CN113351370B - Composite electrostatic dust collection device for removing arsenic, selenium and lead in flue gas - Google Patents
Composite electrostatic dust collection device for removing arsenic, selenium and lead in flue gas Download PDFInfo
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- CN113351370B CN113351370B CN202110742927.2A CN202110742927A CN113351370B CN 113351370 B CN113351370 B CN 113351370B CN 202110742927 A CN202110742927 A CN 202110742927A CN 113351370 B CN113351370 B CN 113351370B
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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
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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
- B03C3/74—Cleaning the electrodes
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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Abstract
The invention discloses a composite electrostatic dust collection device for removing arsenic, selenium and lead in smoke, which comprises a device main body, a dust collection device and a dust collection device, wherein the device main body comprises a shell, an air inlet fan arranged on the shell and a discharge port arranged at the lower end of the shell; the spraying assembly comprises an electrode column arranged in the shell, an atomizing nozzle arranged in the shell and an ultrasonic oscillator arranged in the shell; and the filter assembly comprises an activated carbon filter screen, the smoke firstly passes through the first row of cathode tubes, so that particles in the smoke are electrified, the smoke is adsorbed on the anode tubes when passing through the second row of anode tubes, then the smoke continuously flows, the smoke is electrified through the third row of cathode tubes, then the smoke is enriched on the fourth row of anode tubes again, an ultrasonic vibrator is arranged in the middle of the electrostatic dust collection area and is used for shaking and dropping dust enriched on the anode tubes into a dust hopper below the dust hopper, and then an atomizing nozzle is arranged in the other shell.
Description
Technical Field
The invention relates to the technical field of flue gas electrostatic dust removal, in particular to a composite electrostatic dust removal device for removing arsenic, selenium and lead in flue gas.
Background
At present, china is the largest coal producing country in the world and is also the largest coal consuming country, and at present, coal occupies about 56% of the energy pattern of China, wherein thermal power generation is a large coal consuming household in China, a large amount of gases such As SOx and NOx are generated in the coal burning process, and some heavy metal pollutants are also generated and discharged into the atmospheric environment along with flue gas, wherein the heavy metal pollutants comprise arsenic, selenium, lead and the like, the emission concentration of Hg is limited to 0.03mg/m & lt 3 & gt in the national standard (GB 13223-2011), and the substitution emission indexes of pollutants for the existing coal burning unit in the United states are arsenic (As) 0.473mg/GJ, 9.072mg/MWh, selenium (Se) 2.15mg/GJ, 27.216mg/MWh, lead (Pb) 0.516mg/GJ and 9.072mg/MWh. Wherein mg/GJ is calculated based on the fuel input heat and mg/MWh is calculated based on the total power output. The heavy metal pollutants are concentrated on some fine particles and exist in the atmosphere for a long time, and once the heavy metal pollutants are discharged into the environment, the ecological environment and the safety of human beings are finally influenced along with the propagation of a biological chain.
The main dust removal equipment of the existing power plant in China is an electrostatic dust collector, and the equipment can capture particles generated in coal-fired flue gas, so that the pollution to the environment is greatly reduced, but the existing dust removal technology does not effectively capture heavy metals such as arsenic, selenium, lead and the like in the flue gas, and a complete scheme for removing the heavy metals is lacked.
The existing electrostatic dust collector is characterized in that a cathode wire and an anode plate are arranged inside a dust collector shell, a strong electric field is formed between the cathode wire and the anode plate, when industrial tail gas passes through the strong electric field, particles in the industrial tail gas can be charged due to coulomb force of a high-voltage electrostatic field, and the particles with high adhesiveness are adsorbed on the anode plate, so that the particles are collected, and then the particles in the tail gas are collected in a dust collector below the dust collector under the action of water flow flushing above the anode plate, so that the purpose of dust removal and purification of the industrial tail gas is achieved. However, because a large amount of heavy metal pollutants such as arsenic, selenium, lead and the like exist in the flue gas, the existing WESP equipment cannot effectively remove arsenic, selenium and lead from the flue gas, the flow is single, the classification treatment cannot be realized, the efficiency of removing the heavy metal in fine particles is low, and the heavy metal may harm human health along with a biological chain along with the emission of the flue gas, so that a major safety accident is caused.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the existing composite electrostatic dust removal device for removing arsenic, selenium and lead in the flue gas.
Therefore, the invention aims to provide a composite electrostatic dust removal device for removing arsenic, selenium and lead in flue gas.
In order to solve the technical problems, the invention provides the following technical scheme: a composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas comprises a device main body, a dust removal device and a dust removal device, wherein the device main body comprises a shell, an air inlet fan arranged on the shell and a discharge port arranged at the lower end of the shell; the spraying assembly comprises an electrode column arranged in the shell, an atomizing nozzle arranged in the shell and an ultrasonic oscillator arranged in the shell; and the filtering component comprises an activated carbon filtering net.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the casing is provided with two, two the casing includes the shell body, sets up storage chamber in the shell body, sets up at the upper floor of storage chamber upper wall department and sets up the lower plate in storage chamber lower wall department, the electrode column sets up between upper floor and lower plate, set up the intercommunicating pore with the bin outlet intercommunication on the lower plate, wherein, two be equipped with the connecting piece between the casing.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the ultrasonic oscillator comprises a fixed column arranged in the other shell, a plurality of dispersing plates arranged at the upper end of the fixed column and an ultrasonic transmitter arranged in the dispersing plates, wherein an inserting rod is arranged at the lower end of the fixed column, and a matching hole matched with the inserting rod is formed in the lower bottom plate.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the shell with the atomizing spray heads is internally provided with a first-stage adsorption area and a second-stage adsorption area, the first-stage adsorption area is arranged at one end close to the connecting piece, the second-stage adsorption area is arranged at one end close to the air inlet fan, the number of the atomizing spray heads in the first-stage adsorption area is twice that of the atomizing spray heads in the second-stage adsorption area, the atomizing spray heads in the first-stage adsorption area are provided with a hydrogen peroxide storage box, the atomizing spray heads in the second-stage adsorption area are provided with a sodium hypochlorite storage box,
wherein, be equipped with the universal piece between atomizer and the upper floor.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the universal piece comprises an extension bar arranged on the upper floor, an arc-shaped groove arranged at the front section of the extension bar and a rotating ball arranged in the arc-shaped groove, and the rotating ball is connected with the atomizing spray head.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the arc-shaped groove is internally provided with a stepping motor, the stepping motor is directly connected with a first connecting rod, the front end of the first connecting rod is provided with a bent rod, a second connecting rod is arranged between the bent rod and the rotating ball, and the bending angle between the bent rod and the first connecting rod is 25-35 degrees.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the connecting piece is including connecting two communicating pipe between the casing, rotate and connect the bull stick in the communicating pipe and set up at the bull stick upper end and the rotation section of thick bamboo of lower extreme, the rotation section of thick bamboo includes even board, the setting of the second of keeping away from first link board one end even board and set up the actuating lever even between board at first link board and second that link with the bull stick links to each other, form the drive space between the actuating lever, the rotation is connected with the plectane communicating pipe, be provided with a plurality ofly on the plectane and drive space complex arch.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: the rotary drum is internally provided with a micron-sized filter element, and a filter screen is arranged outside the micron-sized filter element.
As a preferred scheme of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas, the invention comprises the following steps: and an activated carbon net is arranged on each discharge port.
The invention has the beneficial effects that: the flue gas firstly passes through the first row of cathode tubes, so that particles in the flue gas are electrified, the flue gas is adsorbed on the anode tubes when passing through the anode tubes of the second row, then the flue gas continuously flows, the flue gas passes through the third row of cathode tubes and is electrified, then the flue gas is enriched on the anode tubes of the fourth row, an ultrasonic vibrator is arranged in the middle of the electrostatic dust collection area and is used for shaking and dropping dust enriched on the anode tubes into a dust hopper below, and then an atomizing nozzle is arranged in another shell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas according to the present invention.
Fig. 2 is a schematic structural diagram of the first adsorption zone and the second adsorption zone of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas.
Fig. 3 is an enlarged schematic view of a part A of the structure in fig. 2 of the composite electrostatic dust removal device for removing arsenic, selenium and lead in flue gas.
Fig. 4 is a schematic structural view of the universal member of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas of the present invention.
Fig. 5 is a schematic structural diagram of a connecting piece of the composite electrostatic dust removal device for removing arsenic, selenium and lead from flue gas.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1, the device for composite electrostatic precipitation for removing arsenic, selenium and lead from flue gas comprises a device main body 100, which comprises a shell 101, an air inlet fan 102 arranged on the shell 101 and a discharge port 103 arranged at the lower end of the shell 101; a spray assembly 200 comprising an electrode column 201 disposed within the housing 101, an atomizer 202 disposed within the housing 101, and an ultrasonic oscillator 203 disposed within the housing 101; and a filter assembly 500, the filter assembly 500 including an activated carbon filter net, and two housings 101.
Specifically, the main structure of the present invention includes a device main body 100, in this embodiment, the device main body 100 includes two housings 101, two housings 101 are provided, an air intake fan 102 is provided in the housing 101, the air intake fan 102 is provided at one end of the housing 101, and the lower end of the housing 101 is provided with a discharge outlet 103 for discharging waste materials, while an activated carbon adsorption net is provided at the end of the other housing 101, the inlet fan is installed at a flue gas inlet, and the present invention further includes a filter assembly 500, the filter assembly 500 includes an activated carbon filter net, and the activated carbon adsorption net is installed at a flue gas outlet.
Further, the present invention also includes a spraying assembly 200, in this embodiment, the spraying assembly 200 includes electrode columns 201 disposed in the casing 101, the electrode columns 201 are provided with 4 rows and 6 groups, and dust collecting areas are formed by staggering cathode tubes and anode tubes.
The operation process comprises the following steps: the flue gas firstly passes through the first row of cathode tubes, so that particles in the flue gas are electrified, the flue gas is adsorbed on the anode tubes when passing through the anode tubes of the second row, then the flue gas continuously flows, the flue gas passes through the third row of cathode tubes and is electrified, then the flue gas is enriched on the anode tubes of the fourth row, an ultrasonic vibrator is arranged in the middle of the electrostatic dust collection area and is used for shaking and dropping dust enriched on the anode tubes into a dust hopper below, and then an atomizing nozzle 202 is arranged in the other shell 101.
Example 2
Referring to fig. 1-4, this embodiment differs from the first embodiment in that: the casing 101 is provided in two, the two casings 101 including an outer casing 101a101, a storage chamber 101b opened in the outer casing 101a101, an upper floor 101c provided at an upper wall of the storage chamber 101b, and a lower floor 101d provided at a lower wall of the storage chamber 101b, the electrode column 201 is provided between the upper floor 101c and the lower floor 101d, the lower floor 101d is provided with a communication hole 104 communicating with the discharge port 103, wherein, a connecting piece 400 is arranged between the two shells 101, the ultrasonic oscillator 203 comprises a fixed column 203a arranged in the other shell 101, a plurality of dispersing plates 203b arranged at the upper ends of the fixed column 203a and an ultrasonic emitter 203c arranged in the dispersing plates 203b, the lower end of the fixed column 203a is provided with an inserted bar, a matching hole matched with the inserted bar is arranged on the lower bottom plate 101d, a first-stage adsorption area and a second-stage adsorption area are arranged in the shell 101 provided with the atomizing spray heads 202, the first-stage adsorption area is arranged at one end close to the connecting piece 400, the second-stage adsorption area is arranged at one end close to the air inlet fan 102, the number of the atomizing spray heads 202 in the first-stage adsorption area is twice that of the atomizing spray heads 202 in the second-stage adsorption area, the atomizing spray heads 202 in the first-stage adsorption area are provided with a hydrogen peroxide storage box, the atomizing spray heads 202 in the second-stage adsorption area are provided with a sodium hypochlorite storage box, the universal piece 300 is arranged between the atomizing nozzle 202 and the upper floor 101c, the universal piece 300 comprises an extension rod 301 arranged on the upper floor 101c, an arc groove 302 arranged at the front section of the extension rod 301, and a rotating ball 303 arranged in the arc groove 302, the rotating ball 303 is connected with the atomizing nozzle 202, a stepping motor 304 is arranged in the arc groove 302, a first connecting rod 305 is directly connected onto the stepping motor 304, a bent rod 306 is arranged at the front end of the first connecting rod 305, a second connecting rod 307 is arranged between the bent rod 306 and the rotating ball 303, and the bending angle between the bent rod 306 and the first connecting rod 305 is 25-35 degrees.
Specifically, in the present embodiment, the casing 101 includes an outer casing 101a101, a storage chamber 101b is further provided in the outer casing 101a101, an upper floor plate 101c is provided at an upper wall of the storage chamber 101b, a lower floor plate 101d is provided at a lower wall of the storage chamber 101b, the electrode column 201 is provided between the upper floor plate 101c and the lower floor plate 101d, and a communication hole 104 communicating with the discharge port 103 is provided in the lower floor plate 101 d.
Further, ultrasonic oscillator 203 is including setting up fixed column 203a in another casing 101, set up a plurality of boards 203b and the ultrasonic transmitter 203c of setting in board 203b of dispersing of fixed column 203a upper end, and then ultrasonic transmitter 203c in board 203b of dispersing can send the ultrasonic wave, can adsorb the flue gas vibrations on anode electrode post 201 with the first order and drop, then be provided with the inserted bar at fixed column 203a lower extreme, seted up on the lower plate 101d with inserted bar complex mating holes, and then can make things convenient for the operator to dismantle the change.
Further, be provided with one-level adsorption zone and second grade adsorption zone inside the casing 101 that is equipped with atomizer 202, the heavy metal in the flue gas is reacted by spun hydrogen peroxide solution in the injection subassembly 200 of top in the one-level adsorption zone, and the heavy metal oxide that is gaseous wherein oxidizes or will be fine particle state catches, and wherein the atomizer 202 that is connected with the universal joint makes flue gas and solution fully contact. Then the flue gas passes through the second grade adsorption zone, and the sodium hypochlorite solution sprayed by the spraying component 200 is used in the spraying zone to further oxidize and remove unoxidized particle state and low valence heavy metal in the flue gas, and the number of the atomizing spray heads 202 in the first grade adsorption zone is twice that of the atomizing spray heads 202 in the second grade adsorption zone.
It is worth to say that the spraying liquid used in the secondary spraying area is sodium hypochlorite, the sodium hypochlorite can be used for further removing the heavy metals in particle state, simple substance state and combination state in the flue gas, and the sodium hypochlorite solution is sprayed out by the universal spray head above the sodium hypochlorite solution. The particle-state heavy metals comprise particle-state Asp, sep and Pbp, the simple substance-state heavy metals comprise simple substance-state Se0 and Pb0, and the compound-state heavy metals comprise compound-state As3+, as5+, se4+, se6+ and Pb2+. The spray liquid is finally discharged through an ash bucket below.
Further, a universal member 300 is arranged on the atomizer 202, in this embodiment, the universal member 300 includes an extension rod 301 arranged on the upper floor 101c, an arc groove 302 is arranged at the front end of the extension rod 301, a rotating ball 303 is further arranged in the arc groove, the rotating ball 303 is connected with the atomizer 202, a stepping motor 304 is arranged in the arc groove 302, a first connecting rod 305 is directly connected to the stepping motor 304, a bent rod 306 is arranged at the front end of the first connecting rod 305, a second connecting rod 307 is arranged between the bent rod 306 and the rotating ball 303, and a bending angle between the bent rod 306 and the first connecting rod 305 is 25-35 degrees, so that the bent rod 306 can drive the rotating ball 303 to perform universal rotation.
The rest of the structure is the same as in example 1.
The operation process comprises the following steps: when the composite electrostatic dust removal device works, the flue gas firstly enters from the air inlet fan 1021, then enters into the electrostatic dust removal area, and after the flue gas passes through the two times of electrified cathode tubes in the electrostatic dust removal area, the flue gas passes through the two times of electrified anode tubes again, so that the charged particles in the flue gas are attached to the anode tubes, and then the ultrasonic vibrator in the middle of the electrostatic dust removal area works to shake off the dust enriched on the anode tubes, thereby collecting the dust in the dust hopper below. Then the flue gas passes through the middle filtering component 50012 to further remove fine particles in the flue gas. Then the flue gas enters a double-stage adsorption area, heavy metals in the flue gas in the first-stage adsorption area are firstly reacted by hydrogen peroxide solution sprayed from the spraying assembly 20011 above, gaseous heavy metal oxides in the flue gas are oxidized or the heavy metals in fine particle state are captured, and the flue gas is fully contacted with the solution through the atomizing nozzle 202 connected with the universal joint. Then the flue gas passes through the second grade adsorption zone, uses universal shower nozzle spun sodium hypochlorite solution to carry out further oxidation desorption to unoxidized particulate state and low valence's heavy metal in the flue gas in this spraying zone, and the flue gas that passes through the two-stage spraying can pass through the adsorbed layer that the one deck was laid by active carbon when passing through the exhanst gas outlet, realizes further desorption to the heavy metal in the flue gas.
Example 3
Referring to fig. 5, this embodiment differs from the above embodiment in that: the connecting member 400 includes a communication pipe 401 connected between the two housings 101, a rotation rod 402 rotatably connected in the communication pipe 401, and a rotation cylinder 403 disposed at the upper end and the lower end of the rotation rod 402, the rotation cylinder 403 includes a first connection plate 403a connected to the rotation rod 402, a second connection plate 403b disposed at one end far away from the first connection plate 403a, and a driving rod 403c disposed between the first connection plate 403a and the second connection plate 403b, a driving gap is formed between the driving rods 403c, a circular plate 404 is rotatably connected in the communication pipe 401, a plurality of protrusions 405 matched with the driving gap are disposed on the circular plate 404, a micron-sized filter cartridge 406 is disposed in the rotation cylinder 403, a filter screen is disposed outside the micron-sized filter cartridge 406, and an activated carbon mesh is disposed on each discharge port.
Specifically, in this embodiment, the connection member 400 includes a communication pipe 401 connecting the two housings 101, the communication pipe 401 is disposed along a horizontal direction, a rotation rod 402 is further disposed in the communication pipe 401, a rotation plane of the rotation rod 402 is disposed horizontally, meanwhile, rotation cylinders 403 are disposed at upper and lower ends of the rotation rod 402, each rotation cylinder 403 includes a first connection plate 403a connected to the rotation rod 402, a second connection plate 403b disposed at an end away from the first connection plate 403a, and a driving rod 403c disposed between the first connection plate 403a and the second connection plate 403b, a driving gap is formed between the driving rod 403c and the driving rod 403c, a circular plate 404 is rotatably connected to the communication pipe 401, a plurality of protrusions 405 matched with the driving gap are disposed on the circular plate 404, and the protrusions 405 are disposed only at one quarter of the circular plate 404, and when rotating, the rotation cylinder 403 can be rotated in advance, and then driven to rotate in a reverse direction, and then the micron-sized filter cartridge 406 in the rotation cylinder 403 is used to perform filtering.
The rest of the structure is the same as in example 2.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not have been described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (3)
1. The utility model provides a compound electrostatic precipitator's of arsenic, selenium, plumbous desorption device which characterized in that for in the flue gas: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the device comprises a device main body (100) and a control device, wherein the device main body comprises a shell (101), an air inlet fan (102) arranged on the shell (101) and a discharge outlet (103) arranged at the lower end of the shell (101);
the spraying assembly (200) comprises an electrode column (201) arranged in the shell (101), an atomizing spray head (202) arranged in the shell (101) and an ultrasonic oscillator (203) arranged in the shell (101); and the number of the first and second groups,
the filter assembly (500), the filter assembly (500) includes the active carbon filter screen, casing (101) are provided with two, two casing (101) include shell body (101 a) (101), set up storage chamber (101 b) in shell body (101 a) (101), set up upper floor (101 c) and lower plate (101 d) of setting in storage chamber (101 b) lower wall department in storage chamber (101 b) upper wall department, electrode column (201) set up between upper floor (101 c) and lower plate (101 d), set up on lower plate (101 d) intercommunicating pore (104) with bin outlet (103) intercommunication,
wherein a connecting piece (400) is arranged between the two shells (101), the ultrasonic oscillator (203) comprises a fixed column (203 a) arranged in the other shell (101), a plurality of diffusion plates (203 b) arranged at the upper ends of the fixed column (203 a) and an ultrasonic emitter (203 c) arranged in the diffusion plates (203 b), an inserted rod is arranged at the lower end of the fixed column (203 a), a matching hole matched with the inserted rod is formed in a lower bottom plate (101 d), a primary adsorption area and a secondary adsorption area are arranged in the shell (101) provided with the atomizing nozzles (202), the primary adsorption area is arranged at one end close to the connecting piece (400), the secondary adsorption area is arranged at one end close to the air inlet fan (102), the number of the atomizing nozzles (202) in the primary adsorption area is twice that of the atomizing nozzles (202) in the secondary adsorption area, a hydrogen peroxide storage tank is arranged on the atomizing nozzles (202) in the primary adsorption area, and a sodium hypochlorite storage tank is arranged on the atomizing nozzles (202) in the secondary adsorption area,
wherein, a universal piece (300) is arranged between the atomizing nozzle (202) and the upper floor (101 c), the universal piece (300) comprises an extension rod (301) arranged on the upper floor (101 c), an arc groove (302) arranged at the front section of the extension rod (301) and a rotating ball (303) arranged in the arc groove (302), the rotating ball (303) is connected with the atomizing nozzle (202), a stepping motor (304) is arranged in the arc groove (302), the stepping motor (304) is directly connected with a first connecting rod (305), the front end of the first connecting rod (305) is provided with a bent rod (306), a second connecting rod (307) is arranged between the bent rod (306) and the rotating ball (303), the bending angle between the bent rod (306) and the first connecting rod (305) is 25-35 degrees, the connecting piece (400) comprises a communicating pipe (401) connected between the two shells (101), a rotating rod (402) connected in the communicating pipe (401) in a rotating, a rotating barrel (403) arranged at the upper end of the rotating rod (402) and the lower end of the rotating barrel (403), a connecting plate (403) is connected with a first connecting plate (403 a), a connecting plate (403 b) arranged between the first connecting plate (403 a connecting plate (403 b), drive gaps are formed among the drive rods (403 c), a circular plate (404) is rotationally connected in the communicating pipe (401), and a plurality of protrusions (405) matched with the drive gaps are arranged on the circular plate (404).
2. The composite electrostatic precipitator for arsenic, selenium and lead removal in flue gas as claimed in claim 1, wherein: a micron-sized filtering filter element (406) is arranged in the rotating cylinder (403), and a filter screen is arranged outside the micron-sized filtering filter element (406).
3. The composite electrostatic precipitator for arsenic, selenium and lead removal in flue gas as claimed in claim 1, wherein: and an active carbon net is arranged on each discharge port.
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| CN202110742927.2A CN113351370B (en) | 2021-06-30 | 2021-06-30 | Composite electrostatic dust collection device for removing arsenic, selenium and lead in flue gas |
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| CN110449021A (en) * | 2019-08-13 | 2019-11-15 | 上海电力大学 | Twin-stage absorption cooperates with the WESP device of efficient removal heavy metal with twin-stage spray |
| CN110624409A (en) * | 2019-10-25 | 2019-12-31 | 福建龙净环保股份有限公司 | Smelt flue gas system acid equipment and gas cleaning device thereof |
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| CN107614113A (en) * | 2015-03-26 | 2018-01-19 | 住友金属矿山工程株式会社 | Electric dust collector heavy metals removal servicing unit |
| CN104740983A (en) * | 2015-03-31 | 2015-07-01 | 广东电网有限责任公司电力科学研究院 | Method and device for performing combined removal on boiler flue gas particulates and heavy metals |
| CN209174124U (en) * | 2018-09-25 | 2019-07-30 | 傅炳洲 | Air conditioning filter structure with long service life |
| CN109013058A (en) * | 2018-09-27 | 2018-12-18 | 上海电力学院 | A kind of high-efficient wet-type electrostatic precipitator catalysis oxidation joint removing heavy metal device |
| CN110449017A (en) * | 2019-08-13 | 2019-11-15 | 上海电力大学 | A kind of lye injection promotes the device of WESP removing arsenic selenium lead heavy metal |
| CN112122003B (en) * | 2020-09-15 | 2022-08-26 | 湖南汉坤实业有限公司 | Electrostatic dust collection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110449021A (en) * | 2019-08-13 | 2019-11-15 | 上海电力大学 | Twin-stage absorption cooperates with the WESP device of efficient removal heavy metal with twin-stage spray |
| CN110624409A (en) * | 2019-10-25 | 2019-12-31 | 福建龙净环保股份有限公司 | Smelt flue gas system acid equipment and gas cleaning device thereof |
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