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US3895918A Expired / Lapsed US ⏱️ 0.0 years remaining

High efficiency, thermal regeneration anti-pollution system

Assignee: AIR & WATER TECHNOLOGIES Corp A DE CORP
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Filing: 1973-01-16
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Granted: 1975-07-22
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Expires: 1993-01-16
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Abstract

Abstract A thermal regeneration anti-pollution system has a central, generally cylindrical purification chamber operating at a hightemperature to oxidize, burn off, or otherwise thermally process undesired or noxious fumes and odors from industrial or other processes. This chamber is topped by a refractory-lined dome and at its periphery there are a plurality (preferably at least three) of associated flue-heat-exchange bed combinations bounded by vertical walls defining horizontal cross-sections in the general shape of a catenary curve. The heat-exchange bed includes ceramic packing held toward the inner (purification chamber) side by angled louvers. A corresponding plurality of angled vertical baffles are positioned in front of the louvers to lengthen the flow and hence the dwell time of the process gas within the central chamber.

Inventors

  • 👤 James H Mueller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 15:49
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/07; B; B01; B01D; B01D53/00; B01D53/34; F23G7/061; F23G7/065; F23G7/066; F23G7/068

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 185 words
APPARATUS FOR PROCESSING OF AN INDUSTRIAL EXHAUST GAS FLOW OR THE LIKE COMPRISING: A. A CENTRALLY DISPOSED CHAMBER IN WHICH A HIGH TEMPERATURE RANGE IS MAINTAINED, B. AT LEAST THREE SEPARATE, SPACED HEAT-EXCHANGE BEDS DISPOSED SUBSTANTIALLY EQUIANGULARLY AROUND AND PROTRUDING FROM THE PERIPHERY OF SAID CHAMBER, EACH BED CONTAINING RANDOMLY DISPOSED PACKING COMPRISED OF A PLURALITY OF SOLID HEAT EXCHANGE ELEMENTS, SAID BEDS BEING BOUNDED BY VERTICAL NON-PARALLEL WALLS, C. A PLURALITY OF INLET MEANS, EACH BEING COUPLED TO ONE OF SAID BEDS, FOR CONDUCTING SAID GAS FLOW TO SAID BED FOR PASSAGE THROUGH IT INTO SAID CHAMBER D. A PLURALITY OF OUTLET MEANS, EACH COUPLED TO ONE OF SAID BEDS, FOR CONDUCTING SAID GAS FLOW AWAY FROM SAID BED AFTER THE GAS FLOW HAS PASSED OUTWARDLY THROUGH SAID BED FROM SAID CENTRAL CHAMBER, AND E. FUELED HEATING MEANS WITHIN SAID CHAMBER FOR CONTINUOUSLY PRODUCING OR MAINTAINING SAID HIGH TEMPERATURE RANGE, SAID TEMPERATURE RANGE BEING CONSIDERABLY HIGHER THAN THE TEMPERATURE RANGE OF THE GAS FLOW AS IT FIRST IS APPLIED TO THE APPARTUS AND SUFFICIENTLY HIGH TO CAUSE CONTINUOUS THERMAL OXIDATION OF SAID GAS FLOW.
Claim 2
Dependent Claim 185 words
APPARATUS FOR PROCESSING OF AN INDUSTRIAL EXHAUST GAS FLOW OR THE LIKE COMPRISING: A. A CENTRALLY DISPOSED CHAMBER IN WHICH A HIGH TEMPERATURE RANGE IS MAINTAINED, B. AT LEAST THREE SEPARATE, SPACED HEAT-EXCHANGE BEDS DISPOSED SUBSTANTIALLY EQUIANGULARLY AROUND AND PROTRUDING FROM THE PERIPHERY OF SAID CHAMBER, EACH BED CONTAINING RANDOMLY DISPOSED PACKING COMPRISED OF A PLURALITY OF SOLID HEAT EXCHANGE ELEMENTS, SAID BEDS BEING BOUNDED BY VERTICAL NON-PARALLEL WALLS, C. A PLURALITY OF INLET MEANS, EACH BEING COUPLED TO ONE OF SAID BEDS, FOR CONDUCTING SAID GAS FLOW TO SAID BED FOR PASSAGE THROUGH IT INTO SAID CHAMBER D. A PLURALITY OF OUTLET MEANS, EACH COUPLED TO ONE OF SAID BEDS, FOR CONDUCTING SAID GAS FLOW AWAY FROM SAID BED AFTER THE GAS FLOW HAS PASSED OUTWARDLY THROUGH SAID BED FROM SAID CENTRAL CHAMBER, AND E. FUELED HEATING MEANS WITHIN SAID CHAMBER FOR CONTINUOUSLY PRODUCING OR MAINTAINING SAID HIGH TEMPERATURE RANGE, SAID TEMPERATURE RANGE BEING CONSIDERABLY HIGHER THAN THE TEMPERATURE RANGE OF THE GAS FLOW AS IT FIRST IS APPLIED TO THE APPARTUS AND SUFFICIENTLY HIGH TO CAUSE CONTINUOUS THERMAL OXIDATION OF SAID GAS FLOW.
Claim 3
Dependent Claim 17 words
The apparatus according to claim 1 wherein the walls of said chamber are substantially cylindrical and vertical.
Claim 4
Dependent Claim 31 words
The apparatus according to claim 1 wherein said central chamber is topped by a substantially dome-like roof made of refractory material for helping to concentrate radiant heat energy within said chamber.
Claim 5
Dependent Claim 28 words
The apparatus according to claim 1 wherein said beds are bounded in part by non-parallel vertical wall sections which diverge as they approach the periphery of said chamber.
Claim 6
Dependent Claim 39 words
The apparatus according to claim 1 with the addition of vertical baffles positioned adjacent to the walls of said beds closest to said chamber and angled to deflect gas flow coming through said beds in the same general direction.
Claim 7
Dependent Claim 29 words
The apparatus according to claim 1 wherein said heating means comprises a plurality of heating means extending into said chamber at a corresponding plurality of points between said beds.
Claim 8
Dependent Claim 37 words
The apparatus according to claim 1 wherein said inlet and outlet means comprise a plurality of flues, each associated with one of said beds and inlet and outlet conduits for each bed respectively coupled to said flues.
Claim 9
Dependent Claim 29 words
The apparatus according to claim 7 with the addition of means associated with each flue for recycling gas processed in said apparatus back through said beds into said chamber.
Claim 10
Dependent Claim 26 words
The apparatus according to claim 1 wherein each of said beds is bounded on at least one side by a plurality of substantially horizontally disposed louvers.
Claim 11
Dependent Claim 15 words
The apparatus according to claim 9 wherein said louvers are angled upwardly toward said chamber.
Claim 12
Dependent Claim 18 words
The apparatus according to claim 9 wherein the innermost wall of said beds comprises a plurality of louvers.

References Cited (Backward Citations)

US2730434A Cited
US2898202A Cited
US3211534A Cited
US3404965A Cited
US3615247A Cited
US3634026A Cited
US3698873A Cited
US3751920A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-21 1979-01-20 1979-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-21 1983-01-20 1983-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-21 1987-01-20 1987-07-22 $7700.00 Window Closed / Lapsed

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