CN108393195B - Wet process desorption PM2.5 device - Google Patents
Wet process desorption PM2.5 device Download PDFInfo
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- CN108393195B CN108393195B CN201810118874.5A CN201810118874A CN108393195B CN 108393195 B CN108393195 B CN 108393195B CN 201810118874 A CN201810118874 A CN 201810118874A CN 108393195 B CN108393195 B CN 108393195B
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- dust collecting
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- 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
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- 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
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- 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
- B03C3/41—Ionising-electrodes
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Abstract
The invention relates to the technical field of energy conservation and environmental protection, in particular to a wet method PM2.5 removing device, which comprises a shell, a plurality of central corona electrodes, a left dust collecting polar plate, a right dust collecting polar plate and a liquid nozzle. The device for removing PM2.5 by a wet method adopts the vertical conical electric dust collector, and the dust collecting pole plate unit, the left dust collecting pole plate and the right dust collecting pole plate form a circuitous and tortuous flow passage, so that the particle collision probability is effectively improved, the residence time of fine particle pollutants is increased, the fine particle pollutants are more easily adsorbed on the dust collecting pole plates, the cleaning water film of the anode plate is uniformly covered, the phenomenon of 'channeling' is avoided, the dust removal effect is further improved, and secondary dust is more effectively prevented; the volume of the electric dust collector is reduced, and the economical efficiency of the device is improved.
Description
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a device for removing PM2.5 by a wet method.
Background
A great deal of SO exists in the waste gas generated in the industries of petroleum, chemical industry, steel, electric power, building materials and the likeX、NOXInhalable particles (PM10), particularly fine particles (PM2.5), and the like seriously affect human life and production. Along with the gradual worsening of haze, the atmospheric pollution treatment is not slow, and especially, the removal of fine particles in waste gas is an important task for emission reduction of enterprises. The number concentration of fine particles in the soot, particularly those below PM10, can reach 99% of the total number concentration, while most current precipitators are not efficient for fine particle removal, and therefore, attention must be paid to the treatment of fine particle pollutants.
Traditional dust removing devices such as a cyclone dust remover, an inertial dust remover and the like have good effect of removing large-particle dust, but have poor effect of treating fine particles; the electrostatic dust collector, the bag type dust collector and the wet dust collector have good treatment effect on fine dust, but the cloth bag of the bag type dust collector needs to be periodically replaced, the cost is high, the bag type dust collector is not suitable for airflow with high humidity, the wet dust collector is easy to block, corrode and the like, and the electrostatic dust collector becomes industrial flue gas treatment equipment which is widely applied at present.
At present, the electrostatic precipitator is easy to remove particulate matters, and only particulate pollutants with large particle sizes in waste gas can be removed, and the device for removing PM2.5 by a wet method is provided at the present situation that the treatment effect of fine particulate pollutants and gas pollutants is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the technical problem of general dust removal effect of industrial waste gas in the prior art, the invention provides the device for removing PM2.5 by the wet method, and the dust collection pole plate unit, the left dust collection pole plate and the right dust collection pole plate form circuitous and tortuous flow passages, so that the particle collision probability is effectively improved, the retention time of fine particles is prolonged, the fine particles can be more easily adsorbed on the dust collection pole plate, the cleaning water film of the anode plate is uniformly covered, the phenomenon of 'channeling' is avoided, the dust removal effect is further improved, and secondary dust raising is more effectively prevented.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device for removing PM2.5 by a wet method is a vertical conical electric dust collector and comprises a shell, a plurality of central corona poles, a left dust collecting polar plate, a right dust collecting polar plate and a liquid nozzle, wherein the central corona poles are vertically and horizontally arranged in the shell, a row of central corona poles is arranged from the front to the back, the central corona poles are arranged in multiple rows side by side, a left dust collecting polar plate and a right dust collecting polar plate are a dust collecting polar plate unit, the dust collecting polar plate units are arranged in multiple rows, the dust collecting polar plate units in two rows which are adjacent up and down are staggered mutually, namely, the left dust collecting polar plate and the right dust collecting polar plate of the dust collecting polar plate units in odd rows are respectively arranged at two sides of the central corona poles in odd rows, the left dust collecting polar plate and the right dust collecting polar plate of the dust collecting polar plate units in even rows are respectively arranged at two sides of the central corona poles in even rows, and circuitous and tortuous flow, the left side polar plate of gathering dust is by left riser and left swash plate, the vertical setting of left riser, the upper end of left swash plate and the bottom fixed connection of left riser, the angle between left swash plate and the left riser is greater than 90, the right side polar plate of gathering dust is by right riser and right swash plate, the vertical setting of right riser, the upper end of right swash plate and the bottom fixed connection of right riser, angle between right swash plate and the right riser is greater than 90, the bottom of left swash plate and the bottom of right swash plate draw close each other but contactless, both ends are dismantled with the inside front and back inner wall of casing respectively around the left side polar plate of gathering dust and are connected, both ends are dismantled with the inside front and back inner wall of casing respectively around the right.
According to the invention, the wet PM2.5 removal device is designed into a vertical conical electric dust remover, the bottom of the vertical conical electric dust remover is provided with a waste gas inlet, the top of the vertical conical electric dust remover is provided with a waste gas outlet, industrial waste gas carrying fine particulate matters can flow in a roundabout way among runners after entering the dust remover, so that the air flow in the dust remover forms double vortex, the particle collision probability is effectively improved, the retention time of the fine particulate matters is increased, fine particulate pollutants can be more easily adsorbed on a dust collecting polar plate, the dust removal effect is further improved, and secondary dust raising is more effectively prevented; the volume of the electric dust collector is reduced, and the economical efficiency is better.
In order to enable the discharge to be uniform, uniform barbed wires are arranged on the peripheries of the first corona electrode and the central corona electrode, and the tail ends of the barbed wires are flat ends. The tail end of the existing prickle wire is a tip, the charging of particles is influenced by the uneven discharging, and the dust removal effect is poor.
In order to improve the dust removal effect of the wet PM2.5 removal device, a support is further arranged at the top in the shell, and a plurality of liquid nozzles are mounted on the support. The liquid nozzle not only can play the effect of washing the polar plate that gathers dust, moreover because the setting of left swash plate and right swash plate, can slow down the liquid velocity of flow on left polar plate and the right polar plate that gathers dust to avoid the liquid film maldistribution, make more particulate matters get into the liquid film in, further improvement dust removal effect.
The device for removing PM2.5 by the wet method has the beneficial effects that the vertical conical electric dust collector is adopted, the dust collecting pole plate unit, the left dust collecting pole plate and the right dust collecting pole plate form a circuitous and tortuous flow passage, the particle collision probability is effectively improved, the residence time of fine particle pollutants is prolonged, the fine particle pollutants are more easily adsorbed on the dust collecting pole plates, the cleaning water film of the anode plate is uniformly covered, the phenomenon of 'channeling' is avoided, the nozzles arranged at the top part and the gap spraying are adopted, the secondary dust can be effectively prevented, and the removal efficiency of the fine particle matters is further improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a front view of a wet PM2.5 removal apparatus according to the present invention.
Fig. 2 is a left side view of the wet PM2.5 removal apparatus of the present invention.
Fig. 3 is a schematic structural diagram of a central corona electrode of the wet PM2.5 removal device of the present invention.
In the figure: 1. the device comprises a shell, 2 parts of a central corona electrode, 2-1 parts of a barbed wire, 3 parts of a left dust collecting polar plate, 3-1 parts of a left vertical plate, 3-2 parts of a left inclined plate, 4 parts of a right dust collecting polar plate, 4-1 parts of a right vertical plate, 4-2 parts of a right inclined plate, 5 parts of a flow channel, 6 parts of a liquid nozzle, 7 parts of a support.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-3, which is a preferred embodiment of the present invention, a device for removing PM2.5 by a wet method includes a housing 1, a plurality of central corona electrodes 2, a left dust collecting electrode 3, and a right dust collecting electrode 4, where the central corona electrodes 2 are vertically arranged in the housing 1, the central corona electrodes 2 are arranged in a vertically and horizontally aligned manner, and are set to be in a row from front to back, the central corona electrodes 2 are arranged in multiple rows side by side, one left dust collecting electrode plate 3 and one right dust collecting electrode plate 4 are a dust collecting electrode plate unit, the dust collecting electrode plate units are arranged in multiple rows, and the dust collecting electrode plate units in two adjacent rows above and below are staggered with each other, that is, the left dust collecting electrode plates 3 and the right dust collecting electrode plates 4 of the dust collecting electrode plate units in odd rows are respectively arranged on two sides of the central corona electrodes 2 in odd rows, the left dust collecting electrode plates 3 and the right electrode plates 4 of the dust collecting electrode, a circuitous flow channel 5 is formed among the dust collecting pole plate unit, the left dust collecting pole plate 3 and the right dust collecting pole plate 4;
the left dust collecting polar plate 3 is composed of a left vertical plate 3-1 and a left inclined plate 3-2, the left vertical plate 3-1 is vertically arranged, the upper end of the left inclined plate 3-2 is fixedly connected with the bottom of the left vertical plate 3-1, the angle between the left inclined plate 3-2 and the left vertical plate 3-1 is larger than 90 degrees, the right dust collecting polar plate 4 is composed of a right vertical plate 4-1 and a right inclined plate 4-2, the right vertical plate 4-1 is vertically arranged, the upper end of the right inclined plate 4-2 is fixedly connected with the bottom of the right vertical plate 4-1, the angle between the right inclined plate 4-2 and the right vertical plate 4-1 is larger than 90 degrees, the bottom of the left inclined plate 3-2 and the bottom of the right inclined plate 4-2 are close to each other but do not contact, the front and rear ends of the left dust collecting polar plate 3 are detachably connected with the front and rear inner walls inside. The detachable connection structure can be specifically that clamping grooves are formed in the front inner wall and the rear inner wall inside the shell 1, and the front end and the rear end of the left dust collecting polar plate 3 and the front end and the rear end of the right dust collecting polar plate 4 are buckled in the clamping grooves, so that the dust collecting polar plates can be conveniently detached and cleaned regularly. The central corona electrodes 2 are all negative electrodes.
The periphery of the central corona electrode 2 is provided with uniform barbed wires 2-1, and the tail ends of the barbed wires 2-1 are flat ends. The top in the shell 1 is also provided with a bracket 7, a plurality of liquid nozzles 6 are arranged on the bracket 7, and the spraying direction is downward.
The device for removing PM2.5 by a wet method is a vertical conical electric dust collector, a left dust collecting polar plate 3 and a right dust collecting polar plate 4 are arranged in pairs and then are approximately conical, the left dust collecting polar plate 3 and the right dust collecting polar plate 4 of a first row of dust collecting polar plate units are respectively arranged at two sides of odd-numbered central corona poles 2, the left dust collecting polar plate 3 and the right dust collecting polar plate 4 of a second row of dust collecting polar plate units are respectively arranged at two sides of even-numbered central corona poles 2, the left dust collecting polar plate 3 and the right dust collecting polar plate 4 of a third row of dust collecting polar plate units are respectively arranged at two sides … … of odd-numbered central corona poles 2, and the like, a tortuous flow passage 5 is formed by mixing the dust collecting polar plate units and the left dust collecting polar plate 3 and the right dust collecting polar plate 4, waste gas carrying fine particle pollutants flows among the flow passages 5, a double vortex is formed, the collision probability of particles, meanwhile, the retention time of the air flow is increased, so that particulate pollutants can be more easily adsorbed on the dust collecting pole plate, fine particulate matters collected on the dust collecting pole plate can be quickly cleaned by cleaning water, the dust removal effect is further improved, and secondary dust can be more effectively prevented; the volume of the electric dust collector is reduced, and the economical efficiency is better. The liquid nozzle 6 not only can play a role in cleaning the dust collecting polar plate, but also can slow down the flow velocity of liquid on the left dust collecting polar plate 3 and the right dust collecting polar plate 4 due to the arrangement of the left inclined plate 3-2 and the right inclined plate 4-2, so that uneven distribution of a liquid film is avoided, more particles enter the liquid film, and the dust removing effect is further improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A wet process desorption PM2.5 device which characterized in that: comprises a shell (1), a plurality of central corona electrodes (2), a left dust collecting polar plate (3) and a right dust collecting polar plate (4);
a support is arranged at the top in the shell (1), and a plurality of liquid nozzles (6) are mounted on the support;
the periphery of the central corona electrode (2) is provided with uniform barbed wires (2-1), and the tail ends of the barbed wires (2-1) are flat ends;
the central corona electrodes (2) are vertically arranged in the shell (1), the central corona electrodes (2) are arranged in a longitudinal and transverse alignment mode and are arranged in a row from front to back, a plurality of central corona electrodes (2) are arranged in a plurality of rows side by side, a left dust collecting polar plate (3) and a right dust collecting polar plate (4) are a dust collecting polar plate unit which is arranged in a plurality of rows, and the dust collecting polar plate units in two adjacent rows are staggered with each other, namely, the left dust collecting polar plates (3) and the right dust collecting polar plates (4) of the dust collecting polar plate units in odd rows are respectively arranged on two sides of the central corona poles (2) in odd rows, the left dust collecting polar plates (3) and the right dust collecting polar plates (4) of the dust collecting polar plate units in even rows are respectively arranged on two sides of the central corona poles (2) in even rows, and tortuous runners (5) are formed among the dust collecting polar plate units, the left dust collecting polar plates (3) and the right dust collecting polar plates (4);
the left dust collecting polar plate (3) is composed of a left vertical plate (3-1) and a left sloping plate (3-2), the left vertical plate (3-1) is vertically arranged, the upper end of the left sloping plate (3-2) is fixedly connected with the bottom of the left vertical plate (3-1), the angle between the left sloping plate (3-2) and the left vertical plate (3-1) is larger than 90 degrees, the right dust collecting polar plate (4) is composed of a right vertical plate (4-1) and a right inclined plate (4-2), the right vertical plate (4-1) is vertically arranged, the upper end of the right inclined plate (4-2) is fixedly connected with the bottom of the right vertical plate (4-1), an angle between the right inclined plate (4-2) and the right vertical plate (4-1) is larger than 90 degrees, and the bottom of the left inclined plate (3-2) and the bottom of the right inclined plate (4-2) are mutually close to each other but are not in contact with each other.
2. The wet PM2.5 removal apparatus of claim 1, wherein: the front end and the rear end of the left dust collecting polar plate (3) are respectively detachably connected with the front inner wall and the rear inner wall inside the shell, and the front end and the rear end of the right dust collecting polar plate (4) are respectively detachably connected with the front inner wall and the rear inner wall inside the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118874.5A CN108393195B (en) | 2018-02-06 | 2018-02-06 | Wet process desorption PM2.5 device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118874.5A CN108393195B (en) | 2018-02-06 | 2018-02-06 | Wet process desorption PM2.5 device |
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| Publication Number | Publication Date |
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| CN108393195A CN108393195A (en) | 2018-08-14 |
| CN108393195B true CN108393195B (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810118874.5A Active CN108393195B (en) | 2018-02-06 | 2018-02-06 | Wet process desorption PM2.5 device |
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| CN (1) | CN108393195B (en) |
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| CN108393195A (en) | 2018-08-14 |
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Effective date of registration: 20230519 Address after: Room 2229, Building B, Changzhou Science and Education City Science and Education Hall, No. 18-3 Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province, 213164 Patentee after: Jiangsu Qingxin Energy Technology Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |