CN107583429A - A kind of ship flue gas desulfurization removes nitre device and technique - Google Patents
A kind of ship flue gas desulfurization removes nitre device and technique Download PDFInfo
- Publication number
- CN107583429A CN107583429A CN201711006715.8A CN201711006715A CN107583429A CN 107583429 A CN107583429 A CN 107583429A CN 201711006715 A CN201711006715 A CN 201711006715A CN 107583429 A CN107583429 A CN 107583429A
- Authority
- CN
- China
- Prior art keywords
- spray column
- flue gas
- slurry
- heat exchanger
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000003546 flue gas Substances 0.000 title claims abstract description 72
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 17
- 230000023556 desulfurization Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 title claims abstract 3
- 239000007921 spray Substances 0.000 claims abstract description 109
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 55
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002351 wastewater Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 113
- 239000013535 sea water Substances 0.000 claims description 71
- 239000007788 liquid Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000003518 caustics Substances 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 241000282470 Canis latrans Species 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 210000002966 serum Anatomy 0.000 claims 3
- 239000010865 sewage Substances 0.000 claims 2
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000006385 ozonation reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000004202 carbamide Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 150000004763 sulfides Chemical class 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 229910052815 sulfur oxide Inorganic materials 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
技术领域technical field
本发明涉及大气环境保护领域，特别是关于一种船舶烟气脱硫除硝装置及工艺。The invention relates to the field of atmospheric environment protection, in particular to a ship flue gas desulfurization and denitrification device and process.
背景技术Background technique
随着船舶运输业的发展，船机排气污染日益加剧，排放的污染物包括氮氧化物(NOx)、硫氧化物(SOx)、一氧化碳(CO)、碳氢化合物(HC)以及颗粒物(PM)等，并具有流动性大、扩散性大、持续时间长等特点。据国际海事组织(IMO)2014年统计数据显示，船舶排放的SOx、NOx分别约占全球排放总量的13％和15％。中国环保部机动车排污监控中心统计显示，2013年全国船舶SO2排放量约占全国排放总量的8.4％，NOx排放量占11.3％，受船舶污染影响最大的是港口城市，其次是江河沿岸城市。船机排气污染已成为继机动车尾气污染、工业企业排放污染之后，我国的第三大大气污染来源，已引起全社会的强烈关注。With the development of the shipping industry, the exhaust pollution of ship engines is increasing day by day. The pollutants emitted include nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), hydrocarbons (HC) and particulate matter (PM ), etc., and has the characteristics of large fluidity, large diffusion, and long duration. According to the statistics of the International Maritime Organization (IMO) in 2014, SOx and NOx emitted by ships accounted for about 13% and 15% of the global total emissions, respectively. Statistics from the Motor Vehicle Emission Monitoring Center of the Ministry of Environmental Protection of China show that in 2013, SO2 emissions from ships accounted for about 8.4% of the country's total emissions, and NOx emissions accounted for 11.3%. Port cities are most affected by ship pollution, followed by cities along rivers . Ship engine exhaust pollution has become the third largest source of air pollution in my country after motor vehicle exhaust pollution and industrial enterprise emission pollution, and has aroused strong concern from the whole society.
中国交通运输部提出了《船舶与港口污染防治专项行动实施方案(2015-2020年)》，明确指出，到2020年，珠三角、长三角、环渤海(京津冀)水域船舶硫氧化物、氮氧化物、颗粒物与2015年相比分别下降65％、20％、30％。因此，当前我国的船机排气污染控制政策主要分为三个方面：一是通过严格控制船舶使用的燃油来实现SO2的控制；二是通过排放标准来限制CO、HC、NOx以及PM等的排放；三是通过积极推广使用岸电，减少船舶靠港期间的尾气排放，打造“绿色港口”。船舶废气治理迫在眉睫。The Ministry of Transport of the People's Republic of China has proposed the "Implementation Plan for Special Actions on the Prevention and Control of Ship and Port Pollution (2015-2020)", which clearly states that by 2020, sulfur oxides, Nitrogen oxides and particulate matter decreased by 65%, 20% and 30% respectively compared with 2015. Therefore, my country's current ship engine exhaust pollution control policies are mainly divided into three aspects: one is to achieve SO2 control through strict control of the fuel used by ships; the other is to limit CO, HC, NOx and PM through emission standards. The third is to actively promote the use of shore power to reduce exhaust emissions during the berthing of ships and create a "green port". Ship exhaust gas treatment is imminent.
目前针对船舶尾气的处理技术的研发仍处于起步阶段。CN 206397567 U公开了船舶废气脱硝系统，其脱硝反应器主要包括尿素蒸发室、混合器与反应室，该尿素蒸发室设有尿素溶液喷枪，该混合器连接该尿素蒸发室与该反应室，废气经该废气脱硝管路进入该脱硝反应器的尿素蒸发室后，与尿素混合并经该混合器进入该反应室进行脱硝后排出。CN104326604 B公开了一种基于纳碱法的船舶废气脱硫洗涤水处理工艺及其处理系统，主要是将船舶废气脱硫洗涤水引入中和氧化一体池，通过曝气风机向池中鼓入空气将亚硫酸盐氧化为硫酸盐，加入氢氧化纳溶液调节中和氧化一体池中的船舶废气脱硫洗涤水的pH值达到排放标准，并利用曝气扰动进行中和调质。常用的船舶废气处理技术有SCR，EGR，洗涤器等技术，这些技术原理不同，各有其适用范围和特点、优缺点。因此，市场上仍缺少一种能够满足排放要求、占地小、效率高、维护简单、适应海上水上特殊自然环境的船舶烟气脱硝处理系统。At present, the research and development of ship exhaust treatment technology is still in its infancy. CN 206397567 U discloses a ship exhaust gas denitrification system. Its denitrification reactor mainly includes a urea evaporation chamber, a mixer and a reaction chamber. The urea evaporation chamber is provided with a urea solution spray gun. The mixer is connected to the urea evaporation chamber and the reaction chamber. After entering the urea evaporation chamber of the denitrification reactor through the waste gas denitrification pipeline, it is mixed with urea and enters the reaction chamber through the mixer for denitration and then discharged. CN104326604 B discloses a ship waste gas desulfurization washing water treatment process and its treatment system based on the sodium-alkali method. Sulphate is oxidized to sulfate, and sodium hydroxide solution is added to adjust the pH value of the ship exhaust gas desulfurization washing water in the neutralization and oxidation integrated tank to meet the discharge standard, and the neutralization and conditioning are carried out by aeration disturbance. Commonly used ship exhaust gas treatment technologies include SCR, EGR, scrubber and other technologies. These technologies have different principles and each has its scope of application, characteristics, advantages and disadvantages. Therefore, there is still a lack of a ship flue gas denitration treatment system that can meet the emission requirements, occupy a small area, have high efficiency, simple maintenance, and adapt to the special natural environment on the sea.
发明内容Contents of the invention
本发明的目的在于提供一种能够持续稳定运行的、能耗少、占地小、效率高、维护简单、适应海上水上特殊自然环境的一种船舶烟气脱硫除硝装置及工艺。The purpose of the present invention is to provide a ship flue gas desulfurization and denitrification device and process that can continue to operate stably, consume less energy, occupy a small area, have high efficiency, be easy to maintain, and adapt to the special natural environment on the sea.
本发明的一个目的是公开一种船舶烟气脱硫除硝装置，为实现上述发明目的，本发明采取的技术方案如下。One object of the present invention is to disclose a ship flue gas desulfurization and denitrification device. In order to achieve the above object of the invention, the technical solutions adopted by the present invention are as follows.
一种船舶烟气脱硫除硝装置，包括喷淋塔及与其相连的烟道，烟道沿烟气运动方向依次设置有烟道进气口、臭氧喷射器、第一喷嘴，所述臭氧喷射器通过管道与臭氧发生器连接；喷淋塔与烟道的连接口为喷淋塔进气口，喷淋塔进气口前的管道呈一定坡度向塔体方向倾斜；烟气通过喷淋塔进气口进入喷淋塔内，所述喷淋塔主体空间轴向方向沿烟气的运动方向依次设置有整流多孔板、第二喷嘴、第三喷嘴、烟气冷却器、除雾层、喷淋塔出气口，所述第一喷嘴、第二喷嘴、第三喷嘴均与浆液分流装置连接，所述浆液分流装置与浆液循环泵的出水口连接，所述浆液循环泵的入水口与设置于所述喷淋塔下部的喷淋塔浆液出口连接。浆液分流装置能够同时向所述第一喷嘴、第二喷嘴、第三喷嘴供给喷淋用的浆液，浆液与烟气发生反应后进去所述预洗塔，通过所述喷淋塔浆液出口进入所述所述浆液循环泵，形成完成的浆液循环。A ship flue gas desulfurization and denitrification device, comprising a spray tower and a flue connected to it, the flue is sequentially provided with a flue air inlet, an ozone injector, and a first nozzle along the movement direction of the flue gas, and the ozone injector It is connected to the ozone generator through a pipeline; the connection port between the spray tower and the flue is the air inlet of the spray tower, and the pipe in front of the air inlet of the spray tower is inclined toward the tower body with a certain slope; The gas port enters the spray tower, and the axial direction of the main space of the spray tower is sequentially provided with a rectifying perforated plate, a second nozzle, a third nozzle, a smoke cooler, a demister layer, a spray The gas outlet of the tower, the first nozzle, the second nozzle and the third nozzle are all connected to the slurry distribution device, the slurry distribution device is connected to the outlet of the slurry circulation pump, and the water inlet of the slurry circulation pump is connected to the The slurry outlet of the spray tower at the lower part of the spray tower is connected. The slurry splitting device can supply the slurry for spraying to the first nozzle, the second nozzle, and the third nozzle at the same time. The slurry circulation pump described above forms a complete slurry circulation.
作为优选，所述喷淋塔的底部为倒圆锥体，能够较好的收集废液，并在倒圆锥体的中心设置有喷淋塔废水出口。Preferably, the bottom of the spray tower is an inverted cone, which can better collect waste liquid, and the center of the inverted cone is provided with a waste water outlet of the spray tower.
作为优选，还包括与所述烟气冷却器依次连接的第一海水泵、第一过滤器；所述烟气冷却器是呈螺旋状分布的蛇形管热交换装置，海水通过所述第一过滤器被所述第一海水泵抽入，从中央进入所述烟气冷却器，与烟气交换热后从管另一端排出船外。所述烟气冷却器可降低烟气温度，大大减少烟气中水含量，降低水雾携带量。Preferably, it also includes a first seawater pump and a first filter sequentially connected to the flue gas cooler; the flue gas cooler is a coiled tube heat exchange device distributed in a spiral shape, and seawater passes through the first The filter is sucked in by the first seawater pump, enters the flue gas cooler from the center, exchanges heat with the flue gas, and is discharged outboard from the other end of the pipe. The flue gas cooler can reduce the temperature of the flue gas, greatly reduce the water content in the flue gas, and reduce the carrying amount of water mist.
作为优选，还包括热交换器、第二海水泵、第二过滤器；所述热交换器设置有热交换器海水进口、热交换器海水出口、热交换器浆液进口、热交换器浆液出口；所述热交换器海水进口依次与所述第二海水泵、所述第二过滤器连接，所述热交换器海水出口与船外连接，所述热交换器浆液进口与所述浆液循环泵出水口连接，所述热交换器浆液出口与所述浆液分流装置连接。浆液通过所述热交换器浆液进口进入所述热交换器内，通过所述热交换器浆液出口流出，所述第二海水泵抽取海水通过所述热交换器海水进口进入热交换器内，与海水通过热量交换后得到冷却，然后通过所述热交换器海水出口排出船外。Preferably, it also includes a heat exchanger, a second seawater pump, and a second filter; the heat exchanger is provided with a heat exchanger seawater inlet, a heat exchanger seawater outlet, a heat exchanger slurry inlet, and a heat exchanger slurry outlet; The seawater inlet of the heat exchanger is connected to the second seawater pump and the second filter in turn, the seawater outlet of the heat exchanger is connected to the outboard, and the slurry inlet of the heat exchanger is connected to the slurry circulating pump The water port is connected, and the slurry outlet of the heat exchanger is connected with the slurry splitting device. The slurry enters the heat exchanger through the slurry inlet of the heat exchanger, flows out through the slurry outlet of the heat exchanger, and the seawater pumped by the second seawater pump enters the heat exchanger through the seawater inlet of the heat exchanger, and The seawater is cooled after heat exchange, and then discharged overboard through the seawater outlet of the heat exchanger.
作为优选，还包括配药室、药剂存储箱、第三海水泵、第三过滤器以及设置于喷淋塔侧壁的喷淋塔浆液入口，所述配药室出口与所述喷淋塔通过喷淋塔浆液入口连接；所述配药室第一入口依次与第三海水泵、第三过滤器连接，所述配药室第二入口与药剂存储箱连接。海水通过所述第三过滤器被所述第三海水泵抽入，进入配药室内，与药剂存储箱内存储的碱性物质混合，配置成所述浆液。所述碱性物质为苛性碱或者氧化镁。苛性碱是常用的碱，价格便宜，碱性高，容易使用，但腐蚀性强易潮解，如果使用苛性碱配置喷淋液，在存储时要注意防腐防潮，药剂存储箱要做相应的处理。氧化镁是常见的碱性氧化物，呈粉状，无毒无害，做喷淋的消耗量只有苛性碱的1/4，所以所需存储空间小。但它于水中溶解度较低，配置的喷淋液呈浆液状，如果使用氧化镁配置喷淋液，循环喷淋泵应换成能运输浆液的泵。Preferably, it also includes a dispensing chamber, a medicament storage tank, a third seawater pump, a third filter, and a spray tower slurry inlet arranged on the side wall of the spray tower, and the outlet of the dispensing chamber is connected to the spray tower by spraying The slurry inlet of the tower is connected; the first inlet of the dispensing chamber is connected with the third seawater pump and the third filter in sequence, and the second inlet of the dispensing chamber is connected with the medicine storage tank. The seawater is drawn in by the third seawater pump through the third filter, enters the dispensing chamber, mixes with the alkaline substance stored in the medicine storage tank, and configures the slurry. The alkaline substance is caustic alkali or magnesium oxide. Caustic alkali is a commonly used alkali. It is cheap, highly alkaline, and easy to use, but it is highly corrosive and prone to deliquescence. If caustic alkali is used to configure spray liquid, it should be protected from corrosion and moisture during storage, and the chemical storage box should be treated accordingly. Magnesium oxide is a common alkaline oxide, which is in powder form, non-toxic and harmless, and the consumption of spraying is only 1/4 of that of caustic soda, so the required storage space is small. However, its solubility in water is low, and the configured spray liquid is in the form of a slurry. If magnesium oxide is used to configure the spray liquid, the circulating spray pump should be replaced with a pump that can transport the slurry.
作为优选，还包括与所述喷淋塔废水出口依次连接的废水处理装置、废水收集箱、污泥处理装置连接。可在船体上直接处理废水，节约窗体空间保护环境。Preferably, it also includes a wastewater treatment device, a wastewater collection tank, and a sludge treatment device that are sequentially connected to the wastewater outlet of the spray tower. Waste water can be directly treated on the hull, saving window space and protecting the environment.
作为优选，所述整流多孔板直径与塔体内径相同，所述整流多孔板上开多个圆形小孔，开孔率为50-80％，优选值58％，可以更好地平整气流。Preferably, the diameter of the rectifying perforated plate is the same as the inner diameter of the tower, and a plurality of small circular holes are opened on the rectifying perforated plate with an opening rate of 50-80%, preferably 58%, which can better smooth the airflow.
作为优选，所述除雾层为防腐的折板除雾器，去除烟气中夹带的水汽。Preferably, the demister layer is an anti-corrosion folded plate demister to remove water vapor entrained in the flue gas.
作为优选，还包括pH计和液位计，所述pH计和液位计均设置在塔体底部的倒圆锥体中。Preferably, a pH meter and a liquid level meter are also included, and both the pH meter and the liquid level meter are arranged in the inverted cone at the bottom of the tower body.
本发明的另一个目的，是公开一种根据上述装置的船舶烟气脱硫除硝工艺，包括以下处理步骤：Another object of the present invention is to disclose a ship flue gas desulfurization and denitrification process according to the above-mentioned device, including the following processing steps:
(1)船舶烟气通过烟道进气口进入烟道，臭氧发生器产生臭氧输送至臭氧喷射器，臭氧喷射器在向烟气逆向喷射臭氧，臭氧能氧化低价氮氧化物和硫化物，如一氧化氮(NO)氧化成二氧化氮(NO2)，二氧化硫(SO2)氧化成三氧化硫(SO3)；(1) The ship flue gas enters the flue through the flue inlet, the ozone generator generates ozone and sends it to the ozone injector, and the ozone injector sprays ozone in the opposite direction to the flue gas, and the ozone can oxidize low-priced nitrogen oxides and sulfides, For example, nitric oxide (NO) is oxidized to nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ) is oxidized to sulfur trioxide (SO 3 );
(2)经过步骤(1)处理的船舶烟气与第一喷嘴喷出的浆液发生第一次循环洗涤，高价氮氧化物和三氧化硫相比低价氧化物能够与水反应成为酸，然后浆液中碱性物质和酸发生酸碱中和反应脱硫除硝，氮氧化物和硫化物被吸收，第一喷嘴喷出的浆液进入烟道底部，通过烟道底部倾斜的管道进入喷淋塔，通过喷淋塔底部的喷淋塔浆液出口回到浆液循环泵，形成完整循环；(2) The ship flue gas treated in step (1) and the slurry ejected from the first nozzle are washed in the first cycle, and the high-valence nitrogen oxides and sulfur trioxide can react with water to become acids, and then The alkaline substances and acids in the slurry undergo acid-base neutralization reaction to desulfurize and denitrify, nitrogen oxides and sulfides are absorbed, the slurry sprayed from the first nozzle enters the bottom of the flue, and enters the spray tower through the inclined pipe at the bottom of the flue. Return to the slurry circulation pump through the spray tower slurry outlet at the bottom of the spray tower to form a complete cycle;
(3)经过步骤(2)处理的船舶烟气通过喷淋塔进气口进入喷淋塔内，通过整流多孔板平整气流，与第二喷嘴和第三喷嘴接连发生两次循环洗涤，进一步吸收氮氧化物和硫化物，第二喷嘴和第三喷嘴喷出的浆液进入预洗塔底部，通过预洗塔底部的喷淋塔浆液出口回到浆液循环泵，形成完整循环；(3) The ship flue gas treated in step (2) enters the spray tower through the air inlet of the spray tower, passes through the rectified perforated plate to smooth the air flow, and undergoes two consecutive cycle washings with the second nozzle and the third nozzle to further absorb Nitrogen oxides and sulfides, the slurry sprayed by the second nozzle and the third nozzle enters the bottom of the pre-washing tower, and returns to the slurry circulation pump through the slurry outlet of the spray tower at the bottom of the pre-washing tower to form a complete cycle;
(4)经过步骤(3)处理的船舶烟气，依次通过烟气冷却器冷却、除雾器除湿，海水通过所述第一过滤器被所述第一海水泵抽入，从中央进入所述烟气冷却器，与烟气交换热后从管另一端排出船外，可降低烟气温度，大大减少烟气中水含量，降低水雾携带量，随后，除雾器为防腐的折板除雾器，去除烟气中夹带的水汽，经过净化后的达标烟气通过喷淋塔出气口排出；(4) The ship flue gas treated in step (3) is sequentially cooled by the flue gas cooler and dehumidified by the demister, and the seawater is sucked in by the first seawater pump through the first filter, and enters the The flue gas cooler, after exchanging heat with the flue gas, is discharged outboard from the other end of the pipe, which can reduce the temperature of the flue gas, greatly reduce the water content in the flue gas, and reduce the amount of water mist carried. The fogger removes the water vapor entrained in the flue gas, and the purified flue gas that reaches the standard is discharged through the outlet of the spray tower;
(5)通过设置于塔体底部的倒圆锥体中pH计和液位计判断塔体液位和pH值，如果液位高于设定值，打开塔体底部的喷淋塔废水出口，废水流入废水处理装置、废水收集箱、污泥处理装置中，得到处理，如果pH值低于设定值，加入喷淋塔浆液入口输入浆液，浆液在配药室内完成配置；配药室通过第三海水泵和第三过滤器输入过滤后的海水，通过药剂存储箱输入碱性物质，然后混合配置成所述浆液。如果使用苛性碱配置喷淋液，在存储时要注意防腐防潮，药剂存储箱要做相应的处理。如果使用氧化镁，由于其水中溶解度较低，配置的喷淋液呈浆液状，如果使用氧化镁配置喷淋液，循环喷淋泵应换成能运输浆液的泵；(5) Judging the liquid level and pH value of the tower body by the pH meter and liquid level gauge in the inverted cone arranged at the bottom of the tower body, if the liquid level is higher than the set value, open the waste water outlet of the spray tower at the bottom of the tower body, and the waste water flows into In the wastewater treatment device, wastewater collection tank, and sludge treatment device, it is treated. If the pH value is lower than the set value, add the slurry inlet of the spray tower to input the slurry, and the slurry is configured in the dispensing room; the dispensing room passes through the third seawater pump and The third filter inputs the filtered seawater, and the alkaline substance is input through the chemical storage tank, and then mixed and configured to form the slurry. If caustic alkali is used to configure the spray liquid, attention should be paid to anti-corrosion and moisture-proof during storage, and the chemical storage box should be treated accordingly. If magnesium oxide is used, due to its low solubility in water, the configured spray liquid is in the form of slurry. If magnesium oxide is used to configure spray liquid, the circulating spray pump should be replaced with a pump that can transport slurry;
当浆液循环泵工作时，打开热交换器、第二海水泵、第二过滤器；浆液通过所述热交换器浆液进口进入所述热交换器内，通过所述热交换器浆液出口流出，所述第二海水泵抽取海水通过所述热交换器海水进口进入热交换器内，与海水通过热量交换后得到冷却，然后通过所述热交换器海水出口排出船外，浆液中碱性物质和酸发生酸碱中和反应脱硫除硝是放热反应，降低循环浆液温度，能够更加有效的脱硫除硝。When the slurry circulation pump works, open the heat exchanger, the second seawater pump, and the second filter; the slurry enters the heat exchanger through the slurry inlet of the heat exchanger, and flows out through the slurry outlet of the heat exchanger, so The seawater pumped by the second seawater pump enters the heat exchanger through the seawater inlet of the heat exchanger, is cooled by heat exchange with seawater, and then is discharged overboard through the seawater outlet of the heat exchanger, and the alkaline substances and acids in the slurry The desulfurization and denitrification of the acid-base neutralization reaction is an exothermic reaction, and the temperature of the circulating slurry can be lowered to achieve more effective desulfurization and denitrification.
相对于现有技术，本发明取得了有益的技术效果：Compared with the prior art, the present invention has achieved beneficial technical effects:
1.本装置结合臭氧氧化技术和喷淋吸收技术来处理船舶烟气，用臭氧氧化了低价氮氧化物和二氧化硫，使其污染物利于被后续的三次循环喷淋吸收高效去除。1. This device combines ozone oxidation technology and spray absorption technology to treat ship flue gas, and oxidizes low-priced nitrogen oxides and sulfur dioxide with ozone, so that pollutants can be efficiently removed by subsequent three-cycle spray absorption.
2.处理完的废水能够回收污泥化处理，环保高效；2. The treated wastewater can be recycled into sludge, which is environmentally friendly and efficient;
3.工艺设置合理，装置占地面积小、结构简单、维护简便、在船舶上建设或改建都很方便、建设成本低，不仅能够提高装置的利用效率，又降低了工艺的复杂性。3. The process setting is reasonable, the device occupies a small area, the structure is simple, the maintenance is simple, the construction or reconstruction on the ship is very convenient, and the construction cost is low. It can not only improve the utilization efficiency of the device, but also reduce the complexity of the process.
附图说明Description of drawings
图1装置工艺流程示意图；Fig. 1 device technological process schematic diagram;
图2烟气冷却器局部放大图；Figure 2 Partial enlarged view of the flue gas cooler;
图3整流多孔板局部放大图。Fig. 3 Partial enlarged view of rectifying perforated plate.
附图标记：喷淋塔1、烟道2、烟道进气口3、臭氧喷射器4、臭氧发生器5、第一喷嘴6、喷淋塔进气口7、整流多孔板8、第二喷嘴9、第三喷嘴10、烟气冷却器11、除雾层12、喷淋塔出气口13、第一海水泵14、第一过滤器15、热交换器16、热交换器海水进口161、热交换器海水出口162、热交换器浆液进口163、热交换器浆液出口164、第二海水泵17、第二过滤器18、浆液循环泵19、配药室20、第三海水泵21、第三过滤器22、药剂存储箱23、污泥处理装置24、废水收集箱25、废水处理装置26、喷淋塔废水出口27、喷淋塔浆液出口28、喷淋塔浆液入口29、浆液循环泵出水口30、浆液分流装置31。Reference signs: spray tower 1, flue 2, flue air inlet 3, ozone injector 4, ozone generator 5, first nozzle 6, spray tower air inlet 7, rectifying perforated plate 8, second Nozzle 9, third nozzle 10, flue gas cooler 11, defogging layer 12, spray tower air outlet 13, first sea water pump 14, first filter 15, heat exchanger 16, heat exchanger sea water inlet 161, Heat exchanger seawater outlet 162, heat exchanger slurry inlet 163, heat exchanger slurry outlet 164, second seawater pump 17, second filter 18, slurry circulation pump 19, dispensing chamber 20, third seawater pump 21, third Filter 22, chemical storage tank 23, sludge treatment device 24, waste water collection tank 25, waste water treatment device 26, spray tower waste water outlet 27, spray tower slurry outlet 28, spray tower slurry inlet 29, slurry circulation pump out A water port 30 and a slurry splitting device 31.
具体实施方式detailed description
下面结合附图对本发明的具体实施方式作进一步说明：The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
实施例Example
一种船舶烟气脱硫除硝装置，如图1所示，其主体结构为喷淋塔1及与其相连的烟道2，喷淋塔1与烟道2的连接口为喷淋塔进气口7，喷淋塔进气口7前的通道呈一定坡度向塔体方向倾斜，以防治液体积在烟道内。烟道2一端设置有烟道进气口3，沿烟气运动方向依次设置有臭氧喷射器4、第一喷嘴6，所述臭氧喷射器4通过管道与臭氧发生器5连接。臭氧发生器4产生臭氧，通过臭氧喷射器4在烟道2中向烟气逆向喷射臭氧，臭氧能氧化低价氮氧化物和部分二氧化硫，便于后续喷淋吸收去除。经过臭氧处理过的烟气通过喷淋塔进气口7进入喷淋塔1内，所述喷淋塔1主体空间轴向方向沿炉烟气的运动方向依次设置有整流多孔板8、第二喷嘴9、第三喷嘴10、烟气冷却器11、除雾层12、喷淋塔出气口13，烟气与喷嘴中喷出的浆液发生化学作用进而得到处理，通过喷淋塔出气口13排出。A ship flue gas desulfurization and denitrification device, as shown in Figure 1, its main structure is a spray tower 1 and a flue 2 connected to it, and the connection port between the spray tower 1 and the flue 2 is the air inlet of the spray tower 7. The channel in front of the air inlet 7 of the spray tower is inclined towards the tower body with a certain slope to prevent liquid from accumulating in the flue. A flue air inlet 3 is arranged at one end of the flue 2, and an ozone injector 4 and a first nozzle 6 are arranged in sequence along the movement direction of the flue gas, and the ozone injector 4 is connected to the ozone generator 5 through a pipe. The ozone generator 4 generates ozone, and the ozone is sprayed reversely to the flue gas in the flue 2 through the ozone injector 4. The ozone can oxidize low-valent nitrogen oxides and part of sulfur dioxide, which is convenient for subsequent spray absorption and removal. The ozone-treated flue gas enters the spray tower 1 through the spray tower air inlet 7, and the axial direction of the main body space of the spray tower 1 is sequentially provided with a rectifying perforated plate 8, a second Nozzle 9, third nozzle 10, flue gas cooler 11, defogging layer 12, spray tower gas outlet 13, the flue gas reacts chemically with the slurry sprayed from the nozzle and is treated, and is discharged through the spray tower gas outlet 13 .
所述第一喷嘴6、第二喷嘴9和第三喷嘴10与浆液分流装置31连接，浆液分流装置31与浆液循环泵出水口30连接，喷淋塔1底部设置有喷淋塔浆液出口28，喷淋塔浆液出口28与浆液循环泵19入水口连接，浆液在喷淋塔内形成一个浆液循环。The first nozzle 6, the second nozzle 9 and the third nozzle 10 are connected to the slurry distribution device 31, the slurry distribution device 31 is connected to the outlet 30 of the slurry circulation pump, and the bottom of the spray tower 1 is provided with a spray tower slurry outlet 28, The slurry outlet 28 of the spray tower is connected to the water inlet of the slurry circulation pump 19, and the slurry forms a slurry circulation in the spray tower.
喷淋塔1的底部为倒圆锥体，能够较好地收集浆液，倒圆锥体的中心设置有喷淋塔废水出口27，喷淋塔废水出口27通过管道与废水处理装置26连接，废水处理装置26与废水收集箱25连接，废水收集箱25与污泥处理装置24连接。The bottom of the spray tower 1 is an inverted cone, which can better collect slurry. The center of the inverted cone is provided with a spray tower waste water outlet 27. The spray tower waste water outlet 27 is connected to the waste water treatment device 26 through a pipeline. The waste water treatment device 26 is connected with the waste water collection box 25, and the waste water collection box 25 is connected with the sludge treatment device 24.
喷淋塔1的侧壁设置有喷淋塔浆液入口29，喷淋塔浆液入口29与配药室20出口连接，配药室20第一入口依次与第三海水泵21、第三过滤器22连接，第三过滤器22与海水A连通，配药室20第二入口与药剂存储箱23连接，药剂存储箱23存储有碱性物质，如苛性碱或者氧化镁，第三海水泵21抽取海水进入配药室20，在配药室20按照一定比例混合混合海水和碱性物质得到所述浆液，所述浆液通过喷淋塔浆液入口29进入喷淋塔1内。The side wall of the spray tower 1 is provided with a spray tower slurry inlet 29, the spray tower slurry inlet 29 is connected to the outlet of the dispensing chamber 20, and the first inlet of the dispensing chamber 20 is connected with the third seawater pump 21 and the third filter 22 in turn, The third filter 22 communicates with the seawater A, the second entrance of the dispensing chamber 20 is connected to the medicine storage box 23, the medicine storage box 23 stores alkaline substances, such as caustic soda or magnesium oxide, and the third seawater pump 21 draws seawater into the medicine dispensing chamber 20. Mix seawater and alkaline substances in a certain proportion in the dispensing chamber 20 to obtain the slurry, and the slurry enters the spray tower 1 through the slurry inlet 29 of the spray tower.
作为优选的实施例，还包括热交换器16，热交换器16设置有热交换器海水进口161、热交换器海水出口162、热交换器浆液进口163、热交换器浆液出口164，热交换器浆液进口163与浆液循环泵出水口30连接，热交换器浆液出口164与浆液分流装置31连接，浆液分流装置31连接均与第一喷嘴6、第二喷嘴9和第三喷嘴10连接，浆液通过热交换器浆液进口163进入热交换器16内，通过热交换器浆液出口164流出；热交换器海水进口161依次与第二海水泵17、第二过滤器18连接，第二过滤器18连通海水A，热交换器海水出口162与船外B连接，第二海水泵17抽取海水通过热交换器海水进口161进入热交换器16内，与海水通过热量交换得到冷却，然后通过热交换器海水出口162排出船外。As a preferred embodiment, a heat exchanger 16 is also included, and the heat exchanger 16 is provided with a heat exchanger seawater inlet 161, a heat exchanger seawater outlet 162, a heat exchanger slurry inlet 163, a heat exchanger slurry outlet 164, and a heat exchanger The slurry inlet 163 is connected to the outlet 30 of the slurry circulation pump, the heat exchanger slurry outlet 164 is connected to the slurry distribution device 31, and the slurry distribution device 31 is connected to the first nozzle 6, the second nozzle 9 and the third nozzle 10, and the slurry passes through The heat exchanger slurry inlet 163 enters the heat exchanger 16 and flows out through the heat exchanger slurry outlet 164; the heat exchanger seawater inlet 161 is sequentially connected with the second seawater pump 17 and the second filter 18, and the second filter 18 is connected with seawater A, the seawater outlet 162 of the heat exchanger is connected to the outboard B, the seawater pumped by the second seawater pump 17 enters the heat exchanger 16 through the seawater inlet 161 of the heat exchanger, and is cooled by heat exchange with seawater, and then passes through the seawater outlet of the heat exchanger 162 discharged overboard.
烟气冷却器11如图2所示，烟气冷却器11依次与第一海水泵14、第一过滤器15连接，第一过滤器15与海水A连通，烟气冷却器11是呈螺旋状分布的蛇形管热交换装置，海水通过第一过滤器15被第一海水泵14抽入，从中央进入烟气冷却器11，与烟气交换热后从管另一端排出船外，烟气冷却器11可降低烟气温度，大大减少烟气中水含量，降低水雾携带量。The flue gas cooler 11 is shown in Fig. 2, the flue gas cooler 11 is connected with the first sea water pump 14 and the first filter 15 in turn, the first filter 15 communicates with the sea water A, and the flue gas cooler 11 is spiral Distributed serpentine tube heat exchange device, seawater is drawn in by the first seawater pump 14 through the first filter 15, enters the flue gas cooler 11 from the center, exchanges heat with the flue gas, and is discharged outboard from the other end of the pipe, and the flue gas The cooler 11 can reduce the temperature of the flue gas, greatly reduce the water content in the flue gas, and reduce the amount of water mist carried.
整流多孔板8如图3所述，所述整流多孔板8直径与塔体内径相同，所述整流多孔板8上开多个圆形小孔，开孔率为50-80％，优选值为58％。喷嘴喷出的液体呈雾状，喷射角度大于120°，能覆盖整个塔体内截面。所述除雾层12为防腐的折板除雾器，去除烟气中夹带的水汽。The rectification perforated plate 8 is as shown in Figure 3, the diameter of the rectification perforated plate 8 is the same as the inner diameter of the tower, a plurality of circular small holes are opened on the rectification perforated plate 8, the opening rate is 50-80%, and the preferred value is 58%. The liquid sprayed from the nozzle is in the form of mist, and the spray angle is greater than 120°, which can cover the entire section of the tower body. The demister layer 12 is an anti-corrosion folded plate demister, which removes the water vapor entrained in the flue gas.
作为优选的实施例，还包括pH计和液位计，所述pH计和液位计均设置在塔体底部的倒圆锥体中。As a preferred embodiment, a pH meter and a liquid level meter are also included, and the pH meter and the liquid level meter are both arranged in the inverted cone at the bottom of the tower body.
一种船舶烟气脱硫除硝工艺，包括以下处理步骤：A ship flue gas desulfurization and denitrification process, comprising the following processing steps:
(1)船舶烟气通过烟道进气口3进入烟道2，臭氧发生器5产生臭氧输送至臭氧喷射器4，臭氧喷射器4在向烟气逆向喷射臭氧，臭氧能氧化低价氮氧化物和硫化物，如一氧化氮(NO)氧化成二氧化氮(NO2)，二氧化硫(SO2)氧化成三氧化硫(SO3)；(1) The ship flue gas enters the flue 2 through the flue air inlet 3, the ozone generator 5 generates ozone and transports it to the ozone injector 4, and the ozone injector 4 sprays ozone in the opposite direction to the flue gas, and the ozone can oxidize low-valent nitrogen oxidation compounds and sulfides, such as nitric oxide (NO) is oxidized to nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ) is oxidized to sulfur trioxide (SO 3 );
(2)经过步骤(1)处理的船舶烟气与第一喷嘴6喷出的浆液发生第一次循环洗涤，高价氮氧化物和三氧化硫相比低价氧化物能够与水反应成为酸，然后浆液中碱性物质和酸发生酸碱中和反应脱硫除硝，氮氧化物和硫化物被吸收，第一喷嘴5喷出的浆液进入烟道底部，通过烟道底部倾斜的管道流入塔，通过喷淋塔1底部的喷淋塔浆液出口28回到浆液循环泵19，形成完整循环；(2) The first cycle washing occurs between the ship flue gas treated in step (1) and the slurry ejected from the first nozzle 6. Compared with sulfur trioxide, the high-valent nitrogen oxides and low-valent oxides can react with water to become acids, Then the alkaline substance and acid in the slurry undergo acid-base neutralization reaction to desulfurize and denitrify, nitrogen oxides and sulfide are absorbed, the slurry sprayed from the first nozzle 5 enters the bottom of the flue, and flows into the tower through the inclined pipe at the bottom of the flue. Return to the slurry circulation pump 19 through the spray tower slurry outlet 28 at the bottom of the spray tower 1 to form a complete cycle;
(3)经过步骤(2)处理的船舶烟气通过喷淋塔进气口7进入喷淋塔1内，通过整流多孔板8平整气流，与第二喷嘴9和第三喷嘴10接连发生两次循环洗涤，进一步吸收氮氧化物和硫化物，第二喷嘴9和第三喷嘴10喷出的浆液进入预洗塔1底部，通过预洗塔底部的喷淋塔浆液出口28回到浆液循环泵19，形成完整循环；(3) The ship flue gas processed in step (2) enters the spray tower 1 through the spray tower air inlet 7, passes through the rectifying perforated plate 8 to smooth the air flow, and takes place twice in succession with the second nozzle 9 and the third nozzle 10 Circulation washing, further absorption of nitrogen oxides and sulfides, the slurry sprayed by the second nozzle 9 and the third nozzle 10 enters the bottom of the pre-washing tower 1, and returns to the slurry circulation pump 19 through the spray tower slurry outlet 28 at the bottom of the pre-washing tower , forming a complete cycle;
(4)经过步骤(3)处理的船舶烟气，依次通过烟气冷却器11冷却、除雾层12除湿，海水通过所述第一过滤器14被所述第一海水泵15抽入，从中央进入所述烟气冷却器11，与烟气交换热后从管另一端排出船外，可降低烟气温度，大大减少烟气中水含量，降低水雾携带量，随后，除雾器12为防腐的折板除雾器，去除烟气中夹带的水汽，经过净化后的达标烟气通过喷淋塔出气口13排出；(4) The ship flue gas processed in step (3) is cooled by the flue gas cooler 11 and dehumidified by the demisting layer 12 successively, and seawater is sucked in by the first seawater pump 15 through the first filter 14, from which The center enters the flue gas cooler 11, and after exchanging heat with the flue gas, it is discharged outboard from the other end of the pipe, which can reduce the temperature of the flue gas, greatly reduce the water content in the flue gas, and reduce the amount of water mist carried. Then, the mist eliminator 12 It is an anti-corrosion folding plate demister, which removes the water vapor entrained in the flue gas, and the purified flue gas that meets the standard is discharged through the gas outlet 13 of the spray tower;
(5)通过设置于塔体底部的倒圆锥体中pH计和液位计判断塔体液位和pH值，如果液位高于设定值，打开塔体底部的喷淋塔废水出口27，废水流入废水处理装置26、废水收集箱25、污泥处理装置24中，得到处理，如果pH值低于设定值，通过喷淋塔浆液入口29输入浆液，浆液在配药室20内完成配置；配药室20通过第三海水泵21和第三过滤器22输入过滤后的海水，通过药剂存储箱23输入碱性物质，然后混合配置成所述浆液。如果使用苛性碱配置喷淋液，在存储时要注意防腐防潮，药剂存储箱要做相应的处理。如果使用氧化镁，由于其水中溶解度较低，配置的喷淋液呈浆液状，如果使用氧化镁配置喷淋液，循环喷淋泵应换成能运输浆液的泵；(5) Judging the tower body liquid level and the pH value by being arranged on the pH meter and the liquid level gauge in the inverted cone at the bottom of the tower body, if the liquid level is higher than the set value, open the spray tower waste water outlet 27 at the bottom of the tower body, and the waste water Flow into waste water treatment device 26, waste water collection tank 25, sludge treatment device 24, get treatment, if the pH value is lower than the set value, enter the slurry through the spray tower slurry inlet 29, and the slurry is configured in the dispensing chamber 20; dispensing The chamber 20 inputs filtered seawater through the third seawater pump 21 and the third filter 22, and inputs alkaline substances through the chemical storage tank 23, and then mixes and configures the slurry. If caustic alkali is used to configure the spray liquid, attention should be paid to anti-corrosion and moisture-proof during storage, and the chemical storage box should be treated accordingly. If magnesium oxide is used, due to its low solubility in water, the configured spray liquid is in the form of slurry. If magnesium oxide is used to configure spray liquid, the circulating spray pump should be replaced with a pump that can transport slurry;
当浆液循环泵19工作时，打开热交换器16、第二海水泵17、第二过滤器18；浆液通过所述热交换器浆液进口163进入所述热交换器16内，通过所述热交换器浆液出口162流出，所述第二海水泵17抽取海水通过所述热交换器海水进口161进入热交换器16内，与海水通过热量交换后得到冷却，然后通过所述热交换器海水出口162排出船外，浆液中碱性物质和酸发生酸碱中和反应脱硫除硝是放热反应，降低循环浆液温度，能够更加有效的脱硫除硝。When the slurry circulation pump 19 works, open the heat exchanger 16, the second seawater pump 17, and the second filter 18; the slurry enters the heat exchanger 16 through the heat exchanger slurry inlet 163, and passes through the heat exchange The slurry outlet 162 of the device flows out, and the seawater pumped by the second seawater pump 17 enters the heat exchanger 16 through the seawater inlet 161 of the heat exchanger, and is cooled after exchanging heat with seawater, and then passes through the seawater outlet 162 of the heat exchanger Discharged overboard, the alkaline substance and acid in the slurry undergo an acid-base neutralization reaction. Desulfurization and denitrification is an exothermic reaction. Lowering the temperature of the circulating slurry can achieve more effective desulfurization and denitrification.
