Abstract: A mobile machine includes front and rear ends, a frame, rotatably supported ground engaging mechanisms, and an electrical drive system. The electrical drive system includes a source of electrical energy, an inverter, at least one electric motor operatively coupled to rotate at least one of the ground engaging mechanisms, a plurality of first electric cables electrically coupling the source of electrical energy to the inverter, and a plurality of second electric cables electrically coupling the inverter to the electric motor. The inverter is disposed in the mobile machine in a vertical orientation at the rear end of the machine.

Abstract: An expansion constraint assembly can be attached to the exterior of a kiln cylinder. The expansion constraint assembly may include an outer constraining structure, an inner circular structure, and support structures extending between the inner circular structure and the outer constraining structure. The support structures may extend at an offset angle away from a radial direction of the outer constraining structure. The expansion constraint assembly may also include additional rings disposed between the inner circular structure and the outer constraining structure. The expansion constraint assembly can constrain asymmetric expansion of the kiln cylinder, for example, by relieving uniform expansion as a rotational shift, while restraining asymmetric expansion via tensile and compressive stresses in inter-connecting members.

Abstract: An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system.

Abstract: The present invention is directed to processing feedstock materials for recovery, recycling and/or reuse of the constituent components of the feedstock materials, and includes adding feedstock materials at a constant temperature to a thermal reactor, heating the feedstock materials at a temperature of 1,100° F. or higher in an anaerobic environment within the thermal reactor to produce cracked and gasified hydrocarbons and residual material, removing cracked and gasified hydrocarbons released from the feedstock materials from the thermal reactor, further processing the residual material to recover one or more constituent component of the feedstock materials, and oxidizing the cracked and gasified hydrocarbons removed from the thermal reactor having five or less carbon atoms in their molecular structure in order to produce heat to obtain the temperature of 1,100° F. or higher for the thermal reactor.

Abstract: An asphalt plant adapted to use RAP to produce asphalt. The preferred asphalt plant comprises a bin that is adapted to store the RAP, a heat source that is adapted to supply heat, a dryer that is adapted to dry the RAP, a mixer that is adapted the mix the RAP and a means for conveying the RAP from the bin to the dryer. The preferred asphalt plant uses substantially only the RAP to produce asphalt. A method for producing asphalt from RAP comprising providing an asphalt plant adapted to use the RAP to produce asphalt. The preferred method further comprises conveying the RAP from the bin to the dryer, drying the RAP, and mixing the RAP.

Abstract: A method of heating a charge material by controlling heat flux in a tilt rotary furnace is disclosed. Combustion by the burner forms a heat release profile including a high heat flux region. The positioning of the high heat flux region is controllable by providing a controlled amount of secondary or staged oxidant. The burner is configured and controlled to position a region of high heat flux at a position corresponding to an area requiring greater heating, such as the area of maximum charge depth in the furnace to provide substantially uniform melting and heat distribution.

Abstract: Disclosed is a process for calcining active blending material involving feeding material outside of a kiln head and the blending material obtained. The process comprises feeding material from outside of kiln head of rotary kiln into inside of kiln hood and to grate cooler, wherein the material is coal gangue, shale, clay, peat, mud and the like which can form active cement component through low temperature calcining, and calcining the material at low temperature. Disclosed also is a cement production apparatus for carrying out the process provided, comprising feeder nose(s) provided on the kiln hood and/or grate cooler for feeding the material.

Abstract: A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first end wall and a second end wall, the method including: feeding the lime mud into a flue gas flow in the interior of the rotary kiln shell or in close proximity to the shell to pretreat the lime mud; separating the pretreated lime mud from the flue gas flow; conveying the separated lime mud into the lime kiln, and calcining the separated lime mud in the lime kiln.

Abstract: A method for burning raw materials by which method the raw material and a secondary fuel are separately introduced to one and the same rotary kiln in which the raw material as well as the secondary fuel are heated by gases formed by burning of a primary fuel in the rotary kiln so that the secondary fuel is converted to gases and solid matter in the form of combustion residues such as ashes and coke. The secondary fuel during the process of conversion to gases and solid matter is kept separate from the introduced raw material, which may ensure that the secondary fuel and hence the locally reducing zones and major areas with reducing conditions are brought into minimum contact with the raw material.

Abstract: A NOx suppression apparatus is configured for use with a burner that injects fuel into a stream of process air flowing into and through a rotary kiln. The apparatus comprises a premix injection system that forms a premix of fuel gas and air, and injects the premix into the stream of process air upstream of the burner port. This enables premix products of combustion to suppress the production of NOx by vitiating a combustion air portion of the process air before the combustion air portion combusts with fuel injected from the burner port.

Abstract: The invention relates to a process for manufacturing cement clinker in a plant having a cyclone preheater, a precalcination reactor, a rotary furnace and a clinker cooler. In the process, the flue gases from the furnace are conducted to the precalcination reactor, or even to the cyclone preheater. According to the invention, the precalcination reactor is fed with an oxygen-rich gas, the nitrogen content of which is less than 30%, constituting the sole oxygen source for said reactor, and a portion leaving the cyclone preheater is recycled into the plant so as to obtain a suitable flux necessary for suspending matter in said preheater, while the other portion, rich in carbon dioxide, is adapted for the purpose of a treatment for limiting the amount of carbon dioxide discharged into the atmosphere, such as particularly sequestration.

Abstract: This drive device (6) is capable of transmitting a drive torque to the combustion chamber of a rotary kiln. The drive device (6) includes a drive ring gear (8) adapted so as to be attached to the combustion chamber. At least a portion of the drive ring gear (8) is fabricated out of cast iron.

Abstract: The present disclosure refers to an arrangement for the aerobic heating of pourable solid matter, comprising: a rotatable rotary drum for receiving the pourable solid matter, at least one front wall which is non-rotatably arranged relative to the rotary drum for closing a front side of the rotary drum, and a sealing arrangement between the rotary drum and the front wall, the sealing arrangement comprising a cylindrical sealing surface coaxial to the rotary drum and a sealing element sliding on the cylindrical sealing surface.

Abstract: A rotary kiln includes a cylindrical shell that rotates about its own axis and that has a heat treatment chamber provided radially inward of the shell. In the rotary kiln, a heat treatment is performed on a process material in the heat treatment chamber to manufacture a battery material. The shell is made of a carbon material. Since the shell is made of a carbon material, the rotary kiln can suppress contamination of metal scale, which adversely affects the battery material, into the battery material.

Abstract: A method for manufacturing cement by which method cement raw materials, such as limestone and clay, are comminuted in a comminution apparatus for subsequently being heated and burned into cement clinker. The cement clinker is then cooled and directed to a comminution apparatus for comminution to cement. For some embodiments of the method, the cement raw materials and cement clinker may undergo comminution in one and the same comminution apparatus.

Abstract: A turning roll system for rotating a cylindrical workpiece about a workpiece axis comprises a pair of idler rollers cooperating with a pair of drive rollers to support the workpiece. To oppose axial drift of the workpiece, each idler roller is rotatably journalled on a respective idler axle such that the axis of rotation of the idler roller is oriented obliquely relative to a pivot axis of the idler axle. The idler axles may be pivoted about their respective pivot axes to adjust the orientation of the idler roller axes relative to the workpiece to introduce an axially directed force component acting on the workpiece to counter axial drift. Pivoting of the idler axles may be automatically controlled based on a signal generated by a drift sensor arranged to detect axial drift of the workpiece.

Abstract: Disclosed is a process for the calcining and manufacturing of synthetic pozzolan with desirable color properties. Feed material is dried, crushed, and preheated in a drier crusher. The dry, crushed material is collected and fed to a calciner where it is heated to become a synthetic pozzolan. The synthetic pozzolan is then fed to a cooler where it is maintained for a least a portion of the cooling step in a reducing atmosphere.

