CN113634374B - Annular composite dust removing device and dust removing method - Google Patents
Annular composite dust removing device and dust removing method Download PDFInfo
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- CN113634374B CN113634374B CN202111072382.5A CN202111072382A CN113634374B CN 113634374 B CN113634374 B CN 113634374B CN 202111072382 A CN202111072382 A CN 202111072382A CN 113634374 B CN113634374 B CN 113634374B
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- dust
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- dust collecting
- plate
- collecting polar
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- 239000000428 dust Substances 0.000 title claims abstract description 348
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000003546 flue gas Substances 0.000 claims abstract description 61
- 238000011010 flushing procedure Methods 0.000 claims abstract description 52
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 10
- 150000001450 anions Chemical class 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 3
- 239000003500 flue dust Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 abstract description 2
- 239000003517 fume Substances 0.000 description 7
- 230000005684 electric field Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
Abstract
The utility model provides a compound dust collector of ring direction, relate to dust collecting equipment technical field, including the dust removal support body, the dust removal support body is controlled the end and is provided with flue gas import and flue gas export respectively, dust removal support body bottom is provided with sewage outlet, be provided with main dust collection polar plate in the dust removal support body, assist dust collection polar plate, high pressure discharge electrode and dust flushing component, main dust collection polar plate sets up along dust removal support body length direction, and main dust collection polar plate has a plurality of, and parallel interval sets up, high pressure discharge electrode is located between the main dust collection polar plate, and set up perpendicularly, assist dust collection polar plate and main dust collection polar plate set up perpendicularly, assist dust collection polar plate includes plate frame and face, plate frame and dust removal support body fixed connection, the face is fixed to be set up in the plate frame, and the face is regular lattice form, dust flushing component sets up in main dust collection polar plate and assist dust collection polar plate top, through the compound dust collection of ring direction, the entrapment ability to the dust and work efficiency have been improved. The invention also provides a method for dedusting by using the annular composite dedusting device.
Description
Technical Field
The invention relates to the technical field of dust removal equipment, in particular to a circumferential composite dust removal device and a dust removal method.
Background
With the continuous aggravation of atmospheric environmental pollution, the requirements on the fume emission of industrial production are stricter, and particularly aiming at dust emission, the national export of the coal-fired power plant of a household has the emission limit standard of atmospheric pollutants.
Wet dust collectors (WESP) are generally adopted for flue gas dust removal, and are used as flue gas terminal treatment equipment of an atmospheric pollutant control system, so that the wet dust collectors are widely applied to coal-fired power plants, and in the existing plate-type wet dust collectors, the dust removal efficiency of flue gas is low, and in the dust removal process, part of smoke dust escapes under the action of induced air, so that continuous spray water is required for achieving higher dust removal efficiency, and higher water consumption and energy consumption are required.
Disclosure of Invention
In view of this, it is necessary to provide an annular composite dust collector with high dust collection efficiency and water saving.
It is also necessary to provide a dust removal method.
The utility model provides a compound dust collector of hoop, includes the dust removal support body, the dust removal support body is provided with flue gas import and flue gas export about the end respectively, dust removal support body bottom is provided with the sewage export, be provided with main dust collection polar plate in the dust removal support body, assist dust collection polar plate, high pressure discharge electrode and dust flushing assembly, main dust collection polar plate is followed dust removal support body length direction sets up, just main dust collection polar plate has a plurality of to parallel interval sets up, high pressure discharge electrode is located between the main dust collection polar plate, and set up perpendicularly, assist dust collection polar plate with main dust collection polar plate sets up perpendicularly, assist dust collection polar plate package rubbing board frame and face, the board frame with dust removal support body fixed connection, the face fixed set up in the board frame, just the face is regular lattice form, dust flushing assembly set up in main dust collection polar plate and assist dust collection polar plate top.
Preferably, the bottom of the dust removing frame body is arranged to be in an inverted cone shape, and the sewage outlet is positioned at the bottom of the cone shape.
Preferably, the auxiliary dust collecting polar plate comprises a first auxiliary dust collecting polar plate, a second auxiliary dust collecting polar plate and a third auxiliary dust collecting polar plate, wherein the first auxiliary dust collecting polar plate, the second auxiliary dust collecting polar plate and the third auxiliary dust collecting polar plate are arranged in a stepped manner from top to bottom in sequence, and the first auxiliary dust collecting polar plate is attached to the main dust collecting polar plate.
Preferably, the dust flushing assembly comprises a main plate flushing member and an auxiliary plate flushing member, wherein the main plate flushing member is positioned above the main dust collecting polar plate, and the auxiliary plate flushing member is positioned above the auxiliary dust collecting polar plate.
Preferably, the main board flushing member is in communication with the auxiliary board flushing member.
Preferably, the water outlet end of the main plate flushing piece is provided with a hollow cone nozzle.
Preferably, the auxiliary plate flushing member is located right above the first auxiliary dust collecting polar plate, the second auxiliary dust collecting polar plate and the third auxiliary dust collecting polar plate.
A dust removal method for realizing dust removal by using the annular composite dust removal device, the dust removal method comprising the following steps:
the flue gas is introduced into the dust removing frame body from a flue gas inlet of the dust removing frame body;
after entering from the flue gas inlet, the flue gas flows towards the direction of the main dust collecting polar plates and passes through the main dust collecting polar plates, when passing through the main dust collecting polar plates, the high-voltage discharge electrode discharges to ionize air to generate cations and anions, so that the flue gas and dust flowing through the main dust collecting polar plates adsorb the anions and are charged;
when flowing along with the flue gas, the charged dust is adsorbed to the main dust collecting polar plate with positive electricity, while part of the charged dust is not adsorbed to the main dust collecting polar plate and continuously flows forwards along with the flue gas to escape;
the electric dust which escapes from the flowing way flows out from between the main dust collecting polar plates and passes through the auxiliary dust collecting polar plates which are arranged vertically to the main dust collecting polar plates, wherein the auxiliary dust collecting polar plates are positively charged, and when the electric dust passes through the auxiliary dust collecting polar plates along with the flue gas, the electric dust collides with grids on the auxiliary dust collecting polar plates and is adsorbed on the auxiliary dust collecting polar plates, and the flue gas passes through the grids and flows to a flue gas outlet;
in the flue gas dust removal process, the main plate flushing part and the auxiliary plate flushing part are opened to intermittently flush the main dust collecting polar plate and the auxiliary dust collecting polar plate, so that charged dust is adhered to the surface of water drops, and is settled to the bottom of the dust removal frame body under the action of gravity and discharged from the sewage outlet.
Preferably, the flue gas flowing through the auxiliary dust collecting polar plate can enter the next group of main dust collecting polar plate and auxiliary dust collecting polar plate to carry out dust removal for multiple times.
The invention adopts the technical proposal and has the beneficial effects that: through setting up main dust collecting polar plate and assisting the dust collecting polar plate in this device for the flue gas is after main dust collecting polar plate removes dust, and the rethread assists the dust collecting polar plate to catch the dust of escape, and through setting up a plurality of main dust collecting polar plates and assisting the dust collecting polar plate, forms the compound dust removal of hoop, thereby has improved the entrapment ability to the dust, very big improvement work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a schematic structural view of another view of the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a plan view of fig. 4.
Fig. 6 is a schematic structural diagram of an auxiliary collecting plate in the present invention.
In the figure: the dust removing frame body 1, the flue gas inlet 11, the flue gas outlet 12, the sewage outlet 13, the main dust collecting polar plate 2, the auxiliary dust collecting polar plate 3, the plate frame 301, the plate surface 302, the first auxiliary dust collecting polar plate 31, the second auxiliary dust collecting polar plate 32, the third auxiliary dust collecting polar plate 33, the high-voltage discharge electrode 4, the dust washing component 5, the main plate washing piece 51, the hollow cone nozzle 511 and the auxiliary plate washing piece 52.
Detailed Description
Referring to fig. 1 to 6, an embodiment of the present invention provides an annular composite dust removing device, which includes a dust removing frame 1.
