The present invention is intended to provide a hybrid combustion apparatus using the pyrolysis of water and combustion air, in which a combustion chamber is defined by a double wall and divided into a primary combustion chamber configured to combust waste and a secondary combustion chamber configured to combust exhaust gas, and the size (diameter) of a combustion unit through which waste is configured to be different from that of the combustion chamber in which a flame is located, so that combustion temperature is further increased by introducing air, so that heated due to proximity to a flame, as combustion air, combustible waste is combusted at an ultrahigh temperature by pyrolyzing water and combustion air by means of a high combustion temperature, and so that complete combustion is achieved by increasing the time for which a flame stays within the combustion chamber, thereby discharging clean exhaust gas.

A portable, yard waste incinerator system that includes a transport vehicle with a large burn tank configured for burning yard waste. Located inside the burn tank is a primary burner that forms an inner primary combustion chamber and an outer secondary chamber. Propane fuel is connected to an external propane gas source which delivers propane to the primary combustion chamber. The primary burner includes a plurality of holes that allows flames and hot gases from the fire and heat from the primary combustion chamber to extend into a secondary combustion chamber. The system also includes a vacuum system connected to the burn tank which picks up small, loose combustible debris from the yard and delivers the debris and oxygen to the secondary combustion chamber. The system also includes an optional electric generator that energizes the vacuum system and an optional shredder that delivers shredded yard waste to the secondary burning chamber.

A stoker-type incinerator includes: a recirculated exhaust gas supply unit which allows exhaust gas resulting from treating combustion gas to reflux to a combustion gas channel via a recirculated exhaust gas nozzle provided on the combustion gas channel and supplies the exhaust gas as recirculated exhaust gas. The stoker-type incinerator further includes a secondary combustion air supply unit which supplies secondary combustion air on a downstream side of the recirculated exhaust gas nozzle on the combustion gas channel via a secondary combustion air nozzle provided on the combustion gas channel, in which the recirculated exhaust gas nozzle and the secondary combustion air nozzle are arranged in different positions in a plan view.

Disclosed is a system and method for the combustion of biomass material employing a swirling fluidized bed combustion (SFBC) chamber, and preferably a second stage combustion carried out in a cyclone separator. In the combustion chamber, primary air is introduced from a bottom air box that fluidizes the bed material and fuel, and staged secondary air is introduced in the tangential direction and at varied vertical positions in the combustion chamber so as to cause the materials in the combustion chamber (i.e., the mixture of air and particles) to swirl. The secondary air injection can have a significant effect on the air-fuel particle flow in the combustion chamber, and more particularly strengthens the swirling flow, promotes axial recirculation, increases particle mass fluxes in the combustion chamber, and retains more fuel particles in the combustion chamber. This process increases the residence time of the particle flow. The turbulent flow of the fuel particles and air is well mixed and mostly burned in the combustion chamber, with any unburned waste and particles being directed to the cyclone separator, where such unburned waste and particles are burned completely, and flying ash is divided and collected in a container connected to the cyclone separator, while dioxin production is significantly minimized if not altogether eliminated. A Stirling engine along with cooling system and engine control box is integrated with the SFBC chamber to produce electricity from the waste combustion process. Residual heat in the flue gas may be captured after the combustion chamber and directed to a fuel feeder to first dry the biomass. System exhaust is directed to a twisted tube-based shell and tube heat exchanger (STHE) and may produce hot water for space heating.

Provided is a plastic waste solid fuel incinerator comprising: an incinerator housing which has, on the upper portion thereof, a gas outlet through which combustion gas is discharged; a fuel supply unit which transfers and supplies a plastic waste solid fuel; a first combustion unit which continuously transfers and burns the supplied plastic waste solid fuel; a first air supply unit which supplies air needed for combustion to the first combustion unit; a combustion gas induction unit which induces the combustion gas generated from the first combustion unit toward the lower portion of a first combustion chamber; a second combustion unit which is arranged in the lower portion of the first combustion unit and comprises a downward injection nozzle unit which downwardly injects the combustion gas supplied through the combustion gas induction unit in order to reburn the combustion gas; and a second air supply unit which is arranged in the lower portion of the second combustion unit and supplies the air needed for combustion to the second combustion unit by downwardly injecting the air. Accordingly, there is an advantage of allowing continuous combustion using combustion gas generated during the combustion of the plastic waste solid fuel without using a separate auxiliary fuel, thereby reducing incineration costs.

A smokeless incinerator burns unburned gas to inhibit generation of black smoke. The incinerator contains a first combustion chamber with a main combustor having firebrick walls into which waste is thrown and an auxiliary burner for burning the waste. A water cooling jacket is located above the main combustor. A second combustion chamber is located on top of the first combustion chamber and has a re-burning burner for unburned gas. A filter-equipped combustion chamber is aligned with and adjacent the second combustion chamber and has a ceramic filter. A third combustion chamber is aligned with and adjacent to the filter-equipped combustion chamber and has a dust collection cyclone. A fourth combustion chamber is located on top of the third combustion chamber and has a re-burning burner for unburned gas. An exhaust stack is located on top of the fourth combustion chamber and has a forced exhaust.

The present invention relates to a method and a plant for treating carbon-containing waste that may comprise mineral fillers and/or potential contaminants.

This method comprises: preparing a molten glass bath at a temperature between 1100 C. and 1600 C.; loading the waste to be treated into said molten glass bath; injecting an oxidizer and optionally a fuel under pressure into said molten glass bath by means of at least one hose, one end of which is immersed in said bath, said oxidizer being introduced in a molar amount less than the molar amount of the carbon-containing compounds, thus causing combustion of said waste and generation of hot synthesis gases; implementing heat exchange between a heat-transfer fluid and the hot synthesis gases in conditions allowing simultaneous recovery of at least part of their heat energy and at least part of the heat energy released by their combustion, air being injected sequentially into said gases during said heat exchange to cause self-ignition of the mixture of said gases and air, each injection increasing the degree of combustion.

This invention provides a system and method for efficiently and completely combusting oil in mixture with particulate solids. A furnace (kiln) having a feed nozzle with a lead screw drives the mixture from a feed hopper. This nozzle includes forced-air jets/ports at its tip providing makeup air and allowing atomization of the mixture. The nozzle thereby directs the mixture into a rotating combustion chamber that is tilted downwardly from the front toward a solid waste outlet port at the rear. Uncombusted fuel and air backflow to an upper, secondary chamber near the primary chamber front, and are completely combusted at a high temperature. Gasses exit a flue that can include a heat exchanger. This heat exchanger can be operatively connected to a heating device or other mechanism that converts the heat into usable energy. The nozzle can include a cone with axially tilted air ports about its perimeter.

A waste-to-energy conversion apparatus comprising a primary combustion chamber capable of holding a load of waste, and the primary combustion chamber further comprises a heat source to heat the waste and generate a syn gas stream, grates, within the primary chamber, capable of supporting the load of waste during heating, a mixing chamber wherein the syn gas is mixed with additional combustion gas, a multi-chambered secondary combustion chamber for combusting the mixture of syn gas and additional combustion gas, and an energy extraction system for extracting the heat energy generated by the combustion of the mixture of syn gas and additional combustion gas.

The invention relates to a burner for gaseous, fluid or powdery fuels, into which three components are introduced: a fuel (40); an oxidizing gas (10), for example air; and an inert gas (20), for example gases produced by combustion, nitrogen or water vapor. Two components, for example, air and inert gas, are mixed together and propelled by at least one injection stage (95) arranged at different positions in relation to the movement of the fuel.