A cleaning device for a mechanical cleaning of a gas nozzle of a protective gas welding burner, provided with a controlled, rotatably driven cleaning head having at least one co-rotating cleaning element, and with a supplying and centering apparatus for a coaxial positioning of the gas nozzle with respect to the axis of rotation of the cleaning head in the region of at least one cleaning element. The cleaning head has two cleaning arms creating a scissors-form with the cleaning arms, which are suspended in a freely swinging manner on a pivot bearing arranged transversely to the axis of rotation in the cleaning head. Respective centrifugal weights are arranged on the cleaning arms on the lower regions facing away from the gas nozzle, so that the cleaning scissors are spread apart with a rotation of the of the cleaning head.

A cleaning device for a mechanical cleaning of a gas nozzle of a protective gas welding burner, provided with a controlled, rotatably driven cleaning head having at least one co-rotating cleaning element, and with a supplying and centering apparatus for a coaxial positioning of the gas nozzle with respect to the axis of rotation of the cleaning head in the region of at least one cleaning element. The cleaning head has two cleaning arms creating a scissors-form with the cleaning arms, which are suspended in a freely swinging manner on a pivot bearing arranged transversely to the axis of rotation in the cleaning head. Respective centrifugal weights are arranged on the cleaning arms on the lower regions facing away from the gas nozzle, so that the cleaning scissors are spread apart with a rotation of the of the cleaning head.

A burner head that constitutes a combustion chamber for an exhaust gas processing apparatus by being attached to an upper portion of a combustion chamber main body is provided. The burner head includes a chassis which has a cylindrical portion having a lower opening and in which a fastening module for removably fastening to the combustion chamber main body is provided, a fuel nozzle that blows fuel into the cylindrical portion, a combustion supporting gas nozzle that blows combustion supporting gas into the cylindrical portion, a processing gas nozzle that blows processing gas into the cylindrical portion, and a pilot burner that ignites the fuel and/or the combustion supporting gas.

A burner head that constitutes a combustion chamber for an exhaust gas processing apparatus by being attached to an upper portion of a combustion chamber main body is provided. The burner head includes a chassis which has a cylindrical portion having a lower opening and in which a fastening module for removably fastening to the combustion chamber main body is provided, a fuel nozzle that blows fuel into the cylindrical portion, a combustion supporting gas nozzle that blows combustion supporting gas into the cylindrical portion, a processing gas nozzle that blows processing gas into the cylindrical portion, and a pilot burner that ignites the fuel and/or the combustion supporting gas.

A method of cleaning a gas inlet nozzle of an abatement burner combustion chamber. The abatement burner intermittently receives gas for combustion from a feed process. The nozzle comprises a cleaning mechanism including a movable cleaning member for physically removing unwanted deposits from the nozzle. The cleaning member is movable from a retracted first position wherein the cleaning member is outside a path of a flame associated with the nozzle, to a second cleaning position wherein the cleaning member is in a path of the flame associated with the nozzle. The method comprises the steps of: a. identifying when the nozzle is out of use; b. moving the cleaning member from the first position to the second position while the nozzle is out of use; and c. returning the cleaning member to the first position before nozzle is in use.

A method of cleaning a gas inlet nozzle of an abatement burner combustion chamber. The abatement burner intermittently receives gas for combustion from a feed process. The nozzle comprises a cleaning mechanism including a movable cleaning member for physically removing unwanted deposits from the nozzle. The cleaning member is movable from a retracted first position wherein the cleaning member is outside a path of a flame associated with the nozzle, to a second cleaning position wherein the cleaning member is in a path of the flame associated with the nozzle. The method comprises the steps of: a. identifying when the nozzle is out of use; b. moving the cleaning member from the first position to the second position while the nozzle is out of use; and c. returning the cleaning member to the first position before nozzle is in use.

An inlet assembly for a burner includes a manifold having an inlet aperture and a coaxially aligned outlet aperture, the manifold having a nozzle bore extending along a longitudinal axis between the inlet aperture and the outlet aperture for conveying an effluent gas from an inlet pipe coupleable with the inlet aperture to the outlet aperture for delivery to a combustion chamber of the burner. A nozzle bore scraper is housed within the nozzle bore. An actuator is operable to reciprocate the nozzle bore scraper relative to the nozzle bore, the nozzle bore scraper reciprocating along the longitudinal axis within the nozzle bore between a rest position and an actuated position to reduce effluent gas deposits within the nozzle bore.

An inlet assembly for a burner includes a manifold having an inlet aperture and a coaxially aligned outlet aperture, the manifold having a nozzle bore extending along a longitudinal axis between the inlet aperture and the outlet aperture for conveying an effluent gas from an inlet pipe coupleable with the inlet aperture to the outlet aperture for delivery to a combustion chamber of the burner. A nozzle bore scraper is housed within the nozzle bore. An actuator is operable to reciprocate the nozzle bore scraper relative to the nozzle bore, the nozzle bore scraper reciprocating along the longitudinal axis within the nozzle bore between a rest position and an actuated position to reduce effluent gas deposits within the nozzle bore.

A detoxifying device of a structure wherein the deposits can be removed cleanly, without leaving residue, even for a nozzle that is provided with a narrow diameter portion and a wide diameter portion that is further to the downstream side than the narrow diameter portion, and to provide a nozzle scraper used in said detoxifying device.

A cleaning device for a mechanical cleaning of a gas nozzle of a protective gas welding burner, provided with a controlled, rotatably driven cleaning head having at least one co-rotating cleaning element, and with a supplying and centering apparatus for a coaxial positioning of the gas nozzle with respect to the axis of rotation of the cleaning head in the region of at least one cleaning element. The cleaning head has two cleaning arms creating a scissors-form with the cleaning arms, which are suspended in a freely swinging manner on a pivot bearing arranged transversely to the axis of rotation in the cleaning head. Respective centrifugal weights are arranged on the cleaning arms on the lower regions facing away from the gas nozzle, so that the cleaning scissors are spread apart with a rotation of the of the cleaning head.