CN210522802U - Dust collecting device - Google Patents
Dust collecting device Download PDFInfo
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- CN210522802U CN210522802U CN201921308982.5U CN201921308982U CN210522802U CN 210522802 U CN210522802 U CN 210522802U CN 201921308982 U CN201921308982 U CN 201921308982U CN 210522802 U CN210522802 U CN 210522802U
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Abstract
The utility model provides a micro dust collecting device, which comprises a shell, wherein a smoke electric field channel of an electric dust collector is arranged in the shell, at least one dust collecting single piece is arranged in the electric field channel, the dust collecting single piece comprises at least one group of cathode wires and a dust collecting anode plate which are arranged in a matching way, and the dust collecting anode plate is arranged perpendicular to the smoke airflow direction; the dust collecting anode plate comprises a first group of dust collecting screen plates and a second group of dust collecting screen plates; the first group of dust collecting screen plates and the second group of dust collecting screen plates which are arranged in the direction perpendicular to the smoke dust airflow are used for collecting dust, so that multilayer dust collection of the dust is realized, and the dust collecting efficiency of the micro dust collecting device is greatly improved; under the condition that the electric field intensity is the same as the wind direction, the dust collecting screen plate perpendicular to the airflow direction has large dust escaping collecting force and high dust collecting rate, the application range of dust specific resistance is effectively improved, dust escaping from the cathode or the anode is effectively collected, meanwhile, the dust collecting anode plate vertically arranged has a flow equalizing effect on smoke, and the dust removing efficiency of the micro dust collecting device is further improved.
Description
Technical Field
The utility model relates to a micronic dust collecting equipment technical field especially relates to a micronic dust entrapment device.
Background
In order to deal with the environmental problem caused by high pollution, the nation puts more and more strict requirements on the dust emission concentration. In order to achieve lower dust concentration emissions, enterprises need better performing dust removal equipment. In the existing production process, dust removal equipment is various, wherein an electrostatic dust collector is one of the widely applied dust removal equipment. In the working process, the non-uniform high-voltage electric field is utilized to charge dust in the air flow, and the separation of air and dust is realized by means of electrostatic adsorption force.
An anode plate of the traditional electric dust collector is arranged in a direction parallel to an air flow, the direction of an electric field force is vertical to the anode plate (set as the X direction), the direction of the air flow (set as the Y direction) is vertical to the direction of the electric field force, and the force (set as the Z direction) for stripping the surface of the anode plate from dust during rapping is vertical to a section formed by the electric field force and wind power; according to practical test conditions, the traditional electric dust collector has a good dust collecting effect on dust with large particle size; however, dust with small particle size has poor dust collection effect, because the dust with small particle size has light weight, high specific resistance, difficult charge and small charge of the dust, the received electric field force is small and difficult to be adsorbed on the dust collection plate, so that the dust collection is difficult, and if the local wind speed is increased, the dust cannot be deposited on the dust collection plate. Therefore, a new type of dust collecting device is urgently needed in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a micronic dust entrapment device to the problem that exists among the background art has been solved.
In order to achieve the purpose, the utility model provides a micro dust collecting device, which comprises a shell, wherein a smoke electric field channel of an electric dust collector is arranged in the shell, at least one dust collecting single piece is arranged in the electric field channel, the dust collecting single piece comprises at least one group of cathode wires (corona wires) and a dust collecting anode plate which are arranged in a matching way, and the dust collecting anode plate is arranged perpendicular to the smoke airflow direction; the dust collecting anode plate comprises a first group of dust collecting screen plates and a second group of dust collecting screen plates; the first group of dust collecting screen plates comprise a plurality of first dust collecting screen plates which are arranged at intervals along the direction vertical to the smoke airflow; the second group of dust collecting screen plates comprise a plurality of second dust collecting screen plates, the second dust collecting screen plates are arranged perpendicular to the direction of the smoke dust airflow, and the second dust collecting screen plates are respectively arranged at intervals of the first dust collecting screen plates in a one-to-one correspondence manner; each group of cathode lines comprises a plurality of rows or a plurality of columns of cathode lines which are arranged in parallel, so that the electrification probability of dust is improved.
Preferably, each dust collection unit comprises 2-20 groups of matched cathode wires and dust collection anode plates, and a plurality of groups of matched cathode wires and dust collection anode plates are arranged at intervals along the length direction of the electric field channel.
Preferably, the dust collecting anode plate of the dust collecting single piece is a first type dust collecting structure, and a first dust collecting screen plate and a second dust collecting screen plate of the first type dust collecting structure are rectangular screen plates; or the dust collecting anode plate of the dust collecting single piece is specifically a second type dust collecting structure, the first dust collecting screen plate and the second dust collecting screen plate of the second type dust collecting structure are V-shaped screen plates, and the V-shaped openings of the V-shaped screen plates are arranged towards the inlet direction of the smoke airflow.
Preferably, all the dust collecting anode plates of the dust collecting single part are of a first type dust collecting structure or are of a second type dust collecting structure; or the dust collecting anode plate of the single dust collecting piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the first type dust collecting structure and the second type dust collecting structure are arranged in a staggered mode; or the dust collecting anode plate of the single dust collecting piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the plurality of first type dust collecting structures form a first dust collecting group; and a plurality of second type dust collection structures form a second dust collection group, and the first dust collection group is connected with the second dust collection group.
Preferably, in the dust collecting anode plate, the interval between two adjacent first dust collecting net plates is 50-200 mm.
Preferably, the mesh number of the dust collecting screen plate of the dust collecting anode plate is 50-500 meshes; the dust collecting anode plates adopt dust collecting screen plates with the same mesh number or different mesh numbers; the dust collecting screen plates with different meshes are adopted to accord with the principle that the mesh number of the dust collecting screen plate closer to the outlet smoke box is larger.
Preferably, a particulate dust collecting apparatus includes an ash hopper provided at a bottom of the housing.
Preferably, one end of the shell is provided with an inlet smoke box, the other end of the shell is provided with an outlet smoke box, and the inlet smoke box and the outlet smoke box are used for being connected with a box body of the smoke channel.
Preferably, the number of dust collecting single pieces is 2-5.
Preferably, each group of dust collecting anode plates is provided with a mechanical rapping dust cleaning device or an electromagnetic vibration dust cleaning device; the ash cleaning device is arranged on a suspension beam at the top of the dust collecting anode plate or a connecting beam at the bottom of the dust collecting anode plate; the mechanical vibration ash removal device or the electromagnetic vibration ash removal device can be used for regularly removing deposited ash on the dust collection anode plate, and the collected ash is discharged and concentrated through the ash bucket, so that the ventilation resistance of the dust collection screen plate can be reduced, and the dust collection effect can be improved.
The utility model discloses following beneficial effect has:
the utility model provides a micro dust collecting device, which comprises a shell, wherein a smoke electric field channel of an electric dust collector is arranged in the shell, at least one dust collecting single piece is arranged in the electric field channel, the dust collecting single piece comprises at least one group of cathode wires and a dust collecting anode plate which are arranged in a matching way, and the dust collecting anode plate is arranged perpendicular to the smoke airflow direction; the dust collecting anode plate comprises a first group of dust collecting screen plates and a second group of dust collecting screen plates; the first group of dust collecting screen plates and the second group of dust collecting screen plates which are arranged in the direction perpendicular to the smoke dust airflow are used for collecting dust, so that multilayer dust collection of the dust is realized, and the dust collecting efficiency of the micro dust collecting device is greatly improved; under the condition that the electric field intensity is the same as the wind direction, the dust collecting screen plate perpendicular to the airflow direction has large dust escaping collecting force and high dust collecting rate, the application range of dust specific resistance is effectively improved, dust escaping from the cathode or the anode is effectively collected, meanwhile, the dust collecting anode plate vertically arranged has a flow equalizing effect on smoke, and the dust removing efficiency of the micro dust collecting device is further improved.
The dust collecting device can be directly formed by reforming or building the tail end of the traditional electric dust remover, so that the floor area and the manufacturing cost are reduced by utilizing a field and original dust removing equipment more reasonably, and the increasingly severe environmental protection requirement can be met.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of an arrangement structure of dust collecting anode plates of a conventional electric dust collector;
FIG. 2 is a schematic structural view of a dust collecting device of the present invention;
FIG. 3 is a schematic diagram of the dust stress of a conventional electric dust collector and a dust collecting device of the present invention;
FIG. 4 is a schematic view showing the arrangement of a dust collecting anode plate of the particulate dust collecting apparatus in this example 1;
FIG. 5 is a schematic view showing the arrangement of a dust collecting anode plate of the dust collecting apparatus in this example 2;
FIG. 6 is a schematic view showing the arrangement of a dust collecting anode plate of the particulate dust collecting apparatus in this example 3;
FIG. 7 is a schematic view showing the arrangement of a dust collecting anode plate of the particulate dust collecting apparatus according to example 3;
the dust collecting device comprises a shell 1, a shell 2, a dust collecting single piece 3, a cathode wire 4, a dust collecting anode plate 4.1, a first dust collecting screen plate 4.2, a second dust collecting screen plate 5, an ash bucket 6, an inlet smoke box 7 and an outlet smoke box.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 4, a dust particle collecting device includes a housing, one end of which is provided with an inlet smoke box (for connecting a smoke channel box), and the other end of which is provided with an outlet smoke box; a smoke electric field channel of the electric dust collector is arranged in the shell, at least one dust collecting single piece is arranged in the electric field channel, the dust collecting single piece comprises at least one group of cathode wires (corona wires) and dust collecting anode plates which are arranged in a matching mode, the cathode wires and the dust collecting anode plates are alternately arranged, and the dust collecting anode plates are arranged perpendicular to the smoke airflow direction; the dust collecting anode plate comprises a first group of dust collecting screen plates and a second group of dust collecting screen plates; the first group of dust collecting screen plates comprise a plurality of first dust collecting screen plates which are arranged at intervals along the direction vertical to the smoke airflow; the second group of dust collecting screen plates comprise a plurality of second dust collecting screen plates, the second dust collecting screen plates are arranged perpendicular to the direction of the smoke dust airflow, and the second dust collecting screen plates are respectively arranged at intervals of the first dust collecting screen plates in a one-to-one correspondence manner; each group of cathode lines comprises a plurality of rows or a plurality of columns of cathode lines which are arranged in parallel, so that the electrification probability of dust is improved; and anode wires are arranged on the first dust collecting screen plate and the second dust collecting screen plate of the dust collecting anode plate, and the bottom of the shell is communicated with a dust collecting hopper.
Preferably, the number of the dust collecting single pieces is 2-5, each dust collecting single piece comprises 2-20 groups of matched cathode wires and dust collecting anode plates, multiple groups of matched cathode wires and dust collecting anode plates are arranged at intervals along the length direction of the electric field channel, and the interval between two adjacent groups of matched cathode wires and dust collecting anode plates is 180 mm and 400mm (the transverse interval along the smoke airflow direction, such as the distance between the second dust collecting screen plate of the previous group and the cathode wire of the next group).
The dust collecting screen plate of the dust collecting anode plate is made of a stainless steel wire mesh, and the mesh number of the stainless steel wire mesh is 50-500 meshes; the dust collecting screen plates of the dust collecting anode plate are all of the same mesh number or different mesh numbers; the dust collecting screen plates with different meshes are adopted to accord with the principle that the mesh number of the dust collecting screen plate closer to the outlet smoke box is larger (for example, the mesh number of the dust collecting screen plate of the first group of dust collecting anode plates is 100, and the mesh number of the dust collecting screen plate of the second group of dust collecting anode plates is 120); the design principle enables dust in the electric field channel to be adsorbed and absorbed by the dust collection screen plate layer by layer according to the particle size, and the dust collection effect is improved.
In the embodiment, the dust collecting anode plate of the dust collecting unit is specifically a first type dust collecting structure, and a first dust collecting screen plate and a second dust collecting screen plate of the first type dust collecting structure are both rectangular screen plates; in the same group of dust collecting anode plates, the interval between two adjacent first dust collecting screen plates is 50-200mm, and the mesh numbers of the first dust collecting screen plates and the second dust collecting screen plates of the same group of dust collecting anode plates can be the same or different; and the mesh number of the second dust collecting screen plate is larger than that of the first dust collecting screen plate at different times.
A mechanical vibration ash removal device or an electromagnetic vibration ash removal device is arranged on the suspension beam at the top of each group of dust collection anode plates; the mechanical vibration ash removal device or the electromagnetic vibration ash removal device can be used for regularly removing deposited ash on the dust collection anode plate, and the collected ash is discharged and concentrated through the ash bucket, so that the ventilation resistance of the dust collection screen plate is reduced, and the dust collection effect is improved.
It should be noted that the power of the smoke flowing through the electric field channel in the housing is provided by an additional induced draft fan, and the induced draft fan adopts variable frequency to adjust the air volume pressure, so that the wind power requirements under different working conditions are met; the mechanical vibration ash cleaning device or the electromagnetic vibration ash cleaning device is designed according to the traditional electric dust collector; the power supply mode of the cathode wire and the anode wire on the dust collecting anode plate refers to the design of the traditional electric dust collector.
Example 2:
referring to fig. 1 and 5, the difference between this embodiment and embodiment 1 is that the dust collecting anode plate in this embodiment is a second type dust collecting structure, the first dust collecting screen plate and the second dust collecting screen plate of the second type dust collecting structure are V-shaped screen plates, and the V-shaped openings of the V-shaped screen plates are arranged toward the inlet direction of the flue gas flow.
Example 3:
referring to fig. 1, 6 and 7, the present embodiment differs from embodiment 1 in that the dust collecting anode plate in the present embodiment includes a first type dust collecting structure and a second type dust collecting structure; only different from the arrangement mode of the first type dust collection structure and the second type dust collection structure.
The dust collecting anode plate of the dust collecting single piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the first type dust collecting structure and the second type dust collecting structure are arranged in a staggered mode; or the dust collecting anode plate of the single dust collecting piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the plurality of first type dust collecting structures form a first dust collecting group; a plurality of second type dust collecting structures form a second dust collecting group; and the first dust collection group is connected with the second dust collection group.
For industrial kiln dust sampling, as shown in table 1:
table 1: dust particle size sampling meter for industrial kiln
The dust has small particle size, light weight, high specific resistance and difficult charge, so that the dust has small charge and small electric field force and is difficult to adsorb on a dust collection anode plate; meanwhile, if the local wind speed is high, the wind cannot be deposited on the polar plate, and dust collection is difficult.
Through practical tests, the dust removal treatment of the industrial kiln is carried out by adopting the traditional electric dust remover, and the dust emission concentration of the industrial kiln can be controlled to be 20-30mg/m3(ii) a According to the national current dust emission standard, the dust emission concentration is not more than 20mg/m3(ii) a The traditional electric dust remover does not meet the relevant national standard; however, by adding a group (one piece for collecting dust) at the end of the traditional dust remover, the dust emission concentration of the industrial kiln can be reduced by any kind of micro dust collecting device related to all the embodiments of the inventionTo 10mg/m3The following. By completely using the fine dust collecting device of example 1, the dust emission concentration of the industrial kiln can be controlled to 3-5mg/m3(ii) a By completely using the fine dust collecting device of example 2, the dust emission concentration of the industrial kiln can be controlled to 5-8mg/m3(ii) a By completely using the fine dust collecting device of example 3, the dust emission concentration of the industrial kiln can be controlled to 4-6mg/m3。
The dust collecting device can be directly formed by modifying (arranging at the tail end of the traditional electric dust collector) or building at the tail end of the traditional electric dust collector, so that a field and original dust collecting equipment can be more reasonably utilized, the floor area and the manufacturing cost are reduced, and increasingly severe environmental protection requirements can be met; in addition, the first group of dust collecting screen plates and the second group of dust collecting screen plates which are arranged in the direction perpendicular to the smoke dust airflow are used for collecting dust, so that multilayer dust collection of dust is realized, and the dust collecting efficiency of the micro dust collecting device is greatly improved; under the condition that the electric field intensity is the same as the wind direction, the dust collecting screen plate perpendicular to the airflow direction has large dust escaping collecting force and high dust collecting rate, the application range of dust specific resistance is effectively improved, dust escaping from the cathode or the anode is effectively collected, meanwhile, the dust collecting anode plate vertically arranged has a flow equalizing effect on smoke, and the dust removing efficiency of the micro dust collecting device is further improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A micro dust collecting device is characterized by comprising a shell, wherein a smoke electric field channel of an electric dust collector is arranged in the shell, at least one dust collecting single piece is arranged in the electric field channel, the dust collecting single piece comprises at least one group of cathode wires and a dust collecting anode plate which are arranged in a matched mode, and the dust collecting anode plate is perpendicular to the smoke airflow direction; the dust collecting anode plate comprises a first group of dust collecting screen plates and a second group of dust collecting screen plates; the first group of dust collecting screen plates comprise a plurality of first dust collecting screen plates which are arranged at intervals along the direction vertical to the smoke airflow; the second group of dust collecting screen plates comprise a plurality of second dust collecting screen plates, the second dust collecting screen plates are perpendicular to the direction of the smoke dust airflow, and the second dust collecting screen plates are respectively arranged at intervals of the first dust collecting screen plates in a one-to-one correspondence mode.
