US3577940A - Incinerator - Google Patents

Incinerator Download PDF

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Publication number
US3577940A
US3577940A US869823A US3577940DA US3577940A US 3577940 A US3577940 A US 3577940A US 869823 A US869823 A US 869823A US 3577940D A US3577940D A US 3577940DA US 3577940 A US3577940 A US 3577940A
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Prior art keywords
chamber
incinerator
sidewall
separator
waste material
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US869823A
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English (en)
Inventor
Robert Joel Hasselbring
Robert Loren Shields
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General Electric Co
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General Electric Co
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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
    • F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators

Definitions

  • An incinerator for burning waste material includes a combustion chamber having spaced end walls and a sidewall through which a mixture of waste material and air is introduced under pressure tangentially for establishing a vortical movement of the waste material toward one of the end walls.
  • the waste material is ignited during its vortical move ment and the chamber includes a discharge flue at the one end wall which is concentric with the central axis of the chamber and which has an open end in the chamber spaced axially of the one end wall.
  • a second discharge port adjacent the one end wall extends tangentially through the sidewall for discharging from the chamber products residual combustible material and noncombustible material entrained in the outer region of the vortex.
  • the discharged material is conveyed through a conduit to a separator which separates the discharged gases and solid material. Theseparated gases and any solid particles suspended therein are introduced back into the chamber.
  • a baffle is mounted on the flue adjacent its open end for deflecting outwardly toward the sidewall solid material which moves from adjacent the one end wall toward the open end of the flue.
  • 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 the 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.
  • One known apparatus for accomplishing this function comprises a conveyor disposed beneath the combustion chambers for receiving such material and for conveying the same from the combustion chambers to a suitable disposition area.
  • Such conveying apparatus is also very costly and in addition occupies considerable space which further contributes to the high cost and massive structure of prior art incinerators.
  • an incinerator which includes a combustion chamber having spaced end walls and a sidewall with its central longitudinal axis extending between the end walls.
  • the chamber is preferably disposed in operative position with its central longitudinal axis extending horizontally or substantially horizontally.
  • Means are provided for introducing a mixture of waste material and air under pressure into the chamber tangentially to the sidewall for establishing a vortical movement of the waste material toward one of the end walls and provision is made for igniting the waste material during its vortical movement.
  • a discharge flue is located adjacent the one end wall and extends substantially concentric with the central longitudinal axis of the chamber and a second discharge port is located in the region of the one end wall adjacentthe inner surface of the sidewall for discharging from the chamber residual combustible material and noncombustible material entrained in the outer region of the vortex.
  • the material discharged by the second port is conveyed through a conduit to a separator which separates the gases and the solid material and means are provided to introduce the separated gases and any solid particles suspended therein back into the combustion chamber.
  • FIG. I is a view in top plan of an incinerator embodying the invention.
  • FIGS. 1 and 2 an incinerator embodying the invention and comprising in general a size-reduction unit for chopping up the waste material, a pneumatic conveying system which receives the chopped material, a vortex combustion chamber for receiving the chopped material from the pneumatic conveying system, discharge means for discharging gaseous products of combustion, residual combustible material and noncombustible material from the combustion chamber, and a separator for separating the gases and solid material discharged by the discharge means.
  • the incinerator of the present invention is particularly suited for disposing of solid industrial and municipal waste material such as for example, paper, peanut hulls, cardboard cartons, wood scrap, garbage, foliage, bottles, cans and combustible floor sweepings.
  • solid industrial and municipal waste material such as for example, paper, peanut hulls, cardboard cartons, wood scrap, garbage, foliage, bottles, cans and combustible floor sweepings.
  • the incinerator is also capable of disposing of liquid waste material such as oils, paint sludges and plating tank residue.
  • the incinerator as shown in FIG. 1 includes a size-reduction unit 10 designed to shred and chop the waste material into pieces small enough to be efficiently conveyed to and burned in the combustion chamber. If the waste material to be disposed of is already of an acceptable size, such as sawdust, 'then the size-reduction unit 10 is not required.
  • the size-reduction unit 10 may be of any suitable construction and includes a hopper 12 having an open end 13 into which the waste material is fed for size reduction by a shredding and chopping mechanism (not shown) operated by a motor 14.
  • the waste material After being reduced in size the waste material is drawn into a pneumatic conveying system including .a blower l6 operated by a motor 18 which entrains the size-reduced material in an airstream and transports it through a pipe 20 which opens into a combustion chamber 22.
  • a blower l6 operated by a motor 18 which entrains the size-reduced material in an airstream and transports it through a pipe 20 which opens into a combustion chamber 22.
  • the combustion chamber 22 may be of any suitable configuration and is preferably cylindrical including a pair of spaced end walls 24 and 26 connected by an annular sidewall 28.
  • the chamber 22 is preferably disposed when in operative position so that its central longitudinal axis which extends between the end walls 24 and 26 is horizontal or substantially horizontal as shown in FIG. 3.
  • the end wall 26 of the chamber 22 may include an access door 30 to pennit access to the interior of the chamber 22.
  • the sidewall 28 of the chamber 22 comprises an outer casing 32 (FIGS. 3 and 4) formed of suitable material such as a low carbon steel and the casing 32 is lined with one or more inner layers 34 and 36 of suitable material such as fire brick.
  • the innermost layer 34 is designed to exhibit good resistance to abrasion whereas the layer 36 may be designed to have good heat-insulating qualities or to transfer the heat to a remote location.
  • the end walls 24 and 26 of the chamber 22 may be similarly formed of an outer layer of low carbon steel with inner layers of fire brick.
  • the pipe enters the chamber 22 tangentially of the sidewall 28 near the topof the chamber 22 adjacent the end wall 26 and at the left side of the chamber as viewed in FIG. I. In certain installations it may be desirable to have the pipe 20 enter the chamber 22 at an area which is substantially midway between the end walls 24 and 26.
  • a suitable gas burner 38 is disposed near the end wall 26 of the chamber 22 to fire tangentially into the chamber adjacent the bottom and at the right side thereof as viewed in FIG. I. Under conditions wherein a mixture of waste material and air is continuously fed into the chamber 22, it has been observed that the burner 38 may ordinarily be turned off after ignition of the waste material is accomplished.
  • a fan 40 driven by a motor 42 is disposed to introduce secondary air into the chamber 22 preferably near the bottom and at the right side thereof as viewed in FIG. I.
  • the secondary air is injected tangentially to the sidewall 28 at an area downstream of the area of introduction of the mixture of primary air and waste material.
  • means may be provided for preheating the secondary air which is introduced into the chamber 22 by the fan 40.
  • the combustible waste material is substantially completely burned in suspension in a free vortex with the heavier solid waste fragments and noncombustible material traveling in a vortical path along the inner surface of the layer 34 and migrating toward the end wall 24.
  • the solid material is forced toward the inner surface of the layer 34 by the tangential component of velocity of the vortex whereas the radially inward component of velocity creates high relative velocity between the air and burning material which greatly accelerates the combustion rate.
  • first discharge means including a first discharge port or flue 44 having an open end opening in the chamber in the region of the end wall 24 and substantially concentric with the central longitudinal axis of the chamber 22.
  • the flue 44 includes a hollow cylinder 46 of any suitable material extending through an opening of a casting 48 which forms part of the end wall 24.
  • the end wall 24 includes adjacent layers 50 and 52 formed of suitable material such as fire brick, a casting 54, and an outer annular plate 56 all secured together by suitable fasteners (not shown) and all surrounding the casting 48.
  • An annular plate 57 surrounds the cylinder 46 and is joined to its outer periphery.
  • the plate 57 is secured to the casting 48 at its outer surface by suitable fasteners (not shown) and overlaps a portion of the plate 56.
  • the plates 56 and 57 are detachably secured together in any suitable manner at their overlapping portions in order to detachably connect the flue 44 and the casting 48 to the end wall.
  • the cylinder 46 is releasably attached to a flue section 58 shown in FIGS. 1 and 3 which includes a vertically extending portion 58a outside the chamber 22 which terminates in an open end 59 (FIG. 1) opening to atmosphere.
  • second discharge means is provided for discharging from the chamber 22 during the burning process residual combustible material and noncombustible material.
  • the preferred embodiment provides a second discharge port 60 having an open end 62 opening in the chamber 22in the region of the end wall 24 and adjacent the inner surface of the layer 34 for receiving and discharging from the chamber residual combustible material and noncombustible material which are entrained in the outer region of the vortex.
  • the port 60 comprises a conduit extending through the sidewall 28 tangentially thereto and substantially horizontally at the top of the chamber as viewed in FIG. 4 with its open end 62 opening at the inner surface of the layer 34.
  • the conduit 60 leads to suitable separator and disposal means described hereinafter.
  • the open end 62 of the conduit 60 is in the path of the residual combustible material and the noncombustible material which are at the outer region of the vortex and which have migrated to adjacent the end wall 24, and the action of the vortex causes such material to enter the open end 62 for discharge from the chamber 22.
  • the conduit 60 is shown in FIG. 4 as extending horizontally at the top of the chamber 22, it is understood that the conduit 60 may be disposed in any angular position about the axis of the chamber 22. For example, in certain installations it may be desirable to position the conduit 60 so that it extends vertically and downwardly.
  • conduit 60 may be replaced by a scoop positioned to receive material in the outer region of the vortex and connected to a conduit extending through the end wall 24.
  • means are provided to minimize the amount of such solid material which exits from the chamber 22 through the flue pipe 46.
  • such means comprises an extension of the flue pipe 46 into the chamber 22 so that the open end of the flue pipe 46 is spaced axially from the end wall 24.
  • the solid material which does not enter the conduit 60 tends to move from adjacent the end wall 24 along the outside diameter of the flue pipe 46 toward its open end. Such movement increases the time of residence of the material in the chamber 22 thus resulting in more complete combustion and a reduction in the amount of this material which enters the flue pipe as compared to the amount entering the flue pipe if its open end were flush with the end wall 24.
  • the invention provides a baffle 66 positioned adjacent the open end of the flue pipe 46 to divert outwardly toward the inner layer 34 of the chamber 22 residual combustible material and noncombustible material which move from adjacent the end wall 24 toward the open end of the flue pipe 46.
  • the arrangement is such that solid material moving in the direction of the arrows 64 engages the baffle 66 and is there by deflected in the direction of the arrow 67 so that the material so diverted once again becomes entrained in the vortex for further burning and movement toward the end wall 24 for discharge through the conduit 60. As shown in H6.
  • the baffle 66 preferably comprises a plate of any suitable material in the form of a ring releasably attached asby bolts 69 to another ring-shaped plate 70 which is welded or otherwise secured to the pipe 46 adjacent its open end.
  • the baffle 66 may overlie the open end of the flue pipe 46 and includes a central orifice 71 which has a diameter less then the inner diameter of the flue pipe 46.
  • the outside diameter of the baffle 66 and the diameter of its orifice 71 are selected to provide optimum performance for the conditions involved.
  • the baffle 66 may surround the pipe 46 adjacent its open end as shown in FIG. 3.
  • the detachable mounting of the flue 44 to the end wall 26 as previously described permits detachment of the flue'pipe 46 and the baffle 66 from the chamber 22 so as to permit replacement or repair of pipe 46 and baffle 66 as desired.
  • the present invention further provides a separator 72 which is effective for separating the gases and the solid material discharged through the conduit 60 and for dropping the solid material into a suitable container 74.
  • the separator 72 is preferably a commercially available cyclone or vortex-type separator wherein material discharged through the conduit 60 is introduced tangentially into the separator 72 with the result thatthe solid material drops out the open end of the separator 72 into the container 74.
  • Such solid material constitutes ashes and other particulate matter formed in the combustion process and also noncombustible material which can be disposed of in any suitable manner. While most of the residual combustible material and the noncombustible material are delivered to the separator 72, a small portion of such material settles to the bottom of the chamber 22. This settled material may periodically be removed from the chamber in any suitable manner.
  • the hot gases separated out by the separator 72 are introduced back into the chamber 22.
  • This is very advantageous in that it maintains the vortex within the chamber 22, further cleans such gases by removing residual fly ash, and dries out wet waste material within the chamber 22.
  • a conduit 76 extends coaxially into the separator 72 at the top thereof so that the hot gases separated by action of the separator 72 are drawn into the conduit 76 through the central low-pressure area and are conveyed through the conduit 76 to a fan 78-operated by a motor 80 to withdraw the separated hot gases from the conduit 76 and to introduce such into the chamber 22.
  • These gases are preferably introduced into the chamber 22 at an area downstream from the area of introduction of the secondary air.
  • the secondary air fan 40 may be employed instead of the fan 78 tointroduce the separated gases back into the chamber 22.
  • a very efficient incinerator characterized by the exhaust of gases to the atmosphere which are substantially free of particulate matter so as to minimize air and water pollution.
  • residual combustible material and noncombustible material are discharged from the combustion chamber during the burning process by action of the vortex so as to avoid the provision of costly and 'complex material-handling apparatus for conveying such material away from the combustion chamber.
  • the provision of costly and complex flue gas cleaning apparatus is avoided by the invention which allows operation of the incinerator at temperatures which are higher than that which would be allowable in the event flue gas cleaning apparatus were utilized.
  • the incinerator effects substantially complete combustion of combustible waste material resulting in an extremely high percentage reduction in the original volume of waste material.
  • a typical design of the incinerator of the present invention includes a combustion chamber having an internal length of 8 feet and an inner diameter of 454 feet.
  • the flue pipe 46 has an inner diameter of 4 feet and extends into the chamber a distance of about 16 inches from the inner surface of the wall 24.
  • the baffle plate 66 has a diameter of approximately 35 inches and its orifice 71 has a diameter of about 2 feet which is the same as the inner diameter of the flue pipe 46.
  • the conduit 60 has an inner diameter of 4 inches.
  • H0. 2 shows dimensions of the diameter of the orifice 71 and the inner diameter of the chamber 22 which are such that the ratio of the diameter of the orifice 71 to the inner diameter of the chamber 22 is about 0.3. Also, the corresponding dimensions shown in FIG. 3 provide a corresponding ratio of approximately 0.4.
  • the concept of providing predetermined ratios of the diameter of the open end of the discharge flue port 44 to the inner diameter of the chamber 22 is not our invention but is the joint invention of Norman R. Dibelius and William L. Zabriskie. I
  • I. An incinerator for burning waste material comprising in combination;
  • combustion chamber having spaced end walls and a combination; with its central longitudinal axis extending between said end walls,
  • a first discharge flue port having an open end opening in said chamber near said one end wall and substantially concentric with said central longitudinal axis
  • a second discharge port having an open end opening in said chamber near said one end wall and adjacent the inner surface of said sidewall for discharging from said chamber during the burning process residual combustible material and noncombustible material which are entrained in the outer region of the vortex, whereby essentially solid-free gases are discharged by said first port.
  • An incinerator as defined in claim 2 including a bafile adjacent the open end of said first port to divert outwardly toward said sidewall residual combustible material and noncombustible material which move from adjacent said one end wall toward the open end of said first port.
  • An incinerator as defined in claim 1 including means for separating the gases and the solid material discharged by said second port and for introducing said separated gases and any solid particles suspended therein back into said combustion chamber.
  • said means for separating includes a separator for receiving material discharged by said second port, a receptacle beneath said separator for receiving solid material separated by said separator, a conduit in said separator for receiving the gases separated by said separator, and a blower connected to said conduit for introducing said separated gases into said chamber.
  • An incinerator as defined in claim l including means for introducing secondary air into said chamber tangentially to said sidewall at an area downstream from the area of introduction of said waste material.
  • An incinerator for burning waste material comprising in combination;
  • combustion chamber having spaced end walls and a sidewall with its central longitudinal axis extending between said end walls
  • discharge flue means extending substantially coaxially of said central longitudinal axis through said one end wall and having an open end in said chamber spaced axially of said one end wall, and
  • a second discharge port extending through said sidewall tangentially thereto adjacent said one end wall for discharging from said chamber during the burning process residual combustible material and noncombustible material which are entrained in the outer region of the vortex, whereby essentially solid-free gases are discharged by said flue means.
  • An incinerator as defined in claim 8 including a baffle plate mounted on said flue means adjacent the open end thereof to divert outwardly toward said sidewall residual combustible material and noncombustible material which move from adjacent said one end wall toward the open end of said flue means.
  • bafile plate overlies the'open end of said flue means and includes an orifice having a diameter less than the diameter of the open end of said flue means, said baffle plate being removably mounted on said flue means.
  • An incinerator as defined in claim 8 including means for introducing secondary air into said chamber tangentially to said sidewall at an area adjacent the bottom of said chamber and downstream from the area of introduction of said waste material.
  • An incinerator as defined in claim 9 including connecting means detachably connecting said flue means to said one end wall, said connecting means being accessible from the exterior of said chamber to permit detachment of said flue means from said one end wall and withdrawal of said flue means and said baffle plate through said one end wall.
  • An incinerator as defined in claim 8 including means for separating the gases and the solid material discharged by said second discharge port and for introducing said separated gases and any solid particles suspended therein back into said combustion chamber.
  • An incinerator as defined in claim 13 wherein said means for separating includes a separator for receiving material discharged by said second port, a receptacle beneath said separator for receiving solid material separated by said separator, a conduit in said separator for receiving the gases separated by said separator, and a blower connected to said conduit for introducing said separated gases into said chamber.
  • An incinerator for burning waste material comprising in combination;
  • size-reducing means for receiving waste material and reducing it in size
  • blower means for drawing the size-reduced material from the size-reducing means and entraining it in an airstream
  • a generally cylindrical combustion chamber having spaced end walls and an annular sidewall, said chamber being disposed such that its central axis extends substantially horizontally,
  • discharge flue means extending substantially coaxially of said central axis through said one end wall and having an open end in said chamber spaced axially of said one end wall,
  • a second discharge port having an open end opening in said chamber at an area adjacent said one end wall and at the extremity of the inside diameter of said sidewall for discharging from said chamber during the burning process residual combustible material and noncombustible material which are entrained in the outer region of the vortex, and
  • baffle plate mounted on said flue means adjacent the open end thereof to divert outwardly toward said sidewall residual combustible material and noncombustible material which move from adjacent said one end wall toward the open end of said flue means, whereby essentially solid-free gases are discharged by said flue means.
  • baffle plate overlies the open end of said flue means and includes an orifice having a diameter less than the diameter of the open end of said flue means, said baffle plate being mounted for removal from said flue means.
  • An incinerator as defined in claim 15 including means for separating the gases and the solid material discharged by said second discharge means and for introducing said separated gases and any solid particles suspended therein back into said combustion chamber.
  • said means for separating includes a separator for receiving material discharged by second port, a receptacle beneath said separator for receiving solid material separated by said separator, a conduit in said separator for receiving the gases separated by said separator, and a blower connected to said conduit for introducing said separated gases into said chamber.
  • An incinerator for burning waste material comprising in combination;
  • combustion chamber having spaced end walls and a sidewall with its central longitudinal axis extending between said end walls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Combustion Of Fluid Fuel (AREA)
US869823A 1969-10-27 1969-10-27 Incinerator Expired - Lifetime US3577940A (en)

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US86982369A 1969-10-27 1969-10-27

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US (1) US3577940A (enExample)
JP (1) JPS4918952B1 (enExample)
CA (1) CA927206A (enExample)
DE (1) DE2051381A1 (enExample)
FR (1) FR2066596A5 (enExample)
GB (1) GB1270896A (enExample)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658017A (en) * 1971-01-04 1972-04-25 Gen Electric Incinerator
US3727563A (en) * 1971-07-02 1973-04-17 Gen Electric Incinerator
US3797413A (en) * 1973-04-23 1974-03-19 Gen Electric Incinerator
US3861330A (en) * 1974-03-13 1975-01-21 Trane Co Incinerator for aqueous waste material
JPS5043765A (enExample) * 1973-08-21 1975-04-19
JPS52153939U (enExample) * 1976-05-18 1977-11-22
US4335664A (en) * 1978-10-11 1982-06-22 Cemagref Method and apparatus for the thermal treatment of combustible material
JPS61107001A (ja) * 1984-10-29 1986-05-24 鈴木　豊次 蒸気発生と全燃焼装置
US5408942A (en) * 1993-08-06 1995-04-25 Young; Bob W. Combustion apparatus including pneumatically suspended combustion zone for waste material incineration and energy production
US5727482A (en) * 1996-06-19 1998-03-17 Young; Bob W. Suspended vortex-cyclone combustion zone for waste material incineration and energy production
US6216610B1 (en) 1998-04-17 2001-04-17 Andritz-Patentverwaltungs-Gesellschaft M.B.H. Process and device for incineration of particulate solids
US10920789B2 (en) * 2016-12-27 2021-02-16 Midea Group Co., Ltd. Fume exhaust assembly and fume exhaust device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757707A (en) * 1972-01-19 1973-09-11 Gen Electric Incinerator
DK168246B1 (da) * 1991-02-15 1994-02-28 Atlas Ind As Fremgangsmåde til afbrænding af biologisk affald

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614513A (en) * 1950-03-28 1952-10-21 Hofft Company Inc Method of and vortex-type furnace for burning waste fuel
US2917011A (en) * 1956-05-10 1959-12-15 Kohlenscheidungs Gmbh Apparatus and method for melting fly ash in a tangentially fired furnace chamber
US3453976A (en) * 1967-01-30 1969-07-08 Gen Incinerators Of California Method and apparatus for destroying bulk paper and other bulk materials
US3482533A (en) * 1968-06-28 1969-12-09 Borge Richard Ankersen Incinerators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614513A (en) * 1950-03-28 1952-10-21 Hofft Company Inc Method of and vortex-type furnace for burning waste fuel
US2917011A (en) * 1956-05-10 1959-12-15 Kohlenscheidungs Gmbh Apparatus and method for melting fly ash in a tangentially fired furnace chamber
US3453976A (en) * 1967-01-30 1969-07-08 Gen Incinerators Of California Method and apparatus for destroying bulk paper and other bulk materials
US3482533A (en) * 1968-06-28 1969-12-09 Borge Richard Ankersen Incinerators

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658017A (en) * 1971-01-04 1972-04-25 Gen Electric Incinerator
US3727563A (en) * 1971-07-02 1973-04-17 Gen Electric Incinerator
US3797413A (en) * 1973-04-23 1974-03-19 Gen Electric Incinerator
JPS5043765A (enExample) * 1973-08-21 1975-04-19
US3861330A (en) * 1974-03-13 1975-01-21 Trane Co Incinerator for aqueous waste material
JPS52153939U (enExample) * 1976-05-18 1977-11-22
US4335664A (en) * 1978-10-11 1982-06-22 Cemagref Method and apparatus for the thermal treatment of combustible material
JPS61107001A (ja) * 1984-10-29 1986-05-24 鈴木　豊次 蒸気発生と全燃焼装置
US5408942A (en) * 1993-08-06 1995-04-25 Young; Bob W. Combustion apparatus including pneumatically suspended combustion zone for waste material incineration and energy production
US5566625A (en) * 1993-08-06 1996-10-22 Young; Bob W. Combustion apparatus including pneumatically suspended combustion zone for waste material incineration and energy production
US5727482A (en) * 1996-06-19 1998-03-17 Young; Bob W. Suspended vortex-cyclone combustion zone for waste material incineration and energy production
US6216610B1 (en) 1998-04-17 2001-04-17 Andritz-Patentverwaltungs-Gesellschaft M.B.H. Process and device for incineration of particulate solids
US6401636B2 (en) 1998-04-17 2002-06-11 Andritz-Patentverwaltungs-Gesellschaft Mbh Process and device for incineration of particulate solids
US10920789B2 (en) * 2016-12-27 2021-02-16 Midea Group Co., Ltd. Fume exhaust assembly and fume exhaust device

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Publication number Publication date
FR2066596A5 (enExample) 1971-08-06
JPS4918952B1 (enExample) 1974-05-14
DE2051381A1 (de) 1971-04-29
GB1270896A (en) 1972-04-19
CA927206A (en) 1973-05-29

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