The left end and the right end of the dust removal frame body 1 are respectively provided with a flue gas inlet 11 and a flue gas outlet 12, the bottom of the dust removal frame body 1 is provided with a sewage outlet 13, the dust removal frame body 1 is internally provided with a main dust collection pole plate 2, an auxiliary dust collection pole plate 3, a high-voltage discharge electrode 4 and a dust flushing component 5, the main dust collection pole plate 2 is arranged along the length direction of the dust removal frame body 1, the main dust collection pole plates 2 are provided with a plurality of high-voltage discharge electrodes 4 at intervals in parallel, the high-voltage discharge electrodes 4 are arranged between the main dust collection pole plates 2 and are vertically upwards arranged, the auxiliary dust collection pole plates 3 are vertically arranged with the main dust collection pole plates 2, the auxiliary dust collection pole plates 3 comprise a plate frame 301 and a plate surface 302, the plate frame 301 is fixedly connected with the dust removal frame body 1, the plate surface 302 is fixedly arranged in the plate frame 301, and the plate surface 302 is in a regular grid shape, and the dust flushing component 5 is arranged above the main dust collection pole plates 2 and the auxiliary dust collection pole plates 3.
When industrial production is carried out, generated flue gas enters from a flue gas inlet 11 under the action of an induced draft fan and uniformly passes through a main dust collecting polar plate 2 and an auxiliary dust collecting polar plate 3, and in order to eliminate dust in the flue gas more thoroughly, a plurality of main dust collecting polar plates 2 and auxiliary dust collecting polar plates 3 can be arranged to form a composite smoke dust eliminating device, wherein the main dust collecting polar plates 2 are formed by assembling a plurality of Z-shaped or C-shaped stainless steel polar plates, and the auxiliary dust collecting polar plates 3 are formed by overlapping corrosion-resistant stainless steel wires with different diameters in a multilayer braiding manner;
because the auxiliary dust collecting polar plate 3 is perpendicular to the main dust collecting polar plate 2, namely the auxiliary dust collecting polar plate 3 is perpendicular to the fume flowing direction, when fume entrains dust to flow forward, the fume and dust need to pass through the auxiliary dust collecting polar plate 3 and collide with the grid plate surface 302 of the auxiliary dust collecting polar plate 3 in the passing process, because the flowing direction of the dust is the same as the approaching direction of the electric field force at the tail end of the main dust collecting polar plate 2 and the acting direction of the induced air force at the fume outlet 12 is also the same, the collision of the dust and the grid plate surface 302 is accelerated, the charged dust is quickly adsorbed on the grid of the positively charged auxiliary dust collecting polar plate 3, the dust removing efficiency is improved, the fume after dust removing can flow out from the grid holes, and the fume flowing is not influenced when the dust removing efficiency is improved.
When the dust in the flue gas is adsorbed on the main dust collecting polar plate 2 and the auxiliary dust collecting polar plate 3, the dust flushing component 5 is opened, and the main dust collecting polar plate 2 and the auxiliary dust collecting polar plate 3 are intermittently flushed, namely, when the dust is covered on the surface of the integrated polar plate, the dust particles are fused into water drops or stuck on the surface of the water drops, fall into the bottom of the dust removing frame body 1 along with the water drops, and are discharged from the sewage outlet 13.
Further, the dust removal support body 1 bottom sets up to the back taper, and sewage outlet 13 is located the toper bottom, and conical bottom makes sewage can assemble a department, the collection of the sewage of being convenient for discharges.
Further, the auxiliary dust collecting pole plate 3 comprises a first auxiliary dust collecting pole plate 31, a second auxiliary dust collecting pole plate 32 and a third auxiliary dust collecting pole plate 33, the first auxiliary dust collecting pole plate 31, the second auxiliary dust collecting pole plate 32 and the third auxiliary dust collecting pole plate 33 are arranged in a step from top to bottom in sequence, and the first auxiliary dust collecting pole plate 31 is attached to the main dust collecting pole plate 2.
