US3913501A - Air supply for incinerator - Google Patents

Air supply for incinerator Download PDF

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Publication number
US3913501A
US3913501A US528530A US52853074A US3913501A US 3913501 A US3913501 A US 3913501A US 528530 A US528530 A US 528530A US 52853074 A US52853074 A US 52853074A US 3913501 A US3913501 A US 3913501A
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United States
Prior art keywords
air
combustion chamber
incinerator
combustion
waste material
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
US528530A
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English (en)
Inventor
Alex J Dahar
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.)
Enercon Systems Inc
Original Assignee
Air Preheater Co Inc
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 Air Preheater Co Inc filed Critical Air Preheater Co Inc
Priority to US528530A priority Critical patent/US3913501A/en
Application granted granted Critical
Publication of US3913501A publication Critical patent/US3913501A/en
Priority to JP14124675A priority patent/JPS533193B2/ja
Assigned to ENERCON SYSTEMS, INC. reassignment ENERCON SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AIR PREHEATER COMPANY, INC. THE
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
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage

Definitions

  • ABSTRACT [22] Filed: 1974 A gateless incinerator having an inlet for air required [21] APPL 528,530 for combustion of organic matter therein that includes V a plurality of vertically spaced ports. The ports are p0- sitioned at the lower portion of the incinerator in ver- US. Cl. R; A; B; ti ll Spaced l ti t h an i Supply t th t 110/ 75 R lies constantly adjacent the underside of the charge of [51] Int. Cl.
  • An incinerator for trash and other waste material that includes organic and inorganic matter having an air supply arrangement that controls combustion to preclude the temperature of ash from the burning trash from rising to the point where it volatizes the inorganic constituents thereof and produces haze forming gases.
  • This invention therefore, relates to an incinerator for trash, garbage, and other waste material having both organic and inorganic values wherein the organic matter thereof is effectively driven off as a combustible gas while the inorganic matter is prohibited from being excessively heated and vaporized. Therefore, the inorganic matter remains relatively cool and is not permitted to be vaporized so it may be exhausted to become the basis of a haze forming atmosphere.
  • FIG. 1 shows a sectional elevation of my invention
  • FIG. 2 shows a side view of my invention in section 1,
  • FIG. 3 shows a sectional elevation of the device having a system of automatic controls.
  • the reference numeral 12 defines a housing that encloses a pyrolyzing chamber 14.
  • the chamber 14 has a loading door 16 for loading a charge of waste material therein and an outlet opening 18 through which gases generated in chamber 14 are directed to an afterburner 20.
  • a duct 22 connected to the opening 18 directs the gas to afterburner 20 and to the stack 24 which in turn directs the exhaust gases to the atmosphere.
  • a source of air'for combustion is directed from fan 26 via duct 28 to a manifold 30 which supplies the air through vertically spaced apertured ducts 32 to the lower portion of chamber 14.
  • Each duct 32 is similarly sized and provided with a control valve 34 whereby air flow through a particular duct 32 may be terminated when it is determined that it lies beneath the current level of the residual ash that remains after reduction of the waste material in the pyrolyzing chamber.
  • a branch duct 38 having a control valve 37 supplies air as required to the afterburner 20.
  • valve 34A In operation a charge of waste material is inserted through the loading door 16 into combustion chamber 14. All valves 34 are normally closed; however, valve 34A is moved to an open position to admit air for pyrolysis from the source 26 through air supply duct 32A at the bottom of chamber 14, while ducts 32B, 32C, and 32D remain closed to the flow of combustion air.
  • air from apertured duct 32A combines with the burning waste and thence passes as the gas of pyrolysis to the exhaust opening 18 and the afterburner 20.
  • afterburner 20 pyrolyzed gas from chamber 14, together with auxiliary fuel from a source of supply 36 and combustion air from supply line 38 controlled by valve 40, provide complete combustion before being exhausted through stack 24 to the atmosphere as completely burned exhaust gas.
  • valve 34A As ash from the burning waste material settles to the bottom of chamber 14 and collects around and over elongate duct 32A, valve 34A is closed and valve 348 opened so that combustion air is permitted to be directed through valve 34B and duct 328 to the burning waste material and thence exhausted to the afterburner and the atmosphere.
  • Combustion air consequently, is no longer being forced to flow through the ash and other residual matter in the combustion chamber to increase its temperature and oxidize elements thereof.
  • Control valves 34 may be actuated manually by handwheels 38 in accordance with the depth of ash at the bottom of chamber 14 as seen by an operator when viewed through the open loading door 16. Otherwise, automatic control means 42 may be adapted to open and close the valves 34 in response to various conditions within the combustion chamber 14 brought about by the collection of residual matter at the bottom thereof in the manner shown by FIG. 3.
  • a control means 46 is responsive to thermocouples 48 in the chamber 14. As one of air supply ducts 32 becomes covered with ash, combustion air being forced out therefrom flows through the ash and burns out the residual carbon thereof to produce a blast-furnace ef fect that raises the temperature considerably.
  • the controller 46 is programmed to close the appropriate air supply valve 34 so that combustion at all residual carbon in the ash ceases. However, the supply of air to the duct 32 lying above the ash will continue so that pyrolyzation of waste in the space lying above the ash also will continue until it too is covered with ash.
  • combustion of residual carbon remaining in the ash is terminated and the ash cools while the air for pyrolyzation of the waste material in chamber 14 is supplied continuously along the bottom of charge where maximum burning effectiveness may be performed.
  • an incinerator may be used in locations heretofore denied because of the haze forming potential of the gases being exhausted therefrom.
  • An incinerator for the incineration of organic matter in a charge of waste material that contains organic and inorganic values comprising in combination a combustion chamber including a loading opening for the admission of waste material therein and an outlet opening for the exhaust of pyrolyzed gas therefrom, means for the collection of ash at the bottom of the combustion chamber, a source of air for combustion, means supplying combustion air from said source to the combustion chamber including a plurality of vertically spaced passageways at the lower portion of the combustion chamber, and means controlling air flow through each of said passageways whereby the flow of air may be curtailed through the passageways that lie subjacent the level of ashes at the bottom of the combustion chamber to thereby terminate combustion of residual matter in the ash and the volatilization of inorganic matter that produces a haze forming gas.
  • An incinerator for the incineration of organic matter in a charge of waste material that contains organic and inorganic values comprising in combination a combustion chamber having a loading opening for the admission of waste material therein and an outlet opening for the exhaust of pyrolyzed gas therefrom, an afterburner adapted to receive exhaust gases from said outlet opening, a source of combustion air, means supplying the combustion air to the combustion chamber and to the afterbumer, said means supplying combustion air to the combustion chamber, comprising duct means having a plurality of vertically spaced openings, and control means for the air flow through each of said openings whereby the flow of air therethrough may be limited to a predetermined opening to closely control the pyrolization of waste material in the combustion chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Air Supply (AREA)
US528530A 1974-11-29 1974-11-29 Air supply for incinerator Expired - Lifetime US3913501A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US528530A US3913501A (en) 1974-11-29 1974-11-29 Air supply for incinerator
JP14124675A JPS533193B2 (enrdf_load_stackoverflow) 1974-11-29 1975-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US528530A US3913501A (en) 1974-11-29 1974-11-29 Air supply for incinerator

Publications (1)

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US3913501A true US3913501A (en) 1975-10-21

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US528530A Expired - Lifetime US3913501A (en) 1974-11-29 1974-11-29 Air supply for incinerator

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US (1) US3913501A (enrdf_load_stackoverflow)
JP (1) JPS533193B2 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194488A (en) * 1978-09-27 1980-03-25 William W. Weaver Home heating system
US4285325A (en) * 1979-09-28 1981-08-25 William W. Weaver Balancing air device for a heating unit
US5816796A (en) * 1997-06-12 1998-10-06 The G. C. Broach Company Flue gas control
US5820362A (en) * 1997-06-12 1998-10-13 The G. C. Broach Company Fluid control
US6401632B1 (en) * 1995-01-17 2002-06-11 R & K Incinerator, Inc. Animal carcass incinerator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54135075U (enrdf_load_stackoverflow) * 1978-03-11 1979-09-19
JPS59125316A (ja) * 1982-12-29 1984-07-19 Netsushii Kogyo Kk 燃焼装置
JPH01157927U (enrdf_load_stackoverflow) * 1988-01-07 1989-10-31
JPH01179813A (ja) * 1988-01-09 1989-07-17 Daikichi Hajiki 廃タイヤ燃焼方法及びその装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483946A (en) * 1944-03-30 1949-10-04 Wurton Machine Company Undergrate air admission means for lateral feed solid fuel stokers
US3599609A (en) * 1969-09-05 1971-08-17 Charles L Wellons Oven for burning waste wood products
US3664277A (en) * 1970-07-31 1972-05-23 Carborundum Co On-site incinerator
US3678870A (en) * 1971-05-20 1972-07-25 Air Preheater Sludge burner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483946A (en) * 1944-03-30 1949-10-04 Wurton Machine Company Undergrate air admission means for lateral feed solid fuel stokers
US3599609A (en) * 1969-09-05 1971-08-17 Charles L Wellons Oven for burning waste wood products
US3664277A (en) * 1970-07-31 1972-05-23 Carborundum Co On-site incinerator
US3678870A (en) * 1971-05-20 1972-07-25 Air Preheater Sludge burner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194488A (en) * 1978-09-27 1980-03-25 William W. Weaver Home heating system
US4285325A (en) * 1979-09-28 1981-08-25 William W. Weaver Balancing air device for a heating unit
US6401632B1 (en) * 1995-01-17 2002-06-11 R & K Incinerator, Inc. Animal carcass incinerator
US5816796A (en) * 1997-06-12 1998-10-06 The G. C. Broach Company Flue gas control
US5820362A (en) * 1997-06-12 1998-10-13 The G. C. Broach Company Fluid control

Also Published As

Publication number Publication date
JPS5178076A (enrdf_load_stackoverflow) 1976-07-07
JPS533193B2 (enrdf_load_stackoverflow) 1978-02-03

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