US3704676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sludge incinerator
Assignee: KANTING OILFIELD SERVICES Ltd
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Filing: 1971-09-13
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Granted: 1972-12-05
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Expires: 1991-09-13
Abstract
Abstract Method and apparatus for disposing of unwanted fluids having combustible constituents, such as petroleum wastes commonly collected in pits in oilfield operations. A screen or sheet of high velocity air is directed across an open-topped chamber of an incinerator, the air forming the sheet being directed downwardly at an angle relative to the horizontal so that it enters a combustion zone beneath the sheet. A mixture of air and waste is sprayed into the combustion zone from the same side as air which is supplied to form the sheet and in a direction substantially parallel to the direction of the travel of air in the sheet.
Inventors
- 👤 Walter J Davies
- 👤 Barry Hatton
- 👤 George C Boyd
- 👤 Harvey E W Hanlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
An incinerator for the burning of fluid wastes having combustible constituents, said incinerator comprising an opentopped chamber defining a combustion zone therein, air supply means for feeding air into said chamber, said air supply means being disposed for feeding a sheet of high velocity air over said combustion zone in a flow direction inclined downwardly from the top of one side of said chamber, and waste supply means for blowing an air-waste mixture into said combustion zone below said air supply means in a direction substantially parallel to the direction of travel of said sheet of air.
Claim 2
Dependent Claim
97 words
An incinerator for the burning of fluid wastes having combustible constituents, said incinerator comprising an opentopped chamber defining a combustion zone therein, air supply means for feeding air into said chamber, said air supply means being disposed for feeding a sheet of high velocity air over said combustion zone in a flow direction inclined downwardly from the top of one side of said chamber, and waste supply means for blowing an air-waste mixture into said combustion zone below said air supply means in a direction substantially parallel to the direction of travel of said sheet of air.
Claim 3
Dependent Claim
47 words
An incinerator as defined in claim 1, wherein said chamber is formed by a box-like Structure including four side walls and a bottom wall, said air supply means including an elongated manifold member extending substantially parallel to and above an upper edge one of said side walls.
Claim 4
Dependent Claim
32 words
An incinerator as defined in claim 2, wherein said one side wall has an opening below said manifold member, and wherein said waste supply means includes a nozzle means projecting said opening.
Claim 5
Dependent Claim
49 words
An incinerator as defined in claim 3, wherein said manifold member has a series of closely spaced nozzles thereon, said series extending substantially the length of said one side wall, said nozzles projecting downwardly at an angle to the horizontal for forming the inclined sheet of high velocity air.
Claim 6
Dependent Claim
25 words
An incinerator as defined in claim 4, wherein said plurality of nozzles and said nozzle means projects towards said combustion chamber in substantially parallel relationship.
Claim 7
Dependent Claim
30 words
An incinerator as defined in claim 4, wherein said plurality of nozzles and said nozzle means project towards said combustion chamber at an angle substantially 30* relative to the horizontal.
Claim 8
Dependent Claim
24 words
An incinerator as defined in claim 1, wherein said waste supply means includes a nozzle means projecting into said chamber towards said combustion zone.
Claim 9
Dependent Claim
84 words
An incinerator as defined in claim 3, wherein said nozzle means includes an outer casing terminating in an injector nozzle outlet, an inner waste supply pipe disposed within said casing and having an open end terminating short of said injector nozzle outlet, said outer casing and inner pipe defining an air passage therebetween, wherein means is provided for supplying pressurized air to said passage, and wherein means is provided for feeding fluid waste to said pipe to be discharged through said open end thereof.
Claim 10
Dependent Claim
77 words
An incinerator as defined in claim 7, wherein said nozzle means includes an outer casing having a restricted portion terminating in a nozzle outlet at one end, an inner casing providing a waste supply passage therethrough and being concentrically disposed within said outer casing, and inner and outer casing defining an air supply passage therebetween, said inner casing terminating inwardly of said restricted nozzle outlet whereby mixing of air and waste is achieved within said restricted portion.
Claim 11
Dependent Claim
47 words
An incinerator as defined in claim 9, wherein said inner and outer casings are of circular cross-section whereby said air supply passage is of annular cross-section, and wherein said outer casing is flattened at one end to form said restricted portion and an elongated slot-like nozzle outlet.
Claim 12
Dependent Claim
67 words
An incinerator as defined in claim 2, wherein the side wall opposite said one wall is of less depth than said one wall whereby the lower edge thereof is located above said bottom wall, and further comprising an oblique wall section extending from said lower edge to said bottom wall, said oblique wall section providing a bevelled lower corner opposite said air and air-waste mixture supply means.
Claim 13
Dependent Claim
27 words
An incinerator as defined in claim 2, wherein said walls are each prefabricated units and include securing means for holding said box-like structure in an erected condition.
Claim 14
Dependent Claim
49 words
An incinerator as defined in claim 12, wherein each wall unit includes a metal plate member having inside and outside surfaces, a network of reinforcing members secured to said outside surface, a rigid insulating material overlying said inside surface, and a layer of refractory material covering said insulating material.
Claim 15
Dependent Claim
47 words
An incinerator as defined in claim 13, and further including tie members secured to said inside surface of said plate member and projecting therefrom, said tie members extending into said insulating material and refractory layer for anchoring said insulating material and refractory layer to said plate member.
Claim 16
Independent Claim
132 words
A method of burning fluid having combustible constituents, the method comprising the steps of continuously feeding a first supply of air in the form of a high velocity sheet across the top of an open-topped combustion chamber, the sheet being directed at an incline downwardly into said chamber so that air from said sheet enters a combustion zone formed within said chamber beneath said sheet and in which combustion has been initiated, continuously feeding a second supply of air to a mixing and injection nozzle below said first supply, continuously feeding the fluid waste to said nozzle for mixing with said second supply of air, and injecting the mixed air and waste through said nozzle and into the combustion zone in a direction substantially parallel the direction of travel of said sheet.
Claim 17
Independent Claim
132 words
A method of burning fluid having combustible constituents, the method comprising the steps of continuously feeding a first supply of air in the form of a high velocity sheet across the top of an open-topped combustion chamber, the sheet being directed at an incline downwardly into said chamber so that air from said sheet enters a combustion zone formed within said chamber beneath said sheet and in which combustion has been initiated, continuously feeding a second supply of air to a mixing and injection nozzle below said first supply, continuously feeding the fluid waste to said nozzle for mixing with said second supply of air, and injecting the mixed air and waste through said nozzle and into the combustion zone in a direction substantially parallel the direction of travel of said sheet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |