Gas nozzle cleaning method and system

A method of cleaning a gas inlet nozzle of an abatement burner of a combustion chamber, the abatement burner intermittently receiving gas for combustion from a feed process, the nozzle comprising a cleaning mechanism including a movable cleaning member for removing unwanted deposits from the nozzle, the cleaning member being 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 the path of the flame associated with the nozzle;

• the method comprising the steps of:
• a. identifying a step in the feed process when gas is provided to the abatement burner, a flame is provided at the nozzle, and a radiant burner of the abatement burner is on;
• b. directing the movement of the cleaning member to ensure the cleaning member is in the first position during the identified step;
• c. identifying a second step in the feed process when gas is provided to the abatement burner, there is no flame provided at the nozzle, and the radiant burner is on;
• and
• d. moving the cleaning member to the second cleaning position during the second step.

A cleaning system for a gas inlet nozzle of an abatement system combustion chamber, the abatement system comprising a radiant burner, the abatement system intermittently receiving exhaust gas for combustion from a feed process, the cleaning system comprising:

• a cleaning mechanism associated with the nozzle including a movable cleaning member for removing unwanted deposits from the nozzle, the cleaning member being movable from a first position wherein the cleaning member is outside a path of the flame associated with the nozzle to a second position wherein the cleaning member is in the path of the flame associated with the nozzle;
• wherein the system is configured to coordinate movement of the cleaning member such that:
• the cleaning member is in the first position when the flame is not present at the nozzle while the radiant burner is on;
• and
• the cleaning member is in the second position when the flame is not present at the nozzle and the radiant burner is on.