CN116351567A - Wet electrostatic dust collection system - Google Patents
Wet electrostatic dust collection system Download PDFInfo
- Publication number
- CN116351567A CN116351567A CN202310283987.1A CN202310283987A CN116351567A CN 116351567 A CN116351567 A CN 116351567A CN 202310283987 A CN202310283987 A CN 202310283987A CN 116351567 A CN116351567 A CN 116351567A
- Authority
- CN
- China
- Prior art keywords
- electrostatic dust
- electrostatic
- spray tower
- dust collection
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 177
- 239000007789 gas Substances 0.000 claims abstract description 77
- 239000007921 spray Substances 0.000 claims abstract description 70
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 239000012717 electrostatic precipitator Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000010865 sewage Substances 0.000 claims description 11
- 239000012719 wet electrostatic precipitator Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
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
- B03C3/02—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
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- 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
- B03C3/025—Combinations of electrostatic separators, e.g. in parallel or in series, stacked separators or dry-wet separator combinations
-
- 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
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
-
- 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
- B03C3/86—Electrode-carrying means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a wet electrostatic dust collection system which comprises a spray tower, an electrostatic dust collection mechanism and a demister, wherein the spray tower and the electrostatic dust collection mechanism are arranged in a split mode, an air inlet of the spray tower is connected with a cyclone separator through a flue gas pipeline, the electrostatic dust collection mechanism is arranged on one side of an air outlet of the spray tower, the air outlet of the spray tower is connected with a dry tail gas air inlet of the electrostatic dust collection mechanism, the demister is arranged on one side of a dry tail gas outlet of the electrostatic dust collection mechanism, and the dry tail gas outlet of the electrostatic dust collection mechanism is connected with the air inlet of the demister. The wet electrostatic dust collection system adopting the structure solves the problems that in the prior art, the tail gas treatment is not up to standard and the cost is high due to the integrated design of the electrostatic dust collector and the spray tower.
Description
Technical Field
The invention relates to the technical field of artificial board tail gas treatment, in particular to a wet electrostatic dust collection system.
Background
In the artificial board production industry, wood fibers or shavings can generate dust particles, formaldehyde, NOX and VOC during drying S The dry waste gas of phenols and the like needs to be purified according to the requirements of environmental management, and toxic and harmful substances and dust particles in the tail gas are purifiedThe national emission standard needs to be met: the particle is less than or equal to 10mg/m 3 Formaldehyde is less than or equal to 5mg/m 3 、NOX≤150mg/m 3 ,VOC S ≤60mg/m 3 . . The wet electrostatic dust collection treatment equipment is mainly used for tail gas treatment in many industries at present, and the principle is that high-voltage is utilized to generate static electricity so as to enable dust to be adsorbed on an anode, thereby achieving the purification effect.
The wet electrostatic dust collection equipment in the existing artificial board dry tail gas treatment technology is characterized in that a wet electrostatic dust collector and a spray tower are integrated, the lower part is provided with the spray tower for dust collection, and the upper part is provided with the wet electrostatic dust collector, so that the following problems exist: (1) Because spray column and electrostatic precipitator design as an organic whole, electrostatic precipitator requires airflow velocity little, usually below 2m/s, so electrostatic precipitator cross-sectional area is big, according to spraying density requirement, the spraying volume of demand like this is big, and power consumption is also big to lead to running cost high, and in order to reduce the spraying volume as far as possible, spray atomized water granule is little, is blown away by the air current easily, increases defroster load, also extravagant part sprays the water yield simultaneously. (2) Because electrostatic precipitator and spray column are integrated design and are located same tower, electrostatic precipitator's dust collecting electrode design is longer, is more than 6 meters at least, and tail gas adopts down to advance, goes up to go out moreover, sprays the washing and sprays from the top down, and for this often dust washing adhesion on the dust collecting pipe wall, even blocks up the pipeline, leads to its unable normal work, causes back corona phenomenon, makes power consumption increase by a time, and dust removal efficiency reduces by a wide margin, reduces more than 30% even. Meanwhile, in the tail gas dust removal process, air flow is reversely carried out to cause secondary dust emission, secondary pollution is caused, the dust removal efficiency is reduced, so that the finally discharged tail gas cannot reach the standard stably, the early stage of equipment can reach the standard, and the particulate matters are more than 20mg/m after the equipment is operated for a certain time, for example, 3 months or 6 months 3 Above, the new industry standard cannot be reached. (3) The system adhesion dust clearance difficulty, the cleaning is unclean, influences dust removal efficiency, causes the dust removal not up to standard, and power consumption is big. (4) Slag-water separation of circulating spray water of a spray tower is mainly filtered by a filter, the slag-water separation is not clean, SS is still more than 2000mg/L, and the circulating spray is causedSecondary pollution, secondary pollution of dust in the system sprayed water causes dust to adhere to the wall of the pipeline, even the pipeline is blocked, the dust removal efficiency is rapidly reduced, and the running electricity charge is doubled. Therefore, it is needed to provide a wet electrostatic dust collection system with good tail gas treatment effect and low cost.