Abstract: The invention relates to a process for manufacturing clinker from a raw mix, implementing the following: preheating of the raw mix by combustion flue gases; precalcination of the raw mix; and calcination of the precalcined raw mix in a rotary kiln, in which process the precalcination and the calcination in the rotary kiln produce combustion flue gases that contain CO2, in which the combustion flue gases created by the precalcination undergo a CO2-removal treatment without said flue gases mixing with the combustion flue gases created by the calcination in the rotary kiln.

Abstract: A method of heating a charge material by controlling heat flux in a tilt rotary furnace is disclosed. Combustion by the burner forms a heat release profile including a high heat flux region. The positioning of the high heat flux region is controllable by providing a controlled amount of secondary or staged oxidant. The burner is configured and controlled to position a region of high heat flux at a position corresponding to an area requiring greater heating, such as the area of maximum charge depth in the furnace to provide substantially uniform melting and heat distribution.

Abstract: This invention relates to a rotary furnace that is designed for the heat treatment of solids comprising at least one rotary tube (1) into which the solids are introduced and a heating means outside of the rotary tube that makes it possible to conduct the heat treatment, characterized in that the rotary tube comprises—on its inside surface, in contact with the feedstock to be treated—at least 1 heating blade (30, 31, 32, 33, 34, 35, 36, 37, 38). The invention also relates to the use of this furnace for conducting the roasting of solid biomass.

Abstract: Self supporting kiln insulation device comprising an outer layer having an inside surface, at least two insulation modules, and, a stationary support structure. The insulation modules do not touch the kiln and heat dams are located adjacent to and touching the kiln, and are spaced at random spacing along the kiln.

Abstract: A method for burning raw materials by which method the raw material and a secondary fuel are separately introduced to one and the same rotary kiln in which the raw material as well as the secondary fuel are heated by gases formed by burning of a primary fuel in the rotary kiln so that the secondary fuel is converted to gases and solid matter in the form of combustion residues such as ashes and coke. The secondary fuel during the process of conversion to gases and solid matter is kept separate from the introduced raw material, which may ensure that the secondary fuel and hence the locally reducing zones and major areas with reducing conditions are brought into minimum contact with the raw material.

Abstract: A reactor for direct utilization of external radiation heat includes a containment can having a longitudinal axis, an external driving mechanism for controllable rotating the containment can and a cavity having a cylindrical shape. The cavity is partially lined with an insulation layer and disposed in the containment can. The cavity has a gas inlet, a gas outlet and an aperture for allowing to insert the external radiation heat into the cavity. A feeder mechanism is moveable along the longitudinal axis into and out of the cavity for supplying the material subject to the thermal or thermo-chemical material process. The gas outlet is formed as a ring channel tube having an inner and an outer surface, wherein the feeder mechanism is at least partially hosted within a tube cavity defined by the inner surface. Cooling means are associated with the inner and/or outer surface.

Abstract: A cement kiln chlorine/sulfur bypass system wherein the equipment cost is suppressed and the sulfur included in a combustion gas bled from a cement kiln is separated and effectively utilized. The cement kiln chlorine/sulfur bypass system comprises an air bleed means for bleeding a kiln exhaust gas passage, which runs from the end of the cement kiln to a bottom cyclone, of a part of the combustion gas, a separating means for separating dust in the gas bled by the air bleed means into coarse particles and fine particles, and a wet dust collector for collecting dust from the gas containing the fine particles separated by the separating means. The separating means is preferably a classifier in which the cut size is changeable. The wet dust collector is preferably a mixing scrubber.

Abstract: The present invention is an apparatus and method for producing a steam and CO2 mixture, as a super heated dry steam mixture. The apparatus includes a rotatable vessel having a combustion section and a steam producing section. There may also be a dry solid removal, a steam production and solid scrubbing vertical vessel, and a heat exchanger. The vessel is partially filled with spherical bodies, and the sections are partially separated by a partition. A discharge section is located at an end of the steam producing section. A homogenizing section has at least one partition wall guiding flow of gases. The process for producing the steam mixture includes mixing a low quality fuel with an oxidation gas, combusting in a rotating drum filled with spherical bodies, and mixing low quality water with a controlled temperature to generate steam. All liquids convert to gas so that there is no liquid discharge.

Abstract: The invention relates to a method and apparatus for processing oil drilling waste. According to the invention, oil drilling waste of one or more types is selected, and is introduced from the feeding tanks into a rotating kiln; and in the kiln, the oil drilling waste is processed at a temperature of 110 to 13500° C. to form granules having a compact-coated surface.

Abstract: The present invention relates to a furnace (10), its method of operation and control. The invention overcomes problems associated with existing furnaces by improving the recovery rate of waste metal. In a preferred embodiment the furnace (10) comprises a cylindrical body of constant internal diameter. The furnace body (12) is mounted on a frame (15) pivoted to a ground members (16a and 16b), the furnace body (12) is adapted to be reclined or inclined or at various angles (? and ?); a burner (30) to heat the furnace, and a door (19a, 19b) for sealing an open end (14). As the internal walls of the furnace body (12) are of a constant diameter, it is no longer necessary to incline the furnace (10) to such a degree in order to pour molten metal, because there is no narrow neck (which previously acted like a weir). In a preferred embodiment combustion air is routed through the door hinge to the burner (30).

Abstract: To provide a cement burning apparatus and a method of drying high-water-content organic waste capable of reducing a danger of explosion at a facility for drying; avoiding decreased value of dried sludge as a fuel: and more efficiently drying high-water-content organic waste. The cement burning apparatus 1 comprises a dryer 6 for drying high-water-content organic waste of which water content is 40 mass percent or more, in which combustion gas extracted from outlet portions or ceiling portions of preheater cyclones 3A to 3D of a cement kiln 2 is fed to the dryer 6. As the dryer 6, a grinding-type flash dryer, which directly contacts the combustion gas G with the high-water-content organic waste W while grinding it, can be used.

Abstract: In a method for utilizing alternative fuels in the production of clinker or cement the alternative fuels are employed in reactors (4) for the preheating and/or precalcining of raw meal in a combustion device (17) separate from the burners (12) of the respective reactor (4) and are at least partially burnt whereupon an, if necessary, complete combustion is carried out inside the reactors (4) with the combustion oxygen fed to the burner (12) of the reactor (4) in excess of stoichiometry. The device for utilizing alternative fuels in the production of clinker or cement having a clinker kiln (1) and a reactor (4) with burners (12) for preheating and calcining of raw meal and having at least one duct (18) for combustion air or -oxygen respectively is characterized in that a separate combustion device (17) having a conveyor for alternative fuels such as, for instance, a pusher or a screw conveyor (16) is provided and opens inside the respective reactor (4).

Abstract: The present invention relates to a tilting heating apparatus in which a heating container is not lowered below the level of a tilting base when the heating container is tilted with its opening faced upward and an on-the-spot heat treatment system for a heating object.

Abstract: Self supporting kiln insulation device comprising an outer layer having an inside surface, at least two insulation modules, at least two heat dams, and, a stationary support structure. The insulation modules do not touch the kiln and heat dams are located adjacent to and touching the kiln, and are spaced at random and at predetermined distances apart from each other.

Abstract: The invention relates to a method for introducing a flowable and foamable reaction mixture from the top into a ballast body having sleepers embedded therein, in which method said mixture is introduced into the ballast body laterally of the sleepers, notably preferably depending on the height of the ballast body at the point of application, and in a quantity that is all the larger the more upwards in the ballast body the application point is situated, wherein the mixture is adjusted in such a way that the foam formation process will begin only when the front of the mixture flowing downwards inside the ballast body has reached the bottom side or the region in the vicinity thereof of the ballast body so that the foam formation is carried out within the ballast body from the bottom towards the top.

