provided with first solenoid valve on the gas piping.
4. The tubular microfiltration membrane filtration device according to claim 1, wherein: the membrane cleaning assembly comprises an acid washing tank, a clear water tank and an alkali washing tank which are sequentially arranged, and the membrane cleaning assembly is connected with a medicine washing pump.
5. The tubular microfiltration membrane filtration device according to claim 1, wherein: and a lifting pump is arranged between the wastewater adjusting tank and the concentration tank.
6. The tubular microfiltration membrane filtration device according to claim 1, wherein: the waste water adjusting tank is connected with raw water.
7. The tubular microfiltration membrane filtration device according to claim 1, wherein: and a first flow meter and a first pressure gauge are arranged on a pipeline connecting the concentration tank and the membrane microfiltration component.
8. The tubular microfiltration membrane filtration device according to claim 1, wherein: and a circulating pump is arranged between the concentration tank and the membrane microfiltration component.
9. The tubular microfiltration membrane filtration device according to claim 1, wherein: the membrane microfiltration component is also connected with the concentration tank through a return pipe, concentrated water of the membrane microfiltration component flows back into the concentration tank through the return pipe, and a second pressure gauge is arranged on the return pipe.
10. The tubular microfiltration membrane filtration device according to claim 1, wherein: and a second electromagnetic valve and a second flowmeter are arranged on a connecting pipeline of the membrane microfiltration component and the water production tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221168543.0U CN217437932U (en) | 2022-05-16 | 2022-05-16 | Tubular micro-filtration membrane filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221168543.0U CN217437932U (en) | 2022-05-16 | 2022-05-16 | Tubular micro-filtration membrane filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217437932U true CN217437932U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221168543.0U Active CN217437932U (en) | 2022-05-16 | 2022-05-16 | Tubular micro-filtration membrane filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217437932U (en) |
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2022
- 2022-05-16 CN CN202221168543.0U patent/CN217437932U/en active Active
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