Disclosure of Invention
The invention aims to provide a wet electrostatic dust collection system, which is characterized in that an electrostatic precipitator and a spray tower are designed in a split mode, and the electrostatic precipitator is designed in a two-area mode, so that the problems that tail gas treatment is not up to standard and operation cost is high due to the integrated design of the electrostatic precipitator and the spray tower in the prior art are solved.
In order to achieve the above purpose, the invention provides a wet electrostatic dust collection system, which comprises a spray tower, an electrostatic dust collection mechanism and a demister, wherein the spray tower and the electrostatic dust collection mechanism are arranged in a split mode, an air inlet of the spray tower is connected with a cyclone separator through a flue gas pipeline, the electrostatic dust collection mechanism is arranged at one side of an air outlet of the spray tower, the air outlet of the spray tower is connected with the air inlet of the electrostatic dust collection mechanism, the demister is arranged at one side of the air outlet of the electrostatic dust collection mechanism, and the air outlet of the electrostatic dust collection mechanism is connected with the air inlet of the demister;
the electrostatic dust removing mechanism comprises an electrostatic dust removing first area and an electrostatic dust removing second area, the electrostatic dust removing first area comprises a first diversion bin, a first electrostatic dust remover and a first ultrasonic generator, the first electrostatic dust remover is provided with a gas inlet upwards, the first diversion bin is arranged on the upper side of the first electrostatic dust remover, the upper side of the first diversion bin is provided with a dry tail gas inlet, and the first ultrasonic generator is arranged on one side of the gas inlet of the first electrostatic dust remover;
the second electrostatic dust collection area comprises a second diversion bin, a second electrostatic dust collector and a second ultrasonic generator, wherein the second electrostatic dust collector is provided with a gas outlet upwards, the gas outlet of the first electrostatic dust collector is connected with the gas inlet of the second electrostatic dust collector, the second diversion bin is arranged on the upper side of the second electrostatic dust collector, the upper side of the second diversion bin is provided with a dry tail gas outlet, and the second ultrasonic generator is arranged on one side of the gas outlet of the second electrostatic dust collector;
the lower sides of the first electrostatic precipitator and the second electrostatic precipitator are connected with the dust collecting bin.
Preferably, the bottom of the spray tower is provided with a fine filter, and the fine filter and the dust collecting bin are both connected with the sewage pool.
Preferably, the sewage pool is connected with the filter press through a water outlet pipeline, a sewage pump is arranged on the water outlet pipeline, a water outlet of the filter press is connected with a circulating water pool, and the circulating water pool is connected with a spraying device of the spraying tower through a circulating pump and a pipeline.
Preferably, the gas flow rate of the spray tower is 5-10-m/s.
Preferably, the length range of the dust collecting poles of the electrostatic dust removing first area and the electrostatic dust removing second area is 2.0-7 m.
Preferably, the fine filter screen has a mesh size of 4 to 100.
The invention has the beneficial effects that:
(1) The spray tower and the wet electrostatic dust removing mechanism are arranged in a split mode, the sectional areas of the two devices can be designed according to the requirements, the air flow speed of the spray tower can reach 5-10m/s, which is 2-3 times that of the prior art, the diameter of the split spray tower is reduced, the gas throughput in the area of a single body is large, so that the contact density of gas and spray water is improved, the dust treatment efficiency is improved, the spray water quantity is greatly reduced by more than 50% under the condition of the same spray density, the power consumption is greatly reduced, the power energy consumption is saved by more than 50%, and the operation cost is reduced.
(2) The electrostatic precipitator adopts the design of two district, and every district gathers dust utmost point length is 3 meters, conveniently clears away the dust to clear away more cleanly, dust collection efficiency is high, makes equipment basically keep unanimous with the dust collection efficiency when new use, has guaranteed the long-term steady up to standard operation of electrostatic precipitator.
(3) The electrostatic precipitator adopts the two district designs, can carry out subregion control according to the load condition of use, adjusts the electric quantity of use, reduces the power consumption by a wide margin, reduces the power consumption, practices thrift running cost.
(4) The first electrostatic dust removal area is a main dust removal area, the airflow and the falling direction of dust are consistent, the airflow and the falling direction of dust flow from top to bottom, secondary dust emission caused by different airflow directions and falling directions of dust is avoided, dust is favorably removed and enters the dust hopper, and collection and removal treatment is carried out. The electrostatic dust removal second area is an auxiliary dust removal area, fine particles in the tail gas are further cleaned, the treatment efficiency of the tail gas is improved, whether the electrostatic dust removal second area is started or not can be selected according to the content of particles in the flue gas tail gas, and the operation cost is saved.
(5) The electrostatic precipitator adopts the ultrasonic wave to carry out dust removal and deashing treatment, guarantees that the dust collecting polar plate deashing is cleaner, and the dust removal efficiency can keep long-term stability after the polar plate is clean, can not appear like other technologies and decay by a wide margin.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a wet electrostatic precipitator system according to the present invention;
FIG. 2 is a schematic diagram of an electrostatic precipitator mechanism of a wet electrostatic precipitator system according to the present invention;
fig. 3 is a schematic diagram of a dust removal flow of a wet electrostatic dust removal system according to the present invention.
Reference numerals:
1. a spray tower; 2. an electrostatic dust removing mechanism; 3. a demister; 4. electrostatic dust removal is carried out on a first area; 401. a diversion bin I; 402. an electrostatic dust collector I; 403. an ultrasonic generator I; 404. a dry tail gas inlet; 5. electrostatic dust removal two areas; 501. a second diversion bin; 502. an electrostatic dust collector II; 503. an ultrasonic generator II; 504. a dry tail gas outlet; 6. a dust collection bin; 7. a filter press; 8. a fine filter; 9. a circulating water tank; 10. a sewage pool; 11. a sewage pump.
Detailed Description
The present invention will be further described with reference to examples in which various chemicals and reagents are commercially available unless otherwise specified.
Examples
Referring to fig. 1 to 3, as shown in the drawings, the present invention provides a wet electrostatic dust collection system, which includes a spray tower 1, an electrostatic dust collection mechanism 2 and a mist eliminator 3, wherein the spray tower 1 and the electrostatic dust collection mechanism 2 are separately arranged, an air inlet of the spray tower 1 is connected with a cyclone separator through a flue gas pipeline, the electrostatic dust collection mechanism 2 is arranged at one side of an air outlet of the spray tower 1, the air outlet of the spray tower 1 is connected with a dry tail gas air inlet 404 of the electrostatic dust collection mechanism 2, and the cross sections of the two devices can be designed according to requirements. The spray tower 1 sprays atomized liquid drops, the atomized liquid drops are contacted with flue gas to carry out preliminary dust removal, the gas flow rate of the spray tower 1 is 5-10m/s, which is 2-3 times of the gas flow rate of the spray tower 1 in the prior art, and the diameter of the split spray tower 1 is reduced, so that the spray density is increased by 2-3 times under the condition of the same spray water quantity due to the reduction of the cross section area of the spray tower 1, the dust removal efficiency is obviously improved, the spray water quantity is greatly reduced by more than 50% under the condition of the same spray water quantity, the power consumption is greatly reduced, the power energy consumption is saved by more than 50%, and the operation cost is reduced.
