US3722433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for waste incineration
Assignee: Individual
•
Filing: 1971-05-18
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Granted: 1973-03-27
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Expires: 1991-05-18
Abstract
Abstract Waste incineration apparatus and method are provided having two serially connected combustion chambers for incineration of solid, semi-solid and liquid waste material, each of which comprises combustible components. The combustion chambers are relatively positioned so that heated gaseous fluids produced by combustion of substantially only solid and semi-solid waste introduced into the first chamber are discharged into the second chamber for enhancement of combustion of liquid waste introduced into the second chamber. These gaseous fluids which are at a relatively high temperature include those that enable or support combustion of liquid waste and may also include those that are combustible when combined with additional combustion air with these gaseous fluids intermixing with liquid waste entering the second chamber thereby enhancing the combustion characteristics of the liquid waste. Preferably, combustion in the first chamber is carried out in the presence of a substantial amount of excess air resulting in complete combustion and preheating of the remaining combustion air prior to its entry into the second combustion chamber. Alternatively, combustion in the first chamber is controlled by limiting the amount of combustion air admitted to that necessary to effect burning of the solids or semi-solids but not sufficient for combustion of the gaseous fluids evolved as a result of that combustion process thereby forming a combustible gaseous fluid.
Inventors
- 👤 R Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:27
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/008; F23G2202/00; F23G2202/10; F23G2202/103; F23G2202/105; F23G2203/00; F23G2203/101; F23G2205/00; F23G2205/10; F23G2205/14; F23G2205/18; F23J; F23J2217/00; F23J2217/50; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
187 words
A waste incineration apparatus comprising A. a first combustion chamber having a charging aperture for receiving therethrough solid waste containing combustible material and including primary air inlet means providing an inflow of combustion air to said chamber for combustion of the solid wastes thereby producing gaseous-fluid products of combustion at elevated temperatures and a discharge outlet for removal of the products of combustion from said chamber; and B. a second relatively elongated combustion chamber having a liquid inlet disposed in one end thereof for introducing liquid waste comprising combustible components interiorly of said second chamber, and directing the liquid waste longitudinally thereof, a gaseous-fluid inlet connected in fluid communicating relationship with the discharge outlet of said first combustion chamber and positioned relative to said liquid inlet for intermixing of the gaseous-fluid products of combustion with the liquid waste for combustion thereof, (and) an exhaust opening formed in said second combustion chamber relatively remote to said liquid inlet and toward which the liquid waste is directed to permit removal of combustion products, and at least one solid waste inlet disposed intermediate said liquid inlet and said exhaust opening.
Claim 2
Dependent Claim
187 words
A waste incineration apparatus comprising A. a first combustion chamber having a charging aperture for receiving therethrough solid waste containing combustible material and including primary air inlet means providing an inflow of combustion air to said chamber for combustion of the solid wastes thereby producing gaseous-fluid products of combustion at elevated temperatures and a discharge outlet for removal of the products of combustion from said chamber; and B. a second relatively elongated combustion chamber having a liquid inlet disposed in one end thereof for introducing liquid waste comprising combustible components interiorly of said second chamber, and directing the liquid waste longitudinally thereof, a gaseous-fluid inlet connected in fluid communicating relationship with the discharge outlet of said first combustion chamber and positioned relative to said liquid inlet for intermixing of the gaseous-fluid products of combustion with the liquid waste for combustion thereof, (and) an exhaust opening formed in said second combustion chamber relatively remote to said liquid inlet and toward which the liquid waste is directed to permit removal of combustion products, and at least one solid waste inlet disposed intermediate said liquid inlet and said exhaust opening.
Claim 3
Dependent Claim
51 words
Waste incineration apparatus according to claim 1 wherein said first combustion chamber includes secondary combustion air inlet means relatively disposed therein to admit combustion air for intermixing with the gaseous fluid products of combustion for heating thereof and further combustion of the combustible components in the gaseous fluid products of combustion.
Claim 4
Dependent Claim
32 words
Waste incineration apparatus according to claim 1 wherein said primary air inlet means is selectively controllable to limit inflow of combustion air to that producing gaseous-fluid products of combustion having combustible components.
Claim 5
Dependent Claim
35 words
Waste incineration apparatus according to claim 1 including means controlling the temperature of the gaseous fluid products of combustion through a water spray device disposed in said first combustion chamber adjacent the discharge outlet thereof.
Claim 6
Dependent Claim
41 words
Waste incineration apParatus according to claim 1 wherein said first combustion chamber includes a grate for support of the solid waste during the combustion thereof and said primary air inlet means supplying combustion air to solid waste from beneath said grate.
Claim 7
Dependent Claim
52 words
Waste incineration apparatus according to claim 5 wherein said primary air inlet means supplying combustion air includes a closed chamber beneath said grate, a forced draft fan coupled with said closed chamber for forcing air into said closed chamber and valve means selectively operable to control air flow into said closed chamber.
Claim 8
Dependent Claim
40 words
Waste incineration apparatus according to claim 5 wherein said first combustion chamber includes an ash removal gate disposed at a discharge end of said grate and wherein said grate is operable to advance solid waste therealong toward said ash gate.
Claim 9
Dependent Claim
59 words
Waste incineration apparatus according to claim 5 wherein said first combustion chamber includes charging means for solid waste disposed at a charging end of said grate opposite said ash gate and charging means for semi-solid waste disposed in said combustion chamber to introduce semi-solid waste onto an upper surface of said grate and solid waste carried by said grate.
Claim 10
Dependent Claim
37 words
Waste incineration apparatus according to claim 1 wherein said liquid inlet is a rotary burner introducing the liquid waste in droplet-form that vaporizes as it intermixes with the gaseous-fluid products of combustion from said first combustion chamber.
Claim 11
Dependent Claim
34 words
Waste incineration apparatus according to claim 1 wherein said second combustion chamber includes secondary combustion air inlet means disposed to admit combustion air for intermixing with the liquid waste and gaseous-fluid products of combustion.
Claim 12
Dependent Claim
31 words
Waste incineration apparatus according to claim 10 wherein said secondary combustion air inlet means includes a forced draft fan for forcibly introducing secondary combustion air interiorly of said second combustion chamber.
Claim 13
Dependent Claim
31 words
Waste incineration apparatus according to claim 11 wherein said secondary combustion air inlet means includes a plurality of inlet orifices disposed in relatively spaced relationship longitudinally of said second combustion chamber.
Claim 14
Dependent Claim
33 words
Waste incineration apparatus according to claim 10 wherein said secondary combustion air inlet means includes a preheater for elevating the temperature of such secondary air prior to introduction into said second combustion chamber.
Claim 15
Dependent Claim
36 words
Waste incineration apparatus according to claim 1 wherein said exhaust opening is disposed at right angles to the longitudinal axis of said second combustion chamber thereby preventing direct radiation of flame heat through said exhaust opening.
Claim 16
Dependent Claim
33 words
Waste incineration apparatus according to claim 1 including a fan coupled with said second combustion chamber in communicating relationship with said exhaust opening for inducing fluid flow through said first and second combustion.
Claim 17
Dependent Claim
26 words
Waste incineration apparatus according to claim 1 including means removing solids from a gaseous fluid stream coupled with said second combustion chamber at said exhaust opening.
Claim 18
Dependent Claim
37 words
Waste incineration apparatus according to claim 1 including waste heat recovery means coupled with said second combustion chamber at said exhaust opening and interposed heat exchanging relationship in the gaseous fluid stream exiting through said exhaust opening.
Claim 19
Independent Claim
118 words
A method of incinerating segregated solid and liquid wastes comprising the steps of A. incineration in a first combustion chamber of solid wastes producing gaseous-fluid products of combustion at an elevated temperature, B. transfer of the gaseous-fluid products of combustion from the first combustion chamber to a second combustion chamber, C. introduction of liquid waste in droplet form into the second combustion chamber and intermixture with the gaseous-fluid products of combustion, (and) D. combustion of the intermixed liquid waste and gaseous-fluid products of combustion in a combustion atmosphere permitting Substantially complete combustion(.),and E. introducing solid waste into the second combustion chamber at a point within a zone of combustion for the liquid waste and gaseous-fluid products of combustion.
Claim 20
Independent Claim
118 words
A method of incinerating segregated solid and liquid wastes comprising the steps of A. incineration in a first combustion chamber of solid wastes producing gaseous-fluid products of combustion at an elevated temperature, B. transfer of the gaseous-fluid products of combustion from the first combustion chamber to a second combustion chamber, C. introduction of liquid waste in droplet form into the second combustion chamber and intermixture with the gaseous-fluid products of combustion, (and) D. combustion of the intermixed liquid waste and gaseous-fluid products of combustion in a combustion atmosphere permitting Substantially complete combustion(.),and E. introducing solid waste into the second combustion chamber at a point within a zone of combustion for the liquid waste and gaseous-fluid products of combustion.
Claim 21
Dependent Claim
44 words
The method of claim 18 which includes the step of introducing secondary combustion air into the first combustion chamber for intermixture with the gaseous-fluid products of combustion for complete combustion thereof and for providing combustion air at a temperature for the second combustion chamber.
Claim 22
Dependent Claim
25 words
The method of claim 18 which includes the step of cooling the gaseous-fluid products of combustion prior to transfer thereof from the first combustion chamber.
Claim 23
Dependent Claim
19 words
The method of claim 18 which includes the step of introducing additional combustion air into the second combustion chamber.
Claim 24
Dependent Claim
29 words
The method of claim 18 including the step of controlling the combustion air supplied to the first combustion chamber to prevent complete combustion of the gaseous-fluid products of combustion.
Claim 25
Dependent Claim
181 words
A waste incineration apparatus comprising A. a first combustion chamber having a charging aperture for receiving therethrough solid waste containing combustible material and including primary air inlet means providing an inflow of combustion air to said chamber for combustion of the solid wastes thereby producing gaseous-fluid products of combustionat elevated temperatures and a discharge outlet for removal of the products of combustion from said chamber; and B. a second relatively elongated combustion chamber having a liquid inlet disposed in one end thereof for introducing liquid waste comprising components interiorly of said second chamber and directing the liquid waste longitudinally thereof, a gaseous-fluid inlet connected in fluid communicating relationship with the discharge outlet of said first combustion chamber and positioned relative to said liquid inlet for intermixing of the gaseous-fluid products of combustion with the liquid waste for combustion thereof, an exhaust opening formed in said second combustion chamber relatively remote to said liquid inlet and toward which the liquid waste is directed to permit removal of combustion products, and a second liquid inlet disposed downstream from said first mentioned liquid inlet.
Claim 26
Dependent Claim
181 words
A waste incineration apparatus comprising A. a first combustion chamber having a charging aperture for receiving therethrough solid waste containing combustible material and including primary air inlet means providing an inflow of combustion air to said chamber for combustion of the solid wastes thereby producing gaseous-fluid products of combustionat elevated temperatures and a discharge outlet for removal of the products of combustion from said chamber; and B. a second relatively elongated combustion chamber having a liquid inlet disposed in one end thereof for introducing liquid waste comprising components interiorly of said second chamber and directing the liquid waste longitudinally thereof, a gaseous-fluid inlet connected in fluid communicating relationship with the discharge outlet of said first combustion chamber and positioned relative to said liquid inlet for intermixing of the gaseous-fluid products of combustion with the liquid waste for combustion thereof, an exhaust opening formed in said second combustion chamber relatively remote to said liquid inlet and toward which the liquid waste is directed to permit removal of combustion products, and a second liquid inlet disposed downstream from said first mentioned liquid inlet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |