WO2018076877A1 - 脱硫除尘烟气净化装置 - Google Patents

脱硫除尘烟气净化装置 Download PDF

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Publication number
WO2018076877A1
WO2018076877A1 PCT/CN2017/095799 CN2017095799W WO2018076877A1 WO 2018076877 A1 WO2018076877 A1 WO 2018076877A1 CN 2017095799 W CN2017095799 W CN 2017095799W WO 2018076877 A1 WO2018076877 A1 WO 2018076877A1
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Prior art keywords
desulfurization
flue gas
gas purification
dust removal
cylinder
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PCT/CN2017/095799
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English (en)
French (fr)
Inventor
赵云才
吴政民
吴明来
田鹏程
Original Assignee
北京中能诺泰节能环保技术有限责任公司
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Application filed by 北京中能诺泰节能环保技术有限责任公司 filed Critical 北京中能诺泰节能环保技术有限责任公司
Priority to EP17811175.3A priority Critical patent/EP3338874A4/en
Publication of WO2018076877A1 publication Critical patent/WO2018076877A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • 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
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
    • B01D2247/101—Means for removing the washing fluid dispersed in the gas or vapours using a cyclone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
    • B01D2247/108—Means for removing the washing fluid dispersed in the gas or vapours using vortex inducers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

Definitions

  • the present application relates to the field of desulfurization technology, and in particular to a desulfurization and dust removal flue gas purification device.
  • Desulfurization means that the sulfur element in the coal is fixed to a solid by a method such as a calcium base to prevent generation of SO2 during combustion.
  • the desulfurization method can be divided into wet, dry and semi-dry (semi-wet) methods according to the dry and wet state of the absorbent and the desulfurization product in the desulfurization process.
  • Wet desulfurization technology is to desulfurize and treat desulfurization products in a wet state by using a solution or slurry containing an absorbent. This method is widely used in boiler flue gas or industrial exhaust gas due to its advantages of fast desulfurization reaction, simple equipment, high desulfurization efficiency and the like. Pollution control.
  • Wet desulfurization technology often uses the flow of flue gas to remove particles and small droplets inside, but the smooth inner wall of the cylinder cannot fully collide with the fine dust in the flowing flue gas and the fine mist in the flue gas, thus causing The efficiency of desulfurization and dust removal is low.
  • the present application provides a desulfurization and dust removal flue gas purification device, which utilizes the collision between the inner wall of the chimney and the fine dust and fine mist in the flue gas to perform desulfurization and dust removal, thereby improving the desulfurization efficiency.
  • the present invention provides a desulfurization and dust removal flue gas purification device, a desulfurization and dust removal flue gas purification device, the desulfurization and dust removal flue gas purification device comprising a cylinder, and at least one separator disposed inside the cylinder, the separator being mounted on the cylinder In the cross section of the body, the inner surface of the cylinder is a rough surface.
  • the cylindrical body includes an inner cylinder body and an outer cylinder body, and the rough surface is an inner cylinder body of a mesh structure.
  • the separator is a cyclone.
  • the cyclone includes a center cylinder, a blade and a cover cylinder, one end of the blade is mounted on the center cylinder, and the other end is surrounded by a cover cylinder.
  • the center cylinder and the cylinder are concentrically disposed.
  • the blade has an inclination angle of 20 degrees to 80 degrees.
  • the desulfurization and dust removal flue gas purification device is at least two, and is disposed in series above and below.
  • a flushing pipe is provided between the top ends of the inner and outer cylinders.
  • the flushing pipe is an annular flushing pipe.
  • the upper end of the inner portion of the cylinder has a water retaining ring.
  • the desulfurization and dust removal flue gas purification device of the present application comprises a cylinder body and at least one separator disposed inside the cylinder body, the separator is mounted on a cross section of the cylinder body, the cylinder
  • the inner surface of the body is a rough surface. Therefore, since the inner surface of the cylinder is a rough surface, the present invention can more fully impact the cyclone formed by water droplets and particulate matter in the flue gas, and is convenient for making fine droplets, fine dust particles, aerosols and the like in the flue gas. The particles collide with each other to agglomerate into larger droplets, thereby improving the efficiency of desulfurization and dust removal.
  • FIG. 1 is a schematic structural view of a desulfurization and dust removal flue gas purification device of the present application
  • FIG. 2 is a schematic structural view of an inner cylinder body in the desulfurization and dust removal flue gas purification device of the present application
  • FIG 3 is a schematic view of a cyclone of a separator in the desulfurization and dust removal flue gas purification device of the present application.
  • the desulfurization and dust removal flue gas purification device of the present application comprises a cylinder body and at least one separator disposed inside the cylinder body, the separator is mounted on a cross section of the cylinder body, and the inner surface of the cylinder body is rough surface. Therefore, since the inner surface of the cylinder is a rough surface, the present invention can more fully impact the cyclone formed by water droplets and particulate matter in the flue gas, and is convenient for making fine droplets, fine dust particles, aerosols and the like in the flue gas. The particles collide with each other to agglomerate into larger droplets, thereby improving the efficiency of desulfurization and dust removal.
  • the present application provides a desulfurization and dust removal flue gas purification device, the desulfurization and dust removal flue gas purification device comprising a cylinder, and at least one separator 1.4 disposed inside the cylinder, the separator 1.4 being installed in the In the cross section of the cylinder, the inner surface of the cylinder is a rough surface.
  • the present invention can more fully impact the cyclone formed by water droplets and particulate matter in the flue gas, and is convenient for making fine droplets, fine dust particles, aerosols and the like in the flue gas.
  • the particles collide with each other to agglomerate into larger droplets, thereby improving the efficiency of desulfurization and dust removal.
  • the cylinder body includes an outer cylinder body 1.1 and an inner cylinder body 1.2, and the rough surface is an inner cylinder body 1.2 of a mesh structure.
  • inner cylindrical body 1.2 having a rough inner surface
  • the inner cylinder 1.2 of the water corrugated structure may also be employed in the present application.
  • the inner cylinder 1.2 of the water corrugated structure may also be employed in the present application.
  • the inner cylinder 1.2 of the mesh structure can sufficiently increase the roughness of the inner surface of the cylinder, and the inner cylinder 1.2 of the mesh structure is convenient to be installed and manufactured, and the efficiency of desulfurization and dust removal is improved, and the installation and fabrication are facilitated.
  • the separator 1.4 is a cyclone.
  • a separator is a machine that separates mixed substances into two or more different substances.
  • the separator in the desulfurization and dust removal flue gas purification device is preferably a cyclone.
  • the cyclone 1.4 includes a cyclone blade, a center cylinder and a cover cylinder, and a mounting leg. One end of the blade is mounted on the center cylinder, and one end of the blade is surrounded by a cover cylinder.
  • the center cylinder and the cylinder are concentrically disposed, and the inclination angle of the blades is 20 degrees to 80 degrees. Thereby, a better motion state is obtained during the diversion of the flue gas.
  • the desulfurization and dust removal flue gas purification device is at least two, and is disposed in series above and below.
  • a drop passage (not shown) of droplets and dust is provided between the outer cylinder 1.1 and the inner cylinder 1.2.
  • the outer cylinder 1.1 and the top end of the inner cylinder 1.2 have a punch Water pipe 1.7.
  • the flushing pipe 1.7 is an annular flushing pipe.
  • the upper end of the inner portion of the cylinder has a water retaining ring 1.6 to prevent water from going up the wall of the cylinder.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Cyclones (AREA)
  • Treating Waste Gases (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

一种脱硫除尘烟气净化装置，其特征在于，所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器（1.4），所述分离器（1.4）安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。所述装置利用筒体内壁与烟气中的微尘与细小雾滴发生的碰撞进行脱硫除尘，提高了脱硫效率。

Description

脱硫除尘烟气净化装置 技术领域
本申请涉及脱硫技术领域，尤其涉及脱硫除尘烟气净化装置。
背景技术
脱硫，是指将煤中的硫元素用钙基等方法固定成为固体防止燃烧时生成SO2。目前脱硫方法按吸收剂及脱硫产物在脱硫过程中的干湿状态可分为：湿法、干法和半干(半湿)法。湿法脱硫技术是用含有吸收剂的溶液或浆液在湿状态下脱硫和处理脱硫产物，该方法由于具有脱硫反应速度快、设备简单、脱硫效率高等优点而被广泛应用于锅炉烟气或工业尾气污染治理。
湿法脱硫技术往往利用烟气流动，脱除里面的颗粒物和小液滴，但是光滑的筒体内壁无法与流动的烟气中的微尘与烟气中的细小雾滴发生充分碰撞，从而造成脱硫除尘的效率低下。
因此，如何利用筒体内壁与烟气中的微尘与细小雾滴发生的碰撞进行脱硫除尘成为现有技术中亟需解决的技术问题。
发明内容
有鉴于此，本申请提供脱硫除尘烟气净化装置，其利用烟筒体内壁与烟气中的微尘与细小雾滴发生的碰撞进行脱硫除尘，提高了脱硫效率。
本申请提供脱硫除尘烟气净化装置，脱硫除尘烟气净化装置，所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器，所述分离器安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。
在本申请一具体实施例中，所述筒体包括内筒体和外筒体，所述粗糙表面为网状结构的内筒体。
在本申请一具体实施例中，所述分离器是气旋器。
在本申请一具体实施例中，所述气旋器包括中心筒、叶片和罩筒，所述叶片的一端安装在所述中心筒上，另一端有罩筒环绕封闭。
在本申请一具体实施例中，所述中心筒和所述筒体同心设置。
在本申请一具体实施例中，所述叶片的倾斜角度为20度至80度。
在本申请一具体实施例中，所述脱硫除尘烟气净化装置为至少两个，且上下串联设置。
在本申请一具体实施例中，所述内筒和外筒的顶端之间具有冲水管。
在本申请一具体实施例中，所述冲水管为环形冲水管。
在本申请一具体实施例中，所述筒体内部的上端具有挡水环。
由以上技术方案可见，本申请所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器，所述分离器安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。因此，本申请由于筒体的内表面为粗糙表面，其可以对烟气中水滴和颗粒物形成的气旋产生更加充分的撞击，便于使烟气中的细小液滴、细微粉尘颗粒、气溶胶等微小颗粒物互相碰撞团聚凝聚成较大液滴，从而提高脱硫除尘的效率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1是本申请脱硫除尘烟气净化装置结构示意图；
图2是本申请脱硫除尘烟气净化装置中内筒体的结构示意图；
图3是本申请脱硫除尘烟气净化装置中分离器的气旋器的示意图。
具体实施方式
本申请所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器，所述分离器安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。因此，本申请由于筒体的内表面为粗糙表面，其可以对烟气中水滴和颗粒物形成的气旋产生更加充分的撞击，便于使烟气中的细小液滴、细微粉尘颗粒、气溶胶等微小颗粒物互相碰撞团聚凝聚成较大液滴，从而提高脱硫除尘的效率。
当然，实施本申请的任一技术方案必不一定需要同时达到以上的所有优点。
为了使本领域的人员更好地理解本申请中的技术方案，下面将结合本申请 实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都应当属于本申请保护的范围。
下面结合本申请附图进一步说明本申请具体实现。
参见图1-图3，本申请提供脱硫除尘烟气净化装置，所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器1.4，所述分离器1.4安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。
因此，本申请由于筒体的内表面为粗糙表面，其可以对烟气中水滴和颗粒物形成的气旋产生更加充分的撞击，便于使烟气中的细小液滴、细微粉尘颗粒、气溶胶等微小颗粒物互相碰撞团聚凝聚成较大液滴，从而提高脱硫除尘的效率。
在本申请一具体实施例中，所述筒体包括外筒体1.1和内筒体1.2，所述粗糙表面为网状结构的内筒体1.2。
本申请也可以采取其他形式的内表面粗糙的内筒体1.2。比如，水波纹型结构的内筒体1.2。
网状结构的内筒体1.2可以充分增加筒体内表面的粗糙程度，且网状结构的内筒体1.2便于安装于制作，提高脱硫除尘效率的同时，便于安装与制作。
在本申请一具体实施例中，所述分离器1.4是气旋器。分离器是把混合的物质分离成两种或两种以上不同的物质的机器。在脱硫除尘烟气净化装置中的分离器优选为气旋器。
在本申请一具体实施例中，所述气旋器1.4包括气旋叶片、中心筒和罩筒，以及安装支腿，所述叶片的一端安装在所述中心筒上，一端有罩筒环绕封闭。
在本申请一具体实施例中，所述中心筒和所述筒体同心设置，所述叶片的倾斜角度为20度至80度。从而，保证烟气的导流过程中获得更佳的运动状态。
在本申请一具体实施例中，所述脱硫除尘烟气净化装置为至少两个，且上下串联设置。
在本申请一具体实施例中，所述外筒体1.1和内筒体1.2的之间具有液滴和粉尘的下落通道(图中未示出)。
在本申请一具体实施例中，所述外筒体1.1和内筒体1.2的顶端之间具有冲 水管1.7。具体地，所述冲水管1.7为环形冲水管。
在本申请一具体实施例中，所述筒体内部的上端具有挡水环1.6，防止水顺着筒壁向上。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (10)

  1. 脱硫除尘烟气净化装置，其特征在于，所述脱硫除尘烟气净化装置包括筒体，以及设置于筒体内部的至少一分离器，所述分离器安装于所述筒体的横截面上，所述筒体的内表面为粗糙表面。
  2. 根据权利要求1所述的脱硫除尘烟气净化装置，其特征在于，所述筒体包括内筒体和外筒体，所述粗糙表面为网状结构的内筒体。
  3. 根据权利要求1所述的脱硫除尘烟气净化装置，其特征在于，所述分离器是气旋器。
  4. 根据权利要求3所述的脱硫除尘烟气净化装置，其特征在于，所述气旋器包括中心筒和叶片，所述叶片的一端安装在所述中心筒上。
  5. 根据权利要求4所述的脱硫除尘烟气净化装置，其特征在于，所述中心筒和所述筒体同心设置。
  6. 根据权利要求5所述的脱硫除尘烟气净化装置，其特征在于，所述叶片的倾斜角度为20度至80度。
  7. 根据权利要求1所述的脱硫除尘烟气净化装置，其特征在于，所述脱硫除尘烟气净化装置为至少两个，且上下串联设置。
  8. 根据权利要求2所述的脱硫除尘烟气净化装置，其特征在于，所述内筒体和外筒体的顶端之间具有冲水管。
  9. 根据权利要求8所述的脱硫除尘烟气净化装置，其特征在于，所述冲水管为环形冲水管。
  10. 根据权利要求1所述的脱硫除尘烟气净化装置，其特征在于，所述筒体内部的上端具有挡水环。
PCT/CN2017/095799 2016-10-26 2017-08-03 脱硫除尘烟气净化装置 WO2018076877A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17811175.3A EP3338874A4 (en) 2016-10-26 2017-08-03 Desulfurization dust-removal fuel gas purification device

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Application Number Priority Date Filing Date Title
CN201621171502.1U CN206008254U (zh) 2016-10-26 2016-10-26 脱硫除尘烟气净化装置
CN201621171502.1 2016-10-26

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