CN112704974A - High temperature resistant dust removal filter bag - Google Patents
High temperature resistant dust removal filter bag Download PDFInfo
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- CN112704974A CN112704974A CN202011591255.1A CN202011591255A CN112704974A CN 112704974 A CN112704974 A CN 112704974A CN 202011591255 A CN202011591255 A CN 202011591255A CN 112704974 A CN112704974 A CN 112704974A
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- filter bag
- side plate
- bottom plate
- bag body
- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a high-temperature-resistant dust-removing filter bag, which comprises a filter bag body and a protective cover, wherein the protective cover comprises a circular funnel-shaped bottom plate with a large upper opening and a small lower opening and a cylindrical side plate which is annularly and vertically arranged on an opening at the upper end of the bottom plate. The filter bag body and the protective cover are respectively hung on the card through the connecting piece at the upper end of the filter bag body, the filter bag body is arranged in a space enclosed by the bottom plate, the cylindrical side plate and the card, and a gap is reserved between the filter bag body and the cylindrical side plate. The bottom plate and the cylindrical side plate are densely provided with filter holes; the bottom plate filter holes are obliquely arranged on the bottom plate from outside to inside in a top-to-bottom mode; the lateral plate filtering holes are obliquely arranged at a certain included angle with the corresponding radial direction of the cylindrical lateral plate, and the lateral plate filtering holes distributed on the upper section of the cylindrical lateral plate are obliquely arranged in a mode from top to bottom from outside to inside. According to the high-temperature-resistant filter bag, the protective cover can filter most dust in advance, and can decelerate dust-containing gas, so that impact on the filter bag body is reduced, the filter bag body is not easy to damage, and the service life is long.
Description
Technical Field
The invention relates to a dust removal device, in particular to a high-temperature-resistant dust removal filter bag.
Background
The bag type dust collector is a high-efficiency dust collector, wherein a filter bag is a main component of the bag type dust collector, usually a cylindrical filter bag is vertically hung in the dust collector, when the bag type dust collector works, dust-containing gas directly impacts the filter bag, dust is blocked on the outer surface of the filter bag, purified gas enters the interior of the filter bag, then enters an upper box body through a filter bag opening and is discharged from an air outlet. The high-temperature-resistant filter bag is coated with a high-temperature-resistant coating on the surface of a common filter bag or is made of a high-temperature-resistant material, so that the high-temperature-resistant performance of the filter bag is improved, and the requirements of certain high-temperature dust removal working conditions are met.
The high temperature resistant filter bag of current, the during operation, the dusty gas direct impact filter bag surface of high temperature gets off for a long time and can make the filter bag easily cause the damaged inefficacy of filter bag by dust scouring and wear, and in addition, the dust that bonds on the filter bag surface is too thick, is difficult to clear away, and the life of filter bag is shorter.
In order to solve the problem, the applicant carries out deep research on the high-temperature-resistant filter bag and generates the scheme.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant dust removal filter bag which is not easy to damage and has a long service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-temperature-resistant dust removal filter bag comprises a high-temperature-resistant cylindrical filter bag body and a filter bag connecting piece arranged at the upper end of the filter bag body; the filter bag comprises a filter bag body, a filter bag connector and a filter bag connector, wherein the filter bag body is covered with a high-temperature-resistant rigid protective cover, the protective cover comprises a circular funnel-shaped bottom plate with a large opening at the upper part and a small opening at the lower part, a cylindrical side plate which is arranged on the opening at the upper end of the bottom plate in a surrounding and standing mode, and a protective cover connecting piece arranged; the filter bag body is suspended on the card board through the filter bag connecting piece, the protective cover is suspended on the card board through the protective cover connecting piece, the filter bag body is arranged in a space enclosed by the bottom plate, the cylindrical side plate and the card board, a bottom gap is reserved between the bottom of the filter bag body and the bottom plate, and an annular side wall gap is reserved between the side wall of the filter bag body and the cylindrical side plate;
bottom plate filter holes are densely distributed on the bottom plate; the cylindrical side plate is densely provided with side plate filtering holes; one side faces, facing the filter bag body, of the bottom plate and the cylindrical side plate are inner, and one side face, back to the filter bag body, of the bottom plate and the cylindrical side plate is outer; each bottom plate filtering hole is obliquely arranged on the bottom plate from outside to inside in a top-to-bottom mode; each curb plate filtration pore all with the corresponding radial direction of cylindric curb plate is certain contained angle slope setting, just cylindric curb plate divide into upper segment and hypomere along the axial, distribute in each of upper segment curb plate filtration pore is from the top down mode slope setting by outer, distribute in each of hypomere curb plate filtration pore level sets up.
The included angle between the conical surface of the bottom plate and the horizontal direction is 10-75 degrees, and the caliber of the lower end opening of the bottom plate is not more than 2/3 of the diameter of the filter bag body.
The included angle between each bottom plate filtering hole and the horizontal direction is 10-75 degrees.
The surface of the protective cover is a smooth surface.
The protective cover is made of stainless steel.
The inclined directions of the filtering holes of the side plates distributed on the upper section are consistent.
The included angle between each side plate filtering hole distributed on the upper section and the horizontal direction is 10-75 degrees.
The inclined directions of the side plate filter holes distributed on the lower section are consistent.
The lower section of the cylindrical side plate is divided into two equal or unequal arc-shaped areas along the circumferential direction through a first boundary line and a second boundary line which are parallel to the axial direction, the first boundary line faces to a dust-containing gas inlet, the side plate filtering holes on the two arc-shaped areas are opposite in inclination direction, the side plate filtering holes close to the first boundary line deviate from the first boundary line from the outside to the inside, and the side plate filtering holes close to the second boundary line are both outwards and inwards converged to the second boundary line.
The included angle between each side plate filtering hole and the corresponding radial direction is between 45 and 75 degrees.
After the scheme is adopted, the high-temperature-resistant rigid protective cover is covered outside the filter bag body, the cylindrical side plate of the protective cover is densely provided with the side plate filtering holes which are obliquely arranged in a manner of forming a certain included angle with the radial direction, the cylindrical side plate is divided into the upper section and the lower section along the axial direction, the filtering holes of the side plates distributed on the upper section are obliquely arranged from outside to inside in a top-to-bottom manner, the bottom plate of the protective cover is in a funnel shape with the filtering holes of the bottom plate densely distributed, and the filtering holes of the bottom plate are obliquely arranged on the bottom plate from outside to inside in a top-to-bottom manner. When the dust-containing gas cleaning device works, the dust-containing gas firstly impacts the protective cover and impacts the dust-containing gas of the cylindrical side plate of the protective cover, wherein dust with larger particles is blocked on the outer surface of the cylindrical side plate, and the dust-containing gas carrying small-particle dust enters the protective cover from the side plate filtering holes of the cylindrical side plate. Because the curb plate filtration pore is in order to be the mode slope setting of certain contained angle with radial direction, and distribute in each curb plate filtration pore of upper segment by outer and interior from the top down mode slope setting that is, dust-laden gas that gets into in the protection casing through cylindric curb plate can carry out centrifugal rotary motion along annular lateral wall clearance, make most dust in the dust-laden gas be got rid of the internal surface at cylindric curb plate, dust accumulation to certain degree on the internal surface of cylindric curb plate, can drop by oneself under the action of gravity, lower extreme opening through the bottom plate falls into the ash bucket. And the dust-containing gas entering the protective cover from the upper section of the cylindrical side plate flows obliquely downwards while performing centrifugal rotation motion along the annular side wall gap, meets and collides with the dust-containing gas below in the oblique downwards flowing process, the dust flow rate in the dust-containing gas is reduced after mutual collision, and the dust is adsorbed and agglomerated to form larger-particle dust which freely falls onto the bottom plate or the dust hopper. The larger particle dust blocked on the outer surface of the cylindrical side plate can automatically fall down under the action of gravity and fall into the ash hopper. Strike the dirty gaseous of the bottom plate of protection casing, wherein the great dust of granule is detained the surface at the bottom plate, the dirty gaseous bottom plate filtration pore entering protection casing inside by the bottom plate filtration pore of bottom plate that carries the tiny particle dust, because the bottom plate filtration pore is from outside to inside from the top down mode slope sets up, the dirty gaseous bottom that flows into the protection casing through the bottom plate in to one side down to the bottom gap between the bottom of filter bag body and the bottom plate, lower extreme opening part gathering at the bottom plate, wherein most dust can collide each other, the caking, drop by oneself under the action of gravity, fall into the ash bucket, detain the great granule dust at the surface of bottom plate, also can fall by oneself under the action of gravity, fall into the ash bucket. According to the high-temperature-resistant filter bag, due to the existence of the protective cover, most dust can be filtered in advance, the protective cover can decelerate dust-containing gas, and the impact on the filter bag body is reduced, so that the filter bag body is not easy to damage, and the service life of the filter bag body is long.
Furthermore, in the invention, in order to ensure that the bottom plate can play a better protection role on the bottom of the filter bag body, the included angle between the conical surface of the bottom plate and the horizontal direction is 10-75 degrees, and the caliber of the opening at the lower end of the bottom plate is not more than 2/3 of the diameter of the filter bag body.
Further, in the invention, in order to enable the dust-containing gas entering the interior of the protective cover through the bottom plate filtering holes to flow obliquely downwards and consider the processing convenience, the included angle between the bottom plate filtering holes and the horizontal direction is 10-75 degrees.
Furthermore, the surface of the protective cover is smooth, so that dust adhered to the inner surface and the outer surface of the protective cover can fall down more easily.
Furthermore, in the invention, the inclined directions of the side plate filtering holes distributed on the upper section of the cylindrical side plate are consistent, and the dust-containing gas can obtain larger centrifugal force after passing through the upper section of the side plate filtering holes, so that the dust is more easily thrown onto the inner side surface of the cylindrical side plate.
Furthermore, in the invention, in order to enable the dust-containing gas entering the interior of the protective cover through each side plate filtering hole of the upper section of the cylindrical side plate to flow obliquely downwards and consider the processing convenience, the included angle between each side plate filtering hole distributed on the upper section of the cylindrical side plate and the horizontal direction is 10-75 degrees.
Furthermore, the inclined directions of the side plate filtering holes of the lower section of the cylindrical side plate are consistent, and the dust-containing gas can obtain larger centrifugal force after passing through the side plate filtering holes, so that the dust is more easily thrown onto the inner side surface of the cylindrical side plate.
Further, in the invention, the lower section of the cylindrical side plate is divided into two arc-shaped areas along the circumferential direction, the inclination directions of the side plate filtering holes of the two arc-shaped areas are opposite, the dust-containing gas flows in two ways from the first boundary line along the inner surface of the cylindrical side plate after passing through the side plate filtering holes of the lower section of the cylindrical side plate, and finally meets and collides with the second boundary line, the dust flow speed in the dust-containing gas is reduced after mutual collision, and the dust is adsorbed into a mass, so that larger particles of dust are formed and fall onto the bottom plate or the dust hopper freely.
Furthermore, in the invention, in order to enable the dust-containing gas to better centrifugally rotate along the inner surface of the cylindrical side plate after entering the protective cover through the side plate filtering holes and considering the convenience of processing, the included angle between each side plate filtering hole and the corresponding radial direction is 45-75 degrees.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged transverse cross-sectional view of the cylindrical side plate of FIG. 1;
fig. 3 is an enlarged schematic view of a transverse section of another structure of the cylindrical side plate of fig. 1.
Detailed Description
The high-temperature-resistant dust removal filter bag disclosed by the invention comprises a high-temperature-resistant cylindrical filter bag body 1 and a filter bag connecting piece arranged at the upper end of the filter bag body, as shown in a figure 1-2; the filter bag comprises a filter bag body 1, wherein a rigid protective cover 2 resistant to high temperature is covered outside the filter bag body 1, the protective cover 2 comprises a circular funnel-shaped bottom plate 21 with a large opening and a small opening, a cylindrical side plate 22 which is vertically arranged on an opening at the upper end of the bottom plate 21 in a surrounding mode, and a protective cover connecting piece which is arranged at the upper end of the cylindrical side plate 22. The dust collector comprises a filter bag body 1, a flower plate 3, a protective cover, a cylindrical side plate 22 and the flower plate 3, wherein the filter bag body 1 is arranged in a box body of the dust collector and is suspended on the flower plate 3 through a filter bag connecting piece at the upper end of the filter bag body, the protective cover is arranged in the box body of the dust collector and is suspended on the flower plate 3 through a protective cover connecting piece at the upper end of the protective cover, the filter bag body 1 is arranged in a space enclosed by the bottom plate 21, the cylindrical side plate 22 and the flower plate 3, a bottom gap 23 is reserved between the bottom of the filter bag body 1 and the bottom plate 21, and an annular.
In the invention, the high-temperature resistant cylindrical filter bag body 1 adopts the conventional technology, for example, the surface of a common filter bag is coated with a high-temperature resistant coating, and an antistatic layer and a corrosion-resistant layer can be further coated according to requirements.
In the invention, the filter bag connecting piece adopts the conventional filter bag connecting piece, and the filter bag body 1 is hung on the pattern plate 3 through the filter bag connecting piece in the conventional mode.
In the invention, the protective cover connecting piece can also adopt a structure similar to the filter bag connecting piece and is hung on the pattern plate 3 by adopting the conventional mode. When the dust filter is installed, no gap is left between the upper end surface of the cylindrical side plate 22 and the flower plate 3, so that dust-containing gas is prevented from flowing in from the upper part of the cylindrical side plate 22 and directly reaching the filter bag body 1. Specifically, the protection casing connecting piece can adopt two upper and lower elastic rings that are fixed in protection casing 2 upper end, and the protection casing mounting hole has been seted up to card 3, and the external diameter of these two elastic rings all is a little greater than the bore of this protection casing mounting hole, leaves the interval with the thickness looks adaptation of card 3 between two elastic rings, and during the installation, an above-mentioned elastic ring goes into the protection casing mounting hole through elastic deformation card, and card 3 of card is between two upper and lower elastic rings to hang protection casing 2 on card 3.
The bottom plate 21 is densely provided with bottom plate filtering holes 211, and the cylindrical side plate 22 is densely provided with side plate filtering holes 221; one side surface of the bottom plate 21 and one side surface of the cylindrical side plate 22, which face to the filter bag body 1, are inward, and one side surface of the bottom plate and one side surface of the cylindrical side plate, which face away from the filter bag body 1, are outward; the bottom plate filtering holes 211 are obliquely arranged on the bottom plate 21 from outside to inside in a top-to-bottom manner; each side plate filtering hole 221 is obliquely arranged at a certain included angle with the radial direction of each corresponding position of the cylindrical side plate 22, the cylindrical side plate 22 is axially divided into an upper section and a lower section, each side plate filtering hole 2211 distributed on the upper section is obliquely arranged from outside to inside in a top-to-bottom mode, and each side plate filtering hole 2212 distributed on the lower section is horizontally arranged.
After the scheme is adopted, in the high-temperature-resistant filter bag, when the filter bag works, the protective cover 2 covers the filter bag body 1, most of dust-containing gas entering the box body of the dust collector through the dust-containing gas inlet firstly impacts the protective cover 2, one part of the dust-containing gas impacts the cylindrical side plate 22 of the protective cover, and the other part of the dust-containing gas impacts the bottom plate 21 of the protective cover. The dust-containing gas impacting the cylindrical side plate 22 of the shield, wherein the dust with larger particles is retained on the outer surface of the cylindrical side plate 22, the dust-containing gas carrying small particles of dust enters the shield 2 from the side plate filtering holes 2211, 2212 of the cylindrical side plate 22, because the side plate filtering holes 2211, 2212 are obliquely arranged in a manner of forming a certain included angle with the radial direction, the dust-containing gas entering the shield 2 through the cylindrical side plate 22 can carry out centrifugal rotation movement along the annular side wall gap 24, so that most of the dust in the dust-containing gas is thrown onto the inner surface of the cylindrical side plate 22, the dust on the inner surface of the cylindrical side plate 22 is accumulated to a certain degree, and can automatically fall under the action of gravity, and fall into a dust hopper through the lower end opening of the bottom plate 21. Moreover, the dust-containing gas entering the shield 2 through the side plate filtering holes 2211 at the upper section of the cylindrical side plate 22 flows obliquely downward while performing centrifugal rotation movement along the annular side wall gap 24, and meets and collides with the dust-containing gas below in the process of flowing obliquely downward, the dust flow rate in the dust-containing gas after mutual collision is reduced, and the dust is adsorbed and agglomerated to form larger particles of dust, which freely falls onto the bottom plate or the dust hopper. The larger particles of dust trapped on the outer surface of the cylindrical side plate 22 will also fall by gravity and fall into the hopper. Impact the dirty gas of the bottom plate 21 of protection casing, wherein the great dust of granule is detained at the surface of bottom plate 21, the dirty gas that carries the tiny particle dust gets into inside the protection casing 2 by the bottom plate filtration pore 211 of bottom plate, because bottom plate filtration pore 211 is from outside to inside from the top down mode slope sets up, the dirty gas that gets into in the protection casing 2 through bottom plate 21 flows to the bottom of filter bag body and the bottom clearance 23 between the bottom plate downwards to one side, in the lower extreme opening part gathering of bottom plate 21, wherein most dust can collide each other, the caking, drop by oneself under the action of gravity, fall into the ash bucket, the great granule dust of detaining at the surface of bottom plate 21, also can fall by oneself under the action of gravity, fall into the ash bucket.
According to the high-temperature-resistant filter bag, due to the existence of the protective cover 2, most dust can be filtered in advance, the protective cover 2 can decelerate dust-containing gas, and the impact on the filter bag body 1 is reduced, so that the filter bag body 1 is not easy to damage and has a long service life.
Furthermore, in the invention, in order to ensure that the bottom plate 21 can play a better protection role on the bottom of the filter bag body 1, an included angle between the conical surface of the bottom plate 21 and the horizontal direction is 10-75 degrees, and the caliber of the lower end opening of the bottom plate 21 is not more than 2/3 of the diameter of the filter bag body 1.
Further, in the present invention, in order to allow the dust-containing gas entering the interior of the shield 2 through the bottom plate filter holes 211 to flow obliquely downward, and considering the convenience of processing, an angle of 10 to 75 degrees is used between the bottom plate filter holes 211 and the horizontal direction.
Further, in the present invention, the surface of the shield 2 is smooth, so that dust adhered to the inner and outer surfaces of the shield 2 can more easily fall down by itself. Specifically, in the present invention, the shield 2 may be made of stainless steel.
Further, in the present invention, the inclined directions of the side plate filtering holes 2211 distributed on the upper section of the cylindrical side plate 21 are the same, and the dust-containing gas can obtain a larger centrifugal force after passing through the side plate filtering holes 2211, so that the dust can be more easily thrown onto the inner side surface of the cylindrical side plate 22.
Further, in the present invention, in order to allow the dust-containing gas entering the interior of the shield 2 through the side plate filtering holes 2211 of the upper section of the cylindrical side plate 22 to flow obliquely downward, and in consideration of the convenience of processing, an angle between the side plate filtering holes 2211 distributed on the upper section of the cylindrical side plate 22 and the horizontal direction is 10 to 75 degrees.
Further, in the present invention, the inclined directions of the side plate filtering holes 2212 distributed on the lower section of the cylindrical side plate 22 are the same, and the dust-containing gas can obtain a larger centrifugal force after passing through the side plate filtering holes 2212, so that the dust can be more easily thrown onto the inner side surface of the cylindrical side plate 22.
Further, in the present invention, in order to enable the dust-containing gas to better centrifugally rotate along the inner surface of the cylindrical side plate 22 after entering the protection cover 2 through the side plate filtering holes 2211, 2212, and considering the convenience of processing, an included angle between each side plate filtering hole 2211, 2212 and the corresponding radial direction is 45-75 degrees, and as a preferred option, an angle of 60 degrees may be used.
In the present invention, the side plate filtering holes of the lower section of the cylindrical side plate 22 may be distributed in another way, as shown in fig. 3, the lower section of the cylindrical side plate 22 is divided into two equal or unequal arc- shaped areas 223 and 224 along the circumferential direction by a first boundary line and a second boundary line (both the first boundary line and the second boundary line are virtual lines, not shown in the figure) parallel to the axial direction, in this embodiment, the two arc- shaped areas 223 and 224 are equal 180-degree arc-shaped areas (i.e. semi-circular areas). The first boundary line faces the dust-containing gas inlet, the side plate filter holes 2212a, 2212b on the two arc-shaped areas 223, 224 are inclined in opposite directions, each side plate filter hole 2212a, 2212b close to the first boundary line deviates from the first boundary line from outside to inside, and each side plate filter hole 2212a, 2212b close to the second boundary line deviates from outside to inside. In this embodiment, each of the side plate filtering holes 2212a and 2212b is also horizontally disposed and is inclined at a certain angle with the radial direction of each corresponding position of the cylindrical side plate 22. In this embodiment, the lower section of the cylindrical side plate 22 is divided into two arc-shaped regions 223 and 224 along the circumferential direction, the inclination directions of the side plate filtering holes 2212a and 2212b on the two arc-shaped regions are opposite, the dust-containing gas passes through the side plate filtering holes 2212a and 2212b and then flows along the inner surface of the cylindrical side plate 22 from the first boundary line in two ways, finally, the dust-containing gas meets and collides with the second boundary line, the dust flow rate in the dust-containing gas after the dust-containing gas collides with each other is reduced, the dust is adsorbed into a mass, larger particles of dust are formed, and the dust falls freely onto the bottom plate 21 or into the dust hopper. In this embodiment, in order to make the dust-containing gas enter the protection cover 2 through the side plate filtering holes 2212a and 2212b and then better rotate along the inner surface of the cylindrical side plate 22 centrifugally, and considering the convenience of processing, the included angle between each side plate filtering hole 2212a and 2212b and the corresponding radial direction is 45-75 degrees, and as a preferred option, 60 degrees can be used.
In the invention, because the protective cover is arranged, the impact force of the dust-containing gas to the filter bag body 1 is smaller, and a supporting cage does not need to be arranged in the filter bag body 1. Of course, a support cage may also be provided in the filter bag body 1.
The above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be apparent to those skilled in the art that other variations and modifications of the present invention may be made on the basis of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (10)
1. A high-temperature-resistant dust removal filter bag comprises a high-temperature-resistant cylindrical filter bag body and a filter bag connecting piece arranged at the upper end of the filter bag body; the method is characterized in that: the filter bag comprises a filter bag body, a filter bag connector and a filter bag connector, wherein the filter bag body is covered with a high-temperature-resistant rigid protective cover, the protective cover comprises a circular funnel-shaped bottom plate with a large opening at the upper part and a small opening at the lower part, a cylindrical side plate which is arranged on the opening at the upper end of the bottom plate in a surrounding and standing mode, and a protective cover connecting piece arranged; the filter bag body is suspended on the card board through the filter bag connecting piece, the protective cover is suspended on the card board through the protective cover connecting piece, the filter bag body is arranged in a space enclosed by the bottom plate, the cylindrical side plate and the card board, a bottom gap is reserved between the bottom of the filter bag body and the bottom plate, and an annular side wall gap is reserved between the side wall of the filter bag body and the cylindrical side plate;
bottom plate filter holes are densely distributed on the bottom plate; the cylindrical side plate is densely provided with side plate filtering holes; one side faces, facing the filter bag body, of the bottom plate and the cylindrical side plate are inner, and one side face, back to the filter bag body, of the bottom plate and the cylindrical side plate is outer; each bottom plate filtering hole is obliquely arranged on the bottom plate from outside to inside in a top-to-bottom mode; each curb plate filtration pore all with the corresponding radial direction of cylindric curb plate is certain contained angle slope setting, just cylindric curb plate divide into upper segment and hypomere along the axial, distribute in each of upper segment curb plate filtration pore is from the top down mode slope setting by outer, distribute in each of hypomere curb plate filtration pore level sets up.
2. The high temperature resistant dust bag according to claim 1, wherein: the included angle between the conical surface of the bottom plate and the horizontal direction is 10-75 degrees, and the caliber of the lower end opening of the bottom plate is not more than 2/3 of the diameter of the filter bag body.
3. The high temperature resistant dust bag according to claim 1, wherein: the included angle between each bottom plate filtering hole and the horizontal direction is 10-75 degrees.
4. The high temperature resistant dust bag according to claim 1, wherein: the surface of the protective cover is a smooth surface.
5. The high temperature resistant dust bag according to claim 1, wherein: the protective cover is made of stainless steel.
6. The high temperature resistant dust bag according to claim 1, wherein: the inclined directions of the filtering holes of the side plates distributed on the upper section are consistent.
7. The high temperature resistant dust bag according to claim 1, wherein: the included angle between each side plate filtering hole distributed on the upper section and the horizontal direction is 10-75 degrees.
8. The high temperature resistant dust bag according to claim 1, wherein: the inclined directions of the side plate filter holes distributed on the lower section are consistent.
9. The high temperature resistant dust bag according to claim 1, wherein: the lower section of the cylindrical side plate is divided into two equal or unequal arc-shaped areas along the circumferential direction through a first boundary line and a second boundary line which are parallel to the axial direction, the first boundary line faces to a dust-containing gas inlet, the side plate filtering holes on the two arc-shaped areas are opposite in inclination direction, the side plate filtering holes close to the first boundary line deviate from the first boundary line from the outside to the inside, and the side plate filtering holes close to the second boundary line are both outwards and inwards converged to the second boundary line.
10. A high temperature resistant dust bag according to claim 1 or 6 or 8 or 9 wherein: the included angle between each side plate filtering hole and the corresponding radial direction is between 45 and 75 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591255.1A CN112704974A (en) | 2020-12-29 | 2020-12-29 | High temperature resistant dust removal filter bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591255.1A CN112704974A (en) | 2020-12-29 | 2020-12-29 | High temperature resistant dust removal filter bag |
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| Publication Number | Publication Date |
|---|---|
| CN112704974A true CN112704974A (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011591255.1A Pending CN112704974A (en) | 2020-12-29 | 2020-12-29 | High temperature resistant dust removal filter bag |
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| CN (1) | CN112704974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113750664A (en) * | 2021-08-31 | 2021-12-07 | 成都易态科技有限公司 | Filter and dust removal method |
-
2020
- 2020-12-29 CN CN202011591255.1A patent/CN112704974A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113750664A (en) * | 2021-08-31 | 2021-12-07 | 成都易态科技有限公司 | Filter and dust removal method |
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