US3433186A - Rotary drum furnace for incinerating rubbish - Google Patents

Rotary drum furnace for incinerating rubbish Download PDF

Info

Publication number
US3433186A
US3433186A US660994A US3433186DA US3433186A US 3433186 A US3433186 A US 3433186A US 660994 A US660994 A US 660994A US 3433186D A US3433186D A US 3433186DA US 3433186 A US3433186 A US 3433186A
Authority
US
United States
Prior art keywords
rotary drum
furnace
drum
rubbish
housing
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
US660994A
Other languages
English (en)
Inventor
Walter Koecher
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.)
Fellner and Ziegler GmbH
Original Assignee
Fellner and Ziegler GmbH
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 Fellner and Ziegler GmbH filed Critical Fellner and Ziegler GmbH
Application granted granted Critical
Publication of US3433186A publication Critical patent/US3433186A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums

Definitions

  • the invention relates to incinerators or furnaces for burning rubbish or the like. More particularly the invention relates to a rotary drum or barrel furnace with a fioatingly journalled rotary drum or barrel that is provided with grate openings in the wall under which a supply housing is disposed which has outlet openings for air of combustion and has an intake and discharge aperture for rubbish or refuse opposite the bearing means of the drum or barrel and an igniting burner proximate the aperture.
  • the wall of the rotary drum is a frusto-conical wall which is enlarged in the direction of the input and discharge aperture with a ring at its wide end that extends conically in the opposite direction.
  • this ring has an outer flange by means of which the rotary drum is mounted for rotation by rollers in a frame that encompasses it at a distance. This frame is pivotable within limits about an axis which extends parallel to the plane of the input and discharge aperture.
  • the supply housing for the air of combustion is disposed in such a manner that the air flows through the grate openings of this wall into the interior of the rotary drum.
  • this problem is alleviated in that the wall of the rotary drum or barrel is shaped in a manner that during the progress of the combustion it can be tilted into a pivotal position where a desired amount of heating of the rotary drum is insured without influencing the supply of the air of combustion.
  • the spherical shape of the drum results in a particularly favorable exploitation of the heat radiation of the inner drum wall not covered by the rubbish, because the radiation is directed to the center of the calotte or cap due to this drum shape.
  • the invention provides also the further advantage that the distance of the supply housing from the drum wall remains the same for any position of tilt so that the air of combustion can be utilized to the fullest extent.
  • the space requirement of the spherical cap shape of the rotary drum is very small, so that the burning space of the rotary drum furnace can be held to small dimensions and the driving and journalling elements can be readily disposed externally of the combustion space.
  • the removal of the non-combustible parts of the rubbish by lowering the intake and discharge aperture is favored by the constant curving of the drum wall.
  • a further rubbish burning furnace known heretofore has a cone-shaped rotary drum, the narrow end of which has a perforated disk forming a discharge opening on which a solid disk is fastened by way of spacing bolts and which is concentrically disposed on the free end of a drive shaft.
  • the perforated disk can be closed with a lid by means of a manually operable threaded spindle drive.
  • the drive shaft is tiltably journalled externally of the furnace to permit righting the rotary drum from its oblique position of operation into the vertical discharging position. This tiltability of the rotary drum into vertical position, however, demands a relatively great width of the furnace.
  • the narrow discharge aperture tends toward clogging by bulky non-combustible rubbish.
  • a further known rubbish burning furnace which has the same discharging device but a nontiltable conically shaped rotary drum.
  • the furnace is of vertically split construction, and one of the furnace parts thus formed, together with the rotary drum, as well as its drive that is disposed externally of this furnace part, is removable from the other furnace part by means of a carriage carrying these parts. While this form of construction permits of decreasing the width of the furnace, there still exists the danger of clogging of the discharge opening by bulky components, and besides, the difliculty of having to move out of the displacement path of the rotary drum the air supply nozzle which is arranged at a small distance below the wall of the rotary drum.
  • the rotary drum furnace in accordance with the invention affords the advantage that the rotary drum, by virtue of its spherical calotte shape, requires little space in the furnace for its pivotal movement for the discharging, so that this space is so proportioned that merely the gases of combustion are allowed to flow freely; clogging of the discharge aperture cannot occur because the rotary drum is emptied through the intake or filling aperture, and finally, the movement of the rotary drum due to its spherical shape is not encumbered by the air supply housing, but this housing independently of the tilting movement of the rotary 3 drum is always spaced at the same distance from the wall of the drum.
  • FIG. 1 is a longitudinal central section of the rotatable barrel furnace and FIG. 2 is a section through a part of the furnace wall showing the bearing arrangement for the shackle.
  • a substantially rectangular or cubicular furnace 1 of fire clay is provided with a rotary barrel or drum 2, the mantle or housing 3 of which is in the form of a spherical cap or dome for incinerating rubbish or the like.
  • the housing 3 is provided with grate openings 4 in the form of slots or bores and has a relatively large intake and discharge aperture 5.
  • the rotary container 2 has a hub 6 which has secured in it a drive shaft 7.
  • the container 2 is journalled by means of this shaft 7 in the bridge or yoke 8 of the U-shapd brace or shackle 9 which is disposed around the outside of the furnace 1.
  • axle pins or studs 11 are secured to the free ends of the legs of the tilting frame 9, and each of them is journalled in one of two pivot supports or bearings 13 which are disposed in opposite walls 12 of the furnace 1 and the geometric axis of which extends through the center point of the spherical cap parallel to the plane of the input and discharge aperture 5.
  • a motor 14 for driving the shaft 7 is mounted on the yoke 8 of the tilting frame or shackle 9.
  • the tilting frame 9 can be raised or lowered with a hand wheel 16 fastened to a threaded spindle 15, one end of which is secured by means of a ball and joint plate a proximate the bottom of the furnace and the mid-portion of which extends through a threaded nut 9a mounted on the yoke '8 of the tilting frame 9, and in this manner the barrel can be turned about the axle provided by studs 11.
  • a supply housing 17 is disposed below the rotatable drum or barrel 2 to which combustion air is fed through an axially movable conduit 18, which is discharged through discharge openings 19. Furthermore an igniting burner 20 is arranged in front of the input and discharge aperture 5 in a manner that the igniting flame reaches into the rotatable barrel 2. Above the input and discharge opening 5 a supply tube 22 for the refuse or rubbish and a chimney 23 for discharging the gases of combustion extend through the top of the furnace.
  • a cyclone or blower may be provided into which the exhaust gases are tangentially fed and are conducted away by the immersion pipe or dip tube of the cyclone or blower, while the dust and ash particles carried along .4 by the waste gases are separated out by the centrifugal effect and drop to the furnace bottom.
  • combustible waste gases carbon oxide, methane
  • a furnace for burning rubbish comprising a housing, a rotatable container for rubbish supported in said housing, said container being of generally spherical shape and having perforations and presenting an aperture at one end serving simultaneously as intake and discharge aperture, support means engaging said container at a location opposite said aperture and drive means in engagement with said support means operative to rotate said container by way of said support means, a tilting frame or the like pivotally supported on said housing and carrying said drive means, said support means and said container operative to move said aperture of said container downwardly to discharging position, an air supply housing having a plurality of nozzles disposed below said container and an igniting burner disposed opposite said aperture.
  • said support means comprises a shaft extending externally of said housing, a brace supporting said shaft and having two legs each presenting an inwardly extending stud, said legs extending around opposite portions of said housing, said studs being pivotally supported in said opposite housing portions in axial alignment with one another and defining an axis extending centrally through said housing and container parallel to a plane in which said aperture is disposed and said container being movable about said axis in response to pivotal movement of said brace about said studs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
US660994A 1966-08-18 1967-08-16 Rotary drum furnace for incinerating rubbish Expired - Lifetime US3433186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0060050 1966-08-18

Publications (1)

Publication Number Publication Date
US3433186A true US3433186A (en) 1969-03-18

Family

ID=7229427

Family Applications (1)

Application Number Title Priority Date Filing Date
US660994A Expired - Lifetime US3433186A (en) 1966-08-18 1967-08-16 Rotary drum furnace for incinerating rubbish

Country Status (6)

Country Link
US (1) US3433186A (de)
BE (1) BE702725A (de)
DE (1) DE1526077C3 (de)
GB (1) GB1170548A (de)
NL (1) NL6710364A (de)
SE (1) SE341439B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577941A (en) * 1968-06-21 1971-05-11 Aqua-Chem Inc Incinerator
US3599581A (en) * 1969-05-20 1971-08-17 Fritz Schoppe Incinerator
US5299618A (en) * 1989-11-28 1994-04-05 Pio Fumagalli Method for recovering foundry sand by roasting
WO1997049951A1 (en) * 1996-06-25 1997-12-31 Swedish Bioburner System Aktiebolag Rotary burner for solid fuel
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI66075C (fi) * 1980-07-07 1984-08-10 Ilpo Autere Vaermepanna
US5005494A (en) * 1987-05-04 1991-04-09 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
US4770109A (en) * 1987-05-04 1988-09-13 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
US4861001A (en) * 1987-07-21 1989-08-29 Retech, Inc. Melting retort and method of melting materials
US4876971A (en) * 1988-08-29 1989-10-31 Oconnor Chadwell Water cooled incinerator
US5408494A (en) * 1993-07-28 1995-04-18 Retech, Inc. Material melting and incinerating reactor with improved cooling and electrical conduction
DE102004012900A1 (de) 2004-03-15 2005-10-06 Schoppe, Fritz, Dr.-Ing. Drehrost zur Verbrennung schlackebildender Brennstoffe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1835147A (en) * 1925-01-16 1931-12-08 William F Drew Garbage or refuse incinerator
DE1043037B (de) * 1955-10-05 1958-11-06 Union Carbide Corp Verfahren zum Herstellen von Schweissstaeben

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1835147A (en) * 1925-01-16 1931-12-08 William F Drew Garbage or refuse incinerator
DE1043037B (de) * 1955-10-05 1958-11-06 Union Carbide Corp Verfahren zum Herstellen von Schweissstaeben

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577941A (en) * 1968-06-21 1971-05-11 Aqua-Chem Inc Incinerator
US3599581A (en) * 1969-05-20 1971-08-17 Fritz Schoppe Incinerator
US5299618A (en) * 1989-11-28 1994-04-05 Pio Fumagalli Method for recovering foundry sand by roasting
WO1997049951A1 (en) * 1996-06-25 1997-12-31 Swedish Bioburner System Aktiebolag Rotary burner for solid fuel
US6164220A (en) * 1996-06-25 2000-12-26 Swedish Bioburner System Aktiebolag Rotary burner for solid fuel
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater

Also Published As

Publication number Publication date
NL6710364A (de) 1968-02-19
DE1526077A1 (de) 1970-02-12
BE702725A (de) 1968-01-15
GB1170548A (en) 1969-11-12
DE1526077B2 (de) 1975-04-30
DE1526077C3 (de) 1975-12-11
SE341439B (de) 1971-12-27

Similar Documents

Publication Publication Date Title
US3433186A (en) Rotary drum furnace for incinerating rubbish
US4785744A (en) Incinerator of urban wastes
US3834326A (en) Low pollution incineration of solid waste
US3599581A (en) Incinerator
US2869487A (en) Incinerators
JP2021505839A (ja) 乾燥ホッパおよびそのようなものを含む粉砕乾燥プラント
US3483832A (en) Apparatus for burning industrial wastes
US3125043A (en) Method of removing volatile constituents
US1776914A (en) Garbage incinerator
US3645218A (en) Solid waste incinerator
US4002127A (en) Cyclone structure
US3559597A (en) Incinerator
US3330050A (en) Grain dryer
US1728976A (en) Apparatus for pulverizing coal
JPS6118086B2 (de)
US753250A (en) Furnace
US3038482A (en) Dust handling apparatus
US789796A (en) Automatic fuel-feeding device.
US2070894A (en) Grate
US997381A (en) Rotary kiln.
US4394838A (en) Burning cell for solid waste fuel materials
US3670666A (en) Flow control and damping means
JP4404844B2 (ja) 固形燃料燃焼装置
US4867078A (en) Burner
US1232724A (en) Garbage-crematory.