Abstract: A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.

Abstract: In a kiln whose interior is heated by combustion with oxidant having a higher oxygen content than air, streams of staging oxidant are fed into the space between the combustion zone and the inner surface of the kiln, and the stoichiometric ratios and amounts of oxygen in the combustion zone and in the overall operation of the kiln are adjusted to provide control or reduction of NOx formation while maintaining or increasing productivity of the kiln.

Abstract: The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace to be fed with a mixture of polyester and an alkaline material and is for carrying out a saponification reaction in the mixture. The invention is distinguished in that within the rotary tubular furnace a weir is disposed which at least partly closes the interior of the rotary tubular furnace.

Abstract: The single substrate thermal processing apparatus (2) includes a process chamber (5) arranged to accommodate a target substrate (W) and provided with a showerhead (10) disposed on its ceiling. A support member (28) is disposed to support the target substrate (W) so as for it to face the showerhead (10), when the target substrate (W) is subjected to a semiconductor process. A heating lamp (30) is disposed below the support member (28), for radiating light to heat the target substrate (W). The support member (28) and heating lamp (30) are moved up and down together relative to the showerhead (10) by an elevator mechanism (20). The elevator mechanism (20) sets different distances between the showerhead (30) and heating lamp (10), in accordance with the different process temperatures, thereby causing temperature change of the bottom surface of the showerhead (10) to fall in a predetermined range.

Abstract: A burner protection shield is provided at a distance and in an area below a burner lance that is used in a rotary kiln for the production of cement clinker. Such a mechanism enhances the useful lifetime of the burner lance.

Abstract: An insulating flight for a dryer incorporates inner and outer plates with insulation between them. The concave surfaces of the inner and outer plates provide a space for the insulation and allow for thermal expansion without stressing the welds between the inner and outer plates.

Abstract: Disclosed is a rotary kiln that can be used efficiently in drying, dry distillation and incineration of various garbage and industrial wastes. The rotary kiln comprises a cylindrical furnace body (10) disposed to incline at a small angle from the horizontal plane, a cylindrical contact heater (20) supported in the furnace body (10), a rotation drive means (30) that drives the furnace body (10) and the contact heater (20) to rotate, a waste charging port (61), a processed material discharging port (18), a combustion gas supply means (40) that supplies a combustion gas into the cylindrical contact heater (20) and a combustion gas introducing means (50) that guides the combustion gas through the contact heater (20) from a distal end to a proximate end thereof, and then guides the combustion gas through a space (S) between the contact heater (20) and the furnace body (10) from the proximate end to the distal end, thereby to charge.

Abstract: The present invention relates to an apparatus for preparing polynucleotides on a solid support in a reactor comprising a column containing an immobilized solid support that is functionalized for polynucleotide synthesis. The solid support can be porous, and can be functionalized with a nucleoside or with a universal synthesis of polynucleotides.

Abstract: The invention relates to a device for purifying and/or decontaminating polyester, in particular polyethylene terephthalate (PET). Said device has a rotary kiln (1), which is at least partially heated and fed with a mixture of polyester and an alkaline material, for carrying out a saponification reaction in the mixture. The invention is characterised in that the rotary kiln (1) contains a weir-type element (22), which closes at least part of the interior (5) of said kiln (1).

Abstract: A rotary furnace includes a drum and a frame supporting the drum for rotation about a nominally horizontal rotational axis. The frame and the drum are supported for pivotal movement about a horizontal pivotal axis. A door supported on the frame normally closes the front end of the drum and is selectively pivotal to an open position to facilitate charging of the drum. The door includes a pouring door which is openable to facilitate discharge of molten material from the drum.

Abstract: A warp resistant fuel feed door assembly for use in injecting supplemental fuel into a high temperature combustion chamber such as a rotating cement kiln without substantial loss of heat or combustion gases. The apparatus, which is positioned on the exterior side of a fuel passage transecting the wall of a rotating kiln, opens to receive fuel and then seals during the balance of the rotation of the kiln. Warping, bearing fracture, shaft distortion and jamming due to exposure to extreme heat and cooling are minimized by the sectional construction of the doors. The door includes a plate positioned over the mouth of the passage, a plurality of support arms attached to the plate and a hinge shaft attached to the arms. Stresses on the door structure from inconsistent expansion of the plate are reduced due to symmetrically spaced oblong and oversized bolt attachment bores in the support arms. Synchronous opening of the feed doors is achieved by levered rotation of the hinge shafts by an electric motor.

Abstract: A rotary drum heater for mixing asphalt with a hot gas introduced into the drum by gas burners is disclosed. The drum has an inlet opening for material to enter the drum to be processed and an outlet opening for material to exit. The hot gas is blown into the interior of the drum and is diverted by a hot gas conduit segment that is designed to gently heat the asphalt.

Abstract: A grizzly bar device for a rotating kiln having an annular array of bars having at least two adjacent bars, wherein the thickness the bars is reduced in lateral and radial directions, and gap between the adjacent bars increases in width as the bars extend laterally from front to back of the bar and extend radially inward of the kiln. Another taper on a front face of the bars provides a cutting corner on each bar.

Abstract: A rotary furnace includes a drum and a frame supporting the frame for rotation about a nominally horizontal rotational axis. The frame and the drum are supported for pivotal movement about a horizontal pivotal axis. A door supported on the frame normally closes the front end of the drum and is selectively pivotal to an open position to facilitate charging of the drum. The door includes a pouring door which is openable to facilitate discharge of molten material from the drum.

Abstract: A rotary drum for carrying out chemical processes at elevated temperatures which includes a rolling body arrangement for cleaning the interior of the drum, a stationary feed end for the material to be treated, a mounting device for the rolling body arrangement on the feed end of the rotary drum, and a rotary bearing that allows the rolling body to roll on the inner side of the rotary drum wall and which connects the rolling body to the mounting device. The rotary drum further including an oblong scraping device which is arranged between the mounting device and said rotary bearing. Since the scraping device is mounted on the mounting device, it is able to carry out a pendulum motion in at least one direction, but unable to turn about itself, and the end of the scraping device on the side of the rotary bearing is connected to the rotary bearing in such a way that it is able to carry out a pendulum motion in at least one direction.

Abstract: A rotary furnace includes a drum and a frame supporting the frame for rotation about a nominally horizontal rotational axis. The frame and the drum are supported for pivotal movement about a horizontal pivotal axis. A door supported on the frame normally closes the front end of the drum and is selectively pivotal to an open position to facilitate charging of the drum. The door includes a pouring door which is openable to facilitate discharge of molten material from the drum.

Abstract: The powder homogenizing apparatus of the invention comprises a cylindrical shell with a circular section and a substantially horizontal axis, an assembly of cylindrical drums disposed inside the shell and comprising an inner drum and an outer drum, the external face of the cylindrical wall of said outer drum being overlaid with blades, which drum assembly can homogenize the powder contained in the annular space formed between the outer drum and the shell, a space of revolution being formed between said inner and outer drums, and a shaft on which said cylindrical drum assembly is mounted in integral manner, said shaft being hollow and connected outside the shell to a cold air supply system and also connected to an air exhaust system outside the shell; drive means for rotating said shaft are also provided.

Abstract: A rotary kiln for pyroprocessing particulate material includes a cylindrical kiln shell supported for rotation about a longitudinal central axis. The kiln has a plurality of circumferentially spaced peripheral openings provided in the kiln shell near its exit end for discharging pyroprocessed particulate material therethrough. A raised grate disposed over each discharge opening has a generally convex geometric profile that projects into the interior of said kiln shell.