Patent US3902435A successfully refreshed from Google Patents.
US3902435A
Expired / Lapsed
US
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Method of incinerating pre-treated industrial wastes
Assignee: Hitachi Zosen Inova Steinmueller GmbH
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Filing: 1974-01-21
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Granted: 1975-09-02
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Expires: 1994-01-21
Abstract
Abstract A method of incinerating pretreated industrial waste, according to which the wastes conveyed to the incinerator in containers is pretreated either by deep-freezing the wastes or by volatilizing the wastes under exclusion of air, or by mixing the wastes with substances of addition or with leaning substances, e.g., mud, ash, sand, wood shavings, whereupon the thus obtained wastes, either reduced in size or in volatilized condition are fed into the fire chamber of the incinerator.
Inventors
- 👤 Ernst Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:44
CPC Classifications
F; F23; F23G; F23G7/00; F23G5/00; F23G5/02; F23G2201/00; F23G2201/90; Y; Y10; Y10S; Y10S241/00; Y10S241/37; Y10S241/38
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A method of incinerating industrial wastes fed to the incinerator in containers of different contents and of unknown composition, which includes in combination the steps of: pretreating the wastes to be incinerated by deep-freezing the same, comminuting said deep-frozen wastes and feeding the same into the combustion chamber of the incinerator, and determining the combustion air for the combustion chamber on the basis of the quantity of wastes fed per hour into the combustion chamber and on equalIzation based on the heating power of said wastes and in the air excess-coefficient and feeding the thus determined quantity of air into the combustion chamber of the incinerator, the quantity of combustion air being so selected that the wastes being fed into the combustion chamber of the incinerator per time unit, especially those reacting at the fastest rate, will be burned completely.
Claim 2
Independent Claim
140 words
A method of incinerating industrial wastes fed to the incinerator in containers of different contents and of unknown composition, which includes in combination the steps of: pretreating the wastes to be incinerated by deep-freezing the same, comminuting said deep-frozen wastes and feeding the same into the combustion chamber of the incinerator, and determining the combustion air for the combustion chamber on the basis of the quantity of wastes fed per hour into the combustion chamber and on equalIzation based on the heating power of said wastes and in the air excess-coefficient and feeding the thus determined quantity of air into the combustion chamber of the incinerator, the quantity of combustion air being so selected that the wastes being fed into the combustion chamber of the incinerator per time unit, especially those reacting at the fastest rate, will be burned completely.
Claim 3
Dependent Claim
73 words
A method in combination according to claim 1, which includes the steps of providing the wastes containing containers with discharge openings, compressing said containers to a pressure to press at least a major portion of the wastes in said container out of the latter for feeding to the combustion chamber of the incinerator, and crushing the solid residues and feeding the same intermixed with said wastes into the combustion chamber of the incinerator.
Claim 4
Dependent Claim
32 words
A method in combination according to claim 2, in which the discharge of the wastes from the respective container therefor and the crushing of said container is effected in an inert atmosphere.
Claim 5
Dependent Claim
29 words
A method in combination according to claim 1, which includes the step of freeing the wastes from the conatiners where the deep-freezing is effected by splitting up the containers.
Claim 6
Dependent Claim
35 words
A method in combination according to claim 1, which includes the step of intermixing the deep-cooled granulates of the wastes in the deep-cooling zone prior to feeding same into the combustion chamber of the incinerator.
Claim 7
Dependent Claim
49 words
A method in combination according to claim 1, which includes the steps of reducing to a desired size the solid wastes and charging the same into the zone where the cooling is to be effected while simultaneously undercooling said reduced solid wastes and mixing same with the deep-frozen wastes.
Claim 8
Dependent Claim
37 words
A method in combination according to claim 1, in which of the non-cooled solid wastes reduced in size and the crushed container parts at least the former are fed directly to the combustion chamber of the incinerator.
References Cited (Backward Citations)
US2879005A
Cited
US3457881A
Cited
US3685467A
Cited
US3718284A
Cited
US3736111A
Cited
US3771729A
Cited
US3734036A
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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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |