US3406499A - Apparatus for the wet treatment of dust-laden gases - Google Patents

Apparatus for the wet treatment of dust-laden gases Download PDF

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Publication number
US3406499A
US3406499A US572508A US57250866A US3406499A US 3406499 A US3406499 A US 3406499A US 572508 A US572508 A US 572508A US 57250866 A US57250866 A US 57250866A US 3406499 A US3406499 A US 3406499A
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US
United States
Prior art keywords
gas
outlet
dust
chamber
wet treatment
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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.)
Expired - Lifetime
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US572508A
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English (en)
Inventor
Wiemer Jean
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.)
GEA Group AG
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Metallgesellschaft AG
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Publication date
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/54—Venturi scrubbers

Definitions

  • This invention relates to apparatus for the wet treatment of dust-laden gases, and is concerned with an improvement in or modification of the apparatus described and claimed in U.S. Patent 3,343,341, hereinafter referred to as the parent patent application.
  • the apparatus comprises a cylindrical or polygonal chamber fitted With sets of nozzles along the wall or walls thereof for spraying liquid into the gases flowing therethrough and leaving at its upper end an outlet channel extending outwardly from the axis of the cylindrical or polygonal chamber and wherein the cross-section of the outlet channel diverges in the intended direction of fiow of the gases.
  • the outlet channel is defined by an annular part extending around the upper end of the chamber and by a circular or polygonal plate or body which is situated above or below it, and which has a lower face which is substantially frusto-conical in axial section.
  • the plate or body can be raised or lowered to vary the crosssection of the outlet channel. Additional nozzles disposed on or below the plate effect an improved and more uniform moistening of the gas to be cleaned.
  • the outlet of this wet processing apparatus has the same effect as a definite number of venturi tubes let into the circumference of the outlet pipe, with a throat crosssection which can be adjusted at any particular time in relation to the quantity of gas which is to be passed through.
  • the present invention provides a simplification of the apparatus described in the patent which eliminates or minimises the disadvantages referred to and further improves the efficiency by additional sprinkling, as well as' incidentally economising in materials and power.
  • the apparatus comprises a cylindrical or polygonal chamber fitted with sets of nozzles along the wall or walls thereof for spraying liquid into the gases which can enter at one end of the chamber and flow therethrough, an outlet channel at the other end of the chamber extending outwardly from the axis of the chamber and having a cross-section which diverges in the intended direction of flow of the gases, and a round or polygonal pan disposed axially of the apparatus and adjacent said outlet channel and arranged so as to be movable thereby to vary the inlet cross-section to the diverging outlet channel.
  • the pan is used as a supplementary sprinkling device, the top portion of the wall of the diffuserlike outlet being utilized as the bottom of a liquid overflow device, the overflow aperture of which is constructed centrally as a gas conducting piece.
  • FIGURE 1 is a vertical section through a vertical apparatus for wet-treating dust-laden gases
  • FIGURE 2 is a vertical section through a horizontal form of the apparatus ⁇ shown in FIGURE 1, and
  • FIGURE 3 is a section along the line of IIIe-III of FIGURE 2.
  • the gas to be treated enters the apparatus for wet treatment through an inlet connecting piece 1 and passes into a cylindrical vessel comprising an upper wet-treatment c-hamber 2, and a lower spherical portion 3 forming a sump into which a discharge pipe for the clean gas projects.
  • the chamber 2 is provided with nozzles 5 over its periphery, which nozzles are supplied optionally with fresh or circulation water via a pipeline 6.
  • An additional centrally disposed nozzle 7 is connected by a pipeline 8 to the same watersupply system.
  • the nozzles may be either hollow spray cone or solid stream cone nozzles.
  • the wet-treatment chamber 2 with the nozzles is divided off from the sump 3 by means of a partition 9 forming an upper wall of a diffuser-like or venturi-like outlet 10 which extends outwardly from the axis ofthe vessel and from the direction of flow of the gas in the vessel.
  • the wall 9 of the outlet 10 may be provided with wear plates 9 and is rigidly connected with the housing of the vessel, simultaneously forming the base for a flange forming an aperture 11 of which has sloping side walls 12 and is constructed as a vertically disposed gas conducting passage.
  • the gas leaving the wet-treatment chamber 2 flows through this gas conducting passage and then, almost at right angles, through the inlet gap 13 of the diffuser-like outlet 10, the lower wall 14 of which, can also be covered by wear plates 14', is supported on a tube 16 running axially of the vessel, by means of brackets 15. Passing through this tube 16 is a rod 17 on the upper end of which a round pan 18 is fixed so as to be capable of being raised and lowered, during which raising and lowering operations its edges 19 alter the width of the inlet gap 13 of the outlet 10. The pan is dished so that it fills up with the water sprayed through the nozzles 5 and 7 until it overflows.
  • the overflow water is carried along by t-he gas into the outlet 10 whence it flows into the sump 3 so that, in the outlet 10, the gas is subjected to an additional cleansing and cooling.
  • vanes 20 can be disposed at the end of the outlet.
  • easily removable wear rings 19' and 12 respectively can be fitted.
  • the pan 18 can be moved by means of a raising and lowering device 21.
  • the water collecting in the chamber 2 can be led by way of a pipe 22 to a discharge pipe 23 of the sump 31.
  • An overow arrangement 24 may also be provided for the water which accumulates in the sump 3.
  • the whole apparatus rests on the supports 25 to which may be connected staging and ⁇ access boards 26.
  • FIGURES 2 and 3 The constrcction shown in FIGURES 2 and 3 has the essential difference from that in FIGURE l that, in consequence of the horizontal disposition of the apparatus, the sumps are now constructed along what was the side of the Vessel of FIGURE 1.
  • 3* indicates a collecting tank for the water which accumulates through openings 27 from the lower part of the vessel behind the outlet 10.
  • the wall 14 of the diffuser-like outlet 10 can be carried by supports distributed around the periphery of the vessel 2.
  • a supporting framework 26* carries the drive means 21 for the pan 18.
  • An apparatus for the Wet cleaning of dust from gas comprising -a housing having a side wall, a top, a bottom, and a partiti-on between the top and the :bottom for forming a gas inlet chamber and a gas outlet chamber on opposite sides of said partition, liquid spray nozzle means mounted on the side wall of the gas inlet chamber for spraying cleaning liquid into said housing, gas inlet means in said gas inlet chamber, gas outlet means in said gas Outlet chamber, a gas passageway in said partition, plate means mounted in said gas outlet chamber and forming with said partition an annular diverging slot between said plate means and partition directed toward said side wall which constitutes a venturi-like structure directed substantially at a right angle to the longitudinal axis through said gas passageway, and dished pan means of substantially the same size as said gas passageway in said gas outlet chamber movably mounted for being lifted and lowered for changing the effective opening from said gas passageway into said slot.
  • An apparatus as in claim 1 further comprising flange means in said gas inlet chamber and surrounding said gas passageway, said flange means being sloped toward said gas passageway, and liquid spray nozzle means mounted within said flange means for spraying gas deflected by said flange means and passing through said passageway.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)
US572508A 1965-08-14 1966-08-15 Apparatus for the wet treatment of dust-laden gases Expired - Lifetime US3406499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0066325 1965-08-14

Publications (1)

Publication Number Publication Date
US3406499A true US3406499A (en) 1968-10-22

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ID=7311769

Family Applications (1)

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US572508A Expired - Lifetime US3406499A (en) 1965-08-14 1966-08-15 Apparatus for the wet treatment of dust-laden gases

Country Status (4)

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US (1) US3406499A (pt)
BE (1) BE685365A (pt)
GB (1) GB1107459A (pt)
NL (1) NL147639B (pt)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640054A (en) * 1970-04-17 1972-02-08 Norman Katz Cleaning pollutants from furnace and incinerator smoke and the like
US3802162A (en) * 1973-04-17 1974-04-09 Vortex Air Corp Air cleaner
US3834127A (en) * 1972-05-19 1974-09-10 Metallgesellschaft Ag Apparatus for the scrubbing of gases
US3920422A (en) * 1971-10-18 1975-11-18 Purity Corp Pollution control apparatus and method
US3998612A (en) * 1975-09-05 1976-12-21 Schneible Company Annular venturi gas scrubber
US4080183A (en) * 1975-04-08 1978-03-21 Metallgesellschaft Aktiengesellschaft Radial flow scrubber
WO1979001130A1 (en) * 1978-05-26 1979-12-27 Occidental Res Corp Entrainment separator and gas-liquid contactor
US4209502A (en) * 1974-05-06 1980-06-24 Pircon Ladislav J Heterogeneous process
US4253853A (en) * 1979-10-16 1981-03-03 Occidental Research Corporation Contactor and entrainment separator
US4316728A (en) * 1978-05-26 1982-02-23 Occidental Research Corporation Entrainment separator
US8691000B2 (en) 2009-04-09 2014-04-08 Outotec Oyj Wet gas scrubber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US144884A (en) * 1873-11-25 Improvement in locomotive smoke-stacks
US2937013A (en) * 1956-04-20 1960-05-17 Ernest F Fisher Water cooled deflectors used in fly ash suppression systems
US3113168A (en) * 1957-07-02 1963-12-03 Kinney Eng Inc S P Furnace gas cleaning and cooling apparatus
US3199267A (en) * 1961-01-19 1965-08-10 Bischoff Gottfried Gas scrubber
GB1024208A (en) * 1964-02-25 1966-03-30 Metallgesellschaft Ag Apparatus for the wet treatment of dust-laden gases

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US144884A (en) * 1873-11-25 Improvement in locomotive smoke-stacks
US2937013A (en) * 1956-04-20 1960-05-17 Ernest F Fisher Water cooled deflectors used in fly ash suppression systems
US3113168A (en) * 1957-07-02 1963-12-03 Kinney Eng Inc S P Furnace gas cleaning and cooling apparatus
US3199267A (en) * 1961-01-19 1965-08-10 Bischoff Gottfried Gas scrubber
GB1024208A (en) * 1964-02-25 1966-03-30 Metallgesellschaft Ag Apparatus for the wet treatment of dust-laden gases

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640054A (en) * 1970-04-17 1972-02-08 Norman Katz Cleaning pollutants from furnace and incinerator smoke and the like
US3920422A (en) * 1971-10-18 1975-11-18 Purity Corp Pollution control apparatus and method
US3834127A (en) * 1972-05-19 1974-09-10 Metallgesellschaft Ag Apparatus for the scrubbing of gases
US3802162A (en) * 1973-04-17 1974-04-09 Vortex Air Corp Air cleaner
US4209502A (en) * 1974-05-06 1980-06-24 Pircon Ladislav J Heterogeneous process
US4080183A (en) * 1975-04-08 1978-03-21 Metallgesellschaft Aktiengesellschaft Radial flow scrubber
US3998612A (en) * 1975-09-05 1976-12-21 Schneible Company Annular venturi gas scrubber
WO1979001130A1 (en) * 1978-05-26 1979-12-27 Occidental Res Corp Entrainment separator and gas-liquid contactor
US4316728A (en) * 1978-05-26 1982-02-23 Occidental Research Corporation Entrainment separator
US4253853A (en) * 1979-10-16 1981-03-03 Occidental Research Corporation Contactor and entrainment separator
US8691000B2 (en) 2009-04-09 2014-04-08 Outotec Oyj Wet gas scrubber

Also Published As

Publication number Publication date
NL6611361A (pt) 1967-02-15
NL147639B (nl) 1975-11-17
BE685365A (pt) 1967-01-16
GB1107459A (en) 1968-03-27
DE1546674A1 (de) 1970-12-03
DE1546674B2 (de) 1972-10-19

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