CN205288078U - Flue gas thick liquid distributes again sprays desulfurization dust collector - Google Patents
Flue gas thick liquid distributes again sprays desulfurization dust collector Download PDFInfo
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- CN205288078U CN205288078U CN201620034787.8U CN201620034787U CN205288078U CN 205288078 U CN205288078 U CN 205288078U CN 201620034787 U CN201620034787 U CN 201620034787U CN 205288078 U CN205288078 U CN 205288078U
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Abstract
本实用新型属于烟气处理技术领域，目的是提供一种结构简单、降低成本、提高脱硫效率的烟气浆液再分布的喷淋脱硫除尘装置，包括吸收塔，吸收塔的底部设置浆液池，吸收塔侧壁的下部设置烟气进口，吸收塔内壁上安装多层喷淋管，喷淋管上均匀安装多个喷嘴，浆液池经循环泵与喷淋管连通，每层喷淋管的下方设置烟气浆液再分布器，烟气浆液再分布器包括固定在吸收塔内壁上的环形分布板。本实用新型烟气浆液再分布的喷淋脱硫除尘装置结构简单，成本低，能够有效的降低液气比，同时延长了烟气与浆液的接触时间，提高了脱硫效率，达到节能省电的作用，能广泛地适用于各种烟气中的污染物反应，较其它烟气脱硫装置更经济、环保、实用。
The utility model belongs to the technical field of flue gas treatment, and aims to provide a spray desulfurization and dust removal device for flue gas slurry redistribution with simple structure, reduced cost, and improved desulfurization efficiency. The lower part of the side wall of the tower is equipped with a flue gas inlet, and the inner wall of the absorption tower is equipped with multi-layer spray pipes, and multiple nozzles are evenly installed on the spray pipes. The flue gas slurry redistributor includes an annular distribution plate fixed on the inner wall of the absorption tower. The spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model has simple structure, low cost, can effectively reduce the liquid-gas ratio, prolong the contact time between the flue gas and the slurry, improve the desulfurization efficiency, and achieve the effect of energy saving and electricity saving , can be widely used in the reaction of pollutants in various flue gases, and is more economical, environmentally friendly and practical than other flue gas desulfurization devices.
Description
技术领域technical field
本实用新型属于烟气处理技术领域，特别是涉及一种烟气浆液再分布的喷淋脱硫除尘装置。The utility model belongs to the technical field of flue gas treatment, in particular to a spray desulfurization and dust removal device for redistribution of flue gas slurry.
背景技术Background technique
《火电厂大气污染物排放标准》(GB13223-2011)进一步加严了燃煤电厂大气污染物的排放限值，其中重点控制地区，要求烟尘排放限值20mg/m3。由于环境容量有限等原因，江苏省、浙江省、山西省、广州市等地已出台相关政策，要求燃煤电厂参考燃气轮机组污染物排放标准限值，即在基准氧含量6％条件下，烟尘、SO2、NOx排放浓度分别不高于5mg/m3、35mg/m3、50mg/m3。The "Emission Standards of Air Pollutants for Thermal Power Plants" (GB13223-2011) further tightened the emission limits of air pollutants for coal-fired power plants. Among them, the emission limits for smoke and dust in key control areas are required to be 20mg/m 3 . Due to the limited environmental capacity and other reasons, Jiangsu Province, Zhejiang Province, Shanxi Province, Guangzhou City and other places have issued relevant policies, requiring coal-fired power plants to refer to the gas turbine unit pollutant emission standard limits, that is, under the condition of a reference oxygen content of 6%, soot , SO 2 , NO x emission concentrations are not higher than 5mg/m 3 , 35mg/m 3 , and 50mg/m 3 respectively.
国家发改委、环境保护部和国家能源局三部委于2014年9月联合发布了《煤电节能减排升级与改造行动计划(2014～2020年)》，要求东部地区新建燃煤机组排放基本达到燃气轮机组污染物排放限值，即基准氧含量6％条件下，烟尘、SO2、NOx排放浓度分别不高于10mg/m3、35mg/m3、50mg/m3，对中部和西部地区也提出了要求。The National Development and Reform Commission, the Ministry of Environmental Protection and the National Energy Administration jointly issued the "Coal Power Energy Conservation and Emission Reduction Upgrading and Transformation Action Plan (2014-2020)" in September 2014, requiring that the emissions of newly built coal-fired units in the eastern region basically reach the level of gas turbines. Group pollutant emission limits, that is, under the condition of a reference oxygen content of 6%, the emission concentrations of soot, SO 2 , and NO x are not higher than 10mg/m 3 , 35mg/m 3 , and 50mg/m 3 respectively, and the central and western regions are also made a request.
2013年以来，国内已有多套燃煤电厂烟气“超低排放”机组投运，为燃煤电厂污染物控制提供了重要参考。有理由相信，“超低排放”技术的广泛应用将进一步提高我国以煤炭为主的能源结构的清洁化水平，同时也为煤电绿色发展提供一种新方向。Since 2013, several coal-fired power plant flue gas "ultra-low emission" units have been put into operation in China, providing an important reference for the control of pollutants in coal-fired power plants. There is reason to believe that the widespread application of "ultra-low emission" technology will further improve the cleanliness of my country's coal-based energy structure, and at the same time provide a new direction for the green development of coal power.
目前脱硫塔基本都是空塔脱硫，烟气与浆液接触时间短，效率低，效果差。随着环保政策力度的加大，原有喷淋空塔的结构不能满足日益严格的环保要求。CN202803107公开了一种脱硫塔，包括除雾室、涡流室、涡流气液层、涡流发生器等，待处理烟气从脱硫塔下部进入，经集能室集能后，以一定速度通过脱硫塔的核心部件涡流发生器与下落的吸收液相互碰撞，形成涡流气液层，使烟气和液体充分接触，充分反应，从而提高了脱硫效率，但其采用涡流发生器，结构复杂，成本高。At present, the desulfurization tower is basically empty tower desulfurization, the contact time between flue gas and slurry is short, the efficiency is low, and the effect is poor. With the strengthening of environmental protection policies, the structure of the original spray empty tower cannot meet the increasingly stringent environmental protection requirements. CN202803107 discloses a desulfurization tower, including a demisting chamber, a vortex chamber, a vortex gas-liquid layer, a vortex generator, etc. The flue gas to be treated enters from the lower part of the desulfurization tower, collects energy in the energy collection chamber, and passes through the desulfurization tower at a certain speed The core component of the vortex generator collides with the falling absorption liquid to form a vortex gas-liquid layer, which makes the flue gas and liquid fully contact and fully react, thereby improving the desulfurization efficiency. However, the vortex generator is used, which has a complex structure and high cost.
实用新型内容Utility model content
本实用新型要解决的技术问题是提供一种结构简单、降低成本、提高脱硫效率的烟气浆液再分布的喷淋脱硫除尘装置。The technical problem to be solved by the utility model is to provide a spray desulfurization and dust removal device for redistribution of flue gas slurry with simple structure, low cost and high desulfurization efficiency.
为解决上述技术问题，本实用新型采用如下技术方案：In order to solve the above technical problems, the utility model adopts the following technical solutions:
一种烟气浆液再分布的喷淋脱硫除尘装置，包括吸收塔，所述吸收塔的底部设置浆液池，吸收塔侧壁的下部设置烟气进口，吸收塔内壁上安装多层喷淋管，喷淋管上均匀安装多个喷嘴，浆液池经循环泵与喷淋管连通，每层喷淋管的下方设置烟气浆液再分布器，烟气浆液再分布器包括固定在吸收塔内壁上的环形分布板，吸收塔的顶部设置烟气出口。A spray desulfurization and dust removal device for flue gas slurry redistribution, comprising an absorption tower, a slurry pool is arranged at the bottom of the absorption tower, a flue gas inlet is arranged at the lower part of the side wall of the absorption tower, and multi-layer spray pipes are installed on the inner wall of the absorption tower, Multiple nozzles are evenly installed on the spray pipe, the slurry pool is connected with the spray pipe through the circulating pump, and a flue gas slurry redistributor is installed under each layer of spray pipe, and the flue gas slurry redistributor includes Annular distribution plate, flue gas outlet is set on the top of the absorption tower.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置，进一步的，所述环形分布板设置为锥形，锥角a为120～135°。The spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model, further, the annular distribution plate is set in a cone shape, and the cone angle a is 120-135°.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置，进一步的，所述环形分布板的自由端设置为锯齿状。The spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model, further, the free end of the annular distribution plate is set in a sawtooth shape.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置，进一步的，所述吸收塔内壁上在每块环形分布板的下方每隔10～15°水平固定一块支撑板，支撑板的另一端与环形分布板的底部固定。The spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model, further, on the inner wall of the absorption tower, a support plate is horizontally fixed every 10-15° below each annular distribution plate, and the other end of the support plate is connected to the The bottom of the annular distribution plate is fixed.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置，进一步的，所述环形分布板与支撑板分别采用耐腐蚀合金材料制成。The spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model, further, the annular distribution plate and the support plate are respectively made of corrosion-resistant alloy materials.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置，进一步的，所述喷淋管设置3-5层。The spray desulfurization and dust removal device for the redistribution of the flue gas slurry of the utility model, further, the spray pipes are provided with 3-5 layers.
本实用新型烟气浆液再分布的喷淋脱硫除尘装置与现有技术相比，具有以下有益效果：在每层喷淋管的下方设置烟气浆液再分布器，在烟气浆液再分布器的作用下，烟气由下至上经历了扩张、收缩、扩张、收缩等几次过程，进一步提高了有效面积内烟气与浆液的均匀分布，能够有效的降低液气比，同时延长了烟气与浆液的接触时间，提高了脱硫效率，达到节能省电的作用。烟气浆液再分布器采用环形分布板形式，结构简单，成本低，没有大面积阻碍烟气流通，同时减少了浆液对吸收塔内壁的磨损与腐蚀，延长了脱硫塔的使用寿命，能广泛地适用于各种烟气中的污染物反应，较其它烟气脱硫装置更经济、环保、实用。Compared with the prior art, the spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model has the following beneficial effects: a flue gas slurry redistributor is arranged under each layer of spray pipes, and a flue gas slurry redistributor Under the action, the flue gas has experienced several processes such as expansion, contraction, expansion, and contraction from bottom to top, which further improves the uniform distribution of flue gas and slurry in the effective area, can effectively reduce the liquid-gas ratio, and prolong the flue gas and slurry at the same time. The contact time of the slurry improves the desulfurization efficiency and achieves the effect of saving energy and electricity. The flue gas slurry redistributor adopts the form of an annular distribution plate, which has a simple structure, low cost, no large area to hinder the flow of flue gas, and at the same time reduces the wear and corrosion of the slurry on the inner wall of the absorption tower, prolongs the service life of the desulfurization tower, and can widely It is suitable for the reaction of pollutants in various flue gases, and is more economical, environmentally friendly and practical than other flue gas desulfurization devices.
下面结合附图对本实用新型的烟气浆液再分布的喷淋脱硫除尘装置作进一步说明。The spray desulfurization and dust removal device for flue gas slurry redistribution of the present invention will be further described in conjunction with the accompanying drawings.
附图说明Description of drawings
图1为本实用新型烟气浆液再分布的喷淋脱硫除尘装置的主视图。Fig. 1 is a front view of a spray desulfurization and dust removal device for flue gas slurry redistribution of the present invention.
具体实施方式detailed description
如图1所示，本实用新型烟气浆液再分布的喷淋脱硫除尘装置包括吸收塔4，吸收塔4的底部设置浆液池1，吸收塔4侧壁的下部设置烟气进口2，吸收塔4内壁上安装多层喷淋管6，根据需要可设置3～5层，图中所示为4层，喷淋管6上均匀安装多个喷嘴61，浆液池1经循环泵7与喷淋管6连通。每层喷淋管6的下方设置烟气浆液再分布器3，烟气浆液再分布器3包括固定在吸收塔4内壁上的环形分布板31，环形分布板31设置为锥形，锥角a为120～135°，环形分布板31的自由端设置为锯齿状，保证再次收集的浆液能够均匀分配出去并形成液膜。吸收塔4内壁上在每块环形分布板31的下方每隔10～15°水平固定一块支撑板32，支撑板32的另一端与环形分布板31的底部固定。环形分布板31与支撑板32分别采用耐腐蚀合金材料制成，例如不锈钢材料，耐腐蚀耐磨损，无需维护检修。吸收塔4的顶部设置烟气出口5。As shown in Figure 1, the spray desulfurization and dust removal device for the redistribution of the flue gas slurry of the utility model includes an absorption tower 4, a slurry pool 1 is arranged at the bottom of the absorption tower 4, a flue gas inlet 2 is arranged at the bottom of the side wall of the absorption tower 4, and the absorption tower 4 Multi-layer spray pipes 6 are installed on the inner wall, and 3 to 5 layers can be set according to the needs. The figure shows 4 layers. Multiple nozzles 61 are evenly installed on the spray pipe 6. The slurry pool 1 is sprayed with the circulation pump 7 Tube 6 communicates. The bottom of each spray pipe 6 is provided with a flue gas slurry redistributor 3, and the flue gas slurry redistributor 3 includes an annular distribution plate 31 fixed on the inner wall of the absorption tower 4, and the annular distribution plate 31 is configured as a cone with a cone angle a The angle is 120-135°, and the free end of the annular distribution plate 31 is set in a saw-tooth shape to ensure that the re-collected slurry can be evenly distributed and form a liquid film. On the inner wall of the absorption tower 4, a support plate 32 is horizontally fixed at intervals of 10-15° below each annular distribution plate 31, and the other end of the support plate 32 is fixed to the bottom of the annular distribution plate 31. The annular distribution plate 31 and the support plate 32 are respectively made of corrosion-resistant alloy materials, such as stainless steel, which are corrosion-resistant and wear-resistant, and require no maintenance. The top of the absorption tower 4 is provided with a flue gas outlet 5 .
本实用新型烟气浆液再分布的喷淋脱硫除尘装置的处理过程为：The treatment process of the spray desulfurization and dust removal device for flue gas slurry redistribution of the utility model is as follows:
锅炉产生的烟气，经过除尘器除尘后，由烟气进口2进入吸收塔4，烟气由下至上流动，同时循环泵7从浆液池1中抽取的碱性浆液通过喷嘴61喷射形成雾化浆液，与烟气进行接触反应，雾化浆液与烟气中的二氧化硫反应，达到去除二氧化硫的作用。同时由于喷嘴61喷射的浆液大部分散射到吸收塔4内壁上，由吸收塔4内壁收集的浆液被烟气浆液再分布器3搜集后再次分配出去，形成二次浆液膜，从而达到浆液与烟气二次接触的目的，同时由于设置了烟气浆液再分布器3，使得烟气遇到烟气浆液再分布器3时，进行流向变动，增加了烟气与浆液的接触面积，同时延长了烟气与浆液的接触时间，提高了脱硫效率，反应完成的烟气通过烟气出口5排放，达到更好的去除二氧化硫的效果。The flue gas produced by the boiler enters the absorption tower 4 from the flue gas inlet 2 after being dedusted by the dust collector. The flue gas flows from bottom to top, and at the same time, the alkaline slurry extracted from the slurry pool 1 by the circulating pump 7 is sprayed through the nozzle 61 to form atomization. The slurry reacts in contact with the flue gas, and the atomized slurry reacts with the sulfur dioxide in the flue gas to achieve the effect of removing sulfur dioxide. At the same time, because most of the slurry sprayed by the nozzle 61 is scattered on the inner wall of the absorption tower 4, the slurry collected by the inner wall of the absorption tower 4 is collected by the flue gas slurry redistributor 3 and distributed again to form a secondary slurry film, thereby achieving the separation between the slurry and the smoke. The purpose of the secondary contact of the gas, and because the flue gas slurry redistributor 3 is installed, the flow direction of the flue gas changes when it encounters the flue gas slurry redistributor 3, which increases the contact area between the flue gas and the slurry, and at the same time prolongs the The contact time between the flue gas and the slurry improves the desulfurization efficiency, and the flue gas after the reaction is discharged through the flue gas outlet 5 to achieve a better effect of removing sulfur dioxide.
以上所述的实施例仅仅是对本实用新型的优选实施方式进行描述，并非对本实用新型的范围进行限定，在不脱离本实用新型设计精神的前提下，本领域普通技术人员对本实用新型的技术方案作出的各种变形和改进，均应落入本实用新型权利要求书确定的保护范围内。The above-mentioned embodiments are only described to the preferred implementation of the utility model, and are not limited to the scope of the utility model. Various modifications and improvements made should fall within the scope of protection determined by the claims of the utility model.
Claims (6)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731518A (en) * | 2016-12-23 | 2017-05-31 | 青上化工（惠州）有限公司 | A kind of hydrochloric acid absorption tower |
| CN110585849A (en) * | 2019-09-24 | 2019-12-20 | 山东齐鲁化纺有限公司 | Waste gas collecting and treating process for efficient polyester staple fiber relaxation heat setting machine |
| CN110917863A (en) * | 2019-12-27 | 2020-03-27 | 浙江德创环保科技股份有限公司 | A sintering flue gas collaborative management system |
| CN113634097A (en) * | 2021-08-16 | 2021-11-12 | 德阳劲达节能科技有限责任公司 | Integrated dust removal desulfurization tower |
| CN113842760A (en) * | 2021-10-15 | 2021-12-28 | 四川德胜集团钒钛有限公司 | A sintering flue gas treatment system and method |
| WO2025166938A1 (en) * | 2024-02-07 | 2025-08-14 | 芙特碳汇(北京)科技有限公司 | Flue gas treatment device |
-
2016
- 2016-01-14 CN CN201620034787.8U patent/CN205288078U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731518A (en) * | 2016-12-23 | 2017-05-31 | 青上化工（惠州）有限公司 | A kind of hydrochloric acid absorption tower |
| CN110585849A (en) * | 2019-09-24 | 2019-12-20 | 山东齐鲁化纺有限公司 | Waste gas collecting and treating process for efficient polyester staple fiber relaxation heat setting machine |
| CN110917863A (en) * | 2019-12-27 | 2020-03-27 | 浙江德创环保科技股份有限公司 | A sintering flue gas collaborative management system |
| CN113634097A (en) * | 2021-08-16 | 2021-11-12 | 德阳劲达节能科技有限责任公司 | Integrated dust removal desulfurization tower |
| CN113842760A (en) * | 2021-10-15 | 2021-12-28 | 四川德胜集团钒钛有限公司 | A sintering flue gas treatment system and method |
| WO2025166938A1 (en) * | 2024-02-07 | 2025-08-14 | 芙特碳汇(北京)科技有限公司 | Flue gas treatment device |
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