US3417716A - Method for the combustion of waste materials, particularly refuse - Google Patents

Method for the combustion of waste materials, particularly refuse Download PDF

Info

Publication number
US3417716A
US3417716A US469104A US46910465A US3417716A US 3417716 A US3417716 A US 3417716A US 469104 A US469104 A US 469104A US 46910465 A US46910465 A US 46910465A US 3417716 A US3417716 A US 3417716A
Authority
US
United States
Prior art keywords
combustion
air
furnace
oxygen
residues
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
US469104A
Other languages
English (en)
Inventor
Iacobovici Theodore
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.)
Von Roll AG
Original Assignee
Von Roll AG
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 Von Roll AG filed Critical Von Roll AG
Priority to US655629A priority Critical patent/US3417717A/en
Application granted granted Critical
Publication of US3417716A publication Critical patent/US3417716A/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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/20—Combustion to temperatures melting waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07005—Injecting pure oxygen or oxygen enriched air
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • a further considerable object of this invention is directed to an improved method of the elfective combustion of waste materials of all types containin combustible and normally non-combustible components, in which the flue gases resulting from combustion are relatively dust-free, and the waste materials undergoing combustion are considerably completely burned, so that the resulting residues from combustion have economic value and can be employed as a useful product.
  • Another object of this invention relates to an improved method of the very effective and reliable combustion of waste materials of all types containing combustible and normally non-combustible components, wherein the furnace possesses increased thermal efliciency, the throughput of materials through the furnace is considerably improved, the combustion process results in a more complete combustion of the materials, and a cleaner flue gas is ejected into the atmosphere.
  • one important aspect of the present invention is directed to an improved method for the combustion of waste materials of all types containing combustible and normally non-combustible components, particularly refuse.
  • Characteristic of the inventive method is that the combustion air is enriched with oxygen and thus a combustion compartment temperature is reached and maintained which is above the melting point of the residues of combustion.
  • a suitable apparatus 1 for comminution of the waste material e.g. refuse is provided with an infeed or filling funnel 1a.
  • This comminuting apparatus 1 communicates via a delivery device 2 with a waste materialsupport means or receptacle, here shown as a pan 3 stationarily arranged in the forward portion 12a of a combustion furnace 12.
  • this delivery device 2 is constructed as an infeed chute 2a.
  • the supporting pan or vat 3 is provided with a trough 3a formed by a lining of refractory material, and serving as gas impervious support means for the material to be burned. Additionally, the trough 3a incorporates an overflow edge 3b for the removal of the liquid slag collecting in trough 3n.
  • an air pre-heater 5 In a rear flue 13 of the furnace 12 there is arranged an air pre-heater 5.
  • the air heated in this air pre-heater 5, and serving as combustion air for combustion of the refuse in the furnace 12, is delivered via a conduit 14 to the forward region 12a of the furnace 12.
  • This heated air is delivered to the forward furnace region 12a it is enriched with oxygen obtained in a suitable oxygen generating installation 4 and delivered via a short conduit 15 into the hot-air conduit 14.
  • the hot combustion air enriched with oxygen is blown into the combustion chamber or compartment 30 of the furnace 12 through the agency of injection nozzles 6 mounted to a nozzle box or housing 16.
  • the injected air is introduced at sufficiently high pressure so that the air jets emanating from these nozzles 6 reach the pan 3 and the material to be burned located in the trough 3a thereof and, thus, impinge such material.
  • a high-pressure blower 11 is conveniently connected to the conduit 14 for the combustion air in front of the nozzle housing 16 in the flow direction of such air and behind the point of connection of the oxygen conduit 15 with the hot-air conduit 14.
  • a discharge shaft 7 communicates with the pan or vat 3 and delivers the liquid slag, overflowing the molten bath in the trough 3a and overrunning the overflow edge 31;, into a granulation vessel 8 filled with water.
  • An immersion tube or stud 17 is arranged at the lower end of the discharge shaft 7 and immerses somewhat into the water bath of the granulation vessel 8, thus ensuring that no cold air can infiltrate in undesired manner from beneath via the discharge shaft 7 into the interior of the furnace 12.
  • the path of the flue gases resulting from combustion of the refuse or otherwise through the furnace 12 is indicated in the drawing by arrows A.
  • the combustion or flue gases generated in the combustion compartment or chamber 3c flow through the furnace 12 along the path represented by the arrows A, and initially flow through an uptake flue 18 and thereafter through the already mentioned rear flue 13, constructed as downtake flue.
  • the downtake flue 13 is separated from the uptake flue 18 by a vertical, intermediate wall 19 which near its top 19a forms together with the housing of the furnace 12 a throughfiow opening 20.
  • Heating surfaces 9 and 9 of a waste-heat boiler are arranged in the uptake flue 18 and downtake flue 13, respectively.
  • the flue gases After passing the air pre-heater the flue gases arrive via a waste-gas stud 21 into a combined de-dusting and suction device 10, then escape into the open or surrounding atmosphere via a pipe a which, as the case may be, can be constructed as a sheet metal chimney possessing appropriate height.
  • a pipe a which, as the case may be, can be constructed as a sheet metal chimney possessing appropriate height.
  • a funnel-shaped ash discharge 13a by means of which larger ash particles can be removed. Finer ash and dust particles are first separated from the flue gases in the de-dusting installation 10 and leave this de-duster 10 via an outlet stud 10b.
  • the material to be burned introduced via the delivery device 2 into the furnace 12 arrives at the receptacle or support pan 3 and in the trough 3a where it ignites and burns. Due to the combustion air enriched with oxygen and injected by means of the nozzles 6 there is obtained and maintained a combustion chamber temperature which is above the melting point of the residues of combustion, so that the resulting residues of combustion, i.e. slag, are melted and liquefied and there forms in the trough 3a a molten bath 3d of higher temperature. This molten bath 3d replenishes itself continually, since the pan 3 at its forward region has delivered thereto new material to be burned whereas liquid slag is fimoved from this pan 3 at the rear via the overflow edge 31;.
  • the flue gases resulting from combustion of the refuse possess a temperature of 1500 C. to 1600 C. and are guided through the heating surfaces 9, 9 of the wasteheat boiler and then through the air pre-heater 5, whereby they deliver with countercurrent flow their sensible heat while cooling down to about 350 C.
  • the air pre-heater 5 must possess a suitable construction, i.e. possibly constructed as ceramic regenerative air pre-heater, in order to heat up the necessary combustion air from about 50 C to about 500 C., so that after its admixing with the delivered oxygen an average temperature of the enriched combustion air of approximately 400 C. results. So as to make possible heating of the air to about 500 C., of course the temperature of the flue gases entering the pre-heater 5 must lie considerably above 500 C. and the terminal portion of the air preheater can be arranged in the flue gas stream at a location where such flue gases possess sufliciently high temperature.
  • pan 3 with its trough 3a stationarily mounted in the furnace 12 it would also be possible to pivotably mount such within the furnace, whereby there is achieved an intensive mixing and acceleration of the slag melting process.
  • a method for the incineration of waste material of all types containing combustible and normally noncombustible components, and concomitant smelting of its residues comprising the steps of: preheating the combustion air, enriching said combustion air with oxygen, continually feeding raw waste material directly into a receptacle in a combustion chamber, burning said waste material in said combustion chamber in the presence of said preheated and oxygen-enriched combustion air in the absence of additional fuel, supplying said preheated and oxygen-enriched combustion air in an amount sufficient to attain and maintain a temperature in said combustion chamber which is above the smelting point of the residues of combustion resulting from said noncombustible components to thereby concomitantly smelt the residues of combustion within the combustion chamber, and collecting the smelted residues in said receptacle.
  • a method for the incineration of waste material of all types containing combustible and normally noncombustible components, and concomitant smelting of its residues according to claim 1, further including the step of enriching said combustion air with oxygen to a total oxygen content of at least about 35% oxygen.
  • a method for the incineration of waste material of all types containing combustible and normally noncombustible components, and concomitant smelting of its residues according to claim 1, further including the step of preheating said combustion air before enriching the same with oxygen such that said oxygen-enriched combustion air has an average temperature of about 400 C.
  • Method for the combustion of Waste materials of all types containing combustible and normally noncombustible components, and concomitant smelting of its residues further including the steps of introducing the oxygen-enriched combustion air under pressure into said combustion chamber, selecting the pressure at which the oxygen-enriched combustion air is introduced sufficiently high that said combustion air 10 reaches and impinges against the Waste material located upon the receptacle, and continually Withdrawing from the receptacle the smelted residues of combustion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
US469104A 1964-07-08 1965-07-02 Method for the combustion of waste materials, particularly refuse Expired - Lifetime US3417716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US655629A US3417717A (en) 1965-07-02 1967-07-24 Furnace for the combustion of waste materials, particularly refuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH895464A CH411198A (de) 1964-07-08 1964-07-08 Verfahren zur Verbrennung von Abfallstoffen, insbesondere Müll, sowie Ofen zur Durchführung dieses Verfahrens

Publications (1)

Publication Number Publication Date
US3417716A true US3417716A (en) 1968-12-24

Family

ID=4346692

Family Applications (1)

Application Number Title Priority Date Filing Date
US469104A Expired - Lifetime US3417716A (en) 1964-07-08 1965-07-02 Method for the combustion of waste materials, particularly refuse

Country Status (9)

Country Link
US (1) US3417716A (de)
AT (1) AT259743B (de)
BE (1) BE666371A (de)
CH (1) CH411198A (de)
DK (1) DK111911B (de)
FI (1) FI44026B (de)
GB (1) GB1093590A (de)
LU (1) LU48986A1 (de)
NL (1) NL6508643A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5924368A (en) * 1996-08-05 1999-07-20 Fusoh Co., Ltd. Waste treatment furnace
US6136063A (en) * 1998-03-03 2000-10-24 Clemson University Process for separating hazardous metals from waste materials during vitrification

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291636A (en) * 1980-05-29 1981-09-29 Union Carbide Corporation Solid refuse disposal process
DE3101244A1 (de) * 1981-01-16 1982-08-26 Von Roll AG, 4563 Gerlafingen Kombinierter verbrennungs- und schmelzofen fuer feste, teigige und fluessige abfallstoffe
DE3444073A1 (de) * 1984-12-03 1986-06-05 Dyckerhoff Engineering GmbH, 6200 Wiesbaden Verfahren und anlage zum verbrennen von abfaellen wie haus-, industrie- und sondermuell
DE3920760A1 (de) * 1989-06-24 1991-01-03 Kloeckner Humboldt Deutz Ag Verfahren zur thermischen entsorgung von abfallstoffen bzw. reststoffen wie z.b. aschen, klaerschlamm oder dergleichen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580656A (en) * 1924-01-24 1926-04-13 Coninck Marcel De Process and apparatus relating to the combustion of solid fuel
US1833386A (en) * 1930-03-15 1931-11-24 Champion Fibre Company Smelting apparatus
US2071835A (en) * 1934-08-27 1937-02-23 Firm Gutehoffnungshutte Oberha Process and apparatus for treating residue, waste, and the like
US2537467A (en) * 1946-05-28 1951-01-09 Komline Sanderson Eng Corp Apparatus for burning waste material
US2764109A (en) * 1953-11-30 1956-09-25 Aristid V Grosse Method for combustion of metals
US2865344A (en) * 1955-06-21 1958-12-23 Combustion Eng Apparatus and method for heating steam
US2893333A (en) * 1957-10-29 1959-07-07 Brunes Bengt Torsten Method of firing steam generators with evaporated sulphite waste liquor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580656A (en) * 1924-01-24 1926-04-13 Coninck Marcel De Process and apparatus relating to the combustion of solid fuel
US1833386A (en) * 1930-03-15 1931-11-24 Champion Fibre Company Smelting apparatus
US2071835A (en) * 1934-08-27 1937-02-23 Firm Gutehoffnungshutte Oberha Process and apparatus for treating residue, waste, and the like
US2537467A (en) * 1946-05-28 1951-01-09 Komline Sanderson Eng Corp Apparatus for burning waste material
US2764109A (en) * 1953-11-30 1956-09-25 Aristid V Grosse Method for combustion of metals
US2865344A (en) * 1955-06-21 1958-12-23 Combustion Eng Apparatus and method for heating steam
US2893333A (en) * 1957-10-29 1959-07-07 Brunes Bengt Torsten Method of firing steam generators with evaporated sulphite waste liquor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5924368A (en) * 1996-08-05 1999-07-20 Fusoh Co., Ltd. Waste treatment furnace
US6136063A (en) * 1998-03-03 2000-10-24 Clemson University Process for separating hazardous metals from waste materials during vitrification

Also Published As

Publication number Publication date
CH411198A (de) 1966-04-15
GB1093590A (en) 1967-12-06
BE666371A (de) 1965-11-03
DK111911B (da) 1968-10-21
FI44026B (de) 1971-04-30
NL6508643A (de) 1966-01-10
LU48986A1 (de) 1965-09-06
AT259743B (de) 1968-01-25

Similar Documents

Publication Publication Date Title
US4561363A (en) Method and chamber for combustion of effluent gases from the pyrolysis of combustible material
SK12912002A3 (sk) Reaktor a spôsob splynenia a/alebo tavenia látok
US3417717A (en) Furnace for the combustion of waste materials, particularly refuse
KR890004291B1 (ko) 고철 금속으로 부터 금속을 재생시키는 방법 및 장치
US1973697A (en) High temperature incinerator furnace
US3745941A (en) Slagging refuse incinerators
US3417716A (en) Method for the combustion of waste materials, particularly refuse
US3747542A (en) Method and device for the treatment of refuse
JPH10246416A (ja) 火格子燃焼設備に由来するフライダストを熱的に処理するための方法と装置
US2033685A (en) Boiler furnace
JP3010512B2 (ja) 焼却方法および装置
US3064593A (en) Ignition torch on mixed refuse incinerators
EP1227278A2 (de) Müllverbrennungsanlage
US1061469A (en) Method of treating pulverulent substances.
EP0536268A1 (de) Verfahren und vorrichtung zum verbrennen von feststoffabfällen und möglicherweise flüssigen abfällen verschiedener art.
US3568612A (en) Combustion chamber
US5836258A (en) Method and apparatus for incinerating waste material using oxygen injection
US3334599A (en) Furnace for burning bulky fuels, especially refuse, and improved method for operating the aforesaid furnace
US3572265A (en) Plastic burner
US4058069A (en) Process and apparatus for incinerating substances in a fluidized thermal reaction furnace
RU2265774C1 (ru) Способ переработки твердых бытовых, промышленных и медицинских отходов и установка для его осуществления
US1349971A (en) Furnace
RU2147103C1 (ru) Способ ступенчатой газификации и сжигания твердого топлива в аэрошлаковом расплаве
CN115715315A (zh) 用于分离废料的方法和工业设施
US3888632A (en) Combustion chamber