US3771469A - Incinerator - Google Patents

Incinerator Download PDF

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Publication number
US3771469A
US3771469A US00279197A US3771469DA US3771469A US 3771469 A US3771469 A US 3771469A US 00279197 A US00279197 A US 00279197A US 3771469D A US3771469D A US 3771469DA US 3771469 A US3771469 A US 3771469A
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US
United States
Prior art keywords
burner nozzle
cooling gas
enclosure
chamber
incinerator
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
US00279197A
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English (en)
Inventor
Ali S Aejaz
R Shields
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US3771469A publication Critical patent/US3771469A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators

Definitions

  • This invention relates to incinerator apparatus of the type disclosed in copending US. applications for patent Ser. No. 159,251, filed July 2, 1971 by Robert J. Hasselbring and Robert L. Shields; Ser. No. 218,926, filed Jan. 19, 1972 by Syed A. All and Robert L. Shields; and Ser. No. 219,041, filed Jan. 19, 1972 by Robert L. Shields; and in US. Pat. No. 3,577,940 issued May 1 l, 1971 to Robert J. Hasselbring and Robert L. Shields; and US. Pat. No. 3,658,017 issued Apr. 25, 1972 to Norman R. Dibelius and William L. Zabriskie, all assigned to the same assignee as the present invention.
  • flue gas cleaning apparatus In an effort to comply with regulatory air pollution codes, more recent incinerator designs have provided for cleaning the gaseous products of combustion prior to their discharge to atmosphere. Such flue gas cleaning apparatus is usually of costly and bulky construction and in some cases has not operated to clean the flue gases sufficiently to comply with regulatory codes.
  • One known flue gas cleaning apparatus includes means for conducting the gaseous products of combustion through water sprays so that the suspended ashes and other particulate matter are entrained in the water which is then collected and conveyed to a suitable clarification system. This type of flue gas cleaning apparatus is expensive and complex and contributes not only to the high cost and massive structure of prior art incinerators, but also to water pollution.
  • the burner nozzle in this invention is provided with an enclosure annularly spaced thereabout forming an intermediate space surrounding the nozzle for the passage of cooling gas over the surface of the nozzle, and may further be provided with means for directing the path of flow of the cooling gas, preferably in a swirling pattern.
  • the cooling system prevents overheating and as a result thereof avoids distortion and/or erosion of the nozzle unit.
  • the combustion chamber of the incinerator unit may be of any suitable configuration and is preferably cylindrical including a pair of spaced end walls 12and 34 connected by an annular side wall 16.
  • the chamber 10 is preferably disposed when in operative position so that its central longitudinal axis which extends between the end walls 12 and I4 is horizontal or substantially horizontal as shown in FIG. 1.
  • the annular side wall 16 of the chamber comprises an outer casing 18 (FIG. 2) formed of a suitable material such as low carbon steel and the casing is lined with a refractory material 20 such as one or more layers of fire brick.
  • the end walls 12 and 14 of chamber 10 may be similarly lined with a refractory such as fire brick.
  • a flue 24 having an open end opening into the combustion chamber 10 in the region of the end wall 14 and substantially concentric with the central longitudinal axis of the combustion chamber 10 is provided to connect the combustion chamber to an exhaust stack 26 opening to the atmosphere.
  • the burner nozzle 34 which guides and confines the flame jet through the combustion chamber wall 16, and of necessity is of extended length because of its angle of entry, is provided with an enclosure annularly spaced thereabout which may comprise an outer sleeve or conduit 36 ofa diameter larger than the diameter of the burner nozzle 34 positioned substantially concentrically around said burner nozzle 34, forming an intermediate space 38 about the burner nozzle for the passage of cooling gas over the exterior surface of the burner nozzle 34.
  • the sleeve 36 extends from the region of the inner wall surface, through the chamber wall and to a region externally of the chamber and beyond which cooling is not required.
  • Another means of inducing the swirling motion or flow path to the cooling gas for its passage through the surrounding space 38 about the burner nozzle 34 is provided by a plurality of fluid directing or guiding vanes or baffles 46 within the intermediate surrounding space 38, as shown in FIG. 5.
  • the arrangement and/or direction of the baffles 46 will impose or accenuate a swirling motion to the cooling gas as it passes through the inter-mediate surrounding space 38.
  • the cooling effect of the cooling gas can be further augmented by cating and physically attaching the fluid directing vanes or baffles 46 on the burner nozzle 34 as shown in FIG.
  • means for igniting said waste material during its vortical movement comprising a burner having a nozzle directed into the combustion chamber, said burner nozzle being provided with an enclosure annularly spaced thereabout whereby cooling gas can be passed over the surface of the burner nozzle.
  • incinerator of claim ll further comprising means for effecting movement of the cooling gas in a swirling path over the surface of the burner'nozzle.
  • the incinerator of claim 1, wherein the enclosure annularly spaced about the burner nozzle comprises a sleeve of a diameter larger than that of the said burner nozzle and which is positioned substantially concentrically around the said burner nozzle, thereby providing an intermediate space surrounding the burner nozzle for the passage of cooling gas therethrough and over the surface of the burner nozzle.
  • annular plenum chamber surrounds the burner nozzle and communicates through at least one port with the said sleeve comprising the enclosure annularly spaced about the burner nozzle to feed cooling gas for passage through the surrounding space about the burner nozzle and over the surface of the nozzle.
  • annular plenum chamber is connected with a source of cooling gas whereby said cooling gas is provided to said annular plenum chamber and in turn is fed into the said sleeve comprising the enclosure annularly spaced about the burner nozzle for passage through the surrounding space about the burner nozzle and over the surface of the nozzle.
  • connection of the source of cooling gas to the annular plenum chamber enters said annular plenum chamber tangentially to thereby induce a swirling motion to the cooling gas entering said chamber whereby the cooling gas fed to the sleeve comprising the enclosure annularly spaced about the burner nozzle and passing through the surrounding space thereabout moves in a swirling path over the surface of the burner nozzle.
  • annular plenum chamber is connected with a source of cooling gas and the connection with the said source of cooling gas enters the annular plenum chamber tangentially to thereby induce a swirling motion to the cooling gas entering said chamber whereby cooling gas fed to the sleeve comprising the enclosure annularly spaced about the burner nozzle and passing through the surrounding space thereabout moves in a swirling path over the surface of the burner nozzle.
  • baffle is attached to the combustion chamber burner nozzle whereby the baffle functions as a cooling fin conducting heat away from the burner nozzle and dissipating the heat in the cooling gas passing through the enclosure annularly spaced about the burner nozzle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
US00279197A 1972-08-09 1972-08-09 Incinerator Expired - Lifetime US3771469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27919772A 1972-08-09 1972-08-09

Publications (1)

Publication Number Publication Date
US3771469A true US3771469A (en) 1973-11-13

Family

ID=23068038

Family Applications (1)

Application Number Title Priority Date Filing Date
US00279197A Expired - Lifetime US3771469A (en) 1972-08-09 1972-08-09 Incinerator

Country Status (4)

Country Link
US (1) US3771469A (pm)
JP (1) JPS4987153A (pm)
DE (1) DE2339836A1 (pm)
GB (1) GB1432183A (pm)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885906A (en) * 1974-05-21 1975-05-27 Alexei Petrovich Shurygin Cyclone furnace
US4119046A (en) * 1976-08-11 1978-10-10 Adams Jack C Incineration system and method
US5445087A (en) * 1992-04-17 1995-08-29 Kaneko; Masamoto Apparatus for incinerating waste material
EP1486729A4 (en) * 2002-03-12 2007-07-11 Sanyo Ind Co Ltd INCINERATOR

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2599563Y2 (ja) * 1992-02-07 1999-09-13 有限会社本宮工業所 粉体焼却装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396881A (en) * 1966-06-27 1968-08-13 Aloi Alfred Garment shaping bag with resilient inserts
US3482533A (en) * 1968-06-28 1969-12-09 Borge Richard Ankersen Incinerators
US3489108A (en) * 1967-09-20 1970-01-13 Garver Davis Inc Method of and apparatus for sludge disposal
US3631823A (en) * 1970-02-03 1972-01-04 Clifford A Scogin Incinerator
US3658017A (en) * 1971-01-04 1972-04-25 Gen Electric Incinerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396881A (en) * 1966-06-27 1968-08-13 Aloi Alfred Garment shaping bag with resilient inserts
US3489108A (en) * 1967-09-20 1970-01-13 Garver Davis Inc Method of and apparatus for sludge disposal
US3482533A (en) * 1968-06-28 1969-12-09 Borge Richard Ankersen Incinerators
US3631823A (en) * 1970-02-03 1972-01-04 Clifford A Scogin Incinerator
US3658017A (en) * 1971-01-04 1972-04-25 Gen Electric Incinerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885906A (en) * 1974-05-21 1975-05-27 Alexei Petrovich Shurygin Cyclone furnace
US4119046A (en) * 1976-08-11 1978-10-10 Adams Jack C Incineration system and method
US5445087A (en) * 1992-04-17 1995-08-29 Kaneko; Masamoto Apparatus for incinerating waste material
EP1486729A4 (en) * 2002-03-12 2007-07-11 Sanyo Ind Co Ltd INCINERATOR

Also Published As

Publication number Publication date
JPS4987153A (pm) 1974-08-21
GB1432183A (en) 1976-04-14
DE2339836A1 (de) 1974-02-21

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