Apparatus for treating raw material with a treating gas

Claim 1

In an apparatus for treating raw material with a treating gas comprising a mixing chamber wherein a fuel is mixed with oxygen or air to form a mixture gas, a combustion chamber connected to said mixing chamber and having an inner space large enough in volume for the complete combustion of the mixture gas to generate a combustion gas, and a treating chamber wherein a raw material is converted into a desired product by the action of a treating gas; an improvement comprising a conditioning chamber connected between said combustion chamber and treating chamber and separated from said treating chamber; said combustion chamber having a cylindrical inner space with the entire cylindrical exit end thereof directly opening into and connected, without any intervening restrictive structure, to the entrance end of the interior of said conditioning chamber; said conditioning chamber having at least one of its cross-sectional dimensions larger than that of said combustion chamber so that the inner space of said conditioning chamber has a volume of one and one-half to six times larger than that of said cylindrical space of said combustion chamber and having means defining at least one gas inlet in said conditioning chamber for admitting at least one additional gas to be mixed with the combustion gas in said conditioning chamber to prepare the treating gas, said gas inlet being spaced from and generally facing said combustion chamber exit end so that the combustion gas and the additional gas flow in opposite directions into said conditioning chamber to effect uniform intermixing thereof to form the treating gas and having a treating gas outlet for discharging the treating gas from said conditioning chamber; and said treating chamber having one inlet connected to said treating gas outlet for receiving the treating gas and having spaced therefrom another inlet for receiving raw material which is to be treated with the treating gas.

Claim 6

An apparatus for treating raw material with a conditioned treating gas comprising: means defining a combustin chamber having an inlet end receptive of combustible products, means therein for effecting burning of the combustible products and evolving therefrom products of combustion, and an outlet end terminating in the entire open end of said combustion chamber through which the products of combustion are discharged from said combustion chamber; means including means defining a conditioning chamber having an inlet portion directly opening without any intervening restrictive structure into said combustion chamber open outlet end to receive therefrom the products of combustion, an outlet portion, a gas inlet connectable to a source of gas for introducing gas into said conditioning chamber and being spaced from and generally facing said combustion chamber outlet end so that the products of combustion and the gas from said source flow in opposite directions into said conditioning chamber to promote uniform intermixing thereof, said conditioning chamber having at least one of its cross-sectional dimensions larger that that of said combustion chamber and having a volume sufficiently large and at least one-half times larger than the volume of said combustion chamber for effecting uniform mixing of the products of combustion with gas introduced through said gas inlet to obtain a conditioned treating gas; and means defining a treating chamber having one inlet connected to said outlet portion of said conditioning chamber for receiving said treating gas and having spaced therefrom another inlet for receiving raw material to be treated with said treating gas; whereby raw material fed into said treating chamber is uniformly treated therein with conditioned treating gas delivered from said conditioning chamber.

Claim 7

An apparatus for treating raw material with a conditioned treating gas comprising: means defining a combustin chamber having an inlet end receptive of combustible products, means therein for effecting burning of the combustible products and evolving therefrom products of combustion, and an outlet end terminating in the entire open end of said combustion chamber through which the products of combustion are discharged from said combustion chamber; means including means defining a conditioning chamber having an inlet portion directly opening without any intervening restrictive structure into said combustion chamber open outlet end to receive therefrom the products of combustion, an outlet portion, a gas inlet connectable to a source of gas for introducing gas into said conditioning chamber and being spaced from and generally facing said combustion chamber outlet end so that the products of combustion and the gas from said source flow in opposite directions into said conditioning chamber to promote uniform intermixing thereof, said conditioning chamber having at least one of its cross-sectional dimensions larger that that of said combustion chamber and having a volume sufficiently large and at least one-half times larger than the volume of said combustion chamber for effecting uniform mixing of the products of combustion with gas introduced through said gas inlet to obtain a conditioned treating gas; and means defining a treating chamber having one inlet connected to said outlet portion of said conditioning chamber for receiving said treating gas and having spaced therefrom another inlet for receiving raw material to be treated with said treating gas; whereby raw material fed into said treating chamber is uniformly treated therein with conditioned treating gas delivered from said conditioning chamber.