CN113713521A - Bag type dust collector for coal conveying belt - Google Patents
Bag type dust collector for coal conveying belt Download PDFInfo
- Publication number
- CN113713521A CN113713521A CN202110966248.3A CN202110966248A CN113713521A CN 113713521 A CN113713521 A CN 113713521A CN 202110966248 A CN202110966248 A CN 202110966248A CN 113713521 A CN113713521 A CN 113713521A
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- Prior art keywords
- casing
- shell
- bag
- wall
- belt according
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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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
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
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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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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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
- B01D46/42—Auxiliary equipment or operation thereof
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a bag type dust collector for a coal conveying belt, which comprises: a pedestal, the casing of setting on the base, centrifugal fan, rapping mechanism, the unloading valve, the casing includes casing and lower casing, it is cylindric to go up the casing, install the filter bag in it, lower casing upper end aligns and is connected with last casing, tip is gradually internal contracting downwards and is the circular cone of removing the head down the casing under, set up the air inlet that is used for carrying dusty gas in to the casing down on the casing, centrifugal fan connects the top at last casing, rapping mechanism sets up on the outer wall of last casing, be used for ordering about the filter bag vibrations, the unloading valve is connected in the bottom of casing down, through set up the spacer in the outer wall of casing down, let in the cooling water in the spacer, can reduce the temperature of casing, make the steam condensation in the dusty gas on the inner wall of casing down, avoid steam moist filter bag to cause the jam, realize that steam gets rid of, this coal-conveying belt is with bag collector dust collection efficiency height, The service life of the filter bag is long.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to a bag type dust collector for a coal conveying belt.
Background
The coal conveying device is a device for conveying coal, the belt conveying is most widely applied in the coal conveying device, dust at a transfer point of a coal conveying belt is large, the dust is generally removed primarily by adopting a water spraying mode, and then dust gas is conveyed to a bag type dust collector by adopting a pipeline for secondary dust removal.
Most of the existing bag type dust collectors do not have the function of removing water vapor, the water vapor in dust gas easily wets the filter bag, so that pulverized coal particles are bonded on the surface of the filter bag to cause blockage, the dust removal efficiency is low, and the service life of the filter bag is short.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the bag type dust collector for the coal conveying belt, which has the functions of removing water vapor, high dust collection efficiency and long service life of a filter bag.
In order to achieve the above object, the present invention provides a bag type dust collector for a coal belt, comprising:
a base;
the shell is arranged on the base and comprises an upper shell and a lower shell, the upper shell is cylindrical, a filter bag is mounted in the upper shell, the upper end of the lower shell is cylindrical and is aligned and connected with the upper shell, the lower end of the lower shell gradually shrinks inwards downwards to form a truncated cone, an air inlet is formed in the lower shell, a dust absorption pipeline extending to a transfer point of the coal conveying belt is connected to the air inlet, and the air inlet is used for conveying dust-containing gas into the shell;
the centrifugal fan is connected to the top of the upper shell, and the direction of an exhaust port of the centrifugal fan is perpendicular to the axial lead of the shell;
the rapping mechanism is arranged on the outer wall of the upper shell and is used for driving the filter bag to vibrate;
the ash discharge valve is connected to the bottom of the lower shell;
the outer wall of the lower shell is provided with a spacer bush, cooling water is filled in the spacer bush, and the spacer bush is used for reducing the temperature of the lower shell, so that water vapor in the dust-containing gas is condensed on the inner wall of the lower shell, and the filter bag is prevented from being blocked due to the fact that the water vapor is wet.
Preferably, the temperature of the cooling water is 2-5 ℃.
Preferably, the axis of the air inlet is tangential to the lower shell.
Preferably, the bottom of the upper shell is connected with a downward gradually-inward-shrinking enclosing plate in the shape of a truncated cone, the upper edge of the enclosing plate is higher than the air inlet, and the lower edge of the enclosing plate is lower than the air inlet.
Further preferably, the enclosing plate is a hollow plate, and the inner cavity of the enclosing plate is filled with cooling water.
Further preferably, a projection of the bottom opening of the enclosing plate in the vertical direction coincides with a projection of the bottom opening of the lower shell in the vertical direction.
Further preferably, the bottom of the coaming is connected with a stainless steel round tube extending downwards, and a gap is formed between the lower edge of the stainless steel round tube and the bottom opening of the lower shell.
Preferably, the upper shell is provided with an access door.
Preferably, the ash discharging valve is connected with a motor for driving the ash discharging valve to act.
Further preferably, the housing is made of a stainless steel material.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention provides a bag type dust collector for a coal conveying belt, which comprises: a pedestal, the casing of setting on the base, centrifugal fan, rapping mechanism, the unloading valve, the casing includes casing and lower casing, it is cylindric to go up the casing, install the filter bag in it, lower casing upper end aligns and is connected with last casing, tip is gradually internal contracting downwards and is the circular cone of removing the head down the casing under, set up the air inlet that is used for carrying dusty gas in to the casing down on the casing, centrifugal fan connects the top at last casing, rapping mechanism sets up on the outer wall of last casing, be used for ordering about the filter bag vibrations, the unloading valve is connected in the bottom of casing down, through set up the spacer in the outer wall of casing down, let in the cooling water in the spacer, can reduce the temperature of casing, make the steam condensation in the dusty gas on the inner wall of casing down, avoid steam moist filter bag to cause the jam, realize that steam gets rid of, this coal-conveying belt is with bag collector dust collection efficiency height, The service life of the filter bag is long.
Drawings
Fig. 1 is a schematic front view of a first embodiment of the present invention.
Fig. 2 is a cross-sectional enlarged schematic view at the lower case of fig. 1.
Fig. 3 is a schematic enlarged sectional view of the lower case according to the second embodiment of the present invention.
Wherein: 10. a base; 21. an upper housing; 211. enclosing plates; 212. a stainless steel round tube; 213. an access door; 22. a lower housing; 221. an air inlet; 222. a spacer sleeve; 223. a water inlet; 224. 30, a centrifugal fan; 31. an exhaust port; 40. a rapping mechanism; 50. an ash discharge valve; 51. an electric motor.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.
The vertical direction in the present invention refers to the vertical direction in fig. 1, 2, and 3.
Example one
As shown in fig. 1-2, the present invention provides a bag collector for a coal belt, comprising: the device comprises a base 10, a shell, a centrifugal fan 30, a rapping mechanism 40 and an ash discharge valve 50, wherein the base 10 consists of a plurality of support columns; the shell is arranged on the base 10 and comprises an upper shell 21 and a lower shell 22, wherein the upper shell 21 is cylindrical, a filter bag (not shown in the figure) is arranged in the upper shell 21, the upper end of the lower shell 22 is cylindrical and is aligned and connected with the upper shell 21, the lower end of the lower shell 22 gradually shrinks inwards to form a truncated cone shape, the lower shell 22 is provided with an air inlet 221, the air inlet 221 is connected with a dust suction pipeline extending to a coal conveying belt transfer point, and the air inlet 221 is used for conveying dust-containing gas into the shell; the centrifugal fan 30 is connected to the top of the upper shell 21, and the direction of the air outlet 31 of the centrifugal fan 30 is vertical to the axial lead of the shell; the rapping mechanism 40 is arranged on the outer wall of the upper shell 21, and the rapping mechanism 40 is used for driving the filter bag to vibrate; the dust discharging valve 50 is connected to the bottom of the lower casing 22, and a motor 51 for driving the dust discharging valve 50 to operate is connected to the dust discharging valve 50.
In this embodiment, a spacer 222 is disposed on the outer wall of the lower housing 22, the spacer 222 is located below the air inlet 221, and cooling water is introduced into the spacer 222, and the temperature of the cooling water is 2-5 ℃.
The benefit that sets up like this lies in, can be through the cooling water in the spacer sleeve temperature of lower casing, makes the interior steam condensation of dusty gas on the inner wall of casing down, realizes that steam gets rid of, reduces the steam content in the dirt gas with the filter bag contact, avoids the too high moist filter bag of steam content to cause the jam to improve dust collection efficiency, extension filter bag life.
In this embodiment, the axial line of the air inlet 221 is tangent to the lower housing 22, the bottom of the upper housing 21 is connected with a truncated-cone-shaped coaming 211 which gradually contracts downwards, the upper edge of the coaming 211 is higher than the air inlet 221, the lower edge of the coaming 211 is lower than the air inlet 221, the distance between the coaming 211 and the lower housing 22 gradually increases from top to bottom, and the projection of the bottom opening of the coaming 211 in the up-down direction coincides with the projection of the bottom opening of the lower housing 22 in the up-down direction.
The benefit that sets up like this lies in, and after the dirt gas got into the casing from the air inlet, can form the whirlwind of rotation and downstream between bounding wall, lower casing, makes the particulate matter in the dirt gas concentrate to the bounding wall outer wall, at the in-process of downstream, because the distance between bounding wall and the lower casing crescent, the wind speed reduces gradually, and the particulate matter in the dirt gas progressively subsides to promote dust collection efficiency.
In this embodiment, bounding wall 211 is the cavity board, and the inside cavity of bounding wall 211 leads to there is the cooling water, and the temperature of cooling water is 2-5 ℃ for the inside and outside wall of bounding wall 211 all forms the cold wall, further promotes the condensation effect of steam, reduces the steam content in the dirt gas, realizes avoiding the filter bag to block up, improves dust collection efficiency, extension filter bag life's effect.
In order to facilitate the maintenance, the filter bag replacement and the cleaning of the inner wall of the enclosing plate 211, in this embodiment, the upper housing 21 is provided with an access door 213.
In order to facilitate the opening and closing of the dust discharging valve 50, in the present embodiment, a motor 51 for driving the dust discharging valve 50 is connected to the dust discharging valve 50.
In order to avoid corrosion of the housing in a high humidity environment, in the present embodiment, the upper housing 21 and the lower housing 22 are made of stainless steel material.
Example two
The second embodiment is substantially the same as the first embodiment, except that in the second embodiment, a stainless steel circular tube 212 extending downward is connected to the bottom of the enclosure plate 211, and a gap is formed between the lower edge of the stainless steel circular tube 212 and the bottom opening of the lower shell 22, as shown in fig. 3, so that the cyclone travel path can be prolonged, and the settling ratio of the particulate matters in the dust gas can be increased.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A bag collector for a coal belt, comprising:
a base;
a housing disposed on the base, the housing including an upper housing and a lower housing,
the upper shell is cylindrical, a filter bag is mounted in the upper shell, the upper end part of the lower shell is cylindrical and is aligned and connected with the upper shell, the lower end part of the lower shell gradually shrinks inwards to form a truncated cone shape, and the lower shell is provided with an air inlet which is used for conveying dust-containing gas into the shell;
the centrifugal fan is connected to the top of the upper shell, and the direction of an exhaust port of the centrifugal fan is perpendicular to the axial lead of the shell;
the rapping mechanism is arranged on the outer wall of the upper shell and is used for driving the filter bag to vibrate;
the ash discharge valve is connected to the bottom of the lower shell;
the method is characterized in that:
the outer wall of the lower shell is provided with a spacer bush, cooling water is filled in the spacer bush, and the spacer bush is used for reducing the temperature of the lower shell, so that water vapor in the dust-containing gas is condensed on the inner wall of the lower shell, and the filter bag is prevented from being blocked due to the fact that the water vapor is wet.
2. The bag collector for a coal belt according to claim 1, wherein: the temperature of the cooling water is 2-5 ℃.
3. The bag collector for a coal belt according to claim 1, wherein: the axial lead of the air inlet is tangent to the lower shell.
4. The bag collector for a coal belt according to claim 1, wherein: the bottom of the upper shell is connected with a downward gradually-inward-shrinking circular truncated cone-shaped coaming, the upper edge of the coaming is higher than the air inlet, and the lower edge of the coaming is lower than the air inlet.
5. The bag collector for a coal belt according to claim 4, wherein: the bounding wall is the cavity board, the inside cavity of bounding wall leads to there is cooling water.
6. The bag collector for a coal belt according to claim 4, wherein: the projection of the bottom opening of the coaming in the vertical direction is coincided with the projection of the bottom opening of the lower shell in the vertical direction.
7. The bag collector for a coal belt according to claim 4, wherein: the bottom of bounding wall is connected with downwardly extending's stainless steel pipe, the lower edge of stainless steel pipe with have the clearance down between the bottom opening of casing.
8. The bag collector for a coal belt according to claim 1, wherein: an access door is arranged on the upper shell.
9. The bag collector for a coal belt according to claim 1, wherein: and the ash discharging valve is connected with a motor for driving the ash discharging valve to act.
10. The bag collector for a coal belt according to any one of claims 1 to 9, wherein: the housing is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966248.3A CN113713521A (en) | 2021-08-23 | 2021-08-23 | Bag type dust collector for coal conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110966248.3A CN113713521A (en) | 2021-08-23 | 2021-08-23 | Bag type dust collector for coal conveying belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113713521A true CN113713521A (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110966248.3A Pending CN113713521A (en) | 2021-08-23 | 2021-08-23 | Bag type dust collector for coal conveying belt |
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| Country | Link |
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| CN (1) | CN113713521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571042A (en) * | 2023-05-15 | 2023-08-11 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
-
2021
- 2021-08-23 CN CN202110966248.3A patent/CN113713521A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571042A (en) * | 2023-05-15 | 2023-08-11 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
| CN116571042B (en) * | 2023-05-15 | 2023-10-31 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
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