CN204485558U - A kind of demist cleaner realizing the minimum discharge of coal-burning power plant's wet desulphurization tail gas - Google Patents
A kind of demist cleaner realizing the minimum discharge of coal-burning power plant's wet desulphurization tail gas Download PDFInfo
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- CN204485558U CN204485558U CN201520015580.1U CN201520015580U CN204485558U CN 204485558 U CN204485558 U CN 204485558U CN 201520015580 U CN201520015580 U CN 201520015580U CN 204485558 U CN204485558 U CN 204485558U
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- 238000012856 packing Methods 0.000 claims abstract description 83
- 239000000945 filler Substances 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract 4
- 239000000835 fiber Substances 0.000 claims description 69
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 239000000428 dust Substances 0.000 claims description 31
- 238000006477 desulfuration reaction Methods 0.000 claims description 30
- 230000023556 desulfurization Effects 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229920000914 Metallic fiber Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- 239000003595 mist Substances 0.000 description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000012719 wet electrostatic precipitator Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 229910052755 nonmetal Inorganic materials 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003670 easy-to-clean Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012765 fibrous filler Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及一种尾气处理的技术领域，具体涉及一种分离效率及精度高、不易堵塞、便于清洗的实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备。The utility model relates to the technical field of tail gas treatment, in particular to a demist and dust removal device for realizing ultra-low emission of wet desulfurization tail gas in coal-fired power plants, which has high separation efficiency and precision, is not easy to be blocked, and is easy to clean.
背景技术Background technique
在湿法脱硫工艺中，目前脱硫装置一般设计时浆液含固量20％，脱硫装置除雾器出口烟气中液滴含量75mg/m3，相当于烟气中携带的石膏颗粒浓度为15mg/m3，这意味着净烟气中至少有15mg/m3的颗粒物是湿法脱硫装置增加的，是无法避免的，同时实际运行时，浆液固含量超过20％或者吸收塔内烟气流速偏高或者除雾器效果不好，都会造成携带液滴含量高于75mg/m3，此时烟气中石膏颗粒物浓度降达到20mg/m3甚至更高，这个浓度已经达到了GB13223-2011标准中重点地区的20mg/m3烟尘排放浓度限值，接近了GB13223-2011标准中一般地区的30mg/m3烟尘排放浓度限值。再考虑到脱硫装置入口烟气含尘浓度为40～60mg/Nm3，所以烟气经过湿法脱硫后很难满足新的环保标准要求。In the wet desulfurization process, the current desulfurization device is generally designed with a slurry solid content of 20%, and a liquid droplet content in the flue gas at the outlet of the demister of the desulfurization device is 75mg/m 3 , which is equivalent to the concentration of gypsum particles carried in the flue gas being 15mg/m3. m 3 , which means that at least 15mg/m 3 of particulate matter in the net flue gas is increased by the wet desulfurization device, which is unavoidable. High or poor demister effect will cause the carried liquid droplet content to be higher than 75mg/m 3 . At this time, the concentration of gypsum particles in the flue gas will drop to 20mg/m 3 or even higher. This concentration has reached the GB13223-2011 standard The 20mg/m 3 soot emission concentration limit in key areas is close to the 30mg/m 3 soot emission concentration limit in general areas in the GB13223-2011 standard. Considering that the dust concentration of the flue gas at the inlet of the desulfurization device is 40-60 mg/Nm 3 , it is difficult for the flue gas to meet the requirements of the new environmental protection standard after wet desulfurization.
目前，在湿法脱硫尾气除雾除尘应用中，主要采用湿式静电除尘器、平板式除雾器和屋脊式除雾器三种。At present, in the application of wet desulfurization tail gas demist and dust removal, there are mainly three types of wet electrostatic precipitators, flat plate demisters and roof demisters.
湿式静电除尘器：湿式静电除尘器主要由阳极系统(沉淀极)、阴极系统(电晕线)、高压直流供电电源组成，工作时利用高压静电装置对架设在湿式静电除尘器内的电晕线施加高压电，在阴、阳两级之间形成了高压静电场，在电场力的作用下，整个沉淀极管内都形成电晕区。当含尘、液滴、气溶胶、酸雾及其他污染物的烟气进入足以使气体电离的静电场时，产生大量的正负离子和电子并使尘、酸雾、液滴等荷电，荷电后的粒子在电场力的作用下向沉淀极移动并在沉淀极上沉积，在沉积过程中沉淀极管内壁形成含尘液膜，含尘液膜在重力作用下流到湿式静电除尘器下部的集液槽中，从而达到捕集烟气中尘、液滴、气溶胶、酸雾和其他污染物的目的。Wet electrostatic precipitator: Wet electrostatic precipitator is mainly composed of anode system (precipitation electrode), cathode system (corona wire), and high-voltage DC power supply. When high voltage is applied, a high-voltage electrostatic field is formed between the cathode and anode. Under the action of the electric field force, a corona area is formed in the entire precipitation tube. When the flue gas containing dust, liquid droplets, aerosol, acid mist and other pollutants enters the electrostatic field sufficient to ionize the gas, a large number of positive and negative ions and electrons are generated and the dust, acid mist, liquid droplets, etc. are charged. The charged particles move to the precipitation pole under the action of the electric field force and deposit on the precipitation pole. During the deposition process, the inner wall of the precipitation pole tube forms a dust-containing liquid film, and the dust-containing liquid film flows to the lower part of the wet electrostatic precipitator under the action of gravity. In the liquid collection tank, so as to achieve the purpose of capturing dust, liquid droplets, aerosols, acid mist and other pollutants in the flue gas.
平板式除雾器：除雾器模块采用水平结构形式的除雾器装置。平板式除雾器可安装吸收塔内，烟气为垂直流向，称为水平式板式除雾器或简称平板式除雾器；平板式除雾器也可垂直安装于吸收塔出口水平烟道上，称为垂直式板式除雾器或烟道式除雾器。一般采用双层梁支撑或固定。Flat-plate mist eliminator: The mist eliminator module adopts a horizontal structure of the mist eliminator device. The flat plate demister can be installed in the absorption tower, and the flue gas flows in a vertical direction. It is called a horizontal plate demister or simply a flat demister; It is called vertical plate mist eliminator or flue type mist eliminator. Generally, it is supported or fixed by double-layer beams.
屋脊式除雾器：除雾器模块采用屋脊结构形式的除雾器装置。按外形分为“人”字型、菱形和圆形。屋脊型除雾器的优点是烟气通过叶片法线的流速要小于塔内水平截面的平均流速，这样即使塔内烟气流速偏高，在通过除雾器时，由于流通面积增大而使得烟气流速减小。Roof type mist eliminator: The mist eliminator module adopts a mist eliminator device in the form of a roof structure. According to the shape, it can be divided into "human" font, rhombus and circle. The advantage of the roof type demister is that the flow velocity of the flue gas through the normal line of the blade is lower than the average flow velocity of the horizontal section in the tower, so that even if the flue gas flow velocity in the tower is high, when passing through the demister, due to the increase of the flow area The flue gas velocity is reduced.
平板式和屋脊式除雾器都采用叶片结构，此结构除雾效率低，分离精度低，固体颗粒容易在叶片上沉积，清洗过程中容易存在死角，安装拆解不方便困难，投资大。同时湿式静电除尘器应用条件较苛刻，结构较复杂，电量消耗大，对现有设备如进行改造，无法满足湿式静电除尘器空间需求。Both flat plate and roof demisters adopt blade structure, which has low demist efficiency and low separation accuracy, and solid particles are easy to deposit on the blades, and there are easy dead angles in the cleaning process, which is inconvenient and difficult to install and dismantle, and requires a large investment. At the same time, the application conditions of the wet electrostatic precipitator are relatively harsh, the structure is more complicated, and the power consumption is large. If the existing equipment is modified, it cannot meet the space requirements of the wet electrostatic precipitator.
实用新型内容Utility model content
针对上述问题，本实用新型的主要目的在于提供一种分离效率及精度高、不易堵塞、便于清洗的实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备。In view of the above problems, the main purpose of this utility model is to provide a demist and dust removal equipment with high separation efficiency and precision, not easy to block, and easy to clean to realize ultra-low emission of wet desulfurization tail gas in coal-fired power plants.
本实用新型是通过下述技术方案来解决上述技术问题的：一种实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备，所述设备包括：板式填料、纤维填料和用于喷淋板式填料和纤维填料的喷淋装置，喷淋装置的喷嘴对准板式填料和纤维填料。The utility model solves the above-mentioned technical problems through the following technical scheme: a demist and dust removal equipment for realizing ultra-low emission of wet desulfurization tail gas in a coal-fired power plant. The spraying device of the plate packing and the fiber packing, the nozzle of the spraying device is aimed at the plate packing and the fiber packing.
在本实用新型的具体实施例子中，喷淋装置包括冲洗管和喷嘴，板式填料固定安装在板式填料支撑架上，纤维填料固定安装在纤维填料支撑架上，板式填料支撑架和纤维填料支撑架均固定在除雾除尘设备的框架上。In a specific implementation example of the present utility model, the spraying device includes a flushing pipe and a nozzle, the plate packing is fixedly installed on the plate packing supporting frame, the fiber packing is fixedly installed on the fiber packing supporting frame, the plate packing supporting frame and the fiber packing supporting frame They are all fixed on the frame of the mist and dust removal equipment.
冲洗管包括一根中间粗冲洗管和两根两侧细冲洗管。The flushing pipes include a middle coarse flushing pipe and two thin flushing pipes on both sides.
板式填料支撑架和纤维填料支撑架之间安装有中间粗冲洗管，中间粗冲洗管对着板式填料支撑架和纤维填料支撑架的面上开有若干喷嘴。A middle coarse flushing pipe is installed between the support frame of the plate packing and the support frame of the fiber packing, and several nozzles are opened on the surface of the middle rough flushing pipe facing the support frame of the plate packing and the support frame of the fiber packing.
两根两侧细冲洗管分别位于板式填料支撑架和纤维填料支撑架两侧远离中间粗冲洗管的面上。The two fine flushing pipes on both sides are respectively located on the surfaces of the support frame of plate packing and the support frame of fiber packing away from the coarse flushing pipe in the middle.
框架上开有需要处理的尾气的进口通道和处理后的尾气的出口通道，需要处理的尾气先经过板式填料，再经过纤维填料。The frame is provided with an inlet channel for exhaust gas to be treated and an outlet channel for exhaust gas after treatment. The exhaust gas to be treated first passes through the plate packing and then through the fiber packing.
在本实用新型的具体实施例子中，所述板式填料的板组中各板片之间的间距范围为5～50mm。In a specific implementation example of the present utility model, the distance between the plates in the plate pack of the plate packing ranges from 5 mm to 50 mm.
在本实用新型的具体实施例子中，所述纤维填料为非金属纤维或金属纤维或二者混编纤维制成。In a specific implementation example of the present utility model, the fiber filler is made of non-metallic fibers or metal fibers or mixed fibers of the two.
在本实用新型的具体实施例子中，纤维填料采用的纤维丝的直径范围为1～1000微米。In a specific implementation example of the present invention, the fiber filaments used in the fiber filler have a diameter ranging from 1 to 1000 microns.
在本实用新型的具体实施例子中，纤维填料采用的填充密度为100～500kg/m3的纤维填料。In a specific implementation example of the present utility model, the fiber filler adopts a fiber filler with a packing density of 100-500 kg/m 3 .
本实用新型的积极进步效果在于：本实用新型提供的实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备具有以下优点：本实用新型结构简单，不易堵塞，便于清洗，分离精度高，耐腐蚀性能强，操作安全。The positive progress effect of the utility model is that: the demist and dust removal equipment provided by the utility model to realize the ultra-low emission of wet desulfurization tail gas in coal-fired power plants has the following advantages: the utility model has a simple structure, is not easy to be blocked, is easy to clean, and has high separation precision. Strong corrosion resistance and safe operation.
附图说明Description of drawings
图1为实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘微观原理图。Figure 1 is a schematic diagram of the microcosmic principle of fog and dust removal for realizing ultra-low emission of wet desulfurization tail gas in coal-fired power plants.
图2为实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备结构示意图。Figure 2 is a schematic diagram of the structure of the demist and dust removal equipment for realizing ultra-low emission of wet desulfurization tail gas in coal-fired power plants.
具体实施方式Detailed ways
下面结合附图给出本实用新型较佳实施例，以详细说明本实用新型的技术方案。The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.
图1为实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘微观原理图。如图1所示，本实用新型提供的实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备，该设备包括：板式填料1、纤维填料3和用于喷淋板式填料1和纤维填料3的喷淋装置，喷淋装置的喷嘴对准板式填料1和纤维填料3。Figure 1 is a schematic diagram of the microcosmic principle of fog and dust removal for realizing ultra-low emission of wet desulfurization tail gas in coal-fired power plants. As shown in Figure 1, the fog removal and dust removal equipment provided by the utility model to realize the ultra-low emission of wet desulfurization tail gas in coal-fired power plants includes: plate packing 1, fiber packing 3 and plate packing 1 and fiber packing for spraying 3, the nozzle of the spraying device is aimed at the plate packing 1 and the fiber packing 3.
湿法脱硫尾气在200Pa操作压力下，以70m3/h的流量首先通过由支撑架固定的板式填料(阶段A)，尾气中的较大雾滴(直径>10um)进入板式填料1后与板式填料1的板组表面发生碰撞吸附在板式填料1的板组上，吸附在板组上的雾滴不断增大(阶段B)，增大到一定程度后在重力作用下脱离板式填料段进入脱硫段(阶段C)。Under the operating pressure of 200Pa, the wet desulfurization tail gas first passes through the plate packing fixed by the support frame (stage A) at a flow rate of 70m 3 /h. The larger mist droplets (diameter>10um) in the tail gas enter the plate packing 1 and then combine The plate group surface of packing 1 collides and adsorbs on the plate group of plate packing 1, and the droplets adsorbed on the plate group continue to increase (stage B), and after increasing to a certain extent, they leave the plate packing section under the action of gravity and enter desulfurization segment (Phase C).
在板组填料段未被捕捉的微小雾滴(直径1～10um)进入由支撑架固定的纤维填料(阶段D)，因纤维比表面积大，微小雾滴因扩散作用，与纤维发生碰撞后吸附在纤维表面并不断增大(阶段E)，增大至一定程度后在重力作用下脱离纤维表面(阶段F)，在纤维填料的导流结构作用下脱离纤维填料进入脱硫段(图1中没有示意出)，除雾及除尘后的尾气符合超低排放标准。The tiny mist droplets (diameter 1-10um) that are not captured in the packing section of the plate group enter the fiber packing fixed by the support frame (stage D). Due to the large specific surface area of the fibers, the tiny mist droplets collide with the fibers due to diffusion and then adsorb It grows continuously on the surface of the fiber (stage E), and after increasing to a certain extent, it breaks away from the surface of the fiber under the action of gravity (stage F), and under the action of the diversion structure of the fiber filler, it breaks away from the fiber filler and enters the desulfurization section (not shown in Figure 1). Indicated), the exhaust after demisting and dedusting meets the ultra-low emission standard.
图2为实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘设备结构示意图。该设备中的喷淋装置包括冲洗管5和喷嘴6，板式填料1固定安装在板式填料支撑架2上，纤维填料3固定安装在纤维填料支撑架4上，板式填料支撑架2和纤维填料支撑架4均固定在除雾除尘设备的框架7上；冲洗管5包括一根中间粗冲洗管501和两根两侧细冲洗管502；板式填料支撑架2和纤维填料支撑架4之间安装有中间粗冲洗管501，中间粗冲洗管501对着板式填料支撑架2和纤维填料支撑架4的面上开有若干喷嘴6；两根两侧细冲洗管502分别位于板式填料支撑架2和纤维填料支撑架4两侧远离中间粗冲洗管501的面上；框架7上开有需要处理的尾气的进口通道701和处理后的尾气的出口通道702，需要处理的尾气先经过板式填料1，再经过纤维填料3。Figure 2 is a schematic diagram of the structure of the demist and dust removal equipment for realizing ultra-low emission of wet desulfurization tail gas in coal-fired power plants. The spraying device in the equipment includes a flushing pipe 5 and a nozzle 6, the plate packing 1 is fixedly installed on the plate packing support frame 2, the fiber packing 3 is fixedly installed on the fiber packing support frame 4, the plate packing support frame 2 and the fiber packing support The frame 4 is fixed on the frame 7 of the demisting and dedusting equipment; the flushing pipe 5 includes a middle coarse flushing pipe 501 and two fine flushing pipes 502 on both sides; The middle coarse flushing pipe 501 has a number of nozzles 6 facing the surface of the plate packing support frame 2 and the fiber packing support frame 4; two fine flushing pipes 502 on both sides are respectively located Both sides of the packing support frame 4 are far away from the surface of the middle rough flushing pipe 501; the frame 7 is provided with an inlet channel 701 for exhaust gas to be treated and an outlet channel 702 for exhaust gas after treatment. The exhaust gas to be treated first passes through the plate packing 1, and then Go through fiber filler 3.
板式填料1的板组中各板片之间的间距范围为5～50mm，根据尾气中雾滴及粉尘粒径大小优选板片间距。The distance between the plates in the plate group of the plate packing 1 ranges from 5 to 50 mm, and the distance between the plates is optimized according to the particle size of the mist and dust in the exhaust gas.
为防止尾气中夹带的石灰乳结晶在填料表面及内部结垢，需保证冲洗系统常开，冲洗水经冲洗管及喷嘴后，冲洗水呈扇形，分别从填料上下两个方向进行冲洗，将石灰乳随时带离填料，防止结垢。In order to prevent the milk of lime entrained in the tail gas from fouling on the surface and inside of the packing, it is necessary to ensure that the flushing system is always open. After the flushing water passes through the flushing pipe and nozzle, the flushing water is fan-shaped and flushes from the upper and lower directions of the packing respectively. The milk is taken away from the filler at any time to prevent scaling.
经处理后的尾气，尾气压降<35Pa，每小时收集的废酸体积为1.6L，去除量约22.85g/m3，尾气中1um以上液滴去除率99％。The pressure drop of the tail gas after treatment is <35Pa, the volume of waste acid collected per hour is 1.6L, the removal amount is about 22.85g/m 3 , and the removal rate of droplets above 1um in the tail gas is 99%.
纤维填料3为非金属纤维或金属纤维或二者混编纤维制成。纤维填料3采用的纤维丝的直径范围为1～1000微米，根据尾气中雾滴及粉尘粒径大小选择纤维丝经。纤维填料3采用的填充密度为100～500kg/m3的纤维填料，根据尾气中雾滴及粉尘含量选择填充密度。The fibrous filler 3 is made of non-metal fiber or metal fiber or both mixed fibers. The fiber filaments used in the fiber filler 3 have a diameter ranging from 1 to 1000 microns, and the fiber filaments are selected according to the size of the droplets and dust particles in the exhaust gas. The fiber filler 3 adopts a fiber filler with a packing density of 100-500kg/m 3 , and the packing density is selected according to the mist and dust content in the exhaust gas.
实现燃煤电厂湿法脱硫尾气超低排放的除雾除尘工艺包括以下步骤：The demist and dust removal process to achieve ultra-low emission of wet desulfurization tail gas in coal-fired power plants includes the following steps:
(1)、燃煤电厂湿法脱硫尾气首先通过板式填料段，尾气中的较大雾滴进入板式填料后与特殊板组表面发生碰撞吸附在特殊板组上，吸附在板组上的雾滴不断增大，增大到一定程度后在重力作用下流入脱硫段。(1) The wet desulfurization tail gas of coal-fired power plants first passes through the plate packing section, and the larger droplets in the tail gas enter the plate packing and then collide with the surface of the special plate pack to be adsorbed on the special plate pack, and the droplets adsorbed on the plate pack After increasing to a certain extent, it will flow into the desulfurization section under the action of gravity.
(2)、在板组填料段未被捕捉的微小雾滴进入纤维填料段，因纤维比表面积大，微小雾滴因扩散作用，与纤维发生碰撞后吸附在纤维表面并不断增大，增大至一定程度后在重力作用下脱离纤维表面，在纤维填料的导流结构作用下脱离纤维填料进入脱硫段，除雾及除尘后的尾气符合超低排放标准。(2) The tiny droplets that have not been captured in the packing section of the plate group enter the fiber packing section. Due to the large specific surface area of the fibers, the tiny droplets collide with the fibers due to diffusion, and then adsorb on the surface of the fibers and continue to increase. After reaching a certain level, it will detach from the fiber surface under the action of gravity, and under the action of the diversion structure of the fiber filler, it will detach from the fiber filler and enter the desulfurization section. The tail gas after demisting and dust removal meets the ultra-low emission standard.
(3)、为防止尾气中夹带的石灰乳结晶在填料表面及内部结垢，保证冲洗系统常开，分别从填料上下两个方向进行冲洗，将石灰乳随时带离填料，防止结垢。(3) In order to prevent the milk of lime entrained in the exhaust gas from scaling on the surface and inside of the filler, ensure that the flushing system is always open, and wash from the upper and lower directions of the filler respectively, so as to take the milk of lime away from the filler at any time to prevent scaling.
板式填料1中的板组材质可选用非金属及金属，优先选择非金属材质。The material of the plate group in plate packing 1 can be non-metal and metal, and non-metal material is preferred.
纤维填料采用非金属纤维、金属纤维和混编纤维制成，优选非金属纤维及混编纤维。The fiber filler is made of non-metal fibers, metal fibers and mixed fibers, preferably non-metal fibers and mixed fibers.
本实用新型中的冲洗系统采用连续冲洗操作方式，防止石灰乳在填料中结晶增长而堵塞填料。The flushing system in the utility model adopts a continuous flushing operation mode to prevent lime milk from crystallizing and growing in the packing to block the packing.
本实用新型中的冲洗系统同时对板式填料段和纤维填料段上下表面进行冲洗，以保证冲洗水能穿透填料，有效防止填料堵塞。The flushing system in the utility model flushes the upper and lower surfaces of the plate packing section and the fiber packing section at the same time, so as to ensure that the flushing water can penetrate the packing and effectively prevent the packing from clogging.
本实用新型中的除雾除尘工艺采用的设备，根据处理气量的大小，尾气中固含量及持液量，能保证尾气处理后，压降在20Pa～2000Pa之间。The equipment used in the demist and dust removal process in the utility model can ensure that the pressure drop of the tail gas after treatment is between 20Pa and 2000Pa according to the size of the treated gas, the solid content and the liquid holding capacity in the tail gas.
本实用新型中的除雾除尘工艺采用的设备，能保证尾气中1um以上液滴去除率大于99％。The equipment adopted in the demisting and dedusting process in the utility model can ensure that the removal rate of liquid droplets above 1um in the tail gas is greater than 99%.
本实用新型中的除雾除尘工艺采用的设备，能满足脱硫尾气超低排放新标准。The equipment used in the demist and dust removal process of the utility model can meet the new standard of ultra-low emission of desulfurization tail gas.
以上显示和描述了本实用新型的基本原理和主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内，本实用新型要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the claimed protection scope of the utility model is defined by the appended claims and their equivalents.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105664595A (en) * | 2016-01-11 | 2016-06-15 | 上海安赐环保科技股份有限公司 | Medium-small coal-fired boiler wet desulphurization tail gas reinforced defogging and dedusting device and process thereof |
| CN105688558A (en) * | 2016-03-04 | 2016-06-22 | 上海安赐环保科技股份有限公司 | Falling film washing system realizing ultralow emission of coal-fired power plant desulfurated tail gas and technology thereof |
| CN107051092A (en) * | 2017-06-12 | 2017-08-18 | 广州薪光合环保技术有限公司 | Waste gas treatment equipment |
| CN107376578A (en) * | 2017-06-29 | 2017-11-24 | 北京建筑大学 | The demister and method of a kind of flue tail gas |
| CN112169500A (en) * | 2020-10-20 | 2021-01-05 | 安徽世华化工有限公司 | Plasticizer apparatus for producing |
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| CN113209769A (en) * | 2021-05-31 | 2021-08-06 | 攀钢集团研究院有限公司 | Deep dedusting and demisting process for desulfurized flue gas in low-temperature flue gas ultralow emission treatment system |
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2015
- 2015-01-09 CN CN201520015580.1U patent/CN204485558U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105664595A (en) * | 2016-01-11 | 2016-06-15 | 上海安赐环保科技股份有限公司 | Medium-small coal-fired boiler wet desulphurization tail gas reinforced defogging and dedusting device and process thereof |
| CN105688558A (en) * | 2016-03-04 | 2016-06-22 | 上海安赐环保科技股份有限公司 | Falling film washing system realizing ultralow emission of coal-fired power plant desulfurated tail gas and technology thereof |
| CN105688558B (en) * | 2016-03-04 | 2017-10-27 | 上海安赐环保科技股份有限公司 | One kind realizes Desulphurization for Coal-fired Power Plant tail gas minimum discharge falling liquid film water wash system and its technique |
| CN107051092A (en) * | 2017-06-12 | 2017-08-18 | 广州薪光合环保技术有限公司 | Waste gas treatment equipment |
| CN107376578A (en) * | 2017-06-29 | 2017-11-24 | 北京建筑大学 | The demister and method of a kind of flue tail gas |
| CN112237812A (en) * | 2019-07-16 | 2021-01-19 | 昆岳互联环境技术(江苏)有限公司 | Device and method for improving liquid drop generation of emptying pipe of acid-alkali liquor tank |
| CN112169500A (en) * | 2020-10-20 | 2021-01-05 | 安徽世华化工有限公司 | Plasticizer apparatus for producing |
| CN113209769A (en) * | 2021-05-31 | 2021-08-06 | 攀钢集团研究院有限公司 | Deep dedusting and demisting process for desulfurized flue gas in low-temperature flue gas ultralow emission treatment system |
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Address after: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee before: SHANGHAI ANHORN MECHANICAL EQUIPMENT Co.,Ltd. |
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