WO2022027967A1 - 一种烟气湿法脱硝装置及方法 - Google Patents

一种烟气湿法脱硝装置及方法 Download PDF

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Publication number
WO2022027967A1
WO2022027967A1 PCT/CN2021/080622 CN2021080622W WO2022027967A1 WO 2022027967 A1 WO2022027967 A1 WO 2022027967A1 CN 2021080622 W CN2021080622 W CN 2021080622W WO 2022027967 A1 WO2022027967 A1 WO 2022027967A1
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box
flue gas
pipe
lifting cylinder
stirring
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PCT/CN2021/080622
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English (en)
French (fr)
Inventor
孙经纬
刘飞
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南京汉尔斯生物科技有限公司
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Publication of WO2022027967A1 publication Critical patent/WO2022027967A1/zh

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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
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds

Definitions

  • the invention relates to the technical field of flue gas treatment equipment, in particular to a flue gas wet denitrification device and method.
  • the commonly used flue gas denitration methods are selective catalytic reduction (SCR) and non-selective catalytic reduction.
  • SCR selective catalytic reduction
  • SNCR non-selective catalytic reduction.
  • the original method SNCR.
  • the SCR method has high denitrification efficiency, but the initial investment is large, and it is easy to produce ammonia escape and pollute the environment. Hazardous to catalysts and air preheaters.
  • the SNCR denitrification technology uses the furnace as the reactor, the system is simple, the investment and operation and maintenance costs are low, but the denitration efficiency is low, which cannot meet the requirements of ultra-low emission.
  • Traditional wet denitrification uses lye to absorb NOx and generates a large amount of sodium nitrate and sodium nitrite, which is easy to cause secondary pollution and has low denitration efficiency.
  • the existing patent publication number CN208482234U discloses a denitrification device, which adopts ozone oxidation and ammonia absorption to remove nitrogen oxides in flue gas, and the denitration efficiency is above 85%.
  • the flow area of the flue gas is small, the contact is sufficient, and the oxidation efficiency is ensured, and the process water system is increased to ensure the capture efficiency of NO2, which is conducive to the subsequent reaction;
  • the purpose of the present invention is to provide a flue gas wet denitrification device and method to solve the problems raised in the above background technology.
  • a flue gas wet denitrification device comprising a box for carrying ammonia water and a drive motor, the lower end of the box is provided with legs symmetrically on both sides, the lower end of the legs is provided with a support block, and the lower left side of the box
  • a discharge pipe is provided for discharging, a discharge valve is provided on the discharge pipe, a stirring pipe is provided at the output end of the driving motor, and a mixing box is provided on the top of the box to facilitate the penetration of the stirring pipe,
  • the surface of the stirring pipe where the mixing box is located is provided with an air inlet, the mixing box is provided with a sealing bearing matched with the stirring pipe, and the flue gas inlet pipe on the right side of the box is communicated with the mixing box.
  • the air inlet port on the left side of the box is connected to the ozone generator through a conduit, and both the flue gas inlet pipe and the exhaust end of the ozone generator are provided with a booster pump for promoting gas circulation, and the stirring pipe where the mixing box is located There are mixing blades on the surface;
  • a rotating drum is coaxially provided on the outside of the stirring tube, and the length of the rotating drum is greater than that of the stirring tube, so that the lower port of the stirring tube is located inside the rotating drum, and a compressed air column is constructed inside the rotating drum by using atmospheric pressure;
  • a number of stirring plates are distributed in an array outside the lower end of the rotating drum, and the stirring plates rotate with the rotating drum to further mix the gas with ammonia water, so as to absorb nitrogen dioxide in the gas.
  • the outer side of the rotating cylinder is provided with a lifting cylinder
  • the surface of the rotating cylinder inside the lifting cylinder is provided with a lifting blade
  • at least one return pipe is distributed in an array outside the upper end of the lifting cylinder.
  • the filter assembly includes a screening ring plate arranged in a ring shape on the inner wall of the box, and a plurality of filter screens are embedded on the screening ring plate;
  • the outer side of the lifting cylinder is provided with a side rod located above the screening ring plate, the lower side of the side rod is provided with a cleaning brush for pressing against the surface of the filter screen, and the side rod and the tangent to the surface of the lifting cylinder are arranged at a certain angle.
  • the included angle is sixty degrees.
  • the surface of the box body where the screening ring plate is located is provided with an opening and a box door arranged at the opening.
  • the lower end of the rotating drum is provided with a guide cone, and the diameter of the bottom of the guide cone is larger than the diameter of the lifting drum.
  • a storage tank for storing hydrogen peroxide is also connected to the feed port at the top of the box.
  • a detector for detecting the concentrations of nitrate ions, ammonium ions and hydrogen peroxide is arranged inside the box.
  • a processing method of a flue gas wet denitrification device the inside of the box is filled with an ammonia solution, and then the flue gas and ozone are sent into a mixing box for preliminary mixing, so that the reducibility in the flue gas is oxidized, and then mixed
  • the gas forms an air column inside the rotating drum, so that the air inside is compressed, and the overflowing mixed gas will be stirred by the stirring plate, then rise and then be discharged from the exhaust pipe.
  • the lifting drum rotates with the rotating drum, the lifting blade will The ammonia water is pushed up along the inner wall of the lifting cylinder, and then the ammonia water falls back from the return pipe to the inside of the box.
  • ammonia water that absorbs nitrogen dioxide is sent to the filter assembly for filtration, so as to avoid the accumulation of impurities inside the device, and here, after filtration, a washing liquid that sprays the gas will be produced, so as to purify the floating gas again.
  • the invention improves the shortcomings of the existing device, so that the ozone and the flue gas can be fully mixed, and the oxidation effect is improved, and an air column is constructed inside the box body, and the mixed gas of the ozone and the flue gas is compressed by the atmospheric pressure, so that the smoke is Gas and ozone provide a buffer area for fully oxidizing reducing substances in flue gas.
  • the air column here is compressed under the action of atmospheric pressure, thereby increasing the concentration of ozone and flue gas and helping to improve the reaction speed.
  • the reducing substances in the flue gas are further oxidized by the liquid oxidant, and the gas generated by the decomposition of hydrogen peroxide can further promote the mixing effect of oxygen, ozone and reducing gas, so that the reducing gas reaction is more sufficient.
  • FIG. 1 is a schematic structural diagram of the present invention.
  • FIG. 2 is a schematic structural diagram of a lifting drum and a rotating drum in the present invention.
  • FIG. 3 is a schematic structural diagram of a side bar and a lifting cylinder in the present invention.
  • flue gas inlet pipe 1 booster pump 2, mixing box 3, air inlet 4, lifting cylinder 5, box 6, stirring pipe 7, rotating cylinder 8, lifting blade 9, outrigger 10, support block 11 , discharge pipe 12, guide cone 13, stirring plate 14, filter screen 15, screening ring plate 16, cleaning brush 17, side rod 18, return pipe 19, mixing blade 20, exhaust pipe 21, ozone generator 22,
  • the drive motor 23 is driven.
  • a flue gas wet denitrification device in an embodiment of the present invention, includes a box body 6 for carrying ammonia water and a drive motor 23.
  • the lower end of the box body 6 is symmetrically provided with legs 10 on both sides.
  • the lower end of the outrigger 10 is provided with a support block 11
  • the lower left side of the box body 6 is provided with a discharge pipe 12 for discharging
  • the discharge pipe 12 is provided with a discharge valve.
  • the output end is provided with a stirring pipe 7, the inner top of the box body 6 is provided with a mixing box 3 which is convenient for the stirring pipe 7 to pass through, and the surface of the stirring pipe 7 where the mixing box 3 is located is provided with an air inlet 4.
  • the ozone generator 22 is provided with a sealed bearing matched with the stirring pipe 7, the flue gas inlet pipe 1 on the right side of the box body 6 is communicated with the mixing box 3, and the gas inlet port on the left side of the box body 6 is connected to the ozone generator through a conduit.
  • the device 22, the exhaust end of the flue gas inlet pipe 1 and the ozone generator 22 are all provided with a booster pump 2 for promoting gas circulation, and the surface of the stirring pipe 7 where the mixing box 3 is located is provided with mixing blades 20 , Driven by the drive motor 23, the mixing blade 20 will rotate with the stirring tube 7, thereby promoting the rapid mixing of the flue gas and ozone, so that the nitrogen monoxide in the flue gas is oxidized into nitrogen dioxide, here by means of the stirring tube.
  • the rotating force of the device enables the ozone and flue gas to be fully mixed, eliminating the disadvantage of insufficient mixing in the existing device;
  • the outer side of the stirring tube 7 is coaxially provided with a rotating drum 8.
  • the length of the rotating drum 8 is greater than the length of the stirring tube 7, so that the lower port of the stirring tube 7 is located inside the rotating drum 8.
  • An air column is formed inside the cylinder 8, which provides a buffer area for the flue gas and ozone, which is convenient for fully oxidizing the reducing substances in the flue gas.
  • the air column here is compressed under the action of atmospheric pressure, thereby increasing the ozone and smoke.
  • the concentration of gas helps to improve the reaction speed;
  • stirring plates 14 are arranged in an array outside the lower end of the rotating drum 8.
  • the stirring plates 14 rotate with the rotating drum 8 to further mix the gas with ammonia water, so as to absorb nitrogen dioxide in the gas.
  • the outer side of the rotating cylinder 8 is provided with a lifting cylinder 5, the surface of the rotating cylinder 8 inside the lifting cylinder 5 is provided with a lifting blade 9, and at least one return pipe 19 is distributed in an array on the outer side of the upper end of the lifting cylinder 5.
  • the lifting blade 9 will push the ammonia water upward along the inner wall of the lifting drum 5, and then the ammonia water will fall back from the return pipe 19 to the inside of the box 6.
  • Ammonia water and purifying filter components so that the ammonia water that absorbs nitrogen dioxide can be continuously sent to the filter components for filtration, so as to avoid the accumulation of impurities inside the device, and the gas spray will be washed here after filtration. liquid, so as to purify the floating gas again.
  • the filter assembly includes a screening ring plate 16 arranged in a ring shape on the inner wall of the box body 6, and a plurality of filter screens 15 are embedded on the screening ring plate 16, so that impurities in the ammonia water will accumulate on the screening ring plate 16.
  • the surface of the box 6 where the screening ring plate 16 is located is provided with an opening and a box door arranged at the opening, and the impurities on the screening ring plate 16 can be removed by opening the box door later. take out.
  • a side bar 18 located above the screening ring plate 16 is provided on the outer side of the lifting cylinder 5, and a cleaning brush 17 for pressing against the surface of the filter screen 15 is provided on the lower side of the side bar 18.
  • the side bar 18 and the tangent to the surface of the lifting cylinder 5 are arranged at a certain angle, and the included angle is 60 degrees. This way of setting at a certain included angle will cause the cleaned impurities to move around, so as to avoid the blockage of impurities.
  • the filter screen also facilitates the maintenance of the maintenance personnel in the later period.
  • a guide cone 13 is provided at the lower end of the rotating cylinder 8, and the diameter of the bottom of the guide cone 13 is larger than the diameter of the lifting cylinder 5, so that it overflows along the edge of the lower end of the guide cone 13. The gas will not be captured by the lifting cylinder 3.
  • the feeding port on the top of the box body 6 is also connected with a storage box for storing hydrogen peroxide.
  • a storage box for storing hydrogen peroxide.
  • the inside of the box body 6 is provided with a detector for detecting the ion concentration.
  • a detector for detecting the concentration of nitrate ions, ammonium ions and hydrogen peroxide, the concentration of the materials inside the box body 6 is controlled, so that the materials can be replaced in time to ensure that the device is continuously effective. purification performance.
  • the working principle of the present invention is as follows: the inside of the box body 6 is filled with an ammonia solution, and then the flue gas and ozone are sent into the mixing box for preliminary mixing, so that the reducibility in the flue gas is oxidized, and then the mixed gas is in the rotating drum. 8
  • An air column is formed inside, so that the air inside is compressed, so as to provide a buffer area for the flue gas and ozone, which is convenient to fully oxidize the reducing substances in the flue gas.
  • the air column here is compressed under the action of atmospheric pressure, Thereby increasing the concentration of ozone and flue gas, helping to improve the reaction speed;
  • the overflowing mixed gas will be stirred by the stirring plate 14, then rise and then be discharged from the exhaust pipe 21.
  • the lifting blade 9 will push the ammonia water upward along the inner wall of the lifting drum 5, and then The ammonia water falls back from the return pipe 19 to the inside of the box 6, and the inner wall of the box 6 is provided with a filter assembly for receiving the ammonia water falling from the return pipe 19 and purifying it, so that the ammonia water that absorbs nitrogen dioxide can be continuously removed. It is sent to the filter assembly for filtration, so as to avoid the accumulation of impurities inside the device, and after filtration, a washing liquid that sprays the gas will be produced, so as to purify the floating gas again.

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Abstract

一种烟气湿法脱硝装置及方法，装置包括用于承载氨水的箱体（6）和驱动电机（23），驱动电机（23）的输出端设有搅拌管（7）；箱体（6）内顶部设有混料箱（3），混料箱（3）所在的搅拌管（7）表面设有进气口（4），箱体（6）右侧的烟气进管（1）与混料箱（3）连通，箱体（6）左侧的进气端口通过导管连接臭氧发生器（22），混料箱（3）所在的搅拌管（7）表面设有混料叶片（20）；搅拌管（7）外侧同轴设有旋转筒（8），旋转筒（8）的长度大于搅拌管（7）的长度，由此利用大气压在旋转筒（8）内部构建一个被压缩的空气柱，从而增大了臭氧和烟气的浓度，有助于提高反应速度；旋转筒（8）外侧设有提升筒（5），提升筒（5）内部的旋转筒（8）表面设有提升叶片（9），提升筒（5）上端外侧阵列分布有至少一个回流管(19)，在提升筒（5）随着旋转筒（8）旋转时，提升叶片（9）会将氨水沿着提升筒（5）内壁向上推动，随后氨水从回流管（19）中回落至箱体（6）内部，箱体（6）内壁设有用于承接回流管(19)下落氨水并对其进行净化处理的过滤组件。

Description

一种烟气湿法脱硝装置及方法 技术领域
本发明涉及烟气处理设备技术领域，具体是一种烟气湿法脱硝装置及方法。
 背景技术
目前应用比较普遍的烟气脱硝方法是选择性催化还原法(SCR)和非选择性催化还 原法(SNCR)。SCR法脱硝效率高，但是初投资大，易产生氨逃逸，污染环境，部分SO2在SCR反应器中的催化剂作用下，被氧化形成SO3，与未参与脱硝反应的氨气反应生成硫酸氢铵，对催化剂和空预器造成危害。SNCR脱硝技术以炉膛为反应器，系统简单，投资和运维费用低，但是脱硝效率较低，不能满足超低排放的要求。传统的湿法脱硝采用碱液吸收NOx，生成大量的硝酸钠和亚硝酸钠，容易造成二次污染，且脱硝效率较低。
针对上述问题，现有专利公告号为CN208482234U的专利公布了一种脱硝装置，采用臭氧氧化、氨水吸收的方法脱除烟气中的氮氧化物，脱硝效率在85％以上，与其他脱硫脱硝装置相比，将臭氧布置在入口烟道内喷射，此时烟气的通流面积较小，接触充分，保证氧化效率，并增加工艺水系统，保证NO2的捕集效率，利于后续的反应进行；
但是现有专利中所记载的技术方案只是简单的将臭氧和烟气简单混合，无法保证烟气中一氧化氮被氧化，另外该装置在实际工作时会导致内部固体杂质的堆积，进而导致后期无法工作的问题，基于此，现在提供一种烟气湿法脱硝装置及方法。
 技术问题
本发明的目的在于提供一种烟气湿法脱硝装置及方法，以解决上述背景技术中提出的问题。
 技术解决方案
一种烟气湿法脱硝装置，包括用于承载氨水的箱体和驱动电机，所述箱体下端两侧对称设有支腿，所述支腿下端设有支撑块，所述箱体左下侧设有用于排料的排料管，所述排料管上设有排料阀，所述驱动电机的输出端设有搅拌管，所述箱体内顶部设有便于搅拌管贯穿的混料箱，混料箱所在的搅拌管表面设有进气口，所述混料箱上设有与搅拌管相配合的密封轴承，所述箱体右侧的烟气进管与混料箱连通，所述箱体左侧的进气端口通过导管连接臭氧发生器，所述烟气进管和臭氧发生器排气端上都设有用于促进气体流通的增压泵，所述混料箱所在的搅拌管表面设有混料叶片；
所述搅拌管外侧同轴设有旋转筒，所述旋转筒的长度大于搅拌管的长度，这样就使得搅拌管下端口位于旋转筒内部，利用大气压在旋转筒内部构建一个被压缩的空气柱；
所述旋转筒下端外侧阵列分布有若干个搅拌板，所述搅拌板随着旋转筒转动，可以使得气体进一步与氨水混合，以便对气体中二氧化氮的吸收。
所述旋转筒外侧设有提升筒，所述提升筒内部的旋转筒表面设有提升叶片，所述提升筒上端外侧阵列分布有至少一个回流管，在提升筒随着旋转筒旋转时，提升叶片会将氨水沿着提升筒内壁向上推动，随后氨水从回流管中回落至箱体内部，所述箱体内壁设有用于承接回流管下落氨水并对其进行净化处理的过滤组件。
作为本发明进一步的方案：所述过滤组件包括设置在箱体内壁呈环状设置的筛选环板，所述筛选环板上嵌设有若干个过滤网；
提升筒外侧设有位于筛选环板上方的侧杆，所述侧杆下侧设有用于抵住过滤网表面的清理刷，所述侧杆与提升筒表面切线呈一定夹角设置。
作为本发明进一步的方案：所述夹角为六十度。
作为本发明进一步的方案：所述筛选环板所在箱体表面设有开口以及设置在开口处的箱门。
作为本发明进一步的方案：所述旋转筒下端设有引导锥，所述引导锥底部直径大于提升筒的直径。
作为本发明进一步的方案：所述箱体顶部的进料口还连接有用于存储双氧水的存储箱。
作为本发明进一步的方案：所述箱体内部设有用于对硝酸根离子、铵离子、双氧水浓度进行检测的检测器。
一种烟气湿法脱硝装置的处理方法，在箱体内部填充有氨水溶液，然后将烟气和臭氧送入混合箱中进行初步混合，使得烟气中的还原性被氧化，随后混合后的气体在旋转筒内部形成空气柱，使得其内部的空气被压缩，溢出的混合气体会被搅拌板搅拌，随后上升然后从排气管中排出，在提升筒随着旋转筒旋转时，提升叶片会将氨水沿着提升筒内壁向上推动，随后氨水从回流管中回落至箱体内部，所述箱体内壁设有用于承接回流管下落氨水并对其进行净化处理的过滤组件，这样就可以不断的将吸收二氧化氮的氨水送入过滤组件进行过滤，从而避免装置内部杂质堆积，并且这里在过滤后会产生对气体喷淋的洗涤液，从而对上浮的气体进行再次净化处理。
 有益效果
本发明针对现有装置的缺点进行改进，使得臭氧与烟气可以充分混合，提高了氧化效果，并且在箱体内部构建空气柱，利用大气压对臭氧和烟气的混合气体进行压缩，使得为烟气和臭氧提供一个缓存区域，便于将烟气中还原性物质充分氧化，另外此处的空气柱在大气压的作用下被压缩，从而增大了臭氧和烟气的浓度，有助于提高反应速度，另外通过加入双氧水作为液体氧化剂，通过液体氧化剂对烟气中还原性物质进一步氧化，且利用双氧水分解产生气体可以进一步促使氧气、臭氧以及还原性气体的混合效果，使得还原性气体反应更加充分。
 附图说明
图1为本发明的结构示意图。
图2为本发明中提升筒和旋转筒的结构示意图。
图3为本发明中侧杆与提升筒的结构示意图。
其中：烟气进管1、增压泵2、混料箱3、进气口4、提升筒5、箱体6、搅拌管7、旋转筒8、提升叶片9、支腿10、支撑块11、排料管12、引导锥13、搅拌板14、过滤网15、筛选环板16、清理刷17、侧杆18、回流管19、混料叶片20、排气管21、臭氧发生器22、驱动电机23。
 本发明的实施方式
[0008] 下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
请参阅图1-3，本发明实施例中，一种烟气湿法脱硝装置，包括用于承载氨水的箱体6和驱动电机23，所述箱体6下端两侧对称设有支腿10，所述支腿10下端设有支撑块11，所述箱体6左下侧设有用于排料的排料管12，所述排料管12上设有排料阀，所述驱动电机23的输出端设有搅拌管7，所述箱体6内顶部设有便于搅拌管7贯穿的混料箱3，混料箱3所在的搅拌管7表面设有进气口4，所述混料箱3上设有与搅拌管7相配合的密封轴承，所述箱体6右侧的烟气进管1与混料箱3连通，所述箱体6左侧的进气端口通过导管连接臭氧发生器22，所述烟气进管1和臭氧发生器22排气端上都设有用于促进气体流通的增压泵2，所述混料箱3所在的搅拌管7表面设有混料叶片20，在驱动电机23的带动下，混料叶片20会随着搅拌管7转动，进而促使烟气与臭氧快速混合，从而使得烟气中的一氧化氮被氧化成二氧化氮，这里借助搅拌管的旋转力使得臭氧和烟气可以充分混合，消除了现有装置中存在混合不充分的弊端；
所述搅拌管7外侧同轴设有旋转筒8，所述旋转筒8的长度大于搅拌管7的长度，这样就使得搅拌管7下端口位于旋转筒8内部，这种设置的好处是在旋转筒8内部形成空气柱，使得为烟气和臭氧提供一个缓存区域，便于将烟气中还原性物质充分氧化，另外此处的空气柱在大气压的作用下被压缩，从而增大了臭氧和烟气的浓度，有助于提高反应速度；
所述旋转筒8下端外侧阵列分布有若干个搅拌板14，所述搅拌板14随着旋转筒8转动，可以使得气体进一步与氨水混合，以便对气体中二氧化氮的吸收。
所述旋转筒8外侧设有提升筒5，所述提升筒5内部的旋转筒8表面设有提升叶片9，所述提升筒5上端外侧阵列分布有至少一个回流管19，在提升筒5随着旋转筒8旋转时，提升叶片9会将氨水沿着提升筒5内壁向上推动，随后氨水从回流管19中回落至箱体6内部，所述箱体6内壁设有用于承接回流管19下落氨水并对其进行净化处理的过滤组件，这样就可以不断的将吸收二氧化氮的氨水送入过滤组件进行过滤，从而避免装置内部杂质堆积，并且这里在过滤后会产生对气体喷淋的洗涤液，从而对上浮的气体进行再次净化处理。
所述过滤组件包括设置在箱体6内壁呈环状设置的筛选环板16，所述筛选环板16上嵌设有若干个过滤网15，这样氨水中的杂质会堆积在筛选环板16上，避免杂质在箱体6底部堆积造成堵塞的问题，所述筛选环板16所在箱体6表面设有开口以及设置在开口处的箱门，后期可以通过打开箱门将筛选环板16上的杂质取出。
为了避免杂质堆积在过滤网15表面，所述提升筒5外侧设有位于筛选环板16上方的侧杆18，所述侧杆18下侧设有用于抵住过滤网15表面的清理刷17，所述侧杆18与提升筒5表面切线呈一定夹角设置，所述夹角为六十度，这种呈一定夹角设置的方式会促使被清理的杂质向四周位移，这样就避免杂质堵塞过滤网，同时也方便了维护人员后期的维护。
实施例2
为了避免旋转筒8底部溢出的臭氧进入提升筒5内部，所述旋转筒8下端设有引导锥13，所述引导锥13底部直径大于提升筒5的直径，这样沿着引导锥13下端边缘溢出的气体则不会被提升筒3捕捉。
实施例3
所述箱体6顶部的进料口还连接有用于存储双氧水的存储箱，可以通过在氨水内部添加双氧水，通过液体氧化剂对烟气中还原性物质进一步氧化，且利用双氧水分解产生气体可以进一步促使氧气、臭氧以及还原性气体的混合效果，使得还原性气体反应更加充分。
实施例4
所述箱体6内部设有检测离子浓度的检测器，通过对硝酸根离子、铵离子、双氧水浓度的检测，从而对箱体6内部物料浓度进行把控，以便及时更换物料，保证装置持续有效的净化性能。
本发明的工作原理是：在箱体6内部填充有氨水溶液，然后将烟气和臭氧送入混合箱中进行初步混合，使得烟气中的还原性被氧化，随后混合后的气体在旋转筒8内部形成空气柱，使得其内部的空气被压缩，使得为烟气和臭氧提供一个缓存区域，便于将烟气中还原性物质充分氧化，另外此处的空气柱在大气压的作用下被压缩，从而增大了臭氧和烟气的浓度，有助于提高反应速度；
溢出的混合气体会被搅拌板14搅拌，随后上升然后从排气管21中排出，在提升筒5随着旋转筒8旋转时，提升叶片9会将氨水沿着提升筒5内壁向上推动，随后氨水从回流管19中回落至箱体6内部，所述箱体6内壁设有用于承接回流管19下落氨水并对其进行净化处理的过滤组件，这样就可以不断的将吸收二氧化氮的氨水送入过滤组件进行过滤，从而避免装置内部杂质堆积，并且这里在过滤后会产生对气体喷淋的洗涤液，从而对上浮的气体进行再次净化处理。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (8)

  1. 一种烟气湿法脱硝装置，包括用于承载氨水的箱体（6）和驱动电机（23），所述箱体（6）下端两侧对称设有支腿（10），所述支腿（10）下端设有支撑块（11），所述箱体（1）左下侧设有用于排料的排料管（12），所述排料管（12）上设有排料阀，所述驱动电机（23）的输出端设有搅拌管（7）；
    其特征在于，所述箱体（1）内顶部设有便于搅拌管（7）贯穿的混料箱（3），混料箱（3）所在的搅拌管（7）表面设有进气口（4），所述混料箱（3）上设有与搅拌管（7）相配合的密封轴承，所述箱体（1）右侧的烟气进管（1）与混料箱（3）连通，所述箱体（1）左侧的进气端口通过导管连接臭氧发生器（22），所述烟气进管（1）和臭氧发生器（22）排气端上都设有用于促进气体流通的增压泵（2），所述混料箱（3）所在的搅拌管（7）表面设有混料叶片（20）；
    所述搅拌管（7）外侧同轴设有旋转筒（8），所述旋转筒（8）的长度大于搅拌管（7）的长度，这样就使得搅拌管（7）下端口位于旋转筒（8）内部，利用大气压在旋转筒（8）内部构建一个被压缩的空气柱；
    所述旋转筒（8）下端外侧阵列分布有若干个搅拌板（14）；
    所述旋转筒（8）外侧设有提升筒（5），所述提升筒（5）内部的旋转筒（8）表面设有提升叶片（9），所述提升筒（5）上端外侧阵列分布有至少一个回流管（19），在提升筒（5）随着旋转筒（8）旋转时，提升叶片（9）会将氨水沿着提升筒（5）内壁向上推动，随后氨水从回流管（19）中回落至箱体（6）内部，所述箱体（6）内壁设有用于承接回流管（19）下落氨水并对其进行净化处理的过滤组件。
  2. 根据权利要求1所述的烟气湿法脱硝装置，其特征在于，所述过滤组件包括设置在箱体（6）内壁呈环状设置的筛选环板（16），所述筛选环板（16）上嵌设有若干个过滤网（15）；
    提升筒（5）外侧设有位于筛选环板（16）上方的侧杆（18），所述侧杆（18）下侧设有用于抵住过滤网（15）表面的清理刷（17），所述侧杆（18）与提升筒（5）表面切线呈一定夹角设置。
  3. 根据权利要求2所述的烟气湿法脱硝装置，其特征在于，所述夹角为六十度。
  4. 根据权利要求2所述的烟气湿法脱硝装置，其特征在于，所述筛选环板（16）所在箱体（6）表面设有开口以及设置在开口处的箱门。
  5. 根据权利要求1所述的烟气湿法脱硝装置，其特征在于，所述旋转筒（8）下端设有引导锥（13），所述引导锥（13）底部直径大于提升筒（5）的直径。
  6. 根据权利要求1-5任一所述的烟气湿法脱硝装置，其特征在于，所述箱体（6）顶部的进料口还连接有用于存储双氧水的存储箱。
  7. 根据权利要求1所述的烟气湿法脱硝装置，其特征在于，所述箱体（6）内部设有用于对硝酸根离子、铵离子、双氧水浓度进行检测的检测器。
  8. 一种权利要求1-7任一所述烟气湿法脱硝装置的处理方法，在箱体（6）内部填充有氨水溶液，然后将烟气和臭氧送入混合箱中进行初步混合，使得烟气中的还原性被氧化，随后混合后的气体在旋转筒（8）内部形成空气柱，使得其内部的空气被压缩，溢出的混合气体会被搅拌板（14）搅拌，随后上升然后从排气管（21）中排出，在提升筒（5）随着旋转筒（8）旋转时，提升叶片（9）会将氨水沿着提升筒（5）内壁向上推动，随后氨水从回流管（19）中回落至箱体（6）内部，所述箱体（6）内壁设有用于承接回流管（19）下落氨水并对其进行净化处理的过滤组件，这样就可以不断的将吸收二氧化氮的氨水送入过滤组件进行过滤，从而避免装置内部杂质堆积，并且这里在过滤后会产生对气体喷淋的洗涤液，从而对上浮的气体进行再次净化处理。
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