Waste combustion system

Claim 2

A combustion system for burning fluid waste with a fuel and gaseous oxidizer, comprising: an annular combustion assembly having a primary combustion chamber with an outer peripheral wall and a coaxial secondary combustion chamber; a burner assembly mounted coaxially on the end of said primary combustion chamber opposite said secondary combustion chamber, said burner assembly having a gaseous oxidizer manifold mounted in said end, a venturi member extending through said end between said manifold and said primary combustion chamber, a waste conduit communicating with a nozzle disposed on said venturi member for atomizing the waste in said primary combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said primary combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; said venturi member further including a deflector surface to direct the mixture of fuel and gaseous oxidizer toward said outer peripheral wall for mixing and combustion with the atomized waste form said nozzle; an annular shoulder formed between said primary and secondary combustion chambers and facing said burner assembly; and said burner assembly directing the flow of the waste and gaseous oxidizer into said primary combustion chamber whereby the fuel and gaseous oxidizer mixture and atomized waste mix within the primary combustion chamber adjacent said outer peripheral wall and before said shoulder for combustion.

Claim 3

The combustion system of claim 1 wherein said shoulder directs the resulting product of the first burn toward the center of said primary combustion chamber.

Claim 4

A combustion system for burning fluid waste with a fuel and gaseous oxidizer, comprising: a generally cylindrical primary combustion chamber having an outer peripheral wall; a burner mounted coaxially on one end of said primary combustion chamber and having a gaseous oxidizer manifold mounted on said one end, a venturi member extending through said one end between said manifold and said primary combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said primary combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said primary combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; a second combustion chamber disposed other end of said primary combustion chamber and forming a shoulder facing said burner; said burner having oxidizer supply means and waste supply means for supplying a gaseous oxidizer and waste to said waste conduit and manifold; said burner directing the flow of the waste and fuel-gaseous oxidizer mixture into said primary combustion chamber whereby the gaseous oxidizer, fuel and waste mix within the primary combustion chamber adjacent said outer peripheral wall and said shoulder for a first burn; and said shoulder directing the resulting product of the first burn toward the center of said primary combustion chamber for a second burn.

Claim 5

A combustion system for burning fluid waste with a fuel and gaseous oxidizer, comprising: a generally cylindrical primary combustion chamber having an outer peripheral wall; a burner mounted coaxially on one end of said primary combustion chamber and having a gaseous oxidizer manifold mounted on said one end, a venturi member extending through said one end between said manifold and said primary combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said primary combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said primary combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; a second combustion chamber disposed other end of said primary combustion chamber and forming a shoulder facing said burner; said burner having oxidizer supply means and waste supply means for supplying a gaseous oxidizer and waste to said waste conduit and manifold; said burner directing the flow of the waste and fuel-gaseous oxidizer mixture into said primary combustion chamber whereby the gaseous oxidizer, fuel and waste mix within the primary combustion chamber adjacent said outer peripheral wall and said shoulder for a first burn; and said shoulder directing the resulting product of the first burn toward the center of said primary combustion chamber for a second burn.

Claim 6

The combustion system of claim 3 wherein said nozzle directs the waste toward said shoulder.

Claim 7

The combustion system of claim 3 wherein said primary and secondary combustion chambers are lined with refractory resistant to thermal shock.

Claim 8

The combustion system of claim 3 which further includes: ignition means for providing a flame to ignite the gaseous oxidizer, fuel and waste mixture adjacent said shoulder.

Claim 9

The combustion system of claim 4 wherein the oxidizer supply means is coaxial and surrounds said waste supply means.

Claim 10

The combustion system of claim 7 wherein said venturi member has a deflector surface for directing the gaseous oxidizer and fuel mixture outwardly from said venturi member in a stream adjacent said outer wall of said primary combustion chamber.

Claim 11

A combustion system for burning fluid waste with a fuel and gaseous oxidizer comprising: a generally cylindrical primary combustion chamber having an outer peripheral wall; a burner assembly mounted on one end of said primary combustion chamber and having a gaseous oxidizer manifold mounted on said end, a venturi member extending through said end between said manifold and said primary combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said primary combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said primary combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; said venturi member coaxially of said waste and fuel conduits for supplying the gaseous oxidizer to said primary combustion chamber; said venturi member having a deflector surface for directing the gaseous oxidizer and fuel mixture outwardly from said venturi member in a stream adjacent said outer wall of said primary combustion chamber; said nozzle directing said waste in a hollow cone shaped pattern so as to intersect said outwardly directed stream of mixed gaseous oxidizer and fuel; said intersection causing the waste to mix and become entrained with the mixed gaseous oxidizer and fuel thereby forming a waste/gaseous oxidizer/fuel mixture for combustion; a secondary combustion chamber disposed on the other end of said primary combustion chamber and forming a shoulder facing said nozzle; and said shoulder directing the resulting product of the waste/gaseous oxidizer/fuel mixture toward the center of said primary combustion chamber for a second burn.

Claim 12

A combustion system for burning fluid waste with a fuel and gaseous oxidizer comprising: a generally cylindrical primary combustion chamber having an outer peripheral wall; a burner assembly mounted on one end of said primary combustion chamber and having a gaseous oxidizer manifold mounted on said end, a venturi member extending through said end between said manifold and said primary combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said primary combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said primary combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; said venturi member coaxially of said waste and fuel conduits for supplying the gaseous oxidizer to said primary combustion chamber; said venturi member having a deflector surface for directing the gaseous oxidizer and fuel mixture outwardly from said venturi member in a stream adjacent said outer wall of said primary combustion chamber; said nozzle directing said waste in a hollow cone shaped pattern so as to intersect said outwardly directed stream of mixed gaseous oxidizer and fuel; said intersection causing the waste to mix and become entrained with the mixed gaseous oxidizer and fuel thereby forming a waste/gaseous oxidizer/fuel mixture for combustion; a secondary combustion chamber disposed on the other end of said primary combustion chamber and forming a shoulder facing said nozzle; and said shoulder directing the resulting product of the waste/gaseous oxidizer/fuel mixture toward the center of said primary combustion chamber for a second burn.

Claim 13

The combustion system of claim 9 wherein said secondary combustion chamber includes an exhaust port for the exiting of flue gases resulting from the combustion and the system further including a heat exchanger mounted on said other end of said secondary combustion chamber for receiving said exiting flue gases.

Claim 14

The combination of claim 10 wherein a plurality of tubes are disposed within said heat exchanger.

Claim 15

The combination of claim 10 wherein said primary combustion chamber is a reactor for combustion of said waste.

Claim 16

A combustion system for burning fluid waste with a fuel and gaseous oxidizer, comprising: a combustion assembly having first and second end walls with a lateral wall forming a combustion chamber; a burner assembly having a gaseous oxidizer manifold mounted on said first end wall, a venturi member extending through said first end wall between said manifold and said combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; said venturi member further including a deflector surface to direct the mixture of fuel and gaseous oxidizer toward said lateral wall for mixing and combustion with the atomized waste from said nozzle; said lateral wall including a shoulder for causing turbulent flow of the product of said combustion; and said second end having an exhaust port for flue gases resulting from said burning of the waste.

Claim 17

A combustion system for burning fluid waste with a fuel and gaseous oxidizer, comprising: a combustion assembly having first and second end walls with a lateral wall forming a combustion chamber; a burner assembly having a gaseous oxidizer manifold mounted on said first end wall, a venturi member extending through said first end wall between said manifold and said combustion chamber, a waste conduit communicating with a nozzle in said venturi member for atomizing the waste in said combustion chamber, and a fuel conduit communicating with ports in said venturi member for mixing the fuel with the gaseous oxidizer; said venturi having apertures therethrough for the passage of the gaseous oxidizer from said manifold into said combustion chamber, said ports communicating with said apertures whereby the fuel is introduced into the stream of gaseous oxidizer passing through said apertures; said venturi member further including a deflector surface to direct the mixture of fuel and gaseous oxidizer toward said lateral wall for mixing and combustion with the atomized waste from said nozzle; said lateral wall including a shoulder for causing turbulent flow of the product of said combustion; and said second end having an exhaust port for flue gases resulting from said burning of the waste.

Claim 18

The combustion system of claim 13 further including a supply port extending through said lateral wall for supplying a secondary gaseous oxidizer to said combustion chamber.

Claim 19

The combustion system of claim 14 wherein said secondary gaseous oxidizer is introduced within said combustion chamber at an angle.

Claim 20

The combustion system of claim 14 wherein said secondary gaseous oxidizer is oxygen.

Claim 21

The combustion system of claim 14 wherein said secondary gaseous oxidizer is steam.

Claim 22

The combustion system of claim 17 wherein said steam is formed using the heat from the exiting flue gases.