After the flue gas passes through the auxiliary dust collecting polar plate 3, a large amount of dust is adhered to the grid surface, the dust is required to be washed by water, in order to enable the dust of the auxiliary dust collecting polar plate 3 to be washed cleanly, the auxiliary dust collecting polar plate 3 is set to be a first auxiliary dust collecting polar plate 31, a second auxiliary dust collecting polar plate 32 and a third auxiliary dust collecting polar plate, each dust collecting polar plate is washed respectively, so that the aim of washing cleanly is achieved, and the step arrangement avoids the washed sewage to flow through other auxiliary dust collecting polar plates 3 again.
Further, the dust flushing assembly 5 includes a main plate flushing member 51 and an auxiliary plate flushing member 52, the main plate flushing member 51 is located above the main dust collecting electrode plate 2, the auxiliary plate flushing member 52 is located above the auxiliary dust collecting electrode plate 3, and different flushing members are respectively arranged to flush the main dust collecting electrode plate 2 and the auxiliary dust collecting electrode plate 3.
Further, the main plate flushing member 51 is communicated with the auxiliary plate flushing member 52, and the main plate flushing member 51 and the auxiliary plate flushing member 52 are communicated for easy installation and water inflow control.
Further, the water outlet end of the main plate flushing member 51 is provided with a hollow cone nozzle 511.
The main board flushing part 51 of the main dust collecting polar plate 2 is positioned above the polar plate, a hollow cone nozzle 511 is selected, and the flushing angle of the nozzle is adjusted, so that the surface of the polar plate can be flushed during flushing, the coverage area is larger, and the flushing is cleaner.
Further, the auxiliary plate flushing member 52 is located directly above the first auxiliary dust collecting electrode plate 31, the second auxiliary dust collecting electrode plate 32 and the third auxiliary dust collecting electrode plate 33, and the auxiliary plate flushing member 52 flushes each auxiliary dust collecting electrode plate 3, respectively.
The embodiment of the invention also provides a dust removing method, which uses the annular composite dust removing device provided by the embodiment of the invention to realize dust removal, and the dust removing method comprises the following steps:
the flue gas is introduced into the dust removal frame body 1 from a flue gas inlet 11 of the dust removal frame body 1;
after entering from the flue gas inlet 11, the flue gas flows towards the direction of the main dust collecting polar plates 2 and passes through the main dust collecting polar plates 2, when passing through the space between the main dust collecting polar plates 2, the high-voltage discharge electrode 4 discharges to ionize air to generate cations and anions, so that the flue gas and dust flowing through the space between the main dust collecting polar plates 2 adsorb anions and are charged;
when flowing along with the flue gas, the charged dust is adsorbed onto the main dust collecting polar plate 2 with positive electricity, and under the action of the induced wind force of the flue gas outlet 12, the induced wind force is larger than the electric field force, so that part of the charged dust is not adsorbed onto the main dust collecting polar plate 2 and continuously flows forwards along with the flue gas to escape;
the electric dust which escapes from the flowing way flows out from between the main dust collecting polar plates 2 and passes through the auxiliary dust collecting polar plates 3 which are arranged vertically to the main dust collecting polar plates 2 under the action of the electric field force and the induced air force at the tail ends of the main dust collecting polar plates 2, wherein the auxiliary dust collecting polar plates 3 are positively charged, the electric dust is rapidly collided with grids on the auxiliary dust collecting polar plates 3 when passing through the auxiliary dust collecting polar plates 3 along with the flue gas, and is adsorbed on the auxiliary dust collecting polar plates 3, and the flue gas passes through the grids and flows to the flue gas outlet 12;
in the flue gas dust removal process, the main plate flushing part 51 and the auxiliary plate flushing part 52 are opened to intermittently flush the main dust collecting polar plate 2 and the auxiliary dust collecting polar plate 3, so that charged dust is adhered to the surface of water drops, and the charged dust is settled to the bottom of the dust removal frame body 1 under the action of gravity and is discharged from the sewage outlet 13.
Further, the flue gas flowing through the auxiliary dust collecting polar plate 3 can enter the next group of main dust collecting polar plate 2 and auxiliary dust collecting polar plate 3 to carry out dust removal for multiple times.
The collection capability of fine particles can be improved through the combination of the main and auxiliary dust collection electric fields, namely, the net-shaped auxiliary dust collection polar plates 3 electrostatic fields which are perpendicular to the flue gas direction and are arranged up and down in a staggered manner are added behind the electrostatic field of each stage of main dust collection polar plate 2, so that the dust collection efficiency of the polar plate type dust remover is improved, the physical collision interception of the fine particles is completed, and the dust collection effect is stable and obvious;
because of the reinforced dust removal effect of the auxiliary dust collecting polar plate 3, the dust collection efficiency is improved, the effective length of the main dust collecting polar plate 2 and the effective width of the auxiliary dust collecting polar plate are controlled, and the dust collection efficiency of the annular composite dust collector can be further improved.
When the device is used, the smoke inlet 11 is connected with the exhaust port of the smoke generating device, smoke enters the dust removing frame body 1 from the smoke inlet 11, the high-voltage discharge electrode 4 discharges to ionize air to form positive and negative ions, dust particles in the smoke absorb negative ions, and when the smoke flows through the main dust collecting polar plate 2, the dust particles with the negative ions are absorbed on the main dust collecting polar plate 2 with positive electricity;
part of dust particles are not adsorbed onto the main dust collecting polar plate 2 under the action of induced air force, and continue to flow forward for escape, when the dust carried by the flue gas flows forward, the flue gas and the dust need to pass through the auxiliary dust collecting polar plate 3, and collide with the grid plate surface 302 of the auxiliary dust collecting polar plate 3 in the passing process, because the flowing direction of the dust is the same as the approaching direction of the electric field force at the tail end of the main dust collecting polar plate 2, and the acting direction of the induced air force at the flue gas outlet 12 is also the same, the collision of the dust and the flue gas with the grid plate surface 302 is accelerated, wherein the dust is adsorbed onto the grid of the auxiliary dust collecting polar plate 3 in the collision process, and the flue gas flows out from the grid holes;
after the flue gas passes through a period of time, the main board flushing part 51 and the auxiliary board flushing part 52 are opened to intermittently flush the main dust collecting polar plate 2 and the auxiliary dust collecting polar plate 3, and the sewage after flushing flows into the conical groove at the bottom of the dust removing frame body 1 and then flows out from the sewage outlet 13.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a compound dust collector of hoop which characterized in that: the dust collection device comprises a dust collection frame body, wherein a smoke inlet and a smoke outlet are respectively arranged at the left end and the right end of the dust collection frame body, a sewage outlet is arranged at the bottom of the dust collection frame body, a main dust collection pole plate, an auxiliary dust collection pole plate, a high-voltage discharge electrode and a dust flushing component are arranged in the dust collection frame body, the main dust collection pole plate is arranged along the length direction of the dust collection frame body, the main dust collection pole plates are in a plurality of and parallel and spaced, the high-voltage discharge electrode is arranged between the main dust collection pole plates and is vertically upwards arranged, the auxiliary dust collection pole plates are vertically arranged with the main dust collection pole plates, the auxiliary dust collection pole plates comprise a plate frame and a plate surface, the plate frame is fixedly connected with the dust collection frame body, the plate surface is fixedly arranged in the plate frame, and the plate surface is in a regular grid shape, and the dust flushing component is arranged above the main dust collection pole plates and the auxiliary dust collection pole plates. The dust flushing assembly comprises a main board flushing piece and an auxiliary board flushing piece, the auxiliary dust collecting polar plate comprises a first auxiliary dust collecting polar plate, a second auxiliary dust collecting polar plate and a third auxiliary dust collecting polar plate, the first auxiliary dust collecting polar plate, the second auxiliary dust collecting polar plate and the third auxiliary dust collecting polar plate are arranged in a step manner from top to bottom in sequence, and the first auxiliary dust collecting polar plate is attached to the main dust collecting polar plate; the auxiliary plate flushing piece is positioned right above the first auxiliary dust collecting polar plate, the second auxiliary dust collecting polar plate and the third auxiliary dust collecting polar plate.
2. The circumferential composite dust collector of claim 1, wherein: the bottom of the dust removing frame body is arranged to be in an inverted cone shape, and the sewage outlet is positioned at the bottom of the cone shape.
3. The circumferential composite dust collector of claim 1, wherein: the main board flushing piece is positioned above the main dust collecting polar plate.
4. A circumferential composite dust collector according to claim 3, wherein: the main board flushing part is communicated with the auxiliary board flushing part.
5. The circumferential composite dust collector of claim 4, wherein: the water outlet end of the main board flushing piece is provided with a hollow cone nozzle.
6. A dust removal method, characterized in that: the dust removing method realizes dust removal by using the annular composite dust removing device of any one of claims 1 to 5, and the dust removing method comprises the following steps:
the flue gas is introduced into the dust removing frame body from a flue gas inlet of the dust removing frame body;
after entering from the flue gas inlet, the flue gas flows towards the direction of the main dust collecting polar plates and passes through the main dust collecting polar plates, when passing through the main dust collecting polar plates, the high-voltage discharge electrode discharges to ionize air to generate cations and anions, so that the flue gas and dust flowing through the main dust collecting polar plates adsorb the anions and are charged;
when flowing along with the flue gas, the charged dust is adsorbed to the main dust collecting polar plate with positive electricity, while part of the charged dust is not adsorbed to the main dust collecting polar plate and continuously flows forwards along with the flue gas to escape;
the electric dust which escapes from the flowing way flows out from between the main dust collecting polar plates and passes through the auxiliary dust collecting polar plates which are arranged vertically to the main dust collecting polar plates, wherein the auxiliary dust collecting polar plates are positively charged, and when the electric dust passes through the auxiliary dust collecting polar plates along with the flue gas, the electric dust collides with grids on the auxiliary dust collecting polar plates and is adsorbed on the auxiliary dust collecting polar plates, and the flue gas passes through the grids and flows to a flue gas outlet;
in the flue gas dust removal process, the main plate flushing part and the auxiliary plate flushing part are opened to intermittently flush the main dust collecting polar plate and the auxiliary dust collecting polar plate, so that charged dust is adhered to the surface of water drops, and is settled to the bottom of the dust removal frame body under the action of gravity and discharged from the sewage outlet.
7. The dust removing method according to claim 6, wherein: the flue gas flowing through the auxiliary dust collecting polar plate can enter the next group of main dust collecting polar plate and auxiliary dust collecting polar plate to carry out dust removal for multiple times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072382.5A CN113634374B (en) | 2021-09-14 | 2021-09-14 | Annular composite dust removing device and dust removing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072382.5A CN113634374B (en) | 2021-09-14 | 2021-09-14 | Annular composite dust removing device and dust removing method |
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| Publication Number | Publication Date |
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| CN113634374A CN113634374A (en) | 2021-11-12 |
| CN113634374B true CN113634374B (en) | 2024-04-02 |
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| CN202111072382.5A Active CN113634374B (en) | 2021-09-14 | 2021-09-14 | Annular composite dust removing device and dust removing method |
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| CN204220293U (en) * | 2014-11-05 | 2015-03-25 | 国电科学技术研究院 | A kind of gathering-device of flue gas purification system |
| CN105195318A (en) * | 2015-11-12 | 2015-12-30 | 解标 | Two-dimensional anode dust collection electric precipitator |
| CN206455859U (en) * | 2017-01-17 | 2017-09-01 | 江苏嘉瑞科技有限公司 | A kind of removal of impurities thoroughly cable insulation material sorting unit |
| DE102019101885A1 (en) * | 2019-01-25 | 2020-07-30 | Oliver Schmitz | Electro separator in step form |
| CN211026721U (en) * | 2019-10-10 | 2020-07-17 | 宁波威霖住宅设施有限公司 | Inclined dust collection module purification device |
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