US3828700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the smokeless burning of residues, and apparatus therefor
Assignee: Societe pour lEquipement des Industries Chimiques SA
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Filing: 1973-04-04
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Granted: 1974-08-13
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Expires: 1993-04-04
Abstract
Abstract A process and apparatus for use in treating industrial residues such as chemical waste which are in a liquid form but which are substantially uncombustible. The invention provides for the combination of the residues with at least 30 percent by weight combustible substances, preferably substances which are also waste materials, and the burning of the combination at the base of a chimney. The chimney is designed for the introduction of air into the burning zone, and a mechanism for producing a spray of the residue and substances introduced is utilized.
Inventors
- 👤 R Ragot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:36
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/001; F23D; F23D1/00; F23D1/005; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
295 words
An apparatus for destroying or eliminating through burning or vaporization, industrial residues comprising viscous liquids capable of flowing regularly and being substantially noncombustible, in combination with at least 30 percent by weight combustible substances, said apparatus comprising a substantially vertical chimney, a base for said chimney, and at least one burner associated with said base, means for feeding an auxiliary gaseous fluid under pressure to said burner, means for directing said combustible substances to said burner along with said gaseous fluid, and means for feeding said residues to said burner along with said gaseous fluid, said burner comprising an annular zone fed with gaseous fluid under pressure at one of its ends, and containing at its opposite end, two turbulence rings, separated from one another by a mixing zone, the outlet of the second turbulence ring opening into a combustion zone; and a second annular zone surrounding the first one and being fed with said substances at its end situated on the same side as the gaseous fluid feed point to the first annular zone and at its opposite end with apertures at the outlet level of the first turbulence ring, said apertures allowing intimate mixing of the substances with the gaseous fluid before the resulting mixture passes into the combustion zone through the second turbulence ring; and a device insuring spraying and injection into the flame of non-combustible residues, said device comprising a third annular zone and an axial zone, said third zone surrounding said axial zone, said third zone having one end situated adjacent the feed points of the other zones and the opposite end of said axial zone being located adjacent the outlet of said third zone, a deflector connected to said opposite end and defining apertures opening into said third zone.
Claim 2
Independent Claim
295 words
An apparatus for destroying or eliminating through burning or vaporization, industrial residues comprising viscous liquids capable of flowing regularly and being substantially noncombustible, in combination with at least 30 percent by weight combustible substances, said apparatus comprising a substantially vertical chimney, a base for said chimney, and at least one burner associated with said base, means for feeding an auxiliary gaseous fluid under pressure to said burner, means for directing said combustible substances to said burner along with said gaseous fluid, and means for feeding said residues to said burner along with said gaseous fluid, said burner comprising an annular zone fed with gaseous fluid under pressure at one of its ends, and containing at its opposite end, two turbulence rings, separated from one another by a mixing zone, the outlet of the second turbulence ring opening into a combustion zone; and a second annular zone surrounding the first one and being fed with said substances at its end situated on the same side as the gaseous fluid feed point to the first annular zone and at its opposite end with apertures at the outlet level of the first turbulence ring, said apertures allowing intimate mixing of the substances with the gaseous fluid before the resulting mixture passes into the combustion zone through the second turbulence ring; and a device insuring spraying and injection into the flame of non-combustible residues, said device comprising a third annular zone and an axial zone, said third zone surrounding said axial zone, said third zone having one end situated adjacent the feed points of the other zones and the opposite end of said axial zone being located adjacent the outlet of said third zone, a deflector connected to said opposite end and defining apertures opening into said third zone.
Claim 3
Dependent Claim
25 words
An apparatus in accordance with claim 1 wherein said deflector which closes the end of said axial zone has the shape of an inverted cone.
Claim 4
Dependent Claim
29 words
An apparatus in accordance with claim 2 wherein the position of the deflector with respect to the free end of the outer wall of said third zone is adjustable.
Claim 5
Dependent Claim
20 words
An apparatus in accordance with claim 1 which further comprises a second deflector surrounding the flame in the combustion zone.
Claim 6
Dependent Claim
86 words
An apparatus in accordance with claim 1 wherein said turbulence ring comprises equal fragments of hollow tubes, cut so as to form parallel bevels at their two ends, the said fragments being obliquely inclined and arranged side-by-side to form an annular bundle so that the bevelled sections are within two parallel planes delimiting the upper and lower surfaces of the ring, the said fragments being connected, each one with its two neighbors, laterally in this position, along two generatrices substantially diametrically opposite, said ring being closed.
Claim 7
Dependent Claim
200 words
In an apparatus for destroying or eliminating through burning or vaporization, industrial residues comprising viscous liquids capable of flowing regularly and being substantially non-combustible, in combination with at least 30 percent by weight combustible substances, said apparatus comprising a substantially vertical chimney, a base for said chimney, and at least one burner associated with said base to provide a combustion zone in the area of the base, the improvement comprising first conduit means leading to said burner, means for feeding a gaseous stream under pressure into said first conduit means, second conduit means for said combustible substances, outlet means defined by said second conduit means for passing the combustible substances into contact with said gaseous stream for pulverizing said substances whereby the pulverized substances and admixed gaseous streams are fed to the burner, and third conduit means for said residues, outlet means defined by said third conduit means for passing said residues into contact with said gaseous stream for pulverizing said residues whereby the pulverized residues and admixed gaseous stream are fed into the flame developed by the burner in the combustion zone, and including at least one turbulence ring in said first conduit means for agitating the gaseous stream.
Claim 8
Dependent Claim
200 words
In an apparatus for destroying or eliminating through burning or vaporization, industrial residues comprising viscous liquids capable of flowing regularly and being substantially non-combustible, in combination with at least 30 percent by weight combustible substances, said apparatus comprising a substantially vertical chimney, a base for said chimney, and at least one burner associated with said base to provide a combustion zone in the area of the base, the improvement comprising first conduit means leading to said burner, means for feeding a gaseous stream under pressure into said first conduit means, second conduit means for said combustible substances, outlet means defined by said second conduit means for passing the combustible substances into contact with said gaseous stream for pulverizing said substances whereby the pulverized substances and admixed gaseous streams are fed to the burner, and third conduit means for said residues, outlet means defined by said third conduit means for passing said residues into contact with said gaseous stream for pulverizing said residues whereby the pulverized residues and admixed gaseous stream are fed into the flame developed by the burner in the combustion zone, and including at least one turbulence ring in said first conduit means for agitating the gaseous stream.
Claim 9
Dependent Claim
64 words
An apparatus in accordance with claim 6 wherein said first conduit means comprise a pair of conduits for feeding a gaseous stream into contact with said substances and said residues, respectively, and including separate turbulence rings associated with said first and second conduits, said rings being positioned for the passage of admixed material through the rings immediately prior to entry into the combustion zone.
Claim 10
Dependent Claim
40 words
An apparatus in accordance with claim 6 wherein said third conduit means is disposed substantially along the axis of the apparatus, said first and second conduit means comprising annular zones positioned in surrounding relationship relative to the first conduit means.
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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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |