Method and kiln for the firing of substantially flat base ceramic articles

A method for the firing of substantially flat base ceramic articles (BC);

• the method comprises:
• at least one conveying step, during which the base ceramic articles (BC) are conveyed along a given path (P), which extends from an input station to an output station through a firing chamber of a kiln;
• a first feeding step, during which a fuel mixture, which comprises at least one first fuel, is fed towards at least one burner;
• a second feeding step, during which an oxidizer is fed towards said at least one burner;
• a combustion step, during which a combustion mixture comprising said fuel mixture and the oxidizer is burnt in said burner;
• at least one firing step, which is at least partially simultaneous with the combustion step and during which said at least one burner heats said firing chamber so as to fire the base ceramic articles (BC) inside the firing chamber and obtain ceramic products (PC);
• a detection step, during which a detection device detects the temperature inside the firing chamber;
• at least one first adjustment step, which is at least partially simultaneous with the combustion step and during which the fuel mixture flow rate and/or the oxidizer flow rate fed to said at least one burner during the first and/or the second feeding step is adjusted depending on the temperature detected inside the firing chamber during said detection step;
• a fuel mixture identification step, during which an identification unit estimates a quantity correlated with the density of the fuel mixture in order to assess the type of fuel mixture (in particular, at least the type of said at least one first fuel comprised in said fuel mixture);
• a first flow rate measuring step, during which a first flow rate measuring device estimates a fuel mixture flow rate fed to said at least one burner during the first feeding step;
• a second flow rate measuring step, during which a second flow rate measuring device estimates an oxidizer flow rate fed to said at least one burner during the second feeding step;
• at least one second adjustment step, during which the oxidizer flow rate fed to said at least one burner during the second feeding step is adjusted depending on the type of fuel mixture estimated during said fuel mixture identification step and depending on the fuel mixture flow rate estimated during the first flow rate measuring step and on the oxidizer flow rate estimated during said at least one second measuring step.