CN111068490A - Ozone oxidation flue gas denitration device and method - Google Patents

Ozone oxidation flue gas denitration device and method Download PDF

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Publication number
CN111068490A
CN111068490A CN201911301135.0A CN201911301135A CN111068490A CN 111068490 A CN111068490 A CN 111068490A CN 201911301135 A CN201911301135 A CN 201911301135A CN 111068490 A CN111068490 A CN 111068490A
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box body
flue gas
pipe
gas
box
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苏丹
金海隆
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Nanjing Halls Biological Technology Co Ltd
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Nanjing Halls Biological Technology Co Ltd
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Priority to CN201911301135.0A priority Critical patent/CN111068490A/en
Publication of CN111068490A publication Critical patent/CN111068490A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76Gas phase processes, e.g. by using aerosols
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/10Oxidants
    • B01D2251/104Ozone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/40Nitrogen compounds
    • B01D2257/404Nitrogen oxides other than dinitrogen oxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a flue gas denitration device and a flue gas denitration method by an ozone oxidation method, which comprise a box body and a base arranged below the box body, wherein two sides of the upper end of the base are fixedly connected with the box body through support columns, an ammonia water solution is filled in the box body, a liquid discharge pipe is arranged on the lower left side of the box body, an exhaust pipe is arranged on the upper left side of the box body, a liquid discharge valve is arranged on the liquid discharge pipe, and a driving motor is arranged at the middle position of the top of the box body. Impurity in the ammonia water is removed through setting up the edulcoration subassembly, avoids the accumulational problem of impurity.

Description

Ozone oxidation flue gas denitration device and method
Technical Field
The invention relates to the technical field of waste gas treatment equipment, in particular to a flue gas denitration device and method by using an ozone oxidation method.
Background
Currently, the commonly used flue gas denitration methods are a Selective Catalytic Reduction (SCR) method and a non-selective catalytic reduction (SNCR) method. The SCR method has high denitration efficiency, but the initial investment is large, ammonia escape is easy to generate, the environment is polluted, part of SO2 is oxidized to form SO3 under the action of a catalyst in an SCR reactor, and the SO3 reacts with ammonia gas which does not participate in the denitration reaction to generate ammonium bisulfate, SO that the catalyst and an air preheater are damaged. The SNCR denitration technology uses a hearth as a reactor, has simple system and low investment and operation and maintenance cost, but has lower denitration efficiency and can not meet the requirement of ultralow emission. Traditional wet denitration adopts alkali lye to absorb NOx, generates a large amount of sodium nitrate and sodium nitrite, causes secondary pollution easily, and denitration efficiency is lower.
In order to solve the problems, the prior patent publication No. CN208482234U discloses a denitration device, nitrogen oxides in flue gas are removed by adopting methods of ozone oxidation and ammonia water absorption, the denitration efficiency is over 85 percent, compared with other desulfurization and denitration devices, ozone is arranged in an inlet flue to be sprayed, the flow area of the flue gas is small at the moment, the contact is sufficient, the oxidation efficiency is ensured, a process water system is increased, the trapping efficiency of NO2 is ensured, and the follow-up reaction is facilitated.
However, the technical scheme described in the prior patent is only to simply mix ozone and flue gas, nitrogen monoxide in the flue gas is difficult to be completely oxidized, and in addition, the device can cause accumulation of internal solid impurities during actual operation, thereby causing the problem that the device cannot work in the later period.
Disclosure of Invention
The invention aims to provide a flue gas denitration device and a flue gas denitration method by an ozone oxidation method, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a flue gas denitration device and a flue gas denitration method by an ozone oxidation method comprise a box body and a base arranged below the box body, wherein two sides of the upper end of the base are fixedly connected with the box body through support columns, ammonia water solution is filled in the box body, a liquid discharge pipe is arranged on the lower left side of the box body, an exhaust pipe is arranged on the upper left side of the box body, a liquid discharge valve is arranged on the liquid discharge pipe, a driving motor is arranged at the middle position of the top of the box body, an output end of the driving motor is provided with a stirring pipe, the lower end of the stirring pipe is extended out of the bottom of the box body and extends into a cache box arranged at the bottom of the box body, the box body and the stirring pipe are rotatably connected through a sealing bearing, an air inlet port on the left side of the cache box is connected with an ozone generator through a guide pipe, two air inlets of the cache box are symmetrically arranged;
a rotating cylinder which is coaxial with the stirring pipe is arranged in the box body, the upper end of the rotating cylinder is fixedly connected with the stirring pipe, in order to improve the mechanical property, a reinforcing rib is arranged between the rotating cylinder and the stirring pipe, exhaust ports are arranged on two sides of the upper end of the stirring pipe, and a plurality of mixing rods for mixing gas are arranged on the surface of the stirring pipe below the exhaust ports;
be equipped with supplementary material mixing piece on the stirring pipe of port place under the rotatory section of thick bamboo, supplementary material mixing piece includes the rectangle piece and sets up the feedstock channel on the rectangle piece, feedstock channel sets up the upstream face at the rectangle piece, the rectangle piece up end is equipped with discharging channel, discharging channel and feedstock channel intercommunication, the discharging channel up end is equipped with the perforated plate, feedstock channel is the big little toper passageway of interior port of outer port.
As a further scheme of the invention: still be equipped with reinforced part on the box, reinforced part is including setting up the liquid reserve tank on box right side, the liquid reserve tank passes through the inlet port of unloading union coupling box, be equipped with the unloading valve that is used for controlling the material downstream on the liquid reserve tank.
As a further scheme of the invention: and a mixing blade is arranged on the stirring pipe in the buffer box.
As a further scheme of the invention: the inner wall of the rotary cylinder is provided with a liquid level sensor for detecting the liquid level height, so that only part of the feeding channel is arranged below the liquid level.
As a further scheme of the invention: and the stirring pipe is provided with a one-way valve for controlling the one-way flow of gas.
As a further scheme of the invention: the improved rotary cylinder is characterized in that a piston component used for adjusting gas in the rotary cylinder is arranged in the box body, the piston component comprises a piston ring which is arranged on the outer side of the rotary cylinder in a sliding mode, an elastic sealing inner ring which is in sliding sealing with the inner wall of the rotary cylinder is arranged in a piston ring inner hole in a sliding fit mode, an elastic sealing outer ring which is in sliding fit with the inner wall of the box body is arranged on the outer side of the piston ring, a connecting rod is arranged at the upper end of the piston ring, the upper end of the connecting rod is connected with the output end of a telescopic hydraulic.
As a further scheme of the invention: stirring blades are symmetrically arranged on two sides of the lower end of the rotating cylinder.
As a further scheme of the invention: still be equipped with the edulcoration subassembly that is used for getting rid of the inside impurity of aqueous ammonia on the box, the edulcoration subassembly sets up two intercommunication mouths at the bottom half including the intercommunication, through circulation outer tube intercommunication between two intercommunication mouths, be equipped with on the circulation outer tube and be used for carrying out filterable purifying box to impurity, be equipped with the filter screen in the purifying box, still be equipped with the circulating pump that is used for promoting the material constantly to get into the purifying box on the circulation outer tube.
A treatment method of a flue gas denitration device by an ozone oxidation method comprises the steps of injecting ammonia water into a box body, then sending oxygen generated by an ozone generator and flue gas in a flue gas channel into a buffer box through a booster pump, thereby completing preliminary mixing of ozone and the flue gas, so as to carry out oxidation treatment on nitric oxide, then enabling mixed gas to rise along a stirring pipe and be discharged from an exhaust port, enabling a mixing rod to carry out mixing treatment on the gas along with the downward flow of the mixed gas, enabling liquid to enter along a feeding channel and be discharged from a discharging channel when the stirring pipe rotates, thereby generating an upward water column to collide with the downward-flowing gas, enabling the liquid to be fully mixed with the gas, and being beneficial to improving the purification effect of the gas, wherein a liquid level sensor used for detecting the liquid level height is arranged on the inner wall of a rotary cylinder so as to enable the feeding channel to be only partially arranged below the liquid level, the piston ring is driven to move downwards through the telescopic hydraulic lever, so that liquid is forced to be extruded into the rotary cylinder, the concentration of gas in the rotary cylinder is improved, and the chemical reaction speed is improved.
Compared with the prior art, the invention has the beneficial effects that: the device is improved aiming at the defects of the existing device, so that smoke and ozone are preliminarily collided and mixed, nitric oxide is oxidized, then a man-made gas column is constructed in the rotary cylinder, the gas concentration of unit volume is increased, the reaction speed is improved, the telescopic hydraulic lever drives the piston ring to move downwards, and then liquid is forced to be squeezed into the rotary cylinder, so that the gas concentration in the rotary cylinder is improved, the chemical reaction speed is improved, impurities in ammonia water are removed by arranging the impurity removal assembly, and the problem of impurity accumulation is avoided;
at the in-service use, supplementary compounding piece is along with when the stirring pipe rotates, and liquid gets into along feedstock channel, then discharges from discharging channel to produce ascending water column, thereby strike with the gas of downcast, make liquid and gaseous intensive mixing, help improving the purifying effect to gas.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic structural view of the auxiliary mixing block of the present invention.
Fig. 4 is a schematic structural view of the inside of the auxiliary mixing block according to the present invention.
Wherein: the device comprises a box body 1, an exhaust port 2, a driving motor 3, a telescopic hydraulic cylinder 4, a connecting rod 5, a liquid storage box 6, a piston ring 7, an elastic sealing outer ring 8, an elastic sealing inner ring 9, a blanking pipe 10, a stirring blade 11, an auxiliary mixing block 12, a flue gas inlet pipe 13, a base 14, a booster pump 15, a buffer box 16, a circulating pump 17, a purifying box 18, a circulating outer pipe 19, an ozone generator 20, a liquid discharge pipe 21, a stirring pipe 22, a mixing rod 23, a communicating pipe 24, an exhaust pipe 25, a porous plate 121, a feeding channel 122 and a discharging channel 123.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, in the embodiment of the present invention, an ozone oxidation method flue gas denitration apparatus includes a tank 1 and a base 14 disposed below the tank 1, two sides of an upper end of the base 14 are connected and fixed with the tank 1 through support columns, an ammonia solution is filled in the tank 1, a liquid discharge pipe 21 is disposed on a left lower side of the tank 1, an exhaust pipe 25 is disposed on a left upper side of the tank 1, a liquid discharge valve is disposed on the liquid discharge pipe 21, a driving motor 3 is disposed at a middle position of a top of the tank 1, an output end of the driving motor 3 is provided with a stirring pipe 22, a lower end of the stirring pipe 22 is extended out of a bottom of the tank 1 and extends into a buffer tank 16 located at the bottom of the tank 1, the tank 1 and the stirring pipe 22 are rotatably connected through a sealed bearing, an air inlet port on a left side of the buffer tank 16 is connected to an ozone generator 20 through a guide, the flue gas advances all to be equipped with booster pump 15 on the exhaust end of pipe 13 and ozone generator 20, two air inlets symmetry settings of buffer box 16 make two strands of air currents can take place to collide when getting into buffer box 16 for the mode of this kind of setting makes ozone and flue gas carry out preliminary mixture, thereby makes the nitric oxide in the flue gas can be oxidized into nitrogen dioxide.
In order to further improve the preliminary mixing effect, a mixing blade is arranged on the stirring pipe 22 inside the buffer tank 16.
Still be equipped with reinforced part on the box 1, reinforced part is including setting up the liquid reserve tank 6 on box 1 right side, the liquid reserve tank 6 passes through the feed port of unloading pipe 10 connection box 1, be equipped with the unloading valve that is used for controlling the material underflow on the liquid reserve tank 6, through adding aqueous ammonia in liquid reserve tank 6, just so can provide aqueous ammonia for box 1, also can add hydrogen peroxide solution at liquid reserve tank 6 to provide the liquid oxidant, help the oxidation treatment to reducing substance.
A rotating cylinder which is coaxial with the stirring pipe 22 is arranged in the box body 1, the upper end of the rotating cylinder is fixedly connected with the stirring pipe 22, in order to improve mechanical properties, reinforcing ribs are arranged between the rotating cylinder and the stirring pipe 22, exhaust ports 2 are arranged on two sides of the upper end of the stirring pipe 22, and a plurality of material mixing rods 23 used for mixing gas are arranged on the surface of the stirring pipe 22 below the exhaust ports 2;
be equipped with supplementary material piece 12 of mixing under the rotatory section of thick bamboo on port place stirring pipe 22, supplementary material piece 12 of mixing includes the rectangular block and sets up feedstock channel 122 on the rectangular block, feedstock channel 122 sets up the upstream face at the rectangular block, the rectangular block up end is equipped with discharging channel 123, discharging channel 123 and feedstock channel 122 intercommunication, discharging channel 123 up end is equipped with perforated plate 121, feedstock channel 122 is the little tapered channel of the big interior port of outer port, and in the during operation, supplementary material piece 12 of mixing is along with stirring pipe 22 rotates, and liquid gets into along feedstock channel 122, then discharges from discharging channel 123 to produce ascending water column, thereby strike with the gas of downflow, make liquid and gaseous intensive mixing, help improving the purifying effect to gas.
In order to improve the gas-liquid mixing effect, the inner wall of the rotary cylinder is provided with a liquid level sensor for detecting the liquid level so that only part of the feeding channel 122 is arranged below the liquid level, thus the material entering the feeding channel 122 is not limited to liquid, but is a gas-liquid mixture, and the gas-liquid mixture is sprayed out of the discharging channel 123 so as to be mixed with the gas flowing downwards.
The stirring pipe 22 is provided with a one-way valve for controlling the one-way flow of gas.
Example 2
The improved rotary cylinder is characterized in that a piston component used for adjusting gas in the rotary cylinder is arranged in the box body 1, the piston component comprises a piston ring 7 which is arranged on the outer side of the rotary cylinder in a sliding mode and is sleeved with an elastic sealing inner ring 9 in a sliding sealing mode on the inner wall of the rotary cylinder, an elastic sealing outer ring 8 in a sliding sealing mode on the inner wall of the box body 1 is arranged on the outer side of the piston ring 7, a connecting rod 5 is arranged at the upper end of the piston ring 7, the upper end of the connecting rod 5 is connected with the output end of a telescopic hydraulic cylinder 4, a communicating pipe 24 penetrates through the upper end face and the lower end face of the piston ring 7, a pressure limiting valve is arranged on the communicating pipe 24, and when the improved rotary cylinder is in actual use, the piston ring 7 is driven to move downwards through.
Example 3
Stirring blades 11 are symmetrically arranged on two sides of the lower end of the rotary cylinder, and the gas and the liquid are mixed by the aid of the stirring blades 11 along with rotation of the rotary cylinder.
Example 4
Still be equipped with the edulcoration subassembly that is used for getting rid of the inside impurity of aqueous ammonia on the box 1, the edulcoration subassembly sets up two intercommunication mouths in the box 1 bottom including the intercommunication, through circulation outer tube 19 intercommunication between two intercommunication mouths, be equipped with on the circulation outer tube 19 and be used for carrying out filterable purifying box 18 to impurity, be equipped with the filter screen in the purifying box 18, still be equipped with the circulating pump 17 that is used for promoting the material constantly to get into purifying box 18 on the circulation outer tube 19, in the continuous entering purifying box 18 of aqueous ammonia under circulating pump 17's effect, impurity can be detained in the aqueous ammonia, inside box 1 then can be got back to clean aqueous ammonia, just so avoid the impurity deposit inside the box.
The working principle of the invention is as follows: ammonia water is injected into the box body 1, oxygen generated by an ozone generator and flue gas in a flue gas channel are sent into a buffer box 16 through a booster pump 15, so that preliminary mixing of ozone and the flue gas is completed, nitric oxide is oxidized, then the mixed gas rises along a stirring pipe 22 and is discharged from an exhaust port 2, as the mixed gas flows downwards, a mixing rod 23 can mix the gas, when the stirring pipe 22 rotates, liquid enters along a feeding channel 122 and is discharged from a discharging channel 123, an upward water column is generated, so that the gas flowing downwards is impacted, the liquid and the gas are fully mixed, the gas purification effect is improved, and in order to improve the gas-liquid mixing effect, a liquid level sensor for detecting the liquid level height is arranged on the inner wall of the rotary cylinder, so that only part of the liquid level of the feeding channel 122 is arranged below the gas level, this allows the material entering the feed channel 122 not only to be liquid but also to be a gas-liquid mixture, so that the gas-liquid mixture is ejected from the discharge channel 123, thereby facilitating the mixing with the downward-flowing gas;
adjust the inside atmospheric pressure of rotatory section of thick bamboo as required, drive piston ring 7 downstream through flexible hydraulic lever 4, and then force liquid to extrude in the rotatory section of thick bamboo to improve the inside gas concentration of rotatory section of thick bamboo, help improving chemical reaction speed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The ozone oxidation method flue gas denitration device comprises a box body (1) and a base (14) arranged below the box body (1), wherein two sides of the upper end of the base (14) are fixedly connected with the box body (1) through supporting columns, an ammonia water solution is filled in the box body (1), a liquid discharge pipe (21) is arranged on the lower left side of the box body (1), an exhaust pipe (25) is arranged on the upper left side of the box body (1), and a liquid discharge valve is arranged on the liquid discharge pipe (21);
the device is characterized in that a driving motor (3) is arranged in the middle of the top of the box body (1), an output end of the driving motor (3) is provided with a stirring pipe (22), the lower end of the stirring pipe (22) is transmitted out of the bottom of the box body (1) and extends into a buffer box (16) positioned at the bottom of the box body (1), the box body (1) and the stirring pipe (22) are rotatably connected through a sealing bearing, an air inlet port on the left side of the buffer box (16) is connected with an ozone generator (20) through a guide pipe, an air inlet port on the right side of the buffer box (16) is connected with a flue gas inlet pipe (13) for providing flue gas, booster pumps (15) are arranged on exhaust ends of the flue gas inlet pipe (13) and the ozone generator (20), and two air inlets of the buffer box (16) are;
a rotating cylinder which is coaxial with the stirring pipe (22) is arranged in the box body (1), the upper end of the rotating cylinder is fixedly connected with the stirring pipe (22), in order to improve mechanical properties, a reinforcing rib is arranged between the rotating cylinder and the stirring pipe (22), exhaust ports (2) are arranged on two sides of the upper end of the stirring pipe (22), and a plurality of mixing rods (23) used for mixing gas are arranged on the surface of the stirring pipe (22) below the exhaust ports (2);
an auxiliary mixing block (12) is arranged on a stirring pipe (22) where the lower port of the rotary cylinder is located, the auxiliary mixing block (12) comprises a rectangular block and a feeding channel (122) arranged on the rectangular block, the feeding channel (122) is arranged on the water facing surface of the rectangular block, a discharging channel (123) is arranged on the upper end surface of the rectangular block, the discharging channel (123) is communicated with the feeding channel (122), a porous plate (121) is arranged on the upper end surface of the discharging channel (123), and the feeding channel (122) is a conical channel with an outer port being large and an inner port being small;
the box body (1) is further provided with an impurity removing assembly used for removing impurities in the ammonia water.
2. The device for denitration of flue gas by ozone oxidation according to claim 1, wherein a feeding part is further arranged on the box body (1), the feeding part comprises a liquid storage tank (6) arranged on the right side of the box body (1), the liquid storage tank (6) is connected with a feeding port of the box body (1) through a discharging pipe (10), and a discharging valve for controlling the material to flow downwards is arranged on the liquid storage tank (6).
3. The ozone oxidation flue gas denitration device according to claim 1, wherein a mixing blade is provided on the stirring pipe (22) inside the buffer tank (16).
4. The device for denitrating flue gas by ozone oxidation according to claim 1, wherein the inner wall of the rotary drum is provided with a liquid level sensor for detecting the liquid level so that the feeding channel (122) is only partially arranged below the liquid level.
5. The device for denitration of flue gas by ozone oxidation as claimed in claim 1, wherein a check valve for controlling unidirectional flow of gas is provided on said stirring pipe (22).
6. The ozone oxidation flue gas denitration device according to claim 1, wherein a piston component for adjusting gas inside the rotary cylinder is arranged inside the box body (1), the piston component comprises a piston ring (7) which is slidably sleeved outside the rotary cylinder, an elastic sealing inner ring (9) which is slidably sealed with the inner wall of the rotary cylinder is slidably fitted in an inner hole of the piston ring (7), an elastic sealing outer ring (8) which is slidably fitted with the inner wall of the box body (1) is arranged outside the piston ring (7), a connecting rod (5) is arranged at the upper end of the piston ring (7), the upper end of the connecting rod (5) is connected with the output end of the telescopic hydraulic cylinder (4), communicating pipes (24) penetrate through the upper end surface and the lower end surface of the piston ring (7), and pressure limiting valves are arranged on the communicating pipes (24.
7. The ozone oxidation flue gas denitration device of claim 1, wherein stirring blades (11) are symmetrically arranged on two sides of the lower end of the rotary drum.
8. The ozone oxidation flue gas denitration device according to claim 1, wherein the impurity removal assembly comprises two communicating ports which are communicated with each other and arranged at the bottom of the box body (1), the two communicating ports are communicated with each other through a circulating outer pipe (19), a purification box (18) for filtering impurities is arranged on the circulating outer pipe (19), a filter screen is arranged in the purification box (18), and a circulating pump (17) for promoting materials to continuously enter the purification box (18) is further arranged on the circulating outer pipe (19).
9. A treatment method of a flue gas denitration apparatus by ozone oxidation according to any one of claims 1 to 8, wherein the preliminary mixing of ozone and flue gas is performed by injecting ammonia water into the interior of a tank body (1), then feeding oxygen gas generated by an ozone generator and flue gas in a flue gas passage into a buffer tank (16) through a booster pump (15) to perform oxidation treatment of nitrogen monoxide, and then the mixed gas rises along a stirring pipe (22) and is discharged from an exhaust port (2), and as the mixed gas flows downward, a mixing rod (23) performs mixing treatment of the gas, and as the stirring pipe (22) rotates, liquid enters along a feed passage (122) and is then discharged from a discharge passage (123) to generate an upward water column to collide with the gas flowing downward, so that the liquid and the gas are sufficiently mixed, the gas purification device has the advantages that the gas purification effect is improved, the liquid level sensor used for detecting the liquid level height is arranged on the inner wall of the rotary cylinder, so that only part of the feeding channel (122) is arranged below the liquid level, the telescopic hydraulic lever (4) drives the piston ring (7) to move downwards, and then liquid is forced to extrude into the rotary cylinder, the gas concentration in the rotary cylinder is improved, and the chemical reaction speed is improved.
CN201911301135.0A 2019-12-17 2019-12-17 Ozone oxidation flue gas denitration device and method Withdrawn CN111068490A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111892209A (en) * 2020-08-25 2020-11-06 德里克环境科技(江苏)有限公司 Wastewater treatment device and method convenient for sufficient catalytic oxidation
CN111905544A (en) * 2020-06-01 2020-11-10 贵州匙惠科技有限公司 Ozone treatment nitrogen oxide oxidation high-efficiency flue gas mixing device
CN112058053A (en) * 2020-08-06 2020-12-11 南京汉尔斯生物科技有限公司 Flue gas wet denitration device and method
CN113019098A (en) * 2021-03-03 2021-06-25 湛江开发区隆源矿业有限公司 Industrial flue gas SCR denitration mixed reaction device
CN116870743A (en) * 2023-09-05 2023-10-13 包头职业技术学院 Raw material mixing equipment for alloy production

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111905544A (en) * 2020-06-01 2020-11-10 贵州匙惠科技有限公司 Ozone treatment nitrogen oxide oxidation high-efficiency flue gas mixing device
CN112058053A (en) * 2020-08-06 2020-12-11 南京汉尔斯生物科技有限公司 Flue gas wet denitration device and method
WO2022027967A1 (en) * 2020-08-06 2022-02-10 南京汉尔斯生物科技有限公司 Flue gas wet denitrification device and method
CN111892209A (en) * 2020-08-25 2020-11-06 德里克环境科技(江苏)有限公司 Wastewater treatment device and method convenient for sufficient catalytic oxidation
CN113019098A (en) * 2021-03-03 2021-06-25 湛江开发区隆源矿业有限公司 Industrial flue gas SCR denitration mixed reaction device
CN116870743A (en) * 2023-09-05 2023-10-13 包头职业技术学院 Raw material mixing equipment for alloy production

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