CN111921349A - High-voltage electric field deodorization tower - Google Patents
High-voltage electric field deodorization tower Download PDFInfo
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- CN111921349A CN111921349A CN202010866935.3A CN202010866935A CN111921349A CN 111921349 A CN111921349 A CN 111921349A CN 202010866935 A CN202010866935 A CN 202010866935A CN 111921349 A CN111921349 A CN 111921349A
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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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
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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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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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
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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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
- B01D53/79—Injecting reactants
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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
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a high-voltage electric field deodorization tower, which relates to the technical field of flue gas treatment devices and comprises a tower body, wherein a flue gas inlet is formed in the side part of the tower body, an exhaust port is formed in the top part of the tower body, a liquid storage layer, an alkali liquor spraying layer, a water spraying layer, a demisting layer and a high-voltage electric field layer are sequentially arranged on the tower body from bottom to top, the flue gas inlet is positioned between the liquid storage layer and the alkali liquor spraying layer, the liquid storage layer is connected with an alkali liquor pool through a pipeline with a pump, the alkali liquor spraying layer comprises a first spraying device, and a liquid inlet of the first spraying. The invention solves the technical problem of poor flue gas deodorization effect in the prior art, can be completely suitable for flue gas with complex components, and has remarkable deodorization effect and high deodorization efficiency.
Description
Technical Field
The invention relates to the technical field of flue gas treatment devices, in particular to a high-voltage electric field deodorization tower.
Background
The gas of pungent smell is got rid of to the basis of flue gas deodorization technology, in order to reach the fixed emission standard of country, still need get rid of grease, saturated or unsaturated acid, particulate matter impurity and other toxic gas in the flue gas, and high voltage electric field tower or spray column all have the limitation at present in the commonly used mode, can not be suitable for the complicated composition of flue gas, lead to the deodorant effect poor, still have the problem that the deodorization is efficient low.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a high-voltage electric field deodorization tower and aims to solve the technical problem of poor flue gas deodorization effect in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a high-tension electric field deodorization tower, includes the tower body, and the lateral part of tower body is equipped with the flue gas import, and the top of tower body is equipped with the gas vent, and the tower body is equipped with the liquid storage layer from supreme down in proper order, alkali lye sprays the layer, the water sprays the layer, defogging layer and high-tension electric field layer, and the flue gas import is located liquid storage layer and alkali lye and sprays between the layer, and the liquid storage layer is through taking pump line connection alkali lye pond, and alkali lye sprays the layer and includes first spray set, and first spray set's inlet is.
Wherein, the bottom of the liquid storage layer is provided with an oxygen aeration device.
Wherein, an overflow pipe is connected between the top of the liquid storage layer and the top of the alkali liquor pool.
Wherein, first spray set is atomizing spray set, and atomizing spray set arranges along vertical direction and is provided with two, and two atomizing spray set's the direction of spraying all sets up down.
Wherein, the water spray layer comprises a second spray device, and a liquid inlet of the second spray device is connected with the circulating water tank through a pipeline with a pump.
The two second spraying devices are arranged in the vertical direction, and the spraying directions of the two second spraying devices are both arranged downwards.
Wherein, a clapboard is arranged between the water spraying layer and the alkali liquor spraying layer, a plurality of ventilation caps are arranged on the clapboard, and the tower body part corresponding to the clapboard is connected with the top of the circulating water tank through a return pipe.
Wherein, defogging layer includes the defroster, and the defroster is provided with two along vertical direction range.
Wherein, be equipped with the washing unit who just sets up the defroster in the tower body, washing unit passes through the water tank of taking pump connection.
The high-voltage electric field layer comprises an anode tube and a cathode wire which are electrically connected with the direct-current high-voltage electric system, the anode tube and the cathode wire are positioned on the upper part of the high-voltage electric field layer, the lower part of the high-voltage electric field layer is provided with a third spraying device which sprays upwards, and the third spraying device is connected with the flushing water tank through a pipeline with a pump.
After the technical scheme is adopted, the invention has the beneficial effects that:
because the high-voltage electric field deodorization tower comprises a tower body, the side part of the tower body is provided with a flue gas inlet, the top part of the tower body is provided with an exhaust port, the tower body is sequentially provided with a liquid storage layer, an alkali liquor spraying layer, a water spraying layer, a demisting layer and a high-voltage electric field layer from bottom to top, the flue gas inlet is positioned between the liquid storage layer and the alkali liquor spraying layer, the liquid storage layer is connected with an alkali liquor pool through a pipeline with a pump, the alkali liquor spraying layer comprises a first spraying device, a liquid inlet of the first spraying device is connected with the liquid storage layer through a pipeline with a pump, flue gas is firstly in gas-liquid countercurrent contact with the alkali liquor sprayed by the first spraying device to remove most pungent odor, partial foul gas and most trapped grease and saturated or unsaturated acid in the flue gas, the residual gas continuously rises to be in gas-liquid countercurrent contact with water sprayed by a second, the residual gas continuously flows upwards to pass through the demisting layer, so that most of flue gas carrying moisture and part of fine particles are captured, further emission reduction is carried out, finally the residual gas enters the high-voltage electric field layer to attach dust (fog) particles in the flue gas to the anode tube and the cathode wire, separation of the gas and the dust (fog) particles is realized, most of unsaturated hydrocarbons and long-chain biomass odorous substances can be removed through corona ionization of the high-voltage electric field, and therefore efficient deodorization of the flue gas is realized, and the deodorization effect is obvious.
Because the bottom of the liquid storage layer is provided with the oxygen aeration device, the oxygen aeration device greatly increases the oxygen content in the system and simultaneously carries out pneumatic stirring, thereby not only further oxidizing the sprayed unsaturated substances, but also preventing the organic matters from precipitating to cause pipeline blockage and reducing the efficiency.
Because first spray set is atomizing spray set, atomizing spray set arranges along vertical direction and is provided with two, and two atomizing spray set's the direction of spraying all sets up down. For further improving deodorization efficiency, first spray set is atomizing spray set, and atomizing spray set arranges along vertical direction and is provided with two, and two atomizing spray set's the direction that sprays all sets up down, sprays alkali lye in opposite directions through two spray set, and the droplet cocurrent flow who sprays two directions that form intersects, has improved the abundant degree of droplet in the layer that sprays to the combination degree of flue gas with the droplet has been improved, thereby has further improved the deodorant effect of flue gas.
In conclusion, the invention solves the technical problem of poor flue gas deodorization effect in the prior art, can be completely applied to the flue gas with complex components, and has remarkable deodorization effect and high deodorization efficiency.
Drawings
FIG. 1 is a schematic structural view of a high-voltage electric field deodorizing tower according to the present invention;
in the figure, a tower body 1, a flue gas inlet 10, an exhaust port 11, a liquid storage layer 2, an overflow pipe 20, an alkali liquid pool 21, an oxygen increasing aeration device 22, an alkali liquid spraying layer 3, a first spraying device 30, a water spraying layer 4, a second spraying device 40, a circulating water tank 41, a partition plate 5, a ventilation hood 50, a demisting layer 6, a demister 60, a washing device 61, a washing water tank 62, a high-voltage electric field layer 7, an anode pipe 70 and a third spraying device 71.
Detailed Description
The invention is further elucidated with reference to the drawing.
All the directions referred to in the specification are based on the directions of the high-voltage electric field deodorization tower in normal operation, the directions of the high-voltage electric field deodorization tower in storage and transportation are not limited, and only relative position relations are represented, and absolute position relations are not represented.
As shown in fig. 1, the deodorization tower comprises a tower body 1, the tower body 1 is vertically placed for use, a flue gas inlet 10 is arranged on the side portion of the tower body 1, an exhaust port 11 is arranged at the top of the tower body 1, a liquid storage layer 2, an alkali liquor spraying layer 3, a water spraying layer 4, a demisting layer 6 and a high-voltage electric field layer 7 are sequentially arranged on the tower body 1 from bottom to top, the flue gas inlet 10 is positioned between the liquid storage layer 2 and the alkali liquor spraying layer 3, the liquid storage layer 2 is connected with an alkali liquor pool 21 through a pipeline with a pump, the alkali liquor pool 21 supplements the liquid storage layer 2 with alkali liquor through a pump body and a pipeline, the alkali liquor spraying layer 3 comprises a first spraying device 30, a liquid inlet of the first spraying device is connected with the liquid storage layer 2 through a pipeline with a pump, and the alkali; the water spraying layer 4 comprises a second spraying device 40, a liquid inlet of the second spraying device 40 is connected with a circulating water tank 41 through a pipeline with a pump, and water in the circulating water tank 41 is conveyed to the second spraying device 40 through the pipeline with the pump to realize the spraying of the water; after entering the tower body 1, the flue gas is firstly in gas-liquid countercurrent contact with alkali liquor sprayed by the first spraying device 30, most of pungent smell, partial malodorous gas and most of grease and saturated or unsaturated acid intercepted in the flue gas are removed in the process, the residual gas continuously rises to be in gas-liquid countercurrent contact with water sprayed by the second spraying device 40, the process washes the intercepted partial alkali and unreacted ester acid, the residual gas continuously flows upwards to pass through the demisting layer 6, the demisting layer 6 comprises two demisting layers 60, the two demisting layers 60 are arranged along the vertical direction, most of flue gas carrying moisture and partial fine particles are captured by the demisting layer 60 to perform further emission reduction, and finally the residual gas enters the high-voltage electric field layer 7. In the present embodiment, the first spraying device 30 and the second spraying device 40 are both arranged in a downward spraying manner; among the other modes, for further improvement deodorization efficiency, first spray set 30 is atomizing spray set, atomizing spray set arranges along vertical direction and is provided with two, two atomizing spray set's the direction that sprays all sets up down, spray alkali lye through two spray set syntropy, spray the droplet syntropy flow of two directions of formation and intersect, improved the abundant degree of droplet in the layer that sprays, thereby improved the combination degree of flue gas with the droplet, thereby further improved the deodorant effect of flue gas.
Tens of thousands of volts of direct current high voltage is applied between the anode tube 70 and the cathode line of the high voltage electric field layer 7, under the action of a strong electric field, a corona layer is generated around the corona line, the air in the corona layer is subjected to avalanche ionization, thereby generating a large amount of negative ions and a small amount of positive ions, dust (fog) particles flowing into the high-voltage electric field collide with the positive and negative particles to be charged, the charged dust (fog) particles respectively move towards the cathode and the anode under the action of the coulomb force of the high-voltage electric field and reach the two electrodes, the charges are released, the dust (fog) particles are collected by the cathode and the anode and are separated from the gas by gravity flowing downwards, part of the dust (fog) particles are attached to the anode tube 70 and the cathode wire due to the inherent viscosity, and most of unsaturated hydrocarbons and long-chain biomass odorous substances can be removed by corona ionization of the high-voltage electric field.
Under the combined action of the alkali liquor spraying layer 3, the water spraying layer 4, the demisting layer 6 and the high-voltage electric field layer 7, the high-efficiency deodorization of the flue gas is realized, so that the device can be suitable for the high-efficiency treatment of the large-flow flue gas.
In the embodiment, the high-voltage electric field layer 7 comprises an anode tube 70 and cathode lines electrically connected to the direct-current high-voltage electric system, the anode tube 70 adopts a vertical tube structure, the anode tube and the cathode lines are positioned at the upper part of the high-voltage electric field layer 7, the lower part of the high-voltage electric field layer 7 is provided with a third spray device 71 which sprays upwards, the third spray device 71 is connected with the flushing water tank 62 through a pipeline with a pump, the flue gas and the fog drops move in the same direction to realize full combination, and under the action of the direct-current high-voltage electric field, dust particles, dust fog mixtures and the like in the flue gas are fully charged by the electric; the third spraying device 71 is also used for washing impurities adsorbed on the anode tube 70; and the equipment operates in a wet environment, and a high-voltage action interval is an open loop and has short circuit and open circuit protection.
The bottom of the liquid storage layer 2 is provided with an oxygen aeration device 22, the oxygen aeration device 22 greatly increases the oxygen content in the system and simultaneously carries out pneumatic stirring, thereby not only further oxidizing the sprayed unsaturated substances, but also preventing the organic matters from precipitating to cause pipeline blockage and reducing the efficiency. The oxygen-increasing aeration device 22 is preferably a nano ozone generator, and the generated ozone can enter the alkali liquor spraying layer 3 to realize the further removal of part of unsaturated organic matters, cyanide and other toxic inorganic matters, thereby further improving the effect of flue gas deodorization.
An overflow pipe 20 is connected between the top of the liquid storage layer 2 and the top of the alkaline liquid pool 21, and the overflow pipe 20 is used for controlling the liquid storage amount of the liquid storage layer 2, so that the liquid stored in the liquid storage layer 2 can continuously flow back to the alkaline liquid pool 21 to perform the regeneration process of the alkaline liquid, and the cyclic utilization of the alkaline liquid is realized.
A partition plate 5 is arranged between the water spray layer 4 and the alkali liquor spray layer 3, a plurality of ventilation caps 50 are arranged on the partition plate 5, the part of the tower body 1 corresponding to the partition plate 5 is connected to the top of the circulating water tank 41 through a return pipe, the partition plate 5 completely separates and circulates the water spray layer 4 and the alkali liquor spray layer 3, and the circulating independence of each layer is kept.
A washing device 61 which is right opposite to the demister 60 is arranged in the tower body 1, a nozzle assembly is preferably selected by the washing device 61, the nozzle assembly is connected with a flushing water tank 62 through a pipeline with a pump, and the demister 60 is washed by water in the flushing water tank 62.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (10)
1. A high-voltage electric field deodorization tower comprises a tower body, wherein a flue gas inlet is arranged at the side part of the tower body, an exhaust port is arranged at the top part of the tower body,
the tower body sprays layer, water spray layer, defogging layer and high-tension electric field layer from supreme stock solution layer, alkali lye of being equipped with in proper order down, the flue gas import is located the stock solution layer with alkali lye sprays between the layer, the stock solution layer is through taking pump piping connection alkali liquid pool, alkali lye sprays the layer and includes first spray set, first spray set's inlet is through taking pump piping connection the stock solution layer.
2. The high-voltage electric field deodorizing tower according to claim 1, wherein an oxygen-increasing aeration device is installed at the bottom of said liquid storage layer.
3. The high-voltage electric field deodorizing tower according to claim 1, wherein an overflow pipe is connected between the top of said liquid storage layer and the top of said alkaline liquid pool.
4. The high-voltage electric field deodorizing tower according to claim 1, wherein said first spraying means is two atomizing spraying means arranged in a vertical direction, and the spraying directions of both of said two atomizing spraying means are downward.
5. The high-voltage electric field deodorizing tower according to claim 1, wherein said water spraying layer comprises a second spraying means, and a liquid inlet of said second spraying means is connected to the circulating water tank through a pipe with a pump.
6. The high-voltage electric field deodorizing tower according to claim 5, wherein two of said second spraying means are arranged in a vertical direction, and the spraying directions of both of said second spraying means are directed downward.
7. The high-voltage electric field deodorizing tower according to claim 6, wherein a partition is provided between said water spraying layer and said alkali liquor spraying layer, said partition is provided with a plurality of ventilation caps, and the portion of said tower body corresponding to said partition is connected to the top of said circulating water tank through a return pipe.
8. The high-voltage electric field deodorizing tower according to claim 1, wherein said demisting layer comprises two demisters arranged in a vertical direction.
9. The high voltage electric field deodorizing tower according to claim 8, wherein said tower body is provided with a flushing device disposed opposite to said demister, said flushing device being connected to a flushing tank through a pipe having a pump.
10. The high voltage electric field deodorizing tower according to claim 9, wherein said high voltage electric field layer comprises an anode tube and a cathode line electrically connected to a dc high voltage electric system, said anode tube and said cathode line are located at an upper portion of said high voltage electric field layer, said third spraying means for spraying water upward is provided at a lower portion of said high voltage electric field layer, and said third spraying means is connected to said flush water tank through a pipe with a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010866935.3A CN111921349A (en) | 2020-08-26 | 2020-08-26 | High-voltage electric field deodorization tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010866935.3A CN111921349A (en) | 2020-08-26 | 2020-08-26 | High-voltage electric field deodorization tower |
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| CN111921349A true CN111921349A (en) | 2020-11-13 |
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| CN202010866935.3A Pending CN111921349A (en) | 2020-08-26 | 2020-08-26 | High-voltage electric field deodorization tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345098A (en) * | 2022-01-10 | 2022-04-15 | 浙江大学嘉兴研究院 | CO (carbon monoxide)2Method and system for trapping absorbent decomposition inhibition and efficient pollution reduction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345098A (en) * | 2022-01-10 | 2022-04-15 | 浙江大学嘉兴研究院 | CO (carbon monoxide)2Method and system for trapping absorbent decomposition inhibition and efficient pollution reduction |
| CN114345098B (en) * | 2022-01-10 | 2023-10-20 | 浙江大学嘉兴研究院 | CO (carbon monoxide) 2 Method and system for trapping absorbent decomposition inhibition and high-efficiency pollution reduction |
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