US5050508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the incineration of refuse and the treatment of the incineration exhaust gasses
Assignee: HRC A PARTNERSHIP OF
•
Filing: 1990-10-09
•
Granted: 1991-09-24
•
Expires: 2010-10-09
Abstract
Abstract An improved system is provided for the incineration of refuse, especially scrapped automobile and truck tires and the treatment of incineration exhaust gasses as produced thereby. The refuse is incinerated in a closed fire box at controlled temperatures with the incineration exhaust gasses being serially treated by filtration, after-burning, washing with water by use of both a water bath and a water spray, washing with a petroleum based solvent, and cooling to a temperature below the freezing point of water. Filtration is carried out by a self-cleaning apparatus. A combined apparatus is used to carry out both the water bath and water spray with the resultant gasses being acceptable for release into the atmosphere.
Inventors
- 👤 Paul Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:02
CPC Classifications
F; F23; F23J; F23J15/00; F23J15/02; F23J15/022; F23J15/025; F23G; F23G5/00; F23G5/006; F23G7/00; F23G7/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
63 words
A method for the treatment of heated exhaust gasses from the incineration of refuse including the steps of; directing said gasses through a plurality of filter units each containing a plurality of foraminous filter members to entrap particulate material present in said gasses, and subjecting said exhaust gasses after exiting said filter units to temperatures below that of the freezing point of water.
Claim 2
Independent Claim
63 words
A method for the treatment of heated exhaust gasses from the incineration of refuse including the steps of; directing said gasses through a plurality of filter units each containing a plurality of foraminous filter members to entrap particulate material present in said gasses, and subjecting said exhaust gasses after exiting said filter units to temperatures below that of the freezing point of water.
Claim 3
Independent Claim
123 words
A method for the incineration of refuse and the treatment of incineration exhaust gasses comprising; incinerating said refuse in a fire box having air intake means, oil decomposition product removal means, and exhaust gas off take means, directing said exhaust gasses from said off take means to cooling means, treating said exhaust gasses in said cooling means by heat exchange with a cooling liquid, passing said exhaust gasses through filtration means whereby particulates are removed from the exhaust gasses, subjecting said exhaust gasses to after-burning in a closed after-burner chamber, passing said exhaust gasses through a wash assembly whereby the exhaust gasses are passed through a water bath and subjected to a water spray, and discharging the cleaned exhaust gasses to the atmosphere.
Claim 4
Independent Claim
123 words
A method for the incineration of refuse and the treatment of incineration exhaust gasses comprising; incinerating said refuse in a fire box having air intake means, oil decomposition product removal means, and exhaust gas off take means, directing said exhaust gasses from said off take means to cooling means, treating said exhaust gasses in said cooling means by heat exchange with a cooling liquid, passing said exhaust gasses through filtration means whereby particulates are removed from the exhaust gasses, subjecting said exhaust gasses to after-burning in a closed after-burner chamber, passing said exhaust gasses through a wash assembly whereby the exhaust gasses are passed through a water bath and subjected to a water spray, and discharging the cleaned exhaust gasses to the atmosphere.
Claim 5
Dependent Claim
22 words
The method of claim 2 further comprising cooling the exhaust gasses in a freezer room to a temperature below their dew point.
Claim 6
Dependent Claim
24 words
The method of claim 2 further comprising cooling the exhaust gasses in a freezer room to a temperature below the freezing point of water.
Claim 7
Dependent Claim
23 words
The method of claim 2 including; directing said exhaust gasses through filter tubes having an oil wash disposed downstream of said wash assembly.
Claim 8
Dependent Claim
36 words
The method of claim 2 further comprising controlling the incineration temperature in said fire box by varying the speed of a vacuum blower disposed downstream of said fire box and upstream of said closed after-burner chamber.
Claim 9
Dependent Claim
32 words
The method of claim 6 further comprising subjecting the exhaust gasses to a preliminary after-burn in a preliminary after burner disposed downstream of the fire box and upstream of the vacuum blower.
Claim 10
Dependent Claim
49 words
The method of claim 6 wherein the vacuum blower further comprises automatic control means whereby the speed of said vacuum blower is varied in a functional relationship to the temperature sensed by temperature sensing means disposed at selected locations to include temperature sensing means disposed at the fire box.
Claim 11
Dependent Claim
18 words
The method of claim 6 further comprising maintaining the temperature in said fire box between 2000-2500 degrees F.
Claim 12
Dependent Claim
18 words
The method of claim 2 further comprising maintaining the temperature in said after-burner chamber between 4000-6000 degrees F.
Claim 13
Independent Claim
157 words
An apparatus for incinerating refuse and treating exhaust gasses as generated thereby comprising; a fire box defining an incineration chamber provided with ignition means, said fire box having air inlet and exhaust gas outlet means, exhaust gas cooling means adjacent said fire box and including an exhaust gas conduit therein communicating with said fire box outlet means, said conduit having discharging to an exit line, a plurality of filter units respectively joined in series and receiving exhaust gasses from said cooling means conduit exit line, said filter units provided with a plurality of foraminous filter members, a water wash assembly receiving exhaust gasses from said filter units, said assembly including a tank having a perforated exhaust gas pipe disposed within a circulating water bath, and cooling means receiving exhaust gasses discharged from said water wash assembly and operable to condense said exhaust gasses for collection of residual pollutants prior to discharge of said gasses to the atmosphere.
Claim 14
Independent Claim
157 words
An apparatus for incinerating refuse and treating exhaust gasses as generated thereby comprising; a fire box defining an incineration chamber provided with ignition means, said fire box having air inlet and exhaust gas outlet means, exhaust gas cooling means adjacent said fire box and including an exhaust gas conduit therein communicating with said fire box outlet means, said conduit having discharging to an exit line, a plurality of filter units respectively joined in series and receiving exhaust gasses from said cooling means conduit exit line, said filter units provided with a plurality of foraminous filter members, a water wash assembly receiving exhaust gasses from said filter units, said assembly including a tank having a perforated exhaust gas pipe disposed within a circulating water bath, and cooling means receiving exhaust gasses discharged from said water wash assembly and operable to condense said exhaust gasses for collection of residual pollutants prior to discharge of said gasses to the atmosphere.
Claim 15
Dependent Claim
25 words
An apparatus for incincerating refuse and treating exhaust gasses according to claim 11 wherein, said fire box includes a peripheral wall of substantially circular configuration.
Claim 16
Dependent Claim
32 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 including, a vacuum-blower assembly and after-burner chamber disposed in series between individual ones of said plurality of filter units.
Claim 17
Dependent Claim
39 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 wherein, said exhaust gas cooling means includes a continuously circulating water bath surrounding said conduit and refrigeration means maintaining the water bath in a chilled condition.
Claim 18
Dependent Claim
30 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 wherein, said filter members within a single one said filter unit define apertures of progressively varying dimensions.
Claim 19
Dependent Claim
30 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 wherein, said filter members within successive ones of said filter units define apertures of progressively varying dimensions.
Claim 20
Dependent Claim
40 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 wherein, said filter units each include an elongated tank having a bottom most portion, and discharge means operable to remove particulates from said tank bottom most portion.
Claim 21
Dependent Claim
67 words
An apparatus for incinerating refuse and treating exhaust gasses according to claim 11 wherein, said filter units include exhaust gas inlet and outlet ports at opposite ends thereof, means movably mounting said filter members intermediate said filter unit ports, and said filter members shiftable upon impingement of said exhaust gasses thereupon whereby, particulates as entrapped by said filter members are encouraged to fall from said filter members.
References Cited (Backward Citations)
US4402738A
Cited
US4571175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |