CN219682030U - Integrated air knife of centrifugal filter - Google Patents
Integrated air knife of centrifugal filter Download PDFInfo
- Publication number
- CN219682030U CN219682030U CN202223093863.7U CN202223093863U CN219682030U CN 219682030 U CN219682030 U CN 219682030U CN 202223093863 U CN202223093863 U CN 202223093863U CN 219682030 U CN219682030 U CN 219682030U
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- China
- Prior art keywords
- air knife
- air
- knife body
- centrifugal filter
- filter
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- 238000007664 blowing Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An integrated air knife of a centrifugal filter, which is characterized in that: the air knife body is conical in shape, is provided with an air jet, a central hole and a bottom flange, is assembled on a driving shaft of a rotary drum of the centrifugal filter through the central hole, and is connected with a rotary drum bottom plate through the bottom flange of the air knife body; the air inlet pipe penetrates through the flange at the bottom of the air knife body and is communicated with the inside of the air knife body, and the air nozzles are uniformly distributed along the circumferential direction of the air knife body; the external cone angle of the air knife body is consistent with the inclination angle of the filter cylinder of the centrifugal filter, and the clearance between the external shape of the air knife body and the filter cylinder is 2-4 mm. The integral air knife of the centrifugal filter provided by the utility model is suitable for a narrow assembly space in the centrifugal filter, can realize back blowing of gas, has no secondary pollution and has good environmental protection performance.
Description
Technical Field
The utility model relates to the field of centrifugal filtration, in particular to an integral air knife of a centrifugal filter.
Background
Most of the existing centrifugal filtering equipment is one-way filtering, a filter cake layer formed on the surface of a filter screen after running for a period of time is gradually thickened, so that the treatment capacity of the filtering equipment is obviously reduced, and the filtering equipment is required to be shut down for cleaning, so that the interruption of filtering production is caused. The filter cake cleaning generally requires a mechanical scraper, and the filter cake can be back-blown and cleaned by means of high-speed air flow of an air knife or an air knife.
The air knife is converted into high-speed air flow ejected from the air jet outlet to blow off filter residues or particles and the like by means of high-pressure air output by the fan or the air compressor, so that a cleaning effect is realized. However, the existing strip-shaped air knife device generally has the defects of complex structure and large assembly space, and is not suitable for a narrow space in a centrifugal filter.
Disclosure of Invention
The utility model aims to solve the problems that the conventional air knife device is not compact in assembly and is not suitable for being installed in a compact space inside a centrifugal filter, and provides an integrated air knife of the centrifugal filter.
In order to achieve the above object, the present utility model provides the following technical solutions: an integrated air knife of a centrifugal filter, which is characterized in that: the air knife body is conical in shape, is provided with an air jet, a central hole and a bottom flange, is assembled on a driving shaft of a rotary drum of the centrifugal filter through the central hole, and is connected with a rotary drum bottom plate through the bottom flange of the air knife body; the air inlet pipe penetrates through the flange at the bottom of the air knife body at the bottom and is communicated with the inside of the air knife body, and the air nozzles are uniformly distributed along the circumferential direction of the air knife body.
The external cone angle of the air knife body is consistent with the inclination angle of the filter cylinder of the centrifugal filter, and the clearance between the external shape of the air knife body and the filter cylinder is 2-4 mm.
The cross section of the air jet is in a tapered jet pipe shape, the length direction of the air jet is parallel to the filter cylinder, and the number of the air jet can be 4-20.
The integrated air knife of the centrifugal filter provided by the utility model has the following advantages:
(1) The structure is compact, the installation is convenient, the device is suitable for the compact space inside the centrifugal filter, and the device can be used for on-line cleaning of the filter screen of the centrifugal filter;
(2) 4 to 20 air nozzles are arranged according to the number of the filter cylinders of the centrifugal filter, and the filter cylinders can be subjected to pulse back blowing along with the rotation of the centrifugal filter, so that the filter cylinders have a vibrating effect and a good cleaning effect;
(3) The use of back blowing of gas does not cause secondary pollution and has good environmental protection performance.
Drawings
FIG. 1 is a schematic view of an integrated air knife of a centrifugal filter according to the present utility model;
FIG. 2 is a cross-sectional view A-A shown in FIG. 1, illustrating a schematic diagram of an integrated air knife structure of a centrifugal filter according to the present utility model;
as shown in fig. 1, 1 is an air knife body, and 2 is an air intake pipe.
Detailed Description
The utility model is further illustrated by the following figures and examples:
as shown in fig. 1 to 2, an integral air knife of a centrifugal filter is characterized in that: comprises an air knife body 1 and an air inlet pipe 2; the air knife body 1 is conical in shape, an air jet 101, a central hole 102 and a bottom flange 103 are arranged on the air knife body 1, and the air knife body 1 is assembled on a driving shaft of a rotary drum of the centrifugal filter through the central hole 102 and is connected with a rotary drum bottom plate through the air knife body bottom flange 103; the air inlet pipe 2 penetrates through the air knife body bottom flange 103 at the bottom and is communicated with the inside of the air knife body 1, and the air jet ports 101 are uniformly distributed along the circumferential direction of the air knife body 1.
When the air knife works, the fan pressurizes air, the air enters the air knife body 1 through the air inlet pipe 2, a large amount of high-pressure air in the air knife body 1 is converted into high-speed air flow through the air jet 101, and the high-pressure air is vertically blown to the side wall of the filter cylinder from the air jet 101 to carry out reverse blowing cleaning on filter cakes, so that the filter cake cleaning function of the centrifugal filter is achieved. As the centrifugal filter rotates, when the filter cartridge rotates past the air jet ports 101 of the air knife body 1, air flow ejected from the air jet ports 101 blows back and cleans the filter cartridge.
The integral air knife of the centrifugal filter provided by the utility model is suitable for a narrow assembly space in the centrifugal filter, can realize pneumatic back blowing, and has good protection effect.
Claims (3)
1. An integrated air knife of a centrifugal filter, which is characterized in that: the air knife body is conical in shape, is provided with an air jet, a central hole and a bottom flange, is assembled on a driving shaft of a rotary drum of the centrifugal filter through the central hole, and is connected with a rotary drum bottom plate through the bottom flange of the air knife body; the air inlet pipe penetrates through the flange at the bottom of the air knife body at the bottom and is communicated with the inside of the air knife body, and the air nozzles are uniformly distributed along the circumferential direction of the air knife body.
2. The integrated air knife of a centrifugal filter according to claim 1, wherein: the external cone angle of the air knife body is consistent with the inclination angle of the filter cylinder of the centrifugal filter, and the clearance between the external shape of the air knife body and the filter cylinder is 2-4 mm.
3. The integrated air knife of a centrifugal filter according to claim 1, wherein: the cross section of the air jet is in a tapered jet pipe shape, the length direction of the air jet is parallel to the filter cylinder, and the number of the air jet can be 4-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093863.7U CN219682030U (en) | 2022-11-21 | 2022-11-21 | Integrated air knife of centrifugal filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093863.7U CN219682030U (en) | 2022-11-21 | 2022-11-21 | Integrated air knife of centrifugal filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219682030U true CN219682030U (en) | 2023-09-15 |
Family
ID=87938258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223093863.7U Active CN219682030U (en) | 2022-11-21 | 2022-11-21 | Integrated air knife of centrifugal filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219682030U (en) |
-
2022
- 2022-11-21 CN CN202223093863.7U patent/CN219682030U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |