초록 ▼

The invention is directed to an optimized two-chamber eductor based incinerator system. The two-chamber optimized incinerator system includes a primary and a secondary combustion chamber, the system having a single fuel fired burner located in one of the secondary combustion chamber, or the eductor.

The invention is directed to an optimized two-chamber eductor based incinerator system. The two-chamber optimized incinerator system includes a primary and a secondary combustion chamber, the system having a single fuel fired burner located in one of the secondary combustion chamber, or the eductor. The system also includes an eductor connecting the primary combustion chamber to the secondary combustion chamber, the eductor creating a recirculation flow through the first and the second combustion chambers.

대표청구항 ▼

1. A two-chamber incinerator system comprising: a primary combustion chamber having a combustion bed for receiving waste therewithin;a primary combustion air source connected to the primary combustion chamber providing a primary combustion air supply into the primary combustion chamber;a secondary c

1. A two-chamber incinerator system comprising: a primary combustion chamber having a combustion bed for receiving waste therewithin;a primary combustion air source connected to the primary combustion chamber providing a primary combustion air supply into the primary combustion chamber;a secondary combustion chamber, downstream of the primary combustion chamber;an eductor attached to an inlet region of the secondary combustion chamber;a supplemental fuel source connected to the eductor providing fuel into the secondary combustion chamber;a secondary combustion air source connected to the secondary combustion chamber providing a secondary combustion air supply into the secondary combustion chamber;a burner in the eductor for igniting the fuel in the secondary chamber;an exhaust fuel-gas conduit, connecting the primary combustion chamber to the eductor, the exhaust fuel-gas conduit feeding fuel-gas from the primary combustion chamber to the secondary combustion chamber;an exhaust gas recirculation conduit, connecting the secondary combustion chamber to the primary combustion chamber, wherein the exhaust gas recirculation conduit feeds exhaust gas from the secondary combustion chamber to the primary combustion chamber, the exhaust gas, in combination with the primary combustion air, igniting the waste within the primary combustion chamber, wherein the fuel-gas conduit and the exhaust gas recirculation conduit form a recirculation loop between the primary combustion chamber and the secondary combustion chamber; and a bypass combustion air conduit for supplying the secondary combustion air from the secondary combustion air source directly into the secondary combustion chamber. 2. The incinerator system of claim 1 further comprising an exhaust stack connected to the secondary combustion chamber for evacuating a portion of the exhaust gas from the system, and for drawing combustion air into the system. 3. The incinerator system of claim 2 further comprising: a first temperature sensor arrangement in the primary combustion chamber;a second temperature sensor arrangement in the secondary combustion chamber;a fuel valve for regulating the flow of fuel into the secondary combustion chamber;a secondary combustion air valve for regulating the flow of the secondary combustion air into the secondary combustion chamber via the eductor;a bypass combustion air valve for regulating the flow of secondary combustion air directly into the secondary combustion chamber;a primary combustion air valve for regulating the flow of the primary combustion air into the primary combustion chamber;a controller, electrically connected to the first and second temperature sensor arrangements, the fuel valve, the secondary combustion air valve, the bypass combustion air valve, the primary combustion air valve, and the burner for controlling the operation of the incinerator system. 4. The incinerator system of claim 3, wherein the controller comprises a non-transitory computer-readable medium storing an information processing program that causes a computer to execute operations comprising: opening the bypass combustion air valve to allow bypass combustion air into the secondary combustion chamber;opening the fuel valve to direct the flow of fuel into the secondary combustion chamber;igniting the burner to burn the fuel and to heat the secondary combustion chamber to a desired temperature; andmonitoring the temperature readings within the secondary combustion chamber to determine if a predetermined preheat temperature is reached. 5. The incinerator system of claim 4, wherein when the predetermined preheat temperature is reached, the information processing program causes the computer to execute operations comprising: closing the bypass combustion air valve to stop the flow of combustion air from the bypass combustion air supply;partially closing the fuel valve to reduce the flow of fuel into the secondary combustion chamber in order to maintain the temperature in the secondary combustion chamber at a temperature that is substantially equal to the predetermined preheat temperature;opening the secondary combustion air valve to allow secondary combustion air into the secondary combustion chamber via the eductor, wherein a pressure difference is created across the secondary combustion chamber generates a recirculating flow between the primary combustion chamber and the secondary combustion chamber, wherein the recirculating flow comprises:the exhaust that flows from the secondary combustion chamber to the primary combustion chamber; andthe fuel gas generated from the ignited waste in the primary chamber that flows from primary chamber into the secondary chamber via the eductor. 6. The incinerator system of claim 5, wherein when the primary chamber reaches its operating temperature, the information processing program causes the computer to execute operations of closing the combustion air valve and opening the combustion air bypass valve to stop the recirculation flow to avoid overheating the primary chamber. 7. A method of waste combustion comprising: providing a primary combustion chamber having a combustion bed for receiving waste therewithin;providing waste on the combustion bed;providing a primary combustion air source connected to the primary combustion chamber providing a primary combustion air supply into the primary combustion chamber;providing a secondary combustion chamber, downstream of the primary combustion chamber;providing an eductor attached to an inlet region of the secondary combustion chamber;providing a supplemental fuel source connected to the eductor providing fuel into the secondary combustion chamber;providing a secondary combustion air source connected to the eductor providing a secondary combustion air supply into the secondary combustion chamber;providing a burner in the eductor for igniting the fuel;providing an exhaust fuel-gas conduit, connecting the primary combustion chamber to the eductor;providing an exhaust gas conduit, connecting the secondary combustion chamber to the primary combustion chamber providing a bypass combustion air conduit for supplying the secondary combustion air from the secondary combustion air source directly into the secondary combustion chamber; the method further comprising; feeding combustion air from the secondary combustion air source into the secondary combustion; feeding fuel into the secondary combustion chamber;igniting the burner to burn the fuel thereby creating an exhaust gas byproduct within the secondary combustion chamber;directing the exhaust gas to the primary combustion chamber via the exhaust gas conduit, and using the exhaust gas waste in combination with the primary combustion air supply to ignite the waste within the combustion bed. 8. The method of waste combustion of claim 7, wherein the combustion air is fed from the secondary combustion air source into the secondary combustion chamber via the eductor, and wherein a pressure difference is created across the eductor generating a recirculating flow between the primary combustion chamber and the secondary combustion chamber, wherein the recirculating flow comprises: the exhaust that flows from the secondary combustion chamber to the primary combustion chamber; anda fuel gas generated from the ignited waste in the primary chamber flowing from primary chamber into the secondary chamber via the eductor. 9. The method of waste combustion of claim 8, wherein prior to generating the recirculating flow, the combustion air is fed through the bypass combustion air conduit into the secondary combustion chamber, the method further comprising monitoring the temperature within the secondary combustion chamber to determine if a predetermined preheat temperature is reached, and wherein when the predetermined preheat temperature is reached, the method further comprising: reducing the flow of fuel into the secondary combustion chamber in order to maintain the secondary combustion chamber temperature at about the predetermined preheat temperature. 10. The method of waste combustion of claim 8, wherein when the primary chamber reaches its operating temperature, the method further comprises closing the combustion air valve and opening the combustion air bypass valve to stop the recirculation flow to avoid overheating the primary chamber.