CN113713475A - Internal and external washing type micro-filter - Google Patents
Internal and external washing type micro-filter Download PDFInfo
- Publication number
- CN113713475A CN113713475A CN202110893270.XA CN202110893270A CN113713475A CN 113713475 A CN113713475 A CN 113713475A CN 202110893270 A CN202110893270 A CN 202110893270A CN 113713475 A CN113713475 A CN 113713475A
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- Prior art keywords
- rotary drum
- flushing
- internal
- filter
- frame
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 43
- 238000011010 flushing procedure Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000010802 sludge Substances 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 28
- 239000012535 impurity Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/82—Means for pressure distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/36—Filtering elements containing a rotating housing construction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an internal and external washing type micro-filter, which comprises a frame, a water inlet, a rotary drum, a filter element and a water outlet, wherein the rotary drum is arranged inside the frame, an internal and external washing mechanism is arranged in an inner cavity of the frame, a sludge discharge mechanism is arranged below an internal washing pipeline, and a pressure balance mechanism is arranged below the inner cavity of the frame. According to the internal and external flushing type micro-filter, the impact of flushing acting force on the filter element is reduced by adding the built-in flushing pipeline and adopting a mode of combining external flushing and internal flushing, and sludge is effectively flushed away from the surface of the filter element; the flow blocking plate is additionally arranged to separate the water outlet of the equipment from the filter cavity, and the pressure balancing area is arranged to reduce the pressure of the water inlet and outlet pressure difference on the filter element, so that the service life of the filter element is prolonged, and the continuous operation period of the equipment is prolonged.
Description
Technical Field
The invention relates to the technical field of microstrainers, in particular to an internal and external washing type microstrainer.
Background
In the field of sewage treatment, a micro-filter filters impurities such as suspended matters and particles in liquid through filter elements in the forms of filter cloth, filter screen, filter disc and the like on a filter cylinder so as to meet the requirement of effluent quality. In order to keep the micro-filter operating continuously and normally, impurities attached to the inside of the filter element after filtration need to be removed, and the impurities are ensured not to enter water again along with the rotation of the filter cylinder. Therefore, whether the attached impurities can be efficiently removed and the filter element can be protected from being damaged is one of important guarantees for the normal work of the micro-filter.
The existing micro-filter is generally sprayed and washed to the filter element by a washing pipeline arranged outside the filter cylinder, and the impurities falling after washing are discharged outside the micro-filter after being collected. However, most of spray water in the external washing pipeline cannot penetrate through the filter screen, only a small amount of water penetrates through the screen and only the mesh is dredged, most of sludge still adheres to the filter screen and is brought into water to be filtered along with the rotation of the filter screen, so that suspended matters in the water are enriched (for example, the SS concentration of inlet water is 20mg/L, the SS concentration in the enriched filter screen reaches 100mg/L and is enriched by 5 times), the treatment flux of the filter element is smaller and smaller, and the filtering capacity is greatly reduced. To achieve the purpose of washing sludge, larger washing pressure must be applied, so that not only is the energy consumption higher, but also a downward acting force is applied to the filter element by an external washing mode, and after long-term operation, the strength of the filter element is reduced, the filter element is easy to damage, and the filtering efficiency is reduced. And the water outlet of the existing micro-filter is positioned below the equipment and is directly communicated with the inner cavity of the equipment, the pressure difference of the water inlet and the water outlet is larger, the pressure of the water flow discharged by self weight in the rotary drum is larger, and the pressure bearing of the filter element is larger.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an internal and external washing type micro-filter, which solves the problems that most water in an external washing pipeline cannot penetrate through a filter screen, only a small amount of water penetrates through a net with a certain penetration rate, only meshes are dredged, most sludge still adheres to the filter screen, a downward acting force is applied to a filter element by an external washing mode, the strength of the filter element is reduced after long-term operation, the filter element is easy to damage, and the filtering efficiency is reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme: an internal and external washing type micro-filter comprises a frame, a water inlet, a rotary drum, a filter element and a water outlet, wherein the rotary drum is arranged inside the frame, an internal and external washing mechanism is arranged in an inner cavity of the frame, a sludge discharge mechanism is arranged below the internal and external washing mechanism, and a pressure balance mechanism is arranged below the inner cavity of the frame.
As a further scheme of the invention: the inner and outer flushing mechanism comprises an outer flushing pipeline arranged above the rotary drum and an inner flushing pipeline arranged above the inner part of the rotary drum, the outer flushing pipeline is downwards provided with uniformly distributed outer flushing ports, and the inner flushing pipeline is upwards provided with uniformly distributed inner flushing ports.
As a further scheme of the invention: the sludge discharge mechanism comprises a sludge collecting hopper arranged below the inner flushing pipeline, and a sludge output pipeline is communicated below the sludge collecting hopper.
As a further scheme of the invention: the pressure balance mechanism comprises a flow baffle plate arranged between the rotary drum and the water outlet, an overflow plate and a vertical flow baffle plate are respectively and transversely arranged between the water inlet and the rotary drum, a bottom plate is arranged below the rotary drum, an overflow area is formed between the bottom plate and the frame, and an overflow port is formed in one side of the overflow area.
As a further scheme of the invention: the inner flushing port is arranged laterally, and the direction of flushing liquid flow is opposite to the rotating direction of the rotary drum.
As a further scheme of the invention: the inner cavity of the frame is provided with a driving mechanism for driving the rotary drum to rotate, and two sides of the front end of the frame are symmetrically provided with riding wheels for supporting the rotary drum to rotate.
As a further scheme of the invention: a pressure balance area is formed between the flow blocking plate and the rotary drum, and the liquid level of the water outlet is close to the liquid level in the rotary drum so as to reduce the pressure difference of inlet and outlet water.
As a further scheme of the invention: inner flushing port and outer flushing portThe washing ports are respectively and uniformly distributed on the surfaces of the inner washing pipeline and the outer washing pipeline, in order to achieve the best washing effect and reduce energy consumption, the outer washing ports are uniformly arranged, the distance range between the adjacent washing ports is 50-70mm, the spraying angle range of the washing ports is 50-70 degrees, the spraying effective range is 3500-4000 degrees2The inner flushing ports are uniformly arranged, and the distance range between adjacent flushing ports is 150-160mm2The spraying angle range of the flushing port is 50-70 degrees, and the spraying effective range is 3500-4000mm2。
As a further scheme of the invention: the working method of the micro-filter comprises the following steps:
step one, when the internal flushing type micro-filter works, liquid enters a rotary drum through a water inlet, the rotary drum is driven to rotate through a driving mechanism, impurities are intercepted through a filter element, clean water is sprayed to the filter element through an external flushing port and an internal flushing port simultaneously, and the purified liquid flows into a water outlet from the top end of a flow resistance plate and finally flows out of the micro-filter;
and step two, when the filter element is blocked and water can not be discharged, the liquid level in the rotary drum rises to reach the top end of the overflow plate so as to exceed the top end of the overflow plate, and the liquid enters the overflow area and flows out through the overflow port.
Compared with the prior art, the invention has the following beneficial effects: by adding the built-in flushing pipeline and adopting a mode of combining external flushing and internal flushing, the impact of flushing acting force on the filter element is reduced, and sludge is effectively flushed away from the surface of the filter element; the flow blocking plate is additionally arranged to separate the water outlet of the equipment from the filter cavity, and the pressure balancing area is arranged to reduce the pressure of the water inlet and outlet pressure difference on the filter element, so that the service life of the filter element is prolonged, and the continuous operation period of the equipment is prolonged.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
fig. 2 is a side view of the structure of the present invention.
In the figure: 1. a frame; 2. a water inlet; 3. a rotating drum; 4. a filter element; 5. flushing the pipeline; 6. an outer flushing port; 7. an inner flushing pipe; 8. an inner flushing port; 9. a sludge collection hopper; 10. a sludge output pipeline; 11. a water outlet; 12. a spoiler; 13. a pressure equalization zone; 14. a drive mechanism; 15. an overflow plate; 16. an overflow area; 17. an overflow port; 18. a riding wheel; 19. a flow baffle is vertically arranged; 20. a base plate.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an inside and outside washout microstrainer, including frame 1, water inlet 2, rotary drum 3, filter core 4, delivery port 11, rotary drum 3 sets up in the inside of frame 1, frame 1 inner chamber is provided with inside and outside washing mechanism, inside and outside washing mechanism below is provided with mud discharge mechanism, the below of frame 1 inner chamber is provided with pressure balance mechanism, interior washout microstrainer during operation, liquid gets into rotary drum 3 through water inlet 2, rotary drum 3 passes through actuating mechanism 14 drive and rotates, intercept impurity through filter core 4, outer washing mouth 6, interior washing mouth 8 spray the water purification to filter core 4 simultaneously, liquid after the purification flows into delivery port 11 from baffling board 12 tops, at last outflow microstrainer.
The internal and external flushing mechanism comprises an external flushing pipeline 5 arranged above the rotary drum 3 and an internal flushing pipeline 7 arranged above the interior of the rotary drum 3, wherein the external flushing pipeline 5 is downwards provided with uniformly distributed external flushing ports 6, and the internal flushing pipeline 7 is upwards provided with uniformly distributed internal flushing ports 8.
The sludge discharge mechanism comprises a sludge collection hopper 9 arranged below the inner flushing pipeline 7, a sludge output pipeline 10 is communicated below the sludge collection hopper 9, sludge produced by cleaning can be conveniently discharged, and secondary blockage is prevented.
The pressure balance mechanism comprises a flow baffle 12 arranged between a rotary drum 3 and a water outlet 11, an overflow plate 15 and a vertical flow baffle 19 are respectively and transversely arranged between a water inlet 2 and the rotary drum 3, a bottom plate 20 is arranged below the rotary drum 3, an overflow area 16 is formed between the bottom plate 20 and the frame 1, an overflow port 17 is formed in one side of the overflow area 16, when the filter element 4 is blocked and cannot discharge water, the liquid level in the rotary drum 3 rises to reach and exceed the top end of the overflow plate 15, and the liquid enters the overflow area 16 and flows out through the overflow port 17.
The inner flushing port 8 is arranged laterally, the flow direction of flushing liquid is opposite to the rotation direction of the rotary drum 3, and the flushing is carried out in the opposite direction, so that the cleaning effect is better.
The inner cavity of the frame 1 is provided with a driving mechanism 14 for driving the rotary drum 3 to rotate, two sides of the front end of the frame 1 are symmetrically provided with riding wheels 18 for supporting the rotary drum 3 to rotate, and the rotary drum 3 is assisted to rotate through the riding wheels 18.
A pressure balance area 13 is formed between the flow baffle 12 and the rotary drum 3, and the liquid level of the water outlet 11 is close to the liquid level in the rotary drum 3 so as to reduce the pressure difference of inlet and outlet water.
The inner washing ports 8 and the outer washing ports 6 are respectively and uniformly distributed on the surfaces of the inner washing pipeline 7 and the outer washing pipeline 5, in order to achieve the best washing effect and reduce energy consumption, the outer washing ports 6 are uniformly arranged, the distance range between every two adjacent washing ports is 50-70mm, the spraying angle range of the washing ports is 50-70 degrees, and the spraying effective range is 3500-4000mm2The inner flushing ports 8 are uniformly arranged, and the distance range between adjacent flushing ports is 150-160mm2The spraying angle range of the flushing port is 50-70 degrees, and the spraying effective range is 3500-4000mm2。
The working method of the micro-filter comprises the following steps:
step one, when the internal flushing type micro-filter works, liquid enters the rotary drum 3 through the water inlet 2, the rotary drum 3 is driven to rotate through the driving mechanism 14, impurities are intercepted through the filter element 4, the purified water is sprayed to the filter element 4 through the external flushing port 6 and the internal flushing port 8 simultaneously, the purified liquid flows into the water outlet 11 from the top end of the flow baffle plate 12 and finally flows out of the micro-filter;
and step two, when the filter element 4 is blocked and can not discharge water, the liquid level in the rotary drum 3 rises to reach and exceed the top end of the overflow plate 15, and the liquid enters the overflow area 16 and flows out through the overflow port 17.
When the internal flushing type micro-filter works, liquid enters the rotary drum 3 through the water inlet 2, the rotary drum 3 is driven to rotate through the driving mechanism 14, impurities are intercepted through the filter element 4, the external flushing port 6 and the internal flushing port 8 spray purified water to the filter element 4 simultaneously, and the purified liquid flows into the water outlet 11 from the top end of the flow baffle plate 12 and finally flows out of the micro-filter; when the filter element 4 is blocked and can not discharge water, the liquid level in the rotary drum 3 rises to reach and exceed the top end of the overflow plate 15, and the liquid enters the overflow area 16 and flows out through the overflow port 17.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides an inside and outside washout microstrainer, includes frame (1), water inlet (2), rotary drum (3), filter core (4), delivery port (11), its characterized in that: the rotary drum (3) is arranged in the frame (1), an inner cavity of the frame (1) is provided with an inner and outer washing mechanism, a sludge discharge mechanism is arranged below the inner and outer washing mechanism, and a pressure balance mechanism is arranged below the inner cavity of the frame (1).
2. An internal and external wash-down microfilter as claimed in claim 1, wherein: the inner and outer flushing mechanism comprises an outer flushing pipeline (5) arranged above the rotary drum (3) and an inner flushing pipeline (7) arranged above the inner part of the rotary drum (3), the outer flushing pipeline (5) is downwards provided with outer flushing ports (6) which are uniformly distributed, and the inner flushing pipeline (7) is upwards provided with inner flushing ports (8) which are uniformly distributed.
3. An internal and external wash-down microfilter as claimed in claim 1, wherein: the sludge discharge mechanism comprises a sludge collecting hopper (9) arranged below the inner flushing pipeline (7), and a sludge output pipeline (10) is communicated below the sludge collecting hopper (9).
4. An internal and external wash-down microfilter as claimed in claim 1, wherein: the pressure balance mechanism comprises a flow baffle (12) arranged between a rotary drum (3) and a water outlet (11), overflow plates (15) and a vertical flow baffle plate (19) are respectively and transversely arranged between a water inlet (2) and the rotary drum (3), a bottom plate (20) is arranged below the rotary drum (3), an overflow area (16) is formed between the bottom plate (20) and the frame (1), and an overflow port (17) is formed in one side of the overflow area (16).
5. An internal and external wash-down microfilter as claimed in claim 1, wherein: the inner flushing port (8) is arranged laterally, and the direction of flushing liquid flow is opposite to the rotating direction of the rotary drum (3).
6. An internal and external wash-down microfilter as claimed in claim 1, wherein: the inner cavity of the frame (1) is provided with a driving mechanism (14) for driving the rotary drum (3) to rotate, and two sides of the front end of the frame (1) are symmetrically provided with riding wheels (18) for supporting the rotary drum (3) to rotate.
7. An internal and external wash-down microfilter as claimed in claim 1, wherein: a pressure balance area (13) is formed between the flow blocking plate (12) and the rotary drum (3).
8. An internal and external wash-down microfilter as claimed in claim 2, wherein: the inner washing opening (8) and the outer washing opening (6) are respectively and uniformly distributed on the surfaces of the inner washing pipeline (7) and the outer washing pipeline (5).
9. An internal and external wash-down microfilter as claimed in claim 1, wherein: the working method of the micro-filter comprises the following steps:
step one, when the internal flushing type micro-filter works, liquid enters a rotary drum (3) through a water inlet (2), the rotary drum (3) is driven to rotate through a driving mechanism (14), impurities are intercepted through a filter element (4), clean water is sprayed to the filter element (4) through an external flushing port (6) and an internal flushing port (8) simultaneously, the purified liquid flows into a water outlet (11) from the top end of a flow blocking plate (12), and finally flows out of the micro-filter;
and step two, when the filter element (4) is blocked and can not discharge water, the liquid level in the rotary drum (3) rises to reach the top end of the overflow plate (15) so as to exceed the top end of the overflow plate, and the liquid enters the overflow area (16) and flows out through the overflow port (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893270.XA CN113713475A (en) | 2021-08-04 | 2021-08-04 | Internal and external washing type micro-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893270.XA CN113713475A (en) | 2021-08-04 | 2021-08-04 | Internal and external washing type micro-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113713475A true CN113713475A (en) | 2021-11-30 |
Family
ID=78674876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110893270.XA Pending CN113713475A (en) | 2021-08-04 | 2021-08-04 | Internal and external washing type micro-filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113713475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057504A (en) * | 2022-06-29 | 2022-09-16 | 山东通广环保设备有限公司 | Novel built-in back flush micro-filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197407A (en) * | 1996-05-31 | 1998-10-28 | 东丽株式会社 | Filter cloth and filter |
| CN105289079A (en) * | 2015-11-20 | 2016-02-03 | 四川北方硝化棉股份有限公司 | Roller sieve filtering device for sludge belt filter |
| CN209848462U (en) * | 2019-03-28 | 2019-12-27 | 江苏普利斯环保科技有限公司 | Precision filter with easily replaced filter element |
-
2021
- 2021-08-04 CN CN202110893270.XA patent/CN113713475A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197407A (en) * | 1996-05-31 | 1998-10-28 | 东丽株式会社 | Filter cloth and filter |
| CN105289079A (en) * | 2015-11-20 | 2016-02-03 | 四川北方硝化棉股份有限公司 | Roller sieve filtering device for sludge belt filter |
| CN209848462U (en) * | 2019-03-28 | 2019-12-27 | 江苏普利斯环保科技有限公司 | Precision filter with easily replaced filter element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057504A (en) * | 2022-06-29 | 2022-09-16 | 山东通广环保设备有限公司 | Novel built-in back flush micro-filter |
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Application publication date: 20211130 |