Provided is a gasification furnace that can efficiently gasify a biomass resource. The gasification furnace may include a furnace body including a cylindrical storing unit that may store a biomass resource, an oxidizer supplying unit that may supply an oxidizer into the furnace body, a shaft extended in a vertical direction in the storing unit and including an oxidizer supply path through which the oxidizer may be passed, an oxidizer supply tube that may include an oxidizer channel that communicates between a supply port for the oxidizer opened in an outer surface in contact with the biomass resource in the storing unit and the oxidizer supply path of the shaft, and a driving unit that may rotate the shaft with the vertical direction in the storing unit set as a rotation axis to thereby turn the oxidizer supply tube in the storing unit.

Provided is a gasification furnace that can efficiently gasify a biomass resource. The gasification furnace may include a furnace body including a cylindrical storing unit that may store a biomass resource, an oxidizer supplying unit that may supply an oxidizer into the furnace body, a shaft extended in a vertical direction in the storing unit and including an oxidizer supply path through which the oxidizer may be passed, an oxidizer supply tube that may include an oxidizer channel that communicates between a supply port for the oxidizer opened in an outer surface in contact with the biomass resource in the storing unit and the oxidizer supply path of the shaft, and a driving unit that may rotate the shaft with the vertical direction in the storing unit set as a rotation axis to thereby turn the oxidizer supply tube in the storing unit.

Low carbon atomic number mixed alcohol gel paste or pancake and straw charcoal grate combination of ignition agent, with fossil fuels such as bituminous coal lignite, straw branches and other agricultural and forestry waste, polyolefin and other synthetic organic polymer waste, other combustible solid and semi-solid low-value raw fuels, with non-toxic auxiliary materials carefully crafted high volatile column ignition coal and lower coal, are stacked in the insulation—fire-resistant furnace core. Throw in a small strip of burning paper to ignite the igniter from the top, that is, start long flame combustion, followed by the ignition coal on fire, its surface red hot coal layer will be designed to move down more quickly and gradually, to the lower coal on fire.

Low carbon atomic number mixed alcohol gel paste or pancake and straw charcoal grate combination of ignition agent, with fossil fuels such as bituminous coal lignite, straw branches and other agricultural and forestry waste, polyolefin and other synthetic organic polymer waste, other combustible solid and semi-solid low-value raw fuels, with non-toxic auxiliary materials carefully crafted high volatile column ignition coal and lower coal, are stacked in the insulation—fire-resistant furnace core. Throw in a small strip of burning paper to ignite the igniter from the top, that is, start long flame combustion, followed by the ignition coal on fire, its surface red hot coal layer will be designed to move down more quickly and gradually, to the lower coal on fire.

A combustion chamber for use in the incineration of waste products includes an inner refractory wall which extends vertically within an outer protective wall in a spaced relationship so as to define a plenum therebetween. The inner refractory wall is constructed using a plurality of precast, refractory blocks which are stacked and arranged to define a cylindrical interior cavity. The refractory blocks include mating features on adjacent surfaces to facilitate assembly and provide structural support. For additional support, selected blocks are fixedly connected to vertical support tubes by metal tie-back anchors. To facilitate combustion, a selection of the blocks is precast with a tuyere hole in order to deliver a uniform and balanced supply of air from the plenum into the interior cavity. The precast nature of the refractory blocks enables the inner refractory wall to be constructed with great precision, thereby optimizing incineration and minimizing material degradation.

A ground supported power boiler is described combining a refractory lined and insulated conical floor; an insulated cylindrical combustion chamber; a cylindrical furnace with water tube wall; a rectangular convective section; a single vertical steam drum; tangential injection of the fuel and combustion air; means for fluidizing the fuel bed; means for selectively stripping particulates from the flue gases; multi-stage particulate stripping and filtering from flue gases, means for using the walls of steam drum as steam/water droplet separator, means for recirculating and capturing heat from the flue gases; means for pressurizing the interior of the boiler above atmospheric pressure; means for heating and drying fuel prior to feeding the fuel to the boiler; means for creating hydrogen shift reaction; means for eliminating any need for sootblowing; and designed to not require the use of an induced draft fan.

A ground supported power boiler is described combining a refractory lined and insulated conical floor; an insulated cylindrical combustion chamber; a cylindrical furnace with water tube wall; a rectangular convective section; a single vertical steam drum; tangential injection of the fuel and combustion air; means for fluidizing the fuel bed; means for selectively stripping particulates from the flue gases; multi-stage particulate stripping and filtering from flue gases, means for using the walls of steam drum as steam/water droplet separator, means for recirculating and capturing heat from the flue gases; means for pressurizing the interior of the boiler above atmospheric pressure; means for heating and drying fuel prior to feeding the fuel to the boiler; means for creating hydrogen shift reaction; means for eliminating any need for sootblowing; and designed to not require the use of an induced draft fan.

The gas swirling state determination system (10) determines the quality of the swirling state of gas that swirls around the central axis. The gas swirling state determination system (10) includes an imaging device (39), an information processing device (11), and a display device (42). The imaging device (39) captures swirling gas from a direction along the central axis to acquire a still image. The information processing device (11) includes a calculation unit (40), a smoothing unit (41), and a determination unit (43). The display device (42) displays a determination result.

The gas swirling state determination system (10) determines the quality of the swirling state of gas that swirls around the central axis. The gas swirling state determination system (10) includes an imaging device (39), an information processing device (11), and a display device (42). The imaging device (39) captures swirling gas from a direction along the central axis to acquire a still image. The information processing device (11) includes a calculation unit (40), a smoothing unit (41), and a determination unit (43). The display device (42) displays a determination result.

A method of operating an incinerator (100) for solid fuel, said incinerator (100) comprising a device (160) for separating ash from flue gas, which method comprises the step of collecting ash deposits originating from the flue gas comprising ash from the incinerator (100) resulting in collected ash; To improve the flowability of the ash collected, the method comprises the step of introducing a powdery additive material comprising i) clay and ii) calcium carbonate into the flue gas comprising ash wherein the flue gas comprising ash has at the location where the additive material is introduced a temperature of at least 700° C., wherein the additive is introduced with a rate R of at least 0.1 times the mass of ash in the stream of flue gas comprising ash.