根据上述说明书的揭示和教导，本发明所属领域的技术人员还可以对上述实施方式进行变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。According to the disclosure and teaching of the above-mentioned specification, those skilled in the art to which the present invention belongs can also make changes and modifications to the above-mentioned embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006715.8A CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006715.8A CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107583429A true CN107583429A (en) | 2018-01-16 |
Family
ID=61044558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711006715.8A Pending CN107583429A (en) | 2017-10-25 | 2017-10-25 | A kind of ship flue gas desulfurization removes nitre device and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107583429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261905A (en) * | 2018-04-08 | 2018-07-10 | 北京美斯顿科技开发有限公司 | A kind of denitration integrated device and method |
| CN108704478A (en) * | 2018-05-25 | 2018-10-26 | 哈尔滨工程大学 | Sodium alkali ship tail gas denitration integrated device and method |
| CN109316918A (en) * | 2018-11-02 | 2019-02-12 | 大连汉诺工程技术有限公司 | A kind of ship tail gas desulphurization denitration dedusting subtracts carbon technique and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204502693U (en) * | 2015-03-11 | 2015-07-29 | 高境 | The collaborative system removing dust and condensable particle in flue gas |
| CN105126575A (en) * | 2015-07-28 | 2015-12-09 | 青岛京润石化工程有限公司 | Desulphurization, dedusting and demisting method for flue gas |
| CN207546187U (en) * | 2017-10-25 | 2018-06-29 | 广东佳德环保科技有限公司 | A kind of ship flue gas desulfurization removes nitre device |
-
2017
- 2017-10-25 CN CN201711006715.8A patent/CN107583429A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204502693U (en) * | 2015-03-11 | 2015-07-29 | 高境 | The collaborative system removing dust and condensable particle in flue gas |
| CN105126575A (en) * | 2015-07-28 | 2015-12-09 | 青岛京润石化工程有限公司 | Desulphurization, dedusting and demisting method for flue gas |
| CN207546187U (en) * | 2017-10-25 | 2018-06-29 | 广东佳德环保科技有限公司 | A kind of ship flue gas desulfurization removes nitre device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108261905A (en) * | 2018-04-08 | 2018-07-10 | 北京美斯顿科技开发有限公司 | A kind of denitration integrated device and method |
| CN108704478A (en) * | 2018-05-25 | 2018-10-26 | 哈尔滨工程大学 | Sodium alkali ship tail gas denitration integrated device and method |
| CN109316918A (en) * | 2018-11-02 | 2019-02-12 | 大连汉诺工程技术有限公司 | A kind of ship tail gas desulphurization denitration dedusting subtracts carbon technique and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106984161B (en) | A comprehensive treatment method and device for ship exhaust gas pollutants and ballast water | |
| CN108704478A (en) | Sodium alkali ship tail gas denitration integrated device and method | |
| CN105854547B (en) | Ammonia process oxidation and denitration technique and reaction unit | |
| CN201815246U (en) | Integrated desulfurization and denitrification device for marine exhaust | |
| CN107008148B (en) | Comprehensive treatment method and system for ship tail gas pollutants | |
| CN108355475A (en) | A kind of ship single column two-region high-efficiency desulfurization denitrification apparatus | |
| CN105498490B (en) | A comprehensive treatment method and device for multi-pollutants of ship exhaust gas integrated with electrolysis of seawater and ultraviolet irradiation | |
| CN207546187U (en) | A kind of ship flue gas desulfurization removes nitre device | |
| CN202620999U (en) | Desulfurization and denitration integrated flue gas cleaning system | |
| CN203935765U (en) | A kind of flue gas purification system of integrated desulfurizing denitration | |
| CN108704466A (en) | A kind of ammonia process ship tail gas denitration integrated device and method | |
| CN115591392A (en) | Ship tail gas desulfurization, denitrification and decarburization integrated system and treatment method | |
| CN108970349A (en) | Boat diesel engine tail gas desulfurization denitrification integrated device and method | |
| CN104524935A (en) | Single-tower type double-circulation sprinkling composite absorption device and method | |
| CN102407068A (en) | For absorbing NOxAnd purifying the NO-containing acidic aqueous solution using the samexMethod for producing exhaust gas | |
| CN107583429A (en) | A kind of ship flue gas desulfurization removes nitre device and technique | |
| CN107875855B (en) | Comprehensive treatment method and device for exhaust gas pollutants of marine diesel engine | |
| CN107456856B (en) | An integrated removal device and method for desulfurization and denitrification of ship tail gas based on seawater method | |
| CN202179925U (en) | Integrated purification device of desulfurization and denitrification flue gas | |
| CN104056538A (en) | Flue gas purifying system and method with integration of desulfurization and denitrification | |
| CN110013765A (en) | An integrated device for desulfurization and denitrification of ship tail gas | |
| CN204247052U (en) | Single tower type double-cycle spray composite absorption device | |
| CN111408241B (en) | Boats and ships tail gas integration SOx/NOx control system | |
| CN210714814U (en) | Efficient purification system of marine engine exhaust based on seawater electrolysis and electrostatic spraying | |
| CN202315678U (en) | Acid tail gas absorption tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180116 |
|
| RJ01 | Rejection of invention patent application after publication |