The electrostatic dust removing mechanism 2 comprises an electrostatic dust removing first area 4 and an electrostatic dust removing second area 5, the length ranges of dust collecting poles of the electrostatic dust removing first area 4 and the electrostatic dust removing second area 5 are 2.0-7 m, the double-area design is adopted, the length of each area dust collecting pole can be designed to be shorter, the length of each area dust collecting pole is designed to be 3 m, the length of each area dust collecting pole is far smaller than that of a dust collecting pole with the length of 6 m in the prior art, dust is conveniently removed, the dust is removed more cleanly, the dust removing efficiency is high, the equipment basically can keep consistent with the dust removing efficiency in the new use, and the long-term stable standard operation of the electrostatic dust removing is ensured.
The first electrostatic dust collection area 4 comprises a first diversion bin 401, a first electrostatic dust collector 402 and a first ultrasonic generator 403, wherein the first electrostatic dust collector 402 is provided with a gas inlet upwards, so that tail gas flows downwards from top to bottom in the first electrostatic dust collector 402, the direction of air flow is consistent with the falling direction of dust, secondary dust emission caused by different air flow directions and falling directions of the dust is avoided, dust is removed, and the dust is favorably removed and enters a dust hopper for collection and removal treatment.
The first diversion bin 401 is arranged on the upper side of the first electrostatic precipitator 402, and a dry tail gas inlet 404 is arranged on the upper side of the first diversion bin 401. The first electrostatic dust removal area 4 is a main dust removal area, large-particle-size particles in the tail gas are removed, the flue gas generated by a chimney enters the first diversion bin 401 through the dry tail gas inlet 404 after being dried, and the dry tail gas is dispersed through the first diversion bin 401, so that the tail gas uniformly enters the first electrostatic dust remover 402, and dust removal treatment is facilitated.
The electrostatic dust removal second area 5 includes water conservancy diversion storehouse two 501, electrostatic precipitator two 502 and supersonic generator two 503, electrostatic precipitator two 502 is the gas outlet and upwards sets up, the gas outlet of electrostatic precipitator one 402 and the gas inlet connection of electrostatic precipitator two 502, in the tail gas after electrostatic precipitator one 402 handles enters into electrostatic precipitator two 502, carry out further dust removal processing, electrostatic precipitator second area 5 is supplementary dust removal area, mainly get rid of the remaining small-size particulate matter that electrostatic precipitator one 402 missed in the tail gas, improve the treatment effeciency of tail gas, and can select whether to open electrostatic dust removal second area 5 according to the content of particulate matter in the flue gas tail gas, practice thrift running cost.
The second diversion bin 501 is arranged on the upper side of the second electrostatic precipitator 502, a dry tail gas outlet 504 is formed in the upper side of the second diversion bin 501, clean tail gas processed by the first electrostatic precipitator 402 and the second electrostatic precipitator 502 enters the second diversion bin 501, the clean tail gas is discharged from the dry tail gas outlet 504 after being guided by the second diversion bin 501, the discharged tail gas is dispersed by the arrangement of the second diversion bin 501, and then the tail gas is uniformly discharged into a demister to be subjected to gas-liquid separation, so that the purpose of demisting is achieved, and finally clean gas reaches the standard and is discharged in the air. Ultrasonic generator one 403 sets up in the gas entrance one side of electrostatic precipitator one 402, and ultrasonic generator two 503 sets up in the gas exit one side of electrostatic precipitator two 502, adopts the ultrasonic wave to remove dust and the deashing to electrostatic precipitator one 402 and electrostatic precipitator two 502, and the deashing efficiency reaches 99%, and the deashing is cleaner, guarantees that dust collecting polar plate deashing is cleaner, and the long-term stable maintenance of the dust removal efficiency can not appear like other technologies and decay by a wide margin after the polar plate is clean. The downside of electrostatic precipitator one 402 and electrostatic precipitator two 502 all is connected with dust collection storehouse 6, makes it fall into in the dust collection storehouse 6 after electrostatic precipitator one 402 and electrostatic precipitator two 502 adsorb the particulate matter in the tail gas to be convenient for concentrate the collection processing with the dust.
The defroster 3 sets up in the gas outlet one side of electrostatic precipitator mechanism 2, and the gas outlet of electrostatic precipitator mechanism 2 is connected with the air inlet of defroster 3, and the tail gas after the dust removal treatment in first district 4 of electrostatic precipitator and second district 5 of electrostatic precipitator enters into after the defogger 3 defogging alright discharge up to standard.
The spray tower 1 is connected with the electrostatic dust removing mechanism 2 through a gas pipeline, a fine filter 8 is arranged at the bottom of the spray tower 1, the fine filter 8 and the dust collecting bin 6 are connected with a sewage pool 10, slag-water separation treatment is carried out, and the filtering mesh number of a filter screen of the fine filter 8 is 4-100. The sewage pool 10 is connected with the filter press 7 through a water outlet pipeline, a sewage pump 11 is arranged on the water outlet pipeline, a water outlet of the filter press 7 is connected with the circulating water pool 9, and the circulating water pool 9 is connected with a spraying device of the spray tower 1 through a circulating pump and a pipeline.
The fine filter filters dust from spray dust removal, the filtering efficiency reaches 80%, the remaining 20% is filtered by the filter press, the filtering efficiency reaches 90-95%, the waste water generated by tail gas treatment of the spray tower and the electrostatic precipitator is filtered cleanly, the water is convenient for recycling, the dust content in the circulating water is lower, the SS is less than or equal to 150mg/L, secondary pollution and system blockage generated during the circulating spray are avoided, and the tail gas treatment efficiency in the spray tower is improved.
Specific working principle:
the dry tail gas generated by the production of the artificial board enters a spray tower through a flue gas pipeline at an outlet of a cyclone separator, the gas flow rate of the spray tower is controlled to be 5-10m/s, atomized liquid drops are sprayed in the spray tower, the atomized liquid drops are contacted with waste gas to carry out preliminary dust removal, the tail gas treated by the spray tower enters an electrostatic dust removal mechanism, waste water generated in the spray tower enters a fine filter to carry out preliminary filtration, and then the waste water enters a filter press to carry out secondary filtration, so that the cleanliness of circulating water is improved, secondary pollution is avoided, and the treatment efficiency of the spray tower on the waste gas is improved. The tail gas treated by the spray tower enters a first electrostatic dust collection area through a dry tail gas inlet to remove large-particle-size particles, then enters a second electrostatic dust collection area to remove small-particle-size particles, the tail gas treated by the electrostatic dust collection can reach the standard and be discharged after demisting by a demister, and dust adsorbed in the first electrostatic dust collection area and the second electrostatic dust collection area enters a dust collection bin to be subjected to centralized treatment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (6)
1. The utility model provides a wet electrostatic precipitator system which characterized in that: the device comprises a spray tower, an electrostatic dust removing mechanism and a demister, wherein the spray tower and the electrostatic dust removing mechanism are arranged in a split mode, an air inlet of the spray tower is connected with a cyclone separator through a flue gas pipeline, the electrostatic dust removing mechanism is arranged on one side of an air outlet of the spray tower, the air outlet of the spray tower is connected with the air inlet of the electrostatic dust removing mechanism, the demister is arranged on one side of the air outlet of the electrostatic dust removing mechanism, and the air outlet of the electrostatic dust removing mechanism is connected with the air inlet of the demister;
the electrostatic dust removing mechanism comprises an electrostatic dust removing first area and an electrostatic dust removing second area, the electrostatic dust removing first area comprises a first diversion bin, a first electrostatic dust remover and a first ultrasonic generator, the first electrostatic dust remover is provided with a gas inlet upwards, the first diversion bin is arranged on the upper side of the first electrostatic dust remover, the upper side of the first diversion bin is provided with a dry tail gas inlet, and the first ultrasonic generator is arranged on one side of the gas inlet of the first electrostatic dust remover;
the second electrostatic dust collection area comprises a second diversion bin, a second electrostatic dust collector and a second ultrasonic generator, wherein the second electrostatic dust collector is provided with a gas outlet upwards, the gas outlet of the first electrostatic dust collector is connected with the gas inlet of the second electrostatic dust collector, the second diversion bin is arranged on the upper side of the second electrostatic dust collector, the upper side of the second diversion bin is provided with a dry tail gas outlet, and the second ultrasonic generator is arranged on one side of the gas outlet of the second electrostatic dust collector;
the lower sides of the first electrostatic precipitator and the second electrostatic precipitator are connected with the dust collecting bin.
2. A wet electrostatic precipitator system according to claim 1, wherein: the bottom of the spray tower is provided with a fine filter, and the fine filter and the dust collecting bin are connected with a sewage pool.
3. A wet electrostatic precipitator system according to claim 2, wherein: the sewage pool is connected with the filter press through a water outlet pipeline, a sewage pump is arranged on the water outlet pipeline, a water outlet of the filter press is connected with a circulating water pool, and the circulating water pool is connected with a spraying device of the spray tower through a circulating pump and a pipeline.
4. A wet electrostatic precipitator system according to claim 1, wherein: the gas flow rate of the spray tower is 5-10m/s.
5. A wet electrostatic precipitator system according to claim 1, wherein: the length range of the dust collecting poles of the first electrostatic dust collection area and the second electrostatic dust collection area is 2.0-7 meters.
6. A wet electrostatic precipitator system according to claim 3, wherein: the filtering mesh number of the fine filter screen is 4-100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310283987.1A CN116351567A (en) | 2023-03-22 | 2023-03-22 | Wet electrostatic dust collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310283987.1A CN116351567A (en) | 2023-03-22 | 2023-03-22 | Wet electrostatic dust collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116351567A true CN116351567A (en) | 2023-06-30 |
Family
ID=86941332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310283987.1A Pending CN116351567A (en) | 2023-03-22 | 2023-03-22 | Wet electrostatic dust collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116351567A (en) |
-
2023
- 2023-03-22 CN CN202310283987.1A patent/CN116351567A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200977444Y (en) | Water cleaning dust removing device | |
| CN207576661U (en) | A kind of wet electrical dust collector device | |
| CN103480223A (en) | Wet-type fume purification system and purification method for high smoke speed PM2.5 and pollutant | |
| CN110860169A (en) | Magnetic material drying kiln flue gas purification treatment device and treatment method | |
| CN112495113A (en) | High-efficient purifier who contains wet flue gas | |
| CN110898577A (en) | Dust removal method for dry tail gas in artificial board production | |
| CN205549935U (en) | Wet -type electric precipitation secondary absorption tower | |
| CN103949127A (en) | Flue embedded wet-type electric deduster and electrical dedusting method | |
| CN208852614U (en) | It is a kind of for separating the final dusting equipment of fine particle dust in tail gas | |
| CN111318122A (en) | High-temperature dust-containing waste gas emission purification method and device thereof | |
| CN107362648B (en) | Industrial air purification system | |
| CN116351567A (en) | Wet electrostatic dust collection system | |
| CN214680821U (en) | Efficient dust removal and purification device containing wet flue gas | |
| CN206229530U (en) | The Wet type electric dust-removing device of fast dust-removing | |
| CN103239965A (en) | Combined type air purifying device | |
| CN103341299A (en) | Self-cleaning wet type electrostatic precipitation demister capable of working continuously | |
| CN209577022U (en) | Wet type cyclone electrostatic precipitator | |
| CN207445858U (en) | Spiral-flow type air cleaning system | |
| CN205914283U (en) | Simple and easy wet -type electricity dust collector | |
| CN206045683U (en) | A kind of fast dust-removing device for automatically adjusting | |
| CN108722094A (en) | A kind of final dusting equipment for detaching fine particle dust in tail gas | |
| CN208911705U (en) | The centrifugal machine dedusting demister of electrification | |
| CN205926015U (en) | Automatic quick wet -type electrostatic precipitator who adjusts | |
| CN203678247U (en) | Multi-pollutant cooperative control device in non-ferrous smelting flue gas | |
| CN217340816U (en) | Dry tail gas processing system of wood-based plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |