A cement kiln burner device includes a powdered-solid-fuel flow channel having means for swirling a powdered-solid-fuel flow; a first air flow channel placed outside the powdered-solid-fuel flow channel having means for swirling an air flow; a second air flow channel placed outside the first air flow channel having means for straightly forwarding an air flow; a third air flow channel placed inside the powdered-solid-fuel flow channel having means for swirling an air flow; and a combustible-solid-waste flow channel placed inside the third air flow channel. The second air flow channel includes an opening portion forming a port for injecting an air flow, and a closed portion covered for preventing an air flow from passing therethrough. The opening portion and the closed portion are alternately arranged in a circumferential direction.

A pyrolysis waste-to-energy conversion system has a muffle furnace housing a rotating retort drum within the furnace and having an inlet sleeve and an outlet sleeve extending through inlet and outlet ends of the muffle furnace. A rotating retort drum drive applies rotary drive to the inlet rotating retort drum sleeves and an in-feed auger is within a tube within the inlet sleeve. An out-feed auger is within a tube within the outlet sleeve and arranged to deliver char and pyrolysis syngas to a char processing system and a syngas processing system. The inlet sleeve and said outlet sleeve are arranged to provide a gas seal to prevent air ingress or syngas egress to and from the rotating retort drum. A gas cleaning system has a cracking tower arranged to retain inlet gas at an elevated temperature for a residence time, and a gas quench and scrubber system.

A pyrolysis waste-to-energy conversion system has a muffle furnace housing a rotating retort drum within the furnace and having an inlet sleeve and an outlet sleeve extending through inlet and outlet ends of the muffle furnace. A rotating retort drum drive applies rotary drive to the inlet rotating retort drum sleeves and an in-feed auger is within a tube within the inlet sleeve. An out-feed auger is within a tube within the outlet sleeve and arranged to deliver char and pyrolysis syngas to a char processing system and a syngas processing system. The inlet sleeve and said outlet sleeve are arranged to provide a gas seal to prevent air ingress or syngas egress to and from the rotating retort drum. A gas cleaning system has a cracking tower arranged to retain inlet gas at an elevated temperature for a residence time, and a gas quench and scrubber system.

The invention relates to a gas burner comprising: an injection holder (2) with a gas injector (2.1); a burner body (3) adapted to be arranged at the injection holder (2), the burner body (3) comprising an opening (3.1) for enabling a gas flow from said gas injector (2.1) and a primary air flow in an area above said burner body (3); a burner cap (4) adapted to be arranged at the top side of the burner body (3), the burner cap (4) comprising a bottom portion (4.1) and a circumferential surface portion (4.2) protruding downwardly from said bottom portion (4.1), wherein the circumferential surface portion (4.2) comprises a plurality of flame ports (4.3) and said burner body (3) and said burner cap (4) confine a chamber (5) for providing a combustion mixture of gas and primary air; wherein the burner body (3) comprises a bulge-shaped protrusion (3.5) forming a continuous ridge below the burner cap (4) at least in the area in which the flame ports (4.3) are provided, said bulge-shaped protrusion (3.5) reducing the distance between the burner cap (4) and the burner body (3) in the area of the flame ports (4.3).

The invention relates to a gas burner comprising: an injection holder (2) with a gas injector (2.1); a burner body (3) adapted to be arranged at the injection holder (2), the burner body (3) comprising an opening (3.1) for enabling a gas flow from said gas injector (2.1) and a primary air flow in an area above said burner body (3); a burner cap (4) adapted to be arranged at the top side of the burner body (3), the burner cap (4) comprising a bottom portion (4.1) and a circumferential surface portion (4.2) protruding downwardly from said bottom portion (4.1), wherein the circumferential surface portion (4.2) comprises a plurality of flame ports (4.3) and said burner body (3) and said burner cap (4) confine a chamber (5) for providing a combustion mixture of gas and primary air; wherein the burner body (3) comprises a bulge-shaped protrusion (3.5) forming a continuous ridge below the burner cap (4) at least in the area in which the flame ports (4.3) are provided, said bulge-shaped protrusion (3.5) reducing the distance between the burner cap (4) and the burner body (3) in the area of the flame ports (4.3).

An evaporation type burner which can attain light-up and stable combustion of fuel at an early stage by evenly distributing fuel supplied from a fuel supply part to an impregnation member (wick) inside the impregnation member should be provided includes an exudation prevention member having lower fuel permeability than that of the impregnation member in a surface region of the impregnation member opposite to a infiltration region, which is a surface region of the impregnation member where the fuel infiltrates from the fuel supply part into the impregnation member, across the impregnation member. Preferably, a part of the exudation prevention member is embedded inside of the impregnation member, and another part projects from a surface of the impregnation member. More preferably, the exudation prevention member is constituted as a part of the partition member disposed on a downstream side of the impregnation member in a combustion chamber.

A combustion system includes a premix blower system and the premix blower system includes an additional air inlet with an adjustable opening which includes an additional reversibly pluggable air intake. The adjustable opening of the additional air inlet can be opened at higher elevations to compensate for thinner air.

The present invention discloses a cooker burner. The cooker burner comprises a base (1), a first ejector passage (3), a plurality of primary air passages (4), a cap (5) and a transfer passage (6), the base (1) has a chamber (11) and at least one first ejector (12); the first ejector passage (3) has a central chamber (311) and a peripheral chamber (312), the peripheral chamber (312) is used for making primary air around the periphery of the central chamber (311) uniform. With the design of the first ejector passage, the gas in the central chamber is more directly mix with the primary air in the peripheral chamber, improving the mixing uniformity and air intake rate around the periphery of the central chamber. Therefore, yellow flame and backfire can be avoided.

A burner assembly for an oven appliance, the oven appliance defining a vertical direction, a lateral direction, and a transverse direction and including a cooking chamber, the burner assembly including a gas burner provided in the cooking chamber, the gas burner defining a clean air port, and a shutter housing attached to a first end of the gas burner, the shutter housing defining an air inlet in fluid communication with the clean air port, and wherein the air inlet is positioned below the clean air port along the vertical direction.

A burner assembly for an oven appliance, the oven appliance defining a vertical direction, a lateral direction, and a transverse direction and including a cooking chamber, the burner assembly including a gas burner provided in the cooking chamber, the gas burner defining a clean air port, and a shutter housing attached to a first end of the gas burner, the shutter housing defining an air inlet in fluid communication with the clean air port, and wherein the air inlet is positioned below the clean air port along the vertical direction.