EP3007800A1 - Appareil de prétraitement pour dépoussiéreur par voie humide - Google Patents

Appareil de prétraitement pour dépoussiéreur par voie humide

Info

Publication number
EP3007800A1
EP3007800A1 EP14759068.1A EP14759068A EP3007800A1 EP 3007800 A1 EP3007800 A1 EP 3007800A1 EP 14759068 A EP14759068 A EP 14759068A EP 3007800 A1 EP3007800 A1 EP 3007800A1
Authority
EP
European Patent Office
Prior art keywords
tube
treatment device
parts
nozzle
inlet
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.)
Withdrawn
Application number
EP14759068.1A
Other languages
German (de)
English (en)
Inventor
Wiegert Stefanus PANJER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ECOSCRUB SOLUTIONS BV
Original Assignee
ECOSCRUB SOLUTIONS BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ECOSCRUB SOLUTIONS BV filed Critical ECOSCRUB SOLUTIONS BV
Publication of EP3007800A1 publication Critical patent/EP3007800A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
    • 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
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/3073—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a deflector acting as a valve in co-operation with the outlet orifice

Definitions

  • the invention relates to a pre-treatment device for use in a wet scrubber for the purification of contaminated vapors, comprising a tube provided with an inlet for contaminated vapors and an outlet for pre-purified vapor, as well as seen in a cross- section in the middle of the tube near the inlet a nozzle for spraying a water-air mixture in the vapor stream.
  • Such a pre-treatment device is generally known.
  • a disadvantage of the known pre-treatment device is that the nozzle regular becomes clogged by dirt particles present in the spray mixture or loose lime particles.
  • An object of the invention is to provide a pre-treatment device of the type described in the preamble in which the polluted water-air mixture is discharged more fully than in the known pre-treatment apparatus.
  • the pre-treatment apparatus according to the invention is characterized in that the tube is arranged in an inclined position in which the inlet is at a higher level than the outlet, and that the tube an provided with a discharge opening for contaminated water, which opening is located close to the outlet in a lower side of the tube wall.
  • An embodiment of the pre-treatment device according to the invention is characterized in that the tube is arranged between 5 and 30 degrees relative to the horizontal plane. With this arrangement, the flow rates to the discharge opening are present in an optimum range. Further preferably, in the bottom of the tube wall a discharge channel is present that slopes down to the discharge opening steeper than the inner wall of the tube. By this a better drainage of polluted water is obtained.
  • a further embodiment of the pre-treatment device according to the invention is characterized in that the pre-treatment device further comprises at least one further duct which is arranged parallel to the said tube, wherein a main inlet splits into the inlets of the pipes. It has been found that splitting the stream of polluted inlet gases and distributing these over several tubes, in these tubes a more optimal ratio between the tube diameter, flow velocity of polluted gas and quantity and speed of injected water-air mixture can be achieved.
  • the nozzle comprises a nozzle head which comprises two parts between which a spray slit is formed, of which parts one first part has a shape of a spherical segment or partial sphere or a cone or truncated cone, and the other, second part has a conical shape congruent to the shape of the first part of which the dish surface is at a distance from the conical or spherical surface, wherein the second part is provided with one or more holes for the water-air mixture, and wherein the nozzle is provided with adjusting means for moving the parts toward one another and away from each other.
  • the second part is provided with a plurality holes which are evenly distributed over the dish surface.
  • the shapes of the parts are such that the spray slit decreases outwardly from the center.
  • the adjusting means comprise preferably a threaded rod and a nut present thereon, wherein the two parts are provided with a central through hole through which the threaded rod crosses, and the nut is present on one side of both parts and can move the first part to and from the second part.
  • Figure 1 is a scrubber system with a pre-treatment apparatus and a wet scrubber
  • Figure 2 shows the nozzle of the pre-treatment device in detail; and Figure 3 shows the nozzle in perspective.
  • a scrubber system 1 is equipped with a pre-treatment device 3 according to the invention.
  • This scrubber system has a wet scrubber 5 where contaminants are removed from vapor.
  • the polluted vapor is pre-cleaned before it enters the scrubber. This is done in the pre-treatment apparatus in which nozzles 7 are provided in which circulation fluid is nebulized with compressed air.
  • a part of the circulation fluid (approximately 20%) is entrained by the vapor to a scrubber column and will accumulate in a tank 9.
  • the remaining part (about 80%) is fed to a tank 11 through a return conduit.
  • pollution which condensates there may arise a floating layer of the pollution in the tank 11.
  • the circulation of the circulation fluid is maintained by a pump 13.
  • the tank 11 constitutes the water buffer for the circulation system. This water is cooled by a water cooler 15 to 1 degree Celsius in order to condense. As much as possible pollution is present in the vapor.
  • the pre-treatment device 3 has two tubes 17, which are arranged parallel to each other and are each provided with an inlet 19 for contaminated vapors and an outlet 21 for pre-purified vapor.
  • the two inlets are connected to a common main inlet.
  • the inlet is located near the nozzle 7 in the tube, which is present in the middle of the tube seen in cross-section. During operation this nozzle sprays a water-air mixture 23 in the vapor stream.
  • the diameter of the tubes is selected such that there is a proper ratio of the spray and the amount of vapor which is pressed through the tubes. This results in optimum contact between the vapor and the liquid circulation.
  • the tubes 17 are arranged in an inclined position whereby the inlet is at a higher level than the outlet.
  • Each tube is further provided with a discharge opening 25 for contaminated water, which is located close to the outlet in a lower side of the tube wall.
  • a discharge chute 27 is provided which slopes down towards the discharge opening.
  • the nozzle 7 is shown in detail.
  • the nozzle has a housing 29 which is formed by a pipe open at one end. This open end is closed off by a nozzle head 31 which has two parts between which a spray slit 33 is present.
  • a first one of these parts 31A has a shape of a spherical cap, and the other, second part 31B has a conical shape congruent thereto, of which conical shape the dish surface is present at a distance from the spherical surface.
  • the parts are formed such that the spray slit decreases outwardly from the center.
  • the second part is provided with a plurality of evenly over the dish surface distributed holes 35 for the air-water mixture.
  • the nozzle 7 is shown in perspective. Herein, the holes 35 in the dish surface are clearly visible.
  • the nozzle 7 is provided with adjusting means for moving the parts the towards each other and away from each other.
  • adjustment means are formed by a threaded rod 37 with a wing nut 39 thereon.
  • the threaded rod extends through a central through-hole 41 present in the two parts.
  • the wing nut is present on one side of the two parts and will move to or from the second part 3 IB upon rotation the first part 31A.
  • the distance between the parts preferably has to be regularly adjusted.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (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)
  • Gas Separation By Absorption (AREA)

Abstract

L'invention porte sur un appareil de préraitement pour la purification de vapeurs polluées, comprenant deux tubes (17), qui sont chacun dotés d'une entrée pour des vapeurs contaminées et d'une sortie pour les vapeurs pré-purifiées. Près de l'entrée, il y a une buse (7) qui, en service, pulvérise un mélange eau-air (23) dans le courant de vapeurs. La buse comprend une tête de buse (31) qui a deux parties entre lesquelles se trouve une fente de pulvérisation (33). L'une de ces parties (31A) a la forme d'un capuchon sphérique et l'autre partie (31B) a une forme conique conforme à la première, dont la surface plate est à une certaine distance de la surface sphérique. La seconde partie est dotée d'une pluralité de trous (35) répartis de façon égale sur la surface plate pour le mélange air-eau. La buse (7) est dotée d'un moyen d'ajustement pour le déplacement des parties l'une vers l'autre et l'une loin de l'autre. Ce moyen d'ajustement est formé par une tige filetée (37) sur laquelle se trouve un écrou à oreilles.
EP14759068.1A 2013-06-14 2014-06-16 Appareil de prétraitement pour dépoussiéreur par voie humide Withdrawn EP3007800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2010972A NL2010972C2 (nl) 2013-06-14 2013-06-14 Voorbehandelingsinrichting voor een natte gaswasser.
PCT/NL2014/050394 WO2014200353A1 (fr) 2013-06-14 2014-06-16 Appareil de prétraitement pour dépoussiéreur par voie humide

Publications (1)

Publication Number Publication Date
EP3007800A1 true EP3007800A1 (fr) 2016-04-20

Family

ID=51485818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14759068.1A Withdrawn EP3007800A1 (fr) 2013-06-14 2014-06-16 Appareil de prétraitement pour dépoussiéreur par voie humide

Country Status (3)

Country Link
EP (1) EP3007800A1 (fr)
NL (2) NL2010972C2 (fr)
WO (1) WO2014200353A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016068778A1 (fr) * 2014-10-29 2016-05-06 Climeon Ab Procédé de mise en contact d'une composition de gaz avec une composition liquide
DE102019111122A1 (de) * 2019-04-30 2020-11-05 Voith Patent Gmbh Injektordüse
CN113828432B (zh) * 2021-09-30 2022-09-16 宜宾海丰和锐有限公司 一种喷嘴结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE559914A (fr) * 1956-08-10
SU946615A1 (ru) * 1980-05-21 1982-07-30 Государственный Ордена Трудового Красного Знамени Проектный Институт "Ленинградский Промстройпроект" Форсунка дл распылени орошающей жидкости
FR2688708B1 (fr) * 1992-03-19 1994-06-03 Bellmann Michel Installation de depoussierage et de lavage de gaz.
JP3363548B2 (ja) * 1993-10-20 2003-01-08 マツダ株式会社 冷却槽の集塵装置
JP2000061237A (ja) * 1998-08-18 2000-02-29 Honda Lock Mfg Co Ltd 湿式集塵装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014200353A1 *

Also Published As

Publication number Publication date
NL2014051B1 (nl) 2016-08-31
NL2010972C2 (nl) 2014-12-31
NL2014051A (nl) 2015-01-21
WO2014200353A1 (fr) 2014-12-18

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