WO2022257195A1 - 一种烟气湿法脱硫装置 - Google Patents

一种烟气湿法脱硫装置 Download PDF

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WO2022257195A1
WO2022257195A1 PCT/CN2021/102437 CN2021102437W WO2022257195A1 WO 2022257195 A1 WO2022257195 A1 WO 2022257195A1 CN 2021102437 W CN2021102437 W CN 2021102437W WO 2022257195 A1 WO2022257195 A1 WO 2022257195A1
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Prior art keywords
gas
gathering
flue gas
mounting hole
wet desulfurization
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PCT/CN2021/102437
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English (en)
French (fr)
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徐晓亮
张旭
王文选
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江苏峰业科技环保集团股份有限公司
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Publication of WO2022257195A1 publication Critical patent/WO2022257195A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/80—Semi-solid phase processes, i.e. by using slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the utility model belongs to the technical field of wet desulfurization, and in particular relates to a flue gas wet desulfurization device.
  • wet flue gas desulfurization has always occupied a dominant position.
  • wet desulfurization devices account for about 80%, and the form of spray desulfurization is the most common. , it is required that the gas-liquid phase contact area is large, the gas absorption reaction performance is good, the pressure loss is small, and it can adapt to the change of flue gas flow within a certain range.
  • the slurry of the spray device installed in the existing desulfurization device cannot fully contact and react with the gas, and the nozzle may be blocked by solid substances in the flue gas during long-term use, which will affect the subsequent desulfurization effect and lead to desulfurization efficiency. too low.
  • the utility model provides a flue gas wet desulfurization device, which can ensure that the slurry and the gas are fully contacted and reacted, and the nozzle will not be damaged by solid substances in the flue gas during long-term use. Blockage, higher desulfurization efficiency.
  • a flue gas wet desulfurization device including a desulfurization tower, the bottom of the desulfurization tower is provided with an air inlet pipe, and the top is provided with an air outlet pipe, and the air inlet pipe is fixedly connected
  • the gas-gathering mechanism includes a gas-gathering hood, the gas-gathering hood is fixed to the intake pipe through a bracket, the center of the gas-gathering hood is fixed with a gas-gathering ring, and the inside of the gas-gathering ring is jagged;
  • the desulfurization tower is connected with a spray pipe, and several spray heads are arranged under the spray pipe, and a crushing device is installed in the spray head.
  • gas gathering hood is in the shape of a truncated cone.
  • the center of the gas gathering ring is located directly above the center of the intake pipe.
  • the pulverizing device includes a base, the base is fixedly connected to the inner wall of the spray head, the base is provided with a fixed shaft, the fixed shaft is sleeved with a spiral impeller, and the center of the spiral impeller has a mounting hole , the installation hole is sleeved on the fixed shaft, countersunk holes are provided at both ends of the installation hole, bearings are arranged in the countersunk hole, and the bearings are located between the two ends of the installation hole and the fixed shaft, An end cover is connected to the top of the mounting hole.
  • the base and the fixed shaft are integrally formed.
  • the spray pipe is in a spiral shape, and the diameter of the spiral becomes smaller as it goes down.
  • the nozzle of the utility model is equipped with a crushing device to prevent impurities in the flue gas from entering the pipe of the nozzle and causing blockage.
  • Fig. 1 is a structural schematic top view of the utility model
  • Fig. 2 is a structural representation of the gas gathering mechanism in the utility model
  • Fig. 3 is the structural representation of spray pipe in the utility model
  • Fig. 4 is a schematic exploded view of the crushing device in the present invention.
  • a wet flue gas desulfurization device includes a desulfurization tower 1, and an air inlet pipe 2 is provided at the bottom of the desulfurization tower 1 , The top is provided with an air outlet pipeline 3, and the gas gathering mechanism 4 is fixedly connected to the air inlet pipeline 2, and the gas gathering mechanism 4 includes a gas gathering cover 41, and the gas gathering cover 41 is fixedly connected to the intake pipeline through a bracket 42 2.
  • a gas collecting ring 43 is fixedly connected to the center of the gas collecting cover 41, and the inner side of the gas collecting ring 43 is serrated;
  • the desulfurization tower 1 is connected with a spray pipe 5 , a number of spray heads 6 are arranged under the spray pipe 5 , and a pulverizing device 7 is installed in the spray head 6 .
  • gas gathering hood 41 is in the shape of a truncated cone.
  • center of the gas gathering ring 43 is located directly above the center of the intake pipe 2 .
  • the crushing device includes a base 71, the base 71 is fixed on the inner side wall of the nozzle 6, the base 71 is provided with a fixed shaft 72, and the fixed shaft 72 is sleeved with a helical impeller 73, the There is a mounting hole 74 in the center of the spiral impeller 73, and the mounting hole 74 is sleeved on the fixed shaft 72.
  • Counterbore holes are provided at both ends of the mounting hole 74, and a bearing 75 is arranged in the counterbore hole. The bearing 75 is located between the two ends of the mounting hole 73 and the fixed shaft 72 , and the top of the mounting hole 73 is connected with an end cover 76 .
  • base 71 and the fixed shaft 72 are integrally formed.
  • the spray pipe 5 is in a spiral shape, and the diameter of the spiral becomes smaller as it goes down.
  • the flue gas enters the desulfurization tower 1 from the intake pipe 2, because the gas gathering mechanism 4 is arranged above the intake pipe 2, and the gas gathering mechanism 4 includes a truncated conical gas gathering hood 41, and the gas gathering hood 41 is fixed by a bracket 42 In the intake pipe 2, a gas gathering ring 43 is fixedly connected to the center of the gas gathering cover 41.
  • the inner side of the gas gathering ring 43 is serrated, which enhances the turbulent flow during the rising process of the flue gas, greatly improves the gas-liquid phase contact effect, and accelerates The speed of desulfurization reaction and the efficiency of desulfurization reaction are improved, and the effect of desulfurization is enhanced.
  • the gas-gathering mechanism 4 can make the smoke flow rate near the center of the smoke discharge hole fast, and the setting of the spiral spray pipe 5 makes the sprayed liquid droplets be distributed so that the distance between the center of the spray layer and the inlet pipe is the shortest, so that the gas-liquid Full contact also improves the desulfurization efficiency.
  • a crushing device 7 is installed in the spray head 6 .
  • the crushing device includes a base 71, the base 71 is fixedly connected to the inner wall of the nozzle 6, the base 71 is provided with a fixed shaft 72, and the fixed shaft 72 is sleeved with a spiral impeller 73, and the center of the spiral impeller 73 has a mounting hole 74, and the mounting hole 74 Sleeved on the fixed shaft 72, the two ends of the mounting hole 74 are provided with a countersunk hole, and a bearing 75 is arranged in the countersunk hole, which is beneficial to the installation and fixing of the bearing and improves its installation accuracy.
  • the bearing 75 is located between the two ends of the mounting hole 73 and the fixed shaft 72 , and the top of the mounting hole 73 is connected with an end cover 76 .
  • the water flow drives the spiral impeller 73 to rotate in the nozzle 6 to prevent impurities in the flue gas from entering the nozzle pipe and causing blockage.

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

Abstract

一种烟气湿法脱硫装置，包括脱硫塔(1)，所述脱硫塔(1)底部设有进气管道(2)、顶部设有出气管道(3)，所述进气管道(2)上固接有聚气机构(4)，所述聚气机构(4)包括聚气罩(41)，所述聚气罩(41)通过支架(42)固接于进气管道(2)，所述聚气罩(41)的中心固接有聚气环(43)，所述聚气环(43)内侧为锯齿状；所述脱硫塔(1)上连通有喷淋管(5)，所述喷淋管(5)的下方设置有若干喷头(6)，所述喷头(6)内安装有粉碎装置(7)。烟气湿法脱硫装置可以保证浆液与气体充分接触反应，而且喷头(6)在长期使用的过程中，不会被烟气中的固体物质堵塞，脱硫的效率更高。

Description

一种烟气湿法脱硫装置 技术领域
本实用新型属于湿法脱硫技术领域，具体地说，尤其涉及一种烟气湿法脱硫装置。
背景技术
在众多的烟气湿法脱硫技术中，湿法烟气脱硫一直占据着主导地位，目前在世界上已建成的脱硫装置中，湿法脱硫装置约占80％，而喷淋脱硫的形式最为常见，要求气液相接触面积大，气体的吸收反应性能良好，压力损失小并且能适应一定范围内的烟气流量的变化。
而现有的脱硫装置中设置的喷淋装置浆液无法与气体充分接触反应，而且喷头在长期使用的过程中，可能会被烟气中的固体物质堵塞，影响后续的脱硫效果，导致脱硫的效率过低。
实用新型内容
针对现有技术存在的不足，本实用新型提供用于一种烟气湿法脱硫装置，可以保证浆液与气体充分接触反应，而且喷头在长期使用的过程中，不会被烟气中的固体物质堵塞，脱硫的效率更高。
本实用新型的目的可以通过以下技术方案实现：一种烟气湿法脱硫装置，包括脱硫塔，所述脱硫塔底部设有进气管道、顶部设有出气管道，所述进气管道上固接有聚气机构，所述聚气机构包括聚气罩，所述聚气罩通过支架固接于 进气管道，所述聚气罩的中心固接有聚气环，所述聚气环内侧为锯齿状；
所述脱硫塔上连通有喷淋管，所述喷淋管的下方设置有若干喷头，所述喷头内安装有粉碎装置。
进一步的，所述聚气罩为圆锥台型。
进一步的，所述聚气环的中心位于进气管道中心的正上方。
进一步的，所述粉碎装置包括底座，所述底座固接于喷头的内侧壁，所述底座上设有固定轴，所述固定轴上套接有螺旋叶轮，所述螺旋叶轮中心开有安装孔，所述安装孔套接在固定轴上，所述安装孔的两端设有沉头孔，所述沉头孔内设有轴承，所述轴承位于安装孔的两端与固定轴之间，所述安装孔的顶部连接有端盖。
进一步的，所述底座和固定轴为一体成型。
进一步的，所述喷淋管呈螺旋形，且螺旋直径越往下越小。
本实用新型的有益效果：
1、本实用新型进气管道上方设有聚气机构，增强烟气上升过程中的湍流程度，大大的改善了气液相接触效果，加快脱硫反应的速度和提升脱硫反应的效率，增强脱硫的效果。
2、本实用新型的喷头中设有粉碎装置，防止烟气中的杂质进入喷头管道中造成堵塞。
附图说明
为了便于本领域技术人员理解，下面结合附图对本实用新型作进一步的说明。
图1是本实用新型的结构示意俯视图；
图2是本实用新型中聚气机构的结构示意图；
图3是本实用新型中喷淋管的结构示意图；
图4是本实用新型中粉碎装置的爆炸示意图。
图中：1、脱硫塔；2、进气管道；3、出气管道；
4、聚气机构；41、聚气罩；42、支架；43、聚气环；
5、喷淋管；6、喷头；
7、粉碎装置；71、底座；72、固定轴；73、螺旋叶轮；74、安装孔；75、轴承；76、端盖。
具体实施方式
下面结合附图对本实用新型进一步说明：如说明书附图中的图1至图3所示，一种烟气湿法脱硫装置，包括脱硫塔1，所述脱硫塔1底部设有进气管道2、顶部设有出气管道3，所述进气管道2上固接有聚气机构4，所述聚气机构4包括聚气罩41，所述聚气罩41通过支架42固接于进气管道2，所述聚气罩41的中心固接有聚气环43，所述聚气环43内侧为锯齿状；
所述脱硫塔1上连通有喷淋管5，所述喷淋管5的下方设置有若干喷头6，所述喷头6内安装有粉碎装置7。
进一步的，所述聚气罩41为圆锥台型。
进一步的，所述聚气环43的中心位于进气管道2中心的正上方。
进一步的，所述粉碎装置包括底座71，所述底座71固接于喷头6的内侧壁，所述底座71上设有固定轴72，所述固定轴72上套接有螺旋叶轮73，所述螺旋叶轮73中心开有安装孔74，所述安装孔74套接在固定轴72上，所述安装孔74的两端设有沉头孔，所述沉头孔内设有轴承75，所述轴承75位于安装孔73的两端与固定轴72之间，所述安装孔73的顶部连接有端盖76。
进一步的，所述底座71和固定轴72为一体成型。
进一步的，所述喷淋管5呈螺旋形，且螺旋直径越往下越小。
使用原理：
烟气从进气管道2中进入脱硫塔1内，因为进气管道2的上方设置有聚气机构4，聚气机构4包括圆锥台型聚气罩41，聚气罩41通过支架42固接于进气管道2，聚气罩41的中心固接有聚气环43，聚气环43内侧为锯齿状，增强烟气上升过程中的湍流程度，大大的改善了气液相接触效果，加快脱硫反应的速度和提升脱硫反应的效率，增强脱硫的效果。
同时聚气机构4可以使得靠近烟气排出孔中心的烟气流速快，螺旋形喷淋管5的设置使得喷出的液滴分布为喷淋层中心距离入口管道的距离最短，从而使得气液充分接触，同样提高了脱硫效率。
喷头6内安装有粉碎装置7。粉碎装置包括底座71，底座71固接于喷头6的内侧壁，底座71上设有固定轴72，固定轴72上套接有螺旋叶轮73，螺旋叶轮73中心开有安装孔74，安装孔74套接在固定轴72上，安装孔74的两端设有沉头孔，沉头孔内设有轴承75，利于轴承安装固定，提高其安装精度。轴承75位于安装孔73的两端与固定轴72之间，安装孔73的顶部连接有端盖76。水流带动螺旋叶轮73在喷头6内作旋转运动，防止烟气中的杂质进入喷头管道中造成堵塞。
以上内容仅仅是对本实用新型结构所作的举例和说明，所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离实用新型的结构或者超越本权利要求书所定义的范围，均应属于本实用新型的保护范围。

Claims (6)

  1. 一种烟气湿法脱硫装置，包括脱硫塔，其特征在于：所述脱硫塔底部设有进气管道、顶部设有出气管道，所述进气管道上固接有聚气机构，所述聚气机构包括聚气罩，所述聚气罩通过支架固接于进气管道，所述聚气罩的中心固接有聚气环，所述聚气环内侧为锯齿状；
    所述脱硫塔上连通有喷淋管，所述喷淋管的下方设置有若干喷头，所述喷头内安装有粉碎装置。
  2. 根据权利要求1所述的一种烟气湿法脱硫装置，其特征在于：所述聚气罩为圆锥台型。
  3. 根据权利要求1所述的一种烟气湿法脱硫装置，其特征在于：所述聚气环的中心位于进气管道中心的正上方。
  4. 根据权利要求1所述的一种烟气湿法脱硫装置，其特征在于：所述粉碎装置包括底座，所述底座固接于喷头的内侧壁，所述底座上设有固定轴，所述固定轴上套接有螺旋叶轮，所述螺旋叶轮中心开有安装孔，所述安装孔套接在固定轴上，所述安装孔的两端设有沉头孔，所述沉头孔内设有轴承，所述轴承位于安装孔的两端与固定轴之间，所述安装孔的顶部连接有端盖。
  5. 根据权利要求4所述的一种烟气湿法脱硫装置，其特征在于：所述底座和固定轴为一体成型。
  6. 根据权利要求1所述的一种烟气湿法脱硫装置，其特征在于：所述喷淋管呈螺旋形，且螺旋直径越往下越小。
PCT/CN2021/102437 2021-06-08 2021-06-25 一种烟气湿法脱硫装置 WO2022257195A1 (zh)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN116850763A (zh) * 2023-08-30 2023-10-10 济宁市嘉祥生态环境监控中心 一种高效火电烟气脱硫净化处理装置
CN118105834A (zh) * 2024-04-29 2024-05-31 达拉特旗德信祥硅业有限公司 一种烟气吸附流化床脱硫反应装置
CN118599577A (zh) * 2024-08-08 2024-09-06 江苏沙钢钢铁有限公司 一种煤气除氨反应塔

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