CN219272319U - Scraping blade type self-cleaning filter - Google Patents
Scraping blade type self-cleaning filter Download PDFInfo
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- CN219272319U CN219272319U CN202223572420.6U CN202223572420U CN219272319U CN 219272319 U CN219272319 U CN 219272319U CN 202223572420 U CN202223572420 U CN 202223572420U CN 219272319 U CN219272319 U CN 219272319U
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Abstract
The utility model discloses a scraping type self-cleaning filter, which relates to the technical field of filtering equipment and comprises a filter shell, a liquid inlet, a liquid outlet, a drain outlet and a filter screen cylinder arranged in the filter shell, wherein the filter screen cylinder is internally provided with a scraping type self-cleaning component, the scraping type self-cleaning component is driven by a driving piece and used for scraping the inner surface of the filter screen cylinder, the scraping type self-cleaning filter comprises a driving rod and a self-cleaning scraping piece, the driving end of the driving piece is connected with the driving rod, the self-cleaning scraping piece is connected to the driving rod, and the scraping end of the scraping piece faces the inner surface of the filter screen cylinder. According to the utility model, the self-cleaning scraping blade assembly is arranged in the wedge-shaped net filter screen barrel, so that the effect of removing materials on the filter screen barrel is achieved, the blocking of the filter screen barrel is reduced, the smooth circulation is ensured, and the effect of reducing the influence of the blocking of the materials on the filtering effect and the filtering speed is realized.
Description
Technical Field
The utility model relates to the technical field of filtering equipment, in particular to a scraping blade type self-cleaning filter.
Background
In the filtering equipment used in the solid-liquid separation treatment process, the wedge-shaped filter screen is often applied to a solid-liquid separation scene due to excellent performance. The filter holes on the wedge-shaped filter screen have the structural characteristics of small inlet and large outlet, when fluid filtering operation is carried out, when partial particles in the fluid enter the filter holes, the particle media can rapidly pass through the overflow holes due to the fact that the outlet size of the filter holes is larger than the inlet size, the effect of preventing the particle media in the fluid from being blocked inside the overflow holes can be achieved, and the continuous gap and V-shaped section structure of the wedge-shaped filter screen can greatly increase the water passing area, so that the filter screen is better in contact with an aquifer, and better filtering effect and filtering speed can be achieved compared with the common silk screen filter screen.
However, in the traditional wedge-shaped net filter, after a period of filtering, as the filtering holes on the filter net are blocked by materials, the pressure difference in the filter can be increased, the speed of liquid passing through the overflow holes of the wedge-shaped filter net can be slowed down, the filtering speed is reduced, and meanwhile, the blocking of the materials on the meshes of the wedge-shaped filter net can further reduce the filtering speed and can influence the filtering effect of the filter net barrel. In order to solve the influence caused by material blockage, the current common means is to adopt the back flushing effect to remove the material blocked on the meshes. However, some filters commonly used at present do not have a back flushing function or have a back flushing function but have high cost, for example, a filter element and a filter disclosed in patent grant publication No. CN101287401A do not have a back flushing function, and the problem of mesh blocking is difficult to solve, for example, an intelligent back flushing electromagnetic filter disclosed in patent grant publication No. CN207079045U adopts electromagnetism to realize back flushing, and the cost is greatly increased. Therefore, in order to avoid the defect of speed reduction and efficiency reduction caused by the increase of the internal pressure difference of the cylinder due to material blockage, the application provides a scraping type self-cleaning filter aiming at the situation that the conventional filter cannot perform back flushing or has poor back flushing effect.
Disclosure of Invention
Aiming at the problem in practical application, the utility model aims to provide a scraping blade type self-cleaning filter which can scrape materials on the inner surface of a filter screen cylinder, reduce the blockage of the filter screen cylinder and ensure the filtering effect of the filter screen cylinder, and the specific scheme is as follows:
the utility model provides a self-cleaning filter of doctor-bar formula, includes filter casing, sets up inlet, liquid outlet, drain on the filter casing and sets up the filter screen section of thick bamboo in the filter casing, be equipped with the self-cleaning subassembly of doctor-bar formula in the filter screen section of thick bamboo, wherein:
the scraping blade type self-cleaning component is driven by a driving piece and is used for scraping materials on the inner surface of the filter screen barrel, the scraping blade type self-cleaning component comprises a driving rod and a self-cleaning scraping blade, the driving end of the driving piece is connected with the driving rod, the driving rod is connected with the self-cleaning scraping blade, and the scraping end of the self-cleaning scraping blade faces the inner surface of the filter screen barrel.
Further, the self-cleaning scraping blade and the filter screen cylinder are arranged at intervals.
Further, the self-cleaning assembly of doctor-bar still includes the connecting rod, the connecting rod is connected actuating lever and self-cleaning doctor-bar are located the opposite both sides of actuating lever are equipped with two sets of the connecting rod, every group the connecting rod is equipped with a plurality of along the length direction of actuating lever.
Further, the filter screen cylinder is of a cylindrical structure with an open top, a wedge-shaped net enclosing the periphery of the filter screen cylinder and a closed bottom;
and the periphery of the filter screen cylinder is arranged at intervals with the inner surface of the filter shell.
Further, the filter screen cylinder top both sides are equipped with installation otic placode one, are equipped with in the filter casing with installation otic placode two of installation otic placode looks adaptation, the filter screen cylinder passes through installation otic placode one, installation otic placode two and adopts the nut locking to realize with the fixed of filter casing.
Further, a pressure sensor is arranged in the filter shell, and a controller is arranged beside the filter;
the controller is electrically connected with the pressure sensor and the driving piece.
Further, a cylinder cover is fixed at the top of the filter shell, and a sealing element is arranged at the joint of the cylinder cover and the filter shell;
the driving piece is fixed on the cylinder cover, and the cylinder cover is provided with a through hole for the driving rod to pass through.
Further, the inlet is offered in filter casing a side wall and is close to upper portion, the liquid outlet is offered in filter casing a side wall and is close to the lower part, the drain is located filter casing bottom, wherein:
the height of the liquid inlet is higher than that of the filter screen cylinder, and the liquid outlet is positioned on one side of the filter screen cylinder.
Further, the self-cleaning wiper blade is of a scraper type structure with a rectangular section.
Further, the self-cleaning wiper blade is of a scraper type structure with a triangular section.
Further, the self-cleaning scraping blade is of a scraper type structure with an arc-shaped section, and the radian of the arc-shaped structure is matched with the radian of the filter screen barrel.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the self-cleaning scraping blade assembly is arranged in the wedge-shaped net filter screen barrel, and the scraping blade is automatically driven to scrape the inner surface of the filter screen barrel, so that the effect of removing materials on the filter screen barrel is achieved, the blocking of the filter screen barrel is reduced, the smooth circulation is ensured, and the influence of the blocking of the materials on the filtering effect and the filtering speed is reduced.
Drawings
FIG. 1 is an overall schematic of an embodiment of the present utility model;
FIG. 2 is a schematic view of a self-cleaning blade according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a self-cleaning blade according to a second embodiment of the present utility model;
fig. 4 is a schematic structural view of a self-cleaning blade according to a third embodiment of the present utility model.
Reference numerals: 1. a filter housing; 2. a liquid inlet; 3. a liquid outlet; 4. a sewage outlet; 5. a filter screen cylinder; 6. a driving member; 7. a driving rod; 8. self-cleaning scraping blade; 9. a connecting rod; 10. installing an ear plate I; 11. installing a second ear plate; 12. a cylinder cover.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
As shown in fig. 1, the scraping type self-cleaning filter comprises a filter shell 1, a liquid inlet 2, a liquid outlet 3, a sewage outlet 4 which are arranged on the filter shell 1, and a filter screen cylinder 5 which is arranged in the filter shell 1. Wherein, the filter shell 1 is in a barrel-shaped structure, and the bottom end is in an annular structure; the liquid inlet 2 is formed in the side wall of the filter shell 1 and is close to the upper part, the liquid outlet 3 is formed in the side wall of the filter shell 1 and is close to the lower part, and the sewage outlet 4 is positioned at the bottom of the filter shell 1. And, the height of inlet 2 is higher than the height of filter screen section of thick bamboo 5, and liquid outlet 3 is located one side of filter screen section of thick bamboo 5.
The filter screen cylinder 5 is on the same central axis as the filter housing 1. The connection mode between the filter screen cylinder 5 and the filter shell 1 is as follows: the filter screen cylinder 5 top both sides are equipped with installation otic placode one 10, have seted up installation screw one along its vertical on the installation otic placode one 10, be equipped with on the filter casing 1 with installation otic placode two 11 of installation otic placode one 10 looks adaptation, have seted up installation screw two along its vertical on the installation otic placode two 11, the filter screen cylinder 5 runs through installation screw one on the installation otic placode one 10, installation screw two on the installation otic placode two 11 and adopts the nut locking to realize with the fixed of filter casing 1. By adopting the connection mode, the filter screen cylinder 5 is convenient to detach and replace from the filter.
