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 inclined hearth combustor which generally includes a primary combustion chamber having a plurality of stepped hearths, a secondary combustion chamber in communication with the primary combustion chamber and a boiler having an inlet in communication with the secondary combustion chamber. The secondary combustion chamber includes a refractory-lined cyclone separator for removing fly ash from combustion gases exiting the primary combustion chamber and the boiler inlet is surrounded by the cyclone separator. The primary combustion chamber may further include an ash transfer ram movably disposed between two stepped hearths, wherein the ash transfer ram includes a top layer of refractory material extending rearwardly from a leading edge thereof. The ash transfer ram may further include a plurality of V-shaped wheels attached to a bottom surface thereof, a replaceable wear plate disposed on a side surface thereof and/or a wiper blade fixed on a forward face thereof.

Abstract: Radioactive waste treatment method, includes: (a) loading waste into plasma shaft furnace by conveying waste by hermetic conveyor from automated storage into plasma shaft furnace, wherein conveying is loading is controlled; (b) pyrolizing waste; (c) oxidizing coke; (d) withdrawing pyrogas and slug from furnace; (e) afterburning pyrogas in combustion chamber at an afterburning temperature of 1200-1350° C.; (f) supplying air into combustion chamber at two levels during afterburning step: (1) prechamber pyrogas air supply level, and (2) an upper part of combustion chamber air supply level; and (g) quenching an off-gas to 200-250° C. with subsequent mechanical cleaning and absorption cleaning and further cooling. A radioactive waste treatment plant is also disclosed.

Abstract: The present invention relates to a food waste treatment apparatus that can effectively dispose food waste containing a large amount of water, rapidly dry food waste using microwaves, and remove odors and vapors generating during the drying process, thereby discharging clean air. The food waste treatment apparatus comprises a pulverizer (10) for pulverizing food waste, an endless track (20) for transferring food waste, a plurality of containers (30) installed on the upper surface of the endless track (20) for storing pulverized food waste, and a microwave dryer installed above the endless track for drying the pulverized food waste by making microwaves pass through the endless track in a direction perpendicular to the moving direction of the endless track (20).

Abstract: There is provided an apparatus for manufacturing solid fuel using combustible waste, to manufacture RPF or RDF by melting general waste and combustible waste as well as the waste plastics, such as waste tires, waste vinyl and PET bottles, by using heat generated in a combustion apparatus.

Abstract: An apparatus for conveying solid waste to a furnace includes an opening to an elongated channel into which waste material is received and an outlet open to the furnace. A reciprocating ram with a head plate located in the channel opposite the outlet forces the waste toward the outlet. The ram also has an upper shield dimensioned to be slightly greater in area than the opening such that the opening is blocked when the ram is extended. The channel also includes an actuator-impelled restrictor plate for compressing waste as it is forced through said channel into a narrower portion, and a isolation door operable to close off the channel.

Abstract: An apparatus and method for the treatment of particulate organic waste material, the apparatus comprising: a hopper means having flow control means for controlling flow rate of the waste material; a pyrolysis unit having (i) a heating means for heating the material, and (ii) a means in the form of a cascade of vanes for controlling rate of flow therethrough; means for removing gaseous products generated in the pyrolysis unit, the gaseous products being recycled; and residual treated waste material collection means.

Abstract: In one aspect, a grate segment for a burner, comprises a substantially rigid body (30) having a dispersed array of cavities (38) filled with a refractory material. In another aspect, a solid fuel gasifier includes a housing (12) defining a gasifier chamber (14), and a solid fuel inlet (21), grate structure (22, 24) in the gasifier chamber. The grate structure includes base means, a plurality of agitator segments (32) positioned relative to the base means for reciprocating movement to agitate a fuel load in the gasifier, and means to support the base means and the agitator segments so that the latter reciprocate in a direction at a substantial inclination to both horizontal and vertical. In use of the gasifier a deep burden of fuel accumulates on the grate structure and the outward stroke of the reciprocation of the agitator elements is in the overall direction of flow of the fuel burden or generally oppositely thereto.

Abstract: A system for the pyrolization of waste has a combustion chamber with a fuel inlet and a hot gas outlet, a pyrolization chamber separated from the combustion chamber, and a conveyor means positioned within the pyrolization chamber for moving waste from the waste inlet through the pyrolization chamber. The pyrolization chamber is connected to the hot gas outlet of the combustion chamber. The pyrolization chamber has a waste inlet and pyrolized waste outlet. A plurality of radiant tubes are positioned within the pyrolization chamber adjacent to the conveyor so as to heat the waste on the conveyor.

Abstract: The invention relates to an industrial and/or household waste treatment method and to an industrial and/or household waste treatment installation (1). According to the invention, the method is characterised in that it consists of, in particular, the loading of the waste into numerous pierced containers (20), thermolysis of the waste in the containers (20) being conveyed into a pyrolysis oven (12); emptying of the containers (20) into a separation tank (18) in order to separate the products formed by the thermolysis; and treatment of the separated products.

Abstract: A corn-burning stove provides cooling for the corn in-feed auger and other adjacent components by combustion inlet air flow patterns. The inlet air flow transports pellet fuel through a distance within the fire pot which varies responsive to the flow rate of the inlet air flow. A fire pot and agitator ensure, in combination with the inlet air flow, complete burning of the corn, with almost no ash production and while avoiding the formation of clinkers. The agitator is toothed, having teeth closely adjacent the burn pot for moving burning corn kernels or solid pellets across the fire pot. Retractable ignitors have handles and furnace function interlocks. A process control is associated with the corn burner that includes some logic, including interlock, power control, speed controls, sensing inputs/devices, and user interface.

Abstract: In a vertical refuse incinerator for incinerating wastes according to the present invention, an incinerator body 1 is made up of an upper cylindrical part CP and a lower funnel part FP covered by a cooling case, and an exhaust gas mixing device 4 promoting the mixing and secondary combustion of combustion gas stream CG is provided between a flame zone FZ and a re-combustion chamber 45. On the other hand, completely incinerated bottom ash is discharged below the incinerator body 1 by the opening and closing operations of a bottom ash discharge device DD by cooled refuse supporting means RS and bottom ash discharge plates 35.

Abstract: A chamber having a discharge base discharges an oversize fraction of a material and a fine fraction of the material separately from the chamber. The discharge base for the chamber for the heat treatment of the material is capable of separating the fine fraction of the material from the oversize fraction of the material. The discharge base has a plurality of conveyor elements which are movable to and fro for the discharge of the oversize fraction of the material. The discharge base is also provided with separator openings for separating out the fine fraction of the material. The conveyor elements are of bar-shape construction and are disposed in parallel to one another on the discharge base to be moveable in the direction of their longitudinal extent, and the separator openings are formed by longitudinal gaps between the conveyor elements.

Abstract: This relates to a furnace that is useful in safely detonating or demilitarizing munitions or explosives, particularly small caliber munitions. The preferred variation includes a series of chambers having a set of runners or tracks passing amongst the various chambers to allow movement of the munitions from chamber to chamber in trays. The first chamber is heated in such a way so that a tray of munitions placed on the runners in this chamber are baked and detonated. After the detonation is generally complete, the tray containing the then-detonated munition fragments is slid through an opening at the end of that heated detonation chamber into a first cooling chamber. Generally, this movement takes place by addition of another tray containing non-detonated munitions into the first chamber.

Abstract: A system and method are set for pyrolysis of waste feed material including a first retort segment disposed through a combustion chamber and a second retort segment disposed outside of the combustion chamber. The combustion chamber supplies the heat for pyrolysis to the material conveyed through the first retort segment, which pyrolysis is completed as it is conveyed through the second retort segment. A thermal oxidizer oxidizes off gases and a stack unit provides a draft to move the gases from pyrolysis from the retort segments and through the thermal oxidizer.

Abstract: An apparatus for treating waste material that comprises four major cooperating subsystems, namely a pyrolytic converter, a two-stage thermal oxidizer, a steam generator and a steam turbine driven by steam generated by the steam generator. In operation, the pyrolytic converter is uniquely heated without any flame impinging on the reactor component and the waste material to be pyrolyzed is transported through the reaction chamber of the pyrolytic converter by a pair of longitudinally extending, side-by-side material transfer mechanisms. Each of the transfer mechanisms includes a first screw conveyor section made up of a plurality of helical flights for conveying the heavier waste and a second paddle conveyor section interconnected with the first section for conveying the partially pyrolyzed waste, the second section comprising a plurality of paddle flights. Once operating, the apparatus is substantially self-sustaining and requires a minimum use of outside energy sources for pyrolyzing the waste materials.

Abstract: A solid fuel fed combustor system having a first chamber portion with an inlet feed for feeding a metered amount of a solid fuel thereto, a first burner stage having a first traveling conveyor firebelt, a metered amount of air introduced in progressively increasing proportions along the length of the first traveling conveyor. A second burner stage having a second traveling conveyor firebelt with air introduced in a progressively decreasing amount along the length of said second traveling conveyor firebelt and a controller for controlling air introduced to the system. The chamber has a sloped common roof section common to the burner stages and is made of radiative energy reflective fire brick and angled to reflect radiative energy generated from fuel traveling on the traveling conveyor firebelts and directing the radiative energy on fuel traveling on the first firebelt.

Abstract: Method and apparatus to recover energy from waste by means of combustion of such waste in industrial furnaces, particularly of the rotary type, that has an external calciner, feeding such waste into the tertiary air duct of the calciner and burning the waste inside the duct itself, to efficiently make use of the energy produced by such combustion, as a contribution of the total cost of fuel necessary to operate the industrial furnace. The method and apparatus permit the elimination of hazardous wastes that are efficiently disassociated when burned sufficiently to produce effluents that are typically non-toxic, producing greatly reduced or even no atmospheric pollution nor environmental damage.

Abstract: A gasification and melting furnace for wastes has a vertically movable furnace center lance disposed along the axis of the furnace and adapted to blow off a combustion sustaining gas downward into the furnace. One or more stages of upper tuyeres are disposed so that the angle at which the combustion sustaining gas is blown off into the furnace is displaced from the furnace axis direction, and one or more stages of lower tuyeres projected into the furnace so as to blow off a combustion sustaining gas or both combustion sustaining gas and fuel toward the furnace axis. Formation of a low temperature region in the furnace are prevented and a fire spot is concentrated on the combustion of wastes. As a result, molten slag and various metals, as well as an energy gas, which are high in added value, can be recovered stably.

Abstract: A miniature garbage incinerator includes a base, a cover on the base, a pot shaped furnace at the center of the base to define an revolving space therearound, a helical pipe connected to the air revolving space and heat source in the bottom of the base for providing whirlpool flame around the furnace, a motor on the central top of the cover to actuate a stirring rod inside the incinerator, an inlet including a spiral propeller tube in a side wall of the cover for feeding the garbage and filthy mud into the furnace, a heat revolving pipe including a blower connected between a top of the cover and a lateral wall of the base, a chimney connected to a lateral wall opposite to the heat revolving pipe, a pressure adjustment valve on a top of the cover and an ashes collector under the chimney connected to the bottom of the furnace through an ashes spiral propeller tube. The miniature garbage incinerator can be used individually or combined with a filthy mud furnace and a heat stove.

Abstract: A compression device for feeding a waste material to a reactor includes a waste material feed assembly having a hopper, a supply tube and a compression tube. Each of the supply and compression tubes includes feed-inlet and feed-outlet ends. A feed-discharge valve assembly is located between the feed-outlet end of the compression tube and the reactor. A feed auger-screw extends axially in the supply tube between the feed-inlet and feed-outlet ends thereof. A compression auger-screw extends axially in the compression tube between the feed-inlet and feed-outlet ends thereof. The compression tube is sloped downwardly towards the reactor to drain fluid from the waste material to the reactor and is oriented at generally right angle to the supply tube such that the feed-outlet end of the supply tube is adjacent to the feed-inlet end of the compression tube.

Abstract: A waste treatment system for solidifying and increasing the speed at which manure would dry. The waste treatment system includes support members; and also includes an elongate tubular member being mounted upon the support members and having an inlet end and an outlet end and having a bore being disposed therethrough; and further includes a waste holding/compressing assembly being mounted to the elongate tubular member; and also includes an incineration/discharge assembly being disposed in and about the elongate tubular member for incinerating waste material.

Abstract: A waste plastic dechlorination system comprises a dechlorination furnace 1 for heating and thermally decomposing waste plastics, and a rotating cutter 4 provided in the dechlorination furnace 1. A pressure gauge 9, a flow meter 10 and an exhaust pump 12 are sequentially connected to the dechlorination furnace 1 via an exhaust pipe 7. The waste plastics heated and decomposed in the dechlorination furnace 1 are discharged into a discharge tank 15.

Abstract: A combustion furnace for solid fuel, including combustable fuel, wherein the furnace is arranged with a grate (11) with openings (12) which are situated for supply of air or another gas mixture for combustion. A first and second rod feeder (1, 2) is provided which includes parallel bars (3a, 3b; 4a, 4b) with intermediate carriers (5, 6). The rod feeders (1, 2) are arranged to be moved back and forth on the grate (11), independently of each other. The openings (12) are surrounded by spacers (13) carrying rails (14) in such a way that slots (15) are formed between the spacers (13) and the rails (14), so that the air has a direction out onto the grate (11) which is parallel with the rail (11).

Abstract: A waste water treating device can be simply installed in a small area and destroy combustible wastes and sludge to reduce fuel consumption cost of a burner. Moreover, the waste water treating device can increase a treating amount of the waste water per unit time to thereby reduce an activation time thereof and decrease installation and maintenance cost, to thereby obtain an economic advantage.

Abstract: A method of burning tires in a horizontally rotating combuster includes the steps of loading the tires into a rotating combustion chamber through a traveling air lock and burning them until they are reduced to ash; enhancing combustion by tumbling the burning tires in a tapered rotating chamber while adding preheated draft air; controlling the intake draft air using thermal expansion of the rotary combustion chamber to activate the draft control valve; advancing the residual ash with each successive revolution of the combustion chamber by use of angled flights on the inner surface of the chamber to an afterburner for completion of the combustion and disposal of the ash.

Abstract: A compression device for feeding a waste material to a reactor includes a waste material feed assembly having a hopper, a supply tube and a compression tube. Each of the supply and compression tubes includes feed-inlet and feed-outlet ends. A feed-discharge valve assembly is located between the feed-outlet end of the compression tube and the reactor. A feed auger-screw extends axially in the supply tube between the feed-inlet and feed-outlet ends thereof. A compression auger-screw extends axially in the compression tube between the feed-inlet and feed-outlet ends thereof. The compression tube is sloped downwardly towards the reactor to drain fluid from the waste material to the reactor and is oriented at generally right angle to the supply tube such that the feed-outlet end of the supply tube is adjacent to the feed-inlet end of the compression tube.

Abstract: A method for automatized combustion of solid fuel in a combustion apparatus which comprises a burner with a device, which is rotatable about the center axis of the burner for stirring the fuel in the burner which is connected to a boiler and has a feeding-in opening for fuel in the rear end of the burner outside of the boiler and an outlet opening for completely or partly combusted flue gases in the front end of the burner which opens in a combustion chamber inside the boiler which comprises a convection unit, from which a hot water conduit extends, the combustion apparatus also including a fan provided to be driven by a second motor for blowing combustion air into the burner, and a fuel charge feeder for fuel provided to be driven by a third motor.

Abstract: A refuse incineration plant is disclosed which utilizes a continuous rail system to transport refuse from a loading area into a burn core, from the burn core to an ash removal area, and back to the refuse loading area. Smoke and exhaust generated by the incineration process is sensed to control the incineration burn cycle, thereby allowing a variable burn cycle depending upon the composition of the refuse incinerated therein. Once sensed, the smoke and exhaust from the incineration process is exhausted into a filtration system having a main mixing tank and a number of filter condenser tanks coupled in series ascending/descending gaseous communication. The main mixing tank utilizes a series of baffle plates which aids in the mixing of the smoke/exhaust with water vapor as delivered within the main mixing tank by a series of water vapor spray jets. A cooling unit is also utilized to cool the mixture and aid in the condensation thereof.

Abstract: A feed chute apparatus for injecting fuel into a rotating cement kiln by gravity. The apparatus, which is positioned adjacent to a cement kiln and supported at an angle of inclination sufficient to allow tires or other combustible materials to be gravity fed into the cement kiln, has a feed ramp for guiding the combustible material into the kiln. A gate having a pair of opposing posts is positioned at the end of the feed ramp to control the rate of feed of the combustible material. In the rest position, the posts are extended in relation to the feed ramp to prevent the flow of combustible material. When the kiln rotates to a position where the feed opening in the wall of the kiln is aligned with the feed ramp, the gate retracts to allow the combustible material to be gravity fed into the kiln.

Abstract: A refuse incinerating oven includes a refuse loading car, and a furnace body with lower and upper combustion chambers. The car is conveyed through the furnace body such that refuse loaded on the car can be ignited in the lower combustion chamber. The combustion exhaust generated in the lower combustion chamber flows into and is heated in the upper combustion chamber. A spraying tank is communicated with the upper combustion chamber for receiving the combustion exhaust. Water mist is sprayed to the combustion exhaust in the spraying tank so as to generate aerated water. The aerated water and the combustion exhaust flowing from the spraying tank are cooled as they flow into a reservoir. The aerated water is pumped from the reservoir to an upper end of a waterfall tank so as to generate a downwardly cascading water stream inside the waterfall tank. An exhaust port unit is connected to the upper end of the waterfall tank for sucking and releasing the combustion exhaust.

Abstract: The invention relates to a device, and a process for its charging, for carrying out high-temperature recycling for heterogeneously occurring waste in compact packages. The compact packages are introduced into a heated channel for evaporation of liquids and slightly fluid materials as well as to partly decompose them. The invention is characterized by a temperature insulating mouthpiece interconnecting the reactor and the channel for limiting the conduction of heat from the reactor to the channel. Accordingly, packages may be serially forced through the channel and into the reactor while maintaining the packages in sealing engagement with the channel to prevent reduction in the predetermined cross section in response to high temperatures transmitted from the reactor.

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 waste disposal system for gasification and melting of various waste materials such as solid waste, waste in a solid container, granular waste, and liquid waste, and mixtures thereof. The system includes a reactor vessel which is closed to the atmosphere, and also includes a bottom portion capable of serving as a slag pool. An active feed mechanism eliminates the entry of air from the atmosphere into the vessel and also blocks the expulsion of by product gases into the atmosphere. The feed mechanism includes mechanisms to feed solid waste, waste in a solid container, granular waste and liquid waste into the reactor vessel. A plasma arc torch is located for plasma arc activity within said reactor vessel to produce a high temperature processing zone to gasify or melt solid waste, waste in a solid container, granular waste, and liquid waste and mixtures thereof as such waste is actively fed into the reactor vessel.

Abstract: According to the present invention, boiler water is pressurized so that its boiling point is set at approximately 200.degree. C. to 320.degree. C. The boiler water is heated in at least two stages. Thermal energy of gases containing chlorine compounds is used to heat the water to its boiling point. Thermal energy of gases which do not contain chlorine compounds is used to heat the water from its boiling point until superheated steam of a given temperature is generated. The heating which uses the thermal energy of gases containing chlorine compounds is accomplished using the thermal energy from the combustion of pyrolysis gases obtained from a pyrolysis means in which waste material is supplied into a chamber containing a fluidized bed medium which has been heated to at least 300.degree. C., and a pyrolytic reaction is induced.

Abstract: A down-draft gasification reactor has a solids storage chamber bordered from below by a grate and having an oxidation zone, a product gas collection region disposed beneath the grate, a product gas line for discharging out-gassed product gas from the product gas collection region, a slag-separation device disposed above the grate, and a discharge mechanism downstream of the grate for transporting the separated slag out of the reactor.

Abstract: A material processing apparatus includes a casing having a top and bottom and a plurality of sides defining a pyrolysis chamber for receiving and pyrolyzing feed materials therein into fluid materials and a mass of refractory material disposed upon the bottom of the casing and spaced below the top thereof and extending between its sides. The refractory mass includes an upper surface defining a bottom of the pyrolysis chamber and having an end spaced from a first one of the casing sides to define an ash residue collection cavity therebetween. The apparatus also includes a system of tunnels defined within the refractory mass being spaced below the upper surface thereof.

Abstract: A material processing apparatus includes a casing having a top and bottom and a plurality of sides defining a pyrolysis chamber for receiving and pyrolyzing feed materials therein into fluid materials and a mass of refractory material disposed upon the bottom of the casing and spaced below the top thereof and extending between its sides. The refractory mass includes an upper surface defining a bottom of the pyrolysis chamber and having an end spaced from a first one of the casing sides to define an ash residue collection cavity therebetween. The apparatus also includes a system of tunnels defined within the refractory mass being spaced below the upper surface thereof.

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: 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 fluidized bed reactor includes an axial recirculating fluidized bed and at least first and second lateral dense fluidized beds, respectively disposed along a first and a second wall of the jacket of the reactor. Waste is fed via at least one point on the first wall of the jacket of the reactor, above the first lateral dense fluidized bed. The reactor includes at least one duct for extracting non-fluidizable heavy elements at the base of the first lateral dense fluidized bed.

Abstract: A burner apparatus uses fuel derived from waste resin. The burner includes a cylindrical body in combination with an oxygen supplier, which form an oxygen deficient atmosphere. While rotating the cylindrical body, a small portion of waste resin is partially combusted to generate heat energy and changes its form to finely divided particles. The heat energy is used for heating and gasifying a remaining larger portion of the waste resin. The produced gas particles are conveyed toward an outlet nozzle of the cylindrical body and are injected outwardly for complete combustion in air.

Abstract: A waste treatment furnace includes a first waste treatment chamber with a first burner chamber communicating therewith, and a second waste treatment chamber with a second burner chamber communicating therewith. A common bottom wall is positioned under the first and second waste treatment chambers which is inclined downwardly from the first chamber to the second chamber to facilitate transfer of waste. Each burner chamber includes a burner and a plurality of protuberances disposed across its inner surface. The protuberances effectively reflect heat from the first and second burners so that the heater air in the first and second burner chambers is homogenized.

Abstract: The present invention refers to a process for disposing of materials which are explosive active masses and/or contain them comprising the following steps:feeding the materials to be disposed off in a rotary cylindrical furnace (1), conveying the materials into a reaction zone and simultaneously forming compartments of the materials during conveyance, with the materials being thermally reacted in an oxygen-containing environment and the reaction products being fractionately discharged in the form of solid, liquid and gaseous products.

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: A feeding apparatus for feeding whole tires into a cement kiln comprising a feed opening in the shell of the kiln, a passageway including a sleeve extending within and outside the kiln, an arcuate sector valve device for closing the passageway and timed to open so as to allow the tires to fall into the kiln through the passageway. The sector valve having an outer perforated wall and an inner wall, the perforated wall allowing ambient air to circulate between the outer and inner wall to keep the outer wall cool for contact with the tires. A transfer device is provided for transferring the tires onto the feeding apparatus wherein the transfer device includes fingers while the feeding apparatus includes a fork receiving tray interdigitated with the fingers to pick up the tires as the kiln rotates.

Abstract: An automatic carbon black discharging device for a waste tire decomposing apparatus including a collecting hopper connected to a carbon black discharging portion of the waste tire decomposing apparatus. The automatic carbon black discharging device also includes a plurality of sensors respectively disposed at vertically equidistantly divided positions of the collecting hopper and adapted to sense maximum, normal and minimum levels of carbon black collected in the collecting hopper, thereby stopping or driving a drive motor for driving a feeding screw included in the waste tire decomposing apparatus. The carbon black is left in the collecting hopper in a minimum amount provide a sealing effect which prevents external air from entering into the device. When the amount of carbon black collected in the collecting hopper corresponds to the maximum level of the collecting hopper, the driving motor is controlled to increase its rotating speed, thereby increasing the discharge rate of carbon black.

Abstract: A method and apparatus for incinerating waste material and in particular, for incinerating particulate material resulting from the shredding of vehicles. The particulate material is fed to one end of a rotary drum, and is subjected in the drum to pyrolitic incineration in the absence of air, to generate combustible gases and a solid residue. The combustion gases and the residue are discharged from the drum to a discharge hood, where the solid residue is separated from the gases. The gases are then passed through a condenser to cool the gases to a temperature below 212.degree. F. to thereby condense water vapor and higher boiling point hydrocarbon gases to produce hydrocarbon liquid.

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.