CN211987360U - Back-flushing bag type filter - Google Patents
Back-flushing bag type filter Download PDFInfo
- Publication number
- CN211987360U CN211987360U CN202020356840.2U CN202020356840U CN211987360U CN 211987360 U CN211987360 U CN 211987360U CN 202020356840 U CN202020356840 U CN 202020356840U CN 211987360 U CN211987360 U CN 211987360U
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- China
- Prior art keywords
- filter
- bag
- pipe
- shell
- filter housing
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- 238000011010 flushing procedure Methods 0.000 title claims description 12
- 238000004080 punching Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000008213 purified water Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims 1
- 239000012065 filter cake Substances 0.000 abstract description 18
- 239000012535 impurity Substances 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 5
- 239000011550 stock solution Substances 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000003818 cinder Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003747 fuel oil additive Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Landscapes
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Abstract
The utility model relates to a bag filter field discloses back flush bag filter, including filter housing, filter housing lower part shape is the toper, and filter housing's lower part side sets up stoste entry and raffinate discharge port respectively, and filter housing's lower part bottom sets up row cinder notch, and filter housing's upper portion side is seted up and is pressed row mouth, and filter housing top sets up gas vent and overflow pipe, and filter housing is inside to set up a plurality of bag filter cores, and a plurality of bag filter cores fall into at least two groups. The utility model can filter the stock solution containing impurities in the filter shell, and the impurities form solid filter cakes to be discharged; the bag-type filter element can be subjected to back blowing, so that frequent manual uncovering for replacing the filter bag is avoided, and pollution and harm to human bodies and the environment are eliminated; the labor is reduced, the labor cost is reduced, automatic control can be realized by matching a differential pressure sensor, and the labor cost is further reduced.
Description
Technical Field
The utility model relates to a bag filter field, concretely relates to back flush bag filter.
Background
Bag filters are widely used in the petrochemical field, such as for removing activated carbon or catalysts, removing scale from water pipes; clarifying the liquid; filtering the acid liquor, the alkali liquor and the solvent; filtering the emulsion and dispersion; filtering the colloid in the resin; filtering lubricating oil and fuel oil additives; recovering petroleum; amine liquid, glycol liquid filtration, and the like.
Traditional bag filter mainly comprises parts such as filter cylinder, filter cylinder lid and quick-open mechanism, stainless steel filter bag reinforcing mesh, and the filtrating flows into the filter bag by the side inlet tube of filter casing, and the filter bag itself is the device in strengthening the basket, and the required fineness grade's of liquid infiltration filter bag can obtain qualified filtrating, and impurity particle is intercepted outside the filter bag by the filter bag, reaches certain content when impurity, and the manual work is opened the lid, takes out the filter bag, changes new filter bag.
And in the face of present increasingly complicated ring mirror and high-cost manual work, traditional bag filter need long-term manual work to uncap the clear volume filter core, and the material all has magnetism harmful on the one hand, causes the influence to the health, and on the other hand, the filter bag of abandoning also is difficult to handle, causes the destruction to the environment, and the cost of labor is also high, and enterprise's burden is heavier.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides a back flush bag filter, the problem of solution is among the prior art, and traditional bag filter needs artifical regular uncapping to wash the filter core, changes the filter bag, causes harm to the person and environment, also aggravates the recruitment cost of enterprise.
For solving the technical problem, the utility model provides a following technical scheme:
the backwashing bag filter comprises a filter shell, wherein the lower part of the filter shell is conical, a raw liquid inlet and a residual liquid outlet are respectively arranged on the side surface of the lower part of the filter shell, a slag discharge port is arranged at the bottom end of the lower part of the filter shell, a pressure discharge port is arranged on the side surface of the upper part of the filter shell, an exhaust port and an overflow pipe are arranged at the top of the filter shell, a plurality of bag-type filter elements are arranged in the filter shell and divided into at least two groups, the bag-type filter elements are vertically arranged and comprise a central pipe, a punching pipe, reinforcing vertical bars and filter cloth, the punching pipe is sleeved outside the central pipe, the upper end and the lower end of the punching pipe are sealed, the outer peripheral surface of the punching pipe is provided with an inlet hole, the reinforcing vertical bars are uniformly fixed on the periphery of the punching pipe at intervals, the, the upper end of the central pipe is connected with collecting pipes, each collecting pipe is respectively connected with a main pipe positioned outside the shell of the filter, one end of each main pipe is provided with a purified water outlet, the other end of each main pipe is provided with a back flushing port, and the filter further comprises valves for controlling the on-off of each pipeline and each inlet and outlet.
Preferably, the diameter of the bag-type filter element is 85-90 mm.
Preferably, the filter cloth is made of PP or PVDF or PTFE.
Preferably, the filter cloth is woven from monofilaments or multifilaments.
The working principle is as follows:
and (3) filtering: the raw liquid to be filtered enters the filter shell from the raw liquid inlet, the filter shell is filled with the raw liquid, the exhaust port and the overflow pipe are closed, the filtration is started, and impurities in the filter shell are outside the filter cloth and surround the bag-type filter elements to form filter cakes;
and (3) pressing and discharging: compressed air enters the filter shell through the pressure discharge port, the volume of the filter shell is compressed, and purified water penetrating through the filter cloth enters the central tube from the lower end of the central tube, enters the collecting tube from the upper end of the central tube, enters the main tube through the collecting tube and finally exits from the purified water outlet of the main tube; meanwhile, liquid outside the filter cloth flows back to the stock solution storage container through a residual liquid outlet, and the filter cake extrudes water under the compression action of compressed air to form a dry filter cake;
back flushing: compressed air enters from the back flushing port, passes through the main pipe, the collecting pipe and the central pipe, enters the punching pipe, shatters the filter cake layer and falls off, and is discharged through the slag discharge port at the bottom.
The utility model has the advantages of compared with the prior art: the raw liquid containing impurities can be filtered in the filter shell, and the impurities form solid filter cakes to be discharged; the bag-type filter element can be subjected to back blowing, so that frequent manual uncovering for replacing the filter bag is avoided, and pollution and harm to human bodies and the environment are eliminated; the labor is reduced, the labor cost is reduced, automatic control can be realized by matching a differential pressure sensor, and the labor cost is further reduced; the bag-type filter element is formed by taking the punching pipe and the reinforcing vertical bars as a central framework, and the bag-type filter element, the filter cloth and the central pipe are simple in structure and low in cost, and meanwhile, the back flushing effect is good, the filter cake is easy to smash, and the filter cake is easier to fall off.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a cross-sectional view of the filter housing of the present invention;
FIG. 3 is a front view of the bag filter of the present invention;
fig. 4 is a cross-sectional view of the bag-type filter element of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-4, a backwashing bag filter includes a filter housing 1, the lower portion of the filter housing 1 is conical, the lower side of the filter housing 1 is provided with a raw liquid inlet 2 and a residual liquid outlet 3, the lower bottom of the filter housing 1 is provided with a slag discharge port 4, the upper side of the filter housing 1 is provided with a pressure discharge port 5, the top of the filter housing 1 is provided with an exhaust port 6 and an overflow pipe 7, the filter housing 1 is internally provided with a plurality of bag-type filter elements 8, the bag-type filter elements 8 are divided into at least two groups, the bag-type filter elements 8 are vertically arranged, the bag-type filter elements 8 include a central pipe 9, a punching pipe 10, reinforcing vertical bars 11 and filter cloth 12, the punching pipe 10 is sleeved outside the central pipe 9, the upper and lower ends of the punching pipe 10 are sealed, the outer peripheral surface is provided with inlet holes for, the reinforced vertical bars 11 can prevent the filter cloth 12 and the punching pipes 10 from being completely stuck, the filter cakes are easy to bridge and form filter cakes more easily, meanwhile, the filter cakes are also easy to be broken and fall off by vibration during back flushing, the punching pipes 10 and the reinforced vertical bars 11 jointly form a central framework, compared with the traditional central framework, the central framework is simple in structure, easy to manufacture and low in cost, the filter cloth 12 is coated and fixed outside the reinforced vertical bars 11 and the punching pipes 10 and can be fixed through clamps or other modes, the lower end of the central pipe 9 is communicated with the inner cavity of the punching pipes 10, the upper end of the central pipe 9 is connected with the collecting pipes 13, each collecting pipe 13 is respectively connected with the main pipe 14 outside the filter shell 1, one end of the main pipe 14 is provided with a purified water outlet 15, the other end of the main pipe is provided with a back flushing port 16.
In addition, the diameter of the bag-type filter element 8 is 85-90 mm.
In addition, the filter cloth 12 is made of PP or PVDF or PTFE, and the precision can reach 1 micron.
In addition, the filter cloth 12 is woven from monofilament or multifilament yarns and can be repeatedly rinsed compared to other needle punched felts.
The working principle is as follows:
and (3) filtering: the raw liquid to be filtered enters the filter shell 1 from the raw liquid inlet 2, the raw liquid is filled in the filter shell 1, the exhaust port 6 and the overflow pipe 7 are closed, the filtration is started, and impurities in the filter shell 1 form filter cakes outside the filter cloth 12 and around the bag-type filter elements 8;
and (3) pressing and discharging: compressed air enters the filter shell 1 through the pressure discharge port 5, the volume of the filter shell 1 is compressed, and pure water penetrating through the filter cloth 12 enters the central tube 9 from the lower end of the central tube 9, enters the collecting tube 13 from the upper end of the central tube 9, enters the main tube 14 through the collecting tube 13 and finally exits from the pure water outlet 15 of the main tube 14; meanwhile, the liquid outside the filter cloth 12 flows back to the stock solution storage container through a residual liquid outlet, and the filter cake extrudes water under the compression action of compressed air to form a dry filter cake;
back flushing: compressed air enters from a back flushing port 16, enters into the punching pipe 10 through the main pipe 14, the collecting pipe 13 and the central pipe 9, shatters and falls off the filter cake layer, and is discharged through a slag discharging port 4 at the bottom.
The utility model can filter the stock solution containing impurities in the filter shell, and the impurities form solid filter cakes to be discharged; the bag-type filter element can be subjected to back blowing, so that frequent manual uncovering for replacing the filter bag is avoided, and pollution and harm to human bodies and the environment are eliminated; the labor is reduced, the labor cost is reduced, automatic control can be realized by matching a differential pressure sensor, and the labor cost is further reduced; the bag-type filter element is formed by taking the punching pipe and the reinforcing vertical bars as a central framework, and the bag-type filter element, the filter cloth and the central pipe are simple in structure and low in cost, and meanwhile, the back flushing effect is good, the filter cake is easy to smash, and the filter cake is easier to fall off.
In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The backwash bag filter comprises a filter shell, the lower part of the filter shell is conical, and the backwash bag filter is characterized in that: the filter comprises a filter shell, wherein a raw liquid inlet and a residual liquid outlet are respectively arranged on the side surface of the lower part of the filter shell, a slag discharge port is arranged at the bottom end of the lower part of the filter shell, a pressure discharge port is formed in the side surface of the upper part of the filter shell, an exhaust port and an overflow pipe are arranged at the top part of the filter shell, a plurality of bag-type filter elements are arranged in the filter shell and divided into at least two groups, the bag-type filter elements are vertically arranged and comprise a central pipe, a punching pipe, reinforcing vertical bars and filter cloth, the punching pipe is sleeved outside the central pipe, the upper end and the lower end of the punching pipe are both closed, the outer peripheral surface of the punching pipe is provided with an inlet hole, the reinforcing vertical bars are uniformly fixed on the periphery of the punching pipe at intervals, the filter cloth covers the reinforcing vertical bars and the punching pipe, the, one end of the main pipe is provided with a purified water outlet, and the other end of the main pipe is provided with a back flushing port.
2. The backwash bag filter as defined in claim 1 wherein: the diameter of the bag-type filter element is 85-90 mm.
3. The backwash bag filter as defined in claim 1 wherein: the filter cloth is made of PP or PVDF or PTFE.
4. The backwash bag filter as defined in claim 1 wherein: the filter cloth is formed by weaving single filaments or single multifilament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356840.2U CN211987360U (en) | 2020-03-19 | 2020-03-19 | Back-flushing bag type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356840.2U CN211987360U (en) | 2020-03-19 | 2020-03-19 | Back-flushing bag type filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211987360U true CN211987360U (en) | 2020-11-24 |
Family
ID=73431099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020356840.2U Active CN211987360U (en) | 2020-03-19 | 2020-03-19 | Back-flushing bag type filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211987360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634030A (en) * | 2021-07-28 | 2021-11-12 | 武汉椿岭科技有限公司 | Universal connecting pipe assembly for clear liquid of filter and filter |
-
2020
- 2020-03-19 CN CN202020356840.2U patent/CN211987360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634030A (en) * | 2021-07-28 | 2021-11-12 | 武汉椿岭科技有限公司 | Universal connecting pipe assembly for clear liquid of filter and filter |
| CN113634030B (en) * | 2021-07-28 | 2022-07-19 | 武汉椿岭科技有限公司 | Universal connecting pipe assembly for clear liquid of filter and filter |
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| GR01 | Patent grant |