The present disclosure provides methods and systems for modulating a solid-fuel-based combustion process. A current instantaneous heat release for a solid-fuel-based heat generator is determined at a virtual sensor. The current instantaneous heat release is compared to a current firing rate demand. When the current instantaneous heat release does not correspond to the current firing rate demand, an underfire air flow of the heat generator is adjusted.

In a method for the combustion management in firing installations, in which a primary combustion gas quantity is conveyed through the fuel into a primary combustion area, part of the waste gas flow is extracted in the rear grate area and returned to the combustion process in the form of internal recirculation gas. In this case, no secondary combustion air is supplied between the grate and the supply of the internal recirculation gas. A firing installation for carrying out this method features nozzles above the firing grate such that no air supply is arranged between the firing grate and the nozzles.

In a method for the combustion management in firing installations, in which a primary combustion gas quantity is conveyed through the fuel into a primary combustion area, part of the waste gas flow is extracted in the rear grate area and returned to the combustion process in the form of internal recirculation gas. In this case, no secondary combustion air is supplied between the grate and the supply of the internal recirculation gas. A firing installation for carrying out this method features nozzles above the firing grate such that no air supply is arranged between the firing grate and the nozzles.

An incinerator has a hollow main body with a front wall, a rear wall, a first side wall, a second side wall, a top wall, and a bottom wall. The front wall has a first opening and a second opening formed therein. The second opening is disposed adjacent to the bottom wall between the first opening and the bottom wall. The rear wall has at least one inlet aperture formed adjacent to the bottom wall. The first side wall and the second side wall each have at least one outlet aperture disposed adjacent to the top wall. The incinerator further has a door that is movable between an opened position, whereby waste may be disposed on a grate suspended inside of the main body, and a closed position, whereby the door may cover the first opening.

An incinerator has a hollow main body with a front wall, a rear wall, a first side wall, a second side wall, a top wall, and a bottom wall. The front wall has a first opening and a second opening formed therein. The second opening is disposed adjacent to the bottom wall between the first opening and the bottom wall. The rear wall has at least one inlet aperture formed adjacent to the bottom wall. The first side wall and the second side wall each have at least one outlet aperture disposed adjacent to the top wall. The incinerator further has a door that is movable between an opened position, whereby waste may be disposed on a grate suspended inside of the main body, and a closed position, whereby the door may cover the first opening.

The present application discloses a grate bar for a thrust grate of a furnace. The grate bar comprises an elongated recess at a first side of the grate bar. The elongated recess comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. An engaging element is provided at a second side of the grate bar, which is opposite to the first side. The engaging element comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. The elongated recess is shaped such that a corresponding neighbouring engaging element of a neighbouring part is movable within the elongated recess in the longitudinal direction relative to the grate bar. The grate bar further comprises two actuating surfaces at a bottom side of the grate bar for taking up a protrusion of a grate.

The present application discloses a grate bar for a thrust grate of a furnace. The grate bar comprises an elongated recess at a first side of the grate bar. The elongated recess comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. An engaging element is provided at a second side of the grate bar, which is opposite to the first side. The engaging element comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. The elongated recess is shaped such that a corresponding neighbouring engaging element of a neighbouring part is movable within the elongated recess in the longitudinal direction relative to the grate bar. The grate bar further comprises two actuating surfaces at a bottom side of the grate bar for taking up a protrusion of a grate.

A gas burner includes a burner body that defines a plurality of naturally aspirated flame ports and a plurality of forced induction flame ports. A first gas orifice is mounted to an injet body such that the first gas orifice is oriented for directing a flow of gaseous fuel towards the plurality of naturally aspirated flame ports. A second gas orifice and the injet body form an eductor mixer within a mixing chamber of the injet body. A mixed outlet nozzle is mounted to the injet body at the mixing chamber such that the mixed outlet nozzle is oriented for directing a mixed flow of air and gaseous fuel from the mixing chamber towards the plurality of forced induction flame ports.

A multiple piece firebox for placement within the kettle of a fuel-burning cooking vessel comprising a base formed of a refractory material on the floor of the kettle supporting an upper chamber formed of a refractory material. In a preferred embodiment, a plurality of mating side wall members define the upper chamber.

A multiple piece firebox for placement within the kettle of a fuel-burning cooking vessel comprising a base formed of a refractory material on the floor of the kettle supporting an upper chamber formed of a refractory material. In a preferred embodiment, a plurality of mating side wall members define the upper chamber.