More specifically, the filter screen cylinder 5 has a cylindrical structure with an open top, a wedge-shaped mesh surrounding the periphery, and a closed bottom. Thus, the liquid entering the filter housing 1 through the liquid inlet 2 enters the filter screen cylinder 5 through the open top of the filter screen cylinder 5, then the liquid filtered by the wedge-shaped net is discharged from the liquid outlet 3, and the dirt is discharged from the sewage outlet 4. And, and the filter screen 5 circumference sets up with the interval between the filter casing 1 internal surface, provides normal flowing back, blowdown space.
In order to avoid the defect of speed reduction and efficiency reduction caused by the increase of the cylinder internal pressure difference due to material blockage, in the present application, a scraping type self-cleaning component is arranged in the filter screen cylinder 5, specifically described as:
the scraping type self-cleaning component is driven by a driving piece 6, the driving piece 6 can adopt driving sources including but not limited to a motor, a motor and the like, a cylinder cover 12 is fixed on the top of the filter shell 1, the driving piece 6 is fixed on the cylinder cover 12, and the cylinder cover 12 is provided with a through hole for the driving rod 7 to pass through.
The scraping blade type self-cleaning component is used for scraping the inner surface of the filter screen barrel 5 and comprises a driving rod 7, a connecting rod 9 and a self-cleaning scraping blade 8, the driving end of the driving piece 6 penetrates through and is connected with the driving rod 7, the driving rod 7 is connected with the self-cleaning scraping blade 8 through the connecting rod 9, and the scraping end of the self-cleaning scraping blade 8 faces the inner surface of the filter screen barrel 5.
More specifically, two sets of connecting rods 9 are provided on opposite sides of the driving rod 7, and three connecting rods 9 are provided along the length direction of the driving rod 7. Two ends of the three connecting rods 9 are respectively connected with the driving rod 7 and the self-cleaning scraping blade 8. The connection mode of a plurality of connecting rods 9 is beneficial to improving the connection stability of the self-cleaning wiper blade 8.
As shown in fig. 2, the self-cleaning blade 8 has a blade structure with a rectangular cross section. The sharp part at the corner of the rectangular scraping plate is adopted to scrape the materials.
The self-cleaning subassembly of doctor-bar during operation: liquid enters from a liquid inlet 2 at the upper part of the wedge-shaped net filtering and digging barrel, after a period of filtering, the wedge-shaped net filtering net barrel 5 is automatically started to be driven at the top after the pressure difference becomes large, the driving piece 6 rotates to drive the self-cleaning scraping blade 8 through the connecting rod 9, and the inner surface of the filtering net barrel 5 is scraped, so that the material on the filtering net barrel is removed, the blockage of the filtering net barrel is reduced, and once the pressure difference is eliminated, the driving piece 6 stops driving.
And, the self-cleaning scraping blade 8 and the filter screen cylinder 5 are arranged at intervals. And the linear distance between the self-cleaning scraping blade 8 and the filter screen cylinder 5 is limited to be 1-2 cm. Therefore, the normal scraping of the scraping blade can be ensured on the basis that the normal filtering function of the wedge-shaped net filter screen cylinder 5 is not affected.
In addition, a pressure sensor is arranged in the filter shell 1, and a controller is arranged beside the filter. The controller is electrically connected with the pressure sensor and the driving piece 6. Preferably, the controller may employ a PLC controller. The pressure sensor adopts a waterproof sensor. The pressure sensor always keeps monitoring the pressure in the filter screen cylinder 5, the monitored pressure data are transmitted to the controller at regular time, the controller receives the pressure value transmitted by the pressure sensor, the pressure difference is calculated, once the pressure difference exceeds a preset threshold value, the controller controls the driving piece 6 to work, the self-cleaning scraping blade 8 assembly starts scraping the inner surface of the filter screen cylinder 5, and the influence of the pressure difference on the filtering effect and the filtering speed of the filter is eliminated in time.
Finally, a sealing element is arranged at the joint of the cylinder cover 12 and the filter shell 1, and the sealing element can adopt a rubber sealing ring for improving the tightness between the cylinder cover 12 and the filter shell 1 and avoiding liquid leakage.
Example two
The distinguishing technical features of this embodiment and the first embodiment are that: as shown in fig. 3, the self-cleaning blade 8 has a blade structure with a triangular cross section. And ensures that the triangular pointed end faces the inner surface of the filter screen cylinder 5. The scraping effect is improved by scraping refractory materials by adopting the sharp end of the scraping plate.
Example III
The distinguishing technical features of this embodiment and the first embodiment are that: as shown in fig. 4, the self-cleaning wiper 8 is of a scraper type structure with a circular arc-shaped section, and the radian of the circular arc-shaped structure is matched with that of the filter screen barrel 5. That is, preferably, the arc of the arc-shaped structure is the same as the arc of the filter screen cylinder 5. The arrangement of the arc scraping plate can scrape materials more adaptively, and the scraping effect can be improved.
And ensure that circular arc formula girth is less than the sixth of filter cylinder girth, can realize scraping the material in a large scale when the clearance like this, help improving and scrape material efficiency.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. The utility model provides a self-cleaning filter of doctor-bar, includes filter casing (1), sets up inlet (2), liquid outlet (3), drain (4) and filter screen section of thick bamboo (5) of setting in filter casing (1) on filter casing (1), its characterized in that, be equipped with the self-cleaning subassembly of doctor-bar formula in filter screen section of thick bamboo (5), wherein:
the scraping type self-cleaning component is driven by a driving piece (6) and used for scraping the inner surface of the filter screen cylinder (5), and comprises a driving rod (7) and a self-cleaning scraping piece (8), wherein the driving end of the driving piece (6) is connected with the driving rod (7), the driving rod (7) is connected with the self-cleaning scraping piece (8), and the scraping end of the self-cleaning scraping piece (8) faces the inner surface of the filter screen cylinder (5).
2. The blade-type self-cleaning filter according to claim 1, wherein the self-cleaning blade (8) is arranged at a distance from the filter screen cylinder (5).
3. The scraping type self-cleaning filter according to claim 2, wherein the filter screen cylinder (5) is a cylindrical structure with an open top, a circumferential direction surrounded by a wedge-shaped net and a closed bottom;
and the periphery of the filter screen cylinder (5) is arranged at intervals with the inner surface of the filter shell (1).
4. A self-cleaning scraper filter according to claim 3, wherein the first installation lug plate (10) is arranged at two sides of the top end of the filter screen cylinder (5), the second installation lug plate (11) which is matched with the first installation lug plate is arranged in the filter shell (1), and the filter screen cylinder (5) penetrates through the first installation lug plate (10) and the second installation lug plate (11) through bolts and is locked by nuts to fix the filter shell (1).
5. The scraping type self-cleaning filter as claimed in claim 4, wherein a pressure sensor is further arranged in the filter shell (1), and a controller is arranged beside the filter;
the controller is electrically connected with the pressure sensor and the driving piece (6).
6. The scraping type self-cleaning filter according to claim 5, wherein a cylinder cover (12) is fixed on the top of the filter housing (1), and a sealing element is arranged at the joint of the cylinder cover (12) and the filter housing (1);
the driving piece (6) is fixed on the cylinder cover (12), and the cylinder cover (12) is provided with a through hole for the driving rod (7) to pass through.
7. The self-cleaning wiper blade filter as claimed in claim 6, wherein the liquid inlet (2) is formed in a side wall of the filter housing (1) near the upper part, the liquid outlet (3) is formed in a side wall of the filter housing (1) near the lower part, and the sewage outlet (4) is located at the bottom of the filter housing (1), wherein:
the height of the liquid inlet (2) is higher than that of the filter screen barrel (5), and the liquid outlet (3) is positioned on one side of the filter screen barrel (5).
8. The blade-type self-cleaning filter according to claim 7, wherein the self-cleaning blade (8) is provided in a blade-type structure having a rectangular cross section.
9. The blade-type self-cleaning filter according to claim 7, wherein the self-cleaning blade (8) is provided in a blade-type structure having a triangular cross section.
10. The scraping type self-cleaning filter according to claim 7, wherein the self-cleaning scraping blade (8) is of a scraping type structure with a circular arc-shaped section, and the radian of the circular arc-shaped scraping type structure is matched with the radian of the filter screen cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223572420.6U CN219272319U (en) | 2022-12-30 | 2022-12-30 | Scraping blade type self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223572420.6U CN219272319U (en) | 2022-12-30 | 2022-12-30 | Scraping blade type self-cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219272319U true CN219272319U (en) | 2023-06-30 |
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ID=86929288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223572420.6U Active CN219272319U (en) | 2022-12-30 | 2022-12-30 | Scraping blade type self-cleaning filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219272319U (en) |
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2022
- 2022-12-30 CN CN202223572420.6U patent/CN219272319U/en active Active
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