30 results about "Solid fuel fire" patented technology

Methods for reducing and eliminating carbon dioxide from the emissions of solid fuel fired power plants, particularly coal fired power plants, and to sequester the carbon dioxide, typically by using existing equipment. In some embodiments, the methods involve pyrolyzing the solid fuel to remove volatile matter and using the volatile matter to produce hydrogen. Additionally, the methods may involve burning the solid fuel or pyrolized solid fuel at very fuel rich stoichiometric conditions. Sequestration may include the production of a carbon dioxide-containing solution and the pumping of the solution into the ground, particularly in areas high in limestone.

A thermally efficiency regenerative air preheater 250 extracts more thermal energy from the flue gas exiting a solid fuel fired furnace 26 by employing an alkaline injection system 276. This mitigates acid fouling by selectively injecting different sized alkaline particles 275 into the air preheater 250. Small particles provide nucleation sites for condensation and neutralization of acid vapors. Large particles are injected to contact and selectively adhere to the heat exchange elements 542 and neutralize liquid acid that condenses there. When the deposit accumulation exceeds a threshold, the apparatus generates and utilizes a higher relative percentage of large particles. Similarly, a larger relative percentage of small particles are used in other cases. Mitigation of the fouling conditions permits the redesign of the air preheater 250 to achieve the transfer of more heat from the flue resulting in a lower flue gas outlet temperature without excessive fouling.

The present invention is a solid fuel fire starter having a wicking element made of corrugated cardboard with an exposed top end for ignition by a flame source, a non-combustible housing surrounding the wicking element, the housing defining an open end for exposing the top end of the wicking element; and a paraffin wax reservoir within the housing integrally molded with the wicking element so that the wicking element conveys the paraffin wax by capillary action up into a flame.

An air fire lighter having fuel, an igniter and a ducted fan for igniting a solid fuel fire. The fuel travels through the fire lighter to a collar at a distal end of the fire lighter, transforming into a vapor that is ignited by an igniter. As the solid fuel begins to glow at the initiation of the fire, the fan is activated, shutting off the vapors from the fuel. The fan blows air through a chamber onto the fire, causing the fire to spread throughout the solid fuel, establishing and spreading the fire through an ignition period. The chamber has a volume and ducting for providing optimal airflow to the fire. The fan is battery-operated. The lighter is lightweight and compact with a swiveling handle that adjusts for optimal placement of the lighter for addressing the solid fuel, folding for portability and storage.

A pivot mounting apparatus 210 is provided for pivotally mounting to one another the coal nozzle tip 212 and coal nozzle body 214 of a pulverized solid fuel nozzle 208 of a pulverized solid fuel-fired furnace 10. The pivot mounting apparatus 210 includes a latch interconnecting assembly 220 that includes a pin 222 for insertion in a traversing movement through an insertion passage 224 which passes through both the through hole 216 of the coal nozzle tip 212 and the through hole 218 of the coal nozzle body 214 upon the mutually facing positioning of respective sides of the coal nozzle tip 212 and the coal nozzle body 214 with one another with their respective through holes 216, 218 both co-axial with an insertion axis IAX.

A thermally efficiency regenerative air preheater 250 extracts more thermal energy from the flue gas exiting a solid fuel fired furnace 26 by employing an alkaline injection system 276. This mitigates acid fouling by selectively injecting different sized alkaline particles 275 into the air preheater 250. Small particles provide nucleation sites for condensation and neutralization of acid vapors. Large particles are injected to contact and selectively adhere to the heat exchange elements 542 and neutralize liquid acid that condenses there. When the deposit accumulation exceeds a threshold, the apparatus generates and utilizes a higher relative percentage of large particles. Similarly, a larger relative percentage of small particles are used in other cases. Mitigation of the fouling conditions permits the redesign of the air preheater 250 to achieve the transfer of more heat from the flue resulting in a lower flue gas outlet temperature without excessive fouling.

An air fire lighter having fuel and a ducted axial fan for igniting a solid fuel fire. The fuel travels through the fire lighter to a distal end of the fire lighter and is ignited by an igniter. The flame is applied to solid fuel. As the solid fuel begins to glow at the initiation of the fire, the fan is activated, shutting off the vapors from the fuel. The fan blows air through a chamber onto the fire, causing the fire to spread throughout the solid fuel, establishing and spreading the fire through an ignition period. The chamber has a volume and ducting for providing optimal airflow to the fire. The fan is battery-operated. A further example embodiment of the air fire lighter has a pair of chamber barrels, a first barrel for the gaseous fuel and a second barrel housing the axial fan.

A firepot for a grilling device comprises one or more walls at least partially forming an outer boundary of the firepot. The firepot is structurally configured to hold at least partially ignited solid fuel. The firepot also comprises a floor defining, at least in part, a lower end of the firepot. The floor comprises one or more holes extending through the floor. Additionally, a portion of the one or more walls form a solid fuel delivery opening that comprises a solid fuel portal through which solid fuel is deliverable to an interior of the firepot. A heating element mount is positioned to hold a heating element within the interior of the firepot.

A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is particularly suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system of the type employed in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle tip (12) when so employed is operative to minimize low and negative, i.e., recirculation, velocity regions of the exit plane of the MRFC solid fuel nozzle tip (12), and to reduce available deposition surface on the MRFC solid fuel nozzle tip (12), and to vary the nozzle tip (12) / solid fuel nozzle (34) thermal conditions to keep the 'hot' solid fuel particulate matter from depositing on available metal platework surface of the MRRC solid fuel nozzle tip (12). The MRFC solid fuel nozzle tip (12) includes fuel air shroud means (46), primary air shroud means (48) located within the fuel air shroud means (46), fuel air shroud support means (50) operative for supporting the primary air shroud means (48) relative to the fuel air shroud means (46), and splitter plate means (52) mounted in supported relation within the primary air shroud means (48).

The invention provides a device for detecting solid fuel combustion products at different space positions on line. The combustion products at different axial and radial positions of solid fuel flame can be sampled by adjusting the position of the pointed end of a conical probe relative to the solid fuel flame; a two-dimensional movable platform is used, and richer and more accurate space distribution information of the solid fuel combustion products can be obtained more conveniently and flexibly, which is beneficial for learning combustion chemical reaction mechanism of the solid fuel and optimizing the combustion products; the axial and radial positions of the conical probe located on the solid fuel flame can be controlled more accurately through a driver and a controller, and sampling and detecting accuracy and convenience are further improved; multiple inorganic substances and multiple organic substances including light dydrocarbon and polycyclic aromatic hydrocarbon can be conveniently and fast detected in real time on line by using a six-way valve, an analytical instrument and other devices to obtain qualitative and quantitative analysis results.

Provided are a burner, a burner burning solid fuel, a boiler burning solid fuel, a boiler, and a method for operating the boiler. The burner is provided with a fuel nozzle (51) capable of blowing fuel gas mixed with pulverized coal and primary air. and a secondary air nozzle (52) capable of blowing secondary air from the outside of the fuel nozzle (51), and a flame stabilizer (51) is set on the axial center side of the front end of the fuel nozzle (51), and the fuel nozzle A straightening member (55) is provided between the inner wall surface of (51) and the flame stabilizer (54), thereby realizing proper flow of fuel gas mixed with solid fuel and air.

This invention discloses a solid fuel torch which cracks the problems as instable burning, short-time burning, light-color flame and low visibility when the torch is under low temperature, voltage and heavy wind. The torch includes the fuel bin that loads the solid or gel fuel, the burning unit that connects to the top of the fuel bin. The side wall of the burning unit has holes and the inside sets heat-feedback unit of which the bottom attaches to the fuel. The pusher which connects to the bottom of fuel bin pushes the fuel forward the burning unit. The structure of multi-hole and heat-feedback can keep the continue burning and improve the flame burning thickness when the torch is under heavy wind, low temperature and voltage so as to improve the flame color and visibility and satisfy many displaying function.

The invention relates to a method for preparing zeolite FAU / mullite and LTA / mullite composite zeolite hollow microspheres by inducing in-situ hydrothermal crystallization with fly ash hollow microspheres as raw materials. Fly ash is the fine dust emitted by coal-fired power plants and other solid fuels, and the discharged solid waste contains a large number of glass bodies with hollow structures, called fly ash hollow microspheres. In the present invention, two different small particle zeolites, FAU or LTA, are used as crystal seeds, and are hydrothermally crystallized in an aluminum-containing or aluminum-free NaOH alkali solution, so that the active silicon-aluminum component in the fly ash hollow microspheres is crystallized into zeolite , while the inert mullite cannot be converted, and the original hollow structure is maintained, so that the composite hollow microspheres supported by the outer layer of dense zeolite membrane and the inner layer of mullite macropores are prepared.

Method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding means (11), to be fed to an inlet opening (lla) in a burner device (10), where the burner device (10) is caused to comprise a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The invention is characterised in that the first inlet (13a) for oxidant is caused to be arranged in the form of a first opening arranged by the inlet opening, through which the oxidant is caused to flow out, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe and out through the burner orifice (17), and in that water vapour is added to the oxi not dant before the oxidant reacts with the fuel.

The invention relates to the technical field of boiler equipment, in particular to a solid fuel gasification incineration boiler. The solid fuel gasification incineration boiler is simple in structure, few in arranged heated faces and capable of saving investment cost and operation cost, and the boiler is environmentally friendly and efficient. A feeding hopper is connected with a hearth, the hearth comprises a front arch, a first rear arch and a second rear arch which are sequentially and obliquely arranged, the first rear arch is lower than the front arch and the second rear arch, a core combustion area is formed by the front arch and the first rear arch, a smoke internal circulation loop is formed by the first rear arch and the second rear arch, and a clearance is reserved between the lower end of the first rear arch and the second rear arch. An air distribution bed is arranged at the position, below the inclined face of the lower portion of the first rear arch, of the bottom of the hearth, the lower end of the air distribution bed is connected with an air chamber, and a main combustion area is formed by the front arch at the upper end of the first rear arch and the second rear arch. A hearth outlet is connected with a cyclone separator, the particle outlet end of the cyclone separator is connected with one end of a loop flue, the smoke outlet end of the cyclone separator is connected with a tail flue, and the other end of the loop flue is connected with the smoke internal circulation loop.