2. A particulate dust collecting apparatus according to claim 1, wherein each dust collecting unit includes 2 to 20 groups of the cathode wires and the dust collecting anode plates, and a plurality of groups of the cathode wires and the dust collecting anode plates are arranged at intervals along the length direction of the electric field channel.
3. The device for trapping the micro-dust as claimed in claim 1, wherein the dust-collecting anode plate of the dust-collecting single piece is a first type dust-collecting structure, and the first dust-collecting screen plate and the second dust-collecting screen plate of the first type dust-collecting structure are both rectangular screen plates; or the dust collecting anode plate of the dust collecting single piece is specifically a second type dust collecting structure, the first dust collecting screen plate and the second dust collecting screen plate of the second type dust collecting structure are V-shaped screen plates, and the V-shaped openings of the V-shaped screen plates are arranged towards the inlet direction of the smoke airflow.
4. A particulate dust collecting device according to claim 3, wherein the dust collecting anode plates of the dust collecting single pieces are all of a first type dust collecting structure or are all of a second type dust collecting structure;
or the dust collecting anode plate of the single dust collecting piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the first type dust collecting structure and the second type dust collecting structure are arranged in a staggered mode;
or the dust collecting anode plate of the single dust collecting piece comprises at least one first type dust collecting structure and at least one second type dust collecting structure, and the plurality of first type dust collecting structures form a first dust collecting group; and a plurality of second type dust collection structures form a second dust collection group, and the first dust collection group is connected with the second dust collection group.
5. A fine dust collecting device according to any one of claims 1 to 4, wherein in the dust collecting anode plate, the interval between two adjacent first dust collecting net plates is 50 to 200 mm.
6. A tiny dust collecting device according to claim 5, wherein the mesh number of the dust collecting screen plate of the dust collecting anode plate is 50-500 meshes; the dust collecting anode plates adopt dust collecting screen plates with the same mesh number or different mesh numbers; the dust collecting screen plates with different meshes are adopted to accord with the principle that the mesh number of the dust collecting screen plate closer to the outlet smoke box is larger.
7. A particulate dust collecting apparatus as claimed in claim 6, further comprising an ash hopper provided at the bottom of the casing.
8. A particulate trap apparatus according to claim 7, wherein the casing is provided with an inlet smoke box at one end and an outlet smoke box at the other end.
9. A particulate dust collecting apparatus according to claim 7 wherein the number of dust collecting elements is 2 to 5.
10. A tiny dust collecting device according to claim 9, wherein each group of dust collecting anode plates is provided with a mechanical rapping dust cleaning device or an electromagnetic vibration dust cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308982.5U CN210522802U (en) | 2019-08-13 | 2019-08-13 | Dust collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308982.5U CN210522802U (en) | 2019-08-13 | 2019-08-13 | Dust collecting device |
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| CN210522802U true CN210522802U (en) | 2020-05-15 |
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| CN201921308982.5U Active CN210522802U (en) | 2019-08-13 | 2019-08-13 | Dust collecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328054A (en) * | 2019-08-13 | 2019-10-15 | 长沙天瑞能源科技有限公司 | A kind of tiny dust collection device |
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2019
- 2019-08-13 CN CN201921308982.5U patent/CN210522802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328054A (en) * | 2019-08-13 | 2019-10-15 | 长沙天瑞能源科技有限公司 | A kind of tiny dust collection device |
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