Furnaces – With exhaust gas treatment means – Afterburning means
Reexamination Certificate
2001-01-06
2001-10-23
Bennett, Henry (Department: 3749)
Furnaces
With exhaust gas treatment means
Afterburning means
C110S229000, C110S344000, C110S346000, C110S235000
Reexamination Certificate
active
06305302
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to the disposal of tires and more specifically to waste tire gasification in a negative ambient pressure environment which controls the oxidizing environment in a gasification chamber to greatly reduce the possibility of pre-detonation, and to control the density of combustion gases.
2. Discussion of the Prior Art
Disposal of discarded tires is a problem encountered everywhere. There are numerous tire burners on the market which range from large capacity incineration units to smaller units used as a heat source. The drawback to the smaller units is the possibility of pre-detonation in the gasification chamber, the generation of combustion gases in a pressurized environment, the lack of control of generated combustion gases, and air forced into tire burner adjacent the gasification chamber.
Air forced into the tire burner adjacent the gasification chamber increases the probability of pre-detonation therein. Forcing air into the tire burner creates a gasification chamber which operates under pressurized conditions. Some of the air forced into the gasification chamber will blow past the flame and not be consumed thereby. The “blow-by” air will inhibit precise combustion gas density. When predetonation does occur, the tire burner must be turned off for several hours to allow thereof to cool down. A gasification chamber which operates under pressure is less safe than one which operates at a negative ambient pressure.
Accordingly, there is a clearly felt need in the art for waste tire gasification in a negative ambient pressure environment which controls the oxidizing environment in the gasification chamber to greatly decrease the possibility of pre-detonation, and to precisely control the density of combustion gases.
SUMMARY OF THE INVENTION
The present invention provides waste tire gasification in a negative ambient pressure environment to greatly reduce the possibility of pre-detonation, and to control the quantity of combustion gases. An apparatus for providing waste tire gasification in a negative ambient pressure environment includes a gasification unit, a combustion unit, and a connection pipe. The gasification unit includes a gasification chamber, at least one air vent, at least one gasification igniter, and a fan. The combustion unit includes a combustion chamber, and an exhaust pipe. The connection pipe connects an outlet of the gasification unit with an inlet of the combustion unit. A combustion igniter is preferably disposed in the connection pipe at substantially an inlet of the combustion chamber.
In operation, tires are placed inside the gasification chamber. The tires are ignited using the at least one gasification igniter. Each gasification igniter is mounted in a gasification ignition port. To start ignition of the tires, the gasification igniter is turned on. When the tires have begun to burn, the at least one gasification igniter is turned off, removed from its respective gasification ignition port, and each gasification ignition port sealed. Air enters the gasification chamber at or below the smolder line of the tires through the at least one air vent. The rapid oxidation of the tires is fed with the air entering the at least one air vent.
The combustion gases generated from the oxidizing tires are pulled out of the gasification chamber through a vacuum pipe with the fan. The combustion gases are pushed through the connection pipe in to the combustion chamber. The combustion gases are ignited in the combustion chamber with the combustion igniter. The ignited gases may be used to heat a boiler or used for any other purpose. Other types of solid fuel besides tires may also be used.
Accordingly, it is an object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which greatly reduces the probability of pre-detonation in the gasification chamber.
It is a further object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which accurately controls the quantity of combustion gases.
It is yet a further object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which accurately controls the quality of combustion gases.
It is yet a further object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which does not operate under a pressurized environment.
It is yet a further object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which provides air as needed to the oxidizing tires.
Finally, it is another object of the present invention to provide an apparatus for providing waste tire gasification in a negative ambient pressure environment which utilizes discarded tires as a clean energy source.
These and additional objects, advantages, features and benefits of the present invention will become apparent from the following specification.
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Bennett Henry
Ersler Donald J.
Rinehart K. B.
Waste Tire Gas Technologies, Inc.
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