CN113144834A - Low-temperature plasma desulfurization and denitrification treatment device for waste gas purification - Google Patents
Low-temperature plasma desulfurization and denitrification treatment device for waste gas purification Download PDFInfo
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- CN113144834A CN113144834A CN202110524438.XA CN202110524438A CN113144834A CN 113144834 A CN113144834 A CN 113144834A CN 202110524438 A CN202110524438 A CN 202110524438A CN 113144834 A CN113144834 A CN 113144834A
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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
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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
- B01D53/1456—Removing acid 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
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
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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
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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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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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
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The invention discloses a low-temperature plasma desulfurization and denitrification treatment device for waste gas purification, which comprises a shell, wherein a liquid storage chamber, an ionization chamber and a water absorption chamber are sequentially arranged in the shell from top to bottom, a denitration absorbent solution is filled in the liquid storage chamber, an adjusting chamber is arranged in the shell, the adjusting chamber is positioned at the right side of the water absorption chamber, and a plasma generator is arranged in the ionization chamber; the intracavity that absorbs water is equipped with the mechanism that absorbs water, the mechanism that absorbs water is including setting up the columnar activated carbon in the intracavity that absorbs water, the level runs through in the columnar activated carbon is equipped with the dwang, dwang and columnar activated carbon fixed connection, the both ends of dwang are rotated with the both sides inner wall in the chamber that absorbs water and are connected, the chamber that absorbs water is cylindricly, and cooperatees with columnar activated carbon. The device is at the in-process that uses, can let the timely discovery active carbon of staff whether absorb water efficiency has reduced, and can make the even consumption of active carbon, and life increases, can be with the abundant use of adsorbent simultaneously.
Description
Technical Field
The invention relates to the field of waste gas purification, in particular to a low-temperature plasma desulfurization and denitrification treatment device for waste gas purification.
Background
With production activities and living activities of human beings and the random construction of some factories, toxic and harmful substances SO2 and NOx discharged into the environment are increasing day by day, and bring immeasurable harm to the human beings;
to this problem, now a lot of SOx/NOx control devices appear on the market, make contributions for purifying the environment, general treatment mode is all earlier with the waste gas dewatering, then carry out the desulfurization through plasma generator, and with behind the nitride oxidation into nitrogen dioxide, collect, but in actual use, we find, the active carbon that is generally used for the dewatering, the water absorption efficiency can become low after using a period of time, the staff can't in time discover, can lead to subsequent exhaust-gas treatment effect to worsen, active carbon generally is fixed setting simultaneously, unable even consumption, there is the condition that life reduces, and nitrogen dioxide that the nitride formed directly pours into in the adsorbent, can appear local adsorption surplus, the less condition of local adsorption, the unable make full use of adsorbent.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a low-temperature plasma desulfurization and denitrification treatment device for waste gas purification.
In order to achieve the purpose, the invention adopts the following technical scheme:
a low-temperature plasma desulfurization and denitrification treatment device for waste gas purification comprises a shell, wherein a liquid storage chamber, an ionization chamber and a water suction chamber are sequentially arranged in the shell from top to bottom, a denitration absorbent solution is filled in the liquid storage chamber, an adjusting chamber is arranged in the shell, the adjusting chamber is positioned on the right side of the water suction chamber, and a plasma generator is arranged in the ionization chamber; the water absorption cavity is internally provided with a water absorption mechanism, the water absorption mechanism comprises columnar activated carbon arranged in the water absorption cavity, a rotating rod horizontally penetrates through the columnar activated carbon, the rotating rod is fixedly connected with the columnar activated carbon, two ends of the rotating rod are rotatably connected with the inner walls of two sides of the water absorption cavity, and the water absorption cavity is cylindrical and matched with the columnar activated carbon; the ionization chamber and the liquid storage chamber are internally and jointly provided with a power generation mechanism, the power generation mechanism comprises a rotating pipe vertically arranged in the ionization chamber, a one-way valve is arranged in the rotating pipe, the upper end of the rotating pipe extends into the liquid storage chamber and is fixedly communicated with a plurality of L-shaped pipes, a micro-generator is arranged at the inner top of the ionization chamber, and the input end of the micro-generator is in transmission connection with the rotating pipe through a transmission structure; a warning mechanism is arranged on one side of the shell and used for reminding workers of replacing the columnar activated carbon; and an adjusting mechanism for adjusting the columnar activated carbon is arranged in the adjusting cavity.
Preferably, the water suction cavity is communicated with the ionization cavity through a connecting port, the bottom space of the water suction cavity is communicated with the outside through an air inlet pipe, and the top space of the liquid storage chamber is communicated with the outside through an air outlet pipe.
Preferably, the warning mechanism comprises an alarm lamp arranged on the right side of the shell, and a humidity-sensitive resistor is arranged on the inner wall of the right side of the connecting port.
Preferably, the adjusting mechanism comprises a sliding plate which is slidably connected in the adjusting cavity, the upper end of the sliding plate is elastically connected with the inner top of the adjusting cavity through a conductive spring, the right end of the rotating rod extends into the adjusting cavity and is fixedly connected with a gear, and the lower end of the sliding plate is fixedly connected with a rack which is meshed with the gear.
Preferably, the micro-generator and the conductive spring form a closed loop, the micro-generator, the humidity sensitive resistor and the alarm lamp form a closed loop, and the two closed loops are arranged in parallel.
Preferably, a shaking screen plate is horizontally arranged in the liquid storage chamber, the lower end of the shaking screen plate is elastically connected with the inner bottom of the liquid storage chamber through two shaking springs, a second magnetic plate is fixedly connected to the lower end of the shaking screen plate, and a first magnetic plate matched with the second magnetic plate is fixedly connected to the upper end of each L-shaped pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the waste gas that contains nitrogen dioxide can enter into L type pipe through the rotating tube, and discharge, can give a reaction force that corresponds L type pipe from the terminal combustion gas of L type pipe, this reaction force can make whole rotating tube carry L type pipe and carry out clockwise rotation, a plurality of L type pipes are the rotation state with waste gas discharge in the stock solution room, with the even combination of denitration absorbent solution, the rotation of L type pipe can also stir solution simultaneously, make to combine more evenly, the solution utilization ratio has been increased to a certain extent.
2. Be provided with power generation mechanism, and then make the continuous reciprocating of sliding plate, through the cooperation of gear and rack, reciprocating of sliding plate can drive the continuous rotation that rotates of columnar activated carbon, can be so that the even and waste gas contact of columnar activated carbon, guarantee its even consumption, life improves.
3. After the water absorption of columnar activated carbon becomes poor, the waste gas through the columnar activated carbon is more moist at this moment, and the resistance value of the humidity sensitive resistor is very big at this moment, and the warning light is in bright state, reminds the staff timely change the columnar activated carbon at this moment, avoids influencing subsequent exhaust-gas treatment effect.
4. Through the setting of first magnetic sheet, second magnetic sheet and shake spring, along with the rotation of a plurality of L type pipes, the shake otter board can be continuous to shake, stirs solution, further improvement nitrogen dioxide and the binding rate of solution.
Drawings
FIG. 1 is a schematic structural diagram of a low-temperature plasma desulfurization and denitrification treatment device for purifying waste gas according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a top view of the connection of the rotating pipe and the L-shaped pipe;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: the device comprises a shell 1, a liquid storage chamber 2, an ionization chamber 3, a water suction chamber 4, a connecting port 5, an air inlet pipe 6, columnar activated carbon 7, a plasma generator 8, a rotating pipe 9, a transmission structure 10, a micro-generator 11, an alarm lamp 12, an adjusting chamber 13, a gear 14, a rack 15, a sliding plate 16, a conductive spring 17, a humidity-sensitive resistor 18, a shaking screen plate 19, a second magnetic plate 20, a first magnetic plate 21, a shaking spring 22, an L-shaped pipe 23 and an air outlet pipe 24.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
Referring to fig. 1-3, a low-temperature plasma desulfurization and denitrification treatment device for waste gas purification comprises a shell 1, a liquid storage chamber 2, an ionization chamber 3 and a water absorption chamber 4 are sequentially arranged in the shell 1 from top to bottom, a denitrification absorbent solution is filled in the liquid storage chamber 2, an adjustment chamber 13 is arranged in the shell 1 and is positioned on the right side of the water absorption chamber 4, a plasma generator 8 is arranged in the ionization chamber 3, the plasma generator 8 can generate a large amount of low-temperature plasma, the low-temperature plasma is combined with dry waste gas, the low-temperature plasma oxidizes nitric oxide in the waste gas to form nitrogen dioxide, sulfur dioxide can be eliminated, the water absorption chamber 4 is communicated with the ionization chamber 3 through a connecting port 5, the bottom space of the water absorption chamber 4 is communicated with the outside through an air inlet pipe 6, and the top space of the liquid storage chamber 2 is communicated with the outside through an air outlet pipe 24;
a water absorption mechanism is arranged in the water absorption cavity 4, the water absorption mechanism comprises columnar activated carbon 7 arranged in the water absorption cavity 4, a rotating rod horizontally penetrates through the columnar activated carbon 7, the rotating rod is fixedly connected with the columnar activated carbon 7, two ends of the rotating rod are rotatably connected with the inner walls of two sides of the water absorption cavity 4, and the water absorption cavity 4 is cylindrical and matched with the columnar activated carbon 7;
the ionization chamber 3 and the liquid storage chamber 2 are internally and jointly provided with a power generation mechanism, the power generation mechanism comprises a rotating pipe 9 vertically arranged in the ionization chamber 3, a one-way valve is arranged in the rotating pipe 9, the backflow of a solution can be effectively avoided, the upper end of the rotating pipe 9 extends into the liquid storage chamber 2 and is fixedly communicated with a plurality of L-shaped pipes 23, the inner top of the ionization chamber 3 is provided with a micro-generator 11 which is a micro-alternating current generator and can generate sine-wave alternating current, the input end of the micro-generator 11 is in transmission connection with the rotating pipe 9 through a transmission structure 10, the transmission structure 10 can be two transmission wheels, the two transmission wheels are respectively sleeved on the input shafts of the rotating pipe 9 and the micro-generator 11, and the two transmission wheels are in transmission connection through a transmission belt;
the warning mechanism is installed on one side of the shell 1 and used for reminding workers of replacing the columnar activated carbon 7 and comprises a warning lamp 12 installed on the right side of the shell 1, a humidity-sensitive resistor 18 is installed on the inner wall of the right side of the connecting port 5, the resistance value of the humidity-sensitive resistor 18 is reduced along with the increase of humidity, in the initial state, at the moment, waste gas passing through the columnar activated carbon 7 is dry, the resistance value of the humidity-sensitive resistor 18 is extremely large, the warning lamp 12 is in a non-bright state, after the water absorption of the columnar activated carbon 7 is poor, the waste gas passing through the columnar activated carbon 7 is wet, the resistance value of the humidity-sensitive resistor 18 is extremely large, the warning lamp 12 is in a bright state, at the moment, the workers are reminded of timely replacing the columnar activated carbon 7, and the subsequent waste gas treatment effect is prevented from being influenced;
adjust the intracavity and be equipped with the adjustment mechanism who is used for adjusting columnar activated carbon 7, adjustment mechanism includes sliding connection sliding plate 16 in adjusting intracavity 13, sliding plate 16's upper end and the interior top of adjusting intracavity 13 pass through conductive spring 17 elastic connection, the right-hand member of dwang extends to and adjusts intracavity 13 and fixedly connected with gear 14, sliding plate 16's lower extreme fixedly connected with and gear 14 meshed rack 15, sliding plate 16 is continuous reciprocates, cooperation through gear 14 and rack 15, reciprocating of sliding plate 16 can drive the continuous rotation of columnar activated carbon 7, can be so that the even and waste gas contact of columnar activated carbon 7, guarantee its even consumption, service life improves.
In one embodiment of the present invention, the micro-generator 11 and the conductive spring 17 form a closed loop, the micro-generator 11, the humidity sensitive resistor 18 and the alarm lamp 12 form a closed loop, and the two closed loops are connected in parallel.
In the using process, firstly, introducing waste gas through the gas inlet pipe 6, filtering and dewatering the introduced waste gas through the columnar activated carbon 7, then, introducing the dried waste gas into the ionization chamber 3, starting the plasma generator 8 in the ionization chamber 3 at the moment, wherein the plasma generator 8 can generate a large amount of low-temperature plasmas, the low-temperature plasmas are combined with the dried waste gas, and the low-temperature plasmas oxidize nitric oxide in the waste gas to form nitrogen dioxide and can eliminate sulfur dioxide;
at the moment, waste gas containing nitrogen dioxide enters the L-shaped pipe 23 through the rotating pipe 9 and is discharged, gas discharged from the tail end of the L-shaped pipe 23 can provide a reaction force corresponding to the L-shaped pipe 23, the reaction force can enable the whole rotating pipe 9 to carry the L-shaped pipe 23 to rotate clockwise, the plurality of L-shaped pipes 23 are in a rotating state and discharge the waste gas into the liquid storage chamber 2 and are uniformly combined with the denitration absorbent solution, meanwhile, the rotation of the L-shaped pipes 23 can also stir the solution, so that the combination is more uniform, and the solution utilization rate is increased to a certain extent;
the rotation of the rotating tube 9 drives the input shaft of the micro-generator 11 to rotate through the transmission structure 10, the micro-generator 11 generates sine alternating current, and because the magnitude and the direction of the generated alternating current are changed, therefore, the current and the magnitude of the conductive spring 17 are changed, after the conductive spring 17 is electrified, a reverse magnetic field is formed between every two adjacent spring coils, thereby causing the conductive spring 17 to contract, and because the current passing through the conductive spring 17 changes, the contraction degree of the conductive spring 17 is constantly changed, thereby causing the sliding plate 16 to continuously move up and down, through the matching of the gear 14 and the rack 15, the up-and-down movement of the sliding plate 16 drives the columnar activated carbon 7 to rotate continuously, the columnar activated carbon 7 can uniformly contact with the waste gas, the uniform consumption of the columnar activated carbon is ensured, and the service life is prolonged;
at the initial state, the waste gas passing through the columnar activated carbon 7 is dry, the resistance value of the humidity sensitive resistor 18 is extremely large, the alarm lamp 12 is in a non-bright state, after the water absorption of the columnar activated carbon 7 is poor, the waste gas passing through the columnar activated carbon 7 is wet, the resistance value of the humidity sensitive resistor 18 is extremely large, the alarm lamp 12 is in a bright state, and the worker is reminded of replacing the columnar activated carbon 7 in time, so that the subsequent waste gas treatment effect is prevented from being influenced.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that a shaking screen plate 19 is horizontally disposed in the liquid storage chamber 2, a lower end of the shaking screen plate 19 is elastically connected to an inner bottom of the liquid storage chamber 2 through two shaking springs 22, a second magnetic plate 20 is fixedly connected to a lower end of the shaking screen plate 19, and a first magnetic plate 21 matched with the second magnetic plate 20 is fixedly connected to an upper end of each L-shaped pipe 23.
In this embodiment, when the plurality of L-shaped tubes 23 rotate, the plurality of first magnetic plates 21 intermittently sweep under the second magnetic plate 20, and when the first magnetic plates 21 approach the second magnetic plate 20, the shaking screen 19 moves upward under the repulsive force, and when the first magnetic plates 21 are far away from the second magnetic plate 20, the shaking screen 19 moves back under the action of its own gravity and the elastic action of the shaking springs 22, that is, the shaking screen 19 continuously shakes along with the rotation of the plurality of L-shaped tubes 23 to stir the solution, thereby further improving the binding rate of nitrogen dioxide and the solution.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A low-temperature plasma desulfurization and denitrification treatment device for waste gas purification comprises a shell (1), and is characterized in that a liquid storage chamber (2), an ionization chamber (3) and a water absorption chamber (4) are sequentially arranged in the shell (1) from top to bottom, a denitrification absorbent solution is filled in the liquid storage chamber (2), an adjusting chamber (13) is arranged in the shell (1), the adjusting chamber (13) is positioned on the right side of the water absorption chamber (4), and a plasma generator (8) is arranged in the ionization chamber (3);
a water absorption mechanism is arranged in the water absorption cavity (4), the water absorption mechanism comprises columnar activated carbon (7) arranged in the water absorption cavity (4), a rotating rod horizontally penetrates through the columnar activated carbon (7), the rotating rod is fixedly connected with the columnar activated carbon (7), two ends of the rotating rod are rotatably connected with the inner walls of two sides of the water absorption cavity (4), and the water absorption cavity (4) is cylindrical and matched with the columnar activated carbon (7);
the ionization chamber (3) and the liquid storage chamber (2) are internally and jointly provided with a power generation mechanism, the power generation mechanism comprises a rotating pipe (9) vertically arranged in the ionization chamber (3), a one-way valve is arranged in the rotating pipe (9), the upper end of the rotating pipe (9) extends into the liquid storage chamber (2) and is fixedly communicated with a plurality of L-shaped pipes (23), the inner top of the ionization chamber (3) is provided with a micro-generator (11), and the input end of the micro-generator (11) is in transmission connection with the rotating pipe (9) through a transmission structure (10);
a warning mechanism is arranged on one side of the shell (1) and used for reminding workers to replace the columnar activated carbon (7);
and an adjusting mechanism for adjusting the columnar activated carbon (7) is arranged in the adjusting cavity (13).
2. The low-temperature plasma desulfurization and denitrification treatment device for waste gas purification according to claim 1, wherein the water suction chamber (4) is communicated with the ionization chamber (3) through a connection port (5), the bottom space of the water suction chamber (4) is communicated with the outside through an air inlet pipe (6), and the top space of the liquid storage chamber (2) is communicated with the outside through an air outlet pipe (24).
3. The low-temperature plasma desulfurization and denitrification processing device for exhaust gas purification according to claim 2, wherein the warning means comprises a warning lamp (12) mounted on the right side of the housing (1), and a humidity-sensitive resistor (18) is mounted on the right inner wall of the connection port (5).
4. The low-temperature plasma desulfurization and denitrification device for purification of exhaust gas according to claim 3, wherein the adjusting mechanism comprises a sliding plate (16) slidably connected in the adjusting chamber (13), the upper end of the sliding plate (16) is elastically connected with the inner top of the adjusting chamber (13) through a conductive spring (17), the right end of the rotating rod extends into the adjusting chamber (13) and is fixedly connected with a gear (14), and the lower end of the sliding plate (16) is fixedly connected with a rack (15) meshed with the gear (14).
5. The low-temperature plasma desulfurization and denitrification processing device for exhaust gas purification according to claim 4, wherein the micro-generator (11) and the conductive spring (17) form a closed loop, the micro-generator (11), the humidity sensitive resistor (18) and the alarm lamp (12) form a closed loop, and the two closed loops are arranged in parallel.
6. The low-temperature plasma desulfurization and denitrification device for waste gas purification according to claim 1, wherein a shaking screen plate (19) is horizontally arranged in the liquid storage chamber (2), the lower end of the shaking screen plate (19) is elastically connected with the inner bottom of the liquid storage chamber (2) through two shaking springs (22), the lower end of the shaking screen plate (19) is fixedly connected with a second magnetic plate (20), and the upper end of each L-shaped pipe (23) is fixedly connected with a first magnetic plate (21) matched with the second magnetic plate (20).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114797366A (en) * | 2022-06-14 | 2022-07-29 | 常州市第二人民医院 | Air treatment device with automatic air filtering and purifying function for internal circulation clinical laboratory |
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