Abstract: A system for the combustion of high solids liquid to produce steam for the production of ethanol is disclosed. The system comprises a method for combusting high solids liquid. The method comprises supplying a stream of high solids liquid to a furnace; atomizing the stream of high solids liquid into the furnace; and distributing biomass fuel into the furnace. The stream of high solids liquid are combusted with the biomass fuel in the furnace.

Abstract: A waste disposal plant includes a combustion chamber (2) inside which waste laid on a combustion grate (3) is burnt. The grate permits the entrance of an adequate quantity of combustion air in the chamber through it. The combustion grate includes at least a handling group formed by fire bars or plates (7), which move alternatively one with respect to the other by advancing the waste on the grate. A handling group allows the alternate movement of the fire bars (7) which are divided in movable fire bars (7a) and fixed fire bars (7b), alternately disposed one with respect to the other, on transversal rows resting one upon the other according to a longitudinal placement with alternate steps.

Abstract: There is provided a wood pellet burner assembly for a wood pellet boiler, not shown. There is a fixed and easily removable fuel apertured grate mounted above and spaced apart from a base wall forming part of a main support enclosure. A movable scraper subassembly carrying an apertured flame tube is provided which can be moved in and out of the main support enclosure to perform a scraping action on the fixed fuel apertured grate to deliver ash and clinker which have not fallen through the grate during combustion off the grate out of the main support enclosure. This cleaning operation can be carried out at suitable preset time intervals.

Abstract: An incinerator including an incineration chamber; a chamber wall having a first insulating material for retaining heat in the incineration chamber, the insulating material being mounted on the lower portion of the chamber wall, and a second insulating material for allowing a portion of the heat to radiate from the incineration chamber, the second insulating material being mounted on the upper portion of the chamber wall, the chamber wall further defining at least one hot air inlet for allowing hot air to enter the incineration chamber and at least one incineration gases outlet for allowing hot gases to exit from the incineration chamber a dividing wall disposed around the chamber wall, thereby defining a gas space between the chamber wall and the dividing wall, and at least one gas outlet for allowing hot gas to pass from the gas space; an exterior wall disposed around the dividing wall, thereby defining an air space between the dividing wall and the exterior wall, the exterior wall further defining at least

Abstract: A conversion burner, a system of conversion burners, and a method of conversion of a solid fuel selected from at least one of biomass and peat. The burner is constructed and arranged to be affixed to a combustor, and comprises a housing defining a burner chamber; a grate within the burner chamber defining an upper chamber region and a lower chamber region; at least a first solid fuel inlet; at least a first air inlet operatively connected to the upper chamber region and connectable to a first air source; a product gas outlet operatively connected to the combustion region of the combustor; and at least one waste outlet. The product gas is delivered to the combustor for firing or co-firing, overcoming fouling problems which result from direct delivery of solid fuel to the combustor, and problems raised by remote conversion or storage of solid fuel.

Abstract: [Problem] To provide a waste gasification and melting furnace that promotes the drying and pyrolytic decomposition of waste in the shaft section, making it possible to limit the conveyance of moisture and volatile components to the bottom of the blast furnace and to reduce the consumption of extra coke.

Abstract: A system for reducing carbon content of hot ash includes a conveyor including a trough to receive a quantity of hot ash, the trough having a trough wall with a plurality of apertures through which air may pass, and a vibratory generator operatively coupled to the trough to move the quantity of hot ash along the trough. The system also includes a controlled air supply including an adjustable air supply, a temperature sensor operatively associated with the trough, and a controller operatively coupled to the adjustable air supply and the temperature sensor. The controller is programmed to adjust the air supply to maintain a constant temperature associated with controlled oxidation of unburned carbon in the hot ash within the trough in response to the signal received from the temperature sensor.

Abstract: A bonfire oven has a body placeable on the ground. The body has a combustion cabinet and an auxiliary equipment cabinet. A burner contained in the combustion cabinet has a fire grate, a side plate extending upward from the fire grate, a top plate opposite to the fire grate, a blowing space beneath the fire grate, and a hearth defined by the fire grate and the side plate. A fuel supply mechanism, an electrical equipment and an air blower is contained in the auxiliary equipment cabinet. The bonfire oven further has a flame portion on the top which is a flame roaring space formed by at least one piece of high temperature resistant glass.

Abstract: A high performance burner has a shell, a burning chamber contained in the shell, an ignition bar installed in the shell, and a fuel feeding means passing through the shell and being in communication with the burning chamber. The burning chamber has a first burning zone in communication with the exit of the feeding pipe, a second burning zone next to the first burning zone, and a third burning zone next to the second burning zone and in communication with the rear opening of the shell. The burner is able to effectively reduce fuel congestion, scorification and back fire and increase combustion efficiency.

Abstract: To suppress the generation of clinker so as to prevent the generation of a burning trouble, ceramic particles 30 are covered over a porous plate 4 to form a fire bed 3. Woody pellets 31 are scattered on the fire bed and combustion air is ejected from the lower side of the porous plate so as to burn the pellets. At the time of discharging ash generated by the burning to a secondary combustion space on the downstream side together with an air current of the combustion air or combustion gas, the ceramic particle layers and the woody pellet layer are stirred by a stirring section 21, 22 to thereby break clinker of the combustion ash formed in the fire bed, whereby the growth of the clinker is suppressed and the generation of a burning trouble is prevented.

Abstract: Biosolids in the nature of sewage sludge is processed in a controlled environment to produce a dried sludge product of relatively high dry solid content with the elimination of or reduced levels of pathogens. The water containing sewage sludge is dried while cascading within a processing chamber using heated air at a temperature below the ignition or smoldering temperature of the sewage sludge to prevent the formation of embers. The sewage sludge before discharge is retained within the processing chamber for a sufficient time and temperature as mandated by the Environment Protection Agency rules and guidelines.

Abstract: For implementing startup and priming phases of a vegetable carbon production method, an installation includes a generator of hot gases with low oxygen content, and a fan downstream which boosts the hot gases into a lower part of a reactor. The reactor includes a column of substantial height whose upper inlet, with a temperature T3 of less than 65° C., is used to continuously load and add biomass and whose lower part has a grid for support and removal of the load, an underlying injection chamber for the gases from the generator, and a mechanism for retrieving processed substances. The installation also includes, at the outlet for cold gases at temperature T3 at the top of the reactor column, a thermal post-combustion chamber for the extracted gases, a heat exchanger, a fan, a second heat exchanger, a vent and connecting pipes.

Abstract: The present invention relates to a regulated two stage thermal oxidation of waste and applications to use such a process for energy generation. A system and a method are provided comprising a set up of one or more gasification chambers, which are connected via ductwork to a combustion chamber to burn the waste material. The waste is loaded into the gasification chamber(s) and ignited there and the gas, which is generated by the sub-stoichiometric combustion in the gasification chamber is fully combusted in the secondary combustion chamber at a very high temperature. The time used for the burn down period is decreased and controlled by several air and gas flow factors of the system of the present invention.

Abstract: Method for reducing a formation of nitrogen oxide on a primary side of a furnace and reducing or avoiding nitrous oxide and ammonia slip in an offgas of the furnace in which a fuel is burned in a combustion process having at least two stages. The method includes passing a fuel consecutively through each of a plurality of bed areas of a combustion bed of the furnace. A primary gas including oxygen is fed individually to each of the bed areas so as to burn the fuel in the combustion chamber of the furnace. A secondary gas including oxygen is introduced into a downstream offgas burn-out zone, so as to after-burn incompletely burned offgas components formed during the burning of the fuel.

Abstract: The grate is used for burning a granular fuel material, for instance a biomass material, to be fed onto a loading area of the grate while a primary air feed is coming from below the grate. The grate includes a perforated bed floor having a downwardly-sloping upper surface converging towards a discharge opening where char is concentrated as the granular fuel material is burned during operation. The grate also includes an elongated and bottom-perforated char-receiving conduit positioned immediately under the bed floor. The char-receiving conduit has an inlet end positioned under the discharge opening, and an outlet end that is opposite the inlet end. The char-receiving conduit downwardly slopes between the inlet end and the outlet end. A method of burning a granular fuel material is also disclosed. The proposed concept can increase the overall thermal efficiency of a heat generator and reduce gas and particle emissions in the atmosphere.

Abstract: A reactor (6) for pyrolysing waste, in particular rubber tires, said reactor comprising a pyrolysis space (68), an inlet port (63) and an outlet port (64) enabling a flow across the pyrolysis space (68) of a heating medium for transferring heat required for the pyrolysis, and a lower discharge port (62) for discharging solid residues of the pyrolysis. The invention is, characterized in that—it comprises a baffle means (65) made of a plate material and enabling a gravitational slipping of the solid residues towards the discharge port (62), which baffle means (65) has openings (66) allowing the flow of the heating medium and is arranged to divide the inner space of the reactor (6) to form an upper pyrolysis space (68) and a lower space and—one of the inlet and outlet ports (63, 64) is in connection with the pyrolysis space (68) and the other one with the lower space. The invention is also an apparatus comprising the above reactor (6).

Abstract: A pellet furnace includes a pellet feed assembly, a conveyor assembly, a combustion blower assembly, a baffle assembly, and a control system. The pellet feed assembly includes a distribution tray having a plurality of distribution pins for spreading a mass of pellets over a desired area. The conveyor assembly includes an air distribution plenum and a plurality of grate plates for maintaining a deposited mass of pellets and receiving air from air distribution plenum to facilitate primary combustion of the mass of pellets.

Abstract: A method for supplying combustion air in a vertical incinerator according to one embodiment of the present invention is such that during incineration treatment by the vertical incinerator 1, a supplied amount of combustion air a is controlled in such a manner as to be 0.2 to 0.8 times as much as a theoretical air amount that is necessary to completely combust waste R in deposit layers, and the combustion air a is supplied in such a manner as to reduce oxygen in the combustion air a from a lower portion to an upper portion of the deposit layers.

Abstract: A method for improving a slag quality of slag in a grate firing system. The method includes providing slag in a grate firing system including a combustion chamber disposed above a combustion bed. The combustion bed has a plurality of fixed-bed burnout zones in series on a combustion grate. The fixed-bed burnout zones include a first series of fixed-bed burnout zones and a second fixed bed burn-out zone disposed downstream of the first series. The first series of fixed-bed burnout zones is traversed with a flow of oxygen-containing gas. A portion of the combustion bed associated with the second fixed bed burn-out zone is traversed with a flow of a hot combustion gas from the combustion chamber.

Abstract: A system for thermally recycling waste, for example whole used tyres (P) and fractionated waste; includes a first thermal pyrolysis column, having a first thermal base from which combustible gases are produced; a nozzle for introducing these combustible gases into a second instantaneous combustion and rapid reduction column and igniting them by injection of oxygen, this second reducing column having a second thermal base provided for carrying out purification of the burnt gases and molecular cracking; and a chute for introducing waste into this second column.

Abstract: Aspects of the invention are directed to an incinerator and ash removal system. The incinerator includes a grating system, which has pair of grating panels arranged in a V-shaped configuration. The panels can be independently pivotable from each other. Pivoting the panels during incineration can aerate the garbage being burned and can provide a stoking effect. Each panel includes a support rack on which a plurality of bricks is removably connected. The bricks can be configured with a plurality of channels that can deliver pre-heated air to the combustion chamber. The v-shaped grating can be directly above an ash removal system, which includes a first auger and a second auger. Generally, the first auger can break up the products from combustion, and the second auger can transport these products out of the combustion chamber.

Abstract: Process for solid waste treatment, and particularly municipal solid waste, with recovery of the thermal energy, which is based on the general pyrolysis process modified in order to improve, on the one hand, the energy yield and, on the other, to reduce the quantity of unusable solid residues to be sent to the waste disposal, the unusable solid waste being limited to 10-15% of the total weight of the initial residue. The process and relative plant include a boosted treatment of the incoming waste, with a preliminary separation into three solid fractions, the first one of which is separately subjected to a preliminary drying step and the third one undergoes further shredding. The process and relative plant also include a section for recovering energy from the pyrolysis coke, wherein the latter is subjected to a thermochemical treatment with the production of a further quantity of synthesis gas.

Abstract: An apparatus for the combustion of organic waste such as poultry litter/manure, cow manure and swine manure, and/or human waste, and/or biomass using a moving grate over a stationary perforated plate to convert organic waste into usable energy. The unprocessed fuel is fed into the combustion chamber through a feed hopper by a moving grate being continuously pulled over a stationary perforated plate. The raw fuel is metered using a guillotine gate apparatus to control the depth of the fuel bed on the moving grate. Temperature controlled combustion air is directed under the stationary perforated plate (under fire air) into discreet controllable under fire air zones to initiate and drive the combustion process. The stationary plate is sectioned to match the discreet under fire air zones with holes and/or slots (perforations) shaped and sized for proper under fire air distribution and pressure drop through the plate.

Abstract: Apparatus and method for generating fuel gas and optionally, activated carbon gasification from biomass fuel.

Abstract: A decomposition processing apparatus for PCBs prolongs the staying time of the PCBs in a vertical furnace. The apparatus heats and decomposes the PCBs and includes porous staying plates through which the falling PCBs pass, to delay the progress of the PCBs through the apparatus and thus subject the PCBs to sufficient thermolysis.

Abstract: A method and portable apparatus is described for the conversion of cellulose and other blomass waste materials through a pyrolysis and partial combustion sequence in a downdraft gasifier to produce a gas which can be immediately utilized to fuel an internal combustion engine in a generator set (genset). More specifically, the heat from the combustion of part of the cellulosic or other waste input is used to pyrolyze the remainder of the input to produce a mixture of permanent fuel gases. Particulates are removed (water scrubbers, filters) from the gas mixture which can then be used directly as a major part of the fuel to operate the internal combustion engine in the genset. All movement into, through, and out of the gasifier and purification train is controlled by the vacuum associated with the intake of the internal combustion engine, thereby ensuring a steady production of electricity.

Abstract: An apparatus and method of creating a high combustion rate in a combustor used to burn combustible matter. The combustor comprising a cylindrical combustion chamber extending vertically with at least one side loading bin for loading combustible matter into the combustion chamber while combustion is ongoing. The combustor creates a high combustion rate by inducing an acoustic excitation and an ascending vortex in hot gases that is reflected by a conical surface, converting the ascending vortex to a descending vortex. The shear between the ascending and descending vortices increases mixing. The descending vortex acts to separate the small, fully-combusted particles from larger particles that are thrown by centrifugal force back into the combustion zone.

Abstract: An animal carcass incinerator designed to subject the entire external surface of the biomass material simultaneously to flame. The flame front burns inward toward the core of the material, greatly accelerating the burning process. Complete flame coverage of the biomass material is achieved by carefully shaping the internal surfaces of the incinerator. Burning gases are injected into a lower flame chamber. This lower flame chamber is bounded on its upper side by a grate, and on its remaining sides by the walls of the incinerator. Above the grate is a biomass chamber, where the animal carcasses or similar waste are deposited for incineration. The incinerator walls are lined with refractory insulating materials which incorporate a series of vertical flame channels. Likewise, the grate incorporates a series of vertical open channels. These channels are separated by raised ribs, which prevent the biomass materials from closing off the channels.

Abstract: A method of combustion and a combustion plant in which absorbent is regenerated is described herein. During the combustion of a fuel in a combustion chamber enclosing a fluidized bed, a fuel and an absorbent are supplied to the fluidized bed. The combustion gases generated during the combustion are collected and purified in a separating member by separation of solid material from the combustion gases. The separated solid material is recirculated to the fluidized bed through a channel, and a gaseous medium is supplied in a controlled manner to the separated solid material present in the channel in order to displace the combustion gases and provide a chemical reaction.

Abstract: An apparatus and a method for fractionating alternative solid fuels, specially whole tires, into volatiles and coal, to be used as alternative fuels, and metal, the apparatus comprising: a feeding zone wherein the solid fuels are feed to the apparatus, a gasifying zone into which the solid fuels are processed, obtaining a gaseous fraction, coal and metal; cooled grills controlling the bed permeability and permanence time of the solid fuels at the gasifying zone; and a discharging zone into which the resultant coal and metal are discharged.

Abstract: The present invention provides an incinerator for removing toxic substances contained in a flue gas. That is, there is here disclosed an incinerator for removing toxic substances in which a removal section for removing the toxic substances generated from a burning section is connected to the burning section for burning incineration substances, and an air flow of from the burning section to the removal section is prepared by a suction type negative pressure means or by an air duct type negative pressure means, so that a negative pressure condition is always maintained in the burning section.

Abstract: This invention is a mass incinerator for burning various rubbishes (life rubbishes, industry wastes, hospital rubbishes and like) and flammable wastes (hospital wastes, poison material and like) under high temperature atmosphere. In particularly; to an incinerator in which the combustion chambers 101 constructed in a dome form and the auxiliar combustion chambers 102 are connected alternately to form a tunnel shape. An air supply chamber 104 is formed between the outside wall and the inside wall of the combustion chamber 101. The materials being burned are inputted through the double hinged gate so that the soot or the dust is not scattered outward. The input during the combustion process is possible to improve the treating whereby rubbishes or wastes are completely burnt to prevent the environmental pollutant such as heavy metal material or dioxin as well as soot from discharging.

Abstract: A process for incinerating waste material to produce slag without the addition of fuel other than the waste material begins with carbonizing the waste material in a low temperature process in a generator to produce carbonized solid material with a high energy content and flammable gases which are extracted from the waste material. The carbonization and temperature in the generator are controlled by limiting the supply of air to the material in the generator, the temperature being less than 1000° C. The carbonized waste material and the carbonization gases are delivered together to a furnace which is supplied with excess air. The carbonized material and carbonization gases are incinerated at a high temperature, typically 1400° C., in the furnace, thereby substantially completely incinerating burnable products in the furnace and melting materials which will not burn. The result is a glassy slag which binds therein materials such as heavy metals which could otherwise be pollutants.

Abstract: A waste tire incinerating and post-treatment system in which waste tires are continuously and efficiently burned. The system includes a waste tire reservoir tank, a hoist, a conveyor system, a tire-size sensing system, an incinerating part, a waste oil purifying part, a waste gas purifying part, and an incineration residual material treating part. Waste tires are accumulated in a waste tire reservoir tank before their incineration. A hoist transfers the waste tires from the waste tank reservoir to a conveyor system. The conveyor system conveys waste tires to an incinerating part. A sensing system senses the size of individual tires on the conveyor system to create tire size data. This size data is used to control and optimize the rate of feeding the waste tires into the incinerating furnace. The incinerating part further includes a material removal mechanism for removing incineration residual materials.

Abstract: A tower garbage incinerator is provided, consisting of an upper main blast furnace having a zigzag furnace cavity, and a lower accessory burning furnace. When garbage is fed through the inlet of the main blast furnace, the zigzag design of the furnace cavity combined with the hot upwardly flowing gas in the blast furnace, causes the garbage to drop slowly and to burn as it drops, as well. The hot gas tumbles the garbage thoroughly, so that caked garbage is completely dispersed, and thereby increases the burning area of the garbage, so as to greatly improve the burning efficiency thereof. Any residual incompletely burned garbage that drops into the accessory burning furnace is burned therein. The accessory burning furnace increases the temperature of gases entering the blast furnace.

Abstract: In a method of incinerating waste material in a parallel flow process wherein hot exhaust gases are conducted above a combustion chamber grate in the same direction as the material is moved on the grate, different temperatures zones are maintained to which air is admitted from the bottom through the grate such that a temperature of less than 900.degree. C. is maintained in a first zone which is a drying zone, a temperature of about 1000.degree. C. is maintained in a second zone which is an evaporization and vaporizing zone, a temperature of about 900.degree. C. is maintained to in a third zone, which is the final combustion zone and a temperature less than 900.degree. C. is maintained in a fourth zone which is a sintering zone. Additional air is supplied to the combustion zones 1 through the side walls of the combustion chamber.

Abstract: A garbage incinerator with tunnel furnace combustion includes a tunnel furnace serving as the burner unit, a number of carriers serving as the burner beds, and a specified track course to deliver the garbage-loaded carriers into the tunnel furnace to incinerate the garbage. A hopper is provided to receive the garbage and spread it evenly onto the carrier. Each carrier is driven into the tunnel furnace to burn the garbage and includes a bottom loading plate onto which the consumed embers fall. An automatic ember removing equipment is provided for to remove the embers from the carrier. The carriers travel on a circular track so that they continuously move in and out of the furnace.

Abstract: A roller grate arrangement for garbage-incinerating plants, in which a plurality of rollers with horizontal and parallel axes lie in an inclined plane. Primary air is fed to interiors of the rollers by air boxes located below the grate. The rollers have surfaces with air gaps for supplying the primary air, and the rollers are positioned to form a space between adjacent rollers. A component in the space between adjacent rollers, bridges the space between adjacent rollers. The component is free of air passages. Blast pipes are positioned in spaces between adjacent rollers and are connected to a separate system for feeding supplemental air.

Abstract: A roller grate arrangement for garbage-incinerating plants, in which a plurality of rollers with horizontal and parallel axes lie in an inclined plane. Primary air is fed to interiors of the rollers by air boxes located below the grate. The rollers have surfaces with air gaps for supplying the primary air, and the rollers are positioned to form a space between adjacent rollers. A component in the space between adjacent rollers bridges the space between adjacent rollers. The component is free of air passages. Blast pipes are positioned in spaces between adjacent rollers and are connected to a separate system for feeding supplemental air.

Abstract: The invention concerns a process and apparatus for gasifying carbon-containing products, in particular waste and residues conditioned or processed in a suitable way. Gasification takes place in a mixed flow composed of a counter flow, direct flow and transverse flow. A portion of the gasifying agent is introduced through an inclined grate in the form of a step grate and thrust grating and ash is removed at the bottom end of the grate. Fuel gas is drawn off above the upper level of the grate on the side opposite the lateral feed of the gasifying agent. The gasification apparatus is enclosed in a double-layer insulating/cooling system in which air is used as the insulator and coolant. The gasification process is regulated by the temperature profile of the gasification apparatus, the position of the principal gasification zone is adjusted by ash discharge, the gasification temperature is regulated by the flow of gasifying agent and the output is regulated by the width of the gasification zone.

Abstract: A variety of essentially circulr-planform fire grates having ash discharge openings therein and intimate-contact preventing means thereon is presented. The intimate contact preventing means for the fire grate having upper surface contour of fluctuation-free profile in the circumferential direction of the fire grate comprises first fluctuation-free-bottom spider-web-planform fins having fin upper surface of fluctuation-free profile and second fluctuation-free-bottom spider-web-planform fins having fin upper surface of fluctuational profile. The intimate contact preventing means for the fire grate having upper surface contour of fluctuational profile in the circumferential direction of the fire grate comprises first fluctuational-bottom spider-web-planform fins having fin upper surface of fluctuation-free profile and second fluctuational-bottom spider-web-planform fins having fin upper surface of fluctuational profile.

Abstract: A waste incinerator including separate burning-, blower-, chimney- and ash-receiving chambers. A suction-discharge port is provided in a wall between the burning chamber and the chimney chamber for discharging gases from the burning chamber through a chimney to the atmosphere. The chimney extends from the chimney chamber for discharging gases to the atmosphere. The chimney receives an air feed pipe from the blower and an ignition sleeve extends into the chimney for burning unconsumed waste gas. A vibrator vibrates an ash receiver in the ash receiving chamber, and a drying chamber may be provided for drying high moisture garbage by combustion gases from the burning chamber.

Abstract: Combustible is comminuted and dried, and metal and noncombustible are removed from the coarsely comminuted combustible. Then, the combustible is secondarily comminuted and separated into coarse combustible and fluff which is fine combustible. The coarse combustible of the separated combustible is fed onto a fire grate (2) of a refuse incinerator (1), and burned in flat bed combustion in a primary combustion chamber (4). On the other hand, the fluff is burned in suspended combustion in a secondary combustion chamber (7) with a combustion fluff burner (5) for incinerating combustible. Thus, refuse containing much plastics which is formed into fluff can be efficiently disposed of, whereby the amount of incineration is increased as a whole.

Abstract: A hearth particle bed system is made up of channel members which form an inclined surface upon which a layer of hearth particles downwardly flow. An air inlet is provided underneath the channel member and apertures are provided in the channel members for redistributing the air flow through the hearth particles. A hearth particle incinerating furnace contains the above-described hearth particle bed system and further contains a combustion chamber and a mechanism for removing used hearth particles and combustion residues. This hearth particle incinerating furnace enables combustion air to be uniformly distributed in the hearth particle bed and can operate in a stable fashion for a long period of time without problems associated with pluggage of the air inlets.

Abstract: The specification describes a system for the thermal treatment of energetic materials which generate a tremendous volume of gaseous products upon combustion. The system includes a containment system which maintains an interface between hot exhaust gas products and a cooler gas, yet allows the relatively slow removal and treatment of the exhaust gas products from the containment system while permitting the inflow of gas into the containment system to replace an equivalent volume of exhaust gas products removed therefrom.

Abstract: A hearth particle bed incineration furnace is provided in which the hearth particles form a sloped layer bed which moves in the incinerating furnace without being fluidized. The furnace is structured so that the combustion gas is prevented from flowing upward through the inlet for the materials to be incinerated. The structure for preventing the backflow of the combustion gas includes a sidewall which is connected to the incinerated materials inlet, baffles and a member which restrains the upward backflow of combustion exhaust gas. This restraining member is made up of an air intake opening and the air introduced therein is heated through heat exchange with a combustion gas and introduced into the combustion chamber. This allows the amount of air to be introduced in the combustion chamber to be increased and the backflow of combustion exhaust gas to be reduced or eliminated.

Abstract: A method for burning fuels, particularly garbage, in incinerators with a stoker grate, for which the primary air is supplied below the stoker grate into the fuel layer and the secondary air is supplied above the fuel layer, is controlled in such a way that the intensity of the combustion of the fuel on the stoker grate is increased by increasing the oxygen content of the primary air and the intensity of the combustion in the secondary combustion zone is choked by decreasing the oxygen content in the secondary air. Flue gas, preferably from the combustion process, is recirculated in order to reduce the oxygen content of the secondary air.

Abstract: There are provided a pretreatment facility (1) and a incineration/melting facility (2). In the incineration/melting facility, an incineration chamber (3) and a melting chamber (5) are integrally formed through a partition wall (7) so that incineration residue can be continuously transferred. Fine crushed material finely crushed by the pretreatment facility (1) is supplied as fuel to a burner (4). This enables it to obtain melting heat source from waste, and to efficiently treat the waste at a low cost by directly superheating and melting non-cooled incineration residue from the incineration chamber (3).

Abstract: A low-pollutant system for waste materials treatment includes a process chamber for converting organic components of the waste materials into a flammable gas and a two-stage vortex burning chamber for complete combustion of the flammable gas. The vortex burning chamber includes a first substantially-horizontal combustion chamber and a second substantially-vertical combustion chamber disposed at a right angle to each other and communicating therebetween. The first combustion chamber has an inlet portion for receiving the flammable combustion gas from the gas generator means for injecting primary air into the first combustion chamber, thereby forming a mixture of air and the flammable gas and thereby igniting the mixture for partial oxidation thereof.

Abstract: An animal carcass incinerator designed to subject the entire external surface of the biomass material simultaneously to flame. The flame front burns inward toward the core of the material, greatly accelerating the burning process. Complete flame coverage of the biomass material is achieved by carefully shaping the internal surfaces of the incinerator. Burning gases are injected into a lower flame chamber. This lower flame chamber is bounded on its upper side by a grate, and on its remaining sides by the walls of the incinerator. Above the grate is a biomass chamber, where the animal carcasses or similar waste are deposited for incineration. The incinerator walls are lined with refractory insulating materials which incorporate a series of vertical flame channels. Likewise, the grate incorporates a series of vertical open channels. These channels are separated by raised ribs, which prevent the biomass materials from closing off the channels.