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: A boiler grate including air channels for supplying primary air to a furnace of a boiler. At least one channel, which is open on top, is arranged to collect ash and material from the furnace. At least one removal element is arranged in the channel and to mechanically move ash and material along the channel. A boiler includes a grate, a furnace which is limited by the walls of the furnace and the grate, and an ash chute, which is arranged to remove ash and material from the furnace. The ash removal elements is arranged to move ash and material towards the air chute.

Abstract: A slag remover for discharging combustion residues of an incineration plant comprises a trough, which has a trough housing having two side walls, which define the trough width, and having a trough bottom, and which is intended to collect the combustion residues evacuated from a combustion chamber of the incineration plant. The trough further comprises at least two push rams for pushing the combustion residues out of the trough, and a shaft rotatably mounted in two shaft bearings and on which at least one drive lever cooperating with a cylinder-piston unit and at least two output levers connected to respectively one of the push rams are disposed in a rotationally secure manner. The cylinder-piston unit is here designed such that the push rams move back and forth between a retracted position and an extended position. The drive lever is disposed between two output levers.

Abstract: A heating apparatus for the combustion of highly variable biofuel feed stocks is generally provided. The apparatus generally includes a combustion chamber or burn box adapted to receive a regulated feed of biomass. The burn box includes a grate for receipt of a distributed mass of the regulated feed, and further includes an oscillating blade adjacent to the grate for agitation of the distributed mass of the regulated feed received thereby. The combustion apparatus for the production of thermal energy from a biofuel of the subject invention is preferably and further characterized by means for producing the distributed mass of the regulated feed of biofuel, and/or a burn box incorporating an oxygen manifold assembly adjacent to the grate.

Abstract: An incinerator includes a furnace with a supporting plate that defines a combustion chamber thereabove and an ash receiving chamber therebelow in the furnace. An ash control unit includes a partitioning member that divides the ash receiving chamber into upper and lower ash chambers and that defines a vertically extending ash channel communicated with the upper and lower ash chambers. A rake is disposed over the partitioning member for stirring and permitting uniform distribution of the high temperature ash on the partitioning member and for moving the high temperature ash into the ash channel. A rotary member is disposed rotatably in the ash channel and is formed with a plurality of angularly spaced apart fins which carry the high temperature ash falling from the upper ash chamber to the lower ash chamber.

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 arrangement for treating combustion residues of a combustion installation comprises an ash discharger into which opens a fall shaft, into which the solid combustion residues fall from a furnace grate. The ash is conveyed from the ash discharger into the discharge shaft via a diagonally ascending push-out chute by a push-out ram whose operating rate is so adjusted that the ash is piled up in the fall shaft in a tower formation reaching above the liquid level. Fresh water or a chemical is introduced into the discharge shaft via an inlet. The ash discharger water present in the ash discharger and charged with fine particles is drained into a hermetically sealed settling tank via a draw-off duct. Ash discharger water, with which a chemical can be mixed via another line, is fed from the upper region of the settling tank by a pump via a return line to spray nozzles which are arranged in the upper region of the fall shaft.

Abstract: An apparatus mounted to an enclosure housing of a water entrained ash hopper for dislodging ash pluggages across an ash discharge opening in the ash hopper to maintain passage of ash from the ash hopper. The apparatus comprising a plate rotatably and sealingly connected to the enclosure housing, and a cylinder, mounted to the plate. The cylinder mounted to the plate such that a rod assembly extending from the cylinder is angularly disposed through the plate toward the ash discharge opening so as to be selectively extendable through a selected area of the ash discharge opening along an arc-shaped path. The piston movable from a retracted position to an extended position such that the rod extends into the ash discharge opening to dislodge ash pluggages disposed across the ash discharge opening. The rod assembly adapted to convey a stream of high pressure fluid against the ash pluggage.

Abstract: A lump breaker apparatus mounted to an airlock of an economizer ash hopper for breaking up ash clinkers accumulated on a grating disposed in the airlock to maintain the passage of ash through the grating of the airlock. The apparatus comprising a pneumatic cylinder having a rod extending therefrom with a ramming plate connected to a distal end thereof and slidably disposed on the grating of the airlock, a mounting assembly for mounting the cylinder to the airlock and a seal assembly for providing a slidable seal about the rod. The ramming plate reciprocally movable from a retracted position to an extended position along the grating to impact the ash clinkers on the grating of the airlock with sufficient force to fragment such ash clinkers and to permit the passage of some ash clinkers through the grating.

Abstract: A filter-dryer unit has an agitator having an agitator arm provided with gas discharge nozzles directed at the bottom wall, which includes a liquid discharge filter element, of the vessel of the filter-dryer unit. High pressure, high velocity gas is discharged through the nozzles to break up and remove the heel, consisting of finished product not expelled by agitator action. Product particles from the heel, after the heel has been broken up, are removed by agitator action and by the pressure of the gas discharged through the nozzles, through a standard product discharge opening. A separator/filter unit is provided to separate particles from the gas being discharged through the vessels discharge opening. The agitator arm is provided with a nozzle directed at the side wall of the vessel to remove any residual product on the side wall and a nozzle directed at an angle to the side wall to facilitate removal of the heel adjacent the side wall.

Abstract: A cleaning system comprises a compressor for delivering pressurized air to an accumulator via a valve controlled line. An outlet line extends from the accumulator and terminates adjacent a furnace floor drain. Upon command the entire volume of pressurized air is instantaneously released from the accumulator for discharge out the outlet line and through the furnace drain. The relatively cooler, high pressurized air blasts impacts, vibrates and chills any slag deposits accumulating about the drain so as to remove the same. An alternative nozzle is disclosed which disperses the high impact blast about the drain.

Abstract: A cleaning system comprises a compressor for delivering pressurized air to an accumulator via a valve controlled line. An outlet line extends from the accumulator and terminates adjacent a furnace floor drain. Upon command the entire volume of pressurized air is instantaneously released from the accumulator for discharge out the outlet line and through the furnace drain. The relatively cooler, high pressurized air blasts impacts, vibrates and chills any slag deposits accumulating about the drain so as to remove the same. An alternative nozzle is disclosed which disperses the high impact blast about the drain.

Abstract: A dumping container for collecting, transporting and dumping primarily ashes removed from an incinerator. A pair of pivoted fore and aft frame members, of hollow box like crossection engage the tines of a manual cable operated hoist. The cable hoist provides the mobility needed to transport the dumping container to the incinerator, elevate it to the open top receiving vessel, and provide tilting and dumping in cooperation with a pair of hooking members on the bottom of the dumping container and the pivotal action of the dumping container fore and aft frame members. An integral water spray bar, connectable to an external water supply, provides water to wet down the ashes during the removal operation.

Abstract: An has included a furnace, a blower at one side of the furnace, a fuel supply means, a wind guiding means, a filter means, a broiling chamber, and a dust expelling means. The furnace has a combustion chamber at inner bottom portion adapted to burn trash therein by lighting a fire on the trash through the fuel supply means. Ashes results from burning trash are cleaned through a door on the broiling chamber. Waste gas results from burning trash is expelled through the filter means whereas most particles of the smoke are falling on the bottom of the furnace and only a few amount of particles and the Carbone Monoxide are expelled through exhaust fan of the filter means.

Abstract: Stoves fueled by biomass pellets are provided with a grate assembly that supports the pellets for combustion and directs combustion gas into the fire. The grate assembly includes a passive grate and a moveable elongate blade spaced above the upper surface of the grate to direct ash and clinkers through a plurality of elongate slots in the grate. The design of the planar plate and the movement of the blade serves to prevent the ash and clinkers from accumulating on the grate in amounts that could block the elongate slots and reduce the flow of combustion gas into the fire.

Abstract: A rotary combustor which includes a combustion barrel and a windbox disposed underneath the barrel. A scraper is mounted inside the windbox on a sloping bottom surface thereof which is movable along the surface to remove material therefrom.

Abstract: An ashbox for the hearth of a furnace adapted to burn solid fuel, descending along in inclined grate as it burns. The ashbox comprises an extractor chamber having a concave bottom which is part-cylindrical with horizontal generatrices. This chamber is normally filled with water to a level below the upper edge of the chamber. A vertical clinker well terminates at a lower lip below the upper edge of the chamber and is immersed in the water in the chamber. A scraper blade is reciprocated perpendicularly to the generatrices of the concave bottom. An inclined wall merges at its lower end with the concave bottom of the chamber and has an overflow at its upper end above the normal level of the water in the chamber. The arrangement is such that the scraper blade pushes ash up over the overflow lip. The extractor chamber is in two parts and can be opened by relative displacement of these parts to provide vertical access to the ash well.

Abstract: The system comprises a pyrolysis chamber having a tire carcass inlet port and communicating with at least a duct for supplying combustion air, the pyrolysis chamber further communicating with s steam generator and having a stationary bottom of frustum of cone shaped coaxially communicating with the combustion air duct, rotating arm members being moreover provided, associated with the stationary bottom, adapted to cause waste unburnt material to be discharged from an outlet port formed through the stationary bottom.

Abstract: A process and apparatus for the combustion of carbon-containing fuel in a reaction zone, with the products of combustion being removed from the top of the reaction zone and the slag from the bottom of the reaction zone. The reaction zone is separated from the bottom of the reactor by a partition wall having a central opening through which the slag is removed. The central opening is maintained open by a cylindrical member that is mounted below the partition wall and moved upwardly to clear the opening.

Abstract: An ash removal apparatus for a burner which produces ash moved through a discharge passage in the floor of the burner, including a circumferential ash-removing opening surrounding the grate of the burner, with the surfaces forming the opening being circumferentially progressively varied in spacing to crush and pass clinkers through the opening and out the discharge passage.

Abstract: A heating boiler for substantially continuous controlled combustion of baled straw. The boiler includes a straw feed channel communicating with a combustion chamber having a combustion zone adjacent the rear wall of the combustion chamber, a flue gas heat exchange chamber above the combustion chamber in communication with a flue gas vent and an ash collecting pit below the combustion chamber. A horizontal floor is disposed between the combustion chamber and the ash collecting pit, the floor having a slot adjacent the rear wall of the combustion chamber for passage of ash from the combustion zone into the ash collecting pit and for intake of primary air into the combustion zone. A vertically rotatable ash stripper assembly extends from the rear wall of the combustion chamber, and serves to strip ash from the straw bale surface being combusted in the combustion zone. The ash stripper assembly can be rotated by means of a hollow shaft which also constitutes a secondary air intake.

Abstract: Disclosed herein is an improved apparatus for removing fallen slag from beneath a flame cutting table. A three-sided scoop is positioned below the table. Co-acting guide members are mounted along the sides of the scoop and the table. Chains are fastened to each side of the scoop and extend around vertically positioned sprockets at opposite ends of the table. The chain is located below a portion of the table guide member for protection from falling slag and heat. A motor engages the sprockets to drag the scoop from one end of the table to the other. A tube fastened to the table is positioned for carrying the returning chain.