US3799075A - Hot ash dump - Google Patents

Hot ash dump Download PDF

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Publication number
US3799075A
US3799075A US00324025A US32402573A US3799075A US 3799075 A US3799075 A US 3799075A US 00324025 A US00324025 A US 00324025A US 32402573 A US32402573 A US 32402573A US 3799075 A US3799075 A US 3799075A
Authority
US
United States
Prior art keywords
chamber
ash
afterburner
pyrolyzing
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
US00324025A
Other languages
English (en)
Inventor
N Hazzard
L Lavely
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 US00324025A priority Critical patent/US3799075A/en
Priority to CA189,526A priority patent/CA998882A/en
Priority to ES1974199457U priority patent/ES199457Y/es
Priority to AU64466/74A priority patent/AU6446674A/en
Priority to JP666374A priority patent/JPS5315309B2/ja
Application granted granted Critical
Publication of US3799075A publication Critical patent/US3799075A/en
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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion

Definitions

  • Ash including unburned combustible matter is dropped from the pyrolyzation chamber through the opened closure means to the ash discharge chamber subjacent thereto where smoke, fumes, dust, and other matter generated by the incompletely burned residual matter and the agitated ash are returned through a controlled passageway to the afterburner whereby they are again subjected to conditions of combustion before being directed to an exhaust duct.
  • the invention relates to a device for the incineration of trash, waste material and other combustible refuse.
  • the device includes an incinerator having an enclosed primary combustion or pyrolyzing chamber, a subjacent ash receiving chamber, and an afterburner.
  • the ash receiving chamber is enclosed except for an ash removal door and an exhaust port that is connected back to the afterburner whereby smoke, ash, dust and gaseous material generated in the ash receiving chamber is subjected to conditions of incineration therein before it is exhausted to the atmosphere.
  • the incinerator comprises a housing including a grateless pyrolyzing chamber in which waste matter therein may be subjected to pyrolyzation.
  • an afterburner that is connected to the housing exhaust to burn the gases generated in the pyrolyzing chamber.
  • Pyrolyzation or burning of waste is usually a slow process and it has been found that a complete burning cycle for a given charge of waste may require from six to eight hours for completion, although approximately 90 percent of the waste charge is burned in the first hour of operation and only percent burned in the final five to seven hours. Threfore, it may be seen that most of the time required for the complete pyrolyzing or burning of a mass of waste material is required to burn but a small part of the material while by far the largest portion of the waste is burned during the first moments of operatron.
  • the present invention therefore relates to a means for the disposal of organic waste having a grateless pyrolyzing chamber that exhausts to an afterburner, and a subjacent ash receiving chamber with a duct connected to the afterburner and having a movable closure.
  • Waste material is for a short time held in the pyrolyzing chamber where it is subjected to the temperature of pyrolyzation and thereby reduced to but a small fraction of its original volume.
  • Ash and unburned residual matter from the freshly pyrolyzed material is then dropped from the pyrolyzing chamber through the closure to the ash receiving chamber where combustion continues and the combustible matter continues to smoke and smolder. Residual gas and smoke generated by the incompletely burned residue in the ash receiving chamber is continuously ducted back into the afterburner where final combustion is effected and residual gases free from combustible matter may be exhausted to the atmosphere.
  • FIG- URE is a sectional elevation of my invention.
  • the reference number 10 describes a housing enclosing a pyrolyzing chamber 12 having an access door 14 for a load of waste material and an outlet opening 16 for the exhaust of gaseous products from the pyrolyzing chamber.
  • a duct 18 Connected to the outlet opening 16 is a duct 18 that encloses afterburner 22 and exhausts gases therefrom through a stack 24 to the atmosphere.
  • a source of air 26 is ducted through 28 to the pyrolyzing chamber 12 and through supply line 32 to the afterburner 22 having control valves 30 and 33 whereby gases generated in chamber 12 may be provided with the controlled amount of air necessary for pyrolyzation at chamber 22.
  • a source of fuel is provided to the afterburner through supply line 34 having control valve 57 whereby temperatures threin may be maintained at from l,200 F. to 2,000 F. and through supply line 55 and valve 50 to chamber 12.
  • the valves 50 and 57 may be manually controlled in a manner that is now disclosed by previous U.S. Pat. No. 3,491,707.
  • the bottom of pyrolyzing chamber 12 has a movable closure 36 that comprises a single or multiple door arrangement that effectively isolates pyrolyzing chamber 12 from subjacent ash receiving chamber 38.
  • the movable closure is provided with a suitable arrangement such as hydraulic actuator 42 pivotally attached at 49 to the extension on a closure 36 whereby the application of pressure fluid to the actuator will move the bottom of the chamber 12 to an open position so that residual material thereon will be dropped to the subjacent ash receiving chamber 38.
  • a suitable arrangement such as hydraulic actuator 42 pivotally attached at 49 to the extension on a closure 36 whereby the application of pressure fluid to the actuator will move the bottom of the chamber 12 to an open position so that residual material thereon will be dropped to the subjacent ash receiving chamber 38.
  • organic waste material is loaded into the incinerator chamber 12 through loading door 14. Ignition is started therein by a suitable method such as simply opening fuel valve 50 and applying a lighted match to the flowing gas. A flow of air from source 26 is controlled by opening valve 30 as required to provide sufficient air for pyrolyzation. As the organic material in the incinerator burns the gas and smoke generated in chamber 12 is exhausted through port 16 into the afterburner 22.
  • the incompletely burned residual material that has descended into the chamber 38 now at about 10 percent of its original volume continues to smolder and smoke and be vented through by-pass duct 44 to the afterburner chamber 22 where it is mixed with fuel from source 34 and air from source 26 whereby it is brought to a high temperature of from 1,200 F. to 2,000 F. that consumes the combustible gases and exhausts the inert gases into the atmosphere.
  • Ash cleanout door 43 in the ash receiving chamber permits the accumulation of ashes to be removed therefrom.
  • An incinerator for burning combustible waste material therein that comprises a pyrolyzing chamber having a loading opening for the admission of waste material and an oulet opening for the exhaust of gases generated therein, an outlet stack including an afterburner chamber, fuel and air supply means in the pyrolyzing chamber, a passageway connecting the outlet from the pyrolyzing chamber to the afterburner chamber, an ash receiving chamber subjacent the pyrolyzing chamber, an ash clean-out door in said ash receiving chamber, movable closure means separating the pyrolyzing chamber from the ash receiving chamber, means for actuating the movable closure means, and duct means connecting the ash receiving chamber to the afterburner chamber whereby gas and smoke generated in the ash receiving chamber is directed into the afterburner chamber and subjected to complete incineration before it is exhausted to the outlet stack.
  • An incinerator for burning combustible waste material as defined in claim 1 having valve means in the duct that connects the ash receiving chamber to the afterburner chamber whereby said valve may be closed when the ash clean-out door is opened to remove ash therefrom.
  • An incinerator for burning combustible waste material as defined in claim 2 including air and fuel supply means connected to the pyrolyzing chamber and to the afterburner chamber, and valve means controlling the air and fuel supply to provide controlled combustion conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
US00324025A 1973-01-16 1973-01-16 Hot ash dump Expired - Lifetime US3799075A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US00324025A US3799075A (en) 1973-01-16 1973-01-16 Hot ash dump
CA189,526A CA998882A (en) 1973-01-16 1974-01-07 Hot ash dump
ES1974199457U ES199457Y (es) 1973-01-16 1974-01-12 Horno de incineracion para cenizas calientes perfeccionado.
AU64466/74A AU6446674A (en) 1973-01-16 1974-01-14 Hot ash dump
JP666374A JPS5315309B2 (es) 1973-01-16 1974-01-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00324025A US3799075A (en) 1973-01-16 1973-01-16 Hot ash dump

Publications (1)

Publication Number Publication Date
US3799075A true US3799075A (en) 1974-03-26

Family

ID=23261750

Family Applications (1)

Application Number Title Priority Date Filing Date
US00324025A Expired - Lifetime US3799075A (en) 1973-01-16 1973-01-16 Hot ash dump

Country Status (5)

Country Link
US (1) US3799075A (es)
JP (1) JPS5315309B2 (es)
AU (1) AU6446674A (es)
CA (1) CA998882A (es)
ES (1) ES199457Y (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123979A (en) * 1977-06-13 1978-11-07 Allen Tesch Incinerator
US5129334A (en) * 1991-03-13 1992-07-14 Astec Industries, Inc. Aggregate dryer and soil incinerator having low NOx emissions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794613U (es) * 1980-11-28 1982-06-10

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759042A (en) * 1926-11-20 1930-05-20 Carie Felix O De Incinerator
US1776914A (en) * 1928-04-25 1930-09-30 Adrian E Langford Garbage incinerator
US3043248A (en) * 1958-07-28 1962-07-10 Locke Stove Company Incinerator
US3303798A (en) * 1964-04-22 1967-02-14 Signal Oil & Gas Co Refuse incinerating process and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759042A (en) * 1926-11-20 1930-05-20 Carie Felix O De Incinerator
US1776914A (en) * 1928-04-25 1930-09-30 Adrian E Langford Garbage incinerator
US3043248A (en) * 1958-07-28 1962-07-10 Locke Stove Company Incinerator
US3303798A (en) * 1964-04-22 1967-02-14 Signal Oil & Gas Co Refuse incinerating process and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123979A (en) * 1977-06-13 1978-11-07 Allen Tesch Incinerator
US5129334A (en) * 1991-03-13 1992-07-14 Astec Industries, Inc. Aggregate dryer and soil incinerator having low NOx emissions

Also Published As

Publication number Publication date
AU6446674A (en) 1975-07-17
CA998882A (en) 1976-10-26
ES199457U (es) 1975-01-16
JPS5315309B2 (es) 1978-05-24
JPS49103479A (es) 1974-09-30
ES199457Y (es) 1976-06-16

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