US3395656A - Flyash removal device for incinerators - Google Patents

Flyash removal device for incinerators Download PDF

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Publication number
US3395656A
US3395656A US612463A US61246367A US3395656A US 3395656 A US3395656 A US 3395656A US 612463 A US612463 A US 612463A US 61246367 A US61246367 A US 61246367A US 3395656 A US3395656 A US 3395656A
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US
United States
Prior art keywords
combustion chamber
flyash
incinerator
particles
flue
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.)
Expired - Lifetime
Application number
US612463A
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English (en)
Inventor
Lewis M Ford
David M Franklin
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.)
STEELCRAFT CORP
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STEELCRAFT CORP
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Filing date
Publication date
Application filed by STEELCRAFT CORP filed Critical STEELCRAFT CORP
Priority to US612463A priority Critical patent/US3395656A/en
Priority to BE710062D priority patent/BE710062A/xx
Application granted granted Critical
Publication of US3395656A publication Critical patent/US3395656A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/36—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a conical combustion chamber, e.g. "teepee" incinerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • 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
    • Y10S261/09—Furnace gas scrubbers

Definitions

  • ABSTRACT OF THE DISCLOSURE An apparatus consisting of spray nozzle means for removing fiyash and other solid particles from incinerator smoke, wetting the solid particles with water allowing them to return below the incinerator passing a number of concentric louvers, through a catch basin, the catch basin having drain means to carry the wetted matter away from the incinerator.
  • the embodiment of the present invention pertains to new and useful improvements in the removal of solid matter in the form of free particles from the smoke, or vapor by-product, formed as a result of the combustion of materials in a combustion chambered device such as an incinerator, and more particularly to the prevention of the emission of the flyash formed by combustion, from the incinerator.
  • the invention further provides means for substantially saturating the minute solid particles of matter produced by the combustion in the burner or incinerator, to increase the weight of the minute particles until the particles become heavier than the surrounding air in the combustion gases and are moved gravitationally downwardly toward the burner where they may be trapped in a suitable catch basin and transported therefrom through suitable drain means away from the combustion chamber and the burner or incinerator.
  • the present invention employs the use of water delivered either from a sump or from an outside source, not shown, for vaporization or spraying, to impinge upon and substantially increase the weight of the free particles in the flue gases allowing the saturated particles to drop more rapidly downwardly into the catch basin and therebeyond away from the incinerator.
  • the present invention provides means for transporting the liquid used for wetting the free particles and other combustion by-products carried by the smoke and flue gases away from the firebox or combustion chamber of the incinerator.
  • the sprayed liquid is directed downwardly inwardly toward the axial center of the incinerator by means of a funnel means consisting preferably of truncated louvers and thence through a catch basin and drain means.
  • the present invention provides an improvement in the removal of flyash and other solid mat-ter from the gases emitted during combustion in incinerators and similar burning devices, wherein the improvement comprises spray means preferably of a plurality suspended in the flue above the incinerator dome but below the emission point substantially in the path of the upwardly escaping flue gases to moisten the flyash and other particles carried by these flue gases and direct the heavier saturated particles downwardly toward a funnel means preferably comprising a series of concentric spaced louvers, preferably arranged in series of successively downwardly reducing louvers forming in effect a downwardly tapering inverted cone-like structure of the louvers, into a catch basin and therefrom through drain means away from the incinerator, the flyash and particles being substantially entrained with the liquid for such discharge.
  • spray means preferably of a plurality suspended in the flue above the incinerator dome but below the emission point substantially in the path of the upwardly escaping flue gases to moisten the flyash and other particles carried by these flue gases and direct the
  • the principal object of the present invention is to provide means for the removal of flyash and other solid matter from the smoke and flue gases formed by combustion in an incinerator or similar burning device.
  • Another object of the present invention is to provide funnel louver means for incinerators to direct the descending flyash and wetted solid matter away from the ascending smoke path produced by the combustion within the incinerator.
  • a further object of the present invention is to provide a catch basin and drain means for incinerators to accumulate and transport flyash and other solid materials externally of the incinerator combustion chamber.
  • Another object of the present invention is to provide an incinerating device with spaced apart concentric louvers contained therein to permit the wetted flyash and other solid particles to pass downwardly across the inner surfaces thereof, and the smoke gases and products of combustion to pass upwardly through the spaces therebetween;
  • Another object of the present invention is to improve the design, construction and efficiency of incinerators and similar burner devices.
  • FIG. 1 is a front elevational view of an incinerator incorporating the device of the present invention.
  • FIG. 2 is a fragmentary vertical cross sectional view of the device of FIG. 1 as taken on the line II-II of FIG. 1.
  • FIG. 3 is a fragmentary transverse cross-sectional view of the device of FIG. 1 as taken on the line IIIIII of FIG. 2;
  • FIG. 4 is a transverse cross-sectional view of the device of FIG. 1 as taken on the line IVIV of FIG. 2.
  • the embodiment of the present invention comprises an incinerator or like burner device 11, provided with a conically shaped combustion chamber 13 and a substantially cylindrical chimney or flue 15 attached to the uppermost portion of the combustion chamber 13 and extending upwardly therefrom.
  • the combustion Chamber 13 comprises preferably a conical outer skin portion 17 and an inner substantially heat-retaining liner 19 spaced somewhat inwardly of the outer skin 17 and in substantially conical alinement therewith.
  • the combustion chamber 13 additionally comprises a plurality of randomly spaced rods 20 interposed between the outer skin 17 and the inner liner 19 in perpendicular relation to the outer skin 17 and the inner liner 19 maintaining the substantially parallel spaced apart relation between skin 17 and liner 19, to provide a substantial insulating layer of air between the inner liner 19 and the outer skin 17 reducing the transference of heat from the inner liner 19 to the outer skin 17.
  • the device is further provided with a water pipe 21, attached to a source of water under pressure (not shown) extending upwardly externally of and along the combustion chamber 13 and the attached cylindrical flue 15.
  • the pipe 21 connects the water supply into the present device and, for purposes of illustration here, is provided at its uppermost end with a substantially perpendicularly disposed leg 23 extending inwardly of the cylindrical flue 15 and terminating at a suitable connector 25 positioned preferably substantially on the vertical axis of the cylindrical flue 15.
  • a pipe 27, affixed to the connector 25 and communicating with pipes 21, 23, is shown depending downwardly into threaded engagement with a distributor 29 spaced somewhat below the connector 25.
  • Distributor 29 is shown as preferably provided with a plurality of radially outwardly extending, angularly downwardly disposed tubular hollow arms 31 having a like plurality of nozzles 33 attached to the distal ends thereof, all thus communicating with the water supply from pipe 21. It will be appreciated that in some constructions the nozzle means need only comprise a single nozzle which may be connected as desired to the liquid supply.
  • the device of the present invention as shown further comprises pipe means 35 attached in flow communication to distributor 29 below arms 31, extending substantially vertically downwardly from distributor 29, and having attached to its distal extremity a disc-like fitting 37 provided with a plurality of radially outwardly, angularly downwardly disposed tubes 39.
  • the tubes 39 are provided with supplemental nozzles 41 attached to the outer ends thereof disposed in intermediate spaced relation offset from the disposition of the nozzles 33. It will be understood that the supplemental nozzles may be omitted or may be limited to one nozzle means.
  • the combustion chamber 13 is provided internally in its upper throat portion with a series of angularly deformed bracket members 43 attached as by welding or similar means to the inner surface of the outer skin 17 depending inwardly toward the vertical axis of the combustion chamber 13.
  • the brackets 43 are adapted to support a plurality of truncated frusto-conical louvers in concentric arrangement to form a substantially funnel shaped configuration.
  • the uppermost louver 45 is attached to the inner surface of the outer skin 17 and is positioned to direct the falling moisture-laden ash and other particles peripherally inwardly and downwardly to the subjacently spaced frusto-conical louver 47 attached to the upper ends of the brackets 43.
  • the descendingly layered concentric frusto-conical louvers 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, arranged in the aforementioned funnel shaped configuration will direct moisture laden material downwardly toward the vertical axis of the combustion chamber 13, to the catch basin 69 spaced below the louver 67 to accumulate: the droplets of liquid and the matter carried thereby, and allow the warmer lighter than air smoke to pass upwardly through the spaces between the louvers 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, the spaces in efiect providing slots between the louvers so as to create a slotted funnel.
  • the catch basin 69 is substantially conical and is provided with egress means 71 at its inverted apex to direct the wetted ash and other matter accumulated therein downwardly external the catch basin 69 into the attached angularly disposed drain pipe 73.
  • the drain pipe 73 extends through and is supported by a snugly embracing aperture in the inner liner 19 of the combustion chamber 13, and is attached to a drain downspout stand pipe 75 interposed between the outer skin 17 and the inner liner 19 of the combustion chamber.
  • the drain downspout stand pipe 75 is provided for carrying the wetted flyash and other moisture laden material away from the incinerator 11 to a suitable sump means not shown.
  • the present invention is further provided with an entry door 77 mounted on the periphery of the base of the combustion chamber 13 for access to the combustion chamber, ladder means 79 extending substantially vertically upwardly from the door 77 and attached to the outer skin 17 of the combustion chamber 13, a substantially circular catwalk 81 affixed to the upper end of the combustion chamber 13 somewhat below the junction of the combustion chamber and the hue 15, an upper door 83 for access to the louvers contained in the upper portion of the combustion chamber 13, and a ladder 85 extending upwardly from the catwalk 81 to the top of the flue 15.
  • the spray droplets containing entrained fiyash and other minute particles are directed gravitationally downwardly into contact with the inner surfaces of the louvers 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, and into the catch basin 69.
  • the insulation around the catch basin 69 and the dram means 73 prevent the liquid from heating and vaporrzing and further allow the entrained fiyash carrying llquid to be transported rapidly away from the combustion chamber to a sump or reservoir.
  • the funnel like structure preferably formed of the louver rings may be otherwise formed and that the slots may be otherwise formed in such funnel and may be circumferentially continuous or may be discontinuous.
  • liquid spraying nozzle means communicated to said supplying means comprising a plurality of nozzles, (2) said nozzle means being downwardly directed Within said flue including pingue upon and wet said fiyash and minute particles in said products of combustion within said flue, so as substantially to entrain said fiyash and minute particles with said discharged liquid, (3) said nozzle means comprising a pair of series of nozzles, one said series of nozzles being positioned vertically away from the other of said series, the nozzles of each said series being horizontally circumferentially spaced apart,
  • basin means disposed below said funnel means to accumulate said liquid and entrained matter, deposited from the lower end of said funnel means.
  • drain means communicating into said basin means for draining accumulations from said 20 basin means, said drain means including downspout pipe means extending externally beyond said combustion chamber.
  • said combustion chamber includes an inner liner within said outer skin and said drain means includes a downspout stand pipe interposed between said inner liner and said outer skin to substantially maintain said liquid and the flyash and particles entrained therewith discharging through said drain means at a temperature below the level of evaporation of said liquid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chimneys And Flues (AREA)
US612463A 1967-01-30 1967-01-30 Flyash removal device for incinerators Expired - Lifetime US3395656A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US612463A US3395656A (en) 1967-01-30 1967-01-30 Flyash removal device for incinerators
BE710062D BE710062A (de) 1967-01-30 1968-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612463A US3395656A (en) 1967-01-30 1967-01-30 Flyash removal device for incinerators

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442232A (en) * 1967-11-09 1969-05-06 John H White Effluent cleaner for waste burner
US3473298A (en) * 1967-12-26 1969-10-21 Westinghouse Electric Corp Moisture content and combustion product removal apparatus for exhaust gases
US3504894A (en) * 1968-02-21 1970-04-07 Commercial Fabrication & Machi Apparatus for purifying and accelerating the flow of effluent gases in a gaseous flow stream
US3518816A (en) * 1968-07-17 1970-07-07 Michael M Jalma Gas scrubbing equipment
US3802161A (en) * 1972-07-31 1974-04-09 N Talbert Humidifier
US4000228A (en) * 1974-03-08 1976-12-28 Ivan Vasilievich Chevakin Cooling tower with removable spraying elements
US4432914A (en) * 1982-06-23 1984-02-21 Kenneth C. Schifftner, Inc. Mass transfer contact apparatus
US5560756A (en) * 1993-10-12 1996-10-01 Zeritis; Nikolaos Chimney smoke scrubber
US6648949B1 (en) * 2001-11-28 2003-11-18 The United States Of America As Represented By The United States Department Of Energy System for small particle and CO2 removal from flue gas using an improved chimney or stack

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2108248A (en) * 1934-11-07 1938-02-15 Francis R Bichowsky Conditioning air or gas
US2869487A (en) * 1955-08-25 1959-01-20 Silent Glow Oil Burner Corp Incinerators
US2978998A (en) * 1958-06-17 1961-04-11 Maynard E Hill Incinerator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2108248A (en) * 1934-11-07 1938-02-15 Francis R Bichowsky Conditioning air or gas
US2869487A (en) * 1955-08-25 1959-01-20 Silent Glow Oil Burner Corp Incinerators
US2978998A (en) * 1958-06-17 1961-04-11 Maynard E Hill Incinerator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442232A (en) * 1967-11-09 1969-05-06 John H White Effluent cleaner for waste burner
US3473298A (en) * 1967-12-26 1969-10-21 Westinghouse Electric Corp Moisture content and combustion product removal apparatus for exhaust gases
US3504894A (en) * 1968-02-21 1970-04-07 Commercial Fabrication & Machi Apparatus for purifying and accelerating the flow of effluent gases in a gaseous flow stream
US3518816A (en) * 1968-07-17 1970-07-07 Michael M Jalma Gas scrubbing equipment
US3802161A (en) * 1972-07-31 1974-04-09 N Talbert Humidifier
US4000228A (en) * 1974-03-08 1976-12-28 Ivan Vasilievich Chevakin Cooling tower with removable spraying elements
US4432914A (en) * 1982-06-23 1984-02-21 Kenneth C. Schifftner, Inc. Mass transfer contact apparatus
US5560756A (en) * 1993-10-12 1996-10-01 Zeritis; Nikolaos Chimney smoke scrubber
US6648949B1 (en) * 2001-11-28 2003-11-18 The United States Of America As Represented By The United States Department Of Energy System for small particle and CO2 removal from flue gas using an improved chimney or stack

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Publication number Publication date
BE710062A (de) 